ipcs/ipcs.c

   1 /*
   2  * Copyright (c) 1994 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
   3  * 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. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  17  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  18  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
  19  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #include <sys/cdefs.h>
  29
  30 #include <assert.h>
  31 #include <err.h>
  32 #include <fcntl.h>
  33 #include <grp.h>
  34 #include <nlist.h>
  35 #include <limits.h>
  36 #include <paths.h>
  37 #include <pwd.h>
  38 #include <stddef.h>
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <unistd.h>
  43 #include <sysexits.h>
  44
  45 #include "sys/types.h"
  46 #include <sys/ucred.h>
  47 #include <sys/time.h>
  48 #include <sys/proc.h>
  49 #include <sys/param.h>
  50 #include <sys/sysctl.h>
  51 #include <errno.h>
  52 #include "sys/ipcs.h"
  53 #define KERNEL 1                /* To get new ipc_perm and __(sem|shm|msg)ds_new */
  54 #include "sys/ipc.h"
  55 #include "sys/sem_internal.h"
  56 #include "sys/shm_internal.h"
  57 #include "sys/msg.h"
  58
  59
  60 /* The following is a kludge, until the problem of multiple inclusions
  61    of ipc.h is taken care of. */
  62 #ifndef IXSEQ_TO_IPCID
  63 #define IXSEQ_TO_IPCID(ix,perm) (((perm._seq) << 16L) | (ix & 0xffff))
  64 #endif
  65
  66 static char   *
  67 fmt_perm(u_short mode, char write_char)
  68 {
  69         static char buffer[100];
  70
  71         buffer[0] = '-';
  72         buffer[1] = '-';
  73         buffer[2] = ((mode & 0400) ? 'r' : '-');
  74         buffer[3] = ((mode & 0200) ? write_char : '-');
  75         buffer[4] = '-';
  76         buffer[5] = ((mode & 0040) ? 'r' : '-');
  77         buffer[6] = ((mode & 0020) ? write_char : '-');
  78         buffer[7] = '-';
  79         buffer[8] = ((mode & 0004) ? 'r' : '-');
  80         buffer[9] = ((mode & 0002) ? write_char : '-');
  81         buffer[10] = '-';
  82         buffer[11] = '\0';
  83         return (&buffer[0]);
  84 }
  85
  86 static void
  87 cvt_time(time_t t, char *buf)
  88 {
  89         struct tm *tm;
  90
  91         if (t == 0) {
  92                 strcpy(buf, "no-entry");
  93         } else {
  94                 tm = localtime(&t);
  95                 if (tm != NULL) {
  96                         sprintf(buf, "%2d:%02d:%02d",
  97                                 tm->tm_hour, tm->tm_min, tm->tm_sec);
  98                 }
  99         }
 100 }
 101 #define SHMINFO         1
 102 #define SHMTOTAL        2
 103 #define MSGINFO         4
 104 #define MSGTOTAL        8
 105 #define SEMINFO         16
 106 #define SEMTOTAL        32
 107
 108 #define BIGGEST         1
 109 #define CREATOR         2
 110 #define OUTSTANDING     4
 111 #define PID             8
 112 #define TIME            16
 113
 114 static void
 115 usage(void)
 116 {
 117         errx(EX_USAGE, "%s","usage: ipcs [-abcmopqstMQST]\n");
 118 }
 119
 120 static int
 121 safe_sysctlbyname(const char *name, void *oldp, size_t *oldlenp, void *newp, size_t newlen)
 122 {
 123         int rv, sv_errno=0;
 124
 125         if (seteuid(0)) /* iterator needs root write access to sysctl */
 126                 err(1, "seteuid(0) failed");
 127
 128         rv = sysctlbyname(name, oldp, oldlenp, newp, newlen);
 129         if (rv < 0)
 130                 sv_errno = errno;
 131
 132         if (seteuid(getuid()))
 133                 err(1, "seteuid(%d) failed", getuid());
 134
 135         if (rv < 0)
 136                 errno = sv_errno;
 137         return rv;
 138 }
 139
 140 int
 141 main(argc, argv)
 142         int     argc;
 143         char   *argv[];
 144 {
 145         int     display = 0;
 146         int     option = 0;
 147         int     exit_val = 0;
 148         time_t  now;
 149         char    datestring[100];
 150         int     i;
 151
 152         if (seteuid(getuid()))  /* run as user */
 153                 err(1, "seteuid(%d) failed", getuid());
 154
 155         while ((i = getopt(argc, argv, "MmQqSsabcoptT")) != -1)
 156                 switch (i) {
 157                 case 'M':
 158                         display = SHMTOTAL;
 159                         break;
 160                 case 'm':
 161                         display |= SHMINFO;
 162                         break;
 163                 case 'Q':
 164                         display = MSGTOTAL;
 165                         break;
 166                 case 'q':
 167                         display |= MSGINFO;
