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                                 have_da_rid = TRUE;
1684                                 drlen = strlen(value);
1685                                 if (0 == drlen) {
1686                                         dstadr_refid = "";
1687                                 } else if (drlen <= 4) {
1688                                         ZERO(u32);
1689                                         memcpy(&u32, value, drlen);
1690                                         dstadr_refid = refid_str(u32, 1);
1691                                 } else if (decodenetnum(value, &refidadr)) {
1692                                         if (SOCK_UNSPEC(&refidadr))
1693                                                 dstadr_refid = "0.0.0.0";
1694                                         else if (ISREFCLOCKADR(&refidadr))
1695                                                 dstadr_refid =
1696                                                     refnumtoa(&refidadr);
1697                                         else
1698                                                 dstadr_refid =
1699                                                     stoa(&refidadr);
1700                                 } else {
1701                                         have_da_rid = FALSE;
1702                                 }
1703                         } else if (pvl == apeervarlist) {
1704                                 have_da_rid = TRUE;
1705                                 drlen = strlen(value);
1706                                 if (0 == drlen) {
1707                                         dstadr_refid = "";
1708                                 } else if (drlen <= 4) {
1709                                         ZERO(u32);
1710                                         memcpy(&u32, value, drlen);
1711                                         dstadr_refid = refid_str(u32, 1);
1712                                         //fprintf(stderr, "apeervarlist S1 refid: value=<%s>\n", value);
1713                                 } else if (decodenetnum(value, &refidadr)) {
1714                                         if (SOCK_UNSPEC(&refidadr))
1715                                                 dstadr_refid = "0.0.0.0";
1716                                         else if (ISREFCLOCKADR(&refidadr))
1717                                                 dstadr_refid =
1718                                                     refnumtoa(&refidadr);
1719                                         else {
1720                                                 char *buf = emalloc(10);
1721                                                 int i = ntohl(refidadr.sa4.sin_addr.s_addr);
1722
1723                                                 snprintf(buf, 10,
1724                                                         "%0x", i);
1725                                                 dstadr_refid = buf;
1726                                         //fprintf(stderr, "apeervarlist refid: value=<%x>\n", i);
1727                                         }
1728                                         //fprintf(stderr, "apeervarlist refid: value=<%s>\n", value);
1729                                 } else {
1730                                         have_da_rid = FALSE;
1731                                 }
1732                         }
1733                 } else if (!strcmp("stratum", name)) {
1734                         decodeuint(value, &stratum);
1735                 } else if (!strcmp("hpoll", name)) {
1736                         if (decodeint(value, &hpoll) && hpoll < 0)
1737                                 hpoll = NTP_MINPOLL;
1738                 } else if (!strcmp("ppoll", name)) {
1739                         if (decodeint(value, &ppoll) && ppoll < 0)
1740                                 ppoll = NTP_MINPOLL;
1741                 } else if (!strcmp("reach", name)) {
1742                         decodeuint(value, &reach);
1743                 } else if (!strcmp("delay", name)) {
1744                         decodetime(value, &estdelay);
1745                 } else if (!strcmp("offset", name)) {
1746                         decodetime(value, &estoffset);
1747                 } else if (!strcmp("jitter", name)) {
1748                         if ((pvl == peervarlist || pvl == apeervarlist)
1749                             && decodetime(value, &estjitter))
1750                                 have_jitter = 1;
1751                 } else if (!strcmp("rootdisp", name) ||
1752                            !strcmp("dispersion", name)) {
1753                         decodetime(value, &estdisp);
1754                 } else if (!strcmp("rec", name)) {
1755                         decodets(value, &rec);
1756                 } else if (!strcmp("srcport", name) ||
1757                            !strcmp("peerport", name)) {
1758                         decodeuint(value, &srcport);
1759                 } else if (!strcmp("reftime", name)) {
1760                         if (!decodets(value, &reftime))
1761                                 L_CLR(&reftime);
1762                 } else {
1763                         // fprintf(stderr, "UNRECOGNIZED name=%s ", name);
1764                 }
1765         }
1766
1767         /*
1768          * hmode gives the best guidance for the t column.  If the response
1769          * did not include hmode we'll use the old decodeaddrtype() result.
1770          */
1771         switch (hmode) {
1772
1773         case MODE_BCLIENT:
1774                 /* broadcastclient or multicastclient */
1775                 type = 'b';
1776                 break;
1777
1778         case MODE_BROADCAST:
1779                 /* broadcast or multicast server */
1780                 if (IS_MCAST(&srcadr))
1781                         type = 'M';
1782                 else
1783                         type = 'B';
1784                 break;
1785
1786         case MODE_CLIENT:
1787                 if (ISREFCLOCKADR(&srcadr))
1788                         type = 'l';     /* local refclock*/
1789                 else if (SOCK_UNSPEC(&srcadr))
1790                         type = 'p';     /* pool */
1791                 else if (IS_MCAST(&srcadr))
1792                         type = 'a';     /* manycastclient */
1793                 else
1794                         type = 'u';     /* unicast */
1795                 break;
1796
1797         case MODE_ACTIVE:
1798                 type = 's';             /* symmetric active */
1799                 break;                  /* configured */
1800
1801         case MODE_PASSIVE:
1802                 type = 'S';             /* symmetric passive */
1803                 break;                  /* ephemeral */
1804         }
1805
1806         /*
1807          * Got everything, format the line
1808          */
1809         poll_sec = 1 << min(ppoll, hpoll);
1810         if (pktversion > NTP_OLDVERSION)
1811                 c = flash3[CTL_PEER_STATVAL(rstatus) & 0x7];
1812         else
1813                 c = flash2[CTL_PEER_STATVAL(rstatus) & 0x3];
1814         if (numhosts > 1) {
1815                 if ((pvl == peervarlist || pvl == apeervarlist)
1816                     && have_dstadr) {
1817                         serverlocal = nntohost_col(&dstadr,
1818                             (size_t)min(LIB_BUFLENGTH - 1, maxhostlen),
1819                             TRUE);
1820                 } else {
1821                         if (currenthostisnum)
1822                                 serverlocal = trunc_left(currenthost,
1823                                                          maxhostlen);
1824                         else
1825                                 serverlocal = currenthost;
1826                 }
1827                 fprintf(fp, "%-*s ", (int)maxhostlen, serverlocal);
1828         }
1829         if (AF_UNSPEC == af || AF(&srcadr) == af) {
1830                 if (!have_srchost)
1831                         strlcpy(clock_name, nntohost(&srcadr),
1832                                 sizeof(clock_name));
1833                 if (wideremote && 15 < strlen(clock_name))
1834                         fprintf(fp, "%c%s\n                 ", c, clock_name);
1835                 else
1836                         fprintf(fp, "%c%-15.15s ", c, clock_name);
1837                 if (!have_da_rid) {
1838                         drlen = 0;
1839                 } else {
1840                         drlen = strlen(dstadr_refid);
1841                         makeascii(drlen, dstadr_refid, fp);
1842                 }
1843                 if (pvl == apeervarlist) {
1844                         while (drlen++ < 9)
1845                                 fputc(' ', fp);
1846                         fprintf(fp, "%-6d", associd);
1847                 } else {
1848                         while (drlen++ < 15)
1849                                 fputc(' ', fp);
1850                 }
1851                 fprintf(fp,
1852                         " %2ld %c %4.4s %4.4s  %3lo  %7.7s %8.7s %7.7s\n",
1853                         stratum, type,
1854                         prettyinterval(whenbuf, sizeof(whenbuf),
1855                                        when(&ts, &rec, &reftime)),
1856                         prettyinterval(pollbuf, sizeof(pollbuf),
1857                                        (int)poll_sec),
1858                         reach, lfptoms(&estdelay, 3),
1859                         lfptoms(&estoffset, 3),
1860                         (have_jitter)
1861                             ? lfptoms(&estjitter, 3)
1862                             : lfptoms(&estdisp, 3));
1863                 return (1);
1864         }
1865         else
1866                 return(1);
1867 }
1868
1869
1870 /*
1871  * dogetpeers - given an association ID, read and print the spreadsheet
1872  *              peer variables.
