* 01 Sept 2004 - Rodney Radford <rradford@mindspring.com>
* Adapted for busybox from util-linux-2.12a.
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
+//usage:#define ipcs_trivial_usage
+//usage: "[[-smq] -i shmid] | [[-asmq] [-tcplu]]"
+//usage:#define ipcs_full_usage "\n\n"
+//usage: " -i Show specific resource"
+//usage: "\nResource specification:"
+//usage: "\n -m Shared memory segments"
+//usage: "\n -q Message queues"
+//usage: "\n -s Semaphore arrays"
+//usage: "\n -a All (default)"
+//usage: "\nOutput format:"
+//usage: "\n -t Time"
+//usage: "\n -c Creator"
+//usage: "\n -p Pid"
+//usage: "\n -l Limits"
+//usage: "\n -u Summary"
+
/* X/OPEN tells us to use <sys/{types,ipc,sem}.h> for semctl() */
/* X/OPEN tells us to use <sys/{types,ipc,msg}.h> for msgctl() */
/* X/OPEN tells us to use <sys/{types,ipc,shm}.h> for shmctl() */
#define SHM_INFO 14
struct shm_info {
int used_ids;
- ulong shm_tot; /* total allocated shm */
- ulong shm_rss; /* total resident shm */
- ulong shm_swp; /* total swapped shm */
- ulong swap_attempts;
- ulong swap_successes;
+ unsigned long shm_tot; /* total allocated shm */
+ unsigned long shm_rss; /* total resident shm */
+ unsigned long shm_swp; /* total swapped shm */
+ unsigned long swap_attempts;
+ unsigned long swap_successes;
};
#endif
union semun {
int val;
struct semid_ds *buf;
- unsigned short int *array;
+ unsigned short *array;
struct seminfo *__buf;
};
#endif
printf("%-10d %-10o", id, ipcp->mode & 0777);
- if ((pw = getpwuid(ipcp->cuid)))
- printf(" %-10s", pw->pw_name);
- else
- printf(" %-10d", ipcp->cuid);
- if ((gr = getgrgid(ipcp->cgid)))
- printf(" %-10s", gr->gr_name);
- else
- printf(" %-10d", ipcp->cgid);
-
- if ((pw = getpwuid(ipcp->uid)))
- printf(" %-10s", pw->pw_name);
- else
- printf(" %-10d", ipcp->uid);
- if ((gr = getgrgid(ipcp->gid)))
- printf(" %-10s\n", gr->gr_name);
- else
- printf(" %-10d\n", ipcp->gid);
+ pw = getpwuid(ipcp->cuid);
+ if (pw) printf(" %-10s", pw->pw_name);
+ else printf(" %-10d", ipcp->cuid);
+ gr = getgrgid(ipcp->cgid);
+ if (gr) printf(" %-10s", gr->gr_name);
+ else printf(" %-10d", ipcp->cgid);
+
+ pw = getpwuid(ipcp->uid);
+ if (pw) printf(" %-10s", pw->pw_name);
+ else printf(" %-10d", ipcp->uid);
+ gr = getgrgid(ipcp->gid);
+ if (gr) printf(" %-10s\n", gr->gr_name);
+ else printf(" %-10d\n", ipcp->gid);
}
-static void do_shm(void)
+static NOINLINE void do_shm(void)
{
int maxid, shmid, id;
struct shmid_ds shmseg;
if ((shmctl(0, IPC_INFO, (struct shmid_ds *) (void *) &shminfo)) < 0)
return;
/* glibc 2.1.3 and all earlier libc's have ints as fields
- of struct shminfo; glibc 2.1.91 has unsigned long; ach */
+ * of struct shminfo; glibc 2.1.91 has unsigned long; ach */
printf("max number of segments = %lu\n"
- "max seg size (kbytes) = %lu\n"
- "max total shared memory (pages) = %lu\n"
- "min seg size (bytes) = %lu\n",
- (unsigned long) shminfo.shmmni,
- (unsigned long) (shminfo.shmmax >> 10),
- (unsigned long) shminfo.shmall,
- (unsigned long) shminfo.shmmin);
+ "max seg size (kbytes) = %lu\n"
