usr.bin/kdump/kdump.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 1988, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #ifndef lint
  33 static const char copyright[] =
  34 "@(#) Copyright (c) 1988, 1993\n\
  35         The Regents of the University of California.  All rights reserved.\n";
  36 #endif /* not lint */
  37
  38 #ifndef lint
  39 #if 0
  40 static char sccsid[] = "@(#)kdump.c     8.1 (Berkeley) 6/6/93";
  41 #endif
  42 #endif /* not lint */
  43 #include <sys/cdefs.h>
  44 __FBSDID("$FreeBSD$");
  45
  46 #define _WANT_KERNEL_ERRNO
  47 #ifdef __LP64__
  48 #define _WANT_KEVENT32
  49 #endif
  50 #define _WANT_FREEBSD11_KEVENT
  51 #include <sys/param.h>
  52 #include <sys/capsicum.h>
  53 #include <sys/errno.h>
  54 #include <sys/time.h>
  55 #include <sys/uio.h>
  56 #include <sys/event.h>
  57 #include <sys/ktrace.h>
  58 #include <sys/mman.h>
  59 #include <sys/ioctl.h>
  60 #include <sys/socket.h>
  61 #include <sys/stat.h>
  62 #include <sys/sysent.h>
  63 #include <sys/umtx.h>
  64 #include <sys/un.h>
  65 #include <sys/queue.h>
  66 #include <sys/wait.h>
  67 #ifdef WITH_CASPER
  68 #include <sys/nv.h>
  69 #endif
  70 #include <arpa/inet.h>
  71 #include <netinet/in.h>
  72 #include <ctype.h>
  73 #include <capsicum_helpers.h>
  74 #include <err.h>
  75 #include <grp.h>
  76 #include <inttypes.h>
  77 #include <locale.h>
  78 #include <netdb.h>
  79 #include <nl_types.h>
  80 #include <pwd.h>
  81 #include <stddef.h>
  82 #include <stdio.h>
  83 #include <stdlib.h>
  84 #include <string.h>
  85 #include <sysdecode.h>
  86 #include <time.h>
  87 #include <unistd.h>
  88 #include <vis.h>
  89 #include "ktrace.h"
  90
  91 #ifdef WITH_CASPER
  92 #include <libcasper.h>
  93
  94 #include <casper/cap_grp.h>
  95 #include <casper/cap_pwd.h>
  96 #endif
  97
  98 int fetchprocinfo(struct ktr_header *, u_int *);
  99 u_int findabi(struct ktr_header *);
 100 int fread_tail(void *, int, int);
 101 void dumpheader(struct ktr_header *, u_int);
 102 void ktrsyscall(struct ktr_syscall *, u_int);
 103 void ktrsysret(struct ktr_sysret *, u_int);
 104 void ktrnamei(char *, int);
 105 void hexdump(char *, int, int);
 106 void visdump(char *, int, int);
 107 void ktrgenio(struct ktr_genio *, int);
 108 void ktrpsig(struct ktr_psig *);
 109 void ktrcsw(struct ktr_csw *);
 110 void ktrcsw_old(struct ktr_csw_old *);
 111 void ktruser(int, void *);
 112 void ktrcaprights(cap_rights_t *);
 113 void ktritimerval(struct itimerval *it);
 114 void ktrsockaddr(struct sockaddr *);
 115 void ktrstat(struct stat *);
 116 void ktrstruct(char *, size_t);
 117 void ktrcapfail(struct ktr_cap_fail *);
 118 void ktrfault(struct ktr_fault *);
 119 void ktrfaultend(struct ktr_faultend *);
 120 void ktrkevent(struct kevent *);
 121 void ktrstructarray(struct ktr_struct_array *, size_t);
 122 void usage(void);
 123
 124 #define TIMESTAMP_NONE          0x0
 125 #define TIMESTAMP_ABSOLUTE      0x1
 126 #define TIMESTAMP_ELAPSED       0x2
 127 #define TIMESTAMP_RELATIVE      0x4
 128
 129 static bool abiflag, decimal, fancy = true, resolv, suppressdata, syscallno,
 130     tail, threads;
 131 static int timestamp, maxdata;
 132 static const char *tracefile = DEF_TRACEFILE;
 133 static struct ktr_header ktr_header;
 134
 135 #define TIME_FORMAT     "%b %e %T %Y"
 136 #define eqs(s1, s2)     (strcmp((s1), (s2)) == 0)
 137
 138 #define print_number64(first,i,n,c) do {                                \
 139         uint64_t __v;                                                   \
 140                                                                         \
 141         if (quad_align && (((ptrdiff_t)((i) - (first))) & 1) == 1) {    \
 142                 (i)++;                                                  \
 143                 (n)--;                                                  \
 144         }                                                               \
 145         if (quad_slots == 2)                                            \
 146                 __v = (uint64_t)(uint32_t)(i)[0] |                      \
 147                     ((uint64_t)(uint32_t)(i)[1]) << 32;                 \
 148         else                                                            \
 149                 __v = (uint64_t)*(i);                                   \
 150         if (decimal)                                                    \
 151                 printf("%c%jd", (c), (intmax_t)__v);                    \
 152         else                                                            \
 153                 printf("%c%#jx", (c), (uintmax_t)__v);                  \
 154         (i) += quad_slots;                                              \
 155         (n) -= quad_slots;                                              \
 156         (c) = ',';                                                      \
 157 } while (0)
 158
 159 #define print_number(i,n,c) do {                                        \
 160         if (decimal)                                                    \
 161                 printf("%c%jd", c, (intmax_t)*i);                       \
 162         else                                                            \
 163                 printf("%c%#jx", c, (uintmax_t)(u_register_t)*i);       \
 164         i++;                                                            \
 165         n--;                                                            \
 166         c = ',';                                                        \
 167 } while (0)
 168
 169 struct proc_info
 170 {
 171         TAILQ_ENTRY(proc_info)  info;
 172         u_int                   sv_flags;
 173         pid_t                   pid;
 174 };
 175
 176 static TAILQ_HEAD(trace_procs, proc_info) trace_procs;
 177
 178 #ifdef WITH_CASPER
 179 static cap_channel_t *cappwd, *capgrp;
 180
 181 static int
 182 cappwdgrp_setup(cap_channel_t **cappwdp, cap_channel_t **capgrpp)
 183 {
 184         cap_channel_t *capcas, *cappwdloc, *capgrploc;
 185         const char *cmds[1], *fields[1];
 186
 187         capcas = cap_init();
 188         if (capcas == NULL) {
 189                 err(1, "unable to create casper process");
 190                 exit(1);
 191         }
 192         cappwdloc = cap_service_open(capcas, "system.pwd");
 193         capgrploc = cap_service_open(capcas, "system.grp");
 194         /* Casper capability no longer needed. */
 195         cap_close(capcas);
 196         if (cappwdloc == NULL || capgrploc == NULL) {
 197                 if (cappwdloc == NULL)
 198                         warn("unable to open system.pwd service");
 199                 if (capgrploc == NULL)
 200                         warn("unable to open system.grp service");
 201                 exit(1);
 202         }
 203         /* Limit system.pwd to only getpwuid() function and pw_name field. */
 204         cmds[0] = "getpwuid";
 205         if (cap_pwd_limit_cmds(cappwdloc, cmds, 1) < 0)
 206                 err(1, "unable to limit system.pwd service");
 207         fields[0] = "pw_name";
 208         if (cap_pwd_limit_fields(cappwdloc, fields, 1) < 0)
 209                 err(1, "unable to limit system.pwd service");
 210         /* Limit system.grp to only getgrgid() function and gr_name field. */
 211         cmds[0] = "getgrgid";
 212         if (cap_grp_limit_cmds(capgrploc, cmds, 1) < 0)
 213                 err(1, "unable to limit system.grp service");
 214         fields[0] = "gr_name";
 215         if (cap_grp_limit_fields(capgrploc, fields, 1) < 0)
 216                 err(1, "unable to limit system.grp service");
 217
 218         *cappwdp = cappwdloc;
 219         *capgrpp = capgrploc;
 220         return (0);
 221 }
 222 #endif  /* WITH_CASPER */
 223
 224 static void
 225 print_integer_arg(const char *(*decoder)(int), int value)
 226 {
 227         const char *str;
 228
 229         str = decoder(value);
 230         if (str != NULL)
 231                 printf("%s", str);
 232         else {
 233                 if (decimal)
 234                         printf("<invalid=%d>", value);
 235                 else
 236                         printf("<invalid=%#x>", value);
 237         }
 238 }
 239
 240 /* Like print_integer_arg but unknown values are treated as valid. */
 241 static void
 242 print_integer_arg_valid(const char *(*decoder)(int), int value)
 243 {
 244         const char *str;
 245
 246         str = decoder(value);
 247         if (str != NULL)
 248                 printf("%s", str);
 249         else {
 250                 if (decimal)
 251                         printf("%d", value);
 252                 else
 253                         printf("%#x", value);
 254         }
 255 }
 256
 257 static bool
 258 print_mask_arg_part(bool (*decoder)(FILE *, int, int *), int value, int *rem)
 259 {
 260
 261         printf("%#x<", value);
 262         return (decoder(stdout, value, rem));
 263 }
 264
 265 static void
 266 print_mask_arg(bool (*decoder)(FILE *, int, int *), int value)
 267 {
 268         bool invalid;
 269         int rem;
 270
 271         invalid = !print_mask_arg_part(decoder, value, &rem);
 272         printf(">");
 273         if (invalid)
 274                 printf("<invalid>%u", rem);
 275 }
 276
 277 static void
 278 print_mask_arg0(bool (*decoder)(FILE *, int, int *), int value)
 279 {
 280         bool invalid;
 281         int rem;
 282
 283         if (value == 0) {
 284                 printf("0");
 285                 return;
 286         }
 287         printf("%#x<", value);
 288         invalid = !decoder(stdout, value, &rem);
 289         printf(">");
 290         if (invalid)
 291                 printf("<invalid>%u", rem);
 292 }
 293
 294 static void
 295 decode_fileflags(fflags_t value)
 296 {
 297         bool invalid;
 298         fflags_t rem;
 299
 300         if (value == 0) {
 301                 printf("0");
 302                 return;
 303         }
 304         printf("%#x<", value);
 305         invalid = !sysdecode_fileflags(stdout, value, &rem);
 306         printf(">");
 307         if (invalid)
 308                 printf("<invalid>%u", rem);
 309 }
 310
 311 static void
 312 decode_filemode(int value)
 313 {
 314         bool invalid;
 315         int rem;
 316
 317         if (value == 0) {
 318                 printf("0");
 319                 return;
 320         }
 321         printf("%#o<", value);
 322         invalid = !sysdecode_filemode(stdout, value, &rem);
 323         printf(">");
 324         if (invalid)
 325                 printf("<invalid>%u", rem);
 326 }
 327
 328 static void
 329 print_mask_arg32(bool (*decoder)(FILE *, uint32_t, uint32_t *), uint32_t value)
 330 {
 331         bool invalid;
 332         uint32_t rem;
 333
 334         printf("%#x<", value);
 335         invalid = !decoder(stdout, value, &rem);
 336         printf(">");
 337         if (invalid)
 338                 printf("<invalid>%u", rem);
 339 }
 340
 341 static void
 342 print_mask_argul(bool (*decoder)(FILE *, u_long, u_long *), u_long value)
 343 {
 344         bool invalid;
 345         u_long rem;
 346
 347         if (value == 0) {
 348                 printf("0");
 349                 return;
 350         }
 351         printf("%#lx<", value);
 352         invalid = !decoder(stdout, value, &rem);
 353         printf(">");
 354         if (invalid)
 355                 printf("<invalid>%lu", rem);
 356 }
 357
 358 int
 359 main(int argc, char *argv[])
 360 {
 361         int ch, ktrlen, size;
 362         void *m;
 363         int trpoints = ALL_POINTS;
 364         int drop_logged;
 365         pid_t pid = 0;
 366         u_int sv_flags;
 367
 368         setlocale(LC_CTYPE, "");
 369
 370         timestamp = TIMESTAMP_NONE;
 371
