Annotation of /tags/mkinitrd-6_1_12/busybox/util-linux/ipcs.c
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Tue Nov 17 21:24:51 2009 UTC (14 years, 10 months ago) by niro
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File size: 17033 byte(s)
Tue Nov 17 21:24:51 2009 UTC (14 years, 10 months ago) by niro
File MIME type: text/plain
File size: 17033 byte(s)
tagged 'mkinitrd-6_1_12'
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 | /* X/OPEN tells us to use <sys/{types,ipc,sem}.h> for semctl() */ | ||
12 | /* X/OPEN tells us to use <sys/{types,ipc,msg}.h> for msgctl() */ | ||
13 | /* X/OPEN tells us to use <sys/{types,ipc,shm}.h> for shmctl() */ | ||
14 | #include <sys/types.h> | ||
15 | #include <sys/ipc.h> | ||
16 | #include <sys/sem.h> | ||
17 | #include <sys/msg.h> | ||
18 | #include <sys/shm.h> | ||
19 | |||
20 | niro | 816 | #include "libbb.h" |
21 | niro | 532 | |
22 | /*-------------------------------------------------------------------*/ | ||
23 | /* SHM_DEST and SHM_LOCKED are defined in kernel headers, | ||
24 | but inside #ifdef __KERNEL__ ... #endif */ | ||
25 | #ifndef SHM_DEST | ||
26 | /* shm_mode upper byte flags */ | ||
27 | #define SHM_DEST 01000 /* segment will be destroyed on last detach */ | ||
28 | #define SHM_LOCKED 02000 /* segment will not be swapped */ | ||
29 | #endif | ||
30 | |||
31 | /* For older kernels the same holds for the defines below */ | ||
32 | #ifndef MSG_STAT | ||
33 | #define MSG_STAT 11 | ||
34 | #define MSG_INFO 12 | ||
35 | #endif | ||
36 | |||
37 | #ifndef SHM_STAT | ||
38 | #define SHM_STAT 13 | ||
39 | #define SHM_INFO 14 | ||
40 | struct shm_info { | ||
41 | int used_ids; | ||
42 | ulong shm_tot; /* total allocated shm */ | ||
43 | ulong shm_rss; /* total resident shm */ | ||
44 | ulong shm_swp; /* total swapped shm */ | ||
45 | ulong swap_attempts; | ||
46 | ulong swap_successes; | ||
47 | }; | ||
48 | #endif | ||
49 | |||
50 | #ifndef SEM_STAT | ||
51 | #define SEM_STAT 18 | ||
52 | #define SEM_INFO 19 | ||
53 | #endif | ||
54 | |||
55 | /* Some versions of libc only define IPC_INFO when __USE_GNU is defined. */ | ||
56 | #ifndef IPC_INFO | ||
57 | #define IPC_INFO 3 | ||
58 | #endif | ||
59 | /*-------------------------------------------------------------------*/ | ||
60 | |||
61 | /* The last arg of semctl is a union semun, but where is it defined? | ||
62 | X/OPEN tells us to define it ourselves, but until recently | ||
63 | Linux include files would also define it. */ | ||
64 | niro | 816 | #if defined(__GNU_LIBRARY__) && !defined(_SEM_SEMUN_UNDEFINED) |
65 | niro | 532 | /* union semun is defined by including <sys/sem.h> */ |
66 | #else | ||
67 | /* according to X/OPEN we have to define it ourselves */ | ||
68 | union semun { | ||
69 | int val; | ||
70 | struct semid_ds *buf; | ||
71 | niro | 816 | unsigned short *array; |