+ "max total shared memory (pages) = %lu\n"
+ "min seg size (bytes) = %lu\n",
+ (unsigned long) shminfo.shmmni,
+ (unsigned long) (shminfo.shmmax >> 10),
+ (unsigned long) shminfo.shmall,
+ (unsigned long) shminfo.shmmin);
return;
case STATUS:
printf("------ Shared Memory %s --------\n", "Status");
- printf( "segments allocated %d\n"
- "pages allocated %ld\n"
- "pages resident %ld\n"
- "pages swapped %ld\n"
- "Swap performance: %ld attempts\t%ld successes\n",
- shm_info.used_ids,
- shm_info.shm_tot,
- shm_info.shm_rss,
- shm_info.shm_swp,
- shm_info.swap_attempts, shm_info.swap_successes);
+ printf("segments allocated %d\n"
+ "pages allocated %ld\n"
+ "pages resident %ld\n"
+ "pages swapped %ld\n"
+ "Swap performance: %ld attempts\t%ld successes\n",
+ shm_info.used_ids,
+ shm_info.shm_tot,
+ shm_info.shm_rss,
+ shm_info.shm_swp,
+ shm_info.swap_attempts, shm_info.swap_successes);
return;
case CREATOR:
printf("------ Shared Memory %s --------\n", "Segment Creators/Owners");
- printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n",
- "shmid", "perms", "cuid", "cgid", "uid", "gid");
+ printf("%-10s %-10s %-10s %-10s %-10s %-10s\n",
+ "shmid", "perms", "cuid", "cgid", "uid", "gid");
break;
case TIME:
printf("------ Shared Memory %s --------\n", "Attach/Detach/Change Times");
- printf( "%-10s %-10s %-20s %-20s %-20s\n",
- "shmid", "owner", "attached", "detached", "changed");
+ printf("%-10s %-10s %-20s %-20s %-20s\n",
+ "shmid", "owner", "attached", "detached", "changed");
break;
case PID:
printf("------ Shared Memory %s --------\n", "Creator/Last-op");
- printf( "%-10s %-10s %-10s %-10s\n",
- "shmid", "owner", "cpid", "lpid");
+ printf("%-10s %-10s %-10s %-10s\n",
+ "shmid", "owner", "cpid", "lpid");
break;
default:
printf("------ Shared Memory %s --------\n", "Segments");
- printf( "%-10s %-10s %-10s %-10s %-10s %-10s %-12s\n",
- "key", "shmid", "owner", "perms", "bytes", "nattch",
- "status");
+ printf("%-10s %-10s %-10s %-10s %-10s %-10s %-12s\n",
+ "key", "shmid", "owner", "perms", "bytes", "nattch",
+ "status");
break;
}
printf("%-10d %-10d", shmid, ipcp->uid);
/* ctime uses static buffer: use separate calls */
printf(" %-20.16s", shmseg.shm_atime
- ? ctime(&shmseg.shm_atime) + 4 : "Not set");
+ ? ctime(&shmseg.shm_atime) + 4 : "Not set");
printf(" %-20.16s", shmseg.shm_dtime
- ? ctime(&shmseg.shm_dtime) + 4 : "Not set");
+ ? ctime(&shmseg.shm_dtime) + 4 : "Not set");
printf(" %-20.16s\n", shmseg.shm_ctime
- ? ctime(&shmseg.shm_ctime) + 4 : "Not set");
+ ? ctime(&shmseg.shm_ctime) + 4 : "Not set");
break;
case PID:
if (pw)
else
printf("%-10d %-10d", shmid, ipcp->uid);
printf(" %-10o %-10lu %-10ld %-6s %-6s\n", ipcp->mode & 0777,
- /*
- * earlier: int, Austin has size_t
- */
- (unsigned long) shmseg.shm_segsz,
- /*
- * glibc-2.1.3 and earlier has unsigned short;
- * Austin has shmatt_t
- */
- (long) shmseg.shm_nattch,
- ipcp->mode & SHM_DEST ? "dest" : " ",
- ipcp->mode & SHM_LOCKED ? "locked" : " ");
+ /*
+ * earlier: int, Austin has size_t
+ */
+ (unsigned long) shmseg.shm_segsz,
+ /*
