682 lines
18 KiB
C
682 lines
18 KiB
C
/* Original author unknown, may be "krishna balasub@cis.ohio-state.edu" */
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/*
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Modified Sat Oct 9 10:55:28 1993 for 0.99.13
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Patches from Mike Jagdis (jaggy@purplet.demon.co.uk) applied Wed Feb
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8 12:12:21 1995 by faith@cs.unc.edu to print numeric uids if no
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passwd file entry.
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Patch from arnolds@ifns.de (Heinz-Ado Arnolds) applied Mon Jul 1
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19:30:41 1996 by janl@math.uio.no to add code missing in case PID:
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clauses.
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Patched to display the key field -- hy@picksys.com 12/18/96
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1999-02-22 Arkadiusz Mi秌iewicz <misiek@pld.ORG.PL>
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- added Native Language Support
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*/
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#define __USE_MISC
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <time.h>
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#include <pwd.h>
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#include <grp.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <sys/sem.h>
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/* remove _() stuff */
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#define _(a) a
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/*-------------------------------------------------------------------*/
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/* SHM_DEST and SHM_LOCKED are defined in kernel headers,
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but inside #ifdef __KERNEL__ ... #endif */
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#ifndef SHM_DEST
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/* shm_mode upper byte flags */
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#define SHM_DEST 01000 /* segment will be destroyed on last detach */
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#define SHM_LOCKED 02000 /* segment will not be swapped */
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#endif
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/* For older kernels the same holds for the defines below */
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#ifndef MSG_STAT
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#define MSG_STAT 11
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#define MSG_INFO 12
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#endif
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#ifndef SHM_STAT
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#define SHM_STAT 13
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#define SHM_INFO 14
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struct shm_info {
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int used_ids;
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ulong shm_tot; /* total allocated shm */
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ulong shm_rss; /* total resident shm */
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ulong shm_swp; /* total swapped shm */
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ulong swap_attempts;
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ulong swap_successes;
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};
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#endif
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#ifndef SEM_STAT
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#define SEM_STAT 18
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#define SEM_INFO 19
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#endif
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/* Some versions of libc only define IPC_INFO when __USE_GNU is defined. */
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#ifndef IPC_INFO
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#define IPC_INFO 3
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#endif
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/*-------------------------------------------------------------------*/
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/* The last arg of semctl is a union semun, but where is it defined?
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X/OPEN tells us to define it ourselves, but until recently
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Linux include files would also define it. */
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#if defined (__GNU_LIBRARY__) && !defined(_SEM_SEMUN_UNDEFINED)
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/* union semun is defined by including <sys/sem.h> */
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#else
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/* according to X/OPEN we have to define it ourselves */
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union semun {
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int val;
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struct semid_ds *buf;
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unsigned short int *array;
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struct seminfo *__buf;
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};
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#endif
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/* X/OPEN (Jan 1987) does not define fields key, seq in struct ipc_perm;
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libc 4/5 does not mention struct ipc_term at all, but includes
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<linux/ipc.h>, which defines a struct ipc_perm with such fields.
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glibc-1.09 has no support for sysv ipc.