72 | niro | 532 | struct seminfo *__buf; |
73 | }; | ||
74 | #endif | ||
75 | |||
76 | /* X/OPEN (Jan 1987) does not define fields key, seq in struct ipc_perm; | ||
77 | libc 4/5 does not mention struct ipc_term at all, but includes | ||
78 | <linux/ipc.h>, which defines a struct ipc_perm with such fields. | ||
79 | glibc-1.09 has no support for sysv ipc. | ||
80 | glibc 2 uses __key, __seq */ | ||
81 | niro | 816 | #if defined(__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1 |
82 | niro | 532 | #define KEY __key |
83 | #else | ||
84 | #define KEY key | ||
85 | #endif | ||
86 | |||
87 | #define LIMITS 1 | ||
88 | #define STATUS 2 | ||
89 | #define CREATOR 3 | ||
90 | #define TIME 4 | ||
91 | #define PID 5 | ||
92 | |||
93 | static char format; | ||
94 | |||
95 | static void print_perms(int id, struct ipc_perm *ipcp) | ||
96 | { | ||
97 | struct passwd *pw; | ||
98 | struct group *gr; | ||
99 | |||
100 | printf("%-10d %-10o", id, ipcp->mode & 0777); | ||
101 | |||
102 | niro | 816 | pw = getpwuid(ipcp->cuid); |
103 | if (pw) printf(" %-10s", pw->pw_name); | ||
104 | else printf(" %-10d", ipcp->cuid); | ||
105 | gr = getgrgid(ipcp->cgid); | ||
106 | if (gr) printf(" %-10s", gr->gr_name); | ||
107 | else printf(" %-10d", ipcp->cgid); | ||
108 | niro | 532 | |
109 | niro | 816 | pw = getpwuid(ipcp->uid); |
110 | if (pw) printf(" %-10s", pw->pw_name); | ||
111 | else printf(" %-10d", ipcp->uid); | ||
112 | gr = getgrgid(ipcp->gid); | ||
113 | if (gr) printf(" %-10s\n", gr->gr_name); | ||
114 | else printf(" %-10d\n", ipcp->gid); | ||
115 | niro | 532 | } |
116 | |||
117 | |||
118 | static void do_shm(void) | ||
119 | { | ||
120 | int maxid, shmid, id; | ||
121 | struct shmid_ds shmseg; | ||
122 | struct shm_info shm_info; | ||
123 | struct shminfo shminfo; | ||
124 | struct ipc_perm *ipcp = &shmseg.shm_perm; | ||
125 | struct passwd *pw; | ||
126 | |||
127 | maxid = shmctl(0, SHM_INFO, (struct shmid_ds *) (void *) &shm_info); | ||
128 | if (maxid < 0) { | ||
129 | printf("kernel not configured for %s\n", "shared memory"); | ||
130 | return; | ||
131 | } | ||
132 | |||
133 | switch (format) { | ||
134 | case LIMITS: | ||
135 | printf("------ Shared Memory %s --------\n", "Limits"); | ||
136 | if ((shmctl(0, IPC_INFO, (struct shmid_ds *) (void *) &shminfo)) < 0) | ||
137 | return; | ||
138 | /* glibc 2.1.3 and all earlier libc's have ints as fields | ||
139 | of struct shminfo; glibc 2.1.91 has unsigned long; ach */ | ||
140 | printf("max number of segments = %lu\n" | ||
141 | "max seg size (kbytes) = %lu\n" | ||
142 | "max total shared memory (pages) = %lu\n" | ||
143 | "min seg size (bytes) = %lu\n", | ||
144 | (unsigned long) shminfo.shmmni, | ||
145 | (unsigned long) (shminfo.shmmax >> 10), | ||
146 | (unsigned long) shminfo.shmall, | ||
147 | (unsigned long) shminfo.shmmin); | ||