 372         while ((ch = getopt(argc,argv,"f:dElm:np:AHRrSsTt:")) != -1)
 373                 switch (ch) {
 374                 case 'A':
 375                         abiflag = true;
 376                         break;
 377                 case 'f':
 378                         tracefile = optarg;
 379                         break;
 380                 case 'd':
 381                         decimal = true;
 382                         break;
 383                 case 'l':
 384                         tail = true;
 385                         break;
 386                 case 'm':
 387                         maxdata = atoi(optarg);
 388                         break;
 389                 case 'n':
 390                         fancy = false;
 391                         break;
 392                 case 'p':
 393                         pid = atoi(optarg);
 394                         break;
 395                 case 'r':
 396                         resolv = true;
 397                         break;
 398                 case 'S':
 399                         syscallno = true;
 400                         break;
 401                 case 's':
 402                         suppressdata = true;
 403                         break;
 404                 case 'E':
 405                         timestamp |= TIMESTAMP_ELAPSED;
 406                         break;
 407                 case 'H':
 408                         threads = true;
 409                         break;
 410                 case 'R':
 411                         timestamp |= TIMESTAMP_RELATIVE;
 412                         break;
 413                 case 'T':
 414                         timestamp |= TIMESTAMP_ABSOLUTE;
 415                         break;
 416                 case 't':
 417                         trpoints = getpoints(optarg);
 418                         if (trpoints < 0)
 419                                 errx(1, "unknown trace point in %s", optarg);
 420                         break;
 421                 default:
 422                         usage();
 423                 }
 424
 425         if (argc > optind)
 426                 usage();
 427
 428         m = malloc(size = 1025);
 429         if (m == NULL)
 430                 errx(1, "%s", strerror(ENOMEM));
 431         if (strcmp(tracefile, "-") != 0)
 432                 if (!freopen(tracefile, "r", stdin))
 433                         err(1, "%s", tracefile);
 434
 435         caph_cache_catpages();
 436         caph_cache_tzdata();
 437
 438 #ifdef WITH_CASPER
 439         if (resolv) {
 440                 if (cappwdgrp_setup(&cappwd, &capgrp) < 0) {
 441                         cappwd = NULL;
 442                         capgrp = NULL;
 443                 }
 444         }
 445         if (!resolv || (cappwd != NULL && capgrp != NULL)) {
 446                 if (caph_enter() < 0)
 447                         err(1, "unable to enter capability mode");
 448         }
 449 #else
 450         if (!resolv) {
 451                 if (caph_enter() < 0)
 452                         err(1, "unable to enter capability mode");
 453         }
 454 #endif
 455         if (caph_limit_stdio() == -1)
 456                 err(1, "unable to limit stdio");
 457
 458         TAILQ_INIT(&trace_procs);
 459         drop_logged = 0;
 460         while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
 461                 if (ktr_header.ktr_type & KTR_DROP) {
 462                         ktr_header.ktr_type &= ~KTR_DROP;
 463                         if (!drop_logged && threads) {
 464                                 printf(
 465                                     "%6jd %6jd %-8.*s Events dropped.\n",
 466                                     (intmax_t)ktr_header.ktr_pid,
 467                                     ktr_header.ktr_tid > 0 ?
 468                                     (intmax_t)ktr_header.ktr_tid : 0,
 469                                     MAXCOMLEN, ktr_header.ktr_comm);
 470                                 drop_logged = 1;
 471                         } else if (!drop_logged) {
 472                                 printf("%6jd %-8.*s Events dropped.\n",
 473                                     (intmax_t)ktr_header.ktr_pid, MAXCOMLEN,
 474                                     ktr_header.ktr_comm);
 475                                 drop_logged = 1;
 476                         }
 477                 }
 478                 if ((ktrlen = ktr_header.ktr_len) < 0)
 479                         errx(1, "bogus length 0x%x", ktrlen);
 480                 if (ktrlen > size) {
 481                         m = realloc(m, ktrlen+1);
 482                         if (m == NULL)
 483                                 errx(1, "%s", strerror(ENOMEM));
 484                         size = ktrlen;
 485                 }
 486                 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
 487                         errx(1, "data too short");
 488                 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
 489                         continue;
 490                 if (pid && ktr_header.ktr_pid != pid &&
 491                     ktr_header.ktr_tid != pid)
 492                         continue;
 493                 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
 494                         continue;
 495                 sv_flags = findabi(&ktr_header);
 496                 dumpheader(&ktr_header, sv_flags);
 497                 drop_logged = 0;
 498                 switch (ktr_header.ktr_type) {
 499                 case KTR_SYSCALL:
 500                         ktrsyscall((struct ktr_syscall *)m, sv_flags);
 501                         break;
 502                 case KTR_SYSRET:
 503                         ktrsysret((struct ktr_sysret *)m, sv_flags);
 504                         break;
 505                 case KTR_NAMEI:
 506                 case KTR_SYSCTL:
 507                         ktrnamei(m, ktrlen);
 508                         break;
 509                 case KTR_GENIO:
 510                         ktrgenio((struct ktr_genio *)m, ktrlen);
 511                         break;
 512                 case KTR_PSIG:
 513                         ktrpsig((struct ktr_psig *)m);
 514                         break;
 515                 case KTR_CSW:
 516                         if (ktrlen == sizeof(struct ktr_csw_old))
 517                                 ktrcsw_old((struct ktr_csw_old *)m);
 518                         else
 519                                 ktrcsw((struct ktr_csw *)m);
 520                         break;
 521                 case KTR_USER:
 522                         ktruser(ktrlen, m);
 523                         break;
 524                 case KTR_STRUCT:
 525                         ktrstruct(m, ktrlen);
 526                         break;
 527                 case KTR_CAPFAIL:
 528                         ktrcapfail((struct ktr_cap_fail *)m);
 529                         break;
 530                 case KTR_FAULT:
 531                         ktrfault((struct ktr_fault *)m);
 532                         break;
 533                 case KTR_FAULTEND:
 534                         ktrfaultend((struct ktr_faultend *)m);
 535                         break;
 536                 case KTR_STRUCT_ARRAY:
 537                         ktrstructarray((struct ktr_struct_array *)m, ktrlen);
 538                         break;
 539                 default:
 540                         printf("\n");
 541                         break;
 542                 }
 543                 if (tail)
 544                         fflush(stdout);
 545         }
 546         return 0;
 547 }
 548
 549 int
 550 fread_tail(void *buf, int size, int num)
 551 {
 552         int i;
 553
 554         while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
 555                 sleep(1);
 556                 clearerr(stdin);
 557         }
 558         return (i);
 559 }
 560
 561 int
 562 fetchprocinfo(struct ktr_header *kth, u_int *flags)
 563 {
 564         struct proc_info *pi;
 565
 566         switch (kth->ktr_type) {
 567         case KTR_PROCCTOR:
 568                 TAILQ_FOREACH(pi, &trace_procs, info) {
 569                         if (pi->pid == kth->ktr_pid) {
 570                                 TAILQ_REMOVE(&trace_procs, pi, info);
 571                                 break;
 572                         }
 573                 }
 574                 pi = malloc(sizeof(struct proc_info));
 575                 if (pi == NULL)
 576                         errx(1, "%s", strerror(ENOMEM));
 577                 pi->sv_flags = *flags;
 578                 pi->pid = kth->ktr_pid;
 579                 TAILQ_INSERT_TAIL(&trace_procs, pi, info);
 580                 return (1);
 581
 582         case KTR_PROCDTOR:
 583                 TAILQ_FOREACH(pi, &trace_procs, info) {
 584                         if (pi->pid == kth->ktr_pid) {
 585                                 TAILQ_REMOVE(&trace_procs, pi, info);
 586                                 free(pi);
 587                                 break;
 588                         }
 589                 }
 590                 return (1);
 591         }
 592
 593         return (0);
 594 }
 595
 596 u_int
 597 findabi(struct ktr_header *kth)
 598 {
 599         struct proc_info *pi;
 600
 601         TAILQ_FOREACH(pi, &trace_procs, info) {
 602                 if (pi->pid == kth->ktr_pid) {
 603                         return (pi->sv_flags);
 604                 }
 605         }
 606         return (0);
 607 }
 608
 609 void
 610 dumpheader(struct ktr_header *kth, u_int sv_flags)
 611 {
 612         static char unknown[64];
 613         static struct timeval prevtime, prevtime_e;
 614         struct timeval temp;
 615         const char *abi;
 616         const char *arch;
 617         const char *type;
 618         const char *sign;
 619
 620         switch (kth->ktr_type) {
 621         case KTR_SYSCALL:
 622                 type = "CALL";
 623                 break;
 624         case KTR_SYSRET:
 625                 type = "RET ";
 626                 break;
 627         case KTR_NAMEI:
 628                 type = "NAMI";
 629                 break;
 630         case KTR_GENIO:
 631                 type = "GIO ";
 632                 break;
 633         case KTR_PSIG:
 634                 type = "PSIG";
 635                 break;
 636         case KTR_CSW:
 637                 type = "CSW ";
 638                 break;
 639         case KTR_USER:
 640                 type = "USER";
 641                 break;
 642         case KTR_STRUCT:
 643         case KTR_STRUCT_ARRAY:
 644                 type = "STRU";
 645                 break;
 646         case KTR_SYSCTL:
 647                 type = "SCTL";
 648                 break;
 649         case KTR_CAPFAIL:
 650                 type = "CAP ";
 651                 break;
 652         case KTR_FAULT:
 653                 type = "PFLT";
 654                 break;
 655         case KTR_FAULTEND:
 656                 type = "PRET";
 657                 break;
 658         default:
 659                 sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
 660                 type = unknown;
 661         }
 662
 663         /*
 664          * The ktr_tid field was previously the ktr_buffer field, which held
 665          * the kernel pointer value for the buffer associated with data
 666          * following the record header.  It now holds a threadid, but only
 667          * for trace files after the change.  Older trace files still contain
 668          * kernel pointers.  Detect this and suppress the results by printing
 669          * negative tid's as 0.
 670          */
 671         if (threads)
 672                 printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid,