 168                         break;
 169                 case 'S':
 170                         display = SEMTOTAL;
 171                         break;
 172                 case 's':
 173                         display |= SEMINFO;
 174                         break;
 175                 case 'T':
 176                         display = SHMTOTAL | MSGTOTAL | SEMTOTAL;
 177                         break;
 178                 case 'a':
 179                         option |= BIGGEST | CREATOR | OUTSTANDING | PID | TIME;
 180                         break;
 181                 case 'b':
 182                         option |= BIGGEST;
 183                         break;
 184                 case 'c':
 185                         option |= CREATOR;
 186                         break;
 187                 case 'o':
 188                         option |= OUTSTANDING;
 189                         break;
 190                 case 'p':
 191                         option |= PID;
 192                         break;
 193                 case 't':
 194                         option |= TIME;
 195                         break;
 196                 default:
 197                         usage();
 198                 }
 199         if (display == 0)
 200                 display = SHMINFO | MSGINFO | SEMINFO;
 201         now = time(0);
 202         struct tm* tm = localtime(&now);
 203         if (tm == NULL) {
 204                 now = 0;
 205                 tm = localtime(&now);
 206         }
 207         if (0 == strftime(datestring, sizeof(datestring), "%a %b %e %H:%M:%S %Z %Y", tm))
 208             errx(1, "strftime failed\n");
 209         printf("IPC status from <running system> as of %s\n", datestring);
 210         if ((display & (MSGINFO | MSGTOTAL))) {
 211                 if (display & MSGTOTAL) {
 212                         struct IPCS_command ic;
 213                         struct msginfo msginfo;
 214                         size_t ic_size = sizeof(ic);
 215
 216                         ic.ipcs_magic = IPCS_MAGIC;
 217                         ic.ipcs_op = IPCS_MSG_CONF;
 218                         ic.ipcs_cursor = 0;     /* 0 for fw. compat. */
 219                         ic.ipcs_data = &msginfo;
 220                         ic.ipcs_datalen = sizeof(msginfo);
 221
 222                         if (safe_sysctlbyname(IPCS_MSG_SYSCTL, &ic, &ic_size, &ic, ic_size)) {
 223                                 if (errno != EPERM) {
 224                                         char buffer[1024];
 225                                         snprintf(buffer, 1024, "sysctlbyname(IPCS_MSG_SYSCTL, op=CONF, &ic, &%ld) datalen=%d",
 226                                                  sizeof(ic), ic.ipcs_datalen);
 227                                         perror(buffer);
 228                                 } else
 229                                         perror("sysctlbyname IPCS_MSG_SYSCTL");
 230                         }
 231
 232                         printf("msginfo:\n");
 233                         printf("\tmsgmax: %6d\t(max characters in a message)\n",
 234                             msginfo.msgmax);
 235                         printf("\tmsgmni: %6d\t(# of message queues)\n",
 236                             msginfo.msgmni);
 237                         printf("\tmsgmnb: %6d\t(max characters in a message queue)\n",
 238                             msginfo.msgmnb);
 239                         printf("\tmsgtql: %6d\t(max # of messages in system)\n",
 240                             msginfo.msgtql);
 241                         printf("\tmsgssz: %6d\t(size of a message segment)\n",
 242                             msginfo.msgssz);
 243                         printf("\tmsgseg: %6d\t(# of message segments in system)\n\n",
 244                             msginfo.msgseg);
 245                 }
 246                 if (display & MSGINFO) {
 247                         struct IPCS_command ic;
 248                         struct __msqid_ds_new ds;
 249                         struct __msqid_ds_new *msqptr = &ds;
 250                         size_t ic_size = sizeof(ic);
 251
 252                         printf("T     ID     KEY        MODE       OWNER    GROUP");
 253                         if (option & CREATOR)
 254                                 printf("  CREATOR   CGROUP");
 255                         if (option & OUTSTANDING)
 256                                 printf(" CBYTES  QNUM");
 257                         if (option & BIGGEST)
 258                                 printf(" QBYTES");
 259                         if (option & PID)