148 | return; | ||
149 | |||
150 | case STATUS: | ||
151 | printf("------ Shared Memory %s --------\n", "Status"); | ||
152 | printf( "segments allocated %d\n" | ||
153 | "pages allocated %ld\n" | ||
154 | "pages resident %ld\n" | ||
155 | "pages swapped %ld\n" | ||
156 | "Swap performance: %ld attempts\t%ld successes\n", | ||
157 | shm_info.used_ids, | ||
158 | shm_info.shm_tot, | ||
159 | shm_info.shm_rss, | ||
160 | shm_info.shm_swp, | ||
161 | shm_info.swap_attempts, shm_info.swap_successes); | ||
162 | return; | ||
163 | |||
164 | case CREATOR: | ||
165 | printf("------ Shared Memory %s --------\n", "Segment Creators/Owners"); | ||
166 | printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n", | ||
167 | "shmid", "perms", "cuid", "cgid", "uid", "gid"); | ||
168 | break; | ||
169 | |||
170 | case TIME: | ||
171 | printf("------ Shared Memory %s --------\n", "Attach/Detach/Change Times"); | ||
172 | printf( "%-10s %-10s %-20s %-20s %-20s\n", | ||
173 | "shmid", "owner", "attached", "detached", "changed"); | ||
174 | break; | ||
175 | |||
176 | case PID: | ||
177 | printf("------ Shared Memory %s --------\n", "Creator/Last-op"); | ||
178 | printf( "%-10s %-10s %-10s %-10s\n", | ||
179 | "shmid", "owner", "cpid", "lpid"); | ||
180 | break; | ||
181 | |||
182 | default: | ||
183 | printf("------ Shared Memory %s --------\n", "Segments"); | ||
184 | printf( "%-10s %-10s %-10s %-10s %-10s %-10s %-12s\n", | ||
185 | "key", "shmid", "owner", "perms", "bytes", "nattch", | ||
186 | "status"); | ||
187 | break; | ||
188 | } | ||
189 | |||
190 | for (id = 0; id <= maxid; id++) { | ||
191 | shmid = shmctl(id, SHM_STAT, &shmseg); | ||
192 | if (shmid < 0) | ||
193 | continue; | ||
194 | if (format == CREATOR) { | ||
195 | print_perms(shmid, ipcp); | ||
196 | continue; | ||
197 | } | ||
198 | pw = getpwuid(ipcp->uid); | ||
199 | switch (format) { | ||
200 | case TIME: | ||
201 | if (pw) | ||
202 | printf("%-10d %-10.10s", shmid, pw->pw_name); | ||
203 | else | ||
204 | printf("%-10d %-10d", shmid, ipcp->uid); | ||
205 | /* ctime uses static buffer: use separate calls */ | ||
206 | printf(" %-20.16s", shmseg.shm_atime | ||
207 | ? ctime(&shmseg.shm_atime) + 4 : "Not set"); | ||
208 | printf(" %-20.16s", shmseg.shm_dtime | ||
209 | ? ctime(&shmseg.shm_dtime) + 4 : "Not set"); | ||
210 | printf(" %-20.16s\n", shmseg.shm_ctime | ||
211 | ? ctime(&shmseg.shm_ctime) + 4 : "Not set"); | ||
212 | break; | ||
213 | case PID: | ||
214 | if (pw) | ||
215 | printf("%-10d %-10.10s", shmid, pw->pw_name); | ||
216 | else | ||
217 | printf("%-10d %-10d", shmid, ipcp->uid); | ||
218 | printf(" %-10d %-10d\n", shmseg.shm_cpid, shmseg.shm_lpid); | ||
219 | break; | ||
220 | |||
221 | default: | ||
222 | printf("0x%08x ", ipcp->KEY); | ||
223 | if (pw) | ||
224 | printf("%-10d %-10.10s", shmid, pw->pw_name); | ||
