contrib/ntp/ntpq/ntpq-subs.c

   1 /*
   2  * ntpq-subs.c - subroutines which are called to perform ntpq commands.
   3  */
   4 #include <config.h>
   5 #include <stdio.h>
   6 #include <ctype.h>
   7 #include <sys/types.h>
   8 #include <sys/time.h>
   9
  10 #include "ntpq.h"
  11 #include "ntpq-opts.h"
  12
  13 extern char     currenthost[];
  14 extern int      currenthostisnum;
  15 size_t          maxhostlen;
  16
  17 /*
  18  * Declarations for command handlers in here
  19  */
  20 static  associd_t checkassocid  (u_int32);
  21 static  struct varlist *findlistvar (struct varlist *, char *);
  22 static  void    doaddvlist      (struct varlist *, const char *);
  23 static  void    dormvlist       (struct varlist *, const char *);
  24 static  void    doclearvlist    (struct varlist *);
  25 static  void    makequerydata   (struct varlist *, size_t *, char *);
  26 static  int     doquerylist     (struct varlist *, int, associd_t, int,
  27                                  u_short *, size_t *, const char **);
  28 static  void    doprintvlist    (struct varlist *, FILE *);
  29 static  void    addvars         (struct parse *, FILE *);
  30 static  void    rmvars          (struct parse *, FILE *);
  31 static  void    clearvars       (struct parse *, FILE *);
  32 static  void    showvars        (struct parse *, FILE *);
  33 static  int     dolist          (struct varlist *, associd_t, int, int,
  34                                  FILE *);
  35 static  void    readlist        (struct parse *, FILE *);
  36 static  void    writelist       (struct parse *, FILE *);
  37 static  void    readvar         (struct parse *, FILE *);
  38 static  void    writevar        (struct parse *, FILE *);
  39 static  void    clocklist       (struct parse *, FILE *);
  40 static  void    clockvar        (struct parse *, FILE *);
  41 static  int     findassidrange  (u_int32, u_int32, int *, int *,
  42                                  FILE *);
  43 static  void    mreadlist       (struct parse *, FILE *);
  44 static  void    mreadvar        (struct parse *, FILE *);
  45 static  void    printassoc      (int, FILE *);
  46 static  void    associations    (struct parse *, FILE *);
  47 static  void    lassociations   (struct parse *, FILE *);
  48 static  void    passociations   (struct parse *, FILE *);
  49 static  void    lpassociations  (struct parse *, FILE *);
  50
  51 #ifdef  UNUSED
  52 static  void    radiostatus (struct parse *, FILE *);
  53 #endif  /* UNUSED */
  54
  55 static  void    authinfo        (struct parse *, FILE *);
  56 static  void    pstats          (struct parse *, FILE *);
  57 static  long    when            (l_fp *, l_fp *, l_fp *);
  58 static  char *  prettyinterval  (char *, size_t, long);
  59 static  int     doprintpeers    (struct varlist *, int, int, size_t, const char *, FILE *, int);
  60 static  int     dogetpeers      (struct varlist *, associd_t, FILE *, int);
  61 static  void    dopeers         (int, FILE *, int);
  62 static  void    peers           (struct parse *, FILE *);
  63 static  void    doapeers        (int, FILE *, int);
  64 static  void    apeers          (struct parse *, FILE *);
  65 static  void    lpeers          (struct parse *, FILE *);
  66 static  void    doopeers        (int, FILE *, int);
  67 static  void    opeers          (struct parse *, FILE *);
  68 static  void    lopeers         (struct parse *, FILE *);
  69 static  void    config          (struct parse *, FILE *);
  70 static  void    saveconfig      (struct parse *, FILE *);
  71 static  void    config_from_file(struct parse *, FILE *);
  72 static  void    mrulist         (struct parse *, FILE *);
  73 static  void    ifstats         (struct parse *, FILE *);
  74 static  void    reslist         (struct parse *, FILE *);
  75 static  void    sysstats        (struct parse *, FILE *);
  76 static  void    sysinfo         (struct parse *, FILE *);
  77 static  void    kerninfo        (struct parse *, FILE *);
  78 static  void    monstats        (struct parse *, FILE *);
  79 static  void    iostats         (struct parse *, FILE *);
  80 static  void    timerstats      (struct parse *, FILE *);
  81
  82 /*
  83  * Commands we understand.      Ntpdc imports this.
  84  */
  85 struct xcmd opcmds[] = {
  86         { "saveconfig", saveconfig, { NTP_STR, NO, NO, NO },
  87                 { "filename", "", "", ""},
  88                 "save ntpd configuration to file, . for current config file"},
  89         { "associations", associations, {  NO, NO, NO, NO },
  90           { "", "", "", "" },
  91           "print list of association ID's and statuses for the server's peers" },
  92         { "passociations", passociations,   {  NO, NO, NO, NO },
  93           { "", "", "", "" },
  94           "print list of associations returned by last associations command" },
  95         { "lassociations", lassociations,   {  NO, NO, NO, NO },
  96           { "", "", "", "" },
  97           "print list of associations including all client information" },
  98         { "lpassociations", lpassociations, {  NO, NO, NO, NO },
  99           { "", "", "", "" },
 100           "print last obtained list of associations, including client information" },
 101         { "addvars",    addvars,    { NTP_STR, NO, NO, NO },
 102           { "name[=value][,...]", "", "", "" },
 103           "add variables to the variable list or change their values" },
 104         { "rmvars", rmvars,     { NTP_STR, NO, NO, NO },
 105           { "name[,...]", "", "", "" },
 106           "remove variables from the variable list" },
 107         { "clearvars",  clearvars,  { NO, NO, NO, NO },
 108           { "", "", "", "" },
 109           "remove all variables from the variable list" },
 110         { "showvars",   showvars,   { NO, NO, NO, NO },
 111           { "", "", "", "" },
 112           "print variables on the variable list" },
 113         { "readlist",   readlist,   { OPT|NTP_UINT, NO, NO, NO },
 114           { "assocID", "", "", "" },
 115           "read the system or peer variables included in the variable list" },
 116         { "rl",     readlist,   { OPT|NTP_UINT, NO, NO, NO },
 117           { "assocID", "", "", "" },
 118           "read the system or peer variables included in the variable list" },
 119         { "writelist",  writelist,  { OPT|NTP_UINT, NO, NO, NO },
 120           { "assocID", "", "", "" },
 121           "write the system or peer variables included in the variable list" },
 122         { "readvar", readvar,    { OPT|NTP_UINT, OPT|NTP_STR, OPT|NTP_STR, OPT|NTP_STR, },
 123           { "assocID", "varname1", "varname2", "varname3" },
 124           "read system or peer variables" },
 125         { "rv",      readvar,    { OPT|NTP_UINT, OPT|NTP_STR, OPT|NTP_STR, OPT|NTP_STR, },
 126           { "assocID", "varname1", "varname2", "varname3" },
 127           "read system or peer variables" },
 128         { "writevar",   writevar,   { NTP_UINT, NTP_STR, NO, NO },
 129           { "assocID", "name=value,[...]", "", "" },
 130           "write system or peer variables" },
 131         { "mreadlist",  mreadlist,  { NTP_UINT, NTP_UINT, NO, NO },
 132           { "assocIDlow", "assocIDhigh", "", "" },
 133           "read the peer variables in the variable list for multiple peers" },
 134         { "mrl",    mreadlist,  { NTP_UINT, NTP_UINT, NO, NO },
 135           { "assocIDlow", "assocIDhigh", "", "" },
 136           "read the peer variables in the variable list for multiple peers" },
 137         { "mreadvar",   mreadvar,   { NTP_UINT, NTP_UINT, OPT|NTP_STR, NO },
 138           { "assocIDlow", "assocIDhigh", "name=value[,...]", "" },
 139           "read peer variables from multiple peers" },
 140         { "mrv",    mreadvar,   { NTP_UINT, NTP_UINT, OPT|NTP_STR, NO },
 141           { "assocIDlow", "assocIDhigh", "name=value[,...]", "" },
 142           "read peer variables from multiple peers" },
 143         { "clocklist",  clocklist,  { OPT|NTP_UINT, NO, NO, NO },
 144           { "assocID", "", "", "" },
 145           "read the clock variables included in the variable list" },
 146         { "cl",     clocklist,  { OPT|NTP_UINT, NO, NO, NO },
 147           { "assocID", "", "", "" },
 148           "read the clock variables included in the variable list" },
 149         { "clockvar",   clockvar,   { OPT|NTP_UINT, OPT|NTP_STR, NO, NO },
 150           { "assocID", "name=value[,...]", "", "" },
 151           "read clock variables" },
 152         { "cv",     clockvar,   { OPT|NTP_UINT, OPT|NTP_STR, NO, NO },
 153           { "assocID", "name=value[,...]", "", "" },
 154           "read clock variables" },
 155         { "pstats",    pstats,    { NTP_UINT, NO, NO, NO },
 156           { "assocID", "", "", "" },
 157           "show statistics for a peer" },
 158         { "peers",  peers,      { OPT|IP_VERSION, NO, NO, NO },
 159           { "-4|-6", "", "", "" },
 160           "obtain and print a list of the server's peers [IP version]" },
 161         { "apeers",  apeers,      { OPT|IP_VERSION, NO, NO, NO },
 162           { "-4|-6", "", "", "" },
 163           "obtain and print a list of the server's peers and their assocIDs [IP version]" },
 164         { "lpeers", lpeers,     { OPT|IP_VERSION, NO, NO, NO },
 165           { "-4|-6", "", "", "" },
 166           "obtain and print a list of all peers and clients [IP version]" },
 167         { "opeers", opeers,     { OPT|IP_VERSION, NO, NO, NO },
 168           { "-4|-6", "", "", "" },
 169           "print peer list the old way, with dstadr shown rather than refid [IP version]" },
 170         { "lopeers", lopeers,   { OPT|IP_VERSION, NO, NO, NO },
 171           { "-4|-6", "", "", "" },
 172           "obtain and print a list of all peers and clients showing dstadr [IP version]" },
 173         { ":config", config,   { NTP_STR, NO, NO, NO },
 174           { "<configuration command line>", "", "", "" },
 175           "send a remote configuration command to ntpd" },
 176         { "config-from-file", config_from_file, { NTP_STR, NO, NO, NO },
 177           { "<configuration filename>", "", "", "" },
 178           "configure ntpd using the configuration filename" },
 179         { "mrulist", mrulist, { OPT|NTP_STR, OPT|NTP_STR, OPT|NTP_STR, OPT|NTP_STR },
 180           { "tag=value", "tag=value", "tag=value", "tag=value" },
 181           "display the list of most recently seen source addresses, tags mincount=... resall=0x... resany=0x..." },
 182         { "ifstats", ifstats, { NO, NO, NO, NO },
 183           { "", "", "", "" },
 184           "show statistics for each local address ntpd is using" },
 185         { "reslist", reslist, { NO, NO, NO, NO },
 186           { "", "", "", "" },
 187           "show ntpd access control list" },
 188         { "sysinfo", sysinfo, { NO, NO, NO, NO },
 189           { "", "", "", "" },
 190           "display system summary" },
 191         { "kerninfo", kerninfo, { NO, NO, NO, NO },
 192           { "", "", "", "" },
 193           "display kernel loop and PPS statistics" },
 194         { "sysstats", sysstats, { NO, NO, NO, NO },
 195           { "", "", "", "" },
 196           "display system uptime and packet counts" },
 197         { "monstats", monstats, { NO, NO, NO, NO },
 198           { "", "", "", "" },
 199           "display monitor (mrulist) counters and limits" },
 200         { "authinfo", authinfo, { NO, NO, NO, NO },
 201           { "", "", "", "" },
 202           "display symmetric authentication counters" },
 203         { "iostats", iostats, { NO, NO, NO, NO },
 204           { "", "", "", "" },
 205           "display network input and output counters" },
 206         { "timerstats", timerstats, { NO, NO, NO, NO },
 207           { "", "", "", "" },
 208           "display interval timer counters" },
 209         { 0,            0,              { NO, NO, NO, NO },
 210           { "-4|-6", "", "", "" }, "" }
 211 };
 212
 213
 214 /*
 215  * Variable list data space
 216  */
 217 #define MAXLINE         512     /* maximum length of a line */
 218 #define MAXLIST         128     /* maximum variables in list */
 219 #define LENHOSTNAME     256     /* host name limit */
 220
 221 #define MRU_GOT_COUNT   0x1
 222 #define MRU_GOT_LAST    0x2
 223 #define MRU_GOT_FIRST   0x4
 224 #define MRU_GOT_MV      0x8
 225 #define MRU_GOT_RS      0x10
 226 #define MRU_GOT_ADDR    0x20
 227 #define MRU_GOT_ALL     (MRU_GOT_COUNT | MRU_GOT_LAST | MRU_GOT_FIRST \
 228                          | MRU_GOT_MV | MRU_GOT_RS | MRU_GOT_ADDR)
 229
 230 /*
 231  * mrulist() depends on MRUSORT_DEF and MRUSORT_RDEF being the first two
 232  */
 233 typedef enum mru_sort_order_tag {
 234         MRUSORT_DEF = 0,        /* lstint ascending */
 235         MRUSORT_R_DEF,          /* lstint descending */
 236         MRUSORT_AVGINT,         /* avgint ascending */
 237         MRUSORT_R_AVGINT,       /* avgint descending */
 238         MRUSORT_ADDR,           /* IPv4 asc. then IPv6 asc. */
 239         MRUSORT_R_ADDR,         /* IPv6 desc. then IPv4 desc. */
 240         MRUSORT_COUNT,          /* hit count ascending */
 241         MRUSORT_R_COUNT,        /* hit count descending */
 242         MRUSORT_MAX,            /* special: count of this enum */
 243 } mru_sort_order;
 244
 245 const char * const mru_sort_keywords[MRUSORT_MAX] = {
 246         "lstint",               /* MRUSORT_DEF */
 247         "-lstint",              /* MRUSORT_R_DEF */
 248         "avgint",               /* MRUSORT_AVGINT */
 249         "-avgint",              /* MRUSORT_R_AVGINT */
 250         "addr",                 /* MRUSORT_ADDR */
 251         "-addr",                /* MRUSORT_R_ADDR */
 252         "count",                /* MRUSORT_COUNT */
 253         "-count",               /* MRUSORT_R_COUNT */
 254 };
 255
 256 typedef int (*qsort_cmp)(const void *, const void *);
 257
 258 /*
 259  * Old CTL_PST defines for version 2.
 260  */
 261 #define OLD_CTL_PST_CONFIG              0x80
 262 #define OLD_CTL_PST_AUTHENABLE          0x40
 263 #define OLD_CTL_PST_AUTHENTIC           0x20
 264 #define OLD_CTL_PST_REACH               0x10
 265 #define OLD_CTL_PST_SANE                0x08
 266 #define OLD_CTL_PST_DISP                0x04
 267
 268 #define OLD_CTL_PST_SEL_REJECT          0
 269 #define OLD_CTL_PST_SEL_SELCAND         1
 270 #define OLD_CTL_PST_SEL_SYNCCAND        2
 271 #define OLD_CTL_PST_SEL_SYSPEER         3
 272
 273 char flash2[] = " .+*    "; /* flash decode for version 2 */
 274 char flash3[] = " x.-+#*o"; /* flash decode for peer status version 3 */
 275
 276 struct varlist {
 277         const char *name;
 278         char *value;
 279 } g_varlist[MAXLIST] = { { 0, 0 } };
 280
 281 /*
 282  * Imported from ntpq.c
 283  */
 284 extern int showhostnames;
 285 extern int wideremote;
 286 extern int rawmode;
 287 extern struct servent *server_entry;
 288 extern struct association *assoc_cache;
 289 extern u_char pktversion;
 290
 291 typedef struct mru_tag mru;
 292 struct mru_tag {
 293         mru *           hlink;  /* next in hash table bucket */
 294         DECL_DLIST_LINK(mru, mlink);
 295         int             count;
 296         l_fp            last;
 297         l_fp            first;
 298         u_char          mode;
 299         u_char          ver;
 300         u_short         rs;
 301         sockaddr_u      addr;
 302 };
 303
 304 typedef struct ifstats_row_tag {
 305         u_int           ifnum;
 306         sockaddr_u      addr;
 307         sockaddr_u      bcast;
 308         int             enabled;
 309         u_int           flags;
 310         int             mcast_count;
 311         char            name[32];
 312         int             peer_count;
 313         int             received;
 314         int             sent;
 315         int             send_errors;
 316         u_int           ttl;
 317         u_int           uptime;
 318 } ifstats_row;
 319
 320 typedef struct reslist_row_tag {
 321         u_int           idx;
 322         sockaddr_u      addr;
 323         sockaddr_u      mask;
 324         u_long          hits;
 325         char            flagstr[128];
 326 } reslist_row;
 327
 328 typedef struct var_display_collection_tag {
 329         const char * const tag;         /* system variable */
 330         const char * const display;     /* descriptive text */
 331         u_char type;                    /* NTP_STR, etc */
 332         union {
 333                 char *          str;
 334                 sockaddr_u      sau;    /* NTP_ADD */
 335                 l_fp            lfp;    /* NTP_LFP */
 336         } v;                            /* retrieved value */
 337 } vdc;
 338 #if !defined(MISSING_C99_STRUCT_INIT)
 339 # define VDC_INIT(a, b, c) { .tag = a, .display = b, .type = c }
 340 #else
 341 # define VDC_INIT(a, b, c) { a, b, c }
 342 #endif
 343 /*
 344  * other local function prototypes
 345  */
 346 static int      mrulist_ctrl_c_hook(void);
 347 static mru *    add_mru(mru *);
 348 static int      collect_mru_list(const char *, l_fp *);
 349 static int      fetch_nonce(char *, size_t);
 350 static int      qcmp_mru_avgint(const void *, const void *);
 351 static int      qcmp_mru_r_avgint(const void *, const void *);
 352 static int      qcmp_mru_addr(const void *, const void *);
 353 static int      qcmp_mru_r_addr(const void *, const void *);
 354 static int      qcmp_mru_count(const void *, const void *);
 355 static int      qcmp_mru_r_count(const void *, const void *);
 356 static void     validate_ifnum(FILE *, u_int, int *, ifstats_row *);
 357 static void     another_ifstats_field(int *, ifstats_row *, FILE *);
 358 static void     collect_display_vdc(associd_t as, vdc *table,
 359                                     int decodestatus, FILE *fp);
 360
 361 /*
 362  * static globals
 363  */
 364 static u_int    mru_count;
 365 static u_int    mru_dupes;
 366 volatile int    mrulist_interrupted;
 367 static mru      mru_list;               /* listhead */
 368 static mru **   hash_table;
 369
 370 /*
 371  * qsort comparison function table for mrulist().  The first two
 372  * entries are NULL because they are handled without qsort().
