Annotation of /tags/mkinitrd-6_1_12/busybox/util-linux/ipcs.c
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Sat Sep 1 22:45:15 2007 UTC (17 years ago) by niro
Original Path: trunk/mkinitrd-magellan/busybox/util-linux/ipcs.c
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File size: 16965 byte(s)
Sat Sep 1 22:45:15 2007 UTC (17 years ago) by niro
Original Path: trunk/mkinitrd-magellan/busybox/util-linux/ipcs.c
File MIME type: text/plain
File size: 16965 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
1 | niro | 532 | /* vi: set sw=4 ts=4: */ |
2 | /* | ||
3 | * ipcs.c -- provides information on allocated ipc resources. | ||
4 | * | ||
5 | * 01 Sept 2004 - Rodney Radford <rradford@mindspring.com> | ||
6 | * Adapted for busybox from util-linux-2.12a. | ||
7 | * | ||
8 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. | ||
9 | */ | ||
10 | |||
11 | #include "busybox.h" | ||
12 | #include <errno.h> | ||
13 | #include <time.h> | ||
14 | #include <pwd.h> | ||
15 | #include <grp.h> | ||
16 | |||
17 | /* X/OPEN tells us to use <sys/{types,ipc,sem}.h> for semctl() */ | ||
18 | /* X/OPEN tells us to use <sys/{types,ipc,msg}.h> for msgctl() */ | ||
19 | /* X/OPEN tells us to use <sys/{types,ipc,shm}.h> for shmctl() */ | ||
20 | #include <sys/types.h> | ||
21 | #include <sys/ipc.h> | ||
22 | #include <sys/sem.h> | ||
23 | #include <sys/msg.h> | ||
24 | #include <sys/shm.h> | ||
25 | |||
26 | |||
27 | |||
28 | /*-------------------------------------------------------------------*/ | ||
29 | /* SHM_DEST and SHM_LOCKED are defined in kernel headers, | ||
30 | but inside #ifdef __KERNEL__ ... #endif */ | ||
31 | #ifndef SHM_DEST | ||
32 | /* shm_mode upper byte flags */ | ||
33 | #define SHM_DEST 01000 /* segment will be destroyed on last detach */ | ||
34 | #define SHM_LOCKED 02000 /* segment will not be swapped */ | ||
35 | #endif | ||
36 | |||
37 | /* For older kernels the same holds for the defines below */ | ||
38 | #ifndef MSG_STAT | ||
39 | #define MSG_STAT 11 | ||
40 | #define MSG_INFO 12 | ||
41 | #endif | ||
42 | |||
43 | #ifndef SHM_STAT | ||
44 | #define SHM_STAT 13 | ||
45 | #define SHM_INFO 14 | ||
46 | struct shm_info { | ||
47 | int used_ids; | ||
48 | ulong shm_tot; /* total allocated shm */ | ||
49 | ulong shm_rss; /* total resident shm */ | ||
50 | ulong shm_swp; /* total swapped shm */ | ||
51 | ulong swap_attempts; | ||
52 | ulong swap_successes; | ||
53 | }; | ||
54 | #endif | ||
55 | |||
56 | #ifndef SEM_STAT | ||
57 | #define SEM_STAT 18 | ||
58 | #define SEM_INFO 19 | ||
59 | #endif | ||
60 | |||
61 | /* Some versions of libc only define IPC_INFO when __USE_GNU is defined. */ | ||
62 | #ifndef IPC_INFO | ||
63 | #define IPC_INFO 3 | ||
64 | #endif | ||
65 | /*-------------------------------------------------------------------*/ | ||
66 | |||