225 | else | ||
226 | printf("%-10d %-10d", shmid, ipcp->uid); | ||
227 | printf(" %-10o %-10lu %-10ld %-6s %-6s\n", ipcp->mode & 0777, | ||
228 | /* | ||
229 | * earlier: int, Austin has size_t | ||
230 | */ | ||
231 | (unsigned long) shmseg.shm_segsz, | ||
232 | /* | ||
233 | * glibc-2.1.3 and earlier has unsigned short; | ||
234 | * Austin has shmatt_t | ||
235 | */ | ||
236 | (long) shmseg.shm_nattch, | ||
237 | ipcp->mode & SHM_DEST ? "dest" : " ", | ||
238 | ipcp->mode & SHM_LOCKED ? "locked" : " "); | ||
239 | break; | ||
240 | } | ||
241 | } | ||
242 | } | ||
243 | |||
244 | |||
245 | static void do_sem(void) | ||
246 | { | ||
247 | int maxid, semid, id; | ||
248 | struct semid_ds semary; | ||
249 | struct seminfo seminfo; | ||
250 | struct ipc_perm *ipcp = &semary.sem_perm; | ||
251 | struct passwd *pw; | ||
252 | union semun arg; | ||
253 | |||
254 | arg.array = (ushort *) (void *) &seminfo; | ||
255 | maxid = semctl(0, 0, SEM_INFO, arg); | ||
256 | if (maxid < 0) { | ||
257 | printf("kernel not configured for %s\n", "semaphores"); | ||
258 | return; | ||
259 | } | ||
260 | |||
261 | switch (format) { | ||
262 | case LIMITS: | ||
263 | printf("------ Semaphore %s --------\n", "Limits"); | ||
264 | arg.array = (ushort *) (void *) &seminfo; /* damn union */ | ||
265 | if ((semctl(0, 0, IPC_INFO, arg)) < 0) | ||
266 | return; | ||
267 | printf("max number of arrays = %d\n" | ||
268 | "max semaphores per array = %d\n" | ||
269 | "max semaphores system wide = %d\n" | ||
270 | "max ops per semop call = %d\n" | ||
271 | "semaphore max value = %d\n", | ||
272 | seminfo.semmni, | ||
273 | seminfo.semmsl, | ||
274 | seminfo.semmns, seminfo.semopm, seminfo.semvmx); | ||
275 | return; | ||
276 | |||
277 | case STATUS: | ||
278 | printf("------ Semaphore %s --------\n", "Status"); | ||
279 | printf( "used arrays = %d\n" | ||
280 | "allocated semaphores = %d\n", | ||
281 | seminfo.semusz, seminfo.semaem); | ||
282 | return; | ||
283 | |||
284 | case CREATOR: | ||
285 | printf("------ Semaphore %s --------\n", "Arrays Creators/Owners"); | ||
286 | printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n", | ||
287 | "semid", "perms", "cuid", "cgid", "uid", "gid"); | ||
288 | break; | ||
289 | |||
290 | case TIME: | ||
291 | printf("------ Shared Memory %s --------\n", "Operation/Change Times"); | ||
292 | printf( "%-8s %-10s %-26.24s %-26.24s\n", | ||
293 | "shmid", "owner", "last-op", "last-changed"); | ||
294 | break; | ||
295 | |||
296 | case PID: | ||
297 | break; | ||
298 | |||
299 | default: | ||
300 | printf("------ Semaphore %s --------\n", "Arrays"); | ||
301 | printf( "%-10s %-10s %-10s %-10s %-10s\n", | ||
302 | "key", "semid", "owner", "perms", "nsems"); | ||
303 | break; | ||
304 | } | ||
305 | |||
306 | for (id = 0; id <= maxid; id++) { | ||