 260                                 printf(" LSPID LRPID");
 261                         if (option & TIME)
 262                                 printf("   STIME    RTIME    CTIME");
 263                         printf("\nMessage Queues:\n");
 264
 265                         ic.ipcs_magic = IPCS_MAGIC;
 266                         ic.ipcs_op = IPCS_MSG_ITER;
 267                         ic.ipcs_cursor = 0;     /* start */
 268                         ic.ipcs_datalen = sizeof(*msqptr);
 269                         ic.ipcs_data = msqptr;
 270
 271                         memset(msqptr, 0, sizeof(*msqptr));
 272
 273                         while(!(safe_sysctlbyname(IPCS_MSG_SYSCTL, &ic, &ic_size, &ic, ic_size))) {
 274                                 ic.ipcs_data = msqptr;
 275
 276                                 if (msqptr->msg_qbytes != 0) {
 277                                         char    stime_buf[100], rtime_buf[100],
 278                                                 ctime_buf[100];
 279
 280                                         cvt_time(msqptr->msg_stime, stime_buf);
 281                                         cvt_time(msqptr->msg_rtime, rtime_buf);
 282                                         cvt_time(msqptr->msg_ctime, ctime_buf);
 283
 284                                         printf("q %6d 0x%08x %s %8s %8s",
 285                                                IXSEQ_TO_IPCID((ic.ipcs_cursor-1), msqptr->msg_perm),
 286                                             (int)msqptr->msg_perm._key,
 287                                             fmt_perm(msqptr->msg_perm.mode, 'w'),
 288                                             user_from_uid(msqptr->msg_perm.uid, 0),
 289                                             group_from_gid(msqptr->msg_perm.gid, 0));
 290
 291                                         if (option & CREATOR)
 292                                                 printf(" %8s %8s",
 293                                                     user_from_uid(msqptr->msg_perm.cuid, 0),
 294                                                     group_from_gid(msqptr->msg_perm.cgid, 0));
 295
 296                                         if (option & OUTSTANDING)
 297                                                 printf(" %6lu %6lu",
 298                                                     msqptr->msg_cbytes,
 299                                                     msqptr->msg_qnum);
 300
 301                                         if (option & BIGGEST)
 302                                                 printf(" %6lu",
 303                                                     msqptr->msg_qbytes);
 304
 305                                         if (option & PID)
 306                                                 printf(" %6d %6d",
 307                                                     msqptr->msg_lspid,
 308                                                     msqptr->msg_lrpid);
 309
 310                                         if (option & TIME)
 311                                                 printf(" %s %s %s",
 312                                                     stime_buf,
 313                                                     rtime_buf,
 314                                                     ctime_buf);
 315
 316                                         printf("\n");
 317                                 }
 318                                 memset(msqptr, 0, sizeof(*msqptr));
 319                                 errno = 0;
 320                         }
 321
 322                         if (errno != ENOENT && errno != ERANGE) {
 323                                 if (errno != EPERM) {
 324                                         errx(1, "sysctlbyname(IPCS_MSG_SYSCTL, op=ITER, &ic, &%ld) datalen=%d failed:%s\n",
 325                                                  sizeof(ic), ic.ipcs_datalen, strerror(errno));
 326                                 } else
 327                                         errx(1, "sysctlbyname IPCS_MSG_SYSCTL: %s", strerror(errno));
 328                         }
 329                         printf("\n");
 330                 }
 331         } else
 332                 if (display & (MSGINFO | MSGTOTAL)) {
 333                         errx(1, "%s", "SVID messages facility not configured in the system\n");
 334                 }
 335
 336         if ((display & (SHMINFO | SHMTOTAL))) {
 337                 if (display & SHMTOTAL) {
 338                         struct IPCS_command ic;
 339                         struct shminfo shminfo;