67 | /* The last arg of semctl is a union semun, but where is it defined? | ||
68 | X/OPEN tells us to define it ourselves, but until recently | ||
69 | Linux include files would also define it. */ | ||
70 | #if defined (__GNU_LIBRARY__) && !defined(_SEM_SEMUN_UNDEFINED) | ||
71 | /* union semun is defined by including <sys/sem.h> */ | ||
72 | #else | ||
73 | /* according to X/OPEN we have to define it ourselves */ | ||
74 | union semun { | ||
75 | int val; | ||
76 | struct semid_ds *buf; | ||
77 | unsigned short int *array; | ||
78 | struct seminfo *__buf; | ||
79 | }; | ||
80 | #endif | ||
81 | |||
82 | /* X/OPEN (Jan 1987) does not define fields key, seq in struct ipc_perm; | ||
83 | libc 4/5 does not mention struct ipc_term at all, but includes | ||
84 | <linux/ipc.h>, which defines a struct ipc_perm with such fields. | ||
85 | glibc-1.09 has no support for sysv ipc. | ||
86 | glibc 2 uses __key, __seq */ | ||
87 | #if defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1 | ||
88 | #define KEY __key | ||
89 | #else | ||
90 | #define KEY key | ||
91 | #endif | ||
92 | |||
93 | #define LIMITS 1 | ||
94 | #define STATUS 2 | ||
95 | #define CREATOR 3 | ||
96 | #define TIME 4 | ||
97 | #define PID 5 | ||
98 | |||
99 | static char format; | ||
100 | |||
101 | static void print_perms(int id, struct ipc_perm *ipcp) | ||
102 | { | ||
103 | struct passwd *pw; | ||
104 | struct group *gr; | ||
105 | |||
106 | printf("%-10d %-10o", id, ipcp->mode & 0777); | ||
107 | |||
108 | if ((pw = getpwuid(ipcp->cuid))) | ||
109 | printf(" %-10s", pw->pw_name); | ||
110 | else | ||
111 | printf(" %-10d", ipcp->cuid); | ||
112 | if ((gr = getgrgid(ipcp->cgid))) | ||
113 | printf(" %-10s", gr->gr_name); | ||
114 | else | ||
115 | printf(" %-10d", ipcp->cgid); | ||
116 | |||
117 | if ((pw = getpwuid(ipcp->uid))) | ||
118 | printf(" %-10s", pw->pw_name); | ||
119 | else | ||
120 | printf(" %-10d", ipcp->uid); | ||
121 | if ((gr = getgrgid(ipcp->gid))) | ||
122 | printf(" %-10s\n", gr->gr_name); | ||
123 | else | ||
124 | printf(" %-10d\n", ipcp->gid); | ||
125 | } | ||
126 | |||
127 | |||
128 | static void do_shm(void) | ||
129 | { | ||
130 | int maxid, shmid, id; | ||
131 | struct shmid_ds shmseg; | ||
132 | struct shm_info shm_info; | ||
133 | struct shminfo shminfo; | ||
134 | struct ipc_perm *ipcp = &shmseg.shm_perm; | ||
135 | struct passwd *pw; | ||
136 | |||
137 | maxid = shmctl(0, SHM_INFO, (struct shmid_ds *) (void *) &shm_info); | ||
138 | if (maxid < 0) { | ||
139 | printf("kernel not configured for %s\n", "shared memory"); | ||
140 | return; | ||
141 | } | ||
142 | |||
143 | switch (format) { | ||
144 | case LIMITS: | ||
145 | printf("------ Shared Memory %s --------\n", "Limits"); | ||
146 | if ((shmctl(0, IPC_INFO, (struct shmid_ds *) (void *) &shminfo)) < 0) | ||
147 | return; | ||
148 | /* glibc 2.1.3 and all earlier libc's have ints as fields | ||
