usr.bin/kdump/kdump.c

   1 /*-
   2  * Copyright (c) 1988, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 4. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 #ifndef lint
  31 static const char copyright[] =
  32 "@(#) Copyright (c) 1988, 1993\n\
  33         The Regents of the University of California.  All rights reserved.\n";
  34 #endif /* not lint */
  35
  36 #ifndef lint
  37 #if 0
  38 static char sccsid[] = "@(#)kdump.c     8.1 (Berkeley) 6/6/93";
  39 #endif
  40 #endif /* not lint */
  41 #include <sys/cdefs.h>
  42 __FBSDID("$FreeBSD$");
  43
  44 #define _KERNEL
  45 extern int errno;
  46 #include <sys/errno.h>
  47 #undef _KERNEL
  48 #include <sys/param.h>
  49 #include <sys/errno.h>
  50 #define _KERNEL
  51 #include <sys/time.h>
  52 #undef _KERNEL
  53 #include <sys/uio.h>
  54 #include <sys/ktrace.h>
  55 #include <sys/ioctl.h>
  56 #include <sys/socket.h>
  57 #include <sys/stat.h>
  58 #include <sys/sysent.h>
  59 #include <sys/un.h>
  60 #include <sys/queue.h>
  61 #ifdef IPX
  62 #include <sys/types.h>
  63 #include <netipx/ipx.h>
  64 #endif
  65 #ifdef NETATALK
  66 #include <netatalk/at.h>
  67 #endif
  68 #include <arpa/inet.h>
  69 #include <netinet/in.h>
  70 #include <ctype.h>
  71 #include <dlfcn.h>
  72 #include <err.h>
  73 #include <grp.h>
  74 #include <inttypes.h>
  75 #include <locale.h>
  76 #include <pwd.h>
  77 #include <stdio.h>
  78 #include <stdlib.h>
  79 #include <string.h>
  80 #include <time.h>
  81 #include <unistd.h>
  82 #include <vis.h>
  83 #include "ktrace.h"
  84 #include "kdump_subr.h"
  85
  86 u_int abidump(struct ktr_header *);
  87 int fetchprocinfo(struct ktr_header *, u_int *);
  88 int fread_tail(void *, int, int);
  89 void dumpheader(struct ktr_header *);
  90 void ktrsyscall(struct ktr_syscall *, u_int);
  91 void ktrsysret(struct ktr_sysret *, u_int);
  92 void ktrnamei(char *, int);
  93 void hexdump(char *, int, int);
  94 void visdump(char *, int, int);
  95 void ktrgenio(struct ktr_genio *, int);
  96 void ktrpsig(struct ktr_psig *);
  97 void ktrcsw(struct ktr_csw *);
  98 void ktrcsw_old(struct ktr_csw_old *);
  99 void ktruser(int, unsigned char *);
 100 void ktrsockaddr(struct sockaddr *);
 101 void ktrstat(struct stat *);
 102 void ktrstruct(char *, size_t);
 103 void ktrfault(struct ktr_fault *);
 104 void ktrfaultend(struct ktr_faultend *);
 105 void usage(void);
 106 void sockfamilyname(int);
 107 const char *ioctlname(u_long);
 108
 109 int timestamp, decimal, fancy = 1, suppressdata, tail, threads, maxdata,
 110     resolv = 0, abiflag = 0;
 111 const char *tracefile = DEF_TRACEFILE;
 112 struct ktr_header ktr_header;
 113
 114 #define TIME_FORMAT     "%b %e %T %Y"
 115 #define eqs(s1, s2)     (strcmp((s1), (s2)) == 0)
 116
 117 #define print_number(i,n,c) do {                \
 118         if (decimal)                            \
 119                 printf("%c%ld", c, (long)*i);   \
 120         else                                    \
 121                 printf("%c%#lx", c, (long)*i);  \
 122         i++;                                    \
 123         n--;                                    \
 124         c = ',';                                \
 125         } while (0);
 126
 127 #if defined(__amd64__) || defined(__i386__)
 128
 129 void linux_ktrsyscall(struct ktr_syscall *);
 130 void linux_ktrsysret(struct ktr_sysret *);
 131 extern char *linux_syscallnames[];
 132 extern int nlinux_syscalls;
 133
 134 /*
 135  * from linux.h
 136  * Linux syscalls return negative errno's, we do positive and map them
 137  */
 138 static int bsd_to_linux_errno[ELAST + 1] = {
 139         -0,  -1,  -2,  -3,  -4,  -5,  -6,  -7,  -8,  -9,
 140         -10, -35, -12, -13, -14, -15, -16, -17, -18, -19,
 141         -20, -21, -22, -23, -24, -25, -26, -27, -28, -29,
 142         -30, -31, -32, -33, -34, -11,-115,-114, -88, -89,
 143         -90, -91, -92, -93, -94, -95, -96, -97, -98, -99,
 144         -100,-101,-102,-103,-104,-105,-106,-107,-108,-109,
 145         -110,-111, -40, -36,-112,-113, -39, -11, -87,-122,
 146         -116, -66,  -6,  -6,  -6,  -6,  -6, -37, -38,  -9,
 147         -6,  -6, -43, -42, -75,-125, -84, -95, -16, -74,
 148         -72, -67, -71
 149 };
 150 #endif
 151
 152 struct proc_info
 153 {
 154         TAILQ_ENTRY(proc_info)  info;
 155         u_int                   sv_flags;
 156         pid_t                   pid;
 157 };
 158
 159 TAILQ_HEAD(trace_procs, proc_info) trace_procs;
 160
 161 int
 162 main(int argc, char *argv[])
 163 {
 164         int ch, ktrlen, size;
 165         void *m;
 166         int trpoints = ALL_POINTS;
 167         int drop_logged;
 168         pid_t pid = 0;
 169         u_int sv_flags;
 170
 171         (void) setlocale(LC_CTYPE, "");
 172
 173         while ((ch = getopt(argc,argv,"f:dElm:np:AHRrsTt:")) != -1)
 174                 switch((char)ch) {
 175                 case 'A':
 176                         abiflag = 1;
 177                         break;
 178                 case 'f':
 179                         tracefile = optarg;
 180                         break;
 181                 case 'd':
 182                         decimal = 1;
 183                         break;
 184                 case 'l':
 185                         tail = 1;
 186                         break;
 187                 case 'm':
 188                         maxdata = atoi(optarg);
 189                         break;
 190                 case 'n':
 191                         fancy = 0;
 192                         break;
 193                 case 'p':
 194                         pid = atoi(optarg);
 195                         break;
 196                 case 'r':
 197                         resolv = 1;
 198                         break;
 199                 case 's':
 200                         suppressdata = 1;
 201                         break;
 202                 case 'E':
 203                         timestamp = 3;  /* elapsed timestamp */
 204                         break;
 205                 case 'H':
 206                         threads = 1;
 207                         break;
 208                 case 'R':
 209                         timestamp = 2;  /* relative timestamp */
 210                         break;
 211                 case 'T':
 212                         timestamp = 1;
 213                         break;
 214                 case 't':
 215                         trpoints = getpoints(optarg);
 216                         if (trpoints < 0)
 217                                 errx(1, "unknown trace point in %s", optarg);
 218                         break;
 219                 default:
 220                         usage();
 221                 }
 222
 223         if (argc > optind)
 224                 usage();
 225
 226         m = (void *)malloc(size = 1025);
 227         if (m == NULL)
 228                 errx(1, "%s", strerror(ENOMEM));
 229         if (!freopen(tracefile, "r", stdin))
 230                 err(1, "%s", tracefile);
 231         TAILQ_INIT(&trace_procs);
 232         drop_logged = 0;
 233         while (fread_tail(&ktr_header, sizeof(struct ktr_header), 1)) {
 234                 if (ktr_header.ktr_type & KTR_DROP) {
 235                         ktr_header.ktr_type &= ~KTR_DROP;
 236                         if (!drop_logged && threads) {
 237                                 (void)printf(
 238                                     "%6jd %6jd %-8.*s Events dropped.\n",
 239                                     (intmax_t)ktr_header.ktr_pid,
 240                                     ktr_header.ktr_tid > 0 ?