 373  */
 374 static const qsort_cmp mru_qcmp_table[MRUSORT_MAX] = {
 375         NULL,                   /* MRUSORT_DEF unused */
 376         NULL,                   /* MRUSORT_R_DEF unused */
 377         &qcmp_mru_avgint,       /* MRUSORT_AVGINT */
 378         &qcmp_mru_r_avgint,     /* MRUSORT_R_AVGINT */
 379         &qcmp_mru_addr,         /* MRUSORT_ADDR */
 380         &qcmp_mru_r_addr,       /* MRUSORT_R_ADDR */
 381         &qcmp_mru_count,        /* MRUSORT_COUNT */
 382         &qcmp_mru_r_count,      /* MRUSORT_R_COUNT */
 383 };
 384
 385 /*
 386  * checkassocid - return the association ID, checking to see if it is valid
 387  */
 388 static associd_t
 389 checkassocid(
 390         u_int32 value
 391         )
 392 {
 393         associd_t       associd;
 394         u_long          ulvalue;
 395
 396         associd = (associd_t)value;
 397         if (0 == associd || value != associd) {
 398                 ulvalue = value;
 399                 fprintf(stderr,
 400                         "***Invalid association ID %lu specified\n",
 401                         ulvalue);
 402                 return 0;
 403         }
 404
 405         return associd;
 406 }
 407
 408
 409 /*
 410  * findlistvar - Look for the named variable in a varlist.  If found,
 411  *               return a pointer to it.  Otherwise, if the list has
 412  *               slots available, return the pointer to the first free
 413  *               slot, or NULL if it's full.
 414  */
 415 static struct varlist *
 416 findlistvar(
 417         struct varlist *list,
 418         char *name
 419         )
 420 {
 421         struct varlist *vl;
 422
 423         for (vl = list; vl < list + MAXLIST && vl->name != NULL; vl++)
 424                 if (!strcmp(name, vl->name))
 425                         return vl;
 426         if (vl < list + MAXLIST)
 427                 return vl;
 428
 429         return NULL;
 430 }
 431
 432
 433 /*
 434  * doaddvlist - add variable(s) to the variable list
 435  */
 436 static void
 437 doaddvlist(
 438         struct varlist *vlist,
 439         const char *vars
 440         )
 441 {
 442         struct varlist *vl;
 443         size_t len;
 444         char *name;
 445         char *value;
 446
 447         len = strlen(vars);
 448         while (nextvar(&len, &vars, &name, &value)) {
 449                 vl = findlistvar(vlist, name);
 450                 if (NULL == vl) {
 451                         fprintf(stderr, "Variable list full\n");
 452                         return;
 453                 }
 454
 455                 if (NULL == vl->name) {
 456                         vl->name = estrdup(name);
 457                 } else if (vl->value != NULL) {
 458                         free(vl->value);
 459                         vl->value = NULL;
 460                 }
 461
 462                 if (value != NULL)
 463                         vl->value = estrdup(value);
 464         }
 465 }
 466
 467
 468 /*
 469  * dormvlist - remove variable(s) from the variable list
 470  */
 471 static void
 472 dormvlist(
 473         struct varlist *vlist,
 474         const char *vars
 475         )
 476 {
 477         struct varlist *vl;
 478         size_t len;
 479         char *name;
 480         char *value;
 481
 482         len = strlen(vars);
 483         while (nextvar(&len, &vars, &name, &value)) {
 484                 vl = findlistvar(vlist, name);
 485                 if (vl == 0 || vl->name == 0) {
 486                         (void) fprintf(stderr, "Variable `%s' not found\n",
 487                                        name);
 488                 } else {
 489                         free((void *)(intptr_t)vl->name);
 490                         if (vl->value != 0)
 491                             free(vl->value);
 492                         for ( ; (vl+1) < (g_varlist + MAXLIST)
 493                                       && (vl+1)->name != 0; vl++) {
 494                                 vl->name = (vl+1)->name;
 495                                 vl->value = (vl+1)->value;
 496                         }
 497                         vl->name = vl->value = 0;
 498                 }
 499         }
 500 }
 501
 502
 503 /*
 504  * doclearvlist - clear a variable list
 505  */
 506 static void
 507 doclearvlist(
 508         struct varlist *vlist
 509         )
 510 {
 511         register struct varlist *vl;
 512
 513         for (vl = vlist; vl < vlist + MAXLIST && vl->name != 0; vl++) {
 514                 free((void *)(intptr_t)vl->name);
 515                 vl->name = 0;
 516                 if (vl->value != 0) {
 517                         free(vl->value);
 518                         vl->value = 0;
 519                 }
 520         }
 521 }
 522
 523
 524 /*
 525  * makequerydata - form a data buffer to be included with a query
 526  */
 527 static void
 528 makequerydata(
 529         struct varlist *vlist,
 530         size_t *datalen,
 531         char *data
 532         )
 533 {
 534         register struct varlist *vl;
 535         register char *cp, *cpend;
 536         register size_t namelen, valuelen;
 537         register size_t totallen;
 538
 539         cp = data;
 540         cpend = data + *datalen;
 541
 542         for (vl = vlist; vl < vlist + MAXLIST && vl->name != 0; vl++) {
 543                 namelen = strlen(vl->name);
 544                 if (vl->value == 0)
 545                         valuelen = 0;
 546                 else
 547                         valuelen = strlen(vl->value);
 548                 totallen = namelen + valuelen + (valuelen != 0) + (cp != data);
 549                 if (cp + totallen > cpend) {
 550                     fprintf(stderr,
 551                             "***Ignoring variables starting with `%s'\n",
 552                             vl->name);
 553                     break;
 554                 }
 555
 556                 if (cp != data)
 557                         *cp++ = ',';
 558                 memcpy(cp, vl->name, (size_t)namelen);
 559                 cp += namelen;
 560                 if (valuelen != 0) {
 561                         *cp++ = '=';
 562                         memcpy(cp, vl->value, (size_t)valuelen);
 563                         cp += valuelen;
 564                 }
 565         }
 566         *datalen = (size_t)(cp - data);
 567 }
 568
 569
 570 /*
 571  * doquerylist - send a message including variables in a list
 572  */
 573 static int
 574 doquerylist(
 575         struct varlist *vlist,
 576         int op,
 577         associd_t associd,
 578         int auth,
 579         u_short *rstatus,
 580         size_t *dsize,
 581         const char **datap
 582         )
 583 {
 584         char data[CTL_MAX_DATA_LEN];
 585         size_t datalen;
 586
 587         datalen = sizeof(data);
 588         makequerydata(vlist, &datalen, data);
 589
 590         return doquery(op, associd, auth, datalen, data, rstatus, dsize,
 591                        datap);
 592 }
 593
 594
 595 /*
 596  * doprintvlist - print the variables on a list
 597  */
 598 static void
 599 doprintvlist(
 600         struct varlist *vlist,
 601         FILE *fp
 602         )
 603 {
 604         size_t n;
 605
 606         if (NULL == vlist->name) {
 607                 fprintf(fp, "No variables on list\n");
 608                 return;
 609         }
 610         for (n = 0; n < MAXLIST && vlist[n].name != NULL; n++) {
 611                 if (NULL == vlist[n].value)
 612                         fprintf(fp, "%s\n", vlist[n].name);
 613                 else
 614                         fprintf(fp, "%s=%s\n", vlist[n].name,
 615                                 vlist[n].value);
 616         }
 617 }
 618
 619 /*
 620  * addvars - add variables to the variable list
 621  */
 622 /*ARGSUSED*/
 623 static void
 624 addvars(
 625         struct parse *pcmd,
 626         FILE *fp
 627         )
 628 {
 629         doaddvlist(g_varlist, pcmd->argval[0].string);
 630 }
 631
 632
 633 /*
 634  * rmvars - remove variables from the variable list
 635  */
 636 /*ARGSUSED*/
 637 static void
 638 rmvars(
 639         struct parse *pcmd,
 640         FILE *fp
 641         )
 642 {
 643         dormvlist(g_varlist, pcmd->argval[0].string);
 644 }
 645
 646
 647 /*
 648  * clearvars - clear the variable list
 649  */
 650 /*ARGSUSED*/
 651 static void
 652 clearvars(
 653         struct parse *pcmd,
 654         FILE *fp
 655         )
 656 {
 657         doclearvlist(g_varlist);
 658 }
 659
 660
 661 /*
 662  * showvars - show variables on the variable list
 663  */
 664 /*ARGSUSED*/
 665 static void
 666 showvars(
 667         struct parse *pcmd,
 668         FILE *fp
 669         )
 670 {
 671         doprintvlist(g_varlist, fp);
 672 }
 673
 674
 675 /*
 676  * dolist - send a request with the given list of variables
 677  */
 678 static int
 679 dolist(
 680         struct varlist *vlist,
 681         associd_t associd,
 682         int op,
 683         int type,
 684         FILE *fp
 685         )
 686 {
 687         const char *datap;
 688         int res;
 689         size_t dsize;
 690         u_short rstatus;
 691         int quiet;
 692
 693         /*
 694          * if we're asking for specific variables don't include the
 695          * status header line in the output.
 696          */
 697         if (old_rv)
 698                 quiet = 0;
 699         else
 700                 quiet = (vlist->name != NULL);
 701
 702         res = doquerylist(vlist, op, associd, 0, &rstatus, &dsize, &datap);
 703
 704         if (res != 0)
 705                 return 0;
 706
 707         if (numhosts > 1)
 708                 fprintf(fp, "server=%s ", currenthost);
 709         if (dsize == 0) {
 710                 if (associd == 0)
 711                         fprintf(fp, "No system%s variables returned\n",
 712                                 (type == TYPE_CLOCK) ? " clock" : "");
 713                 else
 714                         fprintf(fp,
 715                                 "No information returned for%s association %u\n",
 716                                 (type == TYPE_CLOCK) ? " clock" : "",
 717                                 associd);
 718                 return 1;
 719         }
 720
 721         if (!quiet)
 722                 fprintf(fp, "associd=%u ", associd);
 723         printvars(dsize, datap, (int)rstatus, type, quiet, fp);
 724         return 1;
 725 }
 726
 727
 728 /*
 729  * readlist - send a read variables request with the variables on the list
 730  */
 731 static void
 732 readlist(
 733         struct parse *pcmd,
 734         FILE *fp
 735         )
 736 {
 737         associd_t       associd;
 738         int             type;
 739
 740         if (pcmd->nargs == 0) {
 741                 associd = 0;
 742         } else {
 743           /* HMS: I think we want the u_int32 target here, not the u_long */
 744                 if (pcmd->argval[0].uval == 0)
 745                         associd = 0;
 746                 else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
 747                         return;
 748         }
 749
 750         type = (0 == associd)
 751                    ? TYPE_SYS
 752                    : TYPE_PEER;
 753         dolist(g_varlist, associd, CTL_OP_READVAR, type, fp);
 754 }
 755
 756
 757 /*
 758  * writelist - send a write variables request with the variables on the list
 759  */
 760 static void
 761 writelist(
 762         struct parse *pcmd,
 763         FILE *fp
 764         )
 765 {
 766         const char *datap;
 767         int res;
 768         associd_t associd;
 769         size_t dsize;
 770         u_short rstatus;
 771
 772         if (pcmd->nargs == 0) {
 773                 associd = 0;
 774         } else {
 775                 /* HMS: Do we really want uval here? */
 776                 if (pcmd->argval[0].uval == 0)
 777                         associd = 0;
 778                 else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
 779                         return;
 780         }
 781
 782         res = doquerylist(g_varlist, CTL_OP_WRITEVAR, associd, 1, &rstatus,
 783                           &dsize, &datap);
 784
 785         if (res != 0)
 786                 return;
 787
 788         if (numhosts > 1)
 789                 (void) fprintf(fp, "server=%s ", currenthost);
 790         if (dsize == 0)
 791                 (void) fprintf(fp, "done! (no data returned)\n");
 792         else {
 793                 (void) fprintf(fp,"associd=%u ", associd);
 794                 printvars(dsize, datap, (int)rstatus,
 795                           (associd != 0) ? TYPE_PEER : TYPE_SYS, 0, fp);
 796         }
 797         return;
 798 }
 799
 800
 801 /*
 802  * readvar - send a read variables request with the specified variables
 803  */
 804 static void
 805 readvar(
 806         struct parse *pcmd,
 807         FILE *fp
 808         )
 809 {
 810         associd_t       associd;
 811         size_t          tmpcount;
 812         size_t          u;
 813         int             type;
 814         struct varlist  tmplist[MAXLIST];
 815
 816
 817         /* HMS: uval? */
 818         if (pcmd->nargs == 0 || pcmd->argval[0].uval == 0)
 819                 associd = 0;
 820         else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
 821                 return;
 822
 823         ZERO(tmplist);
 824         if (pcmd->nargs > 1) {
 825                 tmpcount = pcmd->nargs - 1;
 826                 for (u = 0; u < tmpcount; u++)
 827                         doaddvlist(tmplist, pcmd->argval[1 + u].string);
 828         }
 829
 830         type = (0 == associd)
 831                    ? TYPE_SYS
 832                    : TYPE_PEER;
 833         dolist(tmplist, associd, CTL_OP_READVAR, type, fp);
 834
 835         doclearvlist(tmplist);
 836 }
 837
 838
 839 /*
 840  * writevar - send a write variables request with the specified variables
 841  */
 842 static void
 843 writevar(
 844         struct parse *pcmd,
 845         FILE *fp
 846         )
 847 {
 848         const char *datap;
 849         int res;
 850         associd_t associd;
 851         int type;
 852         size_t dsize;
 853         u_short rstatus;
 854         struct varlist tmplist[MAXLIST];
 855
 856         /* HMS: uval? */
 857         if (pcmd->argval[0].uval == 0)
 858                 associd = 0;
 859         else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
 860                 return;
 861
 862         ZERO(tmplist);
 863         doaddvlist(tmplist, pcmd->argval[1].string);
 864
 865         res = doquerylist(tmplist, CTL_OP_WRITEVAR, associd, 1, &rstatus,
 866                           &dsize, &datap);
 867
 868         doclearvlist(tmplist);
 869
 870         if (res != 0)
 871                 return;
 872
 873         if (numhosts > 1)
 874                 fprintf(fp, "server=%s ", currenthost);
 875         if (dsize == 0)
 876                 fprintf(fp, "done! (no data returned)\n");
 877         else {
 878                 fprintf(fp,"associd=%u ", associd);
 879                 type = (0 == associd)
 880                            ? TYPE_SYS
 881                            : TYPE_PEER;
 882                 printvars(dsize, datap, (int)rstatus, type, 0, fp);
 883         }
 884         return;
 885 }
 886
 887
 888 /*
 889  * clocklist - send a clock variables request with the variables on the list
 890  */
 891 static void
 892 clocklist(
 893         struct parse *pcmd,
 894         FILE *fp
 895         )
 896 {
 897         associd_t associd;
 898
 899         /* HMS: uval? */
 900         if (pcmd->nargs == 0) {
 901                 associd = 0;
 902         } else {
 903                 if (pcmd->argval[0].uval == 0)
 904                         associd = 0;
 905                 else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
 906                         return;
 907         }
 908
 909         dolist(g_varlist, associd, CTL_OP_READCLOCK, TYPE_CLOCK, fp);
 910 }
 911
 912
 913 /*
 914  * clockvar - send a clock variables request with the specified variables
 915  */
 916 static void
 917 clockvar(
 918         struct parse *pcmd,
 919         FILE *fp
 920         )
 921 {
 922         associd_t associd;
 923         struct varlist tmplist[MAXLIST];
 924
 925         /* HMS: uval? */
 926         if (pcmd->nargs == 0 || pcmd->argval[0].uval == 0)
 927                 associd = 0;
 928         else if ((associd = checkassocid(pcmd->argval[0].uval)) == 0)
 929                 return;
 930
 931         ZERO(tmplist);
 932         if (pcmd->nargs >= 2)