+ * glibc-2.1.3 and earlier has unsigned short;
+ * Austin has shmatt_t
+ */
+ (long) shmseg.shm_nattch,
+ ipcp->mode & SHM_DEST ? "dest" : " ",
+ ipcp->mode & SHM_LOCKED ? "locked" : " ");
break;
}
}
}
-static void do_sem(void)
+static NOINLINE void do_sem(void)
{
int maxid, semid, id;
struct semid_ds semary;
struct passwd *pw;
union semun arg;
- arg.array = (ushort *) (void *) &seminfo;
+ arg.array = (unsigned short *) (void *) &seminfo;
maxid = semctl(0, 0, SEM_INFO, arg);
if (maxid < 0) {
printf("kernel not configured for %s\n", "semaphores");
switch (format) {
case LIMITS:
printf("------ Semaphore %s --------\n", "Limits");
- arg.array = (ushort *) (void *) &seminfo; /* damn union */
+ arg.array = (unsigned short *) (void *) &seminfo; /* damn union */
if ((semctl(0, 0, IPC_INFO, arg)) < 0)
return;
printf("max number of arrays = %d\n"
- "max semaphores per array = %d\n"
- "max semaphores system wide = %d\n"
- "max ops per semop call = %d\n"
- "semaphore max value = %d\n",
- seminfo.semmni,
- seminfo.semmsl,
- seminfo.semmns, seminfo.semopm, seminfo.semvmx);
+ "max semaphores per array = %d\n"
+ "max semaphores system wide = %d\n"
+ "max ops per semop call = %d\n"
+ "semaphore max value = %d\n",
+ seminfo.semmni,
+ seminfo.semmsl,
+ seminfo.semmns, seminfo.semopm, seminfo.semvmx);
return;
case STATUS:
printf("------ Semaphore %s --------\n", "Status");
- printf( "used arrays = %d\n"
- "allocated semaphores = %d\n",
- seminfo.semusz, seminfo.semaem);
+ printf("used arrays = %d\n"
+ "allocated semaphores = %d\n",
+ seminfo.semusz, seminfo.semaem);
return;
case CREATOR:
printf("------ Semaphore %s --------\n", "Arrays Creators/Owners");
- printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n",
- "semid", "perms", "cuid", "cgid", "uid", "gid");
+ printf("%-10s %-10s %-10s %-10s %-10s %-10s\n",
+ "semid", "perms", "cuid", "cgid", "uid", "gid");
break;
case TIME:
printf("------ Shared Memory %s --------\n", "Operation/Change Times");
- printf( "%-8s %-10s %-26.24s %-26.24s\n",
- "shmid", "owner", "last-op", "last-changed");
+ printf("%-8s %-10s %-26.24s %-26.24s\n",
+ "shmid", "owner", "last-op", "last-changed");
break;
case PID:
default:
printf("------ Semaphore %s --------\n", "Arrays");
- printf( "%-10s %-10s %-10s %-10s %-10s\n",
- "key", "semid", "owner", "perms", "nsems");
+ printf("%-10s %-10s %-10s %-10s %-10s\n",
+ "key", "semid", "owner", "perms", "nsems");
break;
}
printf("%-8d %-10d", semid, ipcp->uid);
/* ctime uses static buffer: use separate calls */
printf(" %-26.24s", semary.sem_otime
- ? ctime(&semary.sem_otime) : "Not set");
+ ? ctime(&semary.sem_otime) : "Not set");
printf(" %-26.24s\n", semary.sem_ctime
- ? ctime(&semary.sem_ctime) : "Not set");
+ ? ctime(&semary.sem_ctime) : "Not set");
break;
case PID:
break;
else
printf("%-10d %-9d", semid, ipcp->uid);
printf(" %-10o %-10ld\n", ipcp->mode & 0777,
- /*
- * glibc-2.1.3 and earlier has unsigned short;
- * glibc-2.1.91 has variation between
- * unsigned short and unsigned long
- * Austin prescribes unsigned short.