149 | of struct shminfo; glibc 2.1.91 has unsigned long; ach */ | ||
150 | printf("max number of segments = %lu\n" | ||
151 | "max seg size (kbytes) = %lu\n" | ||
152 | "max total shared memory (pages) = %lu\n" | ||
153 | "min seg size (bytes) = %lu\n", | ||
154 | (unsigned long) shminfo.shmmni, | ||
155 | (unsigned long) (shminfo.shmmax >> 10), | ||
156 | (unsigned long) shminfo.shmall, | ||
157 | (unsigned long) shminfo.shmmin); | ||
158 | return; | ||
159 | |||
160 | case STATUS: | ||
161 | printf("------ Shared Memory %s --------\n", "Status"); | ||
162 | printf( "segments allocated %d\n" | ||
163 | "pages allocated %ld\n" | ||
164 | "pages resident %ld\n" | ||
165 | "pages swapped %ld\n" | ||
166 | "Swap performance: %ld attempts\t%ld successes\n", | ||
167 | shm_info.used_ids, | ||
168 | shm_info.shm_tot, | ||
169 | shm_info.shm_rss, | ||
170 | shm_info.shm_swp, | ||
171 | shm_info.swap_attempts, shm_info.swap_successes); | ||
172 | return; | ||
173 | |||
174 | case CREATOR: | ||
175 | printf("------ Shared Memory %s --------\n", "Segment Creators/Owners"); | ||
176 | printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n", | ||
177 | "shmid", "perms", "cuid", "cgid", "uid", "gid"); | ||
178 | break; | ||
179 | |||
180 | case TIME: | ||
181 | printf("------ Shared Memory %s --------\n", "Attach/Detach/Change Times"); | ||
182 | printf( "%-10s %-10s %-20s %-20s %-20s\n", | ||
183 | "shmid", "owner", "attached", "detached", "changed"); | ||
184 | break; | ||
185 | |||
186 | case PID: | ||
187 | printf("------ Shared Memory %s --------\n", "Creator/Last-op"); | ||
188 | printf( "%-10s %-10s %-10s %-10s\n", | ||
189 | "shmid", "owner", "cpid", "lpid"); | ||
190 | break; | ||
191 | |||
192 | default: | ||
193 | printf("------ Shared Memory %s --------\n", "Segments"); | ||
194 | printf( "%-10s %-10s %-10s %-10s %-10s %-10s %-12s\n", | ||
195 | "key", "shmid", "owner", "perms", "bytes", "nattch", | ||
196 | "status"); | ||
197 | break; | ||
198 | } | ||
199 | |||
200 | for (id = 0; id <= maxid; id++) { | ||
201 | shmid = shmctl(id, SHM_STAT, &shmseg); | ||
202 | if (shmid < 0) | ||
203 | continue; | ||
204 | if (format == CREATOR) { | ||
205 | print_perms(shmid, ipcp); | ||
206 | continue; | ||
207 | } | ||
208 | pw = getpwuid(ipcp->uid); | ||
209 | switch (format) { | ||
210 | case TIME: | ||
211 | if (pw) | ||
212 | printf("%-10d %-10.10s", shmid, pw->pw_name); | ||
213 | else | ||
214 | printf("%-10d %-10d", shmid, ipcp->uid); | ||
215 | /* ctime uses static buffer: use separate calls */ | ||
216 | printf(" %-20.16s", shmseg.shm_atime | ||
217 | ? ctime(&shmseg.shm_atime) + 4 : "Not set"); | ||
218 | printf(" %-20.16s", shmseg.shm_dtime | ||
219 | ? ctime(&shmseg.shm_dtime) + 4 : "Not set"); | ||
220 | printf(" %-20.16s\n", shmseg.shm_ctime | ||