 241                                     (intmax_t)ktr_header.ktr_tid : 0,
 242                                     MAXCOMLEN, ktr_header.ktr_comm);
 243                                 drop_logged = 1;
 244                         } else if (!drop_logged) {
 245                                 (void)printf("%6jd %-8.*s Events dropped.\n",
 246                                     (intmax_t)ktr_header.ktr_pid, MAXCOMLEN,
 247                                     ktr_header.ktr_comm);
 248                                 drop_logged = 1;
 249                         }
 250                 }
 251                 if (trpoints & (1<<ktr_header.ktr_type))
 252                         if (pid == 0 || ktr_header.ktr_pid == pid ||
 253                             ktr_header.ktr_tid == pid)
 254                                 dumpheader(&ktr_header);
 255                 if ((ktrlen = ktr_header.ktr_len) < 0)
 256                         errx(1, "bogus length 0x%x", ktrlen);
 257                 if (ktrlen > size) {
 258                         m = (void *)realloc(m, ktrlen+1);
 259                         if (m == NULL)
 260                                 errx(1, "%s", strerror(ENOMEM));
 261                         size = ktrlen;
 262                 }
 263                 if (ktrlen && fread_tail(m, ktrlen, 1) == 0)
 264                         errx(1, "data too short");
 265                 if (fetchprocinfo(&ktr_header, (u_int *)m) != 0)
 266                         continue;
 267                 sv_flags = abidump(&ktr_header);
 268                 if (pid && ktr_header.ktr_pid != pid &&
 269                     ktr_header.ktr_tid != pid)
 270                         continue;
 271                 if ((trpoints & (1<<ktr_header.ktr_type)) == 0)
 272                         continue;
 273                 drop_logged = 0;
 274                 switch (ktr_header.ktr_type) {
 275                 case KTR_SYSCALL:
 276 #if defined(__amd64__) || defined(__i386__)
 277                         if ((sv_flags & SV_ABI_MASK) == SV_ABI_LINUX)
 278                                 linux_ktrsyscall((struct ktr_syscall *)m);
 279                         else
 280 #endif
 281                                 ktrsyscall((struct ktr_syscall *)m, sv_flags);
 282                         break;
 283                 case KTR_SYSRET:
 284 #if defined(__amd64__) || defined(__i386__)
 285                         if ((sv_flags & SV_ABI_MASK) == SV_ABI_LINUX)
 286                                 linux_ktrsysret((struct ktr_sysret *)m);
 287                         else
 288 #endif
 289                                 ktrsysret((struct ktr_sysret *)m, sv_flags);
 290                         break;
 291                 case KTR_NAMEI:
 292                 case KTR_SYSCTL:
 293                         ktrnamei(m, ktrlen);
 294                         break;
 295                 case KTR_GENIO:
 296                         ktrgenio((struct ktr_genio *)m, ktrlen);
 297                         break;
 298                 case KTR_PSIG:
 299                         ktrpsig((struct ktr_psig *)m);
 300                         break;
 301                 case KTR_CSW:
 302                         if (ktrlen == sizeof(struct ktr_csw_old))
 303                                 ktrcsw_old((struct ktr_csw_old *)m);
 304                         else
 305                                 ktrcsw((struct ktr_csw *)m);
 306                         break;
 307                 case KTR_USER:
 308                         ktruser(ktrlen, m);
 309                         break;
 310                 case KTR_STRUCT:
 311                         ktrstruct(m, ktrlen);
 312                         break;
 313                 case KTR_FAULT:
 314                         ktrfault((struct ktr_fault *)m);
 315                         break;
 316                 case KTR_FAULTEND:
 317                         ktrfaultend((struct ktr_faultend *)m);
 318                         break;
 319                 default:
 320                         printf("\n");
 321                         break;
 322                 }
 323                 if (tail)
 324                         (void)fflush(stdout);
 325         }
 326         return 0;
 327 }
 328
 329 int
 330 fread_tail(void *buf, int size, int num)
 331 {
 332         int i;
 333
 334         while ((i = fread(buf, size, num, stdin)) == 0 && tail) {
 335                 (void)sleep(1);
 336                 clearerr(stdin);
 337         }
 338         return (i);
 339 }
 340
 341 int
 342 fetchprocinfo(struct ktr_header *kth, u_int *flags)
 343 {
 344         struct proc_info *pi;
 345
 346         switch (kth->ktr_type) {
 347         case KTR_PROCCTOR:
 348                 TAILQ_FOREACH(pi, &trace_procs, info) {
 349                         if (pi->pid == kth->ktr_pid) {
 350                                 TAILQ_REMOVE(&trace_procs, pi, info);
 351                                 break;
 352                         }
 353                 }
 354                 pi = malloc(sizeof(struct proc_info));
 355                 if (pi == NULL)
 356                         errx(1, "%s", strerror(ENOMEM));
 357                 pi->sv_flags = *flags;
 358                 pi->pid = kth->ktr_pid;
 359                 TAILQ_INSERT_TAIL(&trace_procs, pi, info);
 360                 return (1);
 361
 362         case KTR_PROCDTOR:
 363                 TAILQ_FOREACH(pi, &trace_procs, info) {
 364                         if (pi->pid == kth->ktr_pid) {
 365                                 TAILQ_REMOVE(&trace_procs, pi, info);
 366                                 free(pi);
 367                                 break;
 368                         }
 369                 }
 370                 return (1);
 371         }
 372
 373         return (0);
 374 }
 375
 376 u_int
 377 abidump(struct ktr_header *kth)
 378 {
 379         struct proc_info *pi;
 380         const char *abi;
 381         const char *arch;
 382         u_int flags = 0;
 383
 384         TAILQ_FOREACH(pi, &trace_procs, info) {
 385                 if (pi->pid == kth->ktr_pid) {
 386                         flags = pi->sv_flags;
 387                         break;
 388                 }
 389         }
 390
 391         if (abiflag == 0)
 392                 return (flags);
 393
 394         switch (flags & SV_ABI_MASK) {
 395         case SV_ABI_LINUX:
 396                 abi = "L";
 397                 break;
 398         case SV_ABI_FREEBSD:
 399                 abi = "F";
 400                 break;
 401         default:
 402                 abi = "U";
 403                 break;
 404         }
 405
 406         if (flags != 0) {
 407                 if (flags & SV_LP64)
 408                         arch = "64";
 409                 else
 410                         arch = "32";
 411         } else
 412                 arch = "00";
 413
 414         printf("%s%s  ", abi, arch);
 415
 416         return (flags);
 417 }
 418
 419 void
 420 dumpheader(struct ktr_header *kth)
 421 {
 422         static char unknown[64];
 423         static struct timeval prevtime, temp;
 424         const char *type;
 425
 426         switch (kth->ktr_type) {
 427         case KTR_SYSCALL:
 428                 type = "CALL";
 429                 break;
 430         case KTR_SYSRET:
 431                 type = "RET ";
 432                 break;
 433         case KTR_NAMEI:
 434                 type = "NAMI";
 435                 break;
 436         case KTR_GENIO:
 437                 type = "GIO ";
 438                 break;
 439         case KTR_PSIG:
 440                 type = "PSIG";
 441                 break;
 442         case KTR_CSW:
 443                 type = "CSW ";
 444                 break;
 445         case KTR_USER:
 446                 type = "USER";
 447                 break;
 448         case KTR_STRUCT:
 449                 type = "STRU";
 450                 break;
 451         case KTR_SYSCTL:
 452                 type = "SCTL";
 453                 break;
 454         case KTR_PROCCTOR:
 455                 /* FALLTHROUGH */
 456         case KTR_PROCDTOR:
 457                 return;
 458         case KTR_FAULT:
 459                 type = "PFLT";
 460                 break;
 461         case KTR_FAULTEND:
 462                 type = "PRET";
 463                 break;
 464         default:
 465                 (void)sprintf(unknown, "UNKNOWN(%d)", kth->ktr_type);
 466                 type = unknown;
 467         }
 468
 469         /*
 470          * The ktr_tid field was previously the ktr_buffer field, which held
 471          * the kernel pointer value for the buffer associated with data
 472          * following the record header.  It now holds a threadid, but only
 473          * for trace files after the change.  Older trace files still contain
 474          * kernel pointers.  Detect this and suppress the results by printing
 475          * negative tid's as 0.