 673                     kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0,
 674                     MAXCOMLEN, kth->ktr_comm);
 675         else
 676                 printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN,
 677                     kth->ktr_comm);
 678         if (timestamp) {
 679                 if (timestamp & TIMESTAMP_ABSOLUTE) {
 680                         printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
 681                             kth->ktr_time.tv_usec);
 682                 }
 683                 if (timestamp & TIMESTAMP_ELAPSED) {
 684                         if (prevtime_e.tv_sec == 0)
 685                                 prevtime_e = kth->ktr_time;
 686                         timersub(&kth->ktr_time, &prevtime_e, &temp);
 687                         printf("%jd.%06ld ", (intmax_t)temp.tv_sec,
 688                             temp.tv_usec);
 689                 }
 690                 if (timestamp & TIMESTAMP_RELATIVE) {
 691                         if (prevtime.tv_sec == 0)
 692                                 prevtime = kth->ktr_time;
 693                         if (timercmp(&kth->ktr_time, &prevtime, <)) {
 694                                 timersub(&prevtime, &kth->ktr_time, &temp);
 695                                 sign = "-";
 696                         } else {
 697                                 timersub(&kth->ktr_time, &prevtime, &temp);
 698                                 sign = "";
 699                         }
 700                         prevtime = kth->ktr_time;
 701                         printf("%s%jd.%06ld ", sign, (intmax_t)temp.tv_sec,
 702                             temp.tv_usec);
 703                 }
 704         }
 705         printf("%s  ", type);
 706         if (abiflag != 0) {
 707                 switch (sv_flags & SV_ABI_MASK) {
 708                 case SV_ABI_LINUX:
 709                         abi = "L";
 710                         break;
 711                 case SV_ABI_FREEBSD:
 712                         abi = "F";
 713                         break;
 714                 default:
 715                         abi = "U";
 716                         break;
 717                 }
 718
 719                 if ((sv_flags & SV_LP64) != 0)
 720                         arch = "64";
 721                 else if ((sv_flags & SV_ILP32) != 0)
 722                         arch = "32";
 723                 else
 724                         arch = "00";
 725
 726                 printf("%s%s  ", abi, arch);
 727         }
 728 }
 729
 730 #include <sys/syscall.h>
 731
 732 static void
 733 ioctlname(unsigned long val)
 734 {
 735         const char *str;
 736
 737         str = sysdecode_ioctlname(val);
 738         if (str != NULL)
 739                 printf("%s", str);
 740         else if (decimal)
 741                 printf("%lu", val);
 742         else
 743                 printf("%#lx", val);
 744 }
 745
 746 static enum sysdecode_abi
 747 syscallabi(u_int sv_flags)
 748 {
 749
 750         if (sv_flags == 0)
 751                 return (SYSDECODE_ABI_FREEBSD);
 752         switch (sv_flags & SV_ABI_MASK) {
 753         case SV_ABI_FREEBSD:
 754                 return (SYSDECODE_ABI_FREEBSD);
 755         case SV_ABI_LINUX:
 756 #ifdef __LP64__
 757                 if (sv_flags & SV_ILP32)
 758                         return (SYSDECODE_ABI_LINUX32);
 759 #endif
 760                 return (SYSDECODE_ABI_LINUX);
 761         default:
 762                 return (SYSDECODE_ABI_UNKNOWN);
 763         }
 764 }
 765
 766 static void
 767 syscallname(u_int code, u_int sv_flags)
 768 {
 769         const char *name;
 770
 771         name = sysdecode_syscallname(syscallabi(sv_flags), code);
 772         if (name == NULL)
 773                 printf("[%d]", code);
 774         else {
 775                 printf("%s", name);
 776                 if (syscallno)
 777                         printf("[%d]", code);
 778         }
 779 }
 780
 781 static void
 782 print_signal(int signo)
 783 {
 784         const char *signame;
 785
 786         signame = sysdecode_signal(signo);
 787         if (signame != NULL)
 788                 printf("%s", signame);
 789         else
 790                 printf("SIG %d", signo);
 791 }
 792
 793 void
 794 ktrsyscall(struct ktr_syscall *ktr, u_int sv_flags)
 795 {
 796         int narg = ktr->ktr_narg;
 797         register_t *ip, *first;
 798         intmax_t arg;
 799         int quad_align, quad_slots;
 800
 801         syscallname(ktr->ktr_code, sv_flags);
 802         ip = first = &ktr->ktr_args[0];
 803         if (narg) {
 804                 char c = '(';
 805                 if (fancy &&
 806                     (sv_flags == 0 ||
 807                     (sv_flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) {
 808                         quad_align = 0;
 809                         if (sv_flags & SV_ILP32) {
 810 #ifdef __powerpc__
 811                                 quad_align = 1;
 812 #endif
 813                                 quad_slots = 2;
 814                         } else
 815                                 quad_slots = 1;
 816                         switch (ktr->ktr_code) {
 817                         case SYS_bindat:
 818                         case SYS_chflagsat:
 819                         case SYS_connectat:
 820                         case SYS_faccessat:
 821                         case SYS_fchmodat:
 822                         case SYS_fchownat:
 823                         case SYS_fstatat:
 824                         case SYS_futimesat:
 825                         case SYS_linkat:
 826                         case SYS_mkdirat:
 827                         case SYS_mkfifoat:
 828                         case SYS_mknodat:
 829                         case SYS_openat:
 830                         case SYS_readlinkat:
 831                         case SYS_renameat:
 832                         case SYS_unlinkat:
 833                         case SYS_utimensat:
 834                                 putchar('(');
 835                                 print_integer_arg_valid(sysdecode_atfd, *ip);
 836                                 c = ',';
 837                                 ip++;
 838                                 narg--;
 839                                 break;
 840                         }
 841                         switch (ktr->ktr_code) {
 842                         case SYS_ioctl: {
 843                                 print_number(ip, narg, c);
 844                                 putchar(c);
 845                                 ioctlname(*ip);
 846                                 c = ',';
 847                                 ip++;
 848                                 narg--;
 849                                 break;
 850                         }
 851                         case SYS_ptrace:
 852                                 putchar('(');
 853                                 print_integer_arg(sysdecode_ptrace_request, *ip);
 854                                 c = ',';
 855                                 ip++;
 856                                 narg--;
 857                                 break;
 858                         case SYS_access:
 859                         case SYS_eaccess:
 860                         case SYS_faccessat:
 861                                 print_number(ip, narg, c);
 862                                 putchar(',');
 863                                 print_mask_arg(sysdecode_access_mode, *ip);
 864                                 ip++;
 865                                 narg--;
 866                                 break;
 867                         case SYS_open:
 868                         case SYS_openat:
 869                                 print_number(ip, narg, c);
 870                                 putchar(',');
 871                                 print_mask_arg(sysdecode_open_flags, ip[0]);
 872                                 if ((ip[0] & O_CREAT) == O_CREAT) {
 873                                         putchar(',');
 874                                         decode_filemode(ip[1]);
 875                                 }
 876                                 ip += 2;
 877                                 narg -= 2;
 878                                 break;
 879                         case SYS_wait4:
 880                                 print_number(ip, narg, c);
 881                                 print_number(ip, narg, c);
 882                                 putchar(',');
 883                                 print_mask_arg0(sysdecode_wait4_options, *ip);
 884                                 ip++;
 885                                 narg--;
 886                                 break;
 887                         case SYS_wait6:
 888                                 putchar('(');
 889                                 print_integer_arg(sysdecode_idtype, *ip);
 890                                 c = ',';
 891                                 ip++;
 892                                 narg--;
 893                                 print_number64(first, ip, narg, c);
 894                                 print_number(ip, narg, c);
 895                                 putchar(',');
 896                                 print_mask_arg(sysdecode_wait6_options, *ip);
 897                                 ip++;
 898                                 narg--;
 899                                 break;
 900                         case SYS_chmod:
 901                         case SYS_fchmod:
 902                         case SYS_lchmod:
 903                         case SYS_fchmodat:
 904                                 print_number(ip, narg, c);
 905                                 putchar(',');
 906                                 decode_filemode(*ip);
 907                                 ip++;
 908                                 narg--;
 909                                 break;
 910                         case SYS_mknodat:
 911                                 print_number(ip, narg, c);
 912                                 putchar(',');
 913                                 decode_filemode(*ip);
 914                                 ip++;
 915                                 narg--;
 916                                 break;
 917                         case SYS_getfsstat:
 918                                 print_number(ip, narg, c);
 919                                 print_number(ip, narg, c);
 920                                 putchar(',');
 921                                 print_integer_arg(sysdecode_getfsstat_mode, *ip);
 922                                 ip++;
 923                                 narg--;
 924                                 break;
 925                         case SYS_mount:
 926                                 print_number(ip, narg, c);
 927                                 print_number(ip, narg, c);
 928                                 putchar(',');
 929                                 print_mask_arg(sysdecode_mount_flags, *ip);
 930                                 ip++;
 931                                 narg--;
 932                                 break;
 933                         case SYS_unmount:
 934                                 print_number(ip, narg, c);
 935                                 putchar(',');
 936                                 print_mask_arg(sysdecode_mount_flags, *ip);
 937                                 ip++;
 938                                 narg--;
 939                                 break;
 940                         case SYS_recvmsg:
 941                         case SYS_sendmsg:
 942                                 print_number(ip, narg, c);
