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