221 | ? ctime(&shmseg.shm_ctime) + 4 : "Not set"); | ||
222 | break; | ||
223 | case PID: | ||
224 | if (pw) | ||
225 | printf("%-10d %-10.10s", shmid, pw->pw_name); | ||
226 | else | ||
227 | printf("%-10d %-10d", shmid, ipcp->uid); | ||
228 | printf(" %-10d %-10d\n", shmseg.shm_cpid, shmseg.shm_lpid); | ||
229 | break; | ||
230 | |||
231 | default: | ||
232 | printf("0x%08x ", ipcp->KEY); | ||
233 | if (pw) | ||
234 | printf("%-10d %-10.10s", shmid, pw->pw_name); | ||
235 | else | ||
236 | printf("%-10d %-10d", shmid, ipcp->uid); | ||
237 | printf(" %-10o %-10lu %-10ld %-6s %-6s\n", ipcp->mode & 0777, | ||
238 | /* | ||
239 | * earlier: int, Austin has size_t | ||
240 | */ | ||
241 | (unsigned long) shmseg.shm_segsz, | ||
242 | /* | ||
243 | * glibc-2.1.3 and earlier has unsigned short; | ||
244 | * Austin has shmatt_t | ||
245 | */ | ||
246 | (long) shmseg.shm_nattch, | ||
247 | ipcp->mode & SHM_DEST ? "dest" : " ", | ||
248 | ipcp->mode & SHM_LOCKED ? "locked" : " "); | ||
249 | break; | ||
250 | } | ||
251 | } | ||
252 | } | ||
253 | |||
254 | |||
255 | static void do_sem(void) | ||
256 | { | ||
257 | int maxid, semid, id; | ||
258 | struct semid_ds semary; | ||
259 | struct seminfo seminfo; | ||
260 | struct ipc_perm *ipcp = &semary.sem_perm; | ||
261 | struct passwd *pw; | ||
262 | union semun arg; | ||
263 | |||
264 | arg.array = (ushort *) (void *) &seminfo; | ||
265 | maxid = semctl(0, 0, SEM_INFO, arg); | ||
266 | if (maxid < 0) { | ||
267 | printf("kernel not configured for %s\n", "semaphores"); | ||
268 | return; | ||
269 | } | ||
270 | |||
271 | switch (format) { | ||
272 | case LIMITS: | ||
273 | printf("------ Semaphore %s --------\n", "Limits"); | ||
274 | arg.array = (ushort *) (void *) &seminfo; /* damn union */ | ||
275 | if ((semctl(0, 0, IPC_INFO, arg)) < 0) | ||
276 | return; | ||
277 | printf("max number of arrays = %d\n" | ||
278 | "max semaphores per array = %d\n" | ||
279 | "max semaphores system wide = %d\n" | ||
280 | "max ops per semop call = %d\n" | ||
281 | "semaphore max value = %d\n", | ||
282 | seminfo.semmni, | ||
283 | seminfo.semmsl, | ||
284 | seminfo.semmns, seminfo.semopm, seminfo.semvmx); | ||
285 | return; | ||
286 | |||
287 | case STATUS: | ||
288 | printf("------ Semaphore %s --------\n", "Status"); | ||
289 | printf( "used arrays = %d\n" | ||
290 | "allocated semaphores = %d\n", | ||
291 | seminfo.semusz, seminfo.semaem); | ||
292 | return; | ||
293 | |||
294 | case CREATOR: | ||
295 | printf("------ Semaphore %s --------\n", "Arrays Creators/Owners"); | ||
296 | printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n", | ||
297 | "semid", "perms", "cuid", "cgid", "uid", "gid"); | ||
298 | break; | ||
299 | |||
300 | case TIME: | ||
301 | printf("------ Shared Memory %s --------\n", "Operation/Change Times"); | ||
302 | printf( "%-8s %-10s %-26.24s %-26.24s\n", | ||