 340                         size_t ic_size = sizeof(ic);
 341
 342                         ic.ipcs_magic = IPCS_MAGIC;
 343                         ic.ipcs_op = IPCS_SHM_CONF;
 344                         ic.ipcs_cursor = 0;     /* 0 for fw. compat. */
 345                         ic.ipcs_data = &shminfo;
 346                         ic.ipcs_datalen = sizeof(shminfo);
 347
 348                         if (safe_sysctlbyname(IPCS_SHM_SYSCTL, &ic, &ic_size, &ic, ic_size)) {
 349                                 if (errno != EPERM) {
 350                                         errx(1, "sysctlbyname(IPCS_SHM_SYSCTL, op=CONF, &ic, &%ld) datalen=%d failed: %s\n",
 351                                              sizeof(ic), ic.ipcs_datalen, strerror(errno));
 352                                 } else
 353                                         errx(1, "sysctlbyname: %s", strerror(errno));
 354                         }
 355                         printf("shminfo:\n");
 356                         printf("\tshmmax: %7lld\t(max shared memory segment size)\n",
 357                             shminfo.shmmax);
 358                         printf("\tshmmin: %7lld\t(min shared memory segment size)\n",
 359                             shminfo.shmmin);
 360                         printf("\tshmmni: %7lld\t(max number of shared memory identifiers)\n",
 361                             shminfo.shmmni);
 362                         printf("\tshmseg: %7lld\t(max shared memory segments per process)\n",
 363                             shminfo.shmseg);
 364                         printf("\tshmall: %7lld\t(max amount of shared memory in pages)\n\n",
 365                             shminfo.shmall);
 366                 }
 367                 if (display & SHMINFO) {
 368                         struct IPCS_command ic;
 369                         struct __shmid_ds_new ds;
 370                         struct __shmid_ds_new *shmptr = &ds;
 371                         size_t ic_size = sizeof(ic);
 372
 373                         printf("T     ID     KEY        MODE       OWNER    GROUP");
 374                         if (option & CREATOR)
 375                                 printf("  CREATOR   CGROUP");
 376                         if (option & OUTSTANDING)
 377                                 printf(" NATTCH");
 378                         if (option & BIGGEST)
 379                                 printf("  SEGSZ");
 380                         if (option & PID)
 381                                 printf("  CPID  LPID");
 382                         if (option & TIME)
 383                                 printf("   ATIME    DTIME    CTIME");
 384                         printf("\nShared Memory:\n");
 385                 {       /* XXX */
 386
 387                         ic.ipcs_magic = IPCS_MAGIC;
 388                         ic.ipcs_op = IPCS_SHM_ITER;
 389                         ic.ipcs_cursor = 0;     /* start */
 390                         ic.ipcs_datalen = sizeof(*shmptr);
 391                         ic.ipcs_data = shmptr;
 392                         memset(shmptr, 0, sizeof(*shmptr));
 393
 394                         while(!(safe_sysctlbyname(IPCS_SHM_SYSCTL, &ic, &ic_size, &ic, ic_size))) {
 395                                 ic.ipcs_data = shmptr; /* xnu workaround */
 396
 397                                 if (shmptr->shm_perm.mode & 0x0800) {
 398                                         char    atime_buf[100], dtime_buf[100],
 399                                                 ctime_buf[100];
 400
 401                                         cvt_time(shmptr->shm_atime, atime_buf);
 402                                         cvt_time(shmptr->shm_dtime, dtime_buf);
 403                                         cvt_time(shmptr->shm_ctime, ctime_buf);
 404
 405                                         printf("m %6d 0x%08x %s %8s %8s",
 406                                                IXSEQ_TO_IPCID((ic.ipcs_cursor-1), shmptr->shm_perm),
 407                                             (int)shmptr->shm_perm._key,
 408                                             fmt_perm(shmptr->shm_perm.mode, 'w'),
 409                                             user_from_uid(shmptr->shm_perm.uid, 0),
 410                                             group_from_gid(shmptr->shm_perm.gid, 0));
 411
 412                                         if (option & CREATOR)
 413                                                 printf(" %8s %8s",
 414                                                     user_from_uid(shmptr->shm_perm.cuid, 0),