 933                 doaddvlist(tmplist, pcmd->argval[1].string);
 934
 935         dolist(tmplist, associd, CTL_OP_READCLOCK, TYPE_CLOCK, fp);
 936
 937         doclearvlist(tmplist);
 938 }
 939
 940
 941 /*
 942  * findassidrange - verify a range of association ID's
 943  */
 944 static int
 945 findassidrange(
 946         u_int32 assid1,
 947         u_int32 assid2,
 948         int *   from,
 949         int *   to,
 950         FILE *  fp
 951         )
 952 {
 953         associd_t       assids[2];
 954         int             ind[COUNTOF(assids)];
 955         u_int           i;
 956         size_t          a;
 957
 958
 959         if (0 == numassoc)
 960                 dogetassoc(fp);
 961
 962         assids[0] = checkassocid(assid1);
 963         if (0 == assids[0])
 964                 return 0;
 965         assids[1] = checkassocid(assid2);
 966         if (0 == assids[1])
 967                 return 0;
 968
 969         for (a = 0; a < COUNTOF(assids); a++) {
 970                 ind[a] = -1;
 971                 for (i = 0; i < numassoc; i++)
 972                         if (assoc_cache[i].assid == assids[a])
 973                                 ind[a] = i;
 974         }
 975         for (a = 0; a < COUNTOF(assids); a++)
 976                 if (-1 == ind[a]) {
 977                         fprintf(stderr,
 978                                 "***Association ID %u not found in list\n",
 979                                 assids[a]);
 980                         return 0;
 981                 }
 982
 983         if (ind[0] < ind[1]) {
 984                 *from = ind[0];
 985                 *to = ind[1];
 986         } else {
 987                 *to = ind[0];
 988                 *from = ind[1];
 989         }
 990         return 1;
 991 }
 992
 993
 994
 995 /*
 996  * mreadlist - send a read variables request for multiple associations
 997  */
 998 static void
 999 mreadlist(
1000         struct parse *pcmd,
1001         FILE *fp
1002         )
1003 {
1004         int i;
1005         int from;
1006         int to;
1007
1008         if (!findassidrange(pcmd->argval[0].uval, pcmd->argval[1].uval,
1009                             &from, &to, fp))
1010                 return;
1011
1012         for (i = from; i <= to; i++) {
1013                 if (i != from)
1014                         fprintf(fp, "\n");
1015                 if (!dolist(g_varlist, assoc_cache[i].assid,
1016                             CTL_OP_READVAR, TYPE_PEER, fp))
1017                         return;
1018         }
1019         return;
1020 }
1021
1022
1023 /*
1024  * mreadvar - send a read variables request for multiple associations
1025  */
1026 static void
1027 mreadvar(
1028         struct parse *pcmd,
1029         FILE *fp
1030         )
1031 {
1032         int i;
1033         int from;
1034         int to;
1035         struct varlist tmplist[MAXLIST];
1036         struct varlist *pvars;
1037
1038         if (!findassidrange(pcmd->argval[0].uval, pcmd->argval[1].uval,
1039                                 &from, &to, fp))
1040                 return;
1041
1042         ZERO(tmplist);
1043         if (pcmd->nargs >= 3) {
1044                 doaddvlist(tmplist, pcmd->argval[2].string);
1045                 pvars = tmplist;
1046         } else {
1047                 pvars = g_varlist;
1048         }
1049
1050         for (i = from; i <= to; i++) {
1051                 if (!dolist(pvars, assoc_cache[i].assid, CTL_OP_READVAR,
1052                             TYPE_PEER, fp))
1053                         break;
1054         }
1055
1056         if (pvars == tmplist)
1057                 doclearvlist(tmplist);
1058
1059         return;
1060 }
1061
1062
1063 /*
1064  * dogetassoc - query the host for its list of associations
1065  */
1066 int
1067 dogetassoc(
1068         FILE *fp
1069         )
1070 {
1071         const char *datap;
1072         const u_short *pus;
1073         int res;
1074         size_t dsize;
1075         u_short rstatus;
1076
1077         res = doquery(CTL_OP_READSTAT, 0, 0, 0, (char *)0, &rstatus,
1078                           &dsize, &datap);
1079
1080         if (res != 0)
1081                 return 0;
1082
1083         if (dsize == 0) {
1084                 if (numhosts > 1)
1085                         fprintf(fp, "server=%s ", currenthost);
1086                 fprintf(fp, "No association ID's returned\n");
1087                 return 0;
1088         }
1089
1090         if (dsize & 0x3) {
1091                 if (numhosts > 1)
1092                         fprintf(stderr, "server=%s ", currenthost);
1093                 fprintf(stderr,
1094                         "***Server returned %zu octets, should be multiple of 4\n",
1095                         dsize);
1096                 return 0;
1097         }
1098
1099         numassoc = 0;
1100
1101         while (dsize > 0) {
1102                 if (numassoc >= assoc_cache_slots) {
1103                         grow_assoc_cache();
1104                 }
1105                 pus = (const void *)datap;
1106                 assoc_cache[numassoc].assid = ntohs(*pus);
1107                 datap += sizeof(*pus);
1108                 pus = (const void *)datap;
1109                 assoc_cache[numassoc].status = ntohs(*pus);
1110                 datap += sizeof(*pus);
1111                 dsize -= 2 * sizeof(*pus);
1112                 if (debug) {
1113                         fprintf(stderr, "[%u] ",
1114                                 assoc_cache[numassoc].assid);
1115                 }
1116                 numassoc++;
1117         }
1118         if (debug) {
1119                 fprintf(stderr, "\n%d associations total\n", numassoc);
1120         }
1121         sortassoc();
1122         return 1;
1123 }
1124
1125
1126 /*
1127  * printassoc - print the current list of associations
1128  */
1129 static void
1130 printassoc(
1131         int showall,
1132         FILE *fp
1133         )
1134 {
1135         register char *bp;
1136         u_int i;
1137         u_char statval;
1138         int event;
1139         u_long event_count;
1140         const char *conf;
1141         const char *reach;
1142         const char *auth;
1143         const char *condition = "";
1144         const char *last_event;
1145         char buf[128];
1146
1147         if (numassoc == 0) {
1148                 (void) fprintf(fp, "No association ID's in list\n");
1149                 return;
1150         }
1151
1152         /*
1153          * Output a header
1154          */
1155         (void) fprintf(fp,
1156                            "\nind assid status  conf reach auth condition  last_event cnt\n");
1157         (void) fprintf(fp,
1158                            "===========================================================\n");
1159         for (i = 0; i < numassoc; i++) {
1160                 statval = (u_char) CTL_PEER_STATVAL(assoc_cache[i].status);
1161                 if (!showall && !(statval & (CTL_PST_CONFIG|CTL_PST_REACH)))
1162                         continue;
1163                 event = CTL_PEER_EVENT(assoc_cache[i].status);
1164                 event_count = CTL_PEER_NEVNT(assoc_cache[i].status);
1165                 if (statval & CTL_PST_CONFIG)
1166                         conf = "yes";
1167                 else
1168                         conf = "no";
1169                 if (statval & CTL_PST_BCAST) {
1170                         reach = "none";
1171                         if (statval & CTL_PST_AUTHENABLE)
1172                                 auth = "yes";
1173                         else
1174                                 auth = "none";
1175                 } else {
1176                         if (statval & CTL_PST_REACH)
1177                                 reach = "yes";
1178                         else
1179                                 reach = "no";
1180                         if (statval & CTL_PST_AUTHENABLE) {
1181                                 if (statval & CTL_PST_AUTHENTIC)
1182                                         auth = "ok ";
1183                                 else
1184                                         auth = "bad";
1185                         } else {
1186                                 auth = "none";
1187                         }
1188                 }
1189                 if (pktversion > NTP_OLDVERSION) {
1190                         switch (statval & 0x7) {
1191
1192                         case CTL_PST_SEL_REJECT:
1193                                 condition = "reject";
1194                                 break;
1195
1196                         case CTL_PST_SEL_SANE:
1197                                 condition = "falsetick";
1198                                 break;
1199
1200                         case CTL_PST_SEL_CORRECT:
1201                                 condition = "excess";
1202                                 break;
1203
1204                         case CTL_PST_SEL_SELCAND:
1205                                 condition = "outlier";
1206                                 break;
1207
1208                         case CTL_PST_SEL_SYNCCAND:
1209                                 condition = "candidate";
1210                                 break;
1211
1212                         case CTL_PST_SEL_EXCESS:
1213                                 condition = "backup";
1214                                 break;
1215
1216                         case CTL_PST_SEL_SYSPEER:
1217                                 condition = "sys.peer";
1218                                 break;
1219
1220                         case CTL_PST_SEL_PPS:
1221                                 condition = "pps.peer";
1222                                 break;
1223                         }
1224                 } else {
1225                         switch (statval & 0x3) {
1226
1227                         case OLD_CTL_PST_SEL_REJECT:
1228                                 if (!(statval & OLD_CTL_PST_SANE))
1229                                         condition = "insane";
1230                                 else if (!(statval & OLD_CTL_PST_DISP))
1231                                         condition = "hi_disp";
1232                                 else
1233                                         condition = "";
1234                                 break;
1235
1236                         case OLD_CTL_PST_SEL_SELCAND:
1237                                 condition = "sel_cand";
1238                                 break;
1239
1240                         case OLD_CTL_PST_SEL_SYNCCAND:
1241                                 condition = "sync_cand";
1242                                 break;
1243
1244                         case OLD_CTL_PST_SEL_SYSPEER:
1245                                 condition = "sys_peer";
1246                                 break;
1247                         }
1248                 }
1249                 switch (PEER_EVENT|event) {
1250
1251                 case PEVNT_MOBIL:
1252                         last_event = "mobilize";
1253                         break;
1254
1255                 case PEVNT_DEMOBIL:
1256                         last_event = "demobilize";
1257                         break;
1258
1259                 case PEVNT_REACH:
1260                         last_event = "reachable";
1261                         break;
1262
1263                 case PEVNT_UNREACH:
1264                         last_event = "unreachable";
1265                         break;
1266
1267                 case PEVNT_RESTART:
1268                         last_event = "restart";
1269                         break;
1270
1271                 case PEVNT_REPLY:
1272                         last_event = "no_reply";
1273                         break;
1274
1275                 case PEVNT_RATE:
1276                         last_event = "rate_exceeded";
1277                         break;
1278
1279                 case PEVNT_DENY:
1280                         last_event = "access_denied";
1281                         break;
1282
1283                 case PEVNT_ARMED:
1284                         last_event = "leap_armed";
1285                         break;
1286
1287                 case PEVNT_NEWPEER:
1288                         last_event = "sys_peer";
1289                         break;
1290
1291                 case PEVNT_CLOCK:
1292                         last_event = "clock_alarm";
1293                         break;
1294
1295                 default:
1296                         last_event = "";
1297                         break;
1298                 }
1299                 snprintf(buf, sizeof(buf),
1300                          "%3d %5u  %04x   %3.3s  %4s  %4.4s %9.9s %11s %2lu",
1301                          i + 1, assoc_cache[i].assid,
1302                          assoc_cache[i].status, conf, reach, auth,
1303                          condition, last_event, event_count);
1304                 bp = buf + strlen(buf);
1305                 while (bp > buf && ' ' == bp[-1])
1306                         --bp;
1307                 bp[0] = '\0';
1308                 fprintf(fp, "%s\n", buf);
1309         }
1310 }
1311
1312
1313 /*
1314  * associations - get, record and print a list of associations
1315  */
1316 /*ARGSUSED*/
1317 static void
1318 associations(
1319         struct parse *pcmd,
1320         FILE *fp
1321         )
1322 {
1323         if (dogetassoc(fp))
1324                 printassoc(0, fp);
1325 }
1326
1327
1328 /*
1329  * lassociations - get, record and print a long list of associations
1330  */
1331 /*ARGSUSED*/
1332 static void
1333 lassociations(
1334         struct parse *pcmd,
1335         FILE *fp
1336         )
1337 {
1338         if (dogetassoc(fp))
1339                 printassoc(1, fp);
1340 }
1341
1342
1343 /*
1344  * passociations - print the association list
1345  */
1346 /*ARGSUSED*/
1347 static void
1348 passociations(
1349         struct parse *pcmd,
1350         FILE *fp
1351         )
1352 {
1353         printassoc(0, fp);
1354 }
1355
1356
1357 /*
1358  * lpassociations - print the long association list
1359  */
1360 /*ARGSUSED*/
1361 static void
1362 lpassociations(
1363         struct parse *pcmd,
1364         FILE *fp
1365         )
1366 {
1367         printassoc(1, fp);
1368 }
1369
1370
1371 /*
1372  *  saveconfig - dump ntp server configuration to server file
1373  */
1374 static void
1375 saveconfig(
1376         struct parse *pcmd,
1377         FILE *fp
1378         )
1379 {
1380         const char *datap;
1381         int res;
1382         size_t dsize;
1383         u_short rstatus;
1384
1385         if (0 == pcmd->nargs)
1386                 return;
1387
1388         res = doquery(CTL_OP_SAVECONFIG, 0, 1,
1389                       strlen(pcmd->argval[0].string),
1390                       pcmd->argval[0].string, &rstatus, &dsize,
1391                       &datap);
1392
1393         if (res != 0)
1394                 return;
1395
1396         if (0 == dsize)
1397                 fprintf(fp, "(no response message, curiously)");
1398         else
1399                 fprintf(fp, "%.*s", (int)dsize, datap); /* cast is wobbly */
1400 }
1401
1402
1403 #ifdef  UNUSED
1404 /*
1405  * radiostatus - print the radio status returned by the server
1406  */
1407 /*ARGSUSED*/
1408 static void
1409 radiostatus(
1410         struct parse *pcmd,
1411         FILE *fp
1412         )
1413 {
1414         char *datap;
1415         int res;
1416         int dsize;
1417         u_short rstatus;
1418
1419         res = doquery(CTL_OP_READCLOCK, 0, 0, 0, (char *)0, &rstatus,
1420                           &dsize, &datap);
1421
1422         if (res != 0)
1423                 return;
1424
1425         if (numhosts > 1)
1426                 (void) fprintf(fp, "server=%s ", currenthost);
1427         if (dsize == 0) {
1428                 (void) fprintf(fp, "No radio status string returned\n");
1429                 return;
1430         }
1431
1432         asciize(dsize, datap, fp);
1433 }
1434 #endif  /* UNUSED */
1435
1436 /*
1437  * when - print how long its been since his last packet arrived
1438  */
1439 static long
1440 when(
1441         l_fp *ts,
1442         l_fp *rec,
1443         l_fp *reftime
1444         )
1445 {
1446         l_fp *lasttime;
1447
1448         if (rec->l_ui != 0)
1449                 lasttime = rec;
1450         else if (reftime->l_ui != 0)
1451                 lasttime = reftime;
1452         else
1453                 return 0;
1454
1455         return (ts->l_ui - lasttime->l_ui);
1456 }
1457
1458
1459 /*
1460  * Pretty-print an interval into the given buffer, in a human-friendly format.