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glibc 2 uses __key, __seq */
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#if defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1
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#define KEY __key
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#else
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#define KEY _key
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#endif
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#define LIMITS 1
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#define STATUS 2
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#define CREATOR 3
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#define TIME 4
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#define PID 5
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void do_shm (char format);
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void do_sem (char format);
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void do_msg (char format);
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void print_shm (int id);
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void print_msg (int id);
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void print_sem (int id);
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static char *progname;
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static void
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usage(int rc) {
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printf (_("usage : %s -asmq -tclup \n"), progname);
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printf (_("\t%s [-s -m -q] -i id\n"), progname);
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printf (_("\t%s -h for help.\n"), progname);
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exit(rc);
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}
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static void
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help (int rc) {
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printf (_("%s provides information on ipc facilities for"
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" which you have read access.\n"), progname);
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printf (_("Resource Specification:\n\t-m : shared_mem\n\t-q : messages\n"));
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printf (_("\t-s : semaphores\n\t-a : all (default)\n"));
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printf (_("Output Format:\n\t-t : time\n\t-p : pid\n\t-c : creator\n"));
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printf (_("\t-l : limits\n\t-u : summary\n"));
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printf (_("-i id [-s -q -m] : details on resource identified by id\n"));
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usage(rc);
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}
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int
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main (int argc, char **argv) {
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int opt, msg = 0, sem = 0, shm = 0, id=0, print=0;
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char format = 0;
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char options[] = "atcluphsmqi:";
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progname = argv[0];
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while ((opt = getopt (argc, argv, options)) != -1) {
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switch (opt) {
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case 'i':
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id = atoi (optarg);
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print = 1;
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break;
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case 'a':
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msg = shm = sem = 1;
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break;
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case 'q':
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msg = 1;
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break;
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case 's':
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sem = 1;
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break;
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case 'm':
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shm = 1;
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break;
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case 't':
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format = TIME;
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break;
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case 'c':
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format = CREATOR;
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break;
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case 'p':
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format = PID;
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break;
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case 'l':
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format = LIMITS;
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break;
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case 'u':
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format = STATUS;
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break;
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case 'h':
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help(EXIT_SUCCESS);
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case '?':
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usage(EXIT_SUCCESS);
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}
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}
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if (print) {
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if (shm)
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print_shm (id);
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else if (sem)
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print_sem (id);
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else if (msg)
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print_msg (id);
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else
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usage (EXIT_FAILURE);
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} else {
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if ( !shm && !msg && !sem)
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msg = sem = shm = 1;
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printf ("\n");
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if (shm) {
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do_shm (format);
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printf ("\n");
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}
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if (sem) {
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do_sem (format);
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printf ("\n");
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}
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if (msg) {
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do_msg (format);
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printf ("\n");
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}
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}
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return EXIT_SUCCESS;
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}
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static void
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print_perms (int id, struct ipc_perm *ipcp) {
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struct passwd *pw;
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struct group *gr;
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printf ("%-10d %-10o", id, ipcp->mode & 0777);
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if ((pw = getpwuid(ipcp->cuid)))
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printf(" %-10s", pw->pw_name);
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else
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printf(" %-10d", ipcp->cuid);
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if ((gr = getgrgid(ipcp->cgid)))
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printf(" %-10s", gr->gr_name);
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else
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printf(" %-10d", ipcp->cgid);
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if ((pw = getpwuid(ipcp->uid)))
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printf(" %-10s", pw->pw_name);
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else
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printf(" %-10d", ipcp->uid);
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if ((gr = getgrgid(ipcp->gid)))
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printf(" %-10s\n", gr->gr_name);
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else
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printf(" %-10d\n", ipcp->gid);
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}
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void do_shm (char format)
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{
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int maxid, shmid, id;
