2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1994 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
19 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
27 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <sys/param.h>
32 #define _WANT_SYSVMSG_INTERNALS
34 #define _WANT_SYSVSEM_INTERNALS
36 #define _WANT_SYSVSHM_INTERNALS
52 char *fmt_perm(u_short);
53 void cvt_time(time_t, char *);
55 uid_t user2uid(char *username);
57 void print_kmsqtotal(struct msginfo msginfo);
58 void print_kmsqheader(int option);
59 void print_kmsqptr(int i, int option, struct msqid_kernel *kmsqptr);
60 void print_kshmtotal(struct shminfo shminfo);
61 void print_kshmheader(int option);
62 void print_kshmptr(int i, int option, struct shmid_kernel *kshmptr);
63 void print_ksemtotal(struct seminfo seminfo);
64 void print_ksemheader(int option);
65 void print_ksemptr(int i, int option, struct semid_kernel *ksemaptr);
68 fmt_perm(u_short mode)
70 static char buffer[100];
74 buffer[2] = ((mode & 0400) ? 'r' : '-');
75 buffer[3] = ((mode & 0200) ? 'w' : '-');
76 buffer[4] = ((mode & 0100) ? 'a' : '-');
77 buffer[5] = ((mode & 0040) ? 'r' : '-');
78 buffer[6] = ((mode & 0020) ? 'w' : '-');
79 buffer[7] = ((mode & 0010) ? 'a' : '-');
80 buffer[8] = ((mode & 0004) ? 'r' : '-');
81 buffer[9] = ((mode & 0002) ? 'w' : '-');
82 buffer[10] = ((mode & 0001) ? 'a' : '-');
88 cvt_time(time_t t, char *buf)
93 strcpy(buf, "no-entry");
96 sprintf(buf, "%2d:%02d:%02d",
97 tm->tm_hour, tm->tm_min, tm->tm_sec);
103 #define OUTSTANDING 4
108 main(int argc, char *argv[])
110 int display = SHMINFO | MSGINFO | SEMINFO;
112 char *core = NULL, *user = NULL, *namelist = NULL;
113 char kvmoferr[_POSIX2_LINE_MAX]; /* Error buf for kvm_openfiles. */
118 while ((i = getopt(argc, argv, "MmQqSsabC:cN:optTu:y")) != -1)
121 option |= BIGGEST | CREATOR | OUTSTANDING | PID | TIME;
142 option |= OUTSTANDING;
160 display = SHMTOTAL | MSGTOTAL | SEMTOTAL;
167 uid = user2uid(user);
177 * If paths to the exec file or core file were specified, we
178 * aren't operating on the running kernel, so we can't use
181 if (namelist != NULL || core != NULL)
185 kd = kvm_openfiles(namelist, core, NULL, O_RDONLY, kvmoferr);
187 errx(1, "kvm_openfiles: %s", kvmoferr);
188 switch (kvm_nlist(kd, symbols)) {
192 errx(1, "unable to read kernel symbol table");
198 kget(X_MSGINFO, &msginfo, sizeof(msginfo));
199 if (display & (MSGINFO | MSGTOTAL)) {
200 if (display & MSGTOTAL)
201 print_kmsqtotal(msginfo);
203 if (display & MSGINFO) {
204 struct msqid_kernel *kxmsqids;
208 sizeof(struct msqid_kernel) * msginfo.msgmni;
209 kxmsqids = malloc(kxmsqids_len);
210 kget(X_MSQIDS, kxmsqids, kxmsqids_len);
212 print_kmsqheader(option);
214 for (i = 0; i < msginfo.msgmni; i += 1) {
215 if (kxmsqids[i].u.msg_qbytes != 0) {
217 uid != kxmsqids[i].u.msg_perm.uid)
220 print_kmsqptr(i, option, &kxmsqids[i]);
229 kget(X_SHMINFO, &shminfo, sizeof(shminfo));
230 if (display & (SHMINFO | SHMTOTAL)) {
232 if (display & SHMTOTAL)
233 print_kshmtotal(shminfo);
235 if (display & SHMINFO) {
236 struct shmid_kernel *kxshmids;
240 sizeof(struct shmid_kernel) * shminfo.shmmni;
241 kxshmids = malloc(kxshmids_len);
242 kget(X_SHMSEGS, kxshmids, kxshmids_len);
244 print_kshmheader(option);
246 for (shmidx = 0; shmidx < shminfo.shmmni; shmidx += 1) {