 476          */
 477         if (threads)
 478                 (void)printf("%6jd %6jd %-8.*s ", (intmax_t)kth->ktr_pid,
 479                     kth->ktr_tid > 0 ? (intmax_t)kth->ktr_tid : 0,
 480                     MAXCOMLEN, kth->ktr_comm);
 481         else
 482                 (void)printf("%6jd %-8.*s ", (intmax_t)kth->ktr_pid, MAXCOMLEN,
 483                     kth->ktr_comm);
 484         if (timestamp) {
 485                 if (timestamp == 3) {
 486                         if (prevtime.tv_sec == 0)
 487                                 prevtime = kth->ktr_time;
 488                         timevalsub(&kth->ktr_time, &prevtime);
 489                 }
 490                 if (timestamp == 2) {
 491                         temp = kth->ktr_time;
 492                         timevalsub(&kth->ktr_time, &prevtime);
 493                         prevtime = temp;
 494                 }
 495                 (void)printf("%jd.%06ld ", (intmax_t)kth->ktr_time.tv_sec,
 496                     kth->ktr_time.tv_usec);
 497         }
 498         (void)printf("%s  ", type);
 499 }
 500
 501 #include <sys/syscall.h>
 502 #define KTRACE
 503 #include <sys/kern/syscalls.c>
 504 #undef KTRACE
 505 int nsyscalls = sizeof (syscallnames) / sizeof (syscallnames[0]);
 506
 507 void
 508 ktrsyscall(struct ktr_syscall *ktr, u_int flags)
 509 {
 510         int narg = ktr->ktr_narg;
 511         register_t *ip;
 512
 513         if ((flags != 0 && ((flags & SV_ABI_MASK) != SV_ABI_FREEBSD)) ||
 514             (ktr->ktr_code >= nsyscalls || ktr->ktr_code < 0))
 515                 (void)printf("[%d]", ktr->ktr_code);
 516         else
 517                 (void)printf("%s", syscallnames[ktr->ktr_code]);
 518         ip = &ktr->ktr_args[0];
 519         if (narg) {
 520                 char c = '(';
 521                 if (fancy &&
 522                     (flags == 0 || (flags & SV_ABI_MASK) == SV_ABI_FREEBSD)) {
 523                         if (ktr->ktr_code == SYS_ioctl) {
 524                                 const char *cp;
 525                                 print_number(ip,narg,c);
 526                                 if ((cp = ioctlname(*ip)) != NULL)
 527                                         (void)printf(",%s", cp);
 528                                 else {
 529                                         if (decimal)
 530                                                 (void)printf(",%ld", (long)*ip);
 531                                         else
 532                                                 (void)printf(",%#lx ", (long)*ip);
 533                                 }
 534                                 c = ',';
 535                                 ip++;
 536                                 narg--;
 537                         } else if (ktr->ktr_code == SYS_ptrace) {
 538                                 (void)putchar('(');
 539                                 ptraceopname ((int)*ip);
 540                                 c = ',';
 541                                 ip++;
 542                                 narg--;
 543                         } else if (ktr->ktr_code == SYS_access ||
 544                                    ktr->ktr_code == SYS_eaccess) {
 545                                 print_number(ip,narg,c);
 546                                 (void)putchar(',');
 547                                 accessmodename ((int)*ip);
 548                                 ip++;
 549                                 narg--;
 550                         } else if (ktr->ktr_code == SYS_open) {
 551                                 int     flags;
 552                                 int     mode;
 553                                 print_number(ip,narg,c);
 554                                 flags = *ip;
 555                                 mode = *++ip;
 556                                 (void)putchar(',');
 557                                 flagsandmodename (flags, mode, decimal);
 558                                 ip++;
 559                                 narg-=2;
 560                         } else if (ktr->ktr_code == SYS_wait4) {
 561                                 print_number(ip,narg,c);
 562                                 print_number(ip,narg,c);
 563                                 (void)putchar(',');
 564                                 wait4optname ((int)*ip);
 565                                 ip++;
 566                                 narg--;
 567                         } else if (ktr->ktr_code == SYS_chmod ||
 568                                    ktr->ktr_code == SYS_fchmod ||
 569                                    ktr->ktr_code == SYS_lchmod) {
 570                                 print_number(ip,narg,c);
 571                                 (void)putchar(',');
 572                                 modename ((int)*ip);
 573                                 ip++;
 574                                 narg--;
 575                         } else if (ktr->ktr_code == SYS_mknod) {
 576                                 print_number(ip,narg,c);
 577                                 (void)putchar(',');
 578                                 modename ((int)*ip);
 579                                 ip++;
 580                                 narg--;
 581                         } else if (ktr->ktr_code == SYS_getfsstat) {
 582                                 print_number(ip,narg,c);
 583                                 print_number(ip,narg,c);
 584                                 (void)putchar(',');
 585                                 getfsstatflagsname ((int)*ip);
 586                                 ip++;
 587                                 narg--;
 588                         } else if (ktr->ktr_code == SYS_mount) {
 589                                 print_number(ip,narg,c);
 590                                 print_number(ip,narg,c);
 591                                 (void)putchar(',');
 592                                 mountflagsname ((int)*ip);
 593                                 ip++;
 594                                 narg--;
 595                         } else if (ktr->ktr_code == SYS_unmount) {
 596                                 print_number(ip,narg,c);
 597                                 (void)putchar(',');
 598                                 mountflagsname ((int)*ip);
 599                                 ip++;
 600                                 narg--;
 601                         } else if (ktr->ktr_code == SYS_recvmsg ||
 602                                    ktr->ktr_code == SYS_sendmsg) {
 603                                 print_number(ip,narg,c);
 604                                 print_number(ip,narg,c);
 605                                 (void)putchar(',');
 606                                 sendrecvflagsname ((int)*ip);
 607                                 ip++;
 608                                 narg--;
 609                         } else if (ktr->ktr_code == SYS_recvfrom ||
 610                                    ktr->ktr_code == SYS_sendto) {
 611                                 print_number(ip,narg,c);
 612                                 print_number(ip,narg,c);
 613                                 print_number(ip,narg,c);
 614                                 (void)putchar(',');
 615                                 sendrecvflagsname ((int)*ip);
 616                                 ip++;
 617                                 narg--;
 618                         } else if (ktr->ktr_code == SYS_chflags ||
 619                                    ktr->ktr_code == SYS_fchflags ||
 620                                    ktr->ktr_code == SYS_lchflags) {
 621                                 print_number(ip,narg,c);
 622                                 (void)putchar(',');
 623                                 modename((int)*ip);
 624                                 ip++;
 625                                 narg--;
 626                         } else if (ktr->ktr_code == SYS_kill) {
 627                                 print_number(ip,narg,c);
 628                                 (void)putchar(',');
 629                                 signame((int)*ip);
 630                                 ip++;
 631                                 narg--;
 632                         } else if (ktr->ktr_code == SYS_reboot) {
 633                                 (void)putchar('(');
 634                                 rebootoptname((int)*ip);
 635                                 ip++;
 636                                 narg--;
 637                         } else if (ktr->ktr_code == SYS_umask) {
 638                                 (void)putchar('(');
 639                                 modename((int)*ip);
 640                                 ip++;
 641                                 narg--;
 642                         } else if (ktr->ktr_code == SYS_msync) {
 643                                 print_number(ip,narg,c);
 644                                 print_number(ip,narg,c);
 645                                 (void)putchar(',');
 646                                 msyncflagsname((int)*ip);
 647                                 ip++;
 648                                 narg--;
 649 #ifdef SYS_freebsd6_mmap
 650                         } else if (ktr->ktr_code == SYS_freebsd6_mmap) {
 651                                 print_number(ip,narg,c);
 652                                 print_number(ip,narg,c);
 653                                 (void)putchar(',');
 654                                 mmapprotname ((int)*ip);
 655                                 (void)putchar(',');
 656                                 ip++;
 657                                 narg--;
 658                                 mmapflagsname ((int)*ip);
 659                                 ip++;
 660                                 narg--;
 661 #endif
 662                         } else if (ktr->ktr_code == SYS_mmap) {
 663                                 print_number(ip,narg,c);
 664                                 print_number(ip,narg,c);
 665                                 (void)putchar(',');
 666                                 mmapprotname ((int)*ip);
 667                                 (void)putchar(',');
 668                                 ip++;
 669                                 narg--;
 670                                 mmapflagsname ((int)*ip);
 671                                 ip++;
 672                                 narg--;