1873  */
1874 static int
1875 dogetpeers(
1876         struct varlist *pvl,
1877         associd_t associd,
1878         FILE *fp,
1879         int af
1880         )
1881 {
1882         const char *datap;
1883         int res;
1884         size_t dsize;
1885         u_short rstatus;
1886
1887 #ifdef notdef
1888         res = doquerylist(pvl, CTL_OP_READVAR, associd, 0, &rstatus,
1889                           &dsize, &datap);
1890 #else
1891         /*
1892          * Damn fuzzballs
1893          */
1894         res = doquery(CTL_OP_READVAR, associd, 0, 0, NULL, &rstatus,
1895                           &dsize, &datap);
1896 #endif
1897
1898         if (res != 0)
1899                 return 0;
1900
1901         if (dsize == 0) {
1902                 if (numhosts > 1)
1903                         fprintf(stderr, "server=%s ", currenthost);
1904                 fprintf(stderr,
1905                         "***No information returned for association %u\n",
1906                         associd);
1907                 return 0;
1908         }
1909
1910         return doprintpeers(pvl, associd, (int)rstatus, dsize, datap,
1911                             fp, af);
1912 }
1913
1914
1915 /*
1916  * peers - print a peer spreadsheet
1917  */
1918 static void
1919 dopeers(
1920         int showall,
1921         FILE *fp,
1922         int af
1923         )
1924 {
1925         u_int           u;
1926         char            fullname[LENHOSTNAME];
1927         sockaddr_u      netnum;
1928         const char *    name_or_num;
1929         size_t          sl;
1930
1931         if (!dogetassoc(fp))
1932                 return;
1933
1934         for (u = 0; u < numhosts; u++) {
1935                 if (getnetnum(chosts[u].name, &netnum, fullname, af)) {
1936                         name_or_num = nntohost(&netnum);
1937                         sl = strlen(name_or_num);
1938                         maxhostlen = max(maxhostlen, sl);
1939                 }
1940         }
1941         if (numhosts > 1)
1942                 fprintf(fp, "%-*.*s ", (int)maxhostlen, (int)maxhostlen,
1943                         "server (local)");
1944         fprintf(fp,
1945                 "     remote           refid      st t when poll reach   delay   offset  jitter\n");
1946         if (numhosts > 1)
1947                 for (u = 0; u <= maxhostlen; u++)
1948                         fprintf(fp, "=");
1949         fprintf(fp,
1950                 "==============================================================================\n");
1951
1952         for (u = 0; u < numassoc; u++) {
1953                 if (!showall &&
1954                     !(CTL_PEER_STATVAL(assoc_cache[u].status)
1955                       & (CTL_PST_CONFIG|CTL_PST_REACH))) {
1956                         if (debug)
1957                                 fprintf(stderr, "eliding [%d]\n",
1958                                         (int)assoc_cache[u].assid);
1959                         continue;
1960                 }
1961                 if (!dogetpeers(peervarlist, (int)assoc_cache[u].assid,
1962                                 fp, af))
1963                         return;
1964         }
1965         return;
1966 }
1967
1968
1969 /*
1970  * doapeers - print a peer spreadsheet with assocIDs
1971  */
1972 static void
1973 doapeers(
1974         int showall,
1975         FILE *fp,
1976         int af
1977         )
1978 {
1979         u_int           u;
1980         char            fullname[LENHOSTNAME];
1981         sockaddr_u      netnum;
1982         const char *    name_or_num;
1983         size_t          sl;
1984
1985         if (!dogetassoc(fp))
1986                 return;
1987
1988         for (u = 0; u < numhosts; u++) {
1989                 if (getnetnum(chosts[u].name, &netnum, fullname, af)) {
1990                         name_or_num = nntohost(&netnum);
1991                         sl = strlen(name_or_num);
1992                         maxhostlen = max(maxhostlen, sl);
1993                 }
1994         }
1995         if (numhosts > 1)
1996                 fprintf(fp, "%-*.*s ", (int)maxhostlen, (int)maxhostlen,
1997                         "server (local)");
1998         fprintf(fp,
1999                 "     remote       refid   assid  st t when poll reach   delay   offset  jitter\n");
2000         if (numhosts > 1)
2001                 for (u = 0; u <= maxhostlen; u++)
2002                         fprintf(fp, "=");
2003         fprintf(fp,
2004                 "==============================================================================\n");
2005
2006         for (u = 0; u < numassoc; u++) {
2007                 if (!showall &&
2008                     !(CTL_PEER_STATVAL(assoc_cache[u].status)
2009                       & (CTL_PST_CONFIG|CTL_PST_REACH))) {
2010                         if (debug)
2011                                 fprintf(stderr, "eliding [%d]\n",
2012                                         (int)assoc_cache[u].assid);
2013                         continue;
2014                 }
2015                 if (!dogetpeers(apeervarlist, (int)assoc_cache[u].assid,
2016                                 fp, af))
2017                         return;
2018         }
2019         return;
2020 }
2021
2022
2023 /*
2024  * peers - print a peer spreadsheet
2025  */
2026 /*ARGSUSED*/
2027 static void
2028 peers(
2029         struct parse *pcmd,
2030         FILE *fp
2031         )
2032 {
2033         int af = 0;
2034
2035         if (pcmd->nargs == 1) {
2036                 if (pcmd->argval->ival == 6)
2037                         af = AF_INET6;
2038                 else
2039                         af = AF_INET;
2040         }
2041         dopeers(0, fp, af);
2042 }
2043
2044
2045 /*
2046  * apeers - print a peer spreadsheet, with assocIDs
2047  */
2048 /*ARGSUSED*/
2049 static void
2050 apeers(
2051         struct parse *pcmd,
2052         FILE *fp
2053         )
2054 {
2055         int af = 0;
2056
2057         if (pcmd->nargs == 1) {
2058                 if (pcmd->argval->ival == 6)
2059                         af = AF_INET6;
2060                 else
2061                         af = AF_INET;
2062         }
2063         doapeers(0, fp, af);
2064 }
2065
2066
2067 /*
2068  * lpeers - print a peer spreadsheet including all fuzzball peers
2069  */
2070 /*ARGSUSED*/
2071 static void
2072 lpeers(
2073         struct parse *pcmd,
2074         FILE *fp
2075         )
2076 {
2077         int af = 0;
2078
2079         if (pcmd->nargs == 1) {
2080                 if (pcmd->argval->ival == 6)
2081                         af = AF_INET6;
2082                 else
2083                         af = AF_INET;
2084         }
2085         dopeers(1, fp, af);
2086 }
2087
2088
2089 /*
2090  * opeers - print a peer spreadsheet
2091  */
2092 static void
2093 doopeers(
2094         int showall,
2095         FILE *fp,
2096         int af
2097         )
2098 {
2099         u_int i;
2100         char fullname[LENHOSTNAME];
2101         sockaddr_u netnum;
2102
2103         if (!dogetassoc(fp))
2104                 return;
2105
2106         for (i = 0; i < numhosts; ++i) {
2107                 if (getnetnum(chosts[i].name, &netnum, fullname, af))
2108                         if (strlen(fullname) > maxhostlen)
2109                                 maxhostlen = strlen(fullname);
2110         }
2111         if (numhosts > 1)
2112                 fprintf(fp, "%-*.*s ", (int)maxhostlen, (int)maxhostlen,
2113                         "server");
2114         fprintf(fp,
2115             "     remote           local      st t when poll reach   delay   offset    disp\n");
2116         if (numhosts > 1)
2117                 for (i = 0; i <= maxhostlen; ++i)
2118                         fprintf(fp, "=");
2119         fprintf(fp,
2120             "==============================================================================\n");
2121
2122         for (i = 0; i < numassoc; i++) {
2123                 if (!showall &&
2124                     !(CTL_PEER_STATVAL(assoc_cache[i].status) &
2125                       (CTL_PST_CONFIG | CTL_PST_REACH)))
2126                         continue;
2127                 if (!dogetpeers(opeervarlist, assoc_cache[i].assid, fp, af))
2128                         return;
2129         }
2130         return;
2131 }
2132
2133
2134 /*
2135  * opeers - print a peer spreadsheet the old way
2136  */
2137 /*ARGSUSED*/
2138 static void
2139 opeers(
2140         struct parse *pcmd,
2141         FILE *fp
2142         )
2143 {
2144         int af = 0;
2145
2146         if (pcmd->nargs == 1) {
2147                 if (pcmd->argval->ival == 6)
2148                         af = AF_INET6;
2149                 else
2150                         af = AF_INET;
2151         }
2152         doopeers(0, fp, af);
2153 }
2154
2155
2156 /*
2157  * lopeers - print a peer spreadsheet including all fuzzball peers
2158  */
2159 /*ARGSUSED*/
2160 static void
2161 lopeers(
2162         struct parse *pcmd,
2163         FILE *fp
2164         )
2165 {
2166         int af = 0;
2167
2168         if (pcmd->nargs == 1) {
2169                 if (pcmd->argval->ival == 6)
2170                         af = AF_INET6;
2171                 else
2172                         af = AF_INET;
2173         }
2174         doopeers(1, fp, af);
2175 }
2176
2177
2178 /*
2179  * config - send a configuration command to a remote host
2180  */
2181 static void
2182 config (
2183         struct parse *pcmd,
2184         FILE *fp
2185         )
2186 {
2187         const char *cfgcmd;
2188         u_short rstatus;
2189         size_t rsize;
2190         const char *rdata;
2191         char *resp;
2192         int res;
2193         int col;
2194         int i;
2195
2196         cfgcmd = pcmd->argval[0].string;
2197
2198         if (debug > 2)
2199                 fprintf(stderr,
2200                         "In Config\n"
2201                         "Keyword = %s\n"
2202                         "Command = %s\n", pcmd->keyword, cfgcmd);
2203
2204         res = doquery(CTL_OP_CONFIGURE, 0, 1,
2205                       strlen(cfgcmd), cfgcmd,
2206                       &rstatus, &rsize, &rdata);
2207
2208         if (res != 0)
2209                 return;
2210
2211         if (rsize > 0 && '\n' == rdata[rsize - 1])
2212                 rsize--;
2213
2214         resp = emalloc(rsize + 1);
2215         memcpy(resp, rdata, rsize);
2216         resp[rsize] = '\0';
2217
2218         col = -1;
2219         if (1 == sscanf(resp, "column %d syntax error", &col)
2220             && col >= 0 && (size_t)col <= strlen(cfgcmd) + 1) {
2221                 if (interactive) {
2222                         printf("______");       /* "ntpq> " */
2223                         printf("________");     /* ":config " */
2224                 } else
2225                         printf("%s\n", cfgcmd);
2226                 for (i = 1; i < col; i++)
2227                         putchar('_');
2228                 printf("^\n");
2229         }
2230         printf("%s\n", resp);
2231         free(resp);
2232 }
2233
2234
2235 /*
2236  * config_from_file - remotely configure an ntpd daemon using the
2237  * specified configuration file
2238  * SK: This function is a kludge at best and is full of bad design
2239  * bugs:
2240  * 1. ntpq uses UDP, which means that there is no guarantee of in-order,
2241  *    error-free delivery.
2242  * 2. The maximum length of a packet is constrained, and as a result, the
2243  *    maximum length of a line in a configuration file is constrained.
2244  *    Longer lines will lead to unpredictable results.
2245  * 3. Since this function is sending a line at a time, we can't update
2246  *    the control key through the configuration file (YUCK!!)
2247  */
2248 static void
2249 config_from_file (
2250         struct parse *pcmd,
2251         FILE *fp
2252         )
2253 {
2254         u_short rstatus;
2255         size_t rsize;
2256         const char *rdata;
2257         int res;
2258         FILE *config_fd;
2259         char config_cmd[MAXLINE];
2260         size_t config_len;
2261         int i;
2262         int retry_limit;
2263
2264         if (debug > 2)
2265                 fprintf(stderr,
2266                         "In Config\n"
2267                         "Keyword = %s\n"
2268                         "Filename = %s\n", pcmd->keyword,
2269                         pcmd->argval[0].string);
2270
2271         config_fd = fopen(pcmd->argval[0].string, "r");
2272         if (NULL == config_fd) {
2273                 printf("ERROR!! Couldn't open file: %s\n",
2274                        pcmd->argval[0].string);
2275                 return;
2276         }
2277
2278         printf("Sending configuration file, one line at a time.\n");
2279         i = 0;
2280         while (fgets(config_cmd, MAXLINE, config_fd) != NULL) {
2281                 config_len = strlen(config_cmd);
2282                 /* ensure even the last line has newline, if possible */
2283                 if (config_len > 0 &&
2284                     config_len + 2 < sizeof(config_cmd) &&
2285                     '\n' != config_cmd[config_len - 1])
2286                         config_cmd[config_len++] = '\n';
2287                 ++i;
2288                 retry_limit = 2;
2289                 do
2290                         res = doquery(CTL_OP_CONFIGURE, 0, 1,
2291                                       strlen(config_cmd), config_cmd,
2292                                       &rstatus, &rsize, &rdata);
2293                 while (res != 0 && retry_limit--);
2294                 if (res != 0) {
2295                         printf("Line No: %d query failed: %s", i,
2296                                config_cmd);
2297                         printf("Subsequent lines not sent.\n");
2298                         fclose(config_fd);
2299                         return;
2300                 }
2301
2302                 if (rsize > 0 && '\n' == rdata[rsize - 1])
2303                         rsize--;
2304                 if (rsize > 0 && '\r' == rdata[rsize - 1])
2305                         rsize--;
2306                 printf("Line No: %d %.*s: %s", i, (int)rsize, rdata, /* cast is wobbly */
2307                        config_cmd);
2308         }
2309         printf("Done sending file\n");
2310         fclose(config_fd);
2311 }
2312
2313
2314 static int
2315 fetch_nonce(
2316         char *  nonce,
2317         size_t  cb_nonce
2318         )
2319 {
2320         const char      nonce_eq[] = "nonce=";
2321         int             qres;
2322         u_short         rstatus;
2323         size_t          rsize;
2324         const char *    rdata;
2325         size_t          chars;
2326
2327         /*
2328          * Retrieve a nonce specific to this client to demonstrate to
2329          * ntpd that we're capable of receiving responses to our source
2330          * IP address, and thereby unlikely to be forging the source.