 943                                 print_number(ip, narg, c);
 944                                 putchar(',');
 945                                 print_mask_arg0(sysdecode_msg_flags, *ip);
 946                                 ip++;
 947                                 narg--;
 948                                 break;
 949                         case SYS_recvfrom:
 950                         case SYS_sendto:
 951                                 print_number(ip, narg, c);
 952                                 print_number(ip, narg, c);
 953                                 print_number(ip, narg, c);
 954                                 putchar(',');
 955                                 print_mask_arg0(sysdecode_msg_flags, *ip);
 956                                 ip++;
 957                                 narg--;
 958                                 break;
 959                         case SYS_chflags:
 960                         case SYS_chflagsat:
 961                         case SYS_fchflags:
 962                         case SYS_lchflags:
 963                                 print_number(ip, narg, c);
 964                                 putchar(',');
 965                                 decode_fileflags(*ip);
 966                                 ip++;
 967                                 narg--;
 968                                 break;
 969                         case SYS_kill:
 970                                 print_number(ip, narg, c);
 971                                 putchar(',');
 972                                 print_signal(*ip);
 973                                 ip++;
 974                                 narg--;
 975                                 break;
 976                         case SYS_reboot:
 977                                 putchar('(');
 978                                 print_mask_arg(sysdecode_reboot_howto, *ip);
 979                                 ip++;
 980                                 narg--;
 981                                 break;
 982                         case SYS_umask:
 983                                 putchar('(');
 984                                 decode_filemode(*ip);
 985                                 ip++;
 986                                 narg--;
 987                                 break;
 988                         case SYS_msync:
 989                                 print_number(ip, narg, c);
 990                                 print_number(ip, narg, c);
 991                                 putchar(',');
 992                                 print_mask_arg(sysdecode_msync_flags, *ip);
 993                                 ip++;
 994                                 narg--;
 995                                 break;
 996 #ifdef SYS_freebsd6_mmap
 997                         case SYS_freebsd6_mmap:
 998                                 print_number(ip, narg, c);
 999                                 print_number(ip, narg, c);
1000                                 putchar(',');
1001                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1002                                 putchar(',');
1003                                 ip++;
1004                                 narg--;
1005                                 print_mask_arg(sysdecode_mmap_flags, *ip);
1006                                 ip++;
1007                                 narg--;
1008                                 break;
1009 #endif
1010                         case SYS_mmap:
1011                                 print_number(ip, narg, c);
1012                                 print_number(ip, narg, c);
1013                                 putchar(',');
1014                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1015                                 putchar(',');
1016                                 ip++;
1017                                 narg--;
1018                                 print_mask_arg(sysdecode_mmap_flags, *ip);
1019                                 ip++;
1020                                 narg--;
1021                                 break;
1022                         case SYS_mprotect:
1023                                 print_number(ip, narg, c);
1024                                 print_number(ip, narg, c);
1025                                 putchar(',');
1026                                 print_mask_arg(sysdecode_mmap_prot, *ip);
1027                                 ip++;
1028                                 narg--;
1029                                 break;
1030                         case SYS_madvise:
1031                                 print_number(ip, narg, c);
1032                                 print_number(ip, narg, c);
1033                                 putchar(',');
1034                                 print_integer_arg(sysdecode_madvice, *ip);
1035                                 ip++;
1036                                 narg--;
1037                                 break;
1038                         case SYS_pathconf:
1039                         case SYS_lpathconf:
1040                         case SYS_fpathconf:
1041                                 print_number(ip, narg, c);
1042                                 putchar(',');
1043                                 print_integer_arg(sysdecode_pathconf_name, *ip);
1044                                 ip++;
1045                                 narg--;
1046                                 break;
1047                         case SYS_getpriority:
1048                         case SYS_setpriority:
1049                                 putchar('(');
1050                                 print_integer_arg(sysdecode_prio_which, *ip);
1051                                 c = ',';
1052                                 ip++;
1053                                 narg--;
1054                                 break;
1055                         case SYS_fcntl:
1056                                 print_number(ip, narg, c);
1057                                 putchar(',');
1058                                 print_integer_arg(sysdecode_fcntl_cmd, ip[0]);
1059                                 if (sysdecode_fcntl_arg_p(ip[0])) {
1060                                         putchar(',');
1061                                         if (ip[0] == F_SETFL)
1062                                                 print_mask_arg(
1063                                                     sysdecode_fcntl_fileflags,
1064                                                         ip[1]);
1065                                         else
1066                                                 sysdecode_fcntl_arg(stdout,
1067                                                     ip[0], ip[1],
1068                                                     decimal ? 10 : 16);
1069                                 }
1070                                 ip += 2;
1071                                 narg -= 2;
1072                                 break;
1073                         case SYS_socket: {
1074                                 int sockdomain;
1075                                 putchar('(');
1076                                 sockdomain = *ip;
1077                                 print_integer_arg(sysdecode_socketdomain,
1078                                     sockdomain);
1079                                 ip++;
1080                                 narg--;
1081                                 putchar(',');
1082                                 print_mask_arg(sysdecode_socket_type, *ip);
1083                                 ip++;
1084                                 narg--;
1085                                 if (sockdomain == PF_INET ||
1086                                     sockdomain == PF_INET6) {
1087                                         putchar(',');
1088                                         print_integer_arg(sysdecode_ipproto,
1089                                             *ip);
1090                                         ip++;
1091                                         narg--;
1092                                 }
1093                                 c = ',';
1094                                 break;
1095                         }
1096                         case SYS_setsockopt:
1097                         case SYS_getsockopt: {
1098                                 const char *str;
1099
1100                                 print_number(ip, narg, c);
1101                                 putchar(',');
1102                                 print_integer_arg_valid(sysdecode_sockopt_level,
1103                                     *ip);
1104                                 str = sysdecode_sockopt_name(ip[0], ip[1]);
1105                                 if (str != NULL) {
1106                                         printf(",%s", str);
1107                                         ip++;
1108                                         narg--;
1109                                 }
1110                                 ip++;
1111                                 narg--;
1112                                 break;
1113                         }
1114 #ifdef SYS_freebsd6_lseek
1115                         case SYS_freebsd6_lseek:
1116                                 print_number(ip, narg, c);
1117                                 /* Hidden 'pad' argument, not in lseek(2) */
1118                                 print_number(ip, narg, c);
1119                                 print_number64(first, ip, narg, c);
1120                                 putchar(',');
1121                                 print_integer_arg(sysdecode_whence, *ip);
1122                                 ip++;
1123                                 narg--;
1124                                 break;
1125 #endif
1126                         case SYS_lseek:
1127                                 print_number(ip, narg, c);
1128                                 print_number64(first, ip, narg, c);
1129                                 putchar(',');
1130                                 print_integer_arg(sysdecode_whence, *ip);
1131                                 ip++;
1132                                 narg--;
1133                                 break;
1134                         case SYS_flock:
1135                                 print_number(ip, narg, c);
1136                                 putchar(',');
1137                                 print_mask_arg(sysdecode_flock_operation, *ip);
1138                                 ip++;
1139                                 narg--;
1140                                 break;
1141                         case SYS_mkfifo:
1142                         case SYS_mkfifoat:
1143                         case SYS_mkdir:
1144                         case SYS_mkdirat:
1145                                 print_number(ip, narg, c);
1146                                 putchar(',');
1147                                 decode_filemode(*ip);
1148                                 ip++;
1149                                 narg--;
1150                                 break;
1151                         case SYS_shutdown:
1152                                 print_number(ip, narg, c);
1153                                 putchar(',');
1154                                 print_integer_arg(sysdecode_shutdown_how, *ip);
1155                                 ip++;
1156                                 narg--;
1157                                 break;
1158                         case SYS_socketpair:
1159                                 putchar('(');
1160                                 print_integer_arg(sysdecode_socketdomain, *ip);
1161                                 ip++;
1162                                 narg--;
1163                                 putchar(',');