 673                         } else if (ktr->ktr_code == SYS_mprotect) {
 674                                 print_number(ip,narg,c);
 675                                 print_number(ip,narg,c);
 676                                 (void)putchar(',');
 677                                 mmapprotname ((int)*ip);
 678                                 ip++;
 679                                 narg--;
 680                         } else if (ktr->ktr_code == SYS_madvise) {
 681                                 print_number(ip,narg,c);
 682                                 print_number(ip,narg,c);
 683                                 (void)putchar(',');
 684                                 madvisebehavname((int)*ip);
 685                                 ip++;
 686                                 narg--;
 687                         } else if (ktr->ktr_code == SYS_setpriority) {
 688                                 print_number(ip,narg,c);
 689                                 print_number(ip,narg,c);
 690                                 (void)putchar(',');
 691                                 prioname((int)*ip);
 692                                 ip++;
 693                                 narg--;
 694                         } else if (ktr->ktr_code == SYS_fcntl) {
 695                                 int cmd;
 696                                 int arg;
 697                                 print_number(ip,narg,c);
 698                                 cmd = *ip;
 699                                 arg = *++ip;
 700                                 (void)putchar(',');
 701                                 fcntlcmdname(cmd, arg, decimal);
 702                                 ip++;
 703                                 narg-=2;
 704                         } else if (ktr->ktr_code == SYS_socket) {
 705                                 int sockdomain;
 706                                 (void)putchar('(');
 707                                 sockdomain=(int)*ip;
 708                                 sockdomainname(sockdomain);
 709                                 ip++;
 710                                 narg--;
 711                                 (void)putchar(',');
 712                                 socktypename((int)*ip);
 713                                 ip++;
 714                                 narg--;
 715                                 if (sockdomain == PF_INET ||
 716                                     sockdomain == PF_INET6) {
 717                                         (void)putchar(',');
 718                                         sockipprotoname((int)*ip);
 719                                         ip++;
 720                                         narg--;
 721                                 }
 722                                 c = ',';
 723                         } else if (ktr->ktr_code == SYS_setsockopt ||
 724                                    ktr->ktr_code == SYS_getsockopt) {
 725                                 print_number(ip,narg,c);
 726                                 (void)putchar(',');
 727                                 sockoptlevelname((int)*ip, decimal);
 728                                 if ((int)*ip == SOL_SOCKET) {
 729                                         ip++;
 730                                         narg--;
 731                                         (void)putchar(',');
 732                                         sockoptname((int)*ip);
 733                                 }
 734                                 ip++;
 735                                 narg--;
 736 #ifdef SYS_freebsd6_lseek
 737                         } else if (ktr->ktr_code == SYS_freebsd6_lseek) {
 738                                 print_number(ip,narg,c);
 739                                 /* Hidden 'pad' argument, not in lseek(2) */
 740                                 print_number(ip,narg,c);
 741                                 print_number(ip,narg,c);
 742                                 (void)putchar(',');
 743                                 whencename ((int)*ip);
 744                                 ip++;
 745                                 narg--;
 746 #endif
 747                         } else if (ktr->ktr_code == SYS_lseek) {
 748                                 print_number(ip,narg,c);
 749                                 /* Hidden 'pad' argument, not in lseek(2) */
 750                                 print_number(ip,narg,c);
 751                                 (void)putchar(',');
 752                                 whencename ((int)*ip);
 753                                 ip++;
 754                                 narg--;
 755
 756                         } else if (ktr->ktr_code == SYS_flock) {
 757                                 print_number(ip,narg,c);
 758                                 (void)putchar(',');
 759                                 flockname((int)*ip);
 760                                 ip++;
 761                                 narg--;
 762                         } else if (ktr->ktr_code == SYS_mkfifo ||
 763                                    ktr->ktr_code == SYS_mkdir) {
 764                                 print_number(ip,narg,c);
 765                                 (void)putchar(',');
 766                                 modename((int)*ip);
 767                                 ip++;
 768                                 narg--;
 769                         } else if (ktr->ktr_code == SYS_shutdown) {
 770                                 print_number(ip,narg,c);
 771                                 (void)putchar(',');
 772                                 shutdownhowname((int)*ip);
 773                                 ip++;
 774                                 narg--;
 775                         } else if (ktr->ktr_code == SYS_socketpair) {
 776                                 (void)putchar('(');
 777                                 sockdomainname((int)*ip);
 778                                 ip++;
 779                                 narg--;
 780                                 (void)putchar(',');
 781                                 socktypename((int)*ip);
 782                                 ip++;
 783                                 narg--;
 784                                 c = ',';
 785                         } else if (ktr->ktr_code == SYS_getrlimit ||
 786                                    ktr->ktr_code == SYS_setrlimit) {
 787                                 (void)putchar('(');
 788                                 rlimitname((int)*ip);
 789                                 ip++;
 790                                 narg--;
 791                                 c = ',';
 792                         } else if (ktr->ktr_code == SYS_quotactl) {
 793                                 print_number(ip,narg,c);
 794                                 (void)putchar(',');
 795                                 quotactlname((int)*ip);
 796                                 ip++;
 797                                 narg--;
 798                                 c = ',';
 799                         } else if (ktr->ktr_code == SYS_nfssvc) {
 800                                 (void)putchar('(');
 801                                 nfssvcname((int)*ip);
 802                                 ip++;
 803                                 narg--;
 804                                 c = ',';
 805                         } else if (ktr->ktr_code == SYS_rtprio) {
 806                                 (void)putchar('(');
 807                                 rtprioname((int)*ip);
 808                                 ip++;
 809                                 narg--;
 810                                 c = ',';
 811                         } else if (ktr->ktr_code == SYS___semctl) {
 812                                 print_number(ip,narg,c);
 813                                 print_number(ip,narg,c);
 814                                 (void)putchar(',');
 815                                 semctlname((int)*ip);
 816                                 ip++;
 817                                 narg--;
 818                         } else if (ktr->ktr_code == SYS_semget) {
 819                                 print_number(ip,narg,c);
 820                                 print_number(ip,narg,c);
 821                                 (void)putchar(',');
 822                                 semgetname((int)*ip);
 823                                 ip++;
 824                                 narg--;
 825                         } else if (ktr->ktr_code == SYS_msgctl) {
 826                                 print_number(ip,narg,c);
 827                                 (void)putchar(',');
 828                                 shmctlname((int)*ip);
 829                                 ip++;
 830                                 narg--;
 831                         } else if (ktr->ktr_code == SYS_shmat) {
 832                                 print_number(ip,narg,c);
 833                                 print_number(ip,narg,c);
 834                                 (void)putchar(',');
 835                                 shmatname((int)*ip);
 836                                 ip++;
 837                                 narg--;
 838                         } else if (ktr->ktr_code == SYS_shmctl) {
 839                                 print_number(ip,narg,c);
 840                                 (void)putchar(',');
 841                                 shmctlname((int)*ip);
 842                                 ip++;
 843                                 narg--;
 844                         } else if (ktr->ktr_code == SYS_minherit) {
 845                                 print_number(ip,narg,c);
 846                                 print_number(ip,narg,c);
 847                                 (void)putchar(',');
 848                                 minheritname((int)*ip);
 849                                 ip++;
 850                                 narg--;
 851                         } else if (ktr->ktr_code == SYS_rfork) {
 852                                 (void)putchar('(');
 853                                 rforkname((int)*ip);
 854                                 ip++;
 855                                 narg--;
 856                                 c = ',';
 857                         } else if (ktr->ktr_code == SYS_lio_listio) {
 858                                 (void)putchar('(');
 859                                 lio_listioname((int)*ip);