1461  */
1462 static char *
1463 prettyinterval(
1464         char *buf,
1465         size_t cb,
1466         long diff
1467         )
1468 {
1469         if (diff <= 0) {
1470                 buf[0] = '-';
1471                 buf[1] = 0;
1472                 return buf;
1473         }
1474
1475         if (diff <= 2048) {
1476                 snprintf(buf, cb, "%ld", diff);
1477                 return buf;
1478         }
1479
1480         diff = (diff + 29) / 60;
1481         if (diff <= 300) {
1482                 snprintf(buf, cb, "%ldm", diff);
1483                 return buf;
1484         }
1485
1486         diff = (diff + 29) / 60;
1487         if (diff <= 96) {
1488                 snprintf(buf, cb, "%ldh", diff);
1489                 return buf;
1490         }
1491
1492         diff = (diff + 11) / 24;
1493         snprintf(buf, cb, "%ldd", diff);
1494         return buf;
1495 }
1496
1497 static char
1498 decodeaddrtype(
1499         sockaddr_u *sock
1500         )
1501 {
1502         char ch = '-';
1503         u_int32 dummy;
1504
1505         switch(AF(sock)) {
1506         case AF_INET:
1507                 dummy = SRCADR(sock);
1508                 ch = (char)(((dummy&0xf0000000)==0xe0000000) ? 'm' :
1509                         ((dummy&0x000000ff)==0x000000ff) ? 'b' :
1510                         ((dummy&0xffffffff)==0x7f000001) ? 'l' :
1511                         ((dummy&0xffffffe0)==0x00000000) ? '-' :
1512                         'u');
1513                 break;
1514         case AF_INET6:
1515                 if (IN6_IS_ADDR_MULTICAST(PSOCK_ADDR6(sock)))
1516                         ch = 'm';
1517                 else
1518                         ch = 'u';
1519                 break;
1520         default:
1521                 ch = '-';
1522                 break;
1523         }
1524         return ch;
1525 }
1526
1527 /*
1528  * A list of variables required by the peers command
1529  */
1530 struct varlist opeervarlist[] = {
1531         { "srcadr",     0 },    /* 0 */
1532         { "dstadr",     0 },    /* 1 */
1533         { "stratum",    0 },    /* 2 */
1534         { "hpoll",      0 },    /* 3 */
1535         { "ppoll",      0 },    /* 4 */
1536         { "reach",      0 },    /* 5 */
1537         { "delay",      0 },    /* 6 */
1538         { "offset",     0 },    /* 7 */
1539         { "jitter",     0 },    /* 8 */
1540         { "dispersion", 0 },    /* 9 */
1541         { "rec",        0 },    /* 10 */
1542         { "reftime",    0 },    /* 11 */
1543         { "srcport",    0 },    /* 12 */
1544         { "hmode",      0 },    /* 13 */
1545         { 0,            0 }
1546 };
1547
1548 struct varlist peervarlist[] = {
1549         { "srcadr",     0 },    /* 0 */
1550         { "refid",      0 },    /* 1 */
1551         { "stratum",    0 },    /* 2 */
1552         { "hpoll",      0 },    /* 3 */
1553         { "ppoll",      0 },    /* 4 */
1554         { "reach",      0 },    /* 5 */
1555         { "delay",      0 },    /* 6 */
1556         { "offset",     0 },    /* 7 */
1557         { "jitter",     0 },    /* 8 */
1558         { "dispersion", 0 },    /* 9 */
1559         { "rec",        0 },    /* 10 */
1560         { "reftime",    0 },    /* 11 */
1561         { "srcport",    0 },    /* 12 */
1562         { "hmode",      0 },    /* 13 */
1563         { "srchost",    0 },    /* 14 */
1564         { 0,            0 }
1565 };
1566
1567 struct varlist apeervarlist[] = {
1568         { "srcadr",     0 },    /* 0 */
1569         { "refid",      0 },    /* 1 */
1570         { "assid",      0 },    /* 2 */
1571         { "stratum",    0 },    /* 3 */
1572         { "hpoll",      0 },    /* 4 */
1573         { "ppoll",      0 },    /* 5 */
1574         { "reach",      0 },    /* 6 */
1575         { "delay",      0 },    /* 7 */
1576         { "offset",     0 },    /* 8 */
1577         { "jitter",     0 },    /* 9 */
1578         { "dispersion", 0 },    /* 10 */
1579         { "rec",        0 },    /* 11 */
1580         { "reftime",    0 },    /* 12 */
1581         { "srcport",    0 },    /* 13 */
1582         { "hmode",      0 },    /* 14 */
1583         { "srchost",    0 },    /* 15 */
1584         { 0,            0 }
1585 };
1586
1587
1588 /*
1589  * Decode an incoming data buffer and print a line in the peer list
1590  */
1591 static int
1592 doprintpeers(
1593         struct varlist *pvl,
1594         int associd,
1595         int rstatus,
1596         size_t datalen,
1597         const char *data,
1598         FILE *fp,
1599         int af
1600         )
1601 {
1602         char *name;
1603         char *value = NULL;
1604         int c;
1605         size_t len;
1606         int have_srchost;
1607         int have_dstadr;
1608         int have_da_rid;
1609         int have_jitter;
1610         sockaddr_u srcadr;
1611         sockaddr_u dstadr;
1612         sockaddr_u dum_store;
1613         sockaddr_u refidadr;
1614         long hmode = 0;
1615         u_long srcport = 0;
1616         u_int32 u32;
1617         const char *dstadr_refid = "0.0.0.0";
1618         const char *serverlocal;
1619         size_t drlen;
1620         u_long stratum = 0;
1621         long ppoll = 0;
1622         long hpoll = 0;
1623         u_long reach = 0;
1624         l_fp estoffset;
1625         l_fp estdelay;
1626         l_fp estjitter;
1627         l_fp estdisp;
1628         l_fp reftime;
1629         l_fp rec;
1630         l_fp ts;
1631         u_long poll_sec;
1632         char type = '?';
1633         char whenbuf[8], pollbuf[8];
1634         char clock_name[LENHOSTNAME];
1635
1636         get_systime(&ts);
1637
1638         have_srchost = FALSE;
1639         have_dstadr = FALSE;
1640         have_da_rid = FALSE;
1641         have_jitter = FALSE;
1642         ZERO_SOCK(&srcadr);
1643         ZERO_SOCK(&dstadr);
1644         clock_name[0] = '\0';
1645         ZERO(estoffset);
1646         ZERO(estdelay);
1647         ZERO(estjitter);
1648         ZERO(estdisp);
1649
1650         while (nextvar(&datalen, &data, &name, &value)) {
1651                 if (!strcmp("srcadr", name) ||
1652                     !strcmp("peeradr", name)) {
1653                         if (!decodenetnum(value, &srcadr))
1654                                 fprintf(stderr, "malformed %s=%s\n",
1655                                         name, value);
1656                 } else if (!strcmp("srchost", name)) {
1657                         if (pvl == peervarlist || pvl == apeervarlist) {
1658                                 len = strlen(value);
1659                                 if (2 < len &&
1660                                     (size_t)len < sizeof(clock_name)) {
1661                                         /* strip quotes */
1662                                         value++;
1663                                         len -= 2;
1664                                         memcpy(clock_name, value, len);
1665                                         clock_name[len] = '\0';
1666                                         have_srchost = TRUE;
1667                                 }
1668                         }
1669                 } else if (!strcmp("dstadr", name)) {
1670                         if (decodenetnum(value, &dum_store)) {
1671                                 type = decodeaddrtype(&dum_store);
1672                                 have_dstadr = TRUE;
1673                                 dstadr = dum_store;
1674                                 if (pvl == opeervarlist) {
1675                                         have_da_rid = TRUE;
1676                                         dstadr_refid = trunc_left(stoa(&dstadr), 15);
1677                                 }
1678                         }
1679                 } else if (!strcmp("hmode", name)) {
1680                         decodeint(value, &hmode);
1681                 } else if (!strcmp("refid", name)) {
1682                         if (   (pvl == peervarlist)
1683                             && (drefid == REFID_IPV4)) {
1684                                 have_da_rid = TRUE;
1685                                 drlen = strlen(value);
1686                                 if (0 == drlen) {
1687                                         dstadr_refid = "";
1688                                 } else if (drlen <= 4) {
1689                                         ZERO(u32);
1690                                         memcpy(&u32, value, drlen);
1691                                         dstadr_refid = refid_str(u32, 1);
1692                                 } else if (decodenetnum(value, &refidadr)) {
1693                                         if (SOCK_UNSPEC(&refidadr))
1694                                                 dstadr_refid = "0.0.0.0";
1695                                         else if (ISREFCLOCKADR(&refidadr))
1696                                                 dstadr_refid =
1697                                                     refnumtoa(&refidadr);
1698                                         else
1699                                                 dstadr_refid =
1700                                                     stoa(&refidadr);
1701                                 } else {
1702                                         have_da_rid = FALSE;
1703                                 }
1704                         } else if (   (pvl == apeervarlist)
1705                                    || (pvl == peervarlist)) {
1706                                 /* no need to check drefid == REFID_HASH */
1707                                 have_da_rid = TRUE;
1708                                 drlen = strlen(value);
1709                                 if (0 == drlen) {
1710                                         dstadr_refid = "";
1711                                 } else if (drlen <= 4) {
1712                                         ZERO(u32);
1713                                         memcpy(&u32, value, drlen);
1714                                         dstadr_refid = refid_str(u32, 1);
1715                                         //fprintf(stderr, "apeervarlist S1 refid: value=<%s>\n", value);
1716                                 } else if (decodenetnum(value, &refidadr)) {
1717                                         if (SOCK_UNSPEC(&refidadr))
1718                                                 dstadr_refid = "0.0.0.0";
1719                                         else if (ISREFCLOCKADR(&refidadr))
1720                                                 dstadr_refid =
1721                                                     refnumtoa(&refidadr);
1722                                         else {
1723                                                 char *buf = emalloc(10);
1724                                                 int i = ntohl(refidadr.sa4.sin_addr.s_addr);
1725
1726                                                 snprintf(buf, 10,
1727                                                         "%0x", i);
1728                                                 dstadr_refid = buf;
1729                                         //fprintf(stderr, "apeervarlist refid: value=<%x>\n", i);
1730                                         }
1731                                         //fprintf(stderr, "apeervarlist refid: value=<%s>\n", value);
1732                                 } else {
1733                                         have_da_rid = FALSE;
1734                                 }
1735                         }
1736                 } else if (!strcmp("stratum", name)) {
1737                         decodeuint(value, &stratum);
1738                 } else if (!strcmp("hpoll", name)) {
1739                         if (decodeint(value, &hpoll) && hpoll < 0)
1740                                 hpoll = NTP_MINPOLL;
1741                 } else if (!strcmp("ppoll", name)) {
1742                         if (decodeint(value, &ppoll) && ppoll < 0)
1743                                 ppoll = NTP_MINPOLL;
1744                 } else if (!strcmp("reach", name)) {
1745                         decodeuint(value, &reach);
1746                 } else if (!strcmp("delay", name)) {
1747                         decodetime(value, &estdelay);
1748                 } else if (!strcmp("offset", name)) {
1749                         decodetime(value, &estoffset);
1750                 } else if (!strcmp("jitter", name)) {
1751                         if ((pvl == peervarlist || pvl == apeervarlist)
1752                             && decodetime(value, &estjitter))
1753                                 have_jitter = 1;
1754                 } else if (!strcmp("rootdisp", name) ||
1755                            !strcmp("dispersion", name)) {
1756                         decodetime(value, &estdisp);
1757                 } else if (!strcmp("rec", name)) {
1758                         decodets(value, &rec);
1759                 } else if (!strcmp("srcport", name) ||
1760                            !strcmp("peerport", name)) {
1761                         decodeuint(value, &srcport);
1762                 } else if (!strcmp("reftime", name)) {
1763                         if (!decodets(value, &reftime))
1764                                 L_CLR(&reftime);
1765                 } else {
1766                         // fprintf(stderr, "UNRECOGNIZED name=%s ", name);
1767                 }
1768         }
1769
1770         /*
1771          * hmode gives the best guidance for the t column.  If the response
1772          * did not include hmode we'll use the old decodeaddrtype() result.
1773          */
1774         switch (hmode) {
1775
1776         case MODE_BCLIENT:
1777                 /* broadcastclient or multicastclient */
1778                 type = 'b';
1779                 break;
1780
1781         case MODE_BROADCAST:
1782                 /* broadcast or multicast server */
1783                 if (IS_MCAST(&srcadr))
1784                         type = 'M';
1785                 else
1786                         type = 'B';
1787                 break;
1788
1789         case MODE_CLIENT:
1790                 if (ISREFCLOCKADR(&srcadr))
1791                         type = 'l';     /* local refclock*/
1792                 else if (SOCK_UNSPEC(&srcadr))
1793                         type = 'p';     /* pool */
1794                 else if (IS_MCAST(&srcadr))
1795                         type = 'a';     /* manycastclient */
1796                 else
1797                         type = 'u';     /* unicast */
1798                 break;
1799
1800         case MODE_ACTIVE:
1801                 type = 's';             /* symmetric active */
1802                 break;                  /* configured */
1803
1804         case MODE_PASSIVE:
1805                 type = 'S';             /* symmetric passive */
1806                 break;                  /* ephemeral */
1807         }
1808
1809         /*
1810          * Got everything, format the line
1811          */
1812         poll_sec = 1 << min(ppoll, hpoll);
1813         if (pktversion > NTP_OLDVERSION)
1814                 c = flash3[CTL_PEER_STATVAL(rstatus) & 0x7];
1815         else
1816                 c = flash2[CTL_PEER_STATVAL(rstatus) & 0x3];
1817         if (numhosts > 1) {
1818                 if ((pvl == peervarlist || pvl == apeervarlist)
1819                     && have_dstadr) {
1820                         serverlocal = nntohost_col(&dstadr,
1821                             (size_t)min(LIB_BUFLENGTH - 1, maxhostlen),
1822                             TRUE);
1823                 } else {
1824                         if (currenthostisnum)
1825                                 serverlocal = trunc_left(currenthost,
1826                                                          maxhostlen);
1827                         else
1828                                 serverlocal = currenthost;
1829                 }
1830                 fprintf(fp, "%-*s ", (int)maxhostlen, serverlocal);
1831         }
1832         if (AF_UNSPEC == af || AF(&srcadr) == af) {
1833                 if (!have_srchost)
1834                         strlcpy(clock_name, nntohost(&srcadr),
1835                                 sizeof(clock_name));
1836                 if (wideremote && 15 < strlen(clock_name))
1837                         fprintf(fp, "%c%s\n                 ", c, clock_name);
1838                 else
1839                         fprintf(fp, "%c%-15.15s ", c, clock_name);
1840                 if (!have_da_rid) {
1841                         drlen = 0;
1842                 } else {
1843                         drlen = strlen(dstadr_refid);
1844                         makeascii(drlen, dstadr_refid, fp);
1845                 }
1846                 if (pvl == apeervarlist) {
1847                         while (drlen++ < 9)
1848                                 fputc(' ', fp);
1849                         fprintf(fp, "%-6d", associd);
1850                 } else {
1851                         while (drlen++ < 15)
1852                                 fputc(' ', fp);
1853                 }
1854                 fprintf(fp,
1855                         " %2ld %c %4.4s %4.4s  %3lo  %7.7s %8.7s %7.7s\n",
1856                         stratum, type,
1857                         prettyinterval(whenbuf, sizeof(whenbuf),
1858                                        when(&ts, &rec, &reftime)),
1859                         prettyinterval(pollbuf, sizeof(pollbuf),
1860                                        (int)poll_sec),
1861                         reach, lfptoms(&estdelay, 3),
1862                         lfptoms(&estoffset, 3),
1863                         (have_jitter)
1864                             ? lfptoms(&estjitter, 3)
1865                             : lfptoms(&estdisp, 3));
1866                 return (1);
1867         }
1868         else
1869                 return(1);
1870 }
1871
1872
1873 /*
1874  * dogetpeers - given an association ID, read and print the spreadsheet
1875  *              peer variables.
1876  */
1877 static int
1878 dogetpeers(
1879         struct varlist *pvl,
1880         associd_t associd,
1881         FILE *fp,
1882         int af
1883         )
1884 {
1885         const char *datap;
1886         int res;
1887         size_t dsize;
1888         u_short rstatus;
1889
1890 #ifdef notdef
1891         res = doquerylist(pvl, CTL_OP_READVAR, associd, 0, &rstatus,
1892                           &dsize, &datap);
1893 #else
1894         /*
1895          * Damn fuzzballs
1896          */
1897         res = doquery(CTL_OP_READVAR, associd, 0, 0, NULL, &rstatus,
1898                           &dsize, &datap);
1899 #endif
1900
1901         if (res != 0)
1902                 return 0;
1903
1904         if (dsize == 0) {
1905                 if (numhosts > 1)
1906                         fprintf(stderr, "server=%s ", currenthost);
1907                 fprintf(stderr,
1908                         "***No information returned for association %u\n",
1909                         associd);
1910                 return 0;
1911         }
1912
1913         return doprintpeers(pvl, associd, (int)rstatus, dsize, datap,
1914                             fp, af);
1915 }
1916
1917
1918 /*
1919  * peers - print a peer spreadsheet
1920  */
1921 static void
1922 dopeers(
1923         int showall,
1924         FILE *fp,
1925         int af
1926         )
1927 {
1928         u_int           u;
1929         char            fullname[LENHOSTNAME];
1930         sockaddr_u      netnum;
1931         const char *    name_or_num;
1932         size_t          sl;
1933
1934         if (!dogetassoc(fp))
1935                 return;
1936
1937         for (u = 0; u < numhosts; u++) {
1938                 if (getnetnum(chosts[u].name, &netnum, fullname, af)) {
1939                         name_or_num = nntohost(&netnum);
1940                         sl = strlen(name_or_num);
1941                         maxhostlen = max(maxhostlen, sl);
1942                 }
1943         }
1944         if (numhosts > 1)
1945                 fprintf(fp, "%-*.*s ", (int)maxhostlen, (int)maxhostlen,
1946                         "server (local)");
1947         fprintf(fp,
1948                 "     remote           refid      st t when poll reach   delay   offset  jitter\n");
1949         if (numhosts > 1)
1950                 for (u = 0; u <= maxhostlen; u++)
1951                         fprintf(fp, "=");
1952         fprintf(fp,
1953                 "==============================================================================\n");
1954
1955         for (u = 0; u < numassoc; u++) {
1956                 if (!showall &&
1957                     !(CTL_PEER_STATVAL(assoc_cache[u].status)
1958                       & (CTL_PST_CONFIG|CTL_PST_REACH))) {
1959                         if (debug)
1960                                 fprintf(stderr, "eliding [%d]\n",
1961                                         (int)assoc_cache[u].assid);
1962                         continue;
1963                 }
1964                 if (!dogetpeers(peervarlist, (int)assoc_cache[u].assid,
1965                                 fp, af))
1966                         return;
1967         }
1968         return;
1969 }
1970
1971
1972 /*
1973  * doapeers - print a peer spreadsheet with assocIDs
1974  */
1975 static void
1976 doapeers(
1977         int showall,
1978         FILE *fp,
1979         int af
1980         )
1981 {
1982         u_int           u;
1983         char            fullname[LENHOSTNAME];
1984         sockaddr_u      netnum;
1985         const char *    name_or_num;
1986         size_t          sl;
1987
1988         if (!dogetassoc(fp))
1989                 return;
1990
1991         for (u = 0; u < numhosts; u++) {
1992                 if (getnetnum(chosts[u].name, &netnum, fullname, af)) {
1993                         name_or_num = nntohost(&netnum);
1994                         sl = strlen(name_or_num);
1995                         maxhostlen = max(maxhostlen, sl);
1996                 }
1997         }
1998         if (numhosts > 1)
1999                 fprintf(fp, "%-*.*s ", (int)maxhostlen, (int)maxhostlen,
2000                         "server (local)");
2001         fprintf(fp,
2002                 "     remote       refid   assid  st t when poll reach   delay   offset  jitter\n");
2003         if (numhosts > 1)
2004                 for (u = 0; u <= maxhostlen; u++)
2005                         fprintf(fp, "=");
2006         fprintf(fp,
2007                 "==============================================================================\n");
2008
2009         for (u = 0; u < numassoc; u++) {
2010                 if (!showall &&
2011                     !(CTL_PEER_STATVAL(assoc_cache[u].status)
2012                       & (CTL_PST_CONFIG|CTL_PST_REACH))) {
2013                         if (debug)
2014                                 fprintf(stderr, "eliding [%d]\n",
2015                                         (int)assoc_cache[u].assid);
2016                         continue;
2017                 }
2018                 if (!dogetpeers(apeervarlist, (int)assoc_cache[u].assid,
2019                                 fp, af))
2020                         return;
2021         }
2022         return;
2023 }
2024
2025
2026 /*
2027  * peers - print a peer spreadsheet
2028  */
2029 /*ARGSUSED*/
2030 static void
2031 peers(
2032         struct parse *pcmd,
2033         FILE *fp
2034         )
2035 {
2036         if (drefid == REFID_HASH) {
2037                 apeers(pcmd, fp);
2038         } else {
2039                 int af = 0;
2040
2041                 if (pcmd->nargs == 1) {
2042                         if (pcmd->argval->ival == 6)
2043                                 af = AF_INET6;
2044                         else
2045                                 af = AF_INET;
2046                 }
2047                 dopeers(0, fp, af);
2048         }
2049 }
2050
2051
2052 /*
2053  * apeers - print a peer spreadsheet, with assocIDs
2054  */
2055 /*ARGSUSED*/
2056 static void
2057 apeers(
2058         struct parse *pcmd,
2059         FILE *fp
2060         )
2061 {
2062         int af = 0;
2063
2064         if (pcmd->nargs == 1) {
2065                 if (pcmd->argval->ival == 6)
2066                         af = AF_INET6;
2067                 else
2068                         af = AF_INET;
2069         }
2070         doapeers(0, fp, af);
2071 }
2072
2073
2074 /*
2075  * lpeers - print a peer spreadsheet including all fuzzball peers
2076  */
2077 /*ARGSUSED*/
2078 static void
2079 lpeers(
2080         struct parse *pcmd,
2081         FILE *fp
2082         )
2083 {
2084         int af = 0;
2085
2086         if (pcmd->nargs == 1) {
2087                 if (pcmd->argval->ival == 6)
2088                         af = AF_INET6;
2089                 else
2090                         af = AF_INET;
2091         }
2092         dopeers(1, fp, af);
2093 }
2094
2095
2096 /*
2097  * opeers - print a peer spreadsheet
2098  */
2099 static void
2100 doopeers(
2101         int showall,
2102         FILE *fp,
2103         int af
2104         )
2105 {
2106         u_int i;
2107         char fullname[LENHOSTNAME];
2108         sockaddr_u netnum;
2109
2110         if (!dogetassoc(fp))
2111                 return;
2112
2113         for (i = 0; i < numhosts; ++i) {
2114                 if (getnetnum(chosts[i].name, &netnum, fullname, af))
2115                         if (strlen(fullname) > maxhostlen)
2116                                 maxhostlen = strlen(fullname);
2117         }
2118         if (numhosts > 1)
2119                 fprintf(fp, "%-*.*s ", (int)maxhostlen, (int)maxhostlen,
2120                         "server");
2121         fprintf(fp,
2122             "     remote           local      st t when poll reach   delay   offset    disp\n");
2123         if (numhosts > 1)
2124                 for (i = 0; i <= maxhostlen; ++i)
2125                         fprintf(fp, "=");
2126         fprintf(fp,
2127             "==============================================================================\n");
2128
2129         for (i = 0; i < numassoc; i++) {
2130                 if (!showall &&
2131                     !(CTL_PEER_STATVAL(assoc_cache[i].status) &
2132                       (CTL_PST_CONFIG | CTL_PST_REACH)))
2133                         continue;
2134                 if (!dogetpeers(opeervarlist, assoc_cache[i].assid, fp, af))
2135                         return;
2136         }
2137         return;
2138 }
2139
2140
2141 /*
2142  * opeers - print a peer spreadsheet the old way
2143  */
2144 /*ARGSUSED*/
2145 static void
2146 opeers(
2147         struct parse *pcmd,
2148         FILE *fp
2149         )
2150 {
2151         int af = 0;
2152
2153         if (pcmd->nargs == 1) {
2154                 if (pcmd->argval->ival == 6)
2155                         af = AF_INET6;
2156                 else
2157                         af = AF_INET;
2158         }
2159         doopeers(0, fp, af);
2160 }
2161
2162
2163 /*
2164  * lopeers - print a peer spreadsheet including all fuzzball peers
2165  */
2166 /*ARGSUSED*/
2167 static void
2168 lopeers(
2169         struct parse *pcmd,
2170         FILE *fp
2171         )
2172 {
2173         int af = 0;
2174
2175         if (pcmd->nargs == 1) {
2176                 if (pcmd->argval->ival == 6)
2177                         af = AF_INET6;
2178                 else
2179                         af = AF_INET;
2180         }
2181         doopeers(1, fp, af);
2182 }
2183
2184
2185 /*
2186  * config - send a configuration command to a remote host
2187  */
2188 static void
2189 config (
2190         struct parse *pcmd,
2191         FILE *fp
2192         )
2193 {
2194         const char *cfgcmd;
2195         u_short rstatus;
2196         size_t rsize;
2197         const char *rdata;
2198         char *resp;
2199         int res;
2200         int col;
2201         int i;
2202
2203         cfgcmd = pcmd->argval[0].string;
2204
2205         if (debug > 2)
2206                 fprintf(stderr,
2207                         "In Config\n"
2208                         "Keyword = %s\n"
2209                         "Command = %s\n", pcmd->keyword, cfgcmd);
2210
2211         res = doquery(CTL_OP_CONFIGURE, 0, 1,
2212                       strlen(cfgcmd), cfgcmd,
2213                       &rstatus, &rsize, &rdata);
2214
2215         if (res != 0)
2216                 return;
2217
2218         if (rsize > 0 && '\n' == rdata[rsize - 1])
2219                 rsize--;
2220
2221         resp = emalloc(rsize + 1);
2222         memcpy(resp, rdata, rsize);
2223         resp[rsize] = '\0';
2224
2225         col = -1;
2226         if (1 == sscanf(resp, "column %d syntax error", &col)
2227             && col >= 0 && (size_t)col <= strlen(cfgcmd) + 1) {
2228                 if (interactive) {
2229                         printf("______");       /* "ntpq> " */
2230                         printf("________");     /* ":config " */
2231                 } else
2232                         printf("%s\n", cfgcmd);
2233                 for (i = 1; i < col; i++)
2234                         putchar('_');
2235                 printf("^\n");
2236         }
2237         printf("%s\n", resp);
2238         free(resp);
2239 }
2240
2241
2242 /*
2243  * config_from_file - remotely configure an ntpd daemon using the
2244  * specified configuration file
2245  * SK: This function is a kludge at best and is full of bad design
2246  * bugs:
2247  * 1. ntpq uses UDP, which means that there is no guarantee of in-order,
2248  *    error-free delivery.