303 | "shmid", "owner", "last-op", "last-changed"); | ||
304 | break; | ||
305 | |||
306 | case PID: | ||
307 | break; | ||
308 | |||
309 | default: | ||
310 | printf("------ Semaphore %s --------\n", "Arrays"); | ||
311 | printf( "%-10s %-10s %-10s %-10s %-10s\n", | ||
312 | "key", "semid", "owner", "perms", "nsems"); | ||
313 | break; | ||
314 | } | ||
315 | |||
316 | for (id = 0; id <= maxid; id++) { | ||
317 | arg.buf = (struct semid_ds *) &semary; | ||
318 | semid = semctl(id, 0, SEM_STAT, arg); | ||
319 | if (semid < 0) | ||
320 | continue; | ||
321 | if (format == CREATOR) { | ||
322 | print_perms(semid, ipcp); | ||
323 | continue; | ||
324 | } | ||
325 | pw = getpwuid(ipcp->uid); | ||
326 | switch (format) { | ||
327 | case TIME: | ||
328 | if (pw) | ||
329 | printf("%-8d %-10.10s", semid, pw->pw_name); | ||
330 | else | ||
331 | printf("%-8d %-10d", semid, ipcp->uid); | ||
332 | /* ctime uses static buffer: use separate calls */ | ||
333 | printf(" %-26.24s", semary.sem_otime | ||
334 | ? ctime(&semary.sem_otime) : "Not set"); | ||
335 | printf(" %-26.24s\n", semary.sem_ctime | ||
336 | ? ctime(&semary.sem_ctime) : "Not set"); | ||
337 | break; | ||
338 | case PID: | ||
339 | break; | ||
340 | |||
341 | default: | ||
342 | printf("0x%08x ", ipcp->KEY); | ||
343 | if (pw) | ||
344 | printf("%-10d %-10.9s", semid, pw->pw_name); | ||
345 | else | ||
346 | printf("%-10d %-9d", semid, ipcp->uid); | ||
347 | printf(" %-10o %-10ld\n", ipcp->mode & 0777, | ||
348 | /* | ||
349 | * glibc-2.1.3 and earlier has unsigned short; | ||
350 | * glibc-2.1.91 has variation between | ||
351 | * unsigned short and unsigned long | ||
352 | * Austin prescribes unsigned short. | ||
353 | */ | ||
354 | (long) semary.sem_nsems); | ||
355 | break; | ||
356 | } | ||
357 | } | ||
358 | } | ||
359 | |||
360 | |||
361 | static void do_msg(void) | ||
362 | { | ||
363 | int maxid, msqid, id; | ||
364 | struct msqid_ds msgque; | ||
365 | struct msginfo msginfo; | ||
366 | struct ipc_perm *ipcp = &msgque.msg_perm; | ||
367 | struct passwd *pw; | ||
368 | |||
369 | maxid = msgctl(0, MSG_INFO, (struct msqid_ds *) (void *) &msginfo); | ||
370 | if (maxid < 0) { | ||
371 | printf("kernel not configured for %s\n", "message queues"); | ||
372 | return; | ||
373 | } | ||
374 | |||
375 | switch (format) { | ||
376 | case LIMITS: | ||
377 | if ((msgctl(0, IPC_INFO, (struct msqid_ds *) (void *) &msginfo)) < 0) | ||
378 | return; | ||
379 | printf("------ Message%s --------\n", "s: Limits"); | ||
380 | printf( "max queues system wide = %d\n" | ||
381 | "max size of message (bytes) = %d\n" | ||
382 | "default max size of queue (bytes) = %d\n", | ||
383 | msginfo.msgmni, msginfo.msgmax, msginfo.msgmnb); | ||
384 | return; | ||
385 | |||
386 | case STATUS: | ||
387 | printf("------ Message%s --------\n", "s: Status"); | ||