307 | arg.buf = (struct semid_ds *) &semary; | ||
308 | semid = semctl(id, 0, SEM_STAT, arg); | ||
309 | if (semid < 0) | ||
310 | continue; | ||
311 | if (format == CREATOR) { | ||
312 | print_perms(semid, ipcp); | ||
313 | continue; | ||
314 | } | ||
315 | pw = getpwuid(ipcp->uid); | ||
316 | switch (format) { | ||
317 | case TIME: | ||
318 | if (pw) | ||
319 | printf("%-8d %-10.10s", semid, pw->pw_name); | ||
320 | else | ||
321 | printf("%-8d %-10d", semid, ipcp->uid); | ||
322 | /* ctime uses static buffer: use separate calls */ | ||
323 | printf(" %-26.24s", semary.sem_otime | ||
324 | ? ctime(&semary.sem_otime) : "Not set"); | ||
325 | printf(" %-26.24s\n", semary.sem_ctime | ||
326 | ? ctime(&semary.sem_ctime) : "Not set"); | ||
327 | break; | ||
328 | case PID: | ||
329 | break; | ||
330 | |||
331 | default: | ||
332 | printf("0x%08x ", ipcp->KEY); | ||
333 | if (pw) | ||
334 | printf("%-10d %-10.9s", semid, pw->pw_name); | ||
335 | else | ||
336 | printf("%-10d %-9d", semid, ipcp->uid); | ||
337 | printf(" %-10o %-10ld\n", ipcp->mode & 0777, | ||
338 | /* | ||
339 | * glibc-2.1.3 and earlier has unsigned short; | ||
340 | * glibc-2.1.91 has variation between | ||
341 | * unsigned short and unsigned long | ||
342 | * Austin prescribes unsigned short. | ||
343 | */ | ||
344 | (long) semary.sem_nsems); | ||
345 | break; | ||
346 | } | ||
347 | } | ||
348 | } | ||
349 | |||
350 | |||
351 | static void do_msg(void) | ||
352 | { | ||
353 | int maxid, msqid, id; | ||
354 | struct msqid_ds msgque; | ||
355 | struct msginfo msginfo; | ||
356 | struct ipc_perm *ipcp = &msgque.msg_perm; | ||
357 | struct passwd *pw; | ||
358 | |||
359 | maxid = msgctl(0, MSG_INFO, (struct msqid_ds *) (void *) &msginfo); | ||
360 | if (maxid < 0) { | ||
361 | printf("kernel not configured for %s\n", "message queues"); | ||
362 | return; | ||
363 | } | ||
364 | |||
365 | switch (format) { | ||
366 | case LIMITS: | ||
367 | if ((msgctl(0, IPC_INFO, (struct msqid_ds *) (void *) &msginfo)) < 0) | ||
368 | return; | ||
369 | printf("------ Message%s --------\n", "s: Limits"); | ||
370 | printf( "max queues system wide = %d\n" | ||
371 | "max size of message (bytes) = %d\n" | ||
372 | "default max size of queue (bytes) = %d\n", | ||
373 | msginfo.msgmni, msginfo.msgmax, msginfo.msgmnb); | ||
374 | return; | ||
375 | |||
376 | case STATUS: | ||
377 | printf("------ Message%s --------\n", "s: Status"); | ||
378 | printf( "allocated queues = %d\n" | ||
379 | "used headers = %d\n" | ||
380 | "used space = %d bytes\n", | ||
381 | msginfo.msgpool, msginfo.msgmap, msginfo.msgtql); | ||
382 | return; | ||
383 | |||
384 | case CREATOR: | ||
385 | printf("------ Message%s --------\n", " Queues: Creators/Owners"); | ||
386 | printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n", | ||
387 | "msqid", "perms", "cuid", "cgid", "uid", "gid"); | ||
