ipcs.c revision 1.33
1 /* $NetBSD: ipcs.c,v 1.33 2004/09/15 19:45:17 hubertf Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Simon Burge. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1994 SigmaSoft, Th. Lockert <tholo (at) sigmasoft.com> 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 52 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 53 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 54 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 55 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 56 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 57 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 58 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 59 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 60 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 61 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 */ 63 64 #include <sys/param.h> 65 #include <sys/sysctl.h> 66 #include <sys/ipc.h> 67 #include <sys/sem.h> 68 #include <sys/shm.h> 69 #include <sys/msg.h> 70 71 #include <err.h> 72 #include <fcntl.h> 73 #include <grp.h> 74 #include <kvm.h> 75 #include <limits.h> 76 #include <nlist.h> 77 #include <paths.h> 78 #include <pwd.h> 79 #include <stdio.h> 80 #include <stdlib.h> 81 #include <string.h> 82 #include <time.h> 83 #include <unistd.h> 84 85 void cvt_time(time_t, char *, size_t); 86 char *fmt_perm(u_short); 87 void ipcs_kvm(void); 88 int main(int, char **); 89 void msg_sysctl(void); 90 void sem_sysctl(void); 91 void shm_sysctl(void); 92 void show_msginfo(time_t, time_t, time_t, int, u_int64_t, mode_t, uid_t, 93 gid_t, uid_t, gid_t, u_int64_t, u_int64_t, u_int64_t, pid_t, pid_t); 94 void show_msginfo_hdr(void); 95 void show_msgtotal(struct msginfo *); 96 void show_seminfo_hdr(void); 97 void show_seminfo(time_t, time_t, int, u_int64_t, mode_t, uid_t, gid_t, 98 uid_t, gid_t, int16_t); 99 void show_semtotal(struct seminfo *); 100 void show_shminfo(time_t, time_t, time_t, int, u_int64_t, mode_t, uid_t, 101 gid_t, uid_t, gid_t, u_int32_t, u_int64_t, pid_t, pid_t); 102 void show_shminfo_hdr(void); 103 void show_shmtotal(struct shminfo *); 104 void usage(void); 105 106 char * 107 fmt_perm(u_short mode) 108 { 109 static char buffer[12]; 110 111 buffer[0] = '-'; 112 buffer[1] = '-'; 113 buffer[2] = ((mode & 0400) ? 'r' : '-'); 114 buffer[3] = ((mode & 0200) ? 'w' : '-'); 115 buffer[4] = ((mode & 0100) ? 'a' : '-'); 116 buffer[5] = ((mode & 0040) ? 'r' : '-'); 117 buffer[6] = ((mode & 0020) ? 'w' : '-'); 118 buffer[7] = ((mode & 0010) ? 'a' : '-'); 119 buffer[8] = ((mode & 0004) ? 'r' : '-'); 120 buffer[9] = ((mode & 0002) ? 'w' : '-'); 121 buffer[10] = ((mode & 0001) ? 