2331          */
2332         qres = doquery(CTL_OP_REQ_NONCE, 0, 0, 0, NULL, &rstatus,
2333                        &rsize, &rdata);
2334         if (qres) {
2335                 fprintf(stderr, "nonce request failed\n");
2336                 return FALSE;
2337         }
2338
2339         if ((size_t)rsize <= sizeof(nonce_eq) - 1 ||
2340             strncmp(rdata, nonce_eq, sizeof(nonce_eq) - 1)) {
2341                 fprintf(stderr, "unexpected nonce response format: %.*s\n",
2342                         (int)rsize, rdata); /* cast is wobbly */
2343                 return FALSE;
2344         }
2345         chars = rsize - (sizeof(nonce_eq) - 1);
2346         if (chars >= (int)cb_nonce)
2347                 return FALSE;
2348         memcpy(nonce, rdata + sizeof(nonce_eq) - 1, chars);
2349         nonce[chars] = '\0';
2350         while (chars > 0 &&
2351                ('\r' == nonce[chars - 1] || '\n' == nonce[chars - 1])) {
2352                 chars--;
2353                 nonce[chars] = '\0';
2354         }
2355
2356         return TRUE;
2357 }
2358
2359
2360 /*
2361  * add_mru      Add and entry to mru list, hash table, and allocate
2362  *              and return a replacement.
2363  *              This is a helper for collect_mru_list().
2364  */
2365 static mru *
2366 add_mru(
2367         mru *add
2368         )
2369 {
2370         u_short hash;
2371         mru *mon;
2372         mru *unlinked;
2373
2374
2375         hash = NTP_HASH_ADDR(&add->addr);
2376         /* see if we have it among previously received entries */
2377         for (mon = hash_table[hash]; mon != NULL; mon = mon->hlink)
2378                 if (SOCK_EQ(&mon->addr, &add->addr))
2379                         break;
2380         if (mon != NULL) {
2381                 if (!L_ISGEQ(&add->first, &mon->first)) {
2382                         fprintf(stderr,
2383                                 "add_mru duplicate %s new first ts %08x.%08x precedes prior %08x.%08x\n",
2384                                 sptoa(&add->addr), add->last.l_ui,
2385                                 add->last.l_uf, mon->last.l_ui,
2386                                 mon->last.l_uf);
2387                         exit(1);
2388                 }
2389                 UNLINK_DLIST(mon, mlink);
2390                 UNLINK_SLIST(unlinked, hash_table[hash], mon, hlink, mru);
2391                 INSIST(unlinked == mon);
2392                 mru_dupes++;
2393                 TRACE(2, ("(updated from %08x.%08x) ", mon->last.l_ui,
2394                       mon->last.l_uf));
2395         }
2396         LINK_DLIST(mru_list, add, mlink);
2397         LINK_SLIST(hash_table[hash], add, hlink);
2398         TRACE(2, ("add_mru %08x.%08x c %d m %d v %d rest %x first %08x.%08x %s\n",
2399               add->last.l_ui, add->last.l_uf, add->count,
2400               (int)add->mode, (int)add->ver, (u_int)add->rs,
2401               add->first.l_ui, add->first.l_uf, sptoa(&add->addr)));
2402         /* if we didn't update an existing entry, alloc replacement */
2403         if (NULL == mon) {
2404                 mon = emalloc(sizeof(*mon));
2405                 mru_count++;
2406         }
2407         ZERO(*mon);
2408
2409         return mon;
2410 }
2411
2412
2413 /* MGOT macro is specific to collect_mru_list() */
2414 #define MGOT(bit)                               \
2415         do {                                    \
2416                 got |= (bit);                   \
2417                 if (MRU_GOT_ALL == got) {       \
2418                         got = 0;                \
2419                         mon = add_mru(mon);     \
2420                         ci++;                   \
2421                 }                               \
2422         } while (0)
2423
2424
2425 int
2426 mrulist_ctrl_c_hook(void)
2427 {
2428         mrulist_interrupted = TRUE;
2429         return TRUE;
2430 }
2431
2432
2433 static int
2434 collect_mru_list(
2435         const char *    parms,
2436         l_fp *          pnow
2437         )
2438 {
2439         const u_int sleep_msecs = 5;
2440         static int ntpd_row_limit = MRU_ROW_LIMIT;
2441         int c_mru_l_rc;         /* this function's return code */
2442         u_char got;             /* MRU_GOT_* bits */
2443         time_t next_report;
2444         size_t cb;
2445         mru *mon;
2446         mru *head;
2447         mru *recent;
2448         int list_complete;
2449         char nonce[128];
2450         char buf[128];
2451         char req_buf[CTL_MAX_DATA_LEN];
2452         char *req;
2453         char *req_end;
2454         size_t chars;
2455         int qres;
2456         u_short rstatus;
2457         size_t rsize;
2458         const char *rdata;
2459         int limit;
2460         int frags;
2461         int cap_frags;
2462         char *tag;
2463         char *val;
2464         int si;         /* server index in response */
2465         int ci;         /* client (our) index for validation */
2466         int ri;         /* request index (.# suffix) */
2467         int mv;
2468         l_fp newest;
2469         l_fp last_older;
2470         sockaddr_u addr_older;
2471         int have_now;
2472         int have_addr_older;
2473         int have_last_older;
2474         u_int restarted_count;
2475         u_int nonce_uses;
2476         u_short hash;
2477         mru *unlinked;
2478
2479         if (!fetch_nonce(nonce, sizeof(nonce)))
2480                 return FALSE;
2481
2482         nonce_uses = 0;
2483         restarted_count = 0;
2484         mru_count = 0;
2485         INIT_DLIST(mru_list, mlink);
2486         cb = NTP_HASH_SIZE * sizeof(*hash_table);
2487         INSIST(NULL == hash_table);
2488         hash_table = emalloc_zero(cb);
2489
2490         c_mru_l_rc = FALSE;
2491         list_complete = FALSE;
2492         have_now = FALSE;
2493         cap_frags = TRUE;
2494         got = 0;
2495         ri = 0;
2496         cb = sizeof(*mon);
2497         mon = emalloc_zero(cb);
2498         ZERO(*pnow);
2499         ZERO(last_older);
2500         next_report = time(NULL) + MRU_REPORT_SECS;
2501
2502         limit = min(3 * MAXFRAGS, ntpd_row_limit);
2503         frags = MAXFRAGS;
2504         snprintf(req_buf, sizeof(req_buf), "nonce=%s, frags=%d%s",
2505                  nonce, frags, parms);
2506         nonce_uses++;
2507
2508         while (TRUE) {
2509                 if (debug)
2510                         fprintf(stderr, "READ_MRU parms: %s\n", req_buf);
2511
2512                 qres = doqueryex(CTL_OP_READ_MRU, 0, 0,
2513                                  strlen(req_buf), req_buf,
2514                                  &rstatus, &rsize, &rdata, TRUE);
2515
2516                 if (CERR_UNKNOWNVAR == qres && ri > 0) {
2517                         /*
2518                          * None of the supplied prior entries match, so
2519                          * toss them from our list and try again.
2520                          */
2521                         if (debug)
2522                                 fprintf(stderr,
2523                                         "no overlap between %d prior entries and server MRU list\n",
2524                                         ri);
2525                         while (ri--) {
2526                                 recent = HEAD_DLIST(mru_list, mlink);
2527                                 INSIST(recent != NULL);
2528                                 if (debug)
2529                                         fprintf(stderr,
2530                                                 "tossing prior entry %s to resync\n",
2531                                                 sptoa(&recent->addr));
2532                                 UNLINK_DLIST(recent, mlink);
2533                                 hash = NTP_HASH_ADDR(&recent->addr);
2534                                 UNLINK_SLIST(unlinked, hash_table[hash],
2535                                              recent, hlink, mru);
2536                                 INSIST(unlinked == recent);
2537                                 free(recent);
2538                                 mru_count--;
2539                         }
2540                         if (NULL == HEAD_DLIST(mru_list, mlink)) {
2541                                 restarted_count++;
2542                                 if (restarted_count > 8) {
2543                                         fprintf(stderr,
2544                                                 "Giving up after 8 restarts from the beginning.\n"
2545                                                 "With high-traffic NTP servers, this can occur if the\n"
2546                                                 "MRU list is limited to less than about 16 seconds' of\n"
2547                                                 "entries.  See the 'mru' ntp.conf directive to adjust.\n");
2548                                         goto cleanup_return;
2549                                 }
2550                                 if (debug)
2551                                         fprintf(stderr,
2552                                                 "--->   Restarting from the beginning, retry #%u\n",
2553                                                 restarted_count);
2554                         }
2555                 } else if (CERR_UNKNOWNVAR == qres) {
2556                         fprintf(stderr,
2557                                 "CERR_UNKNOWNVAR from ntpd but no priors given.\n");
2558                         goto cleanup_return;
2559                 } else if (CERR_BADVALUE == qres) {
2560                         if (cap_frags) {
2561                                 cap_frags = FALSE;
2562                                 if (debug)
2563                                         fprintf(stderr,
2564                                                 "Reverted to row limit from fragments limit.\n");
2565                         } else {
2566                                 /* ntpd has lower cap on row limit */
2567                                 ntpd_row_limit--;
2568                                 limit = min(limit, ntpd_row_limit);
2569                                 if (debug)
2570                                         fprintf(stderr,
2571                                                 "Row limit reduced to %d following CERR_BADVALUE.\n",
2572                                                 limit);
2573                         }
2574                 } else if (ERR_INCOMPLETE == qres ||
2575                            ERR_TIMEOUT == qres) {
2576                         /*
2577                          * Reduce the number of rows/frags requested by
2578                          * half to recover from lost response fragments.
2579                          */
2580                         if (cap_frags) {
2581                                 frags = max(2, frags / 2);
2582                                 if (debug)
2583                                         fprintf(stderr,
2584                                                 "Frag limit reduced to %d following incomplete response.\n",
2585                                                 frags);
2586                         } else {
2587                                 limit = max(2, limit / 2);
2588                                 if (debug)
2589                                         fprintf(stderr,
2590                                                 "Row limit reduced to %d following incomplete response.\n",
2591                                                 limit);
2592                         }
2593                 } else if (qres) {
2594                         show_error_msg(qres, 0);
2595                         goto cleanup_return;
2596                 }
2597                 /*
2598                  * This is a cheap cop-out implementation of rawmode
2599                  * output for mrulist.  A better approach would be to
2600                  * dump similar output after the list is collected by
2601                  * ntpq with a continuous sequence of indexes.  This
2602                  * cheap approach has indexes resetting to zero for
2603                  * each query/response, and duplicates are not
2604                  * coalesced.