 860                                 ip++;
 861                                 narg--;
 862                                 c = ',';
 863                         } else if (ktr->ktr_code == SYS_mlockall) {
 864                                 (void)putchar('(');
 865                                 mlockallname((int)*ip);
 866                                 ip++;
 867                                 narg--;
 868                         } else if (ktr->ktr_code == SYS_sched_setscheduler) {
 869                                 print_number(ip,narg,c);
 870                                 (void)putchar(',');
 871                                 schedpolicyname((int)*ip);
 872                                 ip++;
 873                                 narg--;
 874                         } else if (ktr->ktr_code == SYS_sched_get_priority_max ||
 875                                    ktr->ktr_code == SYS_sched_get_priority_min) {
 876                                 (void)putchar('(');
 877                                 schedpolicyname((int)*ip);
 878                                 ip++;
 879                                 narg--;
 880                         } else if (ktr->ktr_code == SYS_sendfile) {
 881                                 print_number(ip,narg,c);
 882                                 print_number(ip,narg,c);
 883                                 print_number(ip,narg,c);
 884                                 print_number(ip,narg,c);
 885                                 print_number(ip,narg,c);
 886                                 print_number(ip,narg,c);
 887                                 (void)putchar(',');
 888                                 sendfileflagsname((int)*ip);
 889                                 ip++;
 890                                 narg--;
 891                         } else if (ktr->ktr_code == SYS_kldsym) {
 892                                 print_number(ip,narg,c);
 893                                 (void)putchar(',');
 894                                 kldsymcmdname((int)*ip);
 895                                 ip++;
 896                                 narg--;
 897                         } else if (ktr->ktr_code == SYS_sigprocmask) {
 898                                 (void)putchar('(');
 899                                 sigprocmaskhowname((int)*ip);
 900                                 ip++;
 901                                 narg--;
 902                                 c = ',';
 903                         } else if (ktr->ktr_code == SYS___acl_get_file ||
 904                                    ktr->ktr_code == SYS___acl_set_file ||
 905                                    ktr->ktr_code == SYS___acl_get_fd ||
 906                                    ktr->ktr_code == SYS___acl_set_fd ||
 907                                    ktr->ktr_code == SYS___acl_delete_file ||
 908                                    ktr->ktr_code == SYS___acl_delete_fd ||
 909                                    ktr->ktr_code == SYS___acl_aclcheck_file ||
 910                                    ktr->ktr_code == SYS___acl_aclcheck_fd ||
 911                                    ktr->ktr_code == SYS___acl_get_link ||
 912                                    ktr->ktr_code == SYS___acl_set_link ||
 913                                    ktr->ktr_code == SYS___acl_delete_link ||
 914                                    ktr->ktr_code == SYS___acl_aclcheck_link) {
 915                                 print_number(ip,narg,c);
 916                                 (void)putchar(',');
 917                                 acltypename((int)*ip);
 918                                 ip++;
 919                                 narg--;
 920                         } else if (ktr->ktr_code == SYS_sigaction) {
 921                                 (void)putchar('(');
 922                                 signame((int)*ip);
 923                                 ip++;
 924                                 narg--;
 925                                 c = ',';
 926                         } else if (ktr->ktr_code == SYS_extattrctl) {
 927                                 print_number(ip,narg,c);
 928                                 (void)putchar(',');
 929                                 extattrctlname((int)*ip);
 930                                 ip++;
 931                                 narg--;
 932                         } else if (ktr->ktr_code == SYS_nmount) {
 933                                 print_number(ip,narg,c);
 934                                 print_number(ip,narg,c);
 935                                 (void)putchar(',');
 936                                 mountflagsname ((int)*ip);
 937                                 ip++;
 938                                 narg--;
 939                         } else if (ktr->ktr_code == SYS_thr_create) {
 940                                 print_number(ip,narg,c);
 941                                 print_number(ip,narg,c);
 942                                 (void)putchar(',');
 943                                 thrcreateflagsname ((int)*ip);
 944                                 ip++;
 945                                 narg--;
 946                         } else if (ktr->ktr_code == SYS_thr_kill) {
 947                                 print_number(ip,narg,c);
 948                                 (void)putchar(',');
 949                                 signame ((int)*ip);
 950                                 ip++;
 951                                 narg--;
 952                         } else if (ktr->ktr_code == SYS_kldunloadf) {
 953                                 print_number(ip,narg,c);
 954                                 (void)putchar(',');
 955                                 kldunloadfflagsname ((int)*ip);
 956                                 ip++;
 957                                 narg--;
 958                         } else if (ktr->ktr_code == SYS_posix_fadvise) {
 959                                 print_number(ip,narg,c);
 960                                 print_number(ip,narg,c);
 961                                 print_number(ip,narg,c);
 962                                 (void)putchar(',');
 963                                 fadvisebehavname((int)*ip);
 964                                 ip++;
 965                                 narg--;
 966                         }
 967                 }
 968                 while (narg > 0) {
 969                         print_number(ip,narg,c);
 970                 }
 971                 (void)putchar(')');
 972         }
 973         (void)putchar('\n');
 974 }
 975
 976 void
 977 ktrsysret(struct ktr_sysret *ktr, u_int flags)
 978 {
 979         register_t ret = ktr->ktr_retval;
 980         int error = ktr->ktr_error;
 981         int code = ktr->ktr_code;
 982
 983         if ((flags != 0 && ((flags & SV_ABI_MASK) != SV_ABI_FREEBSD)) ||
 984             (code >= nsyscalls || code < 0))
 985                 (void)printf("[%d] ", code);
 986         else
 987                 (void)printf("%s ", syscallnames[code]);
 988
 989         if (error == 0) {
 990                 if (fancy) {
 991                         (void)printf("%ld", (long)ret);
 992                         if (ret < 0 || ret > 9)
 993                                 (void)printf("/%#lx", (long)ret);
 994                 } else {
 995                         if (decimal)
 996                                 (void)printf("%ld", (long)ret);
 997                         else
 998                                 (void)printf("%#lx", (long)ret);
 999                 }
1000         } else if (error == ERESTART)
1001                 (void)printf("RESTART");
1002         else if (error == EJUSTRETURN)
1003                 (void)printf("JUSTRETURN");
1004         else {
1005                 (void)printf("-1 errno %d", ktr->ktr_error);
1006                 if (fancy)
1007                         (void)printf(" %s", strerror(ktr->ktr_error));
1008         }
1009         (void)putchar('\n');
1010 }
1011
1012 void
1013 ktrnamei(char *cp, int len)
1014 {
1015         (void)printf("\"%.*s\"\n", len, cp);
1016 }
1017
1018 void
1019 hexdump(char *p, int len, int screenwidth)
1020 {
1021         int n, i;
1022         int width;
1023
1024         width = 0;
1025         do {
1026                 width += 2;
1027                 i = 13;                 /* base offset */
1028                 i += (width / 2) + 1;   /* spaces every second byte */
1029                 i += (width * 2);       /* width of bytes */
1030                 i += 3;                 /* "  |" */
1031                 i += width;             /* each byte */
1032                 i += 1;                 /* "|" */
1033         } while (i < screenwidth);
1034         width -= 2;
1035
1036         for (n = 0; n < len; n += width) {
1037                 for (i = n; i < n + width; i++) {
1038                         if ((i % width) == 0) { /* beginning of line */
1039                                 printf("       0x%04x", i);
1040                         }
1041                         if ((i % 2) == 0) {
1042                                 printf(" ");
1043                         }
1044                         if (i < len)
1045                                 printf("%02x", p[i] & 0xff);
1046                         else
1047                                 printf("  ");
1048                 }
1049                 printf("  |");
1050                 for (i = n; i < n + width; i++) {
1051                         if (i >= len)
1052                                 break;
1053                         if (p[i] >= ' ' && p[i] <= '~')
1054                                 printf("%c", p[i]);
1055                         else
1056                                 printf(".");
1057                 }
1058                 printf("|\n");
1059         }
1060         if ((i % width) != 0)
1061                 printf("\n");
1062 }
1063
1064 void
1065 visdump(char *dp, int datalen, int screenwidth)
1066 {
1067         int col = 0;
1068         char *cp;
1069         int width;
1070         char visbuf[5];
1071
1072         (void)printf("       \"");
1073         col = 8;
1074         for (;datalen > 0; datalen--, dp++) {
1075                 (void) vis(visbuf, *dp, VIS_CSTYLE, *(dp+1));
1076                 cp = visbuf;
1077                 /*
1078                  * Keep track of printables and
1079                  * space chars (like fold(1)).