2249  * 2. The maximum length of a packet is constrained, and as a result, the
2250  *    maximum length of a line in a configuration file is constrained.
2251  *    Longer lines will lead to unpredictable results.
2252  * 3. Since this function is sending a line at a time, we can't update
2253  *    the control key through the configuration file (YUCK!!)
2254  *
2255  * Pearly: There are a few places where 'size_t' is cast to 'int' based
2256  * on the assumption that 'int' can hold the size of the involved
2257  * buffers without overflow.
2258  */
2259 static void
2260 config_from_file (
2261         struct parse *pcmd,
2262         FILE *fp
2263         )
2264 {
2265         u_short rstatus;
2266         size_t rsize;
2267         const char *rdata;
2268         char * cp;
2269         int res;
2270         FILE *config_fd;
2271         char config_cmd[MAXLINE];
2272         size_t config_len;
2273         int i;
2274         int retry_limit;
2275
2276         if (debug > 2)
2277                 fprintf(stderr,
2278                         "In Config\n"
2279                         "Keyword = %s\n"
2280                         "Filename = %s\n", pcmd->keyword,
2281                         pcmd->argval[0].string);
2282
2283         config_fd = fopen(pcmd->argval[0].string, "r");
2284         if (NULL == config_fd) {
2285                 printf("ERROR!! Couldn't open file: %s\n",
2286                        pcmd->argval[0].string);
2287                 return;
2288         }
2289
2290         printf("Sending configuration file, one line at a time.\n");
2291         i = 0;
2292         while (fgets(config_cmd, MAXLINE, config_fd) != NULL) {
2293                 /* Eliminate comments first. */
2294                 cp = strchr(config_cmd, '#');
2295                 config_len = (NULL != cp)
2296                     ? (size_t)(cp - config_cmd)
2297                     : strlen(config_cmd);
2298
2299                 /* [Bug 3015] make sure there's no trailing whitespace;
2300                  * the fix for [Bug 2853] on the server side forbids
2301                  * those. And don't transmit empty lines, as this would
2302                  * just be waste.
2303                  */
2304                 while (config_len != 0 &&
2305                        (u_char)config_cmd[config_len-1] <= ' ')
2306                         --config_len;
2307                 config_cmd[config_len] = '\0';
2308
2309                 ++i;
2310                 if (0 == config_len)
2311                         continue;
2312
2313                 retry_limit = 2;
2314                 do
2315                         res = doquery(CTL_OP_CONFIGURE, 0, 1,
2316                                       config_len, config_cmd,
2317                                       &rstatus, &rsize, &rdata);
2318                 while (res != 0 && retry_limit--);
2319                 if (res != 0) {
2320                         printf("Line No: %d query failed: %.*s\n"
2321                                "Subsequent lines not sent.\n",
2322                                i, (int)config_len, config_cmd);
2323                         fclose(config_fd);
2324                         return;
2325                 }
2326
2327                 /* Right-strip the result code string, then output the
2328                  * last line executed, with result code. */
2329                 while (rsize != 0 && (u_char)rdata[rsize - 1] <= ' ')
2330                         --rsize;
2331                 printf("Line No: %d %.*s: %.*s\n", i,
2332                        (int)rsize, rdata,
2333                        (int)config_len, config_cmd);
2334         }
2335         printf("Done sending file\n");
2336         fclose(config_fd);
2337 }
2338
2339
2340 static int
2341 fetch_nonce(
2342         char *  nonce,
2343         size_t  cb_nonce
2344         )
2345 {
2346         const char      nonce_eq[] = "nonce=";
2347         int             qres;
2348         u_short         rstatus;
2349         size_t          rsize;
2350         const char *    rdata;
2351         size_t          chars;
2352
2353         /*
2354          * Retrieve a nonce specific to this client to demonstrate to
2355          * ntpd that we're capable of receiving responses to our source
2356          * IP address, and thereby unlikely to be forging the source.
2357          */
2358         qres = doquery(CTL_OP_REQ_NONCE, 0, 0, 0, NULL, &rstatus,
2359                        &rsize, &rdata);
2360         if (qres) {
2361                 fprintf(stderr, "nonce request failed\n");
2362                 return FALSE;
2363         }
2364
2365         if ((size_t)rsize <= sizeof(nonce_eq) - 1 ||
2366             strncmp(rdata, nonce_eq, sizeof(nonce_eq) - 1)) {
2367                 fprintf(stderr, "unexpected nonce response format: %.*s\n",
2368                         (int)rsize, rdata); /* cast is wobbly */
2369                 return FALSE;
2370         }
2371         chars = rsize - (sizeof(nonce_eq) - 1);
2372         if (chars >= (int)cb_nonce)
2373                 return FALSE;
2374         memcpy(nonce, rdata + sizeof(nonce_eq) - 1, chars);
2375         nonce[chars] = '\0';
2376         while (chars > 0 &&
2377                ('\r' == nonce[chars - 1] || '\n' == nonce[chars - 1])) {
2378                 chars--;
2379                 nonce[chars] = '\0';
2380         }
2381
2382         return TRUE;
2383 }
2384
2385
2386 /*
2387  * add_mru      Add and entry to mru list, hash table, and allocate
2388  *              and return a replacement.
2389  *              This is a helper for collect_mru_list().
2390  */
2391 static mru *
2392 add_mru(
2393         mru *add
2394         )
2395 {
2396         u_short hash;
2397         mru *mon;
2398         mru *unlinked;
2399
2400
2401         hash = NTP_HASH_ADDR(&add->addr);
2402         /* see if we have it among previously received entries */
2403         for (mon = hash_table[hash]; mon != NULL; mon = mon->hlink)
2404                 if (SOCK_EQ(&mon->addr, &add->addr))
2405                         break;
2406         if (mon != NULL) {
2407                 if (!L_ISGEQ(&add->first, &mon->first)) {
2408                         fprintf(stderr,
2409                                 "add_mru duplicate %s new first ts %08x.%08x precedes prior %08x.%08x\n",
2410                                 sptoa(&add->addr), add->last.l_ui,
2411                                 add->last.l_uf, mon->last.l_ui,
2412                                 mon->last.l_uf);
2413                         exit(1);
2414                 }
2415                 UNLINK_DLIST(mon, mlink);
2416                 UNLINK_SLIST(unlinked, hash_table[hash], mon, hlink, mru);
2417                 INSIST(unlinked == mon);
2418                 mru_dupes++;
2419                 TRACE(2, ("(updated from %08x.%08x) ", mon->last.l_ui,
2420                       mon->last.l_uf));
2421         }
2422         LINK_DLIST(mru_list, add, mlink);
2423         LINK_SLIST(hash_table[hash], add, hlink);
2424         TRACE(2, ("add_mru %08x.%08x c %d m %d v %d rest %x first %08x.%08x %s\n",
2425               add->last.l_ui, add->last.l_uf, add->count,
2426               (int)add->mode, (int)add->ver, (u_int)add->rs,
2427               add->first.l_ui, add->first.l_uf, sptoa(&add->addr)));
2428         /* if we didn't update an existing entry, alloc replacement */
2429         if (NULL == mon) {
2430                 mon = emalloc(sizeof(*mon));
2431                 mru_count++;
2432         }
2433         ZERO(*mon);
2434
2435         return mon;
2436 }
2437
2438
2439 /* MGOT macro is specific to collect_mru_list() */
2440 #define MGOT(bit)                               \
2441         do {                                    \
2442                 got |= (bit);                   \
2443                 if (MRU_GOT_ALL == got) {       \
2444                         got = 0;                \
2445                         mon = add_mru(mon);     \
2446                         ci++;                   \
2447                 }                               \
2448         } while (0)
2449
2450
2451 int
2452 mrulist_ctrl_c_hook(void)
2453 {
2454         mrulist_interrupted = TRUE;
2455         return TRUE;
2456 }
2457
2458
2459 static int
2460 collect_mru_list(
2461         const char *    parms,
2462         l_fp *          pnow
2463         )
2464 {
2465         const u_int sleep_msecs = 5;
2466         static int ntpd_row_limit = MRU_ROW_LIMIT;
2467         int c_mru_l_rc;         /* this function's return code */
2468         u_char got;             /* MRU_GOT_* bits */
2469         time_t next_report;
2470         size_t cb;
2471         mru *mon;
2472         mru *head;
2473         mru *recent;
2474         int list_complete;
2475         char nonce[128];
2476         char buf[128];
2477         char req_buf[CTL_MAX_DATA_LEN];
2478         char *req;
2479         char *req_end;
2480         size_t chars;
2481         int qres;
2482         u_short rstatus;
2483         size_t rsize;
2484         const char *rdata;
2485         int limit;
2486         int frags;
2487         int cap_frags;
2488         char *tag;
2489         char *val;
2490         int si;         /* server index in response */
2491         int ci;         /* client (our) index for validation */
2492         int ri;         /* request index (.# suffix) */
2493         int mv;
2494         l_fp newest;
2495         l_fp last_older;
2496         sockaddr_u addr_older;
2497         int have_now;
2498         int have_addr_older;
2499         int have_last_older;
2500         u_int restarted_count;
2501         u_int nonce_uses;
2502         u_short hash;
2503         mru *unlinked;
2504
2505         if (!fetch_nonce(nonce, sizeof(nonce)))
2506                 return FALSE;
2507
2508         nonce_uses = 0;
2509         restarted_count = 0;
2510         mru_count = 0;
2511         INIT_DLIST(mru_list, mlink);
2512         cb = NTP_HASH_SIZE * sizeof(*hash_table);
2513         INSIST(NULL == hash_table);
2514         hash_table = emalloc_zero(cb);
2515
2516         c_mru_l_rc = FALSE;
2517         list_complete = FALSE;
2518         have_now = FALSE;
2519         cap_frags = TRUE;
2520         got = 0;
2521         ri = 0;
2522         cb = sizeof(*mon);
2523         mon = emalloc_zero(cb);
2524         ZERO(*pnow);
2525         ZERO(last_older);
2526         next_report = time(NULL) + MRU_REPORT_SECS;
2527
2528         limit = min(3 * MAXFRAGS, ntpd_row_limit);
2529         frags = MAXFRAGS;
2530         snprintf(req_buf, sizeof(req_buf), "nonce=%s, frags=%d%s",
2531                  nonce, frags, parms);
2532         nonce_uses++;
2533
2534         while (TRUE) {
2535                 if (debug)
2536                         fprintf(stderr, "READ_MRU parms: %s\n", req_buf);
2537
2538                 qres = doqueryex(CTL_OP_READ_MRU, 0, 0,
2539                                  strlen(req_buf), req_buf,
2540                                  &rstatus, &rsize, &rdata, TRUE);
2541
2542                 if (CERR_UNKNOWNVAR == qres && ri > 0) {
2543                         /*
2544                          * None of the supplied prior entries match, so
2545                          * toss them from our list and try again.
2546                          */
2547                         if (debug)
2548                                 fprintf(stderr,
2549                                         "no overlap between %d prior entries and server MRU list\n",
2550                                         ri);
2551                         while (ri--) {
2552                                 recent = HEAD_DLIST(mru_list, mlink);
2553                                 INSIST(recent != NULL);
2554                                 if (debug)
2555                                         fprintf(stderr,
2556                                                 "tossing prior entry %s to resync\n",
2557                                                 sptoa(&recent->addr));
2558                                 UNLINK_DLIST(recent, mlink);
2559                                 hash = NTP_HASH_ADDR(&recent->addr);
2560                                 UNLINK_SLIST(unlinked, hash_table[hash],
2561                                              recent, hlink, mru);
2562                                 INSIST(unlinked == recent);
2563                                 free(recent);
2564                                 mru_count--;
2565                         }
2566                         if (NULL == HEAD_DLIST(mru_list, mlink)) {
2567                                 restarted_count++;
2568                                 if (restarted_count > 8) {
2569                                         fprintf(stderr,
2570                                                 "Giving up after 8 restarts from the beginning.\n"
2571                                                 "With high-traffic NTP servers, this can occur if the\n"
2572                                                 "MRU list is limited to less than about 16 seconds' of\n"
2573                                                 "entries.  See the 'mru' ntp.conf directive to adjust.\n");
2574                                         goto cleanup_return;
2575                                 }
2576                                 if (debug)
2577                                         fprintf(stderr,
2578                                                 "--->   Restarting from the beginning, retry #%u\n",
2579                                                 restarted_count);
2580                         }
2581                 } else if (CERR_UNKNOWNVAR == qres) {
2582                         fprintf(stderr,
2583                                 "CERR_UNKNOWNVAR from ntpd but no priors given.\n");
2584                         goto cleanup_return;
2585                 } else if (CERR_BADVALUE == qres) {
2586                         if (cap_frags) {
2587                                 cap_frags = FALSE;
2588                                 if (debug)
2589                                         fprintf(stderr,
2590                                                 "Reverted to row limit from fragments limit.\n");
2591                         } else {
2592                                 /* ntpd has lower cap on row limit */
2593                                 ntpd_row_limit--;
2594                                 limit = min(limit, ntpd_row_limit);
2595                                 if (debug)
2596                                         fprintf(stderr,
2597                                                 "Row limit reduced to %d following CERR_BADVALUE.\n",
2598                                                 limit);
2599                         }
2600                 } else if (ERR_INCOMPLETE == qres ||
2601                            ERR_TIMEOUT == qres) {
2602                         /*
2603                          * Reduce the number of rows/frags requested by
2604                          * half to recover from lost response fragments.