388 | printf( "allocated queues = %d\n" | ||
389 | "used headers = %d\n" | ||
390 | "used space = %d bytes\n", | ||
391 | msginfo.msgpool, msginfo.msgmap, msginfo.msgtql); | ||
392 | return; | ||
393 | |||
394 | case CREATOR: | ||
395 | printf("------ Message%s --------\n", " Queues: Creators/Owners"); | ||
396 | printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n", | ||
397 | "msqid", "perms", "cuid", "cgid", "uid", "gid"); | ||
398 | break; | ||
399 | |||
400 | case TIME: | ||
401 | printf("------ Message%s --------\n", " Queues Send/Recv/Change Times"); | ||
402 | printf( "%-8s %-10s %-20s %-20s %-20s\n", | ||
403 | "msqid", "owner", "send", "recv", "change"); | ||
404 | break; | ||
405 | |||
406 | case PID: | ||
407 | printf("------ Message%s --------\n", " Queues PIDs"); | ||
408 | printf( "%-10s %-10s %-10s %-10s\n", | ||
409 | "msqid", "owner", "lspid", "lrpid"); | ||
410 | break; | ||
411 | |||
412 | default: | ||
413 | printf("------ Message%s --------\n", " Queues"); | ||
414 | printf( "%-10s %-10s %-10s %-10s %-12s %-12s\n", | ||
415 | "key", "msqid", "owner", "perms", "used-bytes", "messages"); | ||
416 | break; | ||
417 | } | ||
418 | |||
419 | for (id = 0; id <= maxid; id++) { | ||
420 | msqid = msgctl(id, MSG_STAT, &msgque); | ||
421 | if (msqid < 0) | ||
422 | continue; | ||
423 | if (format == CREATOR) { | ||
424 | print_perms(msqid, ipcp); | ||
425 | continue; | ||
426 | } | ||
427 | pw = getpwuid(ipcp->uid); | ||
428 | switch (format) { | ||
429 | case TIME: | ||
430 | if (pw) | ||
431 | printf("%-8d %-10.10s", msqid, pw->pw_name); | ||
432 | else | ||
433 | printf("%-8d %-10d", msqid, ipcp->uid); | ||
434 | printf(" %-20.16s", msgque.msg_stime | ||
435 | ? ctime(&msgque.msg_stime) + 4 : "Not set"); | ||
436 | printf(" %-20.16s", msgque.msg_rtime | ||
437 | ? ctime(&msgque.msg_rtime) + 4 : "Not set"); | ||
438 | printf(" %-20.16s\n", msgque.msg_ctime | ||
439 | ? ctime(&msgque.msg_ctime) + 4 : "Not set"); | ||
440 | break; | ||
441 | case PID: | ||
442 | if (pw) | ||
443 | printf("%-8d %-10.10s", msqid, pw->pw_name); | ||
444 | else | ||
445 | printf("%-8d %-10d", msqid, ipcp->uid); | ||
446 | printf(" %5d %5d\n", msgque.msg_lspid, msgque.msg_lrpid); | ||
447 | break; | ||
448 | |||
449 | default: | ||
450 | printf("0x%08x ", ipcp->KEY); | ||
451 | if (pw) | ||
452 | printf("%-10d %-10.10s", msqid, pw->pw_name); | ||
453 | else | ||
454 | printf("%-10d %-10d", msqid, ipcp->uid); | ||
455 | printf(" %-10o %-12ld %-12ld\n", ipcp->mode & 0777, | ||
456 | /* | ||
457 | * glibc-2.1.3 and earlier has unsigned short; | ||
458 | * glibc-2.1.91 has variation between | ||
459 | * unsigned short, unsigned long | ||
460 | * Austin has msgqnum_t | ||
461 | */ | ||
462 | (long) msgque.msg_cbytes, (long) msgque.msg_qnum); | ||
463 | break; | ||
464 | } | ||
465 | } | ||
466 | } | ||
467 | |||