247 if (kxshmids[shmidx].u.shm_perm.mode & 0x0800) {
249 uid != kxshmids[shmidx].u.shm_perm.uid)
252 print_kshmptr(shmidx, option, &kxshmids[shmidx]);
259 kget(X_SEMINFO, &seminfo, sizeof(seminfo));
260 if (display & (SEMINFO | SEMTOTAL)) {
261 struct semid_kernel *kxsema;
264 if (display & SEMTOTAL)
265 print_ksemtotal(seminfo);
267 if (display & SEMINFO) {
269 sizeof(struct semid_kernel) * seminfo.semmni;
270 kxsema = malloc(kxsema_len);
271 kget(X_SEMA, kxsema, kxsema_len);
273 print_ksemheader(option);
275 for (i = 0; i < seminfo.semmni; i += 1) {
276 if ((kxsema[i].u.sem_perm.mode & SEM_ALLOC)
279 uid != kxsema[i].u.sem_perm.uid)
282 print_ksemptr(i, option, &kxsema[i]);
298 print_kmsqtotal(struct msginfo local_msginfo)
301 printf("msginfo:\n");
302 printf("\tmsgmax: %12d\t(max characters in a message)\n",
303 local_msginfo.msgmax);
304 printf("\tmsgmni: %12d\t(# of message queues)\n",
305 local_msginfo.msgmni);
306 printf("\tmsgmnb: %12d\t(max characters in a message queue)\n",
307 local_msginfo.msgmnb);
308 printf("\tmsgtql: %12d\t(max # of messages in system)\n",
309 local_msginfo.msgtql);
310 printf("\tmsgssz: %12d\t(size of a message segment)\n",
311 local_msginfo.msgssz);
312 printf("\tmsgseg: %12d\t(# of message segments in system)\n\n",
313 local_msginfo.msgseg);
316 void print_kmsqheader(int option)
319 printf("Message Queues:\n");
320 printf("T %12s %12s %-11s %-8s %-8s",
321 "ID", "KEY", "MODE", "OWNER", "GROUP");
322 if (option & CREATOR)
323 printf(" %-8s %-8s", "CREATOR", "CGROUP");
324 if (option & OUTSTANDING)
325 printf(" %20s %20s", "CBYTES", "QNUM");
326 if (option & BIGGEST)
327 printf(" %20s", "QBYTES");
329 printf(" %12s %12s", "LSPID", "LRPID");
331 printf(" %-8s %-8s %-8s", "STIME", "RTIME", "CTIME");
336 print_kmsqptr(int i, int option, struct msqid_kernel *kmsqptr)
338 char stime_buf[100], rtime_buf[100], ctime_buf[100];
340 cvt_time(kmsqptr->u.msg_stime, stime_buf);
341 cvt_time(kmsqptr->u.msg_rtime, rtime_buf);
342 cvt_time(kmsqptr->u.msg_ctime, ctime_buf);
344 printf("q %12d %12d %s %-8s %-8s",
345 IXSEQ_TO_IPCID(i, kmsqptr->u.msg_perm),
346 (int)kmsqptr->u.msg_perm.key,
347 fmt_perm(kmsqptr->u.msg_perm.mode),
348 user_from_uid(kmsqptr->u.msg_perm.uid, 0),
349 group_from_gid(kmsqptr->u.msg_perm.gid, 0));
351 if (option & CREATOR)
353 user_from_uid(kmsqptr->u.msg_perm.cuid, 0),
354 group_from_gid(kmsqptr->u.msg_perm.cgid, 0));
356 if (option & OUTSTANDING)
357 printf(" %12lu %12lu",
358 kmsqptr->u.msg_cbytes,
359 kmsqptr->u.msg_qnum);
361 if (option & BIGGEST)
362 printf(" %20lu", kmsqptr->u.msg_qbytes);
366 kmsqptr->u.msg_lspid,
367 kmsqptr->u.msg_lrpid);
379 print_kshmtotal(struct shminfo local_shminfo)
382 printf("shminfo:\n");
383 printf("\tshmmax: %12lu\t(max shared memory segment size)\n",
384 local_shminfo.shmmax);
385 printf("\tshmmin: %12lu\t(min shared memory segment size)\n",
386 local_shminfo.shmmin);
387 printf("\tshmmni: %12lu\t(max number of shared memory identifiers)\n",
388 local_shminfo.shmmni);
389 printf("\tshmseg: %12lu\t(max shared memory segments per process)\n",
390 local_shminfo.shmseg);
391 printf("\tshmall: %12lu\t(max amount of shared memory in pages)\n\n",
392 local_shminfo.shmall);
396 print_kshmheader(int option)
399 printf("Shared Memory:\n");