1164                                 print_mask_arg(sysdecode_socket_type, *ip);
1165                                 ip++;
1166                                 narg--;
1167                                 c = ',';
1168                                 break;
1169                         case SYS_getrlimit:
1170                         case SYS_setrlimit:
1171                                 putchar('(');
1172                                 print_integer_arg(sysdecode_rlimit, *ip);
1173                                 ip++;
1174                                 narg--;
1175                                 c = ',';
1176                                 break;
1177                         case SYS_getrusage:
1178                                 putchar('(');
1179                                 print_integer_arg(sysdecode_getrusage_who, *ip);
1180                                 ip++;
1181                                 narg--;
1182                                 c = ',';
1183                                 break;
1184                         case SYS_quotactl:
1185                                 print_number(ip, narg, c);
1186                                 putchar(',');
1187                                 if (!sysdecode_quotactl_cmd(stdout, *ip)) {
1188                                         if (decimal)
1189                                                 printf("<invalid=%d>", (int)*ip);
1190                                         else
1191                                                 printf("<invalid=%#x>",
1192                                                     (int)*ip);
1193                                 }
1194                                 ip++;
1195                                 narg--;
1196                                 c = ',';
1197                                 break;
1198                         case SYS_nfssvc:
1199                                 putchar('(');
1200                                 print_integer_arg(sysdecode_nfssvc_flags, *ip);
1201                                 ip++;
1202                                 narg--;
1203                                 c = ',';
1204                                 break;
1205                         case SYS_rtprio:
1206                         case SYS_rtprio_thread:
1207                                 putchar('(');
1208                                 print_integer_arg(sysdecode_rtprio_function,
1209                                     *ip);
1210                                 ip++;
1211                                 narg--;
1212                                 c = ',';
1213                                 break;
1214                         case SYS___semctl:
1215                                 print_number(ip, narg, c);
1216                                 print_number(ip, narg, c);
1217                                 putchar(',');
1218                                 print_integer_arg(sysdecode_semctl_cmd, *ip);
1219                                 ip++;
1220                                 narg--;
1221                                 break;
1222                         case SYS_semget:
1223                                 print_number(ip, narg, c);
1224                                 print_number(ip, narg, c);
1225                                 putchar(',');
1226                                 print_mask_arg(sysdecode_semget_flags, *ip);
1227                                 ip++;
1228                                 narg--;
1229                                 break;
1230                         case SYS_msgctl:
1231                                 print_number(ip, narg, c);
1232                                 putchar(',');
1233                                 print_integer_arg(sysdecode_msgctl_cmd, *ip);
1234                                 ip++;
1235                                 narg--;
1236                                 break;
1237                         case SYS_shmat:
1238                                 print_number(ip, narg, c);
1239                                 print_number(ip, narg, c);
1240                                 putchar(',');
1241                                 print_mask_arg(sysdecode_shmat_flags, *ip);
1242                                 ip++;
1243                                 narg--;
1244                                 break;
1245                         case SYS_shmctl:
1246                                 print_number(ip, narg, c);
1247                                 putchar(',');
1248                                 print_integer_arg(sysdecode_shmctl_cmd, *ip);
1249                                 ip++;
1250                                 narg--;
1251                                 break;
1252 #ifdef SYS_freebsd12_shm_open
1253                         case SYS_freebsd12_shm_open:
1254                                 if (ip[0] == (uintptr_t)SHM_ANON) {
1255                                         printf("(SHM_ANON");
1256                                         ip++;
1257                                 } else {
1258                                         print_number(ip, narg, c);
1259                                 }
1260                                 putchar(',');
1261                                 print_mask_arg(sysdecode_open_flags, ip[0]);
1262                                 putchar(',');
1263                                 decode_filemode(ip[1]);
1264                                 ip += 2;
1265                                 narg -= 2;
1266                                 break;
1267 #endif
1268                         case SYS_shm_open2:
1269                                 if (ip[0] == (uintptr_t)SHM_ANON) {
1270                                         printf("(SHM_ANON");
1271                                         ip++;
1272                                 } else {
1273                                         print_number(ip, narg, c);
1274                                 }
1275                                 putchar(',');
1276                                 print_mask_arg(sysdecode_open_flags, ip[0]);
1277                                 putchar(',');
1278                                 decode_filemode(ip[1]);
1279                                 putchar(',');
1280                                 print_mask_arg(sysdecode_shmflags, ip[2]);
1281                                 ip += 3;
1282                                 narg -= 3;
1283                                 break;
1284                         case SYS_minherit:
1285                                 print_number(ip, narg, c);
1286                                 print_number(ip, narg, c);
1287                                 putchar(',');
1288                                 print_integer_arg(sysdecode_minherit_inherit,
1289                                     *ip);
1290                                 ip++;
1291                                 narg--;
1292                                 break;
1293                         case SYS_rfork:
1294                                 putchar('(');
1295                                 print_mask_arg(sysdecode_rfork_flags, *ip);
1296                                 ip++;
1297                                 narg--;
1298                                 c = ',';
1299                                 break;
1300                         case SYS_lio_listio:
1301                                 putchar('(');
1302                                 print_integer_arg(sysdecode_lio_listio_mode,
1303                                     *ip);
1304                                 ip++;
1305                                 narg--;
1306                                 c = ',';
1307                                 break;
1308                         case SYS_mlockall:
1309                                 putchar('(');
1310                                 print_mask_arg(sysdecode_mlockall_flags, *ip);
1311                                 ip++;
1312                                 narg--;
1313                                 break;
1314                         case SYS_sched_setscheduler:
1315                                 print_number(ip, narg, c);
1316                                 putchar(',');
1317                                 print_integer_arg(sysdecode_scheduler_policy,
1318                                     *ip);
1319                                 ip++;
1320                                 narg--;
1321                                 break;
1322                         case SYS_sched_get_priority_max:
1323                         case SYS_sched_get_priority_min:
1324                                 putchar('(');
1325                                 print_integer_arg(sysdecode_scheduler_policy,
1326                                     *ip);
1327                                 ip++;
1328                                 narg--;
1329                                 break;
1330                         case SYS_sendfile:
1331                                 print_number(ip, narg, c);
1332                                 print_number(ip, narg, c);
1333                                 print_number(ip, narg, c);
1334                                 print_number(ip, narg, c);
1335                                 print_number(ip, narg, c);
1336                                 print_number(ip, narg, c);
1337                                 putchar(',');
1338                                 print_mask_arg(sysdecode_sendfile_flags, *ip);
1339                                 ip++;
1340                                 narg--;
1341                                 break;
1342                         case SYS_kldsym:
1343                                 print_number(ip, narg, c);
1344                                 putchar(',');
1345                                 print_integer_arg(sysdecode_kldsym_cmd, *ip);
1346                                 ip++;
1347                                 narg--;
1348                                 break;
1349                         case SYS_sigprocmask:
1350                                 putchar('(');
1351                                 print_integer_arg(sysdecode_sigprocmask_how,
1352                                     *ip);
1353                                 ip++;
1354                                 narg--;
1355                                 c = ',';
1356                                 break;
1357                         case SYS___acl_get_file:
1358                         case SYS___acl_set_file:
1359                         case SYS___acl_get_fd:
1360                         case SYS___acl_set_fd:
1361                         case SYS___acl_delete_file:
1362                         case SYS___acl_delete_fd:
1363                         case SYS___acl_aclcheck_file:
1364                         case SYS___acl_aclcheck_fd:
1365                         case SYS___acl_get_link:
1366                         case SYS___acl_set_link:
1367                         case SYS___acl_delete_link:
1368                         case SYS___acl_aclcheck_link:
1369                                 print_number(ip, narg, c);
1370                                 putchar(',');
1371                                 print_integer_arg(sysdecode_acltype, *ip);
1372                                 ip++;
1373                                 narg--;
1374                                 break;
1375                         case SYS_sigaction:
1376                                 putchar('(');
1377                                 print_signal(*ip);
1378                                 ip++;
1379                                 narg--;
1380                                 c = ',';
1381                                 break;
1382                         case SYS_extattrctl:
1383                                 print_number(ip, narg, c);
1384                                 putchar(',');
1385                                 print_integer_arg(sysdecode_extattrnamespace,
1386                                     *ip);
1387                                 ip++;
1388                                 narg--;
1389                                 break;
1390                         case SYS_nmount:
1391                                 print_number(ip, narg, c);
1392                                 print_number(ip, narg, c);
1393                                 putchar(',');
1394                                 print_mask_arg(sysdecode_mount_flags, *ip);
1395                                 ip++;
1396                                 narg--;
1397                                 break;
1398                         case SYS_thr_create:
1399                                 print_number(ip, narg, c);
1400                                 print_number(ip, narg, c);
1401                                 putchar(',');
1402                                 print_mask_arg(sysdecode_thr_create_flags, *ip);
1403                                 ip++;
1404                                 narg--;
1405                                 break;
1406                         case SYS_thr_kill:
1407                                 print_number(ip, narg, c);
1408                                 putchar(',');
1409                                 print_signal(*ip);
1410                                 ip++;
1411                                 narg--;
1412                                 break;
1413                         case SYS_kldunloadf:
1414                                 print_number(ip, narg, c);
1415                                 putchar(',');
1416                                 print_integer_arg(sysdecode_kldunload_flags,
1417                                     *ip);
1418                                 ip++;
1419                                 narg--;
1420                                 break;
1421                         case SYS_linkat:
1422                         case SYS_renameat:
1423                         case SYS_symlinkat:
1424                                 print_number(ip, narg, c);
1425                                 putchar(',');
1426                                 print_integer_arg_valid(sysdecode_atfd, *ip);
1427                                 ip++;
1428                                 narg--;
1429                                 print_number(ip, narg, c);
1430                                 break;
1431                         case SYS_cap_fcntls_limit:
1432                                 print_number(ip, narg, c);
1433                                 putchar(',');
1434                                 arg = *ip;
1435                                 ip++;
1436                                 narg--;
1437                                 print_mask_arg32(sysdecode_cap_fcntlrights, arg);
1438                                 break;
1439                         case SYS_posix_fadvise:
1440                                 print_number(ip, narg, c);
1441                                 print_number(ip, narg, c);
1442                                 print_number(ip, narg, c);
1443                                 (void)putchar(',');
1444                                 print_integer_arg(sysdecode_fadvice, *ip);
1445                                 ip++;
1446                                 narg--;
1447                                 break;
1448                         case SYS_procctl:
1449                                 putchar('(');
1450                                 print_integer_arg(sysdecode_idtype, *ip);
1451                                 c = ',';
1452                                 ip++;
1453                                 narg--;
1454                                 print_number64(first, ip, narg, c);
1455                                 putchar(',');
1456                                 print_integer_arg(sysdecode_procctl_cmd, *ip);
1457                                 ip++;
1458                                 narg--;
1459                                 break;
1460                         case SYS__umtx_op: {
1461                                 int op;
1462
1463                                 print_number(ip, narg, c);
1464                                 putchar(',');
1465                                 if (print_mask_arg_part(sysdecode_umtx_op_flags,
1466                                     *ip, &op))
1467                                         putchar('|');
1468                                 print_integer_arg(sysdecode_umtx_op, op);
1469                                 putchar('>');
1470                                 switch (*ip) {
1471                                 case UMTX_OP_CV_WAIT:
1472                                         ip++;
1473                                         narg--;
1474                                         putchar(',');
1475                                         print_mask_argul(
1476                                             sysdecode_umtx_cvwait_flags, *ip);
1477                                         break;
1478                                 case UMTX_OP_RW_RDLOCK:
1479                                         ip++;
1480                                         narg--;
1481                                         putchar(',');
1482                                         print_mask_argul(
1483                                             sysdecode_umtx_rwlock_flags, *ip);
1484                                         break;
1485                                 }
1486                                 ip++;
1487                                 narg--;
1488                                 break;
1489                         }
1490                         case SYS_ftruncate:
1491                         case SYS_truncate:
1492                                 print_number(ip, narg, c);
1493                                 print_number64(first, ip, narg, c);
1494                                 break;
1495                         case SYS_fchownat:
1496                                 print_number(ip, narg, c);
1497                                 print_number(ip, narg, c);
1498                                 print_number(ip, narg, c);
1499                                 break;
1500                         case SYS_fstatat:
1501                         case SYS_utimensat:
1502                                 print_number(ip, narg, c);
1503                                 print_number(ip, narg, c);
1504                                 break;
1505                         case SYS_unlinkat:
1506                                 print_number(ip, narg, c);
1507                                 break;
1508                         case SYS_sysarch:
1509                                 putchar('(');
1510                                 print_integer_arg(sysdecode_sysarch_number, *ip);
1511                                 ip++;
1512                                 narg--;
1513                                 c = ',';
1514                                 break;
1515                         }
1516                         switch (ktr->ktr_code) {
1517                         case SYS_chflagsat:
1518                         case SYS_fchownat:
1519                         case SYS_faccessat:
1520                         case SYS_fchmodat:
1521                         case SYS_fstatat:
1522                         case SYS_linkat:
1523                         case SYS_unlinkat:
1524                         case SYS_utimensat:
1525                                 putchar(',');
1526                                 print_mask_arg0(sysdecode_atflags, *ip);
1527                                 ip++;
1528                                 narg--;
1529                                 break;
1530                         }
1531                 }
1532                 while (narg > 0) {
1533                         print_number(ip, narg, c);
1534                 }
1535                 putchar(')');
1536         }
1537         putchar('\n');
1538 }
1539
1540 void
1541 ktrsysret(struct ktr_sysret *ktr, u_int sv_flags)
1542 {
1543         register_t ret = ktr->ktr_retval;
1544         int error = ktr->ktr_error;
1545
1546         syscallname(ktr->ktr_code, sv_flags);
1547         printf(" ");
1548
1549         if (error == 0) {
1550                 if (fancy) {
1551                         printf("%ld", (long)ret);
1552                         if (ret < 0 || ret > 9)
1553                                 printf("/%#lx", (unsigned long)ret);
1554                 } else {
1555                         if (decimal)
1556                                 printf("%ld", (long)ret);
1557                         else
1558                                 printf("%#lx", (unsigned long)ret);
1559                 }
1560         } else if (error == ERESTART)
1561                 printf("RESTART");
1562         else if (error == EJUSTRETURN)
1563                 printf("JUSTRETURN");
1564         else {
1565                 printf("-1 errno %d", sysdecode_freebsd_to_abi_errno(
1566                     syscallabi(sv_flags), error));
1567                 if (fancy)
1568                         printf(" %s", strerror(ktr->ktr_error));
1569         }
1570         putchar('\n');
1571 }
1572
1573 void
1574 ktrnamei(char *cp, int len)
1575 {
1576         printf("\"%.*s\"\n", len, cp);
1577 }
1578
1579 void
1580 hexdump(char *p, int len, int screenwidth)
1581 {
1582         int n, i;
1583         int width;
1584
1585         width = 0;
1586         do {
1587                 width += 2;
1588                 i = 13;                 /* base offset */
1589                 i += (width / 2) + 1;   /* spaces every second byte */
1590                 i += (width * 2);       /* width of bytes */
1591                 i += 3;                 /* "  |" */
1592                 i += width;             /* each byte */
1593                 i += 1;                 /* "|" */
1594         } while (i < screenwidth);
1595         width -= 2;
1596
1597         for (n = 0; n < len; n += width) {
1598                 for (i = n; i < n + width; i++) {
1599                         if ((i % width) == 0) { /* beginning of line */
1600                                 printf("       0x%04x", i);
1601                         }
1602                         if ((i % 2) == 0) {
1603                                 printf(" ");
1604                         }
1605                         if (i < len)
1606                                 printf("%02x", p[i] & 0xff);
1607                         else
1608                                 printf("  ");
1609                 }
1610                 printf("  |");
1611                 for (i = n; i < n + width; i++) {
1612                         if (i >= len)
1613                                 break;
1614                         if (p[i] >= ' ' && p[i] <= '~')
1615                                 printf("%c", p[i]);
1616                         else
1617                                 printf(".");
1618                 }
1619                 printf("|\n");
1620         }
1621         if ((i % width) != 0)
1622                 printf("\n");
1623 }
1624
1625 void
1626 visdump(char *dp, int datalen, int screenwidth)
1627 {
1628         int col = 0;
1629         char *cp;
1630         int width;
1631         char visbuf[5];
1632
1633         printf("       \"");
1634         col = 8;
1635         for (;datalen > 0; datalen--, dp++) {
1636                 vis(visbuf, *dp, VIS_CSTYLE | VIS_NOLOCALE, *(dp+1));
1637                 cp = visbuf;
1638                 /*
1639                  * Keep track of printables and
1640                  * space chars (like fold(1)).