1080                  */
1081                 if (col == 0) {
1082                         (void)putchar('\t');
1083                         col = 8;
1084                 }
1085                 switch(*cp) {
1086                 case '\n':
1087                         col = 0;
1088                         (void)putchar('\n');
1089                         continue;
1090                 case '\t':
1091                         width = 8 - (col&07);
1092                         break;
1093                 default:
1094                         width = strlen(cp);
1095                 }
1096                 if (col + width > (screenwidth-2)) {
1097                         (void)printf("\\\n\t");
1098                         col = 8;
1099                 }
1100                 col += width;
1101                 do {
1102                         (void)putchar(*cp++);
1103                 } while (*cp);
1104         }
1105         if (col == 0)
1106                 (void)printf("       ");
1107         (void)printf("\"\n");
1108 }
1109
1110 void
1111 ktrgenio(struct ktr_genio *ktr, int len)
1112 {
1113         int datalen = len - sizeof (struct ktr_genio);
1114         char *dp = (char *)ktr + sizeof (struct ktr_genio);
1115         static int screenwidth = 0;
1116         int i, binary;
1117
1118         if (screenwidth == 0) {
1119                 struct winsize ws;
1120
1121                 if (fancy && ioctl(fileno(stderr), TIOCGWINSZ, &ws) != -1 &&
1122                     ws.ws_col > 8)
1123                         screenwidth = ws.ws_col;
1124                 else
1125                         screenwidth = 80;
1126         }
1127         printf("fd %d %s %d byte%s\n", ktr->ktr_fd,
1128                 ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen,
1129                 datalen == 1 ? "" : "s");
1130         if (suppressdata)
1131                 return;
1132         if (maxdata && datalen > maxdata)
1133                 datalen = maxdata;
1134
1135         for (i = 0, binary = 0; i < datalen && binary == 0; i++)  {
1136                 if (dp[i] >= 32 && dp[i] < 127)
1137                         continue;
1138                 if (dp[i] == 10 || dp[i] == 13 || dp[i] == 0 || dp[i] == 9)
1139                         continue;
1140                 binary = 1;
1141         }
1142         if (binary)
1143                 hexdump(dp, datalen, screenwidth);
1144         else
1145                 visdump(dp, datalen, screenwidth);
1146 }
1147
1148 const char *signames[] = {
1149         "NULL", "HUP", "INT", "QUIT", "ILL", "TRAP", "IOT",     /*  1 - 6  */
1150         "EMT", "FPE", "KILL", "BUS", "SEGV", "SYS",             /*  7 - 12 */
1151         "PIPE", "ALRM",  "TERM", "URG", "STOP", "TSTP",         /* 13 - 18 */
1152         "CONT", "CHLD", "TTIN", "TTOU", "IO", "XCPU",           /* 19 - 24 */
1153         "XFSZ", "VTALRM", "PROF", "WINCH", "29", "USR1",        /* 25 - 30 */
1154         "USR2", NULL,                                           /* 31 - 32 */
1155 };
1156
1157 void
1158 ktrpsig(struct ktr_psig *psig)
1159 {
1160         if (psig->signo > 0 && psig->signo < NSIG)
1161                 (void)printf("SIG%s ", signames[psig->signo]);
1162         else
1163                 (void)printf("SIG %d ", psig->signo);
1164         if (psig->action == SIG_DFL)
1165                 (void)printf("SIG_DFL code=0x%x\n", psig->code);
1166         else {
1167                 (void)printf("caught handler=0x%lx mask=0x%x code=0x%x\n",
1168                     (u_long)psig->action, psig->mask.__bits[0], psig->code);
1169         }
1170 }
1171
1172 void
1173 ktrcsw_old(struct ktr_csw_old *cs)
1174 {
1175         (void)printf("%s %s\n", cs->out ? "stop" : "resume",
1176                 cs->user ? "user" : "kernel");
1177 }
1178
1179 void
1180 ktrcsw(struct ktr_csw *cs)
1181 {
1182         printf("%s %s \"%s\"\n", cs->out ? "stop" : "resume",
1183             cs->user ? "user" : "kernel", cs->wmesg);
1184 }
1185
1186 #define UTRACE_DLOPEN_START             1
1187 #define UTRACE_DLOPEN_STOP              2
1188 #define UTRACE_DLCLOSE_START            3
1189 #define UTRACE_DLCLOSE_STOP             4
1190 #define UTRACE_LOAD_OBJECT              5
1191 #define UTRACE_UNLOAD_OBJECT            6
1192 #define UTRACE_ADD_RUNDEP               7
1193 #define UTRACE_PRELOAD_FINISHED         8
1194 #define UTRACE_INIT_CALL                9
1195 #define UTRACE_FINI_CALL                10
1196
1197 struct utrace_rtld {
1198         char sig[4];                            /* 'RTLD' */
1199         int event;
1200         void *handle;
1201         void *mapbase;
1202         size_t mapsize;
1203         int refcnt;
1204         char name[MAXPATHLEN];
1205 };
1206
1207 void
1208 ktruser_rtld(int len, unsigned char *p)
1209 {
1210         struct utrace_rtld *ut = (struct utrace_rtld *)p;
1211         void *parent;
1212         int mode;
1213
1214         switch (ut->event) {
1215         case UTRACE_DLOPEN_START:
1216                 mode = ut->refcnt;
1217                 printf("dlopen(%s, ", ut->name);
1218                 switch (mode & RTLD_MODEMASK) {
1219                 case RTLD_NOW:
1220                         printf("RTLD_NOW");
1221                         break;
1222                 case RTLD_LAZY:
1223                         printf("RTLD_LAZY");
1224                         break;
1225                 default:
1226                         printf("%#x", mode & RTLD_MODEMASK);
1227                 }
1228                 if (mode & RTLD_GLOBAL)
1229                         printf(" | RTLD_GLOBAL");
1230                 if (mode & RTLD_TRACE)
1231                         printf(" | RTLD_TRACE");
1232                 if (mode & ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE))
1233                         printf(" | %#x", mode &
1234                             ~(RTLD_MODEMASK | RTLD_GLOBAL | RTLD_TRACE));
1235                 printf(")\n");
1236                 break;
1237         case UTRACE_DLOPEN_STOP:
1238                 printf("%p = dlopen(%s) ref %d\n", ut->handle, ut->name,
1239                     ut->refcnt);
1240                 break;
1241         case UTRACE_DLCLOSE_START:
1242                 printf("dlclose(%p) (%s, %d)\n", ut->handle, ut->name,
1243                     ut->refcnt);
1244                 break;
1245         case UTRACE_DLCLOSE_STOP:
1246                 printf("dlclose(%p) finished\n", ut->handle);
1247                 break;