400 printf("T %12s %12s %-11s %-8s %-8s",
401 "ID", "KEY", "MODE", "OWNER", "GROUP");
402 if (option & CREATOR)
403 printf(" %-8s %-8s", "CREATOR", "CGROUP");
404 if (option & OUTSTANDING)
405 printf(" %12s", "NATTCH");
406 if (option & BIGGEST)
407 printf(" %12s", "SEGSZ");
409 printf(" %12s %12s", "CPID", "LPID");
411 printf(" %-8s %-8s %-8s", "ATIME", "DTIME", "CTIME");
416 print_kshmptr(int i, int option, struct shmid_kernel *kshmptr)
418 char atime_buf[100], dtime_buf[100], ctime_buf[100];
420 cvt_time(kshmptr->u.shm_atime, atime_buf);
421 cvt_time(kshmptr->u.shm_dtime, dtime_buf);
422 cvt_time(kshmptr->u.shm_ctime, ctime_buf);
424 printf("m %12d %12d %s %-8s %-8s",
425 IXSEQ_TO_IPCID(i, kshmptr->u.shm_perm),
426 (int)kshmptr->u.shm_perm.key,
427 fmt_perm(kshmptr->u.shm_perm.mode),
428 user_from_uid(kshmptr->u.shm_perm.uid, 0),
429 group_from_gid(kshmptr->u.shm_perm.gid, 0));
431 if (option & CREATOR)
433 user_from_uid(kshmptr->u.shm_perm.cuid, 0),
434 group_from_gid(kshmptr->u.shm_perm.cgid, 0));
436 if (option & OUTSTANDING)
438 kshmptr->u.shm_nattch);
440 if (option & BIGGEST)
442 kshmptr->u.shm_segsz);
447 kshmptr->u.shm_lpid);
459 print_ksemtotal(struct seminfo local_seminfo)
462 printf("seminfo:\n");
463 printf("\tsemmni: %12d\t(# of semaphore identifiers)\n",
464 local_seminfo.semmni);
465 printf("\tsemmns: %12d\t(# of semaphores in system)\n",
466 local_seminfo.semmns);
467 printf("\tsemmnu: %12d\t(# of undo structures in system)\n",
468 local_seminfo.semmnu);
469 printf("\tsemmsl: %12d\t(max # of semaphores per id)\n",
470 local_seminfo.semmsl);
471 printf("\tsemopm: %12d\t(max # of operations per semop call)\n",
472 local_seminfo.semopm);
473 printf("\tsemume: %12d\t(max # of undo entries per process)\n",
474 local_seminfo.semume);
475 printf("\tsemusz: %12d\t(size in bytes of undo structure)\n",
476 local_seminfo.semusz);
477 printf("\tsemvmx: %12d\t(semaphore maximum value)\n",
478 local_seminfo.semvmx);
479 printf("\tsemaem: %12d\t(adjust on exit max value)\n\n",
480 local_seminfo.semaem);
484 print_ksemheader(int option)
487 printf("Semaphores:\n");
488 printf("T %12s %12s %-11s %-8s %-8s",
489 "ID", "KEY", "MODE", "OWNER", "GROUP");
490 if (option & CREATOR)
491 printf(" %-8s %-8s", "CREATOR", "CGROUP");
492 if (option & BIGGEST)
493 printf(" %12s", "NSEMS");
495 printf(" %-8s %-8s", "OTIME", "CTIME");
500 print_ksemptr(int i, int option, struct semid_kernel *ksemaptr)
502 char ctime_buf[100], otime_buf[100];
504 cvt_time(ksemaptr->u.sem_otime, otime_buf);
505 cvt_time(ksemaptr->u.sem_ctime, ctime_buf);
507 printf("s %12d %12d %s %-8s %-8s",
508 IXSEQ_TO_IPCID(i, ksemaptr->u.sem_perm),
509 (int)ksemaptr->u.sem_perm.key,
510 fmt_perm(ksemaptr->u.sem_perm.mode),
511 user_from_uid(ksemaptr->u.sem_perm.uid, 0),
512 group_from_gid(ksemaptr->u.sem_perm.gid, 0));
514 if (option & CREATOR)
516 user_from_uid(ksemaptr->u.sem_perm.cuid, 0),
517 group_from_gid(ksemaptr->u.sem_perm.cgid, 0));
519 if (option & BIGGEST)
521 ksemaptr->u.sem_nsems);
532 user2uid(char *username)
538 uid = strtoul(username, &r, 0);
539 if (!*r && r != username)
541 if ((pwd = getpwnam(username)) == NULL)
542 errx(1, "getpwnam failed: No such user");
544 return (pwd->pw_uid);
553 "ipcs [-abcmopqstyMQST] [-C corefile] [-N namelist] [-u user]\n");