388 | break; | ||
389 | |||
390 | case TIME: | ||
391 | printf("------ Message%s --------\n", " Queues Send/Recv/Change Times"); | ||
392 | printf( "%-8s %-10s %-20s %-20s %-20s\n", | ||
393 | "msqid", "owner", "send", "recv", "change"); | ||
394 | break; | ||
395 | |||
396 | case PID: | ||
397 | printf("------ Message%s --------\n", " Queues PIDs"); | ||
398 | printf( "%-10s %-10s %-10s %-10s\n", | ||
399 | "msqid", "owner", "lspid", "lrpid"); | ||
400 | break; | ||
401 | |||
402 | default: | ||
403 | printf("------ Message%s --------\n", " Queues"); | ||
404 | printf( "%-10s %-10s %-10s %-10s %-12s %-12s\n", | ||
405 | "key", "msqid", "owner", "perms", "used-bytes", "messages"); | ||
406 | break; | ||
407 | } | ||
408 | |||
409 | for (id = 0; id <= maxid; id++) { | ||
410 | msqid = msgctl(id, MSG_STAT, &msgque); | ||
411 | if (msqid < 0) | ||
412 | continue; | ||
413 | if (format == CREATOR) { | ||
414 | print_perms(msqid, ipcp); | ||
415 | continue; | ||
416 | } | ||
417 | pw = getpwuid(ipcp->uid); | ||
418 | switch (format) { | ||
419 | case TIME: | ||
420 | if (pw) | ||
421 | printf("%-8d %-10.10s", msqid, pw->pw_name); | ||
422 | else | ||
423 | printf("%-8d %-10d", msqid, ipcp->uid); | ||
424 | printf(" %-20.16s", msgque.msg_stime | ||
425 | ? ctime(&msgque.msg_stime) + 4 : "Not set"); | ||
426 | printf(" %-20.16s", msgque.msg_rtime | ||
427 | ? ctime(&msgque.msg_rtime) + 4 : "Not set"); | ||
428 | printf(" %-20.16s\n", msgque.msg_ctime | ||
429 | ? ctime(&msgque.msg_ctime) + 4 : "Not set"); | ||
430 | break; | ||
431 | case PID: | ||
432 | if (pw) | ||
433 | printf("%-8d %-10.10s", msqid, pw->pw_name); | ||
434 | else | ||
435 | printf("%-8d %-10d", msqid, ipcp->uid); | ||
436 | printf(" %5d %5d\n", msgque.msg_lspid, msgque.msg_lrpid); | ||
437 | break; | ||
438 | |||
439 | default: | ||
440 | printf("0x%08x ", ipcp->KEY); | ||
441 | if (pw) | ||
442 | printf("%-10d %-10.10s", msqid, pw->pw_name); | ||
443 | else | ||
444 | printf("%-10d %-10d", msqid, ipcp->uid); | ||
445 | printf(" %-10o %-12ld %-12ld\n", ipcp->mode & 0777, | ||
446 | /* | ||
447 | * glibc-2.1.3 and earlier has unsigned short; | ||
448 | * glibc-2.1.91 has variation between | ||
449 | * unsigned short, unsigned long | ||
450 | * Austin has msgqnum_t | ||
451 | */ | ||
452 | (long) msgque.msg_cbytes, (long) msgque.msg_qnum); | ||
453 | break; | ||
454 | } | ||
455 | } | ||
456 | } | ||
457 | |||
458 | |||
459 | static void print_shm(int shmid) | ||
460 | { | ||
461 | struct shmid_ds shmds; | ||
462 | struct ipc_perm *ipcp = &shmds.shm_perm; | ||
463 | |||
464 | if (shmctl(shmid, IPC_STAT, &shmds) == -1) { | ||
465 | bb_perror_msg("shmctl"); | ||
466 | return; | ||
467 | } | ||
468 | |||
469 | printf("\nShared memory Segment shmid=%d\n" | ||
470 | "uid=%d\tgid=%d\tcuid=%d\tcgid=%d\n" | ||