1248         case UTRACE_LOAD_OBJECT:
1249                 printf("RTLD: loaded   %p @ %p - %p (%s)\n", ut->handle,
1250                     ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1,
1251                     ut->name);
1252                 break;
1253         case UTRACE_UNLOAD_OBJECT:
1254                 printf("RTLD: unloaded %p @ %p - %p (%s)\n", ut->handle,
1255                     ut->mapbase, (char *)ut->mapbase + ut->mapsize - 1,
1256                     ut->name);
1257                 break;
1258         case UTRACE_ADD_RUNDEP:
1259                 parent = ut->mapbase;
1260                 printf("RTLD: %p now depends on %p (%s, %d)\n", parent,
1261                     ut->handle, ut->name, ut->refcnt);
1262                 break;
1263         case UTRACE_PRELOAD_FINISHED:
1264                 printf("RTLD: LD_PRELOAD finished\n");
1265                 break;
1266         case UTRACE_INIT_CALL:
1267                 printf("RTLD: init %p for %p (%s)\n", ut->mapbase, ut->handle,
1268                     ut->name);
1269                 break;
1270         case UTRACE_FINI_CALL:
1271                 printf("RTLD: fini %p for %p (%s)\n", ut->mapbase, ut->handle,
1272                     ut->name);
1273                 break;
1274         default:
1275                 p += 4;
1276                 len -= 4;
1277                 printf("RTLD: %d ", len);
1278                 while (len--)
1279                         if (decimal)
1280                                 printf(" %d", *p++);
1281                         else
1282                                 printf(" %02x", *p++);
1283                 printf("\n");
1284         }
1285 }
1286
1287 struct utrace_malloc {
1288         void *p;
1289         size_t s;
1290         void *r;
1291 };
1292
1293 void
1294 ktruser_malloc(int len, unsigned char *p)
1295 {
1296         struct utrace_malloc *ut = (struct utrace_malloc *)p;
1297
1298         if (ut->p == (void *)(intptr_t)(-1))
1299                 printf("malloc_init()\n");
1300         else if (ut->s == 0)
1301                 printf("free(%p)\n", ut->p);
1302         else if (ut->p == NULL)
1303                 printf("%p = malloc(%zu)\n", ut->r, ut->s);
1304         else
1305                 printf("%p = realloc(%p, %zu)\n", ut->r, ut->p, ut->s);
1306 }
1307
1308 void
1309 ktruser(int len, unsigned char *p)
1310 {
1311
1312         if (len >= 8 && bcmp(p, "RTLD", 4) == 0) {
1313                 ktruser_rtld(len, p);
1314                 return;
1315         }
1316
1317         if (len == sizeof(struct utrace_malloc)) {
1318                 ktruser_malloc(len, p);
1319                 return;
1320         }
1321
1322         (void)printf("%d ", len);
1323         while (len--)
1324                 if (decimal)
1325                         (void)printf(" %d", *p++);
1326                 else
1327                         (void)printf(" %02x", *p++);
1328         (void)printf("\n");
1329 }
1330
1331 void
1332 ktrsockaddr(struct sockaddr *sa)
1333 {
1334 /*
1335  TODO: Support additional address families
1336         #include <netnatm/natm.h>
1337         struct sockaddr_natm    *natm;
1338         #include <netsmb/netbios.h>
1339         struct sockaddr_nb      *nb;
1340 */
1341         char addr[64];
1342
1343         /*
1344          * note: ktrstruct() has already verified that sa points to a
1345          * buffer at least sizeof(struct sockaddr) bytes long and exactly
1346          * sa->sa_len bytes long.
1347          */
1348         printf("struct sockaddr { ");
1349         sockfamilyname(sa->sa_family);
1350         printf(", ");
1351
1352 #define check_sockaddr_len(n)                                   \
1353         if (sa_##n->s##n##_len < sizeof(struct sockaddr_##n)) { \
1354                 printf("invalid");                              \
1355                 break;                                          \
1356         }
1357
1358         switch(sa->sa_family) {
1359         case AF_INET: {
1360                 struct sockaddr_in      *sa_in;
1361
1362                 sa_in = (struct sockaddr_in *)sa;
1363                 check_sockaddr_len(in);
1364                 inet_ntop(AF_INET, &sa_in->sin_addr, addr, sizeof addr);
1365                 printf("%s:%u", addr, ntohs(sa_in->sin_port));
1366                 break;
1367         }
1368 #ifdef NETATALK
1369         case AF_APPLETALK: {
1370                 struct sockaddr_at      *sa_at;
1371                 struct netrange         *nr;
1372
1373                 sa_at = (struct sockaddr_at *)sa;
1374                 check_sockaddr_len(at);
1375                 nr = &sa_at->sat_range.r_netrange;
1376                 printf("%d.%d, %d-%d, %d", ntohs(sa_at->sat_addr.s_net),
1377                         sa_at->sat_addr.s_node, ntohs(nr->nr_firstnet),
1378                         ntohs(nr->nr_lastnet), nr->nr_phase);
1379                 break;
1380         }
1381 #endif
1382         case AF_INET6: {
1383                 struct sockaddr_in6     *sa_in6;
1384
1385                 sa_in6 = (struct sockaddr_in6 *)sa;
1386                 check_sockaddr_len(in6);
1387                 inet_ntop(AF_INET6, &sa_in6->sin6_addr, addr, sizeof addr);
1388                 printf("[%s]:%u", addr, htons(sa_in6->sin6_port));
1389                 break;
1390         }
1391 #ifdef IPX
1392         case AF_IPX: {
1393                 struct sockaddr_ipx     *sa_ipx;
1394
1395                 sa_ipx = (struct sockaddr_ipx *)sa;
1396                 check_sockaddr_len(ipx);
1397                 /* XXX wish we had ipx_ntop */
1398                 printf("%s", ipx_ntoa(sa_ipx->sipx_addr));
1399                 break;
1400         }
1401 #endif
1402         case AF_UNIX: {
1403                 struct sockaddr_un *sa_un;
1404
1405                 sa_un = (struct sockaddr_un *)sa;
1406                 check_sockaddr_len(un);
1407                 printf("%.*s", (int)sizeof(sa_un->sun_path), sa_un->sun_path);
1408                 break;
1409         }
1410         default:
1411                 printf("unknown address family");
1412         }
1413         printf(" }\n");
1414 }
1415
1416 void
1417 ktrstat(struct stat *statp)
1418 {
1419         char mode[12], timestr[PATH_MAX + 4];
1420         struct passwd *pwd;
1421         struct group  *grp;
1422         struct tm *tm;
1423
1424         /*
1425          * note: ktrstruct() has already verified that statp points to a
1426          * buffer exactly sizeof(struct stat) bytes long.