2605                          */
2606                         if (cap_frags) {
2607                                 frags = max(2, frags / 2);
2608                                 if (debug)
2609                                         fprintf(stderr,
2610                                                 "Frag limit reduced to %d following incomplete response.\n",
2611                                                 frags);
2612                         } else {
2613                                 limit = max(2, limit / 2);
2614                                 if (debug)
2615                                         fprintf(stderr,
2616                                                 "Row limit reduced to %d following incomplete response.\n",
2617                                                 limit);
2618                         }
2619                 } else if (qres) {
2620                         show_error_msg(qres, 0);
2621                         goto cleanup_return;
2622                 }
2623                 /*
2624                  * This is a cheap cop-out implementation of rawmode
2625                  * output for mrulist.  A better approach would be to
2626                  * dump similar output after the list is collected by
2627                  * ntpq with a continuous sequence of indexes.  This
2628                  * cheap approach has indexes resetting to zero for
2629                  * each query/response, and duplicates are not
2630                  * coalesced.
2631                  */
2632                 if (!qres && rawmode)
2633                         printvars(rsize, rdata, rstatus, TYPE_SYS, 1, stdout);
2634                 ci = 0;
2635                 have_addr_older = FALSE;
2636                 have_last_older = FALSE;
2637                 while (!qres && nextvar(&rsize, &rdata, &tag, &val)) {
2638                         if (debug > 1)
2639                                 fprintf(stderr, "nextvar gave: %s = %s\n",
2640                                         tag, val);
2641                         switch(tag[0]) {
2642
2643                         case 'a':
2644                                 if (!strcmp(tag, "addr.older")) {
2645                                         if (!have_last_older) {
2646                                                 fprintf(stderr,
2647                                                         "addr.older %s before last.older\n",
2648                                                         val);
2649                                                 goto cleanup_return;
2650                                         }
2651                                         if (!decodenetnum(val, &addr_older)) {
2652                                                 fprintf(stderr,
2653                                                         "addr.older %s garbled\n",
2654                                                         val);
2655                                                 goto cleanup_return;
2656                                         }
2657                                         hash = NTP_HASH_ADDR(&addr_older);
2658                                         for (recent = hash_table[hash];
2659                                              recent != NULL;
2660                                              recent = recent->hlink)
2661                                                 if (ADDR_PORT_EQ(
2662                                                       &addr_older,
2663                                                       &recent->addr))
2664                                                         break;
2665                                         if (NULL == recent) {
2666                                                 fprintf(stderr,
2667                                                         "addr.older %s not in hash table\n",
2668                                                         val);
2669                                                 goto cleanup_return;
2670                                         }
2671                                         if (!L_ISEQU(&last_older,
2672                                                      &recent->last)) {
2673                                                 fprintf(stderr,
2674                                                         "last.older %08x.%08x mismatches %08x.%08x expected.\n",
2675                                                         last_older.l_ui,
2676                                                         last_older.l_uf,
2677                                                         recent->last.l_ui,
2678                                                         recent->last.l_uf);
2679                                                 goto cleanup_return;
2680                                         }
2681                                         have_addr_older = TRUE;
2682                                 } else if (1 != sscanf(tag, "addr.%d", &si)
2683                                            || si != ci)
2684                                         goto nomatch;
2685                                 else if (decodenetnum(val, &mon->addr))
2686                                         MGOT(MRU_GOT_ADDR);
2687                                 break;
2688
2689                         case 'l':
2690                                 if (!strcmp(tag, "last.older")) {
2691                                         if ('0' != val[0] ||
2692                                             'x' != val[1] ||
2693                                             !hextolfp(val + 2, &last_older)) {
2694                                                 fprintf(stderr,
2695                                                         "last.older %s garbled\n",
2696                                                         val);
2697                                                 goto cleanup_return;
2698                                         }
2699                                         have_last_older = TRUE;
2700                                 } else if (!strcmp(tag, "last.newest")) {
2701                                         if (0 != got) {
2702                                                 fprintf(stderr,
2703                                                         "last.newest %s before complete row, got = 0x%x\n",
2704                                                         val, (u_int)got);
2705                                                 goto cleanup_return;
2706                                         }
2707                                         if (!have_now) {
2708                                                 fprintf(stderr,
2709                                                         "last.newest %s before now=\n",
2710                                                         val);
2711                                                 goto cleanup_return;
2712                                         }
2713                                         head = HEAD_DLIST(mru_list, mlink);
2714                                         if (NULL != head) {
2715                                                 if ('0' != val[0] ||
2716                                                     'x' != val[1] ||
2717                                                     !hextolfp(val + 2, &newest) ||
2718                                                     !L_ISEQU(&newest,
2719                                                              &head->last)) {
2720                                                         fprintf(stderr,
2721                                                                 "last.newest %s mismatches %08x.%08x",
2722                                                                 val,
2723                                                                 head->last.l_ui,
2724                                                                 head->last.l_uf);
2725                                                         goto cleanup_return;
2726                                                 }
2727                                         }
2728                                         list_complete = TRUE;
2729                                 } else if (1 != sscanf(tag, "last.%d", &si) ||
2730                                            si != ci || '0' != val[0] ||
2731                                            'x' != val[1] ||
2732                                            !hextolfp(val + 2, &mon->last)) {
2733                                         goto nomatch;
2734                                 } else {
2735                                         MGOT(MRU_GOT_LAST);
2736                                         /*
2737                                          * allow interrupted retrieval,
2738                                          * using most recent retrieved
2739                                          * entry's last seen timestamp
2740                                          * as the end of operation.
2741                                          */
2742                                         *pnow = mon->last;
2743                                 }
2744                                 break;
2745
2746                         case 'f':
2747                                 if (1 != sscanf(tag, "first.%d", &si) ||
2748                                     si != ci || '0' != val[0] ||
2749                                     'x' != val[1] ||
2750                                     !hextolfp(val + 2, &mon->first))
2751                                         goto nomatch;
2752                                 MGOT(MRU_GOT_FIRST);
2753                                 break;
2754
2755                         case 'n':
2756                                 if (!strcmp(tag, "nonce")) {
2757                                         strlcpy(nonce, val, sizeof(nonce));
2758                                         nonce_uses = 0;
2759                                         break; /* case */
2760                                 } else if (strcmp(tag, "now") ||
2761                                            '0' != val[0] ||
2762                                            'x' != val[1] ||
2763                                             !hextolfp(val + 2, pnow))
2764                                         goto nomatch;
2765                                 have_now = TRUE;
2766                                 break;
2767
2768                         case 'c':
2769                                 if (1 != sscanf(tag, "ct.%d", &si) ||
2770                                     si != ci ||
2771                                     1 != sscanf(val, "%d", &mon->count)
2772                                     || mon->count < 1)
2773                                         goto nomatch;
2774                                 MGOT(MRU_GOT_COUNT);
2775                                 break;
2776
2777                         case 'm':
2778                                 if (1 != sscanf(tag, "mv.%d", &si) ||
2779                                     si != ci ||
2780                                     1 != sscanf(val, "%d", &mv))
2781                                         goto nomatch;
2782                                 mon->mode = PKT_MODE(mv);
2783                                 mon->ver = PKT_VERSION(mv);
2784                                 MGOT(MRU_GOT_MV);
2785                                 break;
2786
2787                         case 'r':
2788                                 if (1 != sscanf(tag, "rs.%d", &si) ||
2789                                     si != ci ||
2790                                     1 != sscanf(val, "0x%hx", &mon->rs))
2791                                         goto nomatch;
2792                                 MGOT(MRU_GOT_RS);
2793                                 break;
2794
2795                         default:
2796                         nomatch:
2797                                 /* empty stmt */ ;
2798                                 /* ignore unknown tags */
2799                         }
2800                 }
2801                 if (have_now)
2802                         list_complete = TRUE;
2803                 if (list_complete) {
2804                         INSIST(0 == ri || have_addr_older);
2805                 }
2806                 if (mrulist_interrupted) {
2807                         printf("mrulist retrieval interrupted by operator.\n"
2808                                "Displaying partial client list.\n");
2809                         fflush(stdout);
2810                 }
2811                 if (list_complete || mrulist_interrupted) {
2812                         fprintf(stderr,
2813                                 "\rRetrieved %u unique MRU entries and %u updates.\n",
2814                                 mru_count, mru_dupes);
2815                         fflush(stderr);
2816                         break;
2817                 }
2818                 if (time(NULL) >= next_report) {
2819                         next_report += MRU_REPORT_SECS;
2820                         fprintf(stderr, "\r%u (%u updates) ", mru_count,
2821                                 mru_dupes);
2822                         fflush(stderr);
2823                 }
2824
2825                 /*
2826                  * Snooze for a bit between queries to let ntpd catch
2827                  * up with other duties.
2828                  */
2829 #ifdef SYS_WINNT
2830                 Sleep(sleep_msecs);
2831 #elif !defined(HAVE_NANOSLEEP)
2832                 sleep((sleep_msecs / 1000) + 1);
2833 #else
2834                 {
2835                         struct timespec interv = { 0,
2836                                                    1000 * sleep_msecs };
2837                         nanosleep(&interv, NULL);
2838                 }
2839 #endif
2840                 /*
2841                  * If there were no errors, increase the number of rows
2842                  * to a maximum of 3 * MAXFRAGS (the most packets ntpq
2843                  * can handle in one response), on the assumption that
2844                  * no less than 3 rows fit in each packet, capped at
2845                  * our best guess at the server's row limit.
2846                  */
2847                 if (!qres) {
2848                         if (cap_frags) {
2849                                 frags = min(MAXFRAGS, frags + 1);
2850                         } else {
2851                                 limit = min3(3 * MAXFRAGS,
2852                                              ntpd_row_limit,
2853                                              max(limit + 1,
2854                                                  limit * 33 / 32));
2855                         }
2856                 }
2857                 /*
2858                  * prepare next query with as many address and last-seen
2859                  * timestamps as will fit in a single packet.
2860                  */
2861                 req = req_buf;
2862                 req_end = req_buf + sizeof(req_buf);
2863 #define REQ_ROOM        (req_end - req)
2864                 snprintf(req, REQ_ROOM, "nonce=%s, %s=%d%s", nonce,
2865                          (cap_frags)
2866                              ? "frags"
2867                              : "limit",
2868                          (cap_frags)
2869                              ? frags
2870                              : limit,
2871                          parms);
2872                 req += strlen(req);
2873                 nonce_uses++;
2874                 if (nonce_uses >= 4) {
2875                         if (!fetch_nonce(nonce, sizeof(nonce)))
2876                                 goto cleanup_return;
2877                         nonce_uses = 0;
2878                 }
2879
2880
2881                 for (ri = 0, recent = HEAD_DLIST(mru_list, mlink);
2882                      recent != NULL;
2883                      ri++, recent = NEXT_DLIST(mru_list, recent, mlink)) {
2884
2885                         snprintf(buf, sizeof(buf),
2886                                  ", addr.%d=%s, last.%d=0x%08x.%08x",
2887                                  ri, sptoa(&recent->addr), ri,
2888                                  recent->last.l_ui, recent->last.l_uf);
2889                         chars = strlen(buf);
2890                         if ((size_t)REQ_ROOM <= chars)
2891                                 break;
2892                         memcpy(req, buf, chars + 1);
2893                         req += chars;
2894                 }
2895         }
2896
2897         c_mru_l_rc = TRUE;
2898         goto retain_hash_table;
2899
2900 cleanup_return:
2901         free(hash_table);
2902         hash_table = NULL;
2903
2904 retain_hash_table:
2905         if (mon != NULL)
2906                 free(mon);
2907
2908         return c_mru_l_rc;
2909 }
2910
2911
2912 /*
2913  * qcmp_mru_addr - sort MRU entries by remote address.
2914  *
2915  * All IPv4 addresses sort before any IPv6, addresses are sorted by
2916  * value within address family.
2917  */
2918 static int
2919 qcmp_mru_addr(
2920         const void *v1,
2921         const void *v2
2922         )
2923 {
2924         const mru * const *     ppm1 = v1;
2925         const mru * const *     ppm2 = v2;
2926         const mru *             pm1;
2927         const mru *             pm2;
2928         u_short                 af1;
2929         u_short                 af2;
2930         size_t                  cmplen;
2931         size_t                  addr_off;
2932
2933         pm1 = *ppm1;
2934         pm2 = *ppm2;
2935
2936         af1 = AF(&pm1->addr);
2937         af2 = AF(&pm2->addr);
2938
2939         if (af1 != af2)
2940                 return (AF_INET == af1)
2941                            ? -1
2942                            : 1;
2943
2944         cmplen = SIZEOF_INADDR(af1);
2945         addr_off = (AF_INET == af1)
2946                       ? offsetof(struct sockaddr_in, sin_addr)
2947                       : offsetof(struct sockaddr_in6, sin6_addr);
2948
2949         return memcmp((const char *)&pm1->addr + addr_off,
2950                       (const char *)&pm2->addr + addr_off,
2951                       cmplen);
2952 }
2953
2954
2955 static int
2956 qcmp_mru_r_addr(
2957         const void *v1,
2958         const void *v2
2959         )
2960 {
2961         return -qcmp_mru_addr(v1, v2);
2962 }
2963
2964
2965 /*
2966  * qcmp_mru_count - sort MRU entries by times seen (hit count).
2967  */
2968 static int
2969 qcmp_mru_count(
2970         const void *v1,
2971         const void *v2
2972         )
2973 {
2974         const mru * const *     ppm1 = v1;
2975         const mru * const *     ppm2 = v2;
2976         const mru *             pm1;
2977         const mru *             pm2;
2978
2979         pm1 = *ppm1;
2980         pm2 = *ppm2;
2981
2982         return (pm1->count < pm2->count)
2983                    ? -1
2984                    : ((pm1->count == pm2->count)
2985                           ? 0
2986                           : 1);
2987 }
2988
2989
2990 static int
2991 qcmp_mru_r_count(
2992         const void *v1,
2993         const void *v2
2994         )
2995 {
2996         return -qcmp_mru_count(v1, v2);
2997 }
2998
2999
3000 /*
3001  * qcmp_mru_avgint - sort MRU entries by average interval.
3002  */
3003 static int
3004 qcmp_mru_avgint(
3005         const void *v1,
3006         const void *v2
3007         )
3008 {
3009         const mru * const *     ppm1 = v1;
3010         const mru * const *     ppm2 = v2;
3011         const mru *             pm1;
3012         const mru *             pm2;
3013         l_fp                    interval;
3014         double                  avg1;
3015         double                  avg2;
3016
3017         pm1 = *ppm1;
3018         pm2 = *ppm2;
3019
3020         interval = pm1->last;
3021         L_SUB(&interval, &pm1->first);
3022         LFPTOD(&interval, avg1);
3023         avg1 /= pm1->count;
3024
3025         interval = pm2->last;
3026         L_SUB(&interval, &pm2->first);
3027         LFPTOD(&interval, avg2);
3028         avg2 /= pm2->count;
3029
3030         if (avg1 < avg2)
3031                 return -1;
3032         else if (avg1 > avg2)
3033                 return 1;
3034
3035         /* secondary sort on lstint - rarely tested */
3036         if (L_ISEQU(&pm1->last, &pm2->last))
3037                 return 0;
3038         else if (L_ISGEQ(&pm1->last, &pm2->last))
3039                 return -1;
3040         else
3041                 return 1;
3042 }
3043
3044
3045 static int
3046 qcmp_mru_r_avgint(
3047         const void *v1,
3048         const void *v2
3049         )
3050 {
3051         return -qcmp_mru_avgint(v1, v2);
3052 }
3053
3054
3055 /*
3056  * mrulist - ntpq's mrulist command to fetch an arbitrarily large Most
3057  *           Recently Used (seen) remote address list from ntpd.
3058  *
3059  * Similar to ntpdc's monlist command, but not limited to a single
3060  * request/response, and thereby not limited to a few hundred remote
3061  * addresses.
3062  *
3063  * See ntpd/ntp_control.c read_mru_list() for comments on the way
3064  * CTL_OP_READ_MRU is designed to be used.
3065  *
3066  * mrulist intentionally differs from monlist in the way the avgint
3067  * column is calculated.  monlist includes the time after the last
3068  * packet from the client until the monlist query time in the average,
3069  * while mrulist excludes it.  That is, monlist's average interval grows
3070  * over time for remote addresses not heard from in some time, while it
3071  * remains unchanged in mrulist.  This also affects the avgint value for
3072  * entries representing a single packet, with identical first and last
3073  * timestamps.  mrulist shows 0 avgint, monlist shows a value identical
3074  * to lstint.