2605                  */
2606                 if (!qres && rawmode)
2607                         printvars(rsize, rdata, rstatus, TYPE_SYS, 1, stdout);
2608                 ci = 0;
2609                 have_addr_older = FALSE;
2610                 have_last_older = FALSE;
2611                 while (!qres && nextvar(&rsize, &rdata, &tag, &val)) {
2612                         if (debug > 1)
2613                                 fprintf(stderr, "nextvar gave: %s = %s\n",
2614                                         tag, val);
2615                         switch(tag[0]) {
2616
2617                         case 'a':
2618                                 if (!strcmp(tag, "addr.older")) {
2619                                         if (!have_last_older) {
2620                                                 fprintf(stderr,
2621                                                         "addr.older %s before last.older\n",
2622                                                         val);
2623                                                 goto cleanup_return;
2624                                         }
2625                                         if (!decodenetnum(val, &addr_older)) {
2626                                                 fprintf(stderr,
2627                                                         "addr.older %s garbled\n",
2628                                                         val);
2629                                                 goto cleanup_return;
2630                                         }
2631                                         hash = NTP_HASH_ADDR(&addr_older);
2632                                         for (recent = hash_table[hash];
2633                                              recent != NULL;
2634                                              recent = recent->hlink)
2635                                                 if (ADDR_PORT_EQ(
2636                                                       &addr_older,
2637                                                       &recent->addr))
2638                                                         break;
2639                                         if (NULL == recent) {
2640                                                 fprintf(stderr,
2641                                                         "addr.older %s not in hash table\n",
2642                                                         val);
2643                                                 goto cleanup_return;
2644                                         }
2645                                         if (!L_ISEQU(&last_older,
2646                                                      &recent->last)) {
2647                                                 fprintf(stderr,
2648                                                         "last.older %08x.%08x mismatches %08x.%08x expected.\n",
2649                                                         last_older.l_ui,
2650                                                         last_older.l_uf,
2651                                                         recent->last.l_ui,
2652                                                         recent->last.l_uf);
2653                                                 goto cleanup_return;
2654                                         }
2655                                         have_addr_older = TRUE;
2656                                 } else if (1 != sscanf(tag, "addr.%d", &si)
2657                                            || si != ci)
2658                                         goto nomatch;
2659                                 else if (decodenetnum(val, &mon->addr))
2660                                         MGOT(MRU_GOT_ADDR);
2661                                 break;
2662
2663                         case 'l':
2664                                 if (!strcmp(tag, "last.older")) {
2665                                         if ('0' != val[0] ||
2666                                             'x' != val[1] ||
2667                                             !hextolfp(val + 2, &last_older)) {
2668                                                 fprintf(stderr,
2669                                                         "last.older %s garbled\n",
2670                                                         val);
2671                                                 goto cleanup_return;
2672                                         }
2673                                         have_last_older = TRUE;
2674                                 } else if (!strcmp(tag, "last.newest")) {
2675                                         if (0 != got) {
2676                                                 fprintf(stderr,
2677                                                         "last.newest %s before complete row, got = 0x%x\n",
2678                                                         val, (u_int)got);
2679                                                 goto cleanup_return;
2680                                         }
2681                                         if (!have_now) {
2682                                                 fprintf(stderr,
2683                                                         "last.newest %s before now=\n",
2684                                                         val);
2685                                                 goto cleanup_return;
2686                                         }
2687                                         head = HEAD_DLIST(mru_list, mlink);
2688                                         if (NULL != head) {
2689                                                 if ('0' != val[0] ||
2690                                                     'x' != val[1] ||
2691                                                     !hextolfp(val + 2, &newest) ||
2692                                                     !L_ISEQU(&newest,
2693                                                              &head->last)) {
2694                                                         fprintf(stderr,
2695                                                                 "last.newest %s mismatches %08x.%08x",
2696                                                                 val,
2697                                                                 head->last.l_ui,
2698                                                                 head->last.l_uf);
2699                                                         goto cleanup_return;
2700                                                 }
2701                                         }
2702                                         list_complete = TRUE;
2703                                 } else if (1 != sscanf(tag, "last.%d", &si) ||
2704                                            si != ci || '0' != val[0] ||
2705                                            'x' != val[1] ||
2706                                            !hextolfp(val + 2, &mon->last)) {
2707                                         goto nomatch;
2708                                 } else {
2709                                         MGOT(MRU_GOT_LAST);
2710                                         /*
2711                                          * allow interrupted retrieval,
2712                                          * using most recent retrieved
2713                                          * entry's last seen timestamp
2714                                          * as the end of operation.
2715                                          */
2716                                         *pnow = mon->last;
2717                                 }
2718                                 break;
2719
2720                         case 'f':
2721                                 if (1 != sscanf(tag, "first.%d", &si) ||
2722                                     si != ci || '0' != val[0] ||
2723                                     'x' != val[1] ||
2724                                     !hextolfp(val + 2, &mon->first))
2725                                         goto nomatch;
2726                                 MGOT(MRU_GOT_FIRST);
2727                                 break;
2728
2729                         case 'n':
2730                                 if (!strcmp(tag, "nonce")) {
2731                                         strlcpy(nonce, val, sizeof(nonce));
2732                                         nonce_uses = 0;
2733                                         break; /* case */
2734                                 } else if (strcmp(tag, "now") ||
2735                                            '0' != val[0] ||
2736                                            'x' != val[1] ||
2737                                             !hextolfp(val + 2, pnow))
2738                                         goto nomatch;
2739                                 have_now = TRUE;
2740                                 break;
2741
2742                         case 'c':
2743                                 if (1 != sscanf(tag, "ct.%d", &si) ||
2744                                     si != ci ||
2745                                     1 != sscanf(val, "%d", &mon->count)
2746                                     || mon->count < 1)
2747                                         goto nomatch;
2748                                 MGOT(MRU_GOT_COUNT);
2749                                 break;
2750
2751                         case 'm':
2752                                 if (1 != sscanf(tag, "mv.%d", &si) ||
2753                                     si != ci ||
2754                                     1 != sscanf(val, "%d", &mv))
2755                                         goto nomatch;
2756                                 mon->mode = PKT_MODE(mv);
2757                                 mon->ver = PKT_VERSION(mv);
2758                                 MGOT(MRU_GOT_MV);
2759                                 break;
2760
2761                         case 'r':
2762                                 if (1 != sscanf(tag, "rs.%d", &si) ||
2763                                     si != ci ||
2764                                     1 != sscanf(val, "0x%hx", &mon->rs))
2765                                         goto nomatch;
2766                                 MGOT(MRU_GOT_RS);
2767                                 break;
2768
2769                         default:
2770                         nomatch:
2771                                 /* empty stmt */ ;
2772                                 /* ignore unknown tags */
2773                         }
2774                 }
2775                 if (have_now)
2776                         list_complete = TRUE;
2777                 if (list_complete) {
2778                         INSIST(0 == ri || have_addr_older);
2779                 }
2780                 if (mrulist_interrupted) {
2781                         printf("mrulist retrieval interrupted by operator.\n"
2782                                "Displaying partial client list.\n");
2783                         fflush(stdout);
2784                 }
2785                 if (list_complete || mrulist_interrupted) {
2786                         fprintf(stderr,
2787                                 "\rRetrieved %u unique MRU entries and %u updates.\n",
2788                                 mru_count, mru_dupes);
2789                         fflush(stderr);
2790                         break;
2791                 }
2792                 if (time(NULL) >= next_report) {
2793                         next_report += MRU_REPORT_SECS;
2794                         fprintf(stderr, "\r%u (%u updates) ", mru_count,
2795                                 mru_dupes);
2796                         fflush(stderr);
2797                 }
2798
2799                 /*
2800                  * Snooze for a bit between queries to let ntpd catch
2801                  * up with other duties.
2802                  */
2803 #ifdef SYS_WINNT
2804                 Sleep(sleep_msecs);
2805 #elif !defined(HAVE_NANOSLEEP)
2806                 sleep((sleep_msecs / 1000) + 1);
2807 #else
2808                 {
2809                         struct timespec interv = { 0,
2810                                                    1000 * sleep_msecs };
2811                         nanosleep(&interv, NULL);
2812                 }
2813 #endif
2814                 /*
2815                  * If there were no errors, increase the number of rows
2816                  * to a maximum of 3 * MAXFRAGS (the most packets ntpq
2817                  * can handle in one response), on the assumption that
2818                  * no less than 3 rows fit in each packet, capped at
2819                  * our best guess at the server's row limit.
2820                  */
2821                 if (!qres) {
2822                         if (cap_frags) {
2823                                 frags = min(MAXFRAGS, frags + 1);
2824                         } else {
2825                                 limit = min3(3 * MAXFRAGS,
2826                                              ntpd_row_limit,
2827                                              max(limit + 1,
2828                                                  limit * 33 / 32));
2829                         }
2830                 }
2831                 /*
2832                  * prepare next query with as many address and last-seen
2833                  * timestamps as will fit in a single packet.
2834                  */
2835                 req = req_buf;
2836                 req_end = req_buf + sizeof(req_buf);
2837 #define REQ_ROOM        (req_end - req)
2838                 snprintf(req, REQ_ROOM, "nonce=%s, %s=%d%s", nonce,
2839                          (cap_frags)
2840                              ? "frags"
2841                              : "limit",
2842                          (cap_frags)
2843                              ? frags
2844                              : limit,
2845                          parms);
2846                 req += strlen(req);
2847                 nonce_uses++;
2848                 if (nonce_uses >= 4) {
2849                         if (!fetch_nonce(nonce, sizeof(nonce)))
2850                                 goto cleanup_return;
2851                         nonce_uses = 0;
2852                 }
2853
2854
2855                 for (ri = 0, recent = HEAD_DLIST(mru_list, mlink);
2856                      recent != NULL;
2857                      ri++, recent = NEXT_DLIST(mru_list, recent, mlink)) {
2858
2859                         snprintf(buf, sizeof(buf),
2860                                  ", addr.%d=%s, last.%d=0x%08x.%08x",
2861                                  ri, sptoa(&recent->addr), ri,
2862                                  recent->last.l_ui, recent->last.l_uf);
2863                         chars = strlen(buf);
2864                         if (REQ_ROOM <= chars)
2865                                 break;
2866                         memcpy(req, buf, chars + 1);
2867                         req += chars;
2868                 }
2869         }
2870
2871         c_mru_l_rc = TRUE;
2872         goto retain_hash_table;
2873
2874 cleanup_return:
2875         free(hash_table);
2876         hash_table = NULL;
2877
2878 retain_hash_table:
2879         if (mon != NULL)
2880                 free(mon);
2881
2882         return c_mru_l_rc;
2883 }
2884
2885
2886 /*
2887  * qcmp_mru_addr - sort MRU entries by remote address.