- */
- (long) semary.sem_nsems);
+ /*
+ * glibc-2.1.3 and earlier has unsigned short;
+ * glibc-2.1.91 has variation between
+ * unsigned short and unsigned long
+ * Austin prescribes unsigned short.
+ */
+ (long) semary.sem_nsems);
break;
}
}
}
-static void do_msg(void)
+static NOINLINE void do_msg(void)
{
int maxid, msqid, id;
struct msqid_ds msgque;
if ((msgctl(0, IPC_INFO, (struct msqid_ds *) (void *) &msginfo)) < 0)
return;
printf("------ Message%s --------\n", "s: Limits");
- printf( "max queues system wide = %d\n"
- "max size of message (bytes) = %d\n"
- "default max size of queue (bytes) = %d\n",
- msginfo.msgmni, msginfo.msgmax, msginfo.msgmnb);
+ printf("max queues system wide = %d\n"
+ "max size of message (bytes) = %d\n"
+ "default max size of queue (bytes) = %d\n",
+ msginfo.msgmni, msginfo.msgmax, msginfo.msgmnb);
return;
case STATUS:
printf("------ Message%s --------\n", "s: Status");
- printf( "allocated queues = %d\n"
- "used headers = %d\n"
- "used space = %d bytes\n",
- msginfo.msgpool, msginfo.msgmap, msginfo.msgtql);
+ printf("allocated queues = %d\n"
+ "used headers = %d\n"
+ "used space = %d bytes\n",
+ msginfo.msgpool, msginfo.msgmap, msginfo.msgtql);
return;
case CREATOR:
printf("------ Message%s --------\n", " Queues: Creators/Owners");
- printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n",
- "msqid", "perms", "cuid", "cgid", "uid", "gid");
+ printf("%-10s %-10s %-10s %-10s %-10s %-10s\n",
+ "msqid", "perms", "cuid", "cgid", "uid", "gid");
break;
case TIME:
printf("------ Message%s --------\n", " Queues Send/Recv/Change Times");
- printf( "%-8s %-10s %-20s %-20s %-20s\n",
- "msqid", "owner", "send", "recv", "change");
+ printf("%-8s %-10s %-20s %-20s %-20s\n",
+ "msqid", "owner", "send", "recv", "change");
break;
case PID:
printf("------ Message%s --------\n", " Queues PIDs");
- printf( "%-10s %-10s %-10s %-10s\n",
- "msqid", "owner", "lspid", "lrpid");
+ printf("%-10s %-10s %-10s %-10s\n",
+ "msqid", "owner", "lspid", "lrpid");
break;
default:
printf("------ Message%s --------\n", " Queues");
- printf( "%-10s %-10s %-10s %-10s %-12s %-12s\n",
- "key", "msqid", "owner", "perms", "used-bytes", "messages");
+ printf("%-10s %-10s %-10s %-10s %-12s %-12s\n",
+ "key", "msqid", "owner", "perms", "used-bytes", "messages");
break;
}
else
printf("%-8d %-10d", msqid, ipcp->uid);
printf(" %-20.16s", msgque.msg_stime
- ? ctime(&msgque.msg_stime) + 4 : "Not set");
+ ? ctime(&msgque.msg_stime) + 4 : "Not set");
printf(" %-20.16s", msgque.msg_rtime
- ? ctime(&msgque.msg_rtime) + 4 : "Not set");
+ ? ctime(&msgque.msg_rtime) + 4 : "Not set");
printf(" %-20.16s\n", msgque.msg_ctime
- ? ctime(&msgque.msg_ctime) + 4 : "Not set");