471 | "mode=%#o\taccess_perms=%#o\n" | ||
472 | "bytes=%ld\tlpid=%d\tcpid=%d\tnattch=%ld\n", | ||
473 | shmid, | ||
474 | ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, | ||
475 | ipcp->mode, ipcp->mode & 0777, | ||
476 | (long) shmds.shm_segsz, shmds.shm_lpid, shmds.shm_cpid, | ||
477 | (long) shmds.shm_nattch); | ||
478 | printf("att_time=%-26.24s\n", | ||
479 | shmds.shm_atime ? ctime(&shmds.shm_atime) : "Not set"); | ||
480 | printf("det_time=%-26.24s\n", | ||
481 | shmds.shm_dtime ? ctime(&shmds.shm_dtime) : "Not set"); | ||
482 | printf("change_time=%-26.24s\n\n", ctime(&shmds.shm_ctime)); | ||
483 | } | ||
484 | |||
485 | |||
486 | static void print_msg(int msqid) | ||
487 | { | ||
488 | struct msqid_ds buf; | ||
489 | struct ipc_perm *ipcp = &buf.msg_perm; | ||
490 | |||
491 | if (msgctl(msqid, IPC_STAT, &buf) == -1) { | ||
492 | bb_perror_msg("msgctl"); | ||
493 | return; | ||
494 | } | ||
495 | |||
496 | printf("\nMessage Queue msqid=%d\n" | ||
497 | "uid=%d\tgid=%d\tcuid=%d\tcgid=%d\tmode=%#o\n" | ||
498 | "cbytes=%ld\tqbytes=%ld\tqnum=%ld\tlspid=%d\tlrpid=%d\n", | ||
499 | msqid, ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, ipcp->mode, | ||
500 | /* | ||
501 | * glibc-2.1.3 and earlier has unsigned short; | ||
502 | * glibc-2.1.91 has variation between | ||
503 | * unsigned short, unsigned long | ||
504 | * Austin has msgqnum_t (for msg_qbytes) | ||
505 | */ | ||
506 | (long) buf.msg_cbytes, (long) buf.msg_qbytes, | ||
507 | (long) buf.msg_qnum, buf.msg_lspid, buf.msg_lrpid); | ||
508 | |||
509 | printf("send_time=%-26.24s\n", | ||
510 | buf.msg_stime ? ctime(&buf.msg_stime) : "Not set"); | ||
511 | printf("rcv_time=%-26.24s\n", | ||
512 | buf.msg_rtime ? ctime(&buf.msg_rtime) : "Not set"); | ||
513 | printf("change_time=%-26.24s\n\n", | ||
514 | buf.msg_ctime ? ctime(&buf.msg_ctime) : "Not set"); | ||
515 | } | ||
516 | |||
517 | static void print_sem(int semid) | ||
518 | { | ||
519 | struct semid_ds semds; | ||
520 | struct ipc_perm *ipcp = &semds.sem_perm; | ||
521 | union semun arg; | ||
522 | unsigned int i; | ||
523 | |||
524 | arg.buf = &semds; | ||
525 | if (semctl(semid, 0, IPC_STAT, arg)) { | ||
526 | bb_perror_msg("semctl"); | ||
527 | return; | ||
528 | } | ||
529 | |||
530 | printf("\nSemaphore Array semid=%d\n" | ||
531 | "uid=%d\t gid=%d\t cuid=%d\t cgid=%d\n" | ||
532 | "mode=%#o, access_perms=%#o\n" | ||
533 | "nsems = %ld\n" | ||
534 | "otime = %-26.24s\n", | ||
535 | semid, | ||
536 | ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, | ||
537 | ipcp->mode, ipcp->mode & 0777, | ||
538 | (long) semds.sem_nsems, | ||
539 | semds.sem_otime ? ctime(&semds.sem_otime) : "Not set"); | ||
540 | printf("ctime = %-26.24s\n" | ||
541 | "%-10s %-10s %-10s %-10s %-10s\n", | ||
542 | ctime(&semds.sem_ctime), | ||
543 | "semnum", "value", "ncount", "zcount", "pid"); | ||