2888  *
2889  * All IPv4 addresses sort before any IPv6, addresses are sorted by
2890  * value within address family.
2891  */
2892 static int
2893 qcmp_mru_addr(
2894         const void *v1,
2895         const void *v2
2896         )
2897 {
2898         const mru * const *     ppm1 = v1;
2899         const mru * const *     ppm2 = v2;
2900         const mru *             pm1;
2901         const mru *             pm2;
2902         u_short                 af1;
2903         u_short                 af2;
2904         size_t                  cmplen;
2905         size_t                  addr_off;
2906
2907         pm1 = *ppm1;
2908         pm2 = *ppm2;
2909
2910         af1 = AF(&pm1->addr);
2911         af2 = AF(&pm2->addr);
2912
2913         if (af1 != af2)
2914                 return (AF_INET == af1)
2915                            ? -1
2916                            : 1;
2917
2918         cmplen = SIZEOF_INADDR(af1);
2919         addr_off = (AF_INET == af1)
2920                       ? offsetof(struct sockaddr_in, sin_addr)
2921                       : offsetof(struct sockaddr_in6, sin6_addr);
2922
2923         return memcmp((const char *)&pm1->addr + addr_off,
2924                       (const char *)&pm2->addr + addr_off,
2925                       cmplen);
2926 }
2927
2928
2929 static int
2930 qcmp_mru_r_addr(
2931         const void *v1,
2932         const void *v2
2933         )
2934 {
2935         return -qcmp_mru_addr(v1, v2);
2936 }
2937
2938
2939 /*
2940  * qcmp_mru_count - sort MRU entries by times seen (hit count).
2941  */
2942 static int
2943 qcmp_mru_count(
2944         const void *v1,
2945         const void *v2
2946         )
2947 {
2948         const mru * const *     ppm1 = v1;
2949         const mru * const *     ppm2 = v2;
2950         const mru *             pm1;
2951         const mru *             pm2;
2952
2953         pm1 = *ppm1;
2954         pm2 = *ppm2;
2955
2956         return (pm1->count < pm2->count)
2957                    ? -1
2958                    : ((pm1->count == pm2->count)
2959                           ? 0
2960                           : 1);
2961 }
2962
2963
2964 static int
2965 qcmp_mru_r_count(
2966         const void *v1,
2967         const void *v2
2968         )
2969 {
2970         return -qcmp_mru_count(v1, v2);
2971 }
2972
2973
2974 /*
2975  * qcmp_mru_avgint - sort MRU entries by average interval.
2976  */
2977 static int
2978 qcmp_mru_avgint(
2979         const void *v1,
2980         const void *v2
2981         )
2982 {
2983         const mru * const *     ppm1 = v1;
2984         const mru * const *     ppm2 = v2;
2985         const mru *             pm1;
2986         const mru *             pm2;
2987         l_fp                    interval;
2988         double                  avg1;
2989         double                  avg2;
2990
2991         pm1 = *ppm1;
2992         pm2 = *ppm2;
2993
2994         interval = pm1->last;
2995         L_SUB(&interval, &pm1->first);
2996         LFPTOD(&interval, avg1);
2997         avg1 /= pm1->count;
2998
2999         interval = pm2->last;
3000         L_SUB(&interval, &pm2->first);
3001         LFPTOD(&interval, avg2);
3002         avg2 /= pm2->count;
3003
3004         if (avg1 < avg2)
3005                 return -1;
3006         else if (avg1 > avg2)
3007                 return 1;
3008
3009         /* secondary sort on lstint - rarely tested */
3010         if (L_ISEQU(&pm1->last, &pm2->last))
3011                 return 0;
3012         else if (L_ISGEQ(&pm1->last, &pm2->last))
3013                 return -1;
3014         else
3015                 return 1;
3016 }
3017
3018
3019 static int
3020 qcmp_mru_r_avgint(
3021         const void *v1,
3022         const void *v2
3023         )
3024 {
3025         return -qcmp_mru_avgint(v1, v2);
3026 }
3027
3028
3029 /*
3030  * mrulist - ntpq's mrulist command to fetch an arbitrarily large Most
3031  *           Recently Used (seen) remote address list from ntpd.
3032  *
3033  * Similar to ntpdc's monlist command, but not limited to a single
3034  * request/response, and thereby not limited to a few hundred remote
3035  * addresses.
3036  *
3037  * See ntpd/ntp_control.c read_mru_list() for comments on the way
3038  * CTL_OP_READ_MRU is designed to be used.
3039  *
3040  * mrulist intentionally differs from monlist in the way the avgint
3041  * column is calculated.  monlist includes the time after the last
3042  * packet from the client until the monlist query time in the average,
3043  * while mrulist excludes it.  That is, monlist's average interval grows
3044  * over time for remote addresses not heard from in some time, while it
3045  * remains unchanged in mrulist.  This also affects the avgint value for
3046  * entries representing a single packet, with identical first and last
3047  * timestamps.  mrulist shows 0 avgint, monlist shows a value identical
3048  * to lstint.
3049  */
3050 static void
3051 mrulist(
3052         struct parse *  pcmd,
3053         FILE *          fp
3054         )
3055 {
3056         const char mincount_eq[] =      "mincount=";
3057         const char resall_eq[] =        "resall=";
3058         const char resany_eq[] =        "resany=";
3059         const char maxlstint_eq[] =     "maxlstint=";
3060         const char laddr_eq[] =         "laddr=";
3061         const char sort_eq[] =          "sort=";
3062         mru_sort_order order;
3063         size_t n;
3064         char parms_buf[128];
3065         char buf[24];
3066         char *parms;
3067         const char *arg;
3068         size_t cb;
3069         mru **sorted;
3070         mru **ppentry;
3071         mru *recent;
3072         l_fp now;
3073         l_fp interval;
3074         double favgint;
3075         double flstint;
3076         int avgint;
3077         int lstint;
3078         size_t i;
3079
3080         mrulist_interrupted = FALSE;
3081         push_ctrl_c_handler(&mrulist_ctrl_c_hook);
3082         fprintf(stderr,
3083                 "Ctrl-C will stop MRU retrieval and display partial results.\n");
3084         fflush(stderr);
3085
3086         order = MRUSORT_DEF;
3087         parms_buf[0] = '\0';
3088         parms = parms_buf;
3089         for (i = 0; i < pcmd->nargs; i++) {
3090                 arg = pcmd->argval[i].string;
3091                 if (arg != NULL) {
3092                         cb = strlen(arg) + 1;
3093                         if ((!strncmp(resall_eq, arg, sizeof(resall_eq)
3094                             - 1) || !strncmp(resany_eq, arg,
3095                             sizeof(resany_eq) - 1) || !strncmp(
3096                             mincount_eq, arg, sizeof(mincount_eq) - 1)
3097                             || !strncmp(laddr_eq, arg, sizeof(laddr_eq)
3098                             - 1) || !strncmp(maxlstint_eq, arg,
3099                             sizeof(laddr_eq) - 1)) && parms + cb + 2 <=
3100                             parms_buf + sizeof(parms_buf)) {
3101                                 /* these are passed intact to ntpd */
3102                                 memcpy(parms, ", ", 2);
3103                                 parms += 2;
3104                                 memcpy(parms, arg, cb);
3105                                 parms += cb - 1;
3106                         } else if (!strncmp(sort_eq, arg,
3107                                             sizeof(sort_eq) - 1)) {
3108                                 arg += sizeof(sort_eq) - 1;
3109                                 for (n = 0;
3110                                      n < COUNTOF(mru_sort_keywords);
3111                                      n++)
3112                                         if (!strcmp(mru_sort_keywords[n],
3113                                                     arg))
3114                                                 break;
3115                                 if (n < COUNTOF(mru_sort_keywords))
3116                                         order = n;
3117                         } else if (!strcmp("limited", arg) ||
3118                                    !strcmp("kod", arg)) {
3119                                 /* transform to resany=... */
3120                                 snprintf(buf, sizeof(buf),
3121                                          ", resany=0x%x",
3122                                          ('k' == arg[0])
3123                                              ? RES_KOD
3124                                              : RES_LIMITED);
3125                                 cb = 1 + strlen(buf);
3126                                 if (parms + cb <
3127                                         parms_buf + sizeof(parms_buf)) {
3128                                         memcpy(parms, buf, cb);
3129                                         parms += cb - 1;
3130                                 }
3131                         } else
3132                                 fprintf(stderr,
3133                                         "ignoring unrecognized mrulist parameter: %s\n",
3134                                         arg);
3135                 }
3136         }
3137         parms = parms_buf;
3138
3139         if (!collect_mru_list(parms, &now))
3140                 return;
3141
3142         /* display the results */
3143         if (rawmode)
3144                 goto cleanup_return;
3145
3146         /* construct an array of entry pointers in default order */
3147         sorted = eallocarray(mru_count, sizeof(*sorted));
3148         ppentry = sorted;
3149         if (MRUSORT_R_DEF != order) {
3150                 ITER_DLIST_BEGIN(mru_list, recent, mlink, mru)
3151                         INSIST(ppentry < sorted + mru_count);
3152                         *ppentry = recent;
3153                         ppentry++;
3154                 ITER_DLIST_END()
3155         } else {
3156                 REV_ITER_DLIST_BEGIN(mru_list, recent, mlink, mru)
3157                         INSIST(ppentry < sorted + mru_count);
3158                         *ppentry = recent;
3159                         ppentry++;
3160                 REV_ITER_DLIST_END()
3161         }
3162
3163         if (ppentry - sorted != (int)mru_count) {
3164                 fprintf(stderr,
3165                         "mru_count %u should match MRU list depth %ld.\n",
3166                         mru_count, (long)(ppentry - sorted));
3167                 free(sorted);
3168                 goto cleanup_return;
3169         }
3170
3171         /* re-sort sorted[] if not default or reverse default */
3172         if (MRUSORT_R_DEF < order)
3173                 qsort(sorted, mru_count, sizeof(sorted[0]),
3174                       mru_qcmp_table[order]);
3175
3176         printf( "lstint avgint rstr r m v  count rport remote address\n"
3177                 "==============================================================================\n");
3178                 /* '=' x 78 */
3179         for (ppentry = sorted; ppentry < sorted + mru_count; ppentry++) {
3180                 recent = *ppentry;
3181                 interval = now;
3182                 L_SUB(&interval, &recent->last);
3183                 LFPTOD(&interval, flstint);
3184                 lstint = (int)(flstint + 0.5);
3185                 interval = recent->last;
3186                 L_SUB(&interval, &recent->first);
3187                 LFPTOD(&interval, favgint);
3188                 favgint /= recent->count;
3189                 avgint = (int)(favgint + 0.5);
3190                 fprintf(fp, "%6d %6d %4hx %c %d %d %6d %5u %s\n",
3191                         lstint, avgint, recent->rs,
3192                         (RES_KOD & recent->rs)
3193                             ? 'K'
3194                             : (RES_LIMITED & recent->rs)
3195                                   ? 'L'
3196                                   : '.',
3197                         (int)recent->mode, (int)recent->ver,
3198                         recent->count, SRCPORT(&recent->addr),
3199                         nntohost(&recent->addr));
3200                 if (showhostnames)
3201                         fflush(fp);
3202         }
3203         fflush(fp);
3204         if (debug) {
3205                 fprintf(stderr,
3206                         "--- completed, freeing sorted[] pointers\n");
3207                 fflush(stderr);
3208         }
3209         free(sorted);
3210
3211 cleanup_return:
3212         if (debug) {
3213                 fprintf(stderr, "... freeing MRU entries\n");
3214                 fflush(stderr);
3215         }
3216         ITER_DLIST_BEGIN(mru_list, recent, mlink, mru)
3217                 free(recent);
3218         ITER_DLIST_END()
3219         if (debug) {
3220                 fprintf(stderr, "... freeing hash_table[]\n");
3221                 fflush(stderr);
3222         }
3223         free(hash_table);
3224         hash_table = NULL;
3225         INIT_DLIST(mru_list, mlink);
3226
3227         pop_ctrl_c_handler(&mrulist_ctrl_c_hook);
3228 }
3229
3230
3231 /*
3232  * validate_ifnum - helper for ifstats()
3233  *
3234  * Ensures rows are received in order and complete.