1641                  */
1642                 if (col == 0) {
1643                         putchar('\t');
1644                         col = 8;
1645                 }
1646                 switch(*cp) {
1647                 case '\n':
1648                         col = 0;
1649                         putchar('\n');
1650                         continue;
1651                 case '\t':
1652                         width = 8 - (col&07);
1653                         break;
1654                 default:
1655                         width = strlen(cp);
1656                 }
1657                 if (col + width > (screenwidth-2)) {
1658                         printf("\\\n\t");
1659                         col = 8;
1660                 }
1661                 col += width;
1662                 do {
1663                         putchar(*cp++);
1664                 } while (*cp);
1665         }
1666         if (col == 0)
1667                 printf("       ");
1668         printf("\"\n");
1669 }
1670
1671 void
1672 ktrgenio(struct ktr_genio *ktr, int len)
1673 {
1674         int datalen = len - sizeof (struct ktr_genio);
1675         char *dp = (char *)ktr + sizeof (struct ktr_genio);
1676         static int screenwidth = 0;
1677         int i, binary;
1678
1679         printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
1680                 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
1681                 datalen == 1 ? "" : "s");
1682         if (suppressdata)
1683                 return;
1684         if (screenwidth == 0) {
1685                 struct winsize ws;
1686
1687                 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1688                     ws.ws_col > 8)
1689                         screenwidth = ws.ws_col;
1690                 else
1691                         screenwidth = 80;
1692         }
1693         if (maxdata && datalen > maxdata)
1694                 datalen = maxdata;
1695
1696         for (i = 0, binary = 0; i < datalen && binary == 0; i++)  {
1697                 if (dp[i] >= 32 && dp[i] < 127)
1698                         continue;
1699                 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
1700                         continue;
1701                 binary = 1;
1702         }
1703         if (binary)
1704                 hexdump(dp, datalen, screenwidth);
1705         else
1706                 visdump(dp, datalen, screenwidth);
1707 }
1708
1709 void
1710 ktrpsig(struct ktr_psig *psig)
1711 {
1712         const char *str;
1713
1714         print_signal(psig->signo);
1715         if (psig->action == SIG_DFL) {
1716                 printf(" SIG_DFL");
1717         } else {
1718                 printf(" caught handler=0x%lx mask=0x%x",
1719                     (u_long)psig->action, psig->mask.__bits[0]);
1720         }
1721         printf(" code=");
1722         str = sysdecode_sigcode(psig->signo, psig->code);
1723         if (str != NULL)
1724                 printf("%s", str);
1725         else
1726                 printf("<invalid=%#x>", psig->code);
1727         putchar('\n');
1728 }
1729
1730 void
1731 ktrcsw_old(struct ktr_csw_old *cs)
1732 {
1733         printf("%s %s\n", cs->out ? "stop" : "resume",
1734                 cs->user ? "user" : "kernel");
1735 }
1736
1737 void
1738 ktrcsw(struct ktr_csw *cs)
1739 {
1740         printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
1741             cs->user ? "user" : "kernel", cs->wmesg);
1742 }
1743
1744 void
1745 ktruser(int len, void *p)
1746 {
1747         unsigned char *cp;
1748
1749         if (sysdecode_utrace(stdout, p, len)) {
1750                 printf("\n");
1751                 return;
1752         }
1753
1754         printf("%d ", len);
1755         cp = p;
1756         while (len--)
1757                 if (decimal)
1758                         printf(" %d", *cp++);
1759                 else
1760                         printf(" %02x", *cp++);
1761         printf("\n");
1762 }
1763
1764 void
1765 ktrcaprights(cap_rights_t *rightsp)
1766 {
1767
1768         printf("cap_rights_t ");
1769         sysdecode_cap_rights(stdout, rightsp);
1770         printf("\n");
1771 }
1772
1773 static void
1774 ktrtimeval(struct timeval *tv)
1775 {
1776
1777         printf("{%ld, %ld}", (long)tv->tv_sec, tv->tv_usec);
1778 }
1779
1780 void
1781 ktritimerval(struct itimerval *it)
1782 {
1783
1784         printf("itimerval { .interval = ");
1785         ktrtimeval(&it->it_interval);
1786         printf(", .value = ");
1787         ktrtimeval(&it->it_value);
1788         printf(" }\n");
1789 }
1790
1791 void
1792 ktrsockaddr(struct sockaddr *sa)
1793 {
1794 /*
1795  TODO: Support additional address families
1796         #include <netsmb/netbios.h>
1797         struct sockaddr_nb      *nb;
1798 */
1799         const char *str;
1800         char addr[64];
1801
1802         /*
1803          * note: ktrstruct() has already verified that sa points to a
1804          * buffer at least sizeof(struct sockaddr) bytes long and exactly
1805          * sa->sa_len bytes long.
1806          */
1807         printf("struct sockaddr { ");
1808         str = sysdecode_sockaddr_family(sa->sa_family);
1809         if (str != NULL)
1810                 printf("%s", str);
1811         else
1812                 printf("<invalid=%d>", sa->sa_family);
1813         printf(", ");
1814
1815 #define check_sockaddr_len(n)                                   \
1816         if (sa_##n.s##n##_len < sizeof(struct sockaddr_##n)) {  \
1817                 printf("invalid");                              \
1818                 break;                                          \
1819         }
1820
1821         switch(sa->sa_family) {
1822         case AF_INET: {
1823                 struct sockaddr_in sa_in;
1824
1825                 memset(&sa_in, 0, sizeof(sa_in));
1826                 memcpy(&sa_in, sa, sa->sa_len);
1827                 check_sockaddr_len(in);
1828                 inet_ntop(AF_INET, &sa_in.sin_addr, addr, sizeof addr);
1829                 printf("%s:%u", addr, ntohs(sa_in.sin_port));
1830                 break;
1831         }
1832         case AF_INET6: {
1833                 struct sockaddr_in6 sa_in6;
1834
1835                 memset(&sa_in6, 0, sizeof(sa_in6));
1836                 memcpy(&sa_in6, sa, sa->sa_len);
1837                 check_sockaddr_len(in6);
1838                 getnameinfo((struct sockaddr *)&sa_in6, sizeof(sa_in6),
1839                     addr, sizeof(addr), NULL, 0, NI_NUMERICHOST);
1840                 printf("[%s]:%u", addr, htons(sa_in6.sin6_port));
1841                 break;
1842         }
1843         case AF_UNIX: {
1844                 struct sockaddr_un sa_un;
1845
1846                 memset(&sa_un, 0, sizeof(sa_un));
1847                 memcpy(&sa_un, sa, sa->sa_len);
1848                 printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
1849                 break;
1850         }
1851         default:
1852                 printf("unknown address family");
1853         }
1854         printf(" }\n");
1855 }
1856
1857 void
1858 ktrstat(struct stat *statp)
1859 {
1860         char mode[12], timestr[PATH_MAX + 4];
1861         struct passwd *pwd;
1862         struct group  *grp;
1863         struct tm *tm;
1864
1865         /*
1866          * note: ktrstruct() has already verified that statp points to a
1867          * buffer exactly sizeof(struct stat) bytes long.
1868          */
1869         printf("struct stat {");
1870         printf("dev=%ju, ino=%ju, ",
1871                 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino);
1872         if (!resolv)
1873                 printf("mode=0%jo, ", (uintmax_t)statp->st_mode);
1874         else {
1875                 strmode(statp->st_mode, mode);
1876                 printf("mode=%s, ", mode);
1877         }
1878         printf("nlink=%ju, ", (uintmax_t)statp->st_nlink);
1879         if (!resolv) {
1880                 pwd = NULL;
1881         } else {
1882 #ifdef WITH_CASPER
1883                 if (cappwd != NULL)
1884                         pwd = cap_getpwuid(cappwd, statp->st_uid);
1885                 else
1886 #endif
1887                         pwd = getpwuid(statp->st_uid);
1888         }
1889         if (pwd == NULL)
1890                 printf("uid=%ju, ", (uintmax_t)statp->st_uid);
1891         else
1892                 printf("uid=\"%s\", ", pwd->pw_name);
1893         if (!resolv) {
1894                 grp = NULL;
1895         } else {
1896 #ifdef WITH_CASPER
1897                 if (capgrp != NULL)
1898                         grp = cap_getgrgid(capgrp, statp->st_gid);
1899                 else
1900 #endif
1901                         grp = getgrgid(statp->st_gid);
1902         }
1903         if (grp == NULL)
1904                 printf("gid=%ju, ", (uintmax_t)statp->st_gid);
1905         else
1906                 printf("gid=\"%s\", ", grp->gr_name);
1907         printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
1908         printf("atime=");
1909         if (!resolv)
1910                 printf("%jd", (intmax_t)statp->st_atim.tv_sec);
1911         else {
1912                 tm = localtime(&statp->st_atim.tv_sec);
1913                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1914                 printf("\"%s\"", timestr);
1915         }
1916         if (statp->st_atim.tv_nsec != 0)
1917                 printf(".%09ld, ", statp->st_atim.tv_nsec);
1918         else
1919                 printf(", ");
1920         printf("mtime=");
1921         if (!resolv)
1922                 printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
1923         else {
1924                 tm = localtime(&statp->st_mtim.tv_sec);
1925                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1926                 printf("\"%s\"", timestr);
1927         }
1928         if (statp->st_mtim.tv_nsec != 0)
1929                 printf(".%09ld, ", statp->st_mtim.tv_nsec);
1930         else
1931                 printf(", ");
1932         printf("ctime=");
1933         if (!resolv)
1934                 printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
1935         else {
1936                 tm = localtime(&statp->st_ctim.tv_sec);
1937                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1938                 printf("\"%s\"", timestr);
1939         }
1940         if (statp->st_ctim.tv_nsec != 0)
1941                 printf(".%09ld, ", statp->st_ctim.tv_nsec);
1942         else
1943                 printf(", ");
1944         printf("birthtime=");
1945         if (!resolv)
1946                 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