3075  */
3076 static void
3077 mrulist(
3078         struct parse *  pcmd,
3079         FILE *          fp
3080         )
3081 {
3082         const char mincount_eq[] =      "mincount=";
3083         const char resall_eq[] =        "resall=";
3084         const char resany_eq[] =        "resany=";
3085         const char maxlstint_eq[] =     "maxlstint=";
3086         const char laddr_eq[] =         "laddr=";
3087         const char sort_eq[] =          "sort=";
3088         mru_sort_order order;
3089         size_t n;
3090         char parms_buf[128];
3091         char buf[24];
3092         char *parms;
3093         const char *arg;
3094         size_t cb;
3095         mru **sorted;
3096         mru **ppentry;
3097         mru *recent;
3098         l_fp now;
3099         l_fp interval;
3100         double favgint;
3101         double flstint;
3102         int avgint;
3103         int lstint;
3104         size_t i;
3105
3106         mrulist_interrupted = FALSE;
3107         push_ctrl_c_handler(&mrulist_ctrl_c_hook);
3108         fprintf(stderr,
3109                 "Ctrl-C will stop MRU retrieval and display partial results.\n");
3110         fflush(stderr);
3111
3112         order = MRUSORT_DEF;
3113         parms_buf[0] = '\0';
3114         parms = parms_buf;
3115         for (i = 0; i < pcmd->nargs; i++) {
3116                 arg = pcmd->argval[i].string;
3117                 if (arg != NULL) {
3118                         cb = strlen(arg) + 1;
3119                         if ((!strncmp(resall_eq, arg, sizeof(resall_eq)
3120                             - 1) || !strncmp(resany_eq, arg,
3121                             sizeof(resany_eq) - 1) || !strncmp(
3122                             mincount_eq, arg, sizeof(mincount_eq) - 1)
3123                             || !strncmp(laddr_eq, arg, sizeof(laddr_eq)
3124                             - 1) || !strncmp(maxlstint_eq, arg,
3125                             sizeof(laddr_eq) - 1)) && parms + cb + 2 <=
3126                             parms_buf + sizeof(parms_buf)) {
3127                                 /* these are passed intact to ntpd */
3128                                 memcpy(parms, ", ", 2);
3129                                 parms += 2;
3130                                 memcpy(parms, arg, cb);
3131                                 parms += cb - 1;
3132                         } else if (!strncmp(sort_eq, arg,
3133                                             sizeof(sort_eq) - 1)) {
3134                                 arg += sizeof(sort_eq) - 1;
3135                                 for (n = 0;
3136                                      n < COUNTOF(mru_sort_keywords);
3137                                      n++)
3138                                         if (!strcmp(mru_sort_keywords[n],
3139                                                     arg))
3140                                                 break;
3141                                 if (n < COUNTOF(mru_sort_keywords))
3142                                         order = n;
3143                         } else if (!strcmp("limited", arg) ||
3144                                    !strcmp("kod", arg)) {
3145                                 /* transform to resany=... */
3146                                 snprintf(buf, sizeof(buf),
3147                                          ", resany=0x%x",
3148                                          ('k' == arg[0])
3149                                              ? RES_KOD
3150                                              : RES_LIMITED);
3151                                 cb = 1 + strlen(buf);
3152                                 if (parms + cb <
3153                                         parms_buf + sizeof(parms_buf)) {
3154                                         memcpy(parms, buf, cb);
3155                                         parms += cb - 1;
3156                                 }
3157                         } else
3158                                 fprintf(stderr,
3159                                         "ignoring unrecognized mrulist parameter: %s\n",
3160                                         arg);
3161                 }
3162         }
3163         parms = parms_buf;
3164
3165         if (!collect_mru_list(parms, &now))
3166                 return;
3167
3168         /* display the results */
3169         if (rawmode)
3170                 goto cleanup_return;
3171
3172         /* construct an array of entry pointers in default order */
3173         sorted = eallocarray(mru_count, sizeof(*sorted));
3174         ppentry = sorted;
3175         if (MRUSORT_R_DEF != order) {
3176                 ITER_DLIST_BEGIN(mru_list, recent, mlink, mru)
3177                         INSIST(ppentry < sorted + mru_count);
3178                         *ppentry = recent;
3179                         ppentry++;
3180                 ITER_DLIST_END()
3181         } else {
3182                 REV_ITER_DLIST_BEGIN(mru_list, recent, mlink, mru)
3183                         INSIST(ppentry < sorted + mru_count);
3184                         *ppentry = recent;
3185                         ppentry++;
3186                 REV_ITER_DLIST_END()
3187         }
3188
3189         if (ppentry - sorted != (int)mru_count) {
3190                 fprintf(stderr,
3191                         "mru_count %u should match MRU list depth %ld.\n",
3192                         mru_count, (long)(ppentry - sorted));
3193                 free(sorted);
3194                 goto cleanup_return;
3195         }
3196
3197         /* re-sort sorted[] if not default or reverse default */
3198         if (MRUSORT_R_DEF < order)
3199                 qsort(sorted, mru_count, sizeof(sorted[0]),
3200                       mru_qcmp_table[order]);
3201
3202         mrulist_interrupted = FALSE;
3203         printf( "lstint avgint rstr r m v  count rport remote address\n"
3204                 "==============================================================================\n");
3205                 /* '=' x 78 */
3206         for (ppentry = sorted; ppentry < sorted + mru_count; ppentry++) {
3207                 recent = *ppentry;
3208                 interval = now;
3209                 L_SUB(&interval, &recent->last);
3210                 LFPTOD(&interval, flstint);
3211                 lstint = (int)(flstint + 0.5);
3212                 interval = recent->last;
3213                 L_SUB(&interval, &recent->first);
3214                 LFPTOD(&interval, favgint);
3215                 favgint /= recent->count;
3216                 avgint = (int)(favgint + 0.5);
3217                 fprintf(fp, "%6d %6d %4hx %c %d %d %6d %5u %s\n",
3218                         lstint, avgint, recent->rs,
3219                         (RES_KOD & recent->rs)
3220                             ? 'K'
3221                             : (RES_LIMITED & recent->rs)
3222                                   ? 'L'
3223                                   : '.',
3224                         (int)recent->mode, (int)recent->ver,
3225                         recent->count, SRCPORT(&recent->addr),
3226                         nntohost(&recent->addr));
3227                 if (showhostnames)
3228                         fflush(fp);
3229                 if (mrulist_interrupted) {
3230                         fputs("\n --interrupted--\n", fp);
3231                         fflush(fp);
3232                         break;
3233                 }
3234         }
3235         fflush(fp);
3236         if (debug) {
3237                 fprintf(stderr,
3238                         "--- completed, freeing sorted[] pointers\n");
3239                 fflush(stderr);
3240         }
3241         free(sorted);
3242
3243 cleanup_return:
3244         if (debug) {
3245                 fprintf(stderr, "... freeing MRU entries\n");
3246                 fflush(stderr);
3247         }
3248         ITER_DLIST_BEGIN(mru_list, recent, mlink, mru)
3249                 free(recent);
3250         ITER_DLIST_END()
3251         if (debug) {
3252                 fprintf(stderr, "... freeing hash_table[]\n");
3253                 fflush(stderr);
3254         }
3255         free(hash_table);
3256         hash_table = NULL;
3257         INIT_DLIST(mru_list, mlink);
3258
3259         pop_ctrl_c_handler(&mrulist_ctrl_c_hook);
3260 }
3261
3262
3263 /*
3264  * validate_ifnum - helper for ifstats()
3265  *
3266  * Ensures rows are received in order and complete.
3267  */
3268 static void
3269 validate_ifnum(
3270         FILE *          fp,
3271         u_int           ifnum,
3272         int *           pfields,
3273         ifstats_row *   prow
3274         )
3275 {
3276         if (prow->ifnum == ifnum)
3277                 return;
3278         if (prow->ifnum + 1 <= ifnum) {
3279                 if (*pfields < IFSTATS_FIELDS)
3280                         fprintf(fp, "Warning: incomplete row with %d (of %d) fields",
3281                                 *pfields, IFSTATS_FIELDS);
3282                 *pfields = 0;
3283                 prow->ifnum = ifnum;
3284                 return;
3285         }
3286         fprintf(stderr,
3287                 "received if index %u, have %d of %d fields for index %u, aborting.\n",
3288                 ifnum, *pfields, IFSTATS_FIELDS, prow->ifnum);
3289         exit(1);
3290 }
3291
3292
3293 /*
3294  * another_ifstats_field - helper for ifstats()
3295  *
3296  * If all fields for the row have been received, print it.
3297  */
3298 static void
3299 another_ifstats_field(
3300         int *           pfields,
3301         ifstats_row *   prow,
3302         FILE *          fp
3303         )
3304 {
3305         u_int ifnum;
3306
3307         (*pfields)++;
3308         /* we understand 12 tags */
3309         if (IFSTATS_FIELDS > *pfields)
3310                 return;
3311         /*
3312         "    interface name                                        send\n"
3313         " #  address/broadcast     drop flag ttl mc received sent failed peers   uptime\n"
3314         "==============================================================================\n");
3315          */
3316         fprintf(fp,
3317                 "%3u %-24.24s %c %4x %3d %2d %6d %6d %6d %5d %8d\n"
3318                 "    %s\n",
3319                 prow->ifnum, prow->name,
3320                 (prow->enabled)
3321                     ? '.'
3322                     : 'D',
3323                 prow->flags, prow->ttl, prow->mcast_count,
3324                 prow->received, prow->sent, prow->send_errors,
3325                 prow->peer_count, prow->uptime, sptoa(&prow->addr));
3326         if (!SOCK_UNSPEC(&prow->bcast))
3327                 fprintf(fp, "    %s\n", sptoa(&prow->bcast));
3328         ifnum = prow->ifnum;
3329         ZERO(*prow);
3330         prow->ifnum = ifnum;
3331 }
3332
3333
3334 /*
3335  * ifstats - ntpq -c ifstats modeled on ntpdc -c ifstats.
3336  */
3337 static void
3338 ifstats(
3339         struct parse *  pcmd,
3340         FILE *          fp
3341         )
3342 {
3343         const char      addr_fmt[] =    "addr.%u";
3344         const char      bcast_fmt[] =   "bcast.%u";
3345         const char      en_fmt[] =      "en.%u";        /* enabled */
3346         const char      flags_fmt[] =   "flags.%u";
3347         const char      mc_fmt[] =      "mc.%u";        /* mcast count */
3348         const char      name_fmt[] =    "name.%u";
3349         const char      pc_fmt[] =      "pc.%u";        /* peer count */
3350         const char      rx_fmt[] =      "rx.%u";
3351         const char      tl_fmt[] =      "tl.%u";        /* ttl */
3352         const char      tx_fmt[] =      "tx.%u";
3353         const char      txerr_fmt[] =   "txerr.%u";
3354         const char      up_fmt[] =      "up.%u";        /* uptime */
3355         const char *    datap;
3356         int             qres;
3357         size_t          dsize;
3358         u_short         rstatus;
3359         char *          tag;
3360         char *          val;
3361         int             fields;
3362         u_int           ui;
3363         ifstats_row     row;
3364         int             comprende;
3365         size_t          len;
3366
3367         qres = doquery(CTL_OP_READ_ORDLIST_A, 0, TRUE, 0, NULL, &rstatus,
3368                        &dsize, &datap);
3369         if (qres)       /* message already displayed */
3370                 return;
3371
3372         fprintf(fp,
3373                 "    interface name                                        send\n"
3374                 " #  address/broadcast     drop flag ttl mc received sent failed peers   uptime\n"
3375                 "==============================================================================\n");
3376                 /* '=' x 78 */
3377
3378         ZERO(row);
3379         fields = 0;
3380         ui = 0;
3381         while (nextvar(&dsize, &datap, &tag, &val)) {
3382                 if (debug > 1)
3383                         fprintf(stderr, "nextvar gave: %s = %s\n", tag,
3384                                 (NULL == val)
3385                                     ? ""
3386                                     : val);
3387                 comprende = FALSE;
3388                 switch(tag[0]) {
3389
3390                 case 'a':
3391                         if (1 == sscanf(tag, addr_fmt, &ui) &&
3392                             decodenetnum(val, &row.addr))
3393                                 comprende = TRUE;
3394                         break;
3395
3396                 case 'b':
3397                         if (1 == sscanf(tag, bcast_fmt, &ui) &&
3398                             (NULL == val ||
3399                              decodenetnum(val, &row.bcast)))
3400                                 comprende = TRUE;
3401                         break;
3402
3403                 case 'e':
3404                         if (1 == sscanf(tag, en_fmt, &ui) &&
3405                             1 == sscanf(val, "%d", &row.enabled))
3406                                 comprende = TRUE;
3407                         break;
3408
3409                 case 'f':
3410                         if (1 == sscanf(tag, flags_fmt, &ui) &&
3411                             1 == sscanf(val, "0x%x", &row.flags))
3412                                 comprende = TRUE;
3413                         break;
3414
3415                 case 'm':
3416                         if (1 == sscanf(tag, mc_fmt, &ui) &&
3417                             1 == sscanf(val, "%d", &row.mcast_count))
3418                                 comprende = TRUE;
3419                         break;
3420
3421                 case 'n':
3422                         if (1 == sscanf(tag, name_fmt, &ui)) {
3423                                 /* strip quotes */
3424                                 INSIST(val);
3425                                 len = strlen(val);
3426                                 if (len >= 2 &&
3427                                     len - 2 < sizeof(row.name)) {
3428                                         len -= 2;
3429                                         memcpy(row.name, val + 1, len);
3430                                         row.name[len] = '\0';
3431                                         comprende = TRUE;
3432                                 }
3433                         }
3434                         break;
3435
3436                 case 'p':
3437                         if (1 == sscanf(tag, pc_fmt, &ui) &&
3438                             1 == sscanf(val, "%d", &row.peer_count))
3439                                 comprende = TRUE;
3440                         break;
3441
3442                 case 'r':
3443                         if (1 == sscanf(tag, rx_fmt, &ui) &&
3444                             1 == sscanf(val, "%d", &row.received))
3445                                 comprende = TRUE;
3446                         break;
3447
3448                 case 't':
3449                         if (1 == sscanf(tag, tl_fmt, &ui) &&
3450                             1 == sscanf(val, "%d", &row.ttl))
3451                                 comprende = TRUE;
3452                         else if (1 == sscanf(tag, tx_fmt, &ui) &&
3453                                  1 == sscanf(val, "%d", &row.sent))
3454                                 comprende = TRUE;
3455                         else if (1 == sscanf(tag, txerr_fmt, &ui) &&
3456                                  1 == sscanf(val, "%d", &row.send_errors))
3457                                 comprende = TRUE;
3458                         break;
3459
3460                 case 'u':
3461                         if (1 == sscanf(tag, up_fmt, &ui) &&
3462                             1 == sscanf(val, "%d", &row.uptime))
3463                                 comprende = TRUE;
3464                         break;
3465                 }
3466
3467                 if (comprende) {
3468                         /* error out if rows out of order */
3469                         validate_ifnum(fp, ui, &fields, &row);
3470                         /* if the row is complete, print it */
3471                         another_ifstats_field(&fields, &row, fp);
3472                 }
3473         }
3474         if (fields != IFSTATS_FIELDS)
3475                 fprintf(fp, "Warning: incomplete row with %d (of %d) fields",
3476                         fields, IFSTATS_FIELDS);
3477
3478         fflush(fp);
3479 }
3480
3481
3482 /*
3483  * validate_reslist_idx - helper for reslist()
3484  *
3485  * Ensures rows are received in order and complete.
3486  */
3487 static void
3488 validate_reslist_idx(
3489         FILE *          fp,
3490         u_int           idx,
3491         int *           pfields,
3492         reslist_row *   prow
3493         )
3494 {
3495         if (prow->idx == idx)
3496                 return;
3497         if (prow->idx + 1 == idx) {
3498                 if (*pfields < RESLIST_FIELDS)
3499                         fprintf(fp, "Warning: incomplete row with %d (of %d) fields",
3500                                 *pfields, RESLIST_FIELDS);
3501                 *pfields = 0;
3502                 prow->idx = idx;
3503                 return;
3504         }
3505         fprintf(stderr,
3506                 "received reslist index %u, have %d of %d fields for index %u, aborting.\n",
3507                 idx, *pfields, RESLIST_FIELDS, prow->idx);
3508         exit(1);
3509 }
3510
3511
3512 /*
3513  * another_reslist_field - helper for reslist()
3514  *
3515  * If all fields for the row have been received, print it.
3516  */
3517 static void
3518 another_reslist_field(
3519         int *           pfields,
3520         reslist_row *   prow,
3521         FILE *          fp
3522         )
3523 {
3524         char    addrmaskstr[128];
3525         int     prefix; /* subnet mask as prefix bits count */
3526         u_int   idx;
3527
3528         (*pfields)++;
3529         /* we understand 4 tags */
3530         if (RESLIST_FIELDS > *pfields)
3531                 return;
3532
3533         prefix = sockaddr_masktoprefixlen(&prow->mask);
3534         if (prefix >= 0)
3535                 snprintf(addrmaskstr, sizeof(addrmaskstr), "%s/%d",
3536                          stoa(&prow->addr), prefix);
3537         else
3538                 snprintf(addrmaskstr, sizeof(addrmaskstr), "%s %s",
3539                          stoa(&prow->addr), stoa(&prow->mask));
3540
3541         /*
3542         "   hits    addr/prefix or addr mask\n"
3543         "           restrictions\n"
3544         "==============================================================================\n");
3545          */
3546         fprintf(fp,
3547                 "%10lu %s\n"
3548                 "           %s\n",
3549                 prow->hits, addrmaskstr, prow->flagstr);
3550         idx = prow->idx;
3551         ZERO(*prow);
3552         prow->idx = idx;
3553 }
3554
3555
3556 /*
3557  * reslist - ntpq -c reslist modeled on ntpdc -c reslist.