3235  */
3236 static void
3237 validate_ifnum(
3238         FILE *          fp,
3239         u_int           ifnum,
3240         int *           pfields,
3241         ifstats_row *   prow
3242         )
3243 {
3244         if (prow->ifnum == ifnum)
3245                 return;
3246         if (prow->ifnum + 1 <= ifnum) {
3247                 if (*pfields < IFSTATS_FIELDS)
3248                         fprintf(fp, "Warning: incomplete row with %d (of %d) fields",
3249                                 *pfields, IFSTATS_FIELDS);
3250                 *pfields = 0;
3251                 prow->ifnum = ifnum;
3252                 return;
3253         }
3254         fprintf(stderr,
3255                 "received if index %u, have %d of %d fields for index %u, aborting.\n",
3256                 ifnum, *pfields, IFSTATS_FIELDS, prow->ifnum);
3257         exit(1);
3258 }
3259
3260
3261 /*
3262  * another_ifstats_field - helper for ifstats()
3263  *
3264  * If all fields for the row have been received, print it.
3265  */
3266 static void
3267 another_ifstats_field(
3268         int *           pfields,
3269         ifstats_row *   prow,
3270         FILE *          fp
3271         )
3272 {
3273         u_int ifnum;
3274
3275         (*pfields)++;
3276         /* we understand 12 tags */
3277         if (IFSTATS_FIELDS > *pfields)
3278                 return;
3279         /*
3280         "    interface name                                        send\n"
3281         " #  address/broadcast     drop flag ttl mc received sent failed peers   uptime\n"
3282         "==============================================================================\n");
3283          */
3284         fprintf(fp,
3285                 "%3u %-24.24s %c %4x %3d %2d %6d %6d %6d %5d %8d\n"
3286                 "    %s\n",
3287                 prow->ifnum, prow->name,
3288                 (prow->enabled)
3289                     ? '.'
3290                     : 'D',
3291                 prow->flags, prow->ttl, prow->mcast_count,
3292                 prow->received, prow->sent, prow->send_errors,
3293                 prow->peer_count, prow->uptime, sptoa(&prow->addr));
3294         if (!SOCK_UNSPEC(&prow->bcast))
3295                 fprintf(fp, "    %s\n", sptoa(&prow->bcast));
3296         ifnum = prow->ifnum;
3297         ZERO(*prow);
3298         prow->ifnum = ifnum;
3299 }
3300
3301
3302 /*
3303  * ifstats - ntpq -c ifstats modeled on ntpdc -c ifstats.
3304  */
3305 static void
3306 ifstats(
3307         struct parse *  pcmd,
3308         FILE *          fp
3309         )
3310 {
3311         const char      addr_fmt[] =    "addr.%u";
3312         const char      bcast_fmt[] =   "bcast.%u";
3313         const char      en_fmt[] =      "en.%u";        /* enabled */
3314         const char      flags_fmt[] =   "flags.%u";
3315         const char      mc_fmt[] =      "mc.%u";        /* mcast count */
3316         const char      name_fmt[] =    "name.%u";
3317         const char      pc_fmt[] =      "pc.%u";        /* peer count */
3318         const char      rx_fmt[] =      "rx.%u";
3319         const char      tl_fmt[] =      "tl.%u";        /* ttl */
3320         const char      tx_fmt[] =      "tx.%u";
3321         const char      txerr_fmt[] =   "txerr.%u";
3322         const char      up_fmt[] =      "up.%u";        /* uptime */
3323         const char *    datap;
3324         int             qres;
3325         size_t          dsize;
3326         u_short         rstatus;
3327         char *          tag;
3328         char *          val;
3329         int             fields;
3330         u_int           ui;
3331         ifstats_row     row;
3332         int             comprende;
3333         size_t          len;
3334
3335         qres = doquery(CTL_OP_READ_ORDLIST_A, 0, TRUE, 0, NULL, &rstatus,
3336                        &dsize, &datap);
3337         if (qres)       /* message already displayed */
3338                 return;
3339
3340         fprintf(fp,
3341                 "    interface name                                        send\n"
3342                 " #  address/broadcast     drop flag ttl mc received sent failed peers   uptime\n"
3343                 "==============================================================================\n");
3344                 /* '=' x 78 */
3345
3346         ZERO(row);
3347         fields = 0;
3348         ui = 0;
3349         while (nextvar(&dsize, &datap, &tag, &val)) {
3350                 if (debug > 1)
3351                         fprintf(stderr, "nextvar gave: %s = %s\n", tag,
3352                                 (NULL == val)
3353                                     ? ""
3354                                     : val);
3355                 comprende = FALSE;
3356                 switch(tag[0]) {
3357
3358                 case 'a':
3359                         if (1 == sscanf(tag, addr_fmt, &ui) &&
3360                             decodenetnum(val, &row.addr))
3361                                 comprende = TRUE;
3362                         break;
3363
3364                 case 'b':
3365                         if (1 == sscanf(tag, bcast_fmt, &ui) &&
3366                             (NULL == val ||
3367                              decodenetnum(val, &row.bcast)))
3368                                 comprende = TRUE;
3369                         break;
3370
3371                 case 'e':
3372                         if (1 == sscanf(tag, en_fmt, &ui) &&
3373                             1 == sscanf(val, "%d", &row.enabled))
3374                                 comprende = TRUE;
3375                         break;
3376
3377                 case 'f':
3378                         if (1 == sscanf(tag, flags_fmt, &ui) &&
3379                             1 == sscanf(val, "0x%x", &row.flags))
3380                                 comprende = TRUE;
3381                         break;
3382
3383                 case 'm':
3384                         if (1 == sscanf(tag, mc_fmt, &ui) &&
3385                             1 == sscanf(val, "%d", &row.mcast_count))
3386                                 comprende = TRUE;
3387                         break;
3388
3389                 case 'n':
3390                         if (1 == sscanf(tag, name_fmt, &ui)) {
3391                                 /* strip quotes */
3392                                 INSIST(val);
3393                                 len = strlen(val);
3394                                 if (len >= 2 &&
3395                                     len - 2 < sizeof(row.name)) {
3396                                         len -= 2;
3397                                         memcpy(row.name, val + 1, len);
3398                                         row.name[len] = '\0';
3399                                         comprende = TRUE;
3400                                 }
3401                         }
3402                         break;
3403
3404                 case 'p':
3405                         if (1 == sscanf(tag, pc_fmt, &ui) &&
3406                             1 == sscanf(val, "%d", &row.peer_count))
3407                                 comprende = TRUE;
3408                         break;
3409
3410                 case 'r':
3411                         if (1 == sscanf(tag, rx_fmt, &ui) &&
3412                             1 == sscanf(val, "%d", &row.received))
3413                                 comprende = TRUE;
3414                         break;
3415
3416                 case 't':
3417                         if (1 == sscanf(tag, tl_fmt, &ui) &&
3418                             1 == sscanf(val, "%d", &row.ttl))
3419                                 comprende = TRUE;
3420                         else if (1 == sscanf(tag, tx_fmt, &ui) &&
3421                                  1 == sscanf(val, "%d", &row.sent))
3422                                 comprende = TRUE;
3423                         else if (1 == sscanf(tag, txerr_fmt, &ui) &&
3424                                  1 == sscanf(val, "%d", &row.send_errors))
3425                                 comprende = TRUE;
3426                         break;
3427
3428                 case 'u':
3429                         if (1 == sscanf(tag, up_fmt, &ui) &&
3430                             1 == sscanf(val, "%d", &row.uptime))
3431                                 comprende = TRUE;
3432                         break;
3433                 }
3434
3435                 if (comprende) {
3436                         /* error out if rows out of order */
3437                         validate_ifnum(fp, ui, &fields, &row);
3438                         /* if the row is complete, print it */
3439                         another_ifstats_field(&fields, &row, fp);
3440                 }
3441         }
3442         if (fields != IFSTATS_FIELDS)
3443                 fprintf(fp, "Warning: incomplete row with %d (of %d) fields",
3444                         fields, IFSTATS_FIELDS);
3445
3446         fflush(fp);
3447 }
3448
3449
3450 /*
3451  * validate_reslist_idx - helper for reslist()
3452  *
3453  * Ensures rows are received in order and complete.
3454  */
3455 static void
3456 validate_reslist_idx(
3457         FILE *          fp,
3458         u_int           idx,
3459         int *           pfields,
3460         reslist_row *   prow
3461         )
3462 {
3463         if (prow->idx == idx)
3464                 return;
3465         if (prow->idx + 1 == idx) {
3466                 if (*pfields < RESLIST_FIELDS)
3467                         fprintf(fp, "Warning: incomplete row with %d (of %d) fields",
3468                                 *pfields, RESLIST_FIELDS);
3469                 *pfields = 0;
3470                 prow->idx = idx;
3471                 return;
3472         }
3473         fprintf(stderr,
3474                 "received reslist index %u, have %d of %d fields for index %u, aborting.\n",
3475                 idx, *pfields, RESLIST_FIELDS, prow->idx);
3476         exit(1);
3477 }
3478
3479
3480 /*
3481  * another_reslist_field - helper for reslist()
3482  *
3483  * If all fields for the row have been received, print it.