'a' : '-'); 122 buffer[11] = '\0'; 123 return (&buffer[0]); 124 } 125 126 void 127 cvt_time(time_t t, char *buf, size_t buflen) 128 { 129 struct tm *tm; 130 131 if (t == 0) 132 (void)strlcpy(buf, "no-entry", buflen); 133 else { 134 tm = localtime(&t); 135 (void)snprintf(buf, buflen, "%2d:%02d:%02d", 136 tm->tm_hour, tm->tm_min, tm->tm_sec); 137 } 138 } 139 #define SHMINFO 1 140 #define SHMTOTAL 2 141 #define MSGINFO 4 142 #define MSGTOTAL 8 143 #define SEMINFO 16 144 #define SEMTOTAL 32 145 146 #define BIGGEST 1 147 #define CREATOR 2 148 #define OUTSTANDING 4 149 #define PID 8 150 #define TIME 16 151 152 char *core = NULL, *namelist = NULL; 153 int display = 0; 154 int option = 0; 155 156 int 157 main(int argc, char *argv[]) 158 { 159 int i; 160 161 while ((i = getopt(argc, argv, "MmQqSsabC:cN:optT")) != -1) 162 switch (i) { 163 case 'M': 164 display |= SHMTOTAL; 165 break; 166 case 'm': 167 display |= SHMINFO; 168 break; 169 case 'Q': 170 display |= MSGTOTAL; 171 break; 172 case 'q': 173 display |= MSGINFO; 174 break; 175 case 'S': 176 display |= SEMTOTAL; 177 break; 178 case 's': 179 display |= SEMINFO; 180 break; 181 case 'T': 182 display |= SHMTOTAL | MSGTOTAL | SEMTOTAL; 183 break; 184 case 'a': 185 option |= BIGGEST | CREATOR | OUTSTANDING | PID | TIME; 186 break; 187 case 'b': 188 option |= BIGGEST; 189 break; 190 case 'C': 191 core = optarg; 192 break; 193 case 'c': 194 option |= CREATOR; 195 break; 196 case 'N': 197 namelist = optarg; 198 break; 199 case 'o': 200 option |= OUTSTANDING; 201 break; 202 case 'p': 203 option |= PID; 204 break; 205 case 't': 206 option |= TIME; 207 break; 208 default: 209 usage(); 210 } 211 212 if (argc - optind > 0) 213 usage(); 214 215 if (display == 0) 216 display = SHMINFO | MSGINFO | SEMINFO; 217 218 if (core == NULL) { 219 if (display & (MSGINFO | MSGTOTAL)) 220 msg_sysctl(); 221 if (display & (SHMINFO | SHMTOTAL)) 222 shm_sysctl(); 223 if (display & (SEMINFO | SEMTOTAL)) 224 sem_sysctl(); 225 } else 226 ipcs_kvm(); 227 exit(0); 228 } 229 230 void 231 show_msgtotal(struct msginfo *msginfo) 232 { 233 printf("msginfo:\n"); 234 printf("\tmsgmax: %6d\t(max characters in a message)\n", 235 msginfo->msgmax); 236 printf("\tmsgmni: %6d\t(# of message queues)\n", 237 msginfo->msgmni); 238 printf("\tmsgmnb: %6d\t(max characters in a message queue)\n", 239 msginfo->msgmnb); 240 printf("\tmsgtql: %6d\t(max # of messages in system)\n", 241 msginfo->msgtql); 242 printf("\tmsgssz: %6d\t(size of a message segment)\n", 243 msginfo->msgssz); 244 printf("\tmsgseg: %6d\t(# of message segments in system)\n\n", 245 msginfo->msgseg); 246 } 247 248 void 249 show_shmtotal(struct shminfo *shminfo) 250 { 251 printf("shminfo:\n"); 252 printf("\tshmmax: %7d\t(max shared memory segment size)\n", 253 shminfo->shmmax); 254 printf("\tshmmin: %7d\t(min shared memory segment size)\n", 255 shminfo->shmmin); 256 printf("\tshmmni: %7d\t(max number of shared memory identifiers)\n", 257 shminfo->shmmni); 258 printf("\tshmseg: %7d\t(max shared memory segments per process)\n", 259 shminfo->shmseg); 260 printf("\tshmall: %7d\t(max amount of shared memory in pages)\n\n", 261 shminfo->shmall); 262 } 263 264 void 265 show_semtotal(struct seminfo *seminfo) 266 { 267 printf("seminfo:\n"); 268 printf("\tsemmap: %6d\t(# of entries in semaphore map)\n", 269 seminfo->semmap); 270 printf("\tsemmni: %6d\t(# of semaphore identifiers)\n", 271 seminfo->semmni); 272 printf("\tsemmns: %6d\t(# of semaphores in system)\n", 273 seminfo->semmns); 274 printf("\tsemmnu: %6d\t(# of undo structures in system)\n", 275 seminfo->semmnu); 276 printf("\tsemmsl: %6d\t(max # of semaphores per id)\n", 277 seminfo->semmsl); 278 printf("\tsemopm: %6d\t(max # of operations per semop call)\n", 279 seminfo->semopm); 280 printf("\tsemume: %6d\t(max # of undo entries per process)\n", 281 seminfo->semume); 282 printf("\tsemusz: %6d\t(size in bytes of undo structure)\n", 283 seminfo->semusz); 284 printf("\tsemvmx: %6d\t(semaphore maximum value)\n", 285 seminfo->semvmx); 286 printf("\tsemaem: %6d\t(adjust on exit max value)\n\n", 287 seminfo->semaem); 288 } 289 290 void 291 show_msginfo_hdr(void) 292 { 293 printf("Message Queues:\n"); 294 printf("T ID KEY MODE OWNER GROUP"); 295 if (option & CREATOR) 296 printf(" CREATOR CGROUP"); 297 if (option & OUTSTANDING) 298 printf(" CBYTES QNUM"); 299 if (option & BIGGEST) 300 printf(" QBYTES"); 301 if (option & PID) 302 printf(" LSPID LRPID"); 303 if (option & TIME) 304 printf(" STIME RTIME CTIME"); 305 printf("\n"); 306 } 307 308 void 309 show_msginfo(time_t stime, time_t rtime, time_t ctime, int ipcid, u_int64_t key, 310 mode_t mode, uid_t uid, gid_t gid, uid_t cuid, gid_t cgid, 311 u_int64_t cbytes, u_int64_t qnum, u_int64_t qbytes, pid_t lspid, 312 pid_t lrpid) 313 { 314 char stime_buf[100], rtime_buf[100], ctime_buf[100]; 315 316 if (option & TIME) { 317 cvt_time(stime, stime_buf, sizeof(stime_buf)); 318 cvt_time(rtime, rtime_buf, sizeof(rtime_buf)); 319 cvt_time(ctime, ctime_buf, sizeof(ctime_buf)); 320 } 321 322 printf("q %9d %10lld %s %8s %8s", ipcid, (long long)key, fmt_perm(mode), 323 user_from_uid(uid, 0), group_from_gid(gid, 0)); 324 325 if (option & CREATOR) 326 printf(" %8s %8s", user_from_uid(cuid, 0), 327 group_from_gid(cgid, 0)); 328 329 if (option & OUTSTANDING) 330 printf(" %6lld %5lld", (long long)cbytes, (long long)qnum); 331 332 if (option & BIGGEST) 333 printf(" %6lld", (long long)qbytes); 334 335 if (option & PID) 336 printf(" %5d %5d", lspid, lrpid); 337 338 if (option & TIME) 339 printf(" %s %s %s", stime_buf, rtime_buf, ctime_buf); 340 341 printf("\n"); 342 } 343 344 void 345 show_shminfo_hdr(void) 346 { 347 printf("Shared Memory:\n"); 348 printf("T ID KEY MODE OWNER GROUP"); 349 if (option & CREATOR) 350 printf(" CREATOR CGROUP"); 351 if (option & OUTSTANDING) 352 printf(" NATTCH"); 353 if (option & BIGGEST) 354 printf(" SEGSZ"); 355 if (option & PID) 356 printf(" CPID LPID"); 357 if (option & TIME) 358 printf(" ATIME DTIME CTIME"); 359 printf("\n"); 360 } 361 362 void 363 show_shminfo(time_t atime, time_t dtime, time_t ctime, int ipcid, u_int64_t key, 364 mode_t mode, uid_t uid, gid_t gid, uid_t cuid, gid_t cgid, 365 u_int32_t nattch, u_int64_t segsz, pid_t cpid, pid_t lpid) 366 { 367 char atime_buf[100], dtime_buf[100], ctime_buf[100]; 368 369 if (option & TIME) { 370 cvt_time(atime, atime_buf, sizeof(atime_buf)); 371 cvt_time(dtime, dtime_buf, sizeof(dtime_buf)); 372 cvt_time(ctime, ctime_buf, sizeof(ctime_buf)); 373 } 374 375 printf("m %9d %10lld %s %8s %8s", ipcid, (long long)key, fmt_perm(mode), 376 user_from_uid(uid, 0), group_from_gid(gid, 0)); 377 378 if (option & CREATOR) 379 printf(" %8s %8s", user_from_uid(cuid, 0), 380 group_from_gid(cgid, 0)); 381 382 if (option & OUTSTANDING) 383 printf(" %6d", nattch); 384 385 if (option & BIGGEST) 386 printf(" %7llu", (long long)segsz); 387 388 if (option & PID) 389 printf(" %5d %5d", cpid, lpid); 390 391 if (option & TIME) 392 printf(" %s %s %s", 393 atime_buf, 394 dtime_buf, 395 ctime_buf); 396 397 printf("\n"); 398 } 399 400 void 401 show_seminfo_hdr(void) 402 { 403 printf("Semaphores:\n"); 404 printf("T ID KEY MODE OWNER GROUP"); 405 if (option & CREATOR) 406 printf(" CREATOR CGROUP"); 407 if (option & BIGGEST) 408 printf(" NSEMS"); 409 if (option & TIME) 410 printf(" OTIME CTIME"); 411 printf("\n"); 412 } 413 414 void 415 show_seminfo(time_t otime, time_t ctime, int ipcid, u_int64_t key, mode_t mode, 416 uid_t uid, gid_t gid, uid_t cuid, gid_t cgid, int16_t nsems) 417 { 418 char ctime_buf[100], otime_buf[100]; 419 420 if (option & TIME) { 421 cvt_time(otime, otime_buf, sizeof(otime_buf)); 422 cvt_time(ctime, ctime_buf, sizeof(ctime_buf)); 423 } 424 425 printf("s %9d %10lld %s %8s %8s", ipcid, (long long)key, fmt_perm(mode), 426 user_from_uid(uid, 0), group_from_gid(gid, 0)); 427 428 if (option & CREATOR) 429 printf(" %8s %8s", user_from_uid(cuid, 0), 430 group_from_gid(cgid, 0)); 431 432 if (option & BIGGEST) 433 printf(" %5d", nsems); 434 435 if (option & TIME) 436 printf(" %s %s", otime_buf, ctime_buf); 437 438 printf("\n"); 439 } 440 441 void 442 msg_sysctl(void) 443 { 444 struct msg_sysctl_info *msgsi; 445 char *buf; 446 int mib[3]; 447 size_t len; 448 int i, valid; 449 450 mib[0] = CTL_KERN; 451 mib[1] = KERN_SYSVMSG; 452 len = sizeof(valid); 453 if (sysctl(mib, 2, &valid, &len, NULL, 0) < 0) { 454 perror("sysctl(KERN_SYSVMSG)"); 455 return; 456 } 457 if (!valid) { 458 fprintf(stderr, 459 "SVID messages facility not configured in the system\n"); 460 return; 461 } 462 463 mib[0] = CTL_KERN; 464 mib[1] = KERN_SYSVIPC_INFO; 465 mib[2] = KERN_SYSVIPC_MSG_INFO; 466 467 if (!(display & MSGINFO)) { 468 /* totals only */ 469 len = sizeof(struct msginfo); 470 } else { 471 if (sysctl(mib, 3, NULL, &len, NULL, 0) < 0) { 472 perror("sysctl(KERN_SYSVIPC_MSG_INFO)"); 473 return; 474 } 475 } 476 477 if ((buf = malloc(len)) == NULL) 478 err(1, "malloc"); 479 msgsi = (struct msg_sysctl_info *)buf; 480 if (sysctl(mib, 3, msgsi, &len, NULL, 0) < 0) { 481 perror("sysctl(KERN_SYSVIPC_MSG_INFO)"); 482 return; 483 } 484 485 if (display & MSGTOTAL) 486 show_msgtotal(&msgsi->msginfo); 487 488 if (display & MSGINFO) { 489 show_msginfo_hdr(); 490 for (i = 0; i < msgsi->msginfo.msgmni; i++) { 491 struct msgid_ds_sysctl *msqptr = &msgsi->msgids[i]; 492 if (msqptr->msg_qbytes != 0) 493 show_msginfo(msqptr->msg_stime, 494 msqptr->msg_rtime, 495 msqptr->msg_ctime, 496 IXSEQ_TO_IPCID(i, msqptr->msg_perm), 497 msqptr->msg_perm._key, 498 msqptr->msg_perm.mode, 499 msqptr->msg_perm.uid, 500 