 415                                                     group_from_gid(shmptr->shm_perm.cgid, 0));
 416
 417                                         if (option & OUTSTANDING)
 418                                                 printf(" %6d",
 419                                                     shmptr->shm_nattch);
 420
 421                                         if (option & BIGGEST)
 422                                                 printf(" %6ld",
 423                                                     shmptr->shm_segsz);
 424
 425                                         if (option & PID)
 426                                                 printf(" %6d %6d",
 427                                                     shmptr->shm_cpid,
 428                                                     shmptr->shm_lpid);
 429
 430                                         if (option & TIME)
 431                                                 printf(" %s %s %s",
 432                                                     atime_buf,
 433                                                     dtime_buf,
 434                                                     ctime_buf);
 435
 436                                         printf("\n");
 437                                 }
 438                                 memset(shmptr, 0, sizeof(*shmptr));
 439                                 errno = 0;
 440                         }
 441
 442                         if (errno != ENOENT && errno != ERANGE) {
 443                                 if (errno != EPERM) {
 444                                         errx(1, "sysctlbyname(IPCS_SHM_SYSCTL, op=ITER, &ic, &%ld) datalen=%d failed:%s\n",
 445                                                  sizeof(ic), ic.ipcs_datalen, strerror(errno));
 446                                 } else
 447                                         errx(1, "sysctlbyname: %s", strerror(errno));
 448                         }
 449                 }       /* XXX */
 450                         printf("\n");
 451                 }
 452         }
 453 else
 454                 if (display & (SHMINFO | SHMTOTAL)) {
 455                         errx(1, "%s", "SVID shared memory facility not configured in the system\n");
 456                 }
 457
 458         if ((display & (SEMINFO | SEMTOTAL))) {
 459                 if (display & SEMTOTAL) {
 460                         struct IPCS_command ic;
 461                         struct seminfo seminfo;
 462                         size_t ic_size = sizeof(ic);
 463
 464                         ic.ipcs_magic = IPCS_MAGIC;
 465                         ic.ipcs_op = IPCS_SEM_CONF;
 466                         ic.ipcs_cursor = 0;     /* 0 for fw. compat. */
 467                         ic.ipcs_data = &seminfo;
 468                         ic.ipcs_datalen = sizeof(seminfo);
 469
 470                         if (safe_sysctlbyname(IPCS_SEM_SYSCTL, &ic, &ic_size, &ic, ic_size)) {
 471                                 if (errno != EPERM) {
 472                                         char buffer[1024];
 473                                         snprintf(buffer, 1024, "sysctlbyname(IPCS_SEM_SYSCTL, op=CONF, &ic, &%ld) datalen=%d",
 474                                                  sizeof(ic), ic.ipcs_datalen);
 475                                         perror(buffer);
 476                                 } else
 477                                         perror("sysctlbyname IPCS_SEM_SYSCTL/SEM_CONF");
 478                         }
 479
 480                         printf("seminfo:\n");
 481                         printf("\tsemmap: %6d\t(# of entries in semaphore map)\n",
 482                             seminfo.semmap);
 483                         printf("\tsemmni: %6d\t(# of semaphore identifiers)\n",
 484                             seminfo.semmni);
 485                         printf("\tsemmns: %6d\t(# of semaphores in system)\n",
 486                             seminfo.semmns);
 487                         printf("\tsemmnu: %6d\t(# of undo structures in system)\n",
 488                             seminfo.semmnu);
 489                         printf("\tsemmsl: %6d\t(max # of semaphores per id)\n",
 490                             seminfo.semmsl);
 491                         printf("\tsemopm: %6d\t(max # of operations per semop call)\n",
 492                             seminfo.semopm);
 493                         printf("\tsemume: %6d\t(max # of undo entries per process)\n",
 494                             seminfo.semume);