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struct shmid_ds shmseg;
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struct shm_info shm_info;
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struct shminfo shminfo;
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struct ipc_perm *ipcp = &shmseg.shm_perm;
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struct passwd *pw;
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maxid = shmctl (0, SHM_INFO, (struct shmid_ds *) (void *) &shm_info);
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if (maxid < 0 && errno == ENOSYS) {
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printf (_("kernel not configured for shared memory\n"));
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return;
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}
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switch (format) {
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case LIMITS:
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printf (_("------ Shared Memory Limits --------\n"));
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if ((shmctl (0, IPC_INFO, (struct shmid_ds *) (void *) &shminfo)) < 0 )
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return;
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/* glibc 2.1.3 and all earlier libc's have ints as fields
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of struct shminfo; glibc 2.1.91 has unsigned long; ach */
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printf (_("max number of segments = %lu\n"),
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(unsigned long) shminfo.shmmni);
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printf (_("max seg size (kbytes) = %lu\n"),
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(unsigned long) (shminfo.shmmax >> 10));
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printf (_("max total shared memory (kbytes) = %lu\n"),
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getpagesize() / 1024 * (unsigned long) shminfo.shmall);
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printf (_("min seg size (bytes) = %lu\n"),
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(unsigned long) shminfo.shmmin);
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return;
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case STATUS:
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printf (_("------ Shared Memory Status --------\n"));
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printf (_("segments allocated %d\n"), shm_info.used_ids);
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printf (_("pages allocated %ld\n"), shm_info.shm_tot);
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printf (_("pages resident %ld\n"), shm_info.shm_rss);
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printf (_("pages swapped %ld\n"), shm_info.shm_swp);
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printf (_("Swap performance: %ld attempts\t %ld successes\n"),
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shm_info.swap_attempts, shm_info.swap_successes);
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return;
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case CREATOR:
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printf (_("------ Shared Memory Segment Creators/Owners --------\n"));
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printf ("%-10s %-10s %-10s %-10s %-10s %-10s\n",
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_("shmid"),_("perms"),_("cuid"),_("cgid"),_("uid"),_("gid"));
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break;
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case TIME:
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printf (_("------ Shared Memory Attach/Detach/Change Times --------\n"));
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printf ("%-10s %-10s %-20s %-20s %-20s\n",
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_("shmid"),_("owner"),_("attached"),_("detached"),
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_("changed"));
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break;
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case PID:
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printf (_("------ Shared Memory Creator/Last-op --------\n"));
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printf ("%-10s %-10s %-10s %-10s\n",
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_("shmid"),_("owner"),_("cpid"),_("lpid"));
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break;
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default:
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printf (_("------ Shared Memory Segments --------\n"));
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printf ("%-10s %-10s %-10s %-10s %-10s %-10s %-12s\n",
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_("key"),_("shmid"),_("owner"),_("perms"),_("bytes"),
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_("nattch"),_("status"));
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break;
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}
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for (id = 0; id <= maxid; id++) {
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shmid = shmctl (id, SHM_STAT, &shmseg);
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if (shmid < 0)
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continue;
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if (format == CREATOR) {
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print_perms (shmid, ipcp);
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continue;
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}
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pw = getpwuid(ipcp->uid);
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switch (format) {
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case TIME:
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if (pw)
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printf ("%-10d %-10.10s", shmid, pw->pw_name);
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else
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printf ("%-10d %-10d", shmid, ipcp->uid);
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/* ctime uses static buffer: use separate calls */
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printf(" %-20.16s", shmseg.shm_atime
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? ctime(&shmseg.shm_atime) + 4 : _("Not set"));
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printf(" %-20.16s", shmseg.shm_dtime
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? ctime(&shmseg.shm_dtime) + 4 : _("Not set"));
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printf(" %-20.16s\n", shmseg.shm_ctime
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? ctime(&shmseg.shm_ctime) + 4 : _("Not set"));
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break;
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case PID:
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if (pw)
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printf ("%-10d %-10.10s", shmid, pw->pw_name);
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else
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printf ("%-10d %-10d", shmid, ipcp->uid);
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printf (" %-10d %-10d\n",
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shmseg.shm_cpid, shmseg.shm_lpid);
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break;
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default:
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printf("0x%08x ",ipcp->KEY );
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if (pw)
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printf ("%-10d %-10.10s", shmid, pw->pw_name);
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else
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printf ("%-10d %-10d", shmid, ipcp->uid);
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printf (" %-10o %-10lu %-10ld %-6s %-6s\n",
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ipcp->mode & 0777,
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/*
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* earlier: int, Austin has size_t
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*/
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(unsigned long) shmseg.shm_segsz,
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/*
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* glibc-2.1.3 and earlier has unsigned short;
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* Austin has shmatt_t
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*/
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(long) shmseg.shm_nattch,
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ipcp->mode & SHM_DEST ? _("dest") : " ",
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ipcp->mode & SHM_LOCKED ? _("locked") : " ");
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break;
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}
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}
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return;
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}
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void do_sem (char format)
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{
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int maxid, semid, id;
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struct semid_ds semary;
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struct seminfo seminfo;