msqptr->msg_perm.gid, 501 msqptr->msg_perm.cuid, 502 msqptr->msg_perm.cgid, 503 msqptr->_msg_cbytes, 504 msqptr->msg_qnum, 505 msqptr->msg_qbytes, 506 msqptr->msg_lspid, 507 msqptr->msg_lrpid); 508 } 509 printf("\n"); 510 } 511 } 512 513 void 514 shm_sysctl(void) 515 { 516 struct shm_sysctl_info *shmsi; 517 char *buf; 518 int mib[3]; 519 size_t len; 520 int i /*, valid */; 521 long valid; 522 523 mib[0] = CTL_KERN; 524 mib[1] = KERN_SYSVSHM; 525 len = sizeof(valid); 526 if (sysctl(mib, 2, &valid, &len, NULL, 0) < 0) { 527 perror("sysctl(KERN_SYSVSHM)"); 528 return; 529 } 530 if (!valid) { 531 fprintf(stderr, 532 "SVID shared memory facility not configured in the system\n"); 533 return; 534 } 535 536 mib[0] = CTL_KERN; 537 mib[1] = KERN_SYSVIPC_INFO; 538 mib[2] = KERN_SYSVIPC_SHM_INFO; 539 540 if (!(display & SHMINFO)) { 541 /* totals only */ 542 len = sizeof(struct shminfo); 543 } else { 544 if (sysctl(mib, 3, NULL, &len, NULL, 0) < 0) { 545 perror("sysctl(KERN_SYSVIPC_SHM_INFO)"); 546 return; 547 } 548 } 549 550 if ((buf = malloc(len)) == NULL) 551 err(1, "malloc"); 552 shmsi = (struct shm_sysctl_info *)buf; 553 if (sysctl(mib, 3, shmsi, &len, NULL, 0) < 0) { 554 perror("sysctl(KERN_SYSVIPC_SHM_INFO)"); 555 return; 556 } 557 558 if (display & SHMTOTAL) 559 show_shmtotal(&shmsi->shminfo); 560 561 if (display & SHMINFO) { 562 show_shminfo_hdr(); 563 for (i = 0; i < shmsi->shminfo.shmmni; i++) { 564 struct shmid_ds_sysctl *shmptr = &shmsi->shmids[i]; 565 if (shmptr->shm_perm.mode & 0x0800) 566 show_shminfo(shmptr->shm_atime, 567 shmptr->shm_dtime, 568 shmptr->shm_ctime, 569 IXSEQ_TO_IPCID(i, shmptr->shm_perm), 570 shmptr->shm_perm._key, 571 shmptr->shm_perm.mode, 572 shmptr->shm_perm.uid, 573 shmptr->shm_perm.gid, 574 shmptr->shm_perm.cuid, 575 shmptr->shm_perm.cgid, 576 shmptr->shm_nattch, 577 shmptr->shm_segsz, 578 shmptr->shm_cpid, 579 shmptr->shm_lpid); 580 } 581 printf("\n"); 582 } 583 } 584 585 void 586 sem_sysctl(void) 587 { 588 struct sem_sysctl_info *semsi; 589 char *buf; 590 int mib[3]; 591 size_t len; 592 int i, valid; 593 594 mib[0] = CTL_KERN; 595 mib[1] = KERN_SYSVSEM; 596 len = sizeof(valid); 597 if (sysctl(mib, 2, &valid, &len, NULL, 0) < 0) { 598 perror("sysctl(KERN_SYSVSEM)"); 599 return; 600 } 601 if (!valid) { 602 fprintf(stderr, 603 "SVID semaphores facility not configured in the system\n"); 604 return; 605 } 606 607 mib[0] = CTL_KERN; 608 mib[1] = KERN_SYSVIPC_INFO; 609 mib[2] = KERN_SYSVIPC_SEM_INFO; 610 611 if (!(display & SEMINFO)) { 612 /* totals only */ 613 len = sizeof(struct seminfo); 614 } else { 615 if (sysctl(mib, 3, NULL, &len, NULL, 0) < 0) { 616 perror("sysctl(KERN_SYSVIPC_SEM_INFO)"); 617 return; 618 } 619 } 620 621 if ((buf = malloc(len)) == NULL) 622 err(1, "malloc"); 623 semsi = (struct sem_sysctl_info *)buf; 624 if (sysctl(mib, 3, semsi, &len, NULL, 0) < 0) { 625 perror("sysctl(KERN_SYSVIPC_SEM_INFO)"); 626 return; 627 } 628 629 if (display & SEMTOTAL) 630 show_semtotal(&semsi->seminfo); 631 632 if (display & SEMINFO) { 633 show_seminfo_hdr(); 634 for (i = 0; i < semsi->seminfo.semmni; i++) { 635 struct semid_ds_sysctl *semaptr = &semsi->semids[i]; 636 if ((semaptr->sem_perm.mode & SEM_ALLOC) != 0) 637 show_seminfo(semaptr->sem_otime, 638 semaptr->sem_ctime, 639 IXSEQ_TO_IPCID(i, semaptr->sem_perm), 640 semaptr->sem_perm._key, 641 semaptr->sem_perm.mode, 642 semaptr->sem_perm.uid, 643 semaptr->sem_perm.gid, 644 semaptr->sem_perm.cuid, 645 semaptr->sem_perm.cgid, 646 semaptr->sem_nsems); 647 } 648 printf("\n"); 649 } 650 } 651 652 void 653 ipcs_kvm(void) 654 { 655 struct msginfo msginfo; 656 struct msqid_ds *msqids; 657 struct seminfo seminfo; 658 struct semid_ds *sema; 659 struct shminfo shminfo; 660 struct shmid_ds *shmsegs; 661 kvm_t *kd; 662 char errbuf[_POSIX2_LINE_MAX]; 663 int i; 664 struct nlist symbols[] = { 665 {"_sema"}, 666 #define X_SEMA 0 667 {"_seminfo"}, 668 #define X_SEMINFO 1 669 {"_semu"}, 670 #define X_SEMU 2 671 {"_msginfo"}, 672 #define X_MSGINFO 3 673 {"_msqids"}, 674 #define X_MSQIDS 4 675 {"_shminfo"}, 676 #define X_SHMINFO 5 677 {"_shmsegs"}, 678 #define X_SHMSEGS 6 679 {NULL} 680 }; 681 682 if ((kd = kvm_openfiles(namelist, core, NULL, O_RDONLY, 683 errbuf)) == NULL) 684 errx(1, "can't open kvm: %s", errbuf); 685 686 687 switch (kvm_nlist(kd, symbols)) { 688 case 0: 689 break; 690 case -1: 691 errx(1, "%s: unable to read symbol table.", 692 namelist == NULL ? _PATH_UNIX : namelist); 693 /* NOTREACHED */ 694 default: 695 #ifdef notdef /* they'll be told more civilly later */ 696 warnx("nlist failed"); 697 for (i = 0; symbols[i].n_name != NULL; i++) 698 if (symbols[i].n_value == 0) 699 warnx("symbol %s not found", 700 symbols[i].n_name); 701 #endif 702 break; 703 } 704 705 if ((display & (MSGINFO | MSGTOTAL)) && 706 (kvm_read(kd, symbols[X_MSGINFO].n_value, 707 &msginfo, sizeof(msginfo)) == sizeof(msginfo))) { 708 709 if (display & MSGTOTAL) 710 show_msgtotal(&msginfo); 711 712 if (display & MSGINFO) { 713 struct msqid_ds *xmsqids; 714 715 if (kvm_read(kd, symbols[X_MSQIDS].n_value, 716 &msqids, sizeof(msqids)) != sizeof(msqids)) 717 errx(1, "kvm_read (%s): %s", 718 symbols[X_MSQIDS].n_name, kvm_geterr(kd)); 719 720 xmsqids = malloc(sizeof(struct msqid_ds) * 721 msginfo.msgmni); 722 723 if (kvm_read(kd, (u_long)msqids, xmsqids, 724 sizeof(struct msqid_ds) * msginfo.msgmni) != 725 sizeof(struct msqid_ds) * msginfo.msgmni) 726 errx(1, "kvm_read (msqids): %s", 727 kvm_geterr(kd)); 728 729 show_msginfo_hdr(); 730 for (i = 0; i < msginfo.msgmni; i++) { 731 struct msqid_ds *msqptr = &xmsqids[i]; 732 if (msqptr->msg_qbytes != 0) 733 show_msginfo(msqptr->msg_stime, 734 msqptr->msg_rtime, 735 msqptr->msg_ctime, 736 IXSEQ_TO_IPCID(i, msqptr->msg_perm), 737 msqptr->msg_perm._key, 738 msqptr->msg_perm.mode, 739 msqptr->msg_perm.uid, 740 msqptr->msg_perm.gid, 741 msqptr->msg_perm.cuid, 742 msqptr->msg_perm.cgid, 743 msqptr->_msg_cbytes, 744 msqptr->msg_qnum, 745 msqptr->msg_qbytes, 746 msqptr->msg_lspid, 747 msqptr->msg_lrpid); 748 } 749 printf("\n"); 750 } 751 } else 752 if (display & (MSGINFO | MSGTOTAL)) { 753 fprintf(stderr, 754 "SVID messages