 495                         printf("\tsemusz: %6d\t(size in bytes of undo structure)\n",
 496                             seminfo.semusz);
 497                         printf("\tsemvmx: %6d\t(semaphore maximum value)\n",
 498                             seminfo.semvmx);
 499                         printf("\tsemaem: %6d\t(adjust on exit max value)\n\n",
 500                             seminfo.semaem);
 501                 }
 502                 if (display & SEMINFO) {
 503                         struct IPCS_command ic;
 504                         struct __semid_ds_new ds;
 505                         struct __semid_ds_new *semaptr = &ds;
 506                         size_t ic_size = sizeof(ic);
 507
 508                         printf("T     ID     KEY        MODE       OWNER    GROUP");
 509                         if (option & CREATOR)
 510                                 printf("  CREATOR   CGROUP");
 511                         if (option & BIGGEST)
 512                                 printf(" NSEMS");
 513                         if (option & TIME)
 514                                 printf("   OTIME    CTIME");
 515                         printf("\nSemaphores:\n");
 516
 517                         ic.ipcs_magic = IPCS_MAGIC;
 518                         ic.ipcs_op = IPCS_SEM_ITER;
 519                         ic.ipcs_cursor = 0;     /* start */
 520                         ic.ipcs_datalen = sizeof(*semaptr);
 521                         ic.ipcs_data = semaptr;
 522
 523                         memset(semaptr, 0, sizeof(*semaptr));
 524
 525                         while(!(safe_sysctlbyname(IPCS_SEM_SYSCTL, &ic, &ic_size, &ic, ic_size))) {
 526                                 ic.ipcs_data = semaptr; /* xnu workaround */
 527
 528                                 if ((semaptr->sem_perm.mode & SEM_ALLOC) != 0) {
 529                                         char    ctime_buf[100], otime_buf[100];
 530
 531                                         cvt_time(semaptr->sem_otime, otime_buf);
 532                                         cvt_time(semaptr->sem_ctime, ctime_buf);
 533
 534                                         printf("s %6d 0x%08x %s %8s %8s",
 535                                                IXSEQ_TO_IPCID((ic.ipcs_cursor-1), semaptr->sem_perm),
 536                                             (int)semaptr->sem_perm._key,
 537                                             fmt_perm(semaptr->sem_perm.mode, 'a'),
 538                                             user_from_uid(semaptr->sem_perm.uid, 0),
 539                                             group_from_gid(semaptr->sem_perm.gid, 0));
 540
 541                                         if (option & CREATOR)
 542                                                 printf(" %8s %8s",
 543                                                     user_from_uid(semaptr->sem_perm.cuid, 0),
 544                                                     group_from_gid(semaptr->sem_perm.cgid, 0));
 545
 546                                         if (option & BIGGEST)
 547                                                 printf(" %6d",
 548                                                     semaptr->sem_nsems);
 549
 550                                         if (option & TIME)
 551                                                 printf(" %s %s",
 552                                                     otime_buf,
 553                                                     ctime_buf);
 554
 555                                         printf("\n");
 556                                 }
 557                                 memset(semaptr, 0, sizeof(*semaptr));
 558                                 errno = 0;
 559                         }
 560
 561                         if (errno != ENOENT && errno != ERANGE) {
 562                                 if (errno != EPERM) {
 563                                         errx(1, "sysctlbyname(IPCS_SEM_SYSCTL/ITER, op=ITER, &ic, &%ld) datalen=%d failed: %s\n",
 564                                                  sizeof(ic), ic.ipcs_datalen, strerror(errno));
 565                                 } else
 566                                         errx(1, "sysctlbyname: IPCS_SEM_SYSCTL %s", strerror(errno));
 567                         }
 568                         printf("\n");
 569                 }
 570         } else
 571                 if (display & (SEMINFO | SEMTOTAL)) {
 572                         errx(1, "%s", "SVID semaphores facility not configured in the system\n");
 573                 }
 574
 575         exit(exit_val);
 576 }