[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/util-linux/ipcs.c b/ap/app/busybox/src/util-linux/ipcs.c
new file mode 100644
index 0000000..2668caf
--- /dev/null
+++ b/ap/app/busybox/src/util-linux/ipcs.c
@@ -0,0 +1,637 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * ipcs.c -- provides information on allocated ipc resources.
+ *
+ * 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 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() */
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+#include <sys/msg.h>
+#include <sys/shm.h>
+
+#include "libbb.h"
+
+/*-------------------------------------------------------------------*/
+/* SHM_DEST and SHM_LOCKED are defined in kernel headers,
+ but inside #ifdef __KERNEL__ ... #endif */
+#ifndef SHM_DEST
+/* shm_mode upper byte flags */
+#define SHM_DEST 01000 /* segment will be destroyed on last detach */
+#define SHM_LOCKED 02000 /* segment will not be swapped */
+#endif
+
+/* For older kernels the same holds for the defines below */
+#ifndef MSG_STAT
+#define MSG_STAT 11
+#define MSG_INFO 12
+#endif
+
+#ifndef SHM_STAT
+#define SHM_STAT 13
+#define SHM_INFO 14
+struct shm_info {
+ int used_ids;
+ 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
+
+#ifndef SEM_STAT
+#define SEM_STAT 18
+#define SEM_INFO 19
+#endif
+
+/* Some versions of libc only define IPC_INFO when __USE_GNU is defined. */
+#ifndef IPC_INFO
+#define IPC_INFO 3
+#endif
+/*-------------------------------------------------------------------*/
+
+/* The last arg of semctl is a union semun, but where is it defined?
+ X/OPEN tells us to define it ourselves, but until recently
+ Linux include files would also define it. */
+#if defined(__GNU_LIBRARY__) && !defined(_SEM_SEMUN_UNDEFINED)
+/* union semun is defined by including <sys/sem.h> */
+#else
+/* according to X/OPEN we have to define it ourselves */
+union semun {
+ int val;
+ struct semid_ds *buf;
+ unsigned short *array;
+ struct seminfo *__buf;
+};
+#endif
+
+/* X/OPEN (Jan 1987) does not define fields key, seq in struct ipc_perm;
+ libc 4/5 does not mention struct ipc_term at all, but includes
+ <linux/ipc.h>, which defines a struct ipc_perm with such fields.
+ glibc-1.09 has no support for sysv ipc.
+ glibc 2 uses __key, __seq */
+#if defined(__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1
+#define KEY __key
+#else
+#define KEY key
+#endif
+
+#define LIMITS 1
+#define STATUS 2
+#define CREATOR 3
+#define TIME 4
+#define PID 5
+
+static char format;
+
+static void print_perms(int id, struct ipc_perm *ipcp)
+{
+ struct passwd *pw;
+ struct group *gr;
+
+ printf("%-10d %-10o", id, ipcp->mode & 0777);
+
+ 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 NOINLINE void do_shm(void)
+{
+ int maxid, shmid, id;
+ struct shmid_ds shmseg;
+ struct shm_info shm_info;
+ struct shminfo shminfo;
+ struct ipc_perm *ipcp = &shmseg.shm_perm;
+ struct passwd *pw;
+
+ maxid = shmctl(0, SHM_INFO, (struct shmid_ds *) (void *) &shm_info);
+ if (maxid < 0) {
+ printf("kernel not configured for %s\n", "shared memory");
+ return;
+ }
+
+ switch (format) {
+ case LIMITS:
+ printf("------ Shared Memory %s --------\n", "Limits");
+ 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 */
+ 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);
+ 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);
+ 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");
+ break;
+
+ case TIME:
+ printf("------ Shared Memory %s --------\n", "Attach/Detach/Change Times");
+ 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");
+ break;
+
+ default:
+ printf("------ Shared Memory %s --------\n", "Segments");
+ printf("%-10s %-10s %-10s %-10s %-10s %-10s %-12s\n",
+ "key", "shmid", "owner", "perms", "bytes", "nattch",