3484  */
3485 static void
3486 another_reslist_field(
3487         int *           pfields,
3488         reslist_row *   prow,
3489         FILE *          fp
3490         )
3491 {
3492         char    addrmaskstr[128];
3493         int     prefix; /* subnet mask as prefix bits count */
3494         u_int   idx;
3495
3496         (*pfields)++;
3497         /* we understand 4 tags */
3498         if (RESLIST_FIELDS > *pfields)
3499                 return;
3500
3501         prefix = sockaddr_masktoprefixlen(&prow->mask);
3502         if (prefix >= 0)
3503                 snprintf(addrmaskstr, sizeof(addrmaskstr), "%s/%d",
3504                          stoa(&prow->addr), prefix);
3505         else
3506                 snprintf(addrmaskstr, sizeof(addrmaskstr), "%s %s",
3507                          stoa(&prow->addr), stoa(&prow->mask));
3508
3509         /*
3510         "   hits    addr/prefix or addr mask\n"
3511         "           restrictions\n"
3512         "==============================================================================\n");
3513          */
3514         fprintf(fp,
3515                 "%10lu %s\n"
3516                 "           %s\n",
3517                 prow->hits, addrmaskstr, prow->flagstr);
3518         idx = prow->idx;
3519         ZERO(*prow);
3520         prow->idx = idx;
3521 }
3522
3523
3524 /*
3525  * reslist - ntpq -c reslist modeled on ntpdc -c reslist.
3526  */
3527 static void
3528 reslist(
3529         struct parse *  pcmd,
3530         FILE *          fp
3531         )
3532 {
3533         const char addr_fmtu[] =        "addr.%u";
3534         const char mask_fmtu[] =        "mask.%u";
3535         const char hits_fmt[] =         "hits.%u";
3536         const char flags_fmt[] =        "flags.%u";
3537         const char qdata[] =            "addr_restrictions";
3538         const int qdata_chars =         COUNTOF(qdata) - 1;
3539         const char *    datap;
3540         int             qres;
3541         size_t          dsize;
3542         u_short         rstatus;
3543         char *          tag;
3544         char *          val;
3545         int             fields;
3546         u_int           ui;
3547         reslist_row     row;
3548         int             comprende;
3549         size_t          len;
3550
3551         qres = doquery(CTL_OP_READ_ORDLIST_A, 0, TRUE, qdata_chars,
3552                        qdata, &rstatus, &dsize, &datap);
3553         if (qres)       /* message already displayed */
3554                 return;
3555
3556         fprintf(fp,
3557                 "   hits    addr/prefix or addr mask\n"
3558                 "           restrictions\n"
3559                 "==============================================================================\n");
3560                 /* '=' x 78 */
3561
3562         ZERO(row);
3563         fields = 0;
3564         ui = 0;
3565         while (nextvar(&dsize, &datap, &tag, &val)) {
3566                 if (debug > 1)
3567                         fprintf(stderr, "nextvar gave: %s = %s\n", tag,
3568                                 (NULL == val)
3569                                     ? ""
3570                                     : val);
3571                 comprende = FALSE;
3572                 switch(tag[0]) {
3573
3574                 case 'a':
3575                         if (1 == sscanf(tag, addr_fmtu, &ui) &&
3576                             decodenetnum(val, &row.addr))
3577                                 comprende = TRUE;
3578                         break;
3579
3580                 case 'f':
3581                         if (1 == sscanf(tag, flags_fmt, &ui)) {
3582                                 if (NULL == val) {
3583                                         row.flagstr[0] = '\0';
3584                                         comprende = TRUE;
3585                                 } else {
3586                                         len = strlen(val);
3587                                         memcpy(row.flagstr, val, len);
3588                                         row.flagstr[len] = '\0';
3589                                         comprende = TRUE;
3590                                 }
3591                         }
3592                         break;
3593
3594                 case 'h':
3595                         if (1 == sscanf(tag, hits_fmt, &ui) &&
3596                             1 == sscanf(val, "%lu", &row.hits))
3597                                 comprende = TRUE;
3598                         break;
3599
3600                 case 'm':
3601                         if (1 == sscanf(tag, mask_fmtu, &ui) &&
3602                             decodenetnum(val, &row.mask))
3603                                 comprende = TRUE;
3604                         break;
3605                 }
3606
3607                 if (comprende) {
3608                         /* error out if rows out of order */
3609                         validate_reslist_idx(fp, ui, &fields, &row);
3610                         /* if the row is complete, print it */
3611                         another_reslist_field(&fields, &row, fp);
3612                 }
3613         }
3614         if (fields != RESLIST_FIELDS)
3615                 fprintf(fp, "Warning: incomplete row with %d (of %d) fields",
3616                         fields, RESLIST_FIELDS);
3617
3618         fflush(fp);
3619 }
3620
3621
3622 /*
3623  * collect_display_vdc
3624  */
3625 static void
3626 collect_display_vdc(
3627         associd_t       as,
3628         vdc *           table,
3629         int             decodestatus,
3630         FILE *          fp
3631         )
3632 {
3633         static const char * const suf[2] = { "adr", "port" };
3634         static const char * const leapbits[4] = { "00", "01",
3635                                                   "10", "11" };
3636         struct varlist vl[MAXLIST];
3637         char tagbuf[32];
3638         vdc *pvdc;
3639         u_short rstatus;
3640         size_t rsize;
3641         const char *rdata;
3642         int qres;
3643         char *tag;
3644         char *val;
3645         u_int n;
3646         size_t len;
3647         int match;
3648         u_long ul;
3649         int vtype;
3650
3651         ZERO(vl);
3652         for (pvdc = table; pvdc->tag != NULL; pvdc++) {
3653                 ZERO(pvdc->v);
3654                 if (NTP_ADD != pvdc->type) {
3655                         doaddvlist(vl, pvdc->tag);
3656                 } else {
3657                         for (n = 0; n < COUNTOF(suf); n++) {
3658                                 snprintf(tagbuf, sizeof(tagbuf), "%s%s",
3659                                          pvdc->tag, suf[n]);
3660                                 doaddvlist(vl, tagbuf);
3661                         }
3662                 }
3663         }
3664         qres = doquerylist(vl, CTL_OP_READVAR, as, 0, &rstatus, &rsize,
3665                            &rdata);
3666         doclearvlist(vl);
3667         if (qres)
3668                 return;         /* error msg already displayed */
3669
3670         /*
3671          * iterate over the response variables filling vdc_table with
3672          * the retrieved values.
3673          */
3674         while (nextvar(&rsize, &rdata, &tag, &val)) {
3675                 if (NULL == val)
3676                         continue;
3677                 n = 0;
3678                 for (pvdc = table; pvdc->tag != NULL; pvdc++) {
3679                         len = strlen(pvdc->tag);
3680                         if (strncmp(tag, pvdc->tag, len))
3681                                 continue;
3682                         if (NTP_ADD != pvdc->type) {
3683                                 if ('\0' != tag[len])
3684                                         continue;
3685                                 break;
3686                         }
3687                         match = FALSE;
3688                         for (n = 0; n < COUNTOF(suf); n++) {
3689                                 if (strcmp(tag + len, suf[n]))
3690                                         continue;
3691                                 match = TRUE;
3692                                 break;
3693                         }
3694                         if (match)
3695                                 break;
3696                 }
3697                 if (NULL == pvdc->tag)
3698                         continue;
3699                 switch (pvdc->type) {
3700
3701                 case NTP_STR:
3702                         /* strip surrounding double quotes */
3703                         if ('"' == val[0]) {
3704                                 len = strlen(val);
3705                                 if (len > 0 && '"' == val[len - 1]) {
3706                                         val[len - 1] = '\0';
3707                                         val++;
3708                                 }
3709                         }
3710                         /* fallthru */
3711                 case NTP_MODE:  /* fallthru */
3712                 case NTP_2BIT:
3713                         pvdc->v.str = estrdup(val);
3714                         break;
3715
3716                 case NTP_LFP:
3717                         decodets(val, &pvdc->v.lfp);
3718                         break;
3719
3720                 case NTP_ADP:
3721                         if (!decodenetnum(val, &pvdc->v.sau))
3722                                 fprintf(stderr, "malformed %s=%s\n",
3723                                         pvdc->tag, val);
3724                         break;
3725
3726                 case NTP_ADD:
3727                         if (0 == n) {   /* adr */
3728                                 if (!decodenetnum(val, &pvdc->v.sau))
3729                                         fprintf(stderr,
3730                                                 "malformed %s=%s\n",
3731                                                 pvdc->tag, val);
3732                         } else {        /* port */
3733                                 if (atouint(val, &ul))
3734                                         SET_PORT(&pvdc->v.sau,
3735                                                  (u_short)ul);
3736                         }
3737                         break;
3738                 }
3739         }
3740
3741         /* and display */
3742         if (decodestatus) {
3743                 vtype = (0 == as)
3744                             ? TYPE_SYS
3745                             : TYPE_PEER;
3746                 fprintf(fp, "associd=%u status=%04x %s,\n", as, rstatus,
3747                         statustoa(vtype, rstatus));
3748         }
3749
3750         for (pvdc = table; pvdc->tag != NULL; pvdc++) {
3751                 switch (pvdc->type) {
3752
3753                 case NTP_STR:
3754                         if (pvdc->v.str != NULL) {
3755                                 fprintf(fp, "%s  %s\n", pvdc->display,
3756                                         pvdc->v.str);
3757                                 free(pvdc->v.str);
3758                                 pvdc->v.str = NULL;
3759                         }
3760                         break;
3761
3762                 case NTP_ADD:   /* fallthru */