+ ? ctime(&msgque.msg_ctime) + 4 : "Not set");
break;
case PID:
if (pw)
else
printf("%-10d %-10d", msqid, ipcp->uid);
printf(" %-10o %-12ld %-12ld\n", ipcp->mode & 0777,
- /*
- * glibc-2.1.3 and earlier has unsigned short;
- * glibc-2.1.91 has variation between
- * unsigned short, unsigned long
- * Austin has msgqnum_t
- */
- (long) msgque.msg_cbytes, (long) msgque.msg_qnum);
+ /*
+ * glibc-2.1.3 and earlier has unsigned short;
+ * glibc-2.1.91 has variation between
+ * unsigned short, unsigned long
+ * Austin has msgqnum_t
+ */
+ (long) msgque.msg_cbytes, (long) msgque.msg_qnum);
break;
}
}
}
printf("\nShared memory Segment shmid=%d\n"
- "uid=%d\tgid=%d\tcuid=%d\tcgid=%d\n"
- "mode=%#o\taccess_perms=%#o\n"
- "bytes=%ld\tlpid=%d\tcpid=%d\tnattch=%ld\n",
- shmid,
- ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid,
- ipcp->mode, ipcp->mode & 0777,
- (long) shmds.shm_segsz, shmds.shm_lpid, shmds.shm_cpid,
- (long) shmds.shm_nattch);
+ "uid=%d\tgid=%d\tcuid=%d\tcgid=%d\n"
+ "mode=%#o\taccess_perms=%#o\n"
+ "bytes=%ld\tlpid=%d\tcpid=%d\tnattch=%ld\n",
+ shmid,
+ ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid,
+ ipcp->mode, ipcp->mode & 0777,
+ (long) shmds.shm_segsz, shmds.shm_lpid, shmds.shm_cpid,
+ (long) shmds.shm_nattch);
printf("att_time=%-26.24s\n",
- shmds.shm_atime ? ctime(&shmds.shm_atime) : "Not set");
+ shmds.shm_atime ? ctime(&shmds.shm_atime) : "Not set");
printf("det_time=%-26.24s\n",
- shmds.shm_dtime ? ctime(&shmds.shm_dtime) : "Not set");
+ shmds.shm_dtime ? ctime(&shmds.shm_dtime) : "Not set");
printf("change_time=%-26.24s\n\n", ctime(&shmds.shm_ctime));
}
}
printf("\nMessage Queue msqid=%d\n"
- "uid=%d\tgid=%d\tcuid=%d\tcgid=%d\tmode=%#o\n"
- "cbytes=%ld\tqbytes=%ld\tqnum=%ld\tlspid=%d\tlrpid=%d\n",
- msqid, ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, ipcp->mode,
- /*
- * glibc-2.1.3 and earlier has unsigned short;
- * glibc-2.1.91 has variation between
- * unsigned short, unsigned long
- * Austin has msgqnum_t (for msg_qbytes)
- */
- (long) buf.msg_cbytes, (long) buf.msg_qbytes,
- (long) buf.msg_qnum, buf.msg_lspid, buf.msg_lrpid);
+ "uid=%d\tgid=%d\tcuid=%d\tcgid=%d\tmode=%#o\n"
+ "cbytes=%ld\tqbytes=%ld\tqnum=%ld\tlspid=%d\tlrpid=%d\n",
+ msqid, ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, ipcp->mode,
+ /*
+ * glibc-2.1.3 and earlier has unsigned short;
+ * glibc-2.1.91 has variation between
+ * unsigned short, unsigned long
+ * Austin has msgqnum_t (for msg_qbytes)
+ */
+ (long) buf.msg_cbytes, (long) buf.msg_qbytes,
+ (long) buf.msg_qnum, buf.msg_lspid, buf.msg_lrpid);
printf("send_time=%-26.24s\n",
- buf.msg_stime ? ctime(&buf.msg_stime) : "Not set");