+ "status");
+ break;
+ }
+
+ for (id = 0; id <= maxid; id++) {
+ shmid = shmctl(id, SHM_STAT, &shmseg);
+ if (shmid < 0)
+ continue;
+ if (format == CREATOR) {
+ print_perms(shmid, ipcp);
+ continue;
+ }
+ pw = getpwuid(ipcp->uid);
+ switch (format) {
+ case TIME:
+ if (pw)
+ printf("%-10d %-10.10s", shmid, pw->pw_name);
+ else
+ 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");
+ printf(" %-20.16s", shmseg.shm_dtime
+ ? ctime(&shmseg.shm_dtime) + 4 : "Not set");
+ printf(" %-20.16s\n", shmseg.shm_ctime
+ ? ctime(&shmseg.shm_ctime) + 4 : "Not set");
+ break;
+ case PID:
+ if (pw)
+ printf("%-10d %-10.10s", shmid, pw->pw_name);
+ else
+ printf("%-10d %-10d", shmid, ipcp->uid);
+ printf(" %-10d %-10d\n", shmseg.shm_cpid, shmseg.shm_lpid);
+ break;
+
+ default:
+ printf("0x%08x ", ipcp->KEY);
+ if (pw)
+ printf("%-10d %-10.10s", shmid, pw->pw_name);
+ 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" : " ");
+ break;
+ }
+ }
+}
+
+
+static NOINLINE void do_sem(void)
+{
+ int maxid, semid, id;
+ struct semid_ds semary;
+ struct seminfo seminfo;
+ struct ipc_perm *ipcp = &semary.sem_perm;
+ struct passwd *pw;
+ union semun arg;
+
+ arg.array = (unsigned short *) (void *) &seminfo;
+ maxid = semctl(0, 0, SEM_INFO, arg);
+ if (maxid < 0) {
+ printf("kernel not configured for %s\n", "semaphores");
+ return;
+ }
+
+ switch (format) {
+ case LIMITS:
+ printf("------ Semaphore %s --------\n", "Limits");
+ 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);
+ return;
+
+ case STATUS:
+ printf("------ Semaphore %s --------\n", "Status");
+ 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");
+ 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");
+ break;
+
+ case PID:
+ break;
+
+ default:
+ printf("------ Semaphore %s --------\n", "Arrays");
+ printf("%-10s %-10s %-10s %-10s %-10s\n",
+ "key", "semid", "owner", "perms", "nsems");
+ break;
+ }
+
+ for (id = 0; id <= maxid; id++) {
+ arg.buf = (struct semid_ds *) &semary;
+ semid = semctl(id, 0, SEM_STAT, arg);
+ if (semid < 0)
+ continue;
+ if (format == CREATOR) {
+ print_perms(semid, ipcp);
+ continue;
+ }
+ pw = getpwuid(ipcp->uid);
+ switch (format) {
+ case TIME:
+ if (pw)
+ printf("%-8d %-10.10s", semid, pw->pw_name);
+ else
+ 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");
+ printf(" %-26.24s\n", semary.sem_ctime
+ ? ctime(&semary.sem_ctime) : "Not set");
+ break;
+ case PID:
+ break;
+
+ default:
+ printf("0x%08x ", ipcp->KEY);
+ if (pw)
+ printf("%-10d %-10.9s", semid, pw->pw_name);
+ 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);
+ break;
+ }
+ }
+}
+
+
+static NOINLINE void do_msg(void)
+{
+ int maxid, msqid, id;
+ struct msqid_ds msgque;
+ struct msginfo msginfo;
+ struct ipc_perm *ipcp = &msgque.msg_perm;
+ struct passwd *pw;
+
+ maxid = msgctl(0, MSG_INFO, (struct msqid_ds *) (void *) &msginfo);
+ if (maxid < 0) {
+ printf("kernel not configured for %s\n", "message queues");
+ return;
+ }
+
+ switch (format) {
+ case LIMITS:
+ 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);
+ 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);
+ return;
+
+ case CREATOR:
+ printf("------ Message%s --------\n", " Queues: Creators/Owners");
+ 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");
+ break;
+
+ case PID:
+ printf("------ Message%s --------\n", " Queues PIDs");
+ 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");
+ break;
+ }
+
+ for (id = 0; id <= maxid; id++) {
+ msqid = msgctl(id, MSG_STAT, &msgque);
+ if (msqid < 0)
+ continue;
+ if (format == CREATOR) {
+ print_perms(msqid, ipcp);
+ continue;
+ }
+ pw = getpwuid(ipcp->uid);
+ switch (format) {
+ case TIME:
+ if (pw)
+ printf("%-8d %-10.10s", msqid, pw->pw_name);
+ else
+ printf("%-8d %-10d", msqid, ipcp->uid);