1427          */
1428         printf("struct stat {");
1429         strmode(statp->st_mode, mode);
1430         printf("dev=%ju, ino=%ju, mode=%s, nlink=%ju, ",
1431                 (uintmax_t)statp->st_dev, (uintmax_t)statp->st_ino, mode,
1432                 (uintmax_t)statp->st_nlink);
1433         if (resolv == 0 || (pwd = getpwuid(statp->st_uid)) == NULL)
1434                 printf("uid=%ju, ", (uintmax_t)statp->st_uid);
1435         else
1436                 printf("uid=\"%s\", ", pwd->pw_name);
1437         if (resolv == 0 || (grp = getgrgid(statp->st_gid)) == NULL)
1438                 printf("gid=%ju, ", (uintmax_t)statp->st_gid);
1439         else
1440                 printf("gid=\"%s\", ", grp->gr_name);
1441         printf("rdev=%ju, ", (uintmax_t)statp->st_rdev);
1442         printf("atime=");
1443         if (resolv == 0)
1444                 printf("%jd", (intmax_t)statp->st_atim.tv_sec);
1445         else {
1446                 tm = localtime(&statp->st_atim.tv_sec);
1447                 (void)strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1448                 printf("\"%s\"", timestr);
1449         }
1450         if (statp->st_atim.tv_nsec != 0)
1451                 printf(".%09ld, ", statp->st_atim.tv_nsec);
1452         else
1453                 printf(", ");
1454         printf("stime=");
1455         if (resolv == 0)
1456                 printf("%jd", (intmax_t)statp->st_mtim.tv_sec);
1457         else {
1458                 tm = localtime(&statp->st_mtim.tv_sec);
1459                 (void)strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1460                 printf("\"%s\"", timestr);
1461         }
1462         if (statp->st_mtim.tv_nsec != 0)
1463                 printf(".%09ld, ", statp->st_mtim.tv_nsec);
1464         else
1465                 printf(", ");
1466         printf("ctime=");
1467         if (resolv == 0)
1468                 printf("%jd", (intmax_t)statp->st_ctim.tv_sec);
1469         else {
1470                 tm = localtime(&statp->st_ctim.tv_sec);
1471                 (void)strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1472                 printf("\"%s\"", timestr);
1473         }
1474         if (statp->st_ctim.tv_nsec != 0)
1475                 printf(".%09ld, ", statp->st_ctim.tv_nsec);
1476         else
1477                 printf(", ");
1478         printf("birthtime=");
1479         if (resolv == 0)
1480                 printf("%jd", (intmax_t)statp->st_birthtim.tv_sec);
1481         else {
1482                 tm = localtime(&statp->st_birthtim.tv_sec);
1483                 (void)strftime(timestr, sizeof(timestr), TIME_FORMAT, tm);
1484                 printf("\"%s\"", timestr);
1485         }
1486         if (statp->st_birthtim.tv_nsec != 0)
1487                 printf(".%09ld, ", statp->st_birthtim.tv_nsec);
1488         else
1489                 printf(", ");
1490         printf("size=%jd, blksize=%ju, blocks=%jd, flags=0x%x",
1491                 (uintmax_t)statp->st_size, (uintmax_t)statp->st_blksize,
1492                 (intmax_t)statp->st_blocks, statp->st_flags);
1493         printf(" }\n");
1494 }
1495
1496 void
1497 ktrstruct(char *buf, size_t buflen)
1498 {
1499         char *name, *data;
1500         size_t namelen, datalen;
1501         int i;
1502         struct stat sb;
1503         struct sockaddr_storage ss;
1504
1505         for (name = buf, namelen = 0;
1506              namelen < buflen && name[namelen] != '\0';
1507              ++namelen)
1508                 /* nothing */;
1509         if (namelen == buflen)
1510                 goto invalid;
1511         if (name[namelen] != '\0')
1512                 goto invalid;
1513         data = buf + namelen + 1;
1514         datalen = buflen - namelen - 1;
1515         if (datalen == 0)
1516                 goto invalid;
1517         /* sanity check */
1518         for (i = 0; i < namelen; ++i)
1519                 if (!isalpha((unsigned char)name[i]))
1520                         goto invalid;
1521         if (strcmp(name, "stat") == 0) {
1522                 if (datalen != sizeof(struct stat))
1523                         goto invalid;
1524                 memcpy(&sb, data, datalen);
1525                 ktrstat(&sb);
1526         } else if (strcmp(name, "sockaddr") == 0) {
1527                 if (datalen > sizeof(ss))
1528                         goto invalid;
1529                 memcpy(&ss, data, datalen);
1530                 if (datalen < sizeof(struct sockaddr) ||
1531                     datalen != ss.ss_len)
1532                         goto invalid;
1533                 ktrsockaddr((struct sockaddr *)&ss);
1534         } else {
1535                 printf("unknown structure\n");
1536         }
1537         return;
1538 invalid:
1539         printf("invalid record\n");
1540 }
1541
1542 void
1543 ktrfault(struct ktr_fault *ktr)
1544 {
1545
1546         printf("0x%jx ", ktr->vaddr);
1547         vmprotname(ktr->type);
1548         printf("\n");
1549 }
1550
1551 void
1552 ktrfaultend(struct ktr_faultend *ktr)
1553 {
1554
1555         vmresultname(ktr->result);
1556         printf("\n");
1557 }
1558
1559 #if defined(__amd64__) || defined(__i386__)
1560 void
1561 linux_ktrsyscall(struct ktr_syscall *ktr)
1562 {
1563         int narg = ktr->ktr_narg;
1564         register_t *ip;
1565
1566         if (ktr->ktr_code >= nlinux_syscalls || ktr->ktr_code < 0)
1567                 printf("[%d]", ktr->ktr_code);
1568         else
1569                 printf("%s", linux_syscallnames[ktr->ktr_code]);
1570         ip = &ktr->ktr_args[0];
1571         if (narg) {
1572                 char c = '(';
1573                 while (narg > 0)
1574                         print_number(ip, narg, c);
1575                 putchar(')');
1576         }
1577         putchar('\n');
1578 }
1579
1580 void
1581 linux_ktrsysret(struct ktr_sysret *ktr)
1582 {
1583         register_t ret = ktr->ktr_retval;
1584         int error = ktr->ktr_error;
1585         int code = ktr->ktr_code;
1586
1587         if (code >= nlinux_syscalls || code < 0)
1588                 printf("[%d] ", code);
1589         else
1590                 printf("%s ", linux_syscallnames[code]);
1591
1592         if (error == 0) {
1593                 if (fancy) {
1594                         printf("%ld", (long)ret);
1595                         if (ret < 0 || ret > 9)
1596                                 printf("/%#lx", (long)ret);
1597                 } else {
1598                         if (decimal)
1599                                 printf("%ld", (long)ret);
1600                         else
1601                                 printf("%#lx", (long)ret);
1602                 }
1603         } else if (error == ERESTART)
1604                 printf("RESTART");
1605         else if (error == EJUSTRETURN)
1606                 printf("JUSTRETURN");
1607         else {
1608                 if (ktr->ktr_error <= ELAST + 1)
1609                         error = abs(bsd_to_linux_errno[ktr->ktr_error]);
1610                 else
1611                         error = 999;
1612                 printf("-1 errno %d", error);
1613                 if (fancy)
1614                         printf(" %s", strerror(ktr->ktr_error));
1615         }
1616         putchar('\n');
1617 }
1618 #endif
1619
1620 void
1621 usage(void)
1622 {
1623         fprintf(stderr, "usage: kdump [-dEnlHRrsTA] [-f trfile] "
1624             "[-m maxdata] [-p pid] [-t trstr]\n");
1625         exit(1);
1626 }