468 | |||
469 | static void print_shm(int shmid) | ||
470 | { | ||
471 | struct shmid_ds shmds; | ||
472 | struct ipc_perm *ipcp = &shmds.shm_perm; | ||
473 | |||
474 | if (shmctl(shmid, IPC_STAT, &shmds) == -1) { | ||
475 | bb_perror_msg("shmctl"); | ||
476 | return; | ||
477 | } | ||
478 | |||
479 | printf("\nShared memory Segment shmid=%d\n" | ||
480 | "uid=%d\tgid=%d\tcuid=%d\tcgid=%d\n" | ||
481 | "mode=%#o\taccess_perms=%#o\n" | ||
482 | "bytes=%ld\tlpid=%d\tcpid=%d\tnattch=%ld\n", | ||
483 | shmid, | ||
484 | ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, | ||
485 | ipcp->mode, ipcp->mode & 0777, | ||
486 | (long) shmds.shm_segsz, shmds.shm_lpid, shmds.shm_cpid, | ||
487 | (long) shmds.shm_nattch); | ||
488 | printf("att_time=%-26.24s\n", | ||
489 | shmds.shm_atime ? ctime(&shmds.shm_atime) : "Not set"); | ||
490 | printf("det_time=%-26.24s\n", | ||
491 | shmds.shm_dtime ? ctime(&shmds.shm_dtime) : "Not set"); | ||
492 | printf("change_time=%-26.24s\n\n", ctime(&shmds.shm_ctime)); | ||
493 | } | ||
494 | |||
495 | |||
496 | static void print_msg(int msqid) | ||
497 | { | ||
498 | struct msqid_ds buf; | ||
499 | struct ipc_perm *ipcp = &buf.msg_perm; | ||
500 | |||
501 | if (msgctl(msqid, IPC_STAT, &buf) == -1) { | ||
502 | bb_perror_msg("msgctl"); | ||
503 | return; | ||
504 | } | ||
505 | |||
506 | printf("\nMessage Queue msqid=%d\n" | ||
507 | "uid=%d\tgid=%d\tcuid=%d\tcgid=%d\tmode=%#o\n" | ||
508 | "cbytes=%ld\tqbytes=%ld\tqnum=%ld\tlspid=%d\tlrpid=%d\n", | ||
509 | msqid, ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, ipcp->mode, | ||
510 | /* | ||
511 | * glibc-2.1.3 and earlier has unsigned short; | ||
512 | * glibc-2.1.91 has variation between | ||
513 | * unsigned short, unsigned long | ||
514 | * Austin has msgqnum_t (for msg_qbytes) | ||
515 | */ | ||
516 | (long) buf.msg_cbytes, (long) buf.msg_qbytes, | ||
517 | (long) buf.msg_qnum, buf.msg_lspid, buf.msg_lrpid); | ||
518 | |||
519 | printf("send_time=%-26.24s\n", | ||
520 | buf.msg_stime ? ctime(&buf.msg_stime) : "Not set"); | ||
521 | printf("rcv_time=%-26.24s\n", | ||
522 | buf.msg_rtime ? ctime(&buf.msg_rtime) : "Not set"); | ||
523 | printf("change_time=%-26.24s\n\n", | ||
524 | buf.msg_ctime ? ctime(&buf.msg_ctime) : "Not set"); | ||
525 | } | ||
526 | |||
527 | static void print_sem(int semid) | ||
528 | { | ||
529 | struct semid_ds semds; | ||
530 | struct ipc_perm *ipcp = &semds.sem_perm; | ||
531 | union semun arg; | ||
532 | unsigned int i; | ||
533 | |||
534 | arg.buf = &semds; | ||
535 | if (semctl(semid, 0, IPC_STAT, arg)) { | ||
536 | bb_perror_msg("semctl"); | ||
537 | return; | ||
538 | } | ||
539 | |||
540 | printf("\nSemaphore Array semid=%d\n" | ||
541 | "uid=%d\t gid=%d\t cuid=%d\t cgid=%d\n" | ||
542 | "mode=%#o, access_perms=%#o\n" | ||
543 | "nsems = %ld\n" | ||
544 | "otime = %-26.24s\n", | ||