1947         else {
1948                 tm = localtime(&statp->st_birthtim.tv_sec);
1949                 strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1950                 printf("\"%s\"", timestr);
1951         }
1952         if (statp->st_birthtim.tv_nsec != 0)
1953                 printf(".%09ld, ", statp->st_birthtim.tv_nsec);
1954         else
1955                 printf(", ");
1956         printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
1957                 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
1958                 (intmax_t)statp->st_blocks, statp->st_flags);
1959         printf(" }\n");
1960 }
1961
1962 void
1963 ktrstruct(char *buf, size_t buflen)
1964 {
1965         char *name, *data;
1966         size_t namelen, datalen;
1967         int i;
1968         cap_rights_t rights;
1969         struct itimerval it;
1970         struct stat sb;
1971         struct sockaddr_storage ss;
1972
1973         for (name = buf, namelen = 0;
1974              namelen < buflen && name[namelen] != '\0';
1975              ++namelen)
1976                 /* nothing */;
1977         if (namelen == buflen)
1978                 goto invalid;
1979         if (name[namelen] != '\0')
1980                 goto invalid;
1981         data = buf + namelen + 1;
1982         datalen = buflen - namelen - 1;
1983         if (datalen == 0)
1984                 goto invalid;
1985         /* sanity check */
1986         for (i = 0; i < (int)namelen; ++i)
1987                 if (!isalpha(name[i]))
1988                         goto invalid;
1989         if (strcmp(name, "caprights") == 0) {
1990                 if (datalen != sizeof(cap_rights_t))
1991                         goto invalid;
1992                 memcpy(&rights, data, datalen);
1993                 ktrcaprights(&rights);
1994         } else if (strcmp(name, "itimerval") == 0) {
1995                 if (datalen != sizeof(struct itimerval))
1996                         goto invalid;
1997                 memcpy(&it, data, datalen);
1998                 ktritimerval(&it);
1999         } else if (strcmp(name, "stat") == 0) {
2000                 if (datalen != sizeof(struct stat))
2001                         goto invalid;
2002                 memcpy(&sb, data, datalen);
2003                 ktrstat(&sb);
2004         } else if (strcmp(name, "sockaddr") == 0) {
2005                 if (datalen > sizeof(ss))
2006                         goto invalid;
2007                 memcpy(&ss, data, datalen);
2008                 if (datalen != ss.ss_len)
2009                         goto invalid;
2010                 ktrsockaddr((struct sockaddr *)&ss);
2011         } else {
2012                 printf("unknown structure\n");
2013         }
2014         return;
2015 invalid:
2016         printf("invalid record\n");
2017 }
2018
2019 void
2020 ktrcapfail(struct ktr_cap_fail *ktr)
2021 {
2022         switch (ktr->cap_type) {
2023         case CAPFAIL_NOTCAPABLE:
2024                 /* operation on fd with insufficient capabilities */
2025                 printf("operation requires ");
2026                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2027                 printf(", descriptor holds ");
2028                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2029                 break;
2030         case CAPFAIL_INCREASE:
2031                 /* requested more capabilities than fd already has */
2032                 printf("attempt to increase capabilities from ");
2033                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2034                 printf(" to ");
2035                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2036                 break;
2037         case CAPFAIL_SYSCALL:
2038                 /* called restricted syscall */
2039                 printf("disallowed system call");
2040                 break;
2041         case CAPFAIL_LOOKUP:
2042                 /* absolute or AT_FDCWD path, ".." path, etc. */
2043                 printf("restricted VFS lookup");
2044                 break;
2045         default:
2046                 printf("unknown capability failure: ");
2047                 sysdecode_cap_rights(stdout, &ktr->cap_needed);
2048                 printf(" ");
2049                 sysdecode_cap_rights(stdout, &ktr->cap_held);
2050                 break;
2051         }
2052         printf("\n");
2053 }
2054
2055 void
2056 ktrfault(struct ktr_fault *ktr)
2057 {
2058
2059         printf("0x%jx ", (uintmax_t)ktr->vaddr);
2060         print_mask_arg(sysdecode_vmprot, ktr->type);
2061         printf("\n");
2062 }
2063
2064 void
2065 ktrfaultend(struct ktr_faultend *ktr)
2066 {
2067         const char *str;
2068
2069         str = sysdecode_vmresult(ktr->result);
2070         if (str != NULL)
2071                 printf("%s", str);
2072         else
2073                 printf("<invalid=%d>", ktr->result);
2074         printf("\n");
2075 }
2076
2077 void
2078 ktrkevent(struct kevent *kev)
2079 {
2080
2081         printf("{ ident=");
2082         switch (kev->filter) {
2083         case EVFILT_READ:
2084         case EVFILT_WRITE:
2085         case EVFILT_VNODE:
2086         case EVFILT_PROC:
2087         case EVFILT_TIMER:
2088         case EVFILT_PROCDESC:
2089         case EVFILT_EMPTY:
2090                 printf("%ju", (uintmax_t)kev->ident);
2091                 break;
2092         case EVFILT_SIGNAL:
2093                 print_signal(kev->ident);
2094                 break;
2095         default:
2096                 printf("%p", (void *)kev->ident);
2097         }
2098         printf(", filter=");
2099         print_integer_arg(sysdecode_kevent_filter, kev->filter);
2100         printf(", flags=");
2101         print_mask_arg0(sysdecode_kevent_flags, kev->flags);
2102         printf(", fflags=");
2103         sysdecode_kevent_fflags(stdout, kev->filter, kev->fflags,
2104             decimal ? 10 : 16);
2105         printf(", data=%#jx, udata=%p }", (uintmax_t)kev->data, kev->udata);
2106 }
2107
2108 void
2109 ktrstructarray(struct ktr_struct_array *ksa, size_t buflen)
2110 {
2111         struct kevent kev;
2112         char *name, *data;
2113         size_t namelen, datalen;
2114         int i;
2115         bool first;
2116
2117         buflen -= sizeof(*ksa);
2118         for (name = (char *)(ksa + 1), namelen = 0;
2119              namelen < buflen && name[namelen] != '\0';
2120              ++namelen)
2121                 /* nothing */;
2122         if (namelen == buflen)
2123                 goto invalid;
2124         if (name[namelen] != '\0')
2125                 goto invalid;
2126         /* sanity check */
2127         for (i = 0; i < (int)namelen; ++i)
2128                 if (!isalnum(name[i]) && name[i] != '_')
2129                         goto invalid;
2130         data = name + namelen + 1;
2131         datalen = buflen - namelen - 1;
2132         printf("struct %s[] = { ", name);
2133         first = true;
2134         for (; datalen >= ksa->struct_size;
2135             data += ksa->struct_size, datalen -= ksa->struct_size) {
2136                 if (!first)
2137                         printf("\n             ");
2138                 else
2139                         first = false;
2140                 if (strcmp(name, "kevent") == 0) {
2141                         if (ksa->struct_size != sizeof(kev))
2142                                 goto bad_size;
2143                         memcpy(&kev, data, sizeof(kev));
2144                         ktrkevent(&kev);
2145                 } else if (strcmp(name, "freebsd11_kevent") == 0) {
2146                         struct freebsd11_kevent kev11;
2147
2148                         if (ksa->struct_size != sizeof(kev11))
2149                                 goto bad_size;
2150                         memcpy(&kev11, data, sizeof(kev11));
2151                         memset(&kev, 0, sizeof(kev));
2152                         kev.ident = kev11.ident;
2153                         kev.filter = kev11.filter;
2154                         kev.flags = kev11.flags;
2155                         kev.fflags = kev11.fflags;
2156                         kev.data = kev11.data;
2157                         kev.udata = kev11.udata;
2158                         ktrkevent(&kev);
2159 #ifdef _WANT_KEVENT32
2160                 } else if (strcmp(name, "kevent32") == 0) {
2161                         struct kevent32 kev32;
2162
2163                         if (ksa->struct_size != sizeof(kev32))
2164                                 goto bad_size;
2165                         memcpy(&kev32, data, sizeof(kev32));
2166                         memset(&kev, 0, sizeof(kev));
2167                         kev.ident = kev32.ident;
2168                         kev.filter = kev32.filter;
2169                         kev.flags = kev32.flags;
2170                         kev.fflags = kev32.fflags;
2171 #if BYTE_ORDER == BIG_ENDIAN
2172                         kev.data = kev32.data2 | ((int64_t)kev32.data1 << 32);
2173 #else
2174                         kev.data = kev32.data1 | ((int64_t)kev32.data2 << 32);
2175 #endif
2176                         kev.udata = (void *)(uintptr_t)kev32.udata;
2177                         ktrkevent(&kev);
2178                 } else if (strcmp(name, "freebsd11_kevent32") == 0) {
2179                         struct freebsd11_kevent32 kev32;
2180
2181                         if (ksa->struct_size != sizeof(kev32))
2182                                 goto bad_size;
2183                         memcpy(&kev32, data, sizeof(kev32));
2184                         memset(&kev, 0, sizeof(kev));
2185                         kev.ident = kev32.ident;
2186                         kev.filter = kev32.filter;
2187                         kev.flags = kev32.flags;
2188                         kev.fflags = kev32.fflags;
2189                         kev.data = kev32.data;
2190                         kev.udata = (void *)(uintptr_t)kev32.udata;
2191                         ktrkevent(&kev);
2192 #endif
2193                 } else {
2194                         printf("<unknown structure> }\n");
2195                         return;
2196                 }
2197         }
2198         printf(" }\n");
2199         return;
2200 invalid:
2201         printf("invalid record\n");
2202         return;
2203 bad_size:
2204         printf("<bad size> }\n");
2205         return;
2206 }
2207
2208 void
2209 usage(void)
2210 {
2211         fprintf(stderr, "usage: kdump [-dEnlHRrSsTA] [-f trfile] "
2212             "[-m maxdata] [-p pid] [-t trstr]\n");
2213         exit(1);
2214 }