3763                 case NTP_ADP:
3764                         fprintf(fp, "%s  %s\n", pvdc->display,
3765                                 nntohostp(&pvdc->v.sau));
3766                         break;
3767
3768                 case NTP_LFP:
3769                         fprintf(fp, "%s  %s\n", pvdc->display,
3770                                 prettydate(&pvdc->v.lfp));
3771                         break;
3772
3773                 case NTP_MODE:
3774                         atouint(pvdc->v.str, &ul);
3775                         fprintf(fp, "%s  %s\n", pvdc->display,
3776                                 modetoa((int)ul));
3777                         break;
3778
3779                 case NTP_2BIT:
3780                         atouint(pvdc->v.str, &ul);
3781                         fprintf(fp, "%s  %s\n", pvdc->display,
3782                                 leapbits[ul & 0x3]);
3783                         break;
3784
3785                 default:
3786                         fprintf(stderr, "unexpected vdc type %d for %s\n",
3787                                 pvdc->type, pvdc->tag);
3788                         break;
3789                 }
3790         }
3791 }
3792
3793
3794 /*
3795  * sysstats - implements ntpq -c sysstats modeled on ntpdc -c sysstats
3796  */
3797 static void
3798 sysstats(
3799         struct parse *pcmd,
3800         FILE *fp
3801         )
3802 {
3803     static vdc sysstats_vdc[] = {
3804         VDC_INIT("ss_uptime",           "uptime:               ", NTP_STR),
3805         VDC_INIT("ss_reset",            "sysstats reset:       ", NTP_STR),
3806         VDC_INIT("ss_received",         "packets received:     ", NTP_STR),
3807         VDC_INIT("ss_thisver",          "current version:      ", NTP_STR),
3808         VDC_INIT("ss_oldver",           "older version:        ", NTP_STR),
3809         VDC_INIT("ss_badformat",        "bad length or format: ", NTP_STR),
3810         VDC_INIT("ss_badauth",          "authentication failed:", NTP_STR),
3811         VDC_INIT("ss_declined",         "declined:             ", NTP_STR),
3812         VDC_INIT("ss_restricted",       "restricted:           ", NTP_STR),
3813         VDC_INIT("ss_limited",          "rate limited:         ", NTP_STR),
3814         VDC_INIT("ss_kodsent",          "KoD responses:        ", NTP_STR),
3815         VDC_INIT("ss_processed",        "processed for time:   ", NTP_STR),
3816         VDC_INIT(NULL,                  NULL,                     0)
3817     };
3818
3819         collect_display_vdc(0, sysstats_vdc, FALSE, fp);
3820 }
3821
3822
3823 /*
3824  * sysinfo - modeled on ntpdc's sysinfo
3825  */
3826 static void
3827 sysinfo(
3828         struct parse *pcmd,
3829         FILE *fp
3830         )
3831 {
3832     static vdc sysinfo_vdc[] = {
3833         VDC_INIT("peeradr",             "system peer:      ", NTP_ADP),
3834         VDC_INIT("peermode",            "system peer mode: ", NTP_MODE),
3835         VDC_INIT("leap",                "leap indicator:   ", NTP_2BIT),
3836         VDC_INIT("stratum",             "stratum:          ", NTP_STR),
3837         VDC_INIT("precision",           "log2 precision:   ", NTP_STR),
3838         VDC_INIT("rootdelay",           "root delay:       ", NTP_STR),
3839         VDC_INIT("rootdisp",            "root dispersion:  ", NTP_STR),
3840         VDC_INIT("refid",               "reference ID:     ", NTP_STR),
3841         VDC_INIT("reftime",             "reference time:   ", NTP_LFP),
3842         VDC_INIT("sys_jitter",          "system jitter:    ", NTP_STR),
3843         VDC_INIT("clk_jitter",          "clock jitter:     ", NTP_STR),
3844         VDC_INIT("clk_wander",          "clock wander:     ", NTP_STR),
3845         VDC_INIT("bcastdelay",          "broadcast delay:  ", NTP_STR),
3846         VDC_INIT("authdelay",           "symm. auth. delay:", NTP_STR),
3847         VDC_INIT(NULL,                  NULL,                 0)
3848     };
3849
3850         collect_display_vdc(0, sysinfo_vdc, TRUE, fp);
3851 }
3852
3853
3854 /*
3855  * kerninfo - modeled on ntpdc's kerninfo
3856  */
3857 static void
3858 kerninfo(
3859         struct parse *pcmd,
3860         FILE *fp
3861         )
3862 {
3863     static vdc kerninfo_vdc[] = {
3864         VDC_INIT("koffset",             "pll offset:          ", NTP_STR),
3865         VDC_INIT("kfreq",               "pll frequency:       ", NTP_STR),
3866         VDC_INIT("kmaxerr",             "maximum error:       ", NTP_STR),
3867         VDC_INIT("kesterr",             "estimated error:     ", NTP_STR),
3868         VDC_INIT("kstflags",            "kernel status:       ", NTP_STR),
3869         VDC_INIT("ktimeconst",          "pll time constant:   ", NTP_STR),
3870         VDC_INIT("kprecis",             "precision:           ", NTP_STR),
3871         VDC_INIT("kfreqtol",            "frequency tolerance: ", NTP_STR),
3872         VDC_INIT("kppsfreq",            "pps frequency:       ", NTP_STR),
3873         VDC_INIT("kppsstab",            "pps stability:       ", NTP_STR),
3874         VDC_INIT("kppsjitter",          "pps jitter:          ", NTP_STR),
3875         VDC_INIT("kppscalibdur",        "calibration interval ", NTP_STR),
3876         VDC_INIT("kppscalibs",          "calibration cycles:  ", NTP_STR),
3877         VDC_INIT("kppsjitexc",          "jitter exceeded:     ", NTP_STR),
3878         VDC_INIT("kppsstbexc",          "stability exceeded:  ", NTP_STR),
3879         VDC_INIT("kppscaliberrs",       "calibration errors:  ", NTP_STR),
3880         VDC_INIT(NULL,                  NULL,                    0)
3881     };
3882
3883         collect_display_vdc(0, kerninfo_vdc, TRUE, fp);
3884 }
3885
3886
3887 /*
3888  * monstats - implements ntpq -c monstats
3889  */
3890 static void
3891 monstats(
3892         struct parse *pcmd,
3893         FILE *fp
3894         )
3895 {
3896     static vdc monstats_vdc[] = {
3897         VDC_INIT("mru_enabled", "enabled:            ", NTP_STR),
3898         VDC_INIT("mru_depth",           "addresses:          ", NTP_STR),
3899         VDC_INIT("mru_deepest", "peak addresses:     ", NTP_STR),
3900         VDC_INIT("mru_maxdepth",        "maximum addresses:  ", NTP_STR),
3901         VDC_INIT("mru_mindepth",        "reclaim above count:", NTP_STR),
3902         VDC_INIT("mru_maxage",          "reclaim older than: ", NTP_STR),
3903         VDC_INIT("mru_mem",             "kilobytes:          ", NTP_STR),
3904         VDC_INIT("mru_maxmem",          "maximum kilobytes:  ", NTP_STR),
3905         VDC_INIT(NULL,                  NULL,                   0)
3906     };
3907
3908         collect_display_vdc(0, monstats_vdc, FALSE, fp);
3909 }
3910
3911
3912 /*
3913  * iostats - ntpq -c iostats - network input and output counters
3914  */
3915 static void
3916 iostats(
3917         struct parse *pcmd,
3918         FILE *fp
3919         )
3920 {
3921     static vdc iostats_vdc[] = {
3922         VDC_INIT("iostats_reset",       "time since reset:     ", NTP_STR),
3923         VDC_INIT("total_rbuf",          "receive buffers:      ", NTP_STR),
3924         VDC_INIT("free_rbuf",           "free receive buffers: ", NTP_STR),
3925         VDC_INIT("used_rbuf",           "used receive buffers: ", NTP_STR),
3926         VDC_INIT("rbuf_lowater",        "low water refills:    ", NTP_STR),
3927         VDC_INIT("io_dropped",          "dropped packets:      ", NTP_STR),
3928         VDC_INIT("io_ignored",          "ignored packets:      ", NTP_STR),
3929         VDC_INIT("io_received",         "received packets:     ", NTP_STR),
3930         VDC_INIT("io_sent",             "packets sent:         ", NTP_STR),
3931         VDC_INIT("io_sendfailed",       "packet send failures: ", NTP_STR),
3932         VDC_INIT("io_wakeups",          "input wakeups:        ", NTP_STR),
3933         VDC_INIT("io_goodwakeups",      "useful input wakeups: ", NTP_STR),
3934         VDC_INIT(NULL,                  NULL,                     0)
3935     };
3936
3937         collect_display_vdc(0, iostats_vdc, FALSE, fp);
3938 }
3939
3940
3941 /*
3942  * timerstats - ntpq -c timerstats - interval timer counters
3943  */
3944 static void
3945 timerstats(
3946         struct parse *pcmd,
3947         FILE *fp
3948         )
3949 {
3950     static vdc timerstats_vdc[] = {
3951         VDC_INIT("timerstats_reset",    "time since reset:  ", NTP_STR),
3952         VDC_INIT("timer_overruns",      "timer overruns:    ", NTP_STR),
3953         VDC_INIT("timer_xmts",          "calls to transmit: ", NTP_STR),
3954         VDC_INIT(NULL,                  NULL,                  0)
3955     };
3956
3957         collect_display_vdc(0, timerstats_vdc, FALSE, fp);
3958 }
3959
3960
3961 /*
3962  * authinfo - implements ntpq -c authinfo
3963  */
3964 static void
3965 authinfo(
3966         struct parse *pcmd,
3967         FILE *fp
3968         )
3969 {
3970     static vdc authinfo_vdc[] = {
3971         VDC_INIT("authreset",           "time since reset:", NTP_STR),
3972         VDC_INIT("authkeys",            "stored keys:     ", NTP_STR),
3973         VDC_INIT("authfreek",           "free keys:       ", NTP_STR),
3974         VDC_INIT("authklookups",        "key lookups:     ", NTP_STR),
3975         VDC_INIT("authknotfound",       "keys not found:  ", NTP_STR),
3976         VDC_INIT("authkuncached",       "uncached keys:   ", NTP_STR),
3977         VDC_INIT("authkexpired",        "expired keys:    ", NTP_STR),
3978         VDC_INIT("authencrypts",        "encryptions:     ", NTP_STR),
3979         VDC_INIT("authdecrypts",        "decryptions:     ", NTP_STR),
3980         VDC_INIT(NULL,                  NULL,                0)
3981     };
3982
3983         collect_display_vdc(0, authinfo_vdc, FALSE, fp);
3984 }
3985
3986
3987 /*
3988  * pstats - show statistics for a peer
3989  */
3990 static void
3991 pstats(
3992         struct parse *pcmd,
3993         FILE *fp
3994         )
3995 {
3996     static vdc pstats_vdc[] = {
3997         VDC_INIT("src",         "remote host:         ", NTP_ADD),
3998         VDC_INIT("dst",         "local address:       ", NTP_ADD),
3999         VDC_INIT("timerec",     "time last received:  ", NTP_STR),
4000         VDC_INIT("timer",       "time until next send:", NTP_STR),
4001         VDC_INIT("timereach",   "reachability change: ", NTP_STR),
4002         VDC_INIT("sent",        "packets sent:        ", NTP_STR),
4003         VDC_INIT("received",    "packets received:    ", NTP_STR),
4004         VDC_INIT("badauth",     "bad authentication:  ", NTP_STR),
4005         VDC_INIT("bogusorg",    "bogus origin:        ", NTP_STR),
4006         VDC_INIT("oldpkt",      "duplicate:           ", NTP_STR),
4007         VDC_INIT("seldisp",     "bad dispersion:      ", NTP_STR),
4008         VDC_INIT("selbroken",   "bad reference time:  ", NTP_STR),
4009         VDC_INIT("candidate",   "candidate order:     ", NTP_STR),
4010         VDC_INIT(NULL,          NULL,                    0)
4011     };
4012         associd_t associd;
4013
4014         associd = checkassocid(pcmd->argval[0].uval);
4015         if (0 == associd)
4016                 return;
4017
4018         collect_display_vdc(associd, pstats_vdc, TRUE, fp);
4019 }