+ buf.msg_stime ? ctime(&buf.msg_stime) : "Not set");
printf("rcv_time=%-26.24s\n",
- buf.msg_rtime ? ctime(&buf.msg_rtime) : "Not set");
+ buf.msg_rtime ? ctime(&buf.msg_rtime) : "Not set");
printf("change_time=%-26.24s\n\n",
- buf.msg_ctime ? ctime(&buf.msg_ctime) : "Not set");
+ buf.msg_ctime ? ctime(&buf.msg_ctime) : "Not set");
}
static void print_sem(int semid)
}
printf("\nSemaphore Array semid=%d\n"
- "uid=%d\t gid=%d\t cuid=%d\t cgid=%d\n"
- "mode=%#o, access_perms=%#o\n"
- "nsems = %ld\n"
- "otime = %-26.24s\n",
- semid,
- ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid,
- ipcp->mode, ipcp->mode & 0777,
- (long) semds.sem_nsems,
- semds.sem_otime ? ctime(&semds.sem_otime) : "Not set");
+ "uid=%d\t gid=%d\t cuid=%d\t cgid=%d\n"
+ "mode=%#o, access_perms=%#o\n"
+ "nsems = %ld\n"
+ "otime = %-26.24s\n",
+ semid,
+ ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid,
+ ipcp->mode, ipcp->mode & 0777,
+ (long) semds.sem_nsems,
+ semds.sem_otime ? ctime(&semds.sem_otime) : "Not set");
printf("ctime = %-26.24s\n"
- "%-10s %-10s %-10s %-10s %-10s\n",
- ctime(&semds.sem_ctime),
- "semnum", "value", "ncount", "zcount", "pid");
+ "%-10s %-10s %-10s %-10s %-10s\n",
+ ctime(&semds.sem_ctime),
+ "semnum", "value", "ncount", "zcount", "pid");
arg.val = 0;
for (i = 0; i < semds.sem_nsems; i++) {
}
printf("%-10d %-10d %-10d %-10d %-10d\n", i, val, ncnt, zcnt, pid);
}
- puts("");
+ bb_putchar('\n');
}
-int ipcs_main(int argc, char **argv);
-int ipcs_main(int argc, char **argv)
+int ipcs_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int ipcs_main(int argc UNUSED_PARAM, char **argv)
{
int id = 0;
unsigned flags = 0;
#define flag_sem (1<<2)
#define flag_shm (1<<3)
- opt = getopt32(argc, argv, "i:aqsmtcplu", &opt_i);
+ opt = getopt32(argv, "i:aqsmtcplu", &opt_i);
if (opt & 0x1) { // -i
id = xatoi(opt_i);
flags |= flag_print;
if (flags & flag_print) {
if (flags & flag_shm) {
print_shm(id);
- fflush_stdout_and_exit(0);
+ fflush_stdout_and_exit(EXIT_SUCCESS);
}
if (flags & flag_sem) {
print_sem(id);
- fflush_stdout_and_exit(0);
+ fflush_stdout_and_exit(EXIT_SUCCESS);
}
if (flags & flag_msg) {
print_msg(id);
- fflush_stdout_and_exit(0);
+ fflush_stdout_and_exit(EXIT_SUCCESS);
}
bb_show_usage();
}
if (!(flags & (flag_shm | flag_msg | flag_sem)))
flags |= flag_msg | flag_shm | flag_sem;
- puts("");
+ bb_putchar('\n');
if (flags & flag_shm) {
do_shm();
- puts("");
+ bb_putchar('\n');
}
if (flags & flag_sem) {
do_sem();
- puts("");
+ bb_putchar('\n');
}
if (flags & flag_msg) {
do_msg();
- puts("");
+ bb_putchar('\n');
}
- fflush_stdout_and_exit(0);
+ fflush_stdout_and_exit(EXIT_SUCCESS);
}
projects / oweals / busybox.git / blobdiff