facility not configured in the system\n"); 755 } 756 if ((display & (SHMINFO | SHMTOTAL)) && 757 (kvm_read(kd, symbols[X_SHMINFO].n_value, &shminfo, 758 sizeof(shminfo)) == sizeof(shminfo))) { 759 760 if (display & SHMTOTAL) 761 show_shmtotal(&shminfo); 762 763 if (display & SHMINFO) { 764 struct shmid_ds *xshmids; 765 766 if (kvm_read(kd, symbols[X_SHMSEGS].n_value, &shmsegs, 767 sizeof(shmsegs)) != sizeof(shmsegs)) 768 errx(1, "kvm_read (%s): %s", 769 symbols[X_SHMSEGS].n_name, kvm_geterr(kd)); 770 771 xshmids = malloc(sizeof(struct shmid_ds) * 772 shminfo.shmmni); 773 774 if (kvm_read(kd, (u_long)shmsegs, xshmids, 775 sizeof(struct shmid_ds) * shminfo.shmmni) != 776 sizeof(struct shmid_ds) * shminfo.shmmni) 777 errx(1, "kvm_read (shmsegs): %s", 778 kvm_geterr(kd)); 779 780 show_shminfo_hdr(); 781 for (i = 0; i < shminfo.shmmni; i++) { 782 struct shmid_ds *shmptr = &xshmids[i]; 783 if (shmptr->shm_perm.mode & 0x0800) 784 show_shminfo(shmptr->shm_atime, 785 shmptr->shm_dtime, 786 shmptr->shm_ctime, 787 IXSEQ_TO_IPCID(i, shmptr->shm_perm), 788 shmptr->shm_perm._key, 789 shmptr->shm_perm.mode, 790 shmptr->shm_perm.uid, 791 shmptr->shm_perm.gid, 792 shmptr->shm_perm.cuid, 793 shmptr->shm_perm.cgid, 794 shmptr->shm_nattch, 795 shmptr->shm_segsz, 796 shmptr->shm_cpid, 797 shmptr->shm_lpid); 798 } 799 printf("\n"); 800 } 801 } else 802 if (display & (SHMINFO | SHMTOTAL)) { 803 fprintf(stderr, 804 "SVID shared memory facility not configured in the system\n"); 805 } 806 if ((display & (SEMINFO | SEMTOTAL)) && 807 (kvm_read(kd, symbols[X_SEMINFO].n_value, &seminfo, 808 sizeof(seminfo)) == sizeof(seminfo))) { 809 struct semid_ds *xsema; 810 811 if (display & SEMTOTAL) 812 show_semtotal(&seminfo); 813 814 if (display & SEMINFO) { 815 if (kvm_read(kd, symbols[X_SEMA].n_value, &sema, 816 sizeof(sema)) != sizeof(sema)) 817 errx(1, "kvm_read (%s): %s", 818 symbols[X_SEMA].n_name, kvm_geterr(kd)); 819 820 xsema = malloc(sizeof(struct semid_ds) * 821 seminfo.semmni); 822 823 if (kvm_read(kd, (u_long)sema, xsema, 824 sizeof(struct semid_ds) * seminfo.semmni) != 825 sizeof(struct semid_ds) * seminfo.semmni) 826 errx(1, "kvm_read (sema): %s", 827 kvm_geterr(kd)); 828 829 show_seminfo_hdr(); 830 for (i = 0; i < seminfo.semmni; i++) { 831 struct semid_ds *semaptr = &xsema[i]; 832 if ((semaptr->sem_perm.mode & SEM_ALLOC) != 0) 833 show_seminfo(semaptr->sem_otime, 834 semaptr->sem_ctime, 835 IXSEQ_TO_IPCID(i, semaptr->sem_perm), 836 semaptr->sem_perm._key, 837 semaptr->sem_perm.mode, 838 semaptr->sem_perm.uid, 839 semaptr->sem_perm.gid, 840 semaptr->sem_perm.cuid, 841 semaptr->sem_perm.cgid, 842 semaptr->sem_nsems); 843 } 844 845 printf("\n"); 846 } 847 } else 848 if (display & (SEMINFO | SEMTOTAL)) { 849 fprintf(stderr, "SVID semaphores facility not configured in the system\n"); 850 } 851 kvm_close(kd); 852 } 853 854 void 855 usage(void) 856 { 857 858 fprintf(stderr, 859 "usage: %s [-abcmopqstMQST] [-C corefile] [-N namelist]\n", 860 getprogname()); 861 exit(1); 862 } 863
Indexes created Wed Oct 29 05:09:45 GMT 2025