545 | semid, | ||
546 | ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, | ||
547 | ipcp->mode, ipcp->mode & 0777, | ||
548 | (long) semds.sem_nsems, | ||
549 | semds.sem_otime ? ctime(&semds.sem_otime) : "Not set"); | ||
550 | printf("ctime = %-26.24s\n" | ||
551 | "%-10s %-10s %-10s %-10s %-10s\n", | ||
552 | ctime(&semds.sem_ctime), | ||
553 | "semnum", "value", "ncount", "zcount", "pid"); | ||
554 | |||
555 | arg.val = 0; | ||
556 | for (i = 0; i < semds.sem_nsems; i++) { | ||
557 | int val, ncnt, zcnt, pid; | ||
558 | |||
559 | val = semctl(semid, i, GETVAL, arg); | ||
560 | ncnt = semctl(semid, i, GETNCNT, arg); | ||
561 | zcnt = semctl(semid, i, GETZCNT, arg); | ||
562 | pid = semctl(semid, i, GETPID, arg); | ||
563 | if (val < 0 || ncnt < 0 || zcnt < 0 || pid < 0) { | ||
564 | bb_perror_msg_and_die("semctl"); | ||
565 | } | ||
566 | printf("%-10d %-10d %-10d %-10d %-10d\n", i, val, ncnt, zcnt, pid); | ||
567 | } | ||
568 | puts(""); | ||
569 | } | ||
570 | |||
571 | int ipcs_main(int argc, char **argv) | ||
572 | { | ||
573 | int id = 0; | ||
574 | unsigned flags = 0; | ||
575 | unsigned opt; | ||
576 | char *opt_i; | ||
577 | #define flag_print (1<<0) | ||
578 | #define flag_msg (1<<1) | ||
579 | #define flag_sem (1<<2) | ||
580 | #define flag_shm (1<<3) | ||
581 | |||
582 | opt = getopt32(argc, argv, "i:aqsmtcplu", &opt_i); | ||
583 | if (opt & 0x1) { // -i | ||
584 | id = xatoi(opt_i); | ||
585 | flags |= flag_print; | ||
586 | } | ||
587 | if (opt & 0x2) flags |= flag_msg | flag_sem | flag_shm; // -a | ||
588 | if (opt & 0x4) flags |= flag_msg; // -q | ||
589 | if (opt & 0x8) flags |= flag_sem; // -s | ||
590 | if (opt & 0x10) flags |= flag_shm; // -m | ||
591 | if (opt & 0x20) format = TIME; // -t | ||
592 | if (opt & 0x40) format = CREATOR; // -c | ||
593 | if (opt & 0x80) format = PID; // -p | ||
594 | if (opt & 0x100) format = LIMITS; // -l | ||
595 | if (opt & 0x200) format = STATUS; // -u | ||
596 | |||
597 | if (flags & flag_print) { | ||
598 | if (flags & flag_shm) { | ||
599 | print_shm(id); | ||
600 | fflush_stdout_and_exit(0); | ||
601 | } | ||
602 | if (flags & flag_sem) { | ||
603 | print_sem(id); | ||
604 | fflush_stdout_and_exit(0); | ||
605 | } | ||
606 | if (flags & flag_msg) { | ||
607 | print_msg(id); | ||
608 | fflush_stdout_and_exit(0); | ||
609 | } | ||
610 | bb_show_usage(); | ||
611 | } | ||
612 | |||
613 | if (!(flags & (flag_shm | flag_msg | flag_sem))) | ||
614 | flags |= flag_msg | flag_shm | flag_sem; | ||
615 | puts(""); | ||
616 | |||
617 | if (flags & flag_shm) { | ||
618 | do_shm(); | ||
619 | puts(""); | ||
620 | } | ||
621 | if (flags & flag_sem) { | ||
622 | do_sem(); | ||
623 | puts(""); | ||
624 | } | ||
625 | if (flags & flag_msg) { | ||
626 | do_msg(); | ||
627 | puts(""); | ||
628 | } | ||
629 | fflush_stdout_and_exit(0); | ||
630 | } |