Contents of /tags/mkinitrd-6_2_1/busybox/util-linux/ipcs.c
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Sun May 30 12:16:23 2010 UTC (14 years, 4 months ago) by niro
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Sun May 30 12:16:23 2010 UTC (14 years, 4 months ago) by niro
File MIME type: text/plain
File size: 17060 byte(s)
tagged 'mkinitrd-6_2_1'
1 | /* 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 | #include "libbb.h" |
21 | |
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 | #if defined(__GNU_LIBRARY__) && !defined(_SEM_SEMUN_UNDEFINED) |
65 | /* 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 | unsigned short *array; |
72 | 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 | #if defined(__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1 |
82 | #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 | 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 | |
109 | 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 | } |
116 | |
117 | |
118 | static NOINLINE 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 NOINLINE 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 NOINLINE 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 | bb_putchar('\n'); |
559 | } |
560 | |
561 | int ipcs_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
562 | int ipcs_main(int argc UNUSED_PARAM, char **argv) |
563 | { |
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 | opt = getopt32(argv, "i:aqsmtcplu", &opt_i); |
574 | 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 | fflush_stdout_and_exit(EXIT_SUCCESS); |
592 | } |
593 | if (flags & flag_sem) { |
594 | print_sem(id); |
595 | fflush_stdout_and_exit(EXIT_SUCCESS); |
596 | } |
597 | if (flags & flag_msg) { |
598 | print_msg(id); |
599 | fflush_stdout_and_exit(EXIT_SUCCESS); |
600 | } |
601 | bb_show_usage(); |
602 | } |
603 | |
604 | if (!(flags & (flag_shm | flag_msg | flag_sem))) |
605 | flags |= flag_msg | flag_shm | flag_sem; |
606 | bb_putchar('\n'); |
607 | |
608 | if (flags & flag_shm) { |
609 | do_shm(); |
610 | bb_putchar('\n'); |
611 | } |
612 | if (flags & flag_sem) { |
613 | do_sem(); |
614 | bb_putchar('\n'); |
615 | } |
616 | if (flags & flag_msg) { |
617 | do_msg(); |
618 | bb_putchar('\n'); |
619 | } |
620 | fflush_stdout_and_exit(EXIT_SUCCESS); |
621 | } |