3558  */
3559 static void
3560 reslist(
3561         struct parse *  pcmd,
3562         FILE *          fp
3563         )
3564 {
3565         const char addr_fmtu[] =        "addr.%u";
3566         const char mask_fmtu[] =        "mask.%u";
3567         const char hits_fmt[] =         "hits.%u";
3568         const char flags_fmt[] =        "flags.%u";
3569         const char qdata[] =            "addr_restrictions";
3570         const int qdata_chars =         COUNTOF(qdata) - 1;
3571         const char *    datap;
3572         int             qres;
3573         size_t          dsize;
3574         u_short         rstatus;
3575         char *          tag;
3576         char *          val;
3577         int             fields;
3578         u_int           ui;
3579         reslist_row     row;
3580         int             comprende;
3581         size_t          len;
3582
3583         qres = doquery(CTL_OP_READ_ORDLIST_A, 0, TRUE, qdata_chars,
3584                        qdata, &rstatus, &dsize, &datap);
3585         if (qres)       /* message already displayed */
3586                 return;
3587
3588         fprintf(fp,
3589                 "   hits    addr/prefix or addr mask\n"
3590                 "           restrictions\n"
3591                 "==============================================================================\n");
3592                 /* '=' x 78 */
3593
3594         ZERO(row);
3595         fields = 0;
3596         ui = 0;
3597         while (nextvar(&dsize, &datap, &tag, &val)) {
3598                 if (debug > 1)
3599                         fprintf(stderr, "nextvar gave: %s = %s\n", tag,
3600                                 (NULL == val)
3601                                     ? ""
3602                                     : val);
3603                 comprende = FALSE;
3604                 switch(tag[0]) {
3605
3606                 case 'a':
3607                         if (1 == sscanf(tag, addr_fmtu, &ui) &&
3608                             decodenetnum(val, &row.addr))
3609                                 comprende = TRUE;
3610                         break;
3611
3612                 case 'f':
3613                         if (1 == sscanf(tag, flags_fmt, &ui)) {
3614                                 if (NULL == val) {
3615                                         row.flagstr[0] = '\0';
3616                                         comprende = TRUE;
3617                                 } else {
3618                                         len = strlen(val);
3619                                         memcpy(row.flagstr, val, len);
3620                                         row.flagstr[len] = '\0';
3621                                         comprende = TRUE;
3622                                 }
3623                         }
3624                         break;
3625
3626                 case 'h':
3627                         if (1 == sscanf(tag, hits_fmt, &ui) &&
3628                             1 == sscanf(val, "%lu", &row.hits))
3629                                 comprende = TRUE;
3630                         break;
3631
3632                 case 'm':
3633                         if (1 == sscanf(tag, mask_fmtu, &ui) &&
3634                             decodenetnum(val, &row.mask))
3635                                 comprende = TRUE;
3636                         break;
3637                 }
3638
3639                 if (comprende) {
3640                         /* error out if rows out of order */
3641                         validate_reslist_idx(fp, ui, &fields, &row);
3642                         /* if the row is complete, print it */
3643                         another_reslist_field(&fields, &row, fp);
3644                 }
3645         }
3646         if (fields != RESLIST_FIELDS)
3647                 fprintf(fp, "Warning: incomplete row with %d (of %d) fields",
3648                         fields, RESLIST_FIELDS);
3649
3650         fflush(fp);
3651 }
3652
3653
3654 /*
3655  * collect_display_vdc
3656  */
3657 static void
3658 collect_display_vdc(
3659         associd_t       as,
3660         vdc *           table,
3661         int             decodestatus,
3662         FILE *          fp
3663         )
3664 {
3665         static const char * const suf[2] = { "adr", "port" };
3666         static const char * const leapbits[4] = { "00", "01",
3667                                                   "10", "11" };
3668         struct varlist vl[MAXLIST];
3669         char tagbuf[32];
3670         vdc *pvdc;
3671         u_short rstatus;
3672         size_t rsize;
3673         const char *rdata;
3674         int qres;
3675         char *tag;
3676         char *val;
3677         u_int n;
3678         size_t len;
3679         int match;
3680         u_long ul;
3681         int vtype;
3682
3683         ZERO(vl);
3684         for (pvdc = table; pvdc->tag != NULL; pvdc++) {
3685                 ZERO(pvdc->v);
3686                 if (NTP_ADD != pvdc->type) {
3687                         doaddvlist(vl, pvdc->tag);
3688                 } else {
3689                         for (n = 0; n < COUNTOF(suf); n++) {
3690                                 snprintf(tagbuf, sizeof(tagbuf), "%s%s",
3691                                          pvdc->tag, suf[n]);
3692                                 doaddvlist(vl, tagbuf);
3693                         }
3694                 }
3695         }
3696         qres = doquerylist(vl, CTL_OP_READVAR, as, 0, &rstatus, &rsize,
3697                            &rdata);
3698         doclearvlist(vl);
3699         if (qres)
3700                 return;         /* error msg already displayed */
3701
3702         /*
3703          * iterate over the response variables filling vdc_table with
3704          * the retrieved values.
3705          */
3706         while (nextvar(&rsize, &rdata, &tag, &val)) {
3707                 if (NULL == val)
3708                         continue;
3709                 n = 0;
3710                 for (pvdc = table; pvdc->tag != NULL; pvdc++) {
3711                         len = strlen(pvdc->tag);
3712                         if (strncmp(tag, pvdc->tag, len))
3713                                 continue;
3714                         if (NTP_ADD != pvdc->type) {
3715                                 if ('\0' != tag[len])
3716                                         continue;
3717                                 break;
3718                         }
3719                         match = FALSE;
3720                         for (n = 0; n < COUNTOF(suf); n++) {
3721                                 if (strcmp(tag + len, suf[n]))
3722                                         continue;
3723                                 match = TRUE;
3724                                 break;
3725                         }
3726                         if (match)
3727                                 break;
3728                 }
3729                 if (NULL == pvdc->tag)
3730                         continue;
3731                 switch (pvdc->type) {
3732
3733                 case NTP_STR:
3734                         /* strip surrounding double quotes */
3735                         if ('"' == val[0]) {
3736                                 len = strlen(val);
3737                                 if (len > 0 && '"' == val[len - 1]) {
3738                                         val[len - 1] = '\0';
3739                                         val++;
3740                                 }
3741                         }
3742                         /* fallthru */
3743                 case NTP_MODE:  /* fallthru */
3744                 case NTP_2BIT:
3745                         pvdc->v.str = estrdup(val);
3746                         break;
3747
3748                 case NTP_LFP:
3749                         decodets(val, &pvdc->v.lfp);
3750                         break;
3751
3752                 case NTP_ADP:
3753                         if (!decodenetnum(val, &pvdc->v.sau))
3754                                 fprintf(stderr, "malformed %s=%s\n",
3755                                         pvdc->tag, val);
3756                         break;
3757
3758                 case NTP_ADD:
3759                         if (0 == n) {   /* adr */
3760                                 if (!decodenetnum(val, &pvdc->v.sau))
3761                                         fprintf(stderr,
3762                                                 "malformed %s=%s\n",
3763                                                 pvdc->tag, val);
3764                         } else {        /* port */
3765                                 if (atouint(val, &ul))
3766                                         SET_PORT(&pvdc->v.sau,
3767                                                  (u_short)ul);
3768                         }
3769                         break;
3770                 }
3771         }
3772
3773         /* and display */
3774         if (decodestatus) {
3775                 vtype = (0 == as)
3776                             ? TYPE_SYS
3777                             : TYPE_PEER;
3778                 fprintf(fp, "associd=%u status=%04x %s,\n", as, rstatus,
3779                         statustoa(vtype, rstatus));
3780         }
3781
3782         for (pvdc = table; pvdc->tag != NULL; pvdc++) {
3783                 switch (pvdc->type) {
3784
3785                 case NTP_STR:
3786                         if (pvdc->v.str != NULL) {
3787                                 fprintf(fp, "%s  %s\n", pvdc->display,
3788                                         pvdc->v.str);
3789                                 free(pvdc->v.str);
3790                                 pvdc->v.str = NULL;
3791                         }
3792                         break;
3793
3794                 case NTP_ADD:   /* fallthru */
3795                 case NTP_ADP:
3796                         fprintf(fp, "%s  %s\n", pvdc->display,
3797                                 nntohostp(&pvdc->v.sau));
3798                         break;
3799
3800                 case NTP_LFP:
3801                         fprintf(fp, "%s  %s\n", pvdc->display,
3802                                 prettydate(&pvdc->v.lfp));
3803                         break;
3804
3805                 case NTP_MODE:
3806                         atouint(pvdc->v.str, &ul);
3807                         fprintf(fp, "%s  %s\n", pvdc->display,
3808                                 modetoa((int)ul));
3809                         break;
3810
3811                 case NTP_2BIT:
3812                         atouint(pvdc->v.str, &ul);
3813                         fprintf(fp, "%s  %s\n", pvdc->display,
3814                                 leapbits[ul & 0x3]);
3815                         break;
3816
3817                 default:
3818                         fprintf(stderr, "unexpected vdc type %d for %s\n",
3819                                 pvdc->type, pvdc->tag);
3820                         break;
3821                 }
3822         }
3823 }
3824
3825
3826 /*
3827  * sysstats - implements ntpq -c sysstats modeled on ntpdc -c sysstats
3828  */
3829 static void
3830 sysstats(
3831         struct parse *pcmd,
3832         FILE *fp
3833         )
3834 {
3835     static vdc sysstats_vdc[] = {
3836         VDC_INIT("ss_uptime",           "uptime:               ", NTP_STR),
3837         VDC_INIT("ss_reset",            "sysstats reset:       ", NTP_STR),
3838         VDC_INIT("ss_received",         "packets received:     ", NTP_STR),
3839         VDC_INIT("ss_thisver",          "current version:      ", NTP_STR),
3840         VDC_INIT("ss_oldver",           "older version:        ", NTP_STR),
3841         VDC_INIT("ss_badformat",        "bad length or format: ", NTP_STR),
3842         VDC_INIT("ss_badauth",          "authentication failed:", NTP_STR),
3843         VDC_INIT("ss_declined",         "declined:             ", NTP_STR),
3844         VDC_INIT("ss_restricted",       "restricted:           ", NTP_STR),
3845         VDC_INIT("ss_limited",          "rate limited:         ", NTP_STR),
3846         VDC_INIT("ss_kodsent",          "KoD responses:        ", NTP_STR),
3847         VDC_INIT("ss_processed",        "processed for time:   ", NTP_STR),
3848         VDC_INIT(NULL,                  NULL,                     0)
3849     };
3850
3851         collect_display_vdc(0, sysstats_vdc, FALSE, fp);
3852 }
3853
3854
3855 /*
3856  * sysinfo - modeled on ntpdc's sysinfo
3857  */
3858 static void
3859 sysinfo(
3860         struct parse *pcmd,
3861         FILE *fp
3862         )
3863 {
3864     static vdc sysinfo_vdc[] = {
3865         VDC_INIT("peeradr",             "system peer:      ", NTP_ADP),
3866         VDC_INIT("peermode",            "system peer mode: ", NTP_MODE),
3867         VDC_INIT("leap",                "leap indicator:   ", NTP_2BIT),
3868         VDC_INIT("stratum",             "stratum:          ", NTP_STR),
3869         VDC_INIT("precision",           "log2 precision:   ", NTP_STR),
3870         VDC_INIT("rootdelay",           "root delay:       ", NTP_STR),
3871         VDC_INIT("rootdisp",            "root dispersion:  ", NTP_STR),
3872         VDC_INIT("refid",               "reference ID:     ", NTP_STR),
3873         VDC_INIT("reftime",             "reference time:   ", NTP_LFP),
3874         VDC_INIT("sys_jitter",          "system jitter:    ", NTP_STR),
3875         VDC_INIT("clk_jitter",          "clock jitter:     ", NTP_STR),
3876         VDC_INIT("clk_wander",          "clock wander:     ", NTP_STR),
3877         VDC_INIT("bcastdelay",          "broadcast delay:  ", NTP_STR),
3878         VDC_INIT("authdelay",           "symm. auth. delay:", NTP_STR),
3879         VDC_INIT(NULL,                  NULL,                 0)
3880     };
3881
3882         collect_display_vdc(0, sysinfo_vdc, TRUE, fp);
3883 }
3884
3885
3886 /*
3887  * kerninfo - modeled on ntpdc's kerninfo
3888  */
3889 static void
3890 kerninfo(
3891         struct parse *pcmd,
3892         FILE *fp
3893         )
3894 {
3895     static vdc kerninfo_vdc[] = {
3896         VDC_INIT("koffset",             "pll offset:          ", NTP_STR),
3897         VDC_INIT("kfreq",               "pll frequency:       ", NTP_STR),
3898         VDC_INIT("kmaxerr",             "maximum error:       ", NTP_STR),
3899         VDC_INIT("kesterr",             "estimated error:     ", NTP_STR),
3900         VDC_INIT("kstflags",            "kernel status:       ", NTP_STR),
3901         VDC_INIT("ktimeconst",          "pll time constant:   ", NTP_STR),
3902         VDC_INIT("kprecis",             "precision:           ", NTP_STR),
3903         VDC_INIT("kfreqtol",            "frequency tolerance: ", NTP_STR),
3904         VDC_INIT("kppsfreq",            "pps frequency:       ", NTP_STR),
3905         VDC_INIT("kppsstab",            "pps stability:       ", NTP_STR),
3906         VDC_INIT("kppsjitter",          "pps jitter:          ", NTP_STR),
3907         VDC_INIT("kppscalibdur",        "calibration interval ", NTP_STR),
3908         VDC_INIT("kppscalibs",          "calibration cycles:  ", NTP_STR),
3909         VDC_INIT("kppsjitexc",          "jitter exceeded:     ", NTP_STR),
3910         VDC_INIT("kppsstbexc",          "stability exceeded:  ", NTP_STR),
3911         VDC_INIT("kppscaliberrs",       "calibration errors:  ", NTP_STR),
3912         VDC_INIT(NULL,                  NULL,                    0)
3913     };
3914
3915         collect_display_vdc(0, kerninfo_vdc, TRUE, fp);
3916 }
3917
3918
3919 /*
3920  * monstats - implements ntpq -c monstats
3921  */
3922 static void
3923 monstats(
3924         struct parse *pcmd,
3925         FILE *fp
3926         )
3927 {
3928     static vdc monstats_vdc[] = {
3929         VDC_INIT("mru_enabled", "enabled:            ", NTP_STR),
3930         VDC_INIT("mru_depth",           "addresses:          ", NTP_STR),
3931         VDC_INIT("mru_deepest", "peak addresses:     ", NTP_STR),
3932         VDC_INIT("mru_maxdepth",        "maximum addresses:  ", NTP_STR),
3933         VDC_INIT("mru_mindepth",        "reclaim above count:", NTP_STR),
3934         VDC_INIT("mru_maxage",          "reclaim older than: ", NTP_STR),
3935         VDC_INIT("mru_mem",             "kilobytes:          ", NTP_STR),
3936         VDC_INIT("mru_maxmem",          "maximum kilobytes:  ", NTP_STR),
3937         VDC_INIT(NULL,                  NULL,                   0)
3938     };
3939
3940         collect_display_vdc(0, monstats_vdc, FALSE, fp);
3941 }
3942
3943
3944 /*
3945  * iostats - ntpq -c iostats - network input and output counters
3946  */
3947 static void
3948 iostats(
3949         struct parse *pcmd,
3950         FILE *fp
3951         )
3952 {
3953     static vdc iostats_vdc[] = {
3954         VDC_INIT("iostats_reset",       "time since reset:     ", NTP_STR),
3955         VDC_INIT("total_rbuf",          "receive buffers:      ", NTP_STR),
3956         VDC_INIT("free_rbuf",           "free receive buffers: ", NTP_STR),
3957         VDC_INIT("used_rbuf",           "used receive buffers: ", NTP_STR),
3958         VDC_INIT("rbuf_lowater",        "low water refills:    ", NTP_STR),
3959         VDC_INIT("io_dropped",          "dropped packets:      ", NTP_STR),
3960         VDC_INIT("io_ignored",          "ignored packets:      ", NTP_STR),
3961         VDC_INIT("io_received",         "received packets:     ", NTP_STR),
3962         VDC_INIT("io_sent",             "packets sent:         ", NTP_STR),
3963         VDC_INIT("io_sendfailed",       "packet send failures: ", NTP_STR),
3964         VDC_INIT("io_wakeups",          "input wakeups:        ", NTP_STR),
3965         VDC_INIT("io_goodwakeups",      "useful input wakeups: ", NTP_STR),
3966         VDC_INIT(NULL,                  NULL,                     0)
3967     };
3968
3969         collect_display_vdc(0, iostats_vdc, FALSE, fp);
3970 }
3971
3972
3973 /*
3974  * timerstats - ntpq -c timerstats - interval timer counters
3975  */
3976 static void
3977 timerstats(
3978         struct parse *pcmd,
3979         FILE *fp
3980         )
3981 {
3982     static vdc timerstats_vdc[] = {
3983         VDC_INIT("timerstats_reset",    "time since reset:  ", NTP_STR),
3984         VDC_INIT("timer_overruns",      "timer overruns:    ", NTP_STR),
3985         VDC_INIT("timer_xmts",          "calls to transmit: ", NTP_STR),
3986         VDC_INIT(NULL,                  NULL,                  0)
3987     };
3988
3989         collect_display_vdc(0, timerstats_vdc, FALSE, fp);
3990 }
3991
3992
3993 /*
3994  * authinfo - implements ntpq -c authinfo
3995  */
3996 static void
3997 authinfo(
3998         struct parse *pcmd,
3999         FILE *fp
4000         )
4001 {
4002     static vdc authinfo_vdc[] = {
4003         VDC_INIT("authreset",           "time since reset:", NTP_STR),
4004         VDC_INIT("authkeys",            "stored keys:     ", NTP_STR),
4005         VDC_INIT("authfreek",           "free keys:       ", NTP_STR),
4006         VDC_INIT("authklookups",        "key lookups:     ", NTP_STR),
4007         VDC_INIT("authknotfound",       "keys not found:  ", NTP_STR),
4008         VDC_INIT("authkuncached",       "uncached keys:   ", NTP_STR),
4009         VDC_INIT("authkexpired",        "expired keys:    ", NTP_STR),
4010         VDC_INIT("authencrypts",        "encryptions:     ", NTP_STR),
4011         VDC_INIT("authdecrypts",        "decryptions:     ", NTP_STR),
4012         VDC_INIT(NULL,                  NULL,                0)
4013     };
4014
4015         collect_display_vdc(0, authinfo_vdc, FALSE, fp);
4016 }
4017
4018
4019 /*
4020  * pstats - show statistics for a peer
4021  */
4022 static void
4023 pstats(
4024         struct parse *pcmd,
4025         FILE *fp
4026         )
4027 {
4028     static vdc pstats_vdc[] = {
4029         VDC_INIT("src",         "remote host:         ", NTP_ADD),
4030         VDC_INIT("dst",         "local address:       ", NTP_ADD),
4031         VDC_INIT("timerec",     "time last received:  ", NTP_STR),
4032         VDC_INIT("timer",       "time until next send:", NTP_STR),
4033         VDC_INIT("timereach",   "reachability change: ", NTP_STR),
4034         VDC_INIT("sent",        "packets sent:        ", NTP_STR),
4035         VDC_INIT("received",    "packets received:    ", NTP_STR),
4036         VDC_INIT("badauth",     "bad authentication:  ", NTP_STR),
4037         VDC_INIT("bogusorg",    "bogus origin:        ", NTP_STR),
4038         VDC_INIT("oldpkt",      "duplicate:           ", NTP_STR),
4039         VDC_INIT("seldisp",     "bad dispersion:      ", NTP_STR),
4040         VDC_INIT("selbroken",   "bad reference time:  ", NTP_STR),
4041         VDC_INIT("candidate",   "candidate order:     ", NTP_STR),
4042         VDC_INIT(NULL,          NULL,                    0)
4043     };
4044         associd_t associd;
4045
4046         associd = checkassocid(pcmd->argval[0].uval);
4047         if (0 == associd)
4048                 return;
4049
4050         collect_display_vdc(associd, pstats_vdc, TRUE, fp);
4051 }