544 | |||
545 | arg.val = 0; | ||
546 | for (i = 0; i < semds.sem_nsems; i++) { | ||
547 | int val, ncnt, zcnt, pid; | ||
548 | |||
549 | val = semctl(semid, i, GETVAL, arg); | ||
550 | ncnt = semctl(semid, i, GETNCNT, arg); | ||
551 | zcnt = semctl(semid, i, GETZCNT, arg); | ||
552 | pid = semctl(semid, i, GETPID, arg); | ||
553 | if (val < 0 || ncnt < 0 || zcnt < 0 || pid < 0) { | ||
554 | bb_perror_msg_and_die("semctl"); | ||
555 | } | ||
556 | printf("%-10d %-10d %-10d %-10d %-10d\n", i, val, ncnt, zcnt, pid); | ||
557 | } | ||
558 | niro | 816 | bb_putchar('\n'); |
559 | niro | 532 | } |
560 | |||
561 | niro | 816 | int ipcs_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
562 | int ipcs_main(int argc UNUSED_PARAM, char **argv) | ||
563 | niro | 532 | { |
564 | int id = 0; | ||
565 | unsigned flags = 0; | ||
566 | unsigned opt; | ||
567 | char *opt_i; | ||
568 | #define flag_print (1<<0) | ||
569 | #define flag_msg (1<<1) | ||
570 | #define flag_sem (1<<2) | ||
571 | #define flag_shm (1<<3) | ||
572 | |||
573 | niro | 816 | opt = getopt32(argv, "i:aqsmtcplu", &opt_i); |
574 | niro | 532 | if (opt & 0x1) { // -i |
575 | id = xatoi(opt_i); | ||
576 | flags |= flag_print; | ||
577 | } | ||
578 | if (opt & 0x2) flags |= flag_msg | flag_sem | flag_shm; // -a | ||
579 | if (opt & 0x4) flags |= flag_msg; // -q | ||
580 | if (opt & 0x8) flags |= flag_sem; // -s | ||
581 | if (opt & 0x10) flags |= flag_shm; // -m | ||
582 | if (opt & 0x20) format = TIME; // -t | ||
583 | if (opt & 0x40) format = CREATOR; // -c | ||
584 | if (opt & 0x80) format = PID; // -p | ||
585 | if (opt & 0x100) format = LIMITS; // -l | ||
586 | if (opt & 0x200) format = STATUS; // -u | ||
587 | |||
588 | if (flags & flag_print) { | ||
589 | if (flags & flag_shm) { | ||
590 | print_shm(id); | ||
591 | niro | 816 | fflush_stdout_and_exit(EXIT_SUCCESS); |
592 | niro | 532 | } |
593 | if (flags & flag_sem) { | ||
594 | print_sem(id); | ||
595 | niro | 816 | fflush_stdout_and_exit(EXIT_SUCCESS); |
596 | niro | 532 | } |
597 | if (flags & flag_msg) { | ||
598 | print_msg(id); | ||
599 | niro | 816 | fflush_stdout_and_exit(EXIT_SUCCESS); |
600 | niro | 532 | } |
601 | bb_show_usage(); | ||
602 | } | ||
603 | |||
604 | if (!(flags & (flag_shm | flag_msg | flag_sem))) | ||
605 | flags |= flag_msg | flag_shm | flag_sem; | ||
606 | niro | 816 | bb_putchar('\n'); |
607 | niro | 532 | |
608 | if (flags & flag_shm) { | ||
609 | do_shm(); | ||
610 | niro | 816 | bb_putchar('\n'); |
611 | niro | 532 | } |
612 | if (flags & flag_sem) { | ||
613 | do_sem(); | ||
614 | niro | 816 | bb_putchar('\n'); |
615 | niro | 532 | } |
616 | if (flags & flag_msg) { | ||
617 | do_msg(); | ||
618 | niro | 816 | bb_putchar('\n'); |
619 | niro | 532 | } |
620 | niro | 816 | fflush_stdout_and_exit(EXIT_SUCCESS); |
621 | niro | 532 | } |