+ printf(" %-20.16s", msgque.msg_stime
+ ? ctime(&msgque.msg_stime) + 4 : "Not set");
+ printf(" %-20.16s", msgque.msg_rtime
+ ? ctime(&msgque.msg_rtime) + 4 : "Not set");
+ printf(" %-20.16s\n", msgque.msg_ctime
+ ? ctime(&msgque.msg_ctime) + 4 : "Not set");
+ break;
+ case PID:
+ if (pw)
+ printf("%-8d %-10.10s", msqid, pw->pw_name);
+ else
+ printf("%-8d %-10d", msqid, ipcp->uid);
+ printf(" %5d %5d\n", msgque.msg_lspid, msgque.msg_lrpid);
+ break;
+
+ default:
+ printf("0x%08x ", ipcp->KEY);
+ if (pw)
+ printf("%-10d %-10.10s", msqid, pw->pw_name);
+ 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);
+ break;
+ }
+ }
+}
+
+
+static void print_shm(int shmid)
+{
+ struct shmid_ds shmds;
+ struct ipc_perm *ipcp = &shmds.shm_perm;
+
+ if (shmctl(shmid, IPC_STAT, &shmds) == -1) {
+ bb_perror_msg("shmctl");
+ return;
+ }
+
+ 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);
+ printf("att_time=%-26.24s\n",
+ shmds.shm_atime ? ctime(&shmds.shm_atime) : "Not set");
+ printf("det_time=%-26.24s\n",
+ shmds.shm_dtime ? ctime(&shmds.shm_dtime) : "Not set");
+ printf("change_time=%-26.24s\n\n", ctime(&shmds.shm_ctime));
+}
+
+
+static void print_msg(int msqid)
+{
+ struct msqid_ds buf;
+ struct ipc_perm *ipcp = &buf.msg_perm;
+
+ if (msgctl(msqid, IPC_STAT, &buf) == -1) {
+ bb_perror_msg("msgctl");
+ return;
+ }
+
+ 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);
+
+ printf("send_time=%-26.24s\n",
+ buf.msg_stime ? ctime(&buf.msg_stime) : "Not set");
+ printf("rcv_time=%-26.24s\n",
+ 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");
+}
+
+static void print_sem(int semid)
+{
+ struct semid_ds semds;
+ struct ipc_perm *ipcp = &semds.sem_perm;
+ union semun arg;
+ unsigned int i;
+
+ arg.buf = &semds;
+ if (semctl(semid, 0, IPC_STAT, arg)) {
+ bb_perror_msg("semctl");
+ return;
+ }
+
+ 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");
+ printf("ctime = %-26.24s\n"
+ "%-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++) {
+ int val, ncnt, zcnt, pid;
+
+ val = semctl(semid, i, GETVAL, arg);
+ ncnt = semctl(semid, i, GETNCNT, arg);
+ zcnt = semctl(semid, i, GETZCNT, arg);
+ pid = semctl(semid, i, GETPID, arg);
+ if (val < 0 || ncnt < 0 || zcnt < 0 || pid < 0) {
+ bb_perror_msg_and_die("semctl");
+ }
+ printf("%-10d %-10d %-10d %-10d %-10d\n", i, val, ncnt, zcnt, pid);
+ }
+ bb_putchar('\n');
+}
+
+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;
+ unsigned opt;
+ char *opt_i;
+#define flag_print (1<<0)
+#define flag_msg (1<<1)
+#define flag_sem (1<<2)
+#define flag_shm (1<<3)
+
+ opt = getopt32(argv, "i:aqsmtcplu", &opt_i);
+ if (opt & 0x1) { // -i
+ id = xatoi(opt_i);
+ flags |= flag_print;
+ }
+ if (opt & 0x2) flags |= flag_msg | flag_sem | flag_shm; // -a
+ if (opt & 0x4) flags |= flag_msg; // -q
+ if (opt & 0x8) flags |= flag_sem; // -s
+ if (opt & 0x10) flags |= flag_shm; // -m
+ if (opt & 0x20) format = TIME; // -t
+ if (opt & 0x40) format = CREATOR; // -c
+ if (opt & 0x80) format = PID; // -p
+ if (opt & 0x100) format = LIMITS; // -l
+ if (opt & 0x200) format = STATUS; // -u
+
+ if (flags & flag_print) {
+ if (flags & flag_shm) {
+ print_shm(id);
+ fflush_stdout_and_exit(EXIT_SUCCESS);
+ }
+ if (flags & flag_sem) {
+ print_sem(id);
+ fflush_stdout_and_exit(EXIT_SUCCESS);
+ }
+ if (flags & flag_msg) {
+ print_msg(id);
+ fflush_stdout_and_exit(EXIT_SUCCESS);
+ }
+ bb_show_usage();
+ }
+
+ if (!(flags & (flag_shm | flag_msg | flag_sem)))
+ flags |= flag_msg | flag_shm | flag_sem;
+ bb_putchar('\n');
+
+ if (flags & flag_shm) {
+ do_shm();
+ bb_putchar('\n');
+ }
+ if (flags & flag_sem) {
+ do_sem();
+ bb_putchar('\n');
+ }
+ if (flags & flag_msg) {
+ do_msg();
+ bb_putchar('\n');
+ }
+ fflush_stdout_and_exit(EXIT_SUCCESS);
+}