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struct ipc_perm *ipcp = &semary.sem_perm;
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struct passwd *pw;
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union semun arg;
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arg.array = (unsigned short *) (void *) &seminfo;
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maxid = semctl (0, 0, SEM_INFO, arg);
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if (maxid < 0) {
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printf (_("kernel not configured for semaphores\n"));
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return;
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}
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switch (format) {
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case LIMITS:
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printf (_("------ Semaphore Limits --------\n"));
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arg.array = (unsigned short *) (void *) &seminfo; /* damn union */
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if ((semctl (0, 0, IPC_INFO, arg)) < 0 )
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return;
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printf (_("max number of arrays = %d\n"), seminfo.semmni);
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printf (_("max semaphores per array = %d\n"), seminfo.semmsl);
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printf (_("max semaphores system wide = %d\n"), seminfo.semmns);
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printf (_("max ops per semop call = %d\n"), seminfo.semopm);
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printf (_("semaphore max value = %d\n"), seminfo.semvmx);
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return;
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case STATUS:
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printf (_("------ Semaphore Status --------\n"));
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printf (_("used arrays = %d\n"), seminfo.semusz);
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printf (_("allocated semaphores = %d\n"), seminfo.semaem);
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return;
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case CREATOR:
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printf (_("------ Semaphore Arrays Creators/Owners --------\n"));
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printf ("%-10s %-10s %-10s %-10s %-10s %-10s\n",
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_("semid"),_("perms"),_("cuid"),_("cgid"),_("uid"),_("gid"));
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break;
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case TIME:
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printf (_("------ Semaphore Operation/Change Times --------\n"));
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printf ("%-8s %-10s %-26.24s %-26.24s\n",
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_("semid"),_("owner"),_("last-op"),_("last-changed"));
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break;
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case PID:
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break;
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default:
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printf (_("------ Semaphore Arrays --------\n"));
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printf ("%-10s %-10s %-10s %-10s %-10s\n",
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_("key"),_("semid"),_("owner"),_("perms"),_("nsems"));
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break;
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}
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for (id = 0; id <= maxid; id++) {
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arg.buf = (struct semid_ds *) &semary;
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semid = semctl (id, 0, SEM_STAT, arg);
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if (semid < 0)
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continue;
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if (format == CREATOR) {
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print_perms (semid, ipcp);
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continue;
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}
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pw = getpwuid(ipcp->uid);
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switch (format) {
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case TIME:
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if (pw)
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printf ("%-8d %-10.10s", semid, pw->pw_name);
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else
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printf ("%-8d %-10d", semid, ipcp->uid);
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printf (" %-26.24s", semary.sem_otime
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? ctime(&semary.sem_otime) : _("Not set"));
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printf (" %-26.24s\n", semary.sem_ctime
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? ctime(&semary.sem_ctime) : _("Not set"));
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break;
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case PID:
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break;
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default:
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printf("0x%08x ", ipcp->KEY);
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if (pw)
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printf ("%-10d %-10.10s", semid, pw->pw_name);
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else
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printf ("%-10d %-10d", semid, ipcp->uid);
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printf (" %-10o %-10ld\n",
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ipcp->mode & 0777,
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/*
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* glibc-2.1.3 and earlier has unsigned short;
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* glibc-2.1.91 has variation between
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* unsigned short and unsigned long
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* Austin prescribes unsigned short.
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*/
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(long) semary.sem_nsems);
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break;
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}
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}
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}
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void do_msg (char format)
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{
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#if 0
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int maxid, msqid, id;
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struct msqid_ds msgque;
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struct msginfo msginfo;
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struct ipc_perm *ipcp = &msgque.msg_perm;
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struct passwd *pw;
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maxid = msgctl (0, MSG_INFO, (struct msqid_ds *) (void *) &msginfo);
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if (maxid < 0) {
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printf (_("kernel not configured for message queues\n"));
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return;
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}
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switch (format) {
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case LIMITS:
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if ((msgctl (0, IPC_INFO, (struct msqid_ds *) (void *) &msginfo)) < 0 )
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return;
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printf (_("------ Messages: Limits --------\n"));
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printf (_("max queues system wide = %d\n"), msginfo.msgmni);
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printf (_("max size of message (bytes) = %d\n"), msginfo.msgmax);
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printf (_("default max size of queue (bytes) = %d\n"), msginfo.msgmnb);
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return;
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case STATUS:
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printf (_("------ Messages: Status --------\n"));
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printf (_("allocated queues = %d\n"), msginfo.msgpool);
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printf (_("used headers = %d\n"), msginfo.msgmap);
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printf (_("used space = %d bytes\n"), msginfo.msgtql);
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|
return;
|
|
|
|
case CREATOR:
|
|
printf (_("------ Message Queues: Creators/Owners --------\n"));
|
|
printf ("%-10s %-10s %-10s %-10s %-10s %-10s\n",
|
|
_("msqid"),_("perms"),_("cuid"),_("cgid"),_("uid"),_("gid"));
|
|
break;
|
|
|
|
case TIME:
|
|
printf (_("------ Message Queues Send/Recv/Change Times --------\n"));
|
|
printf ("%-8s %-10s %-20s %-20s %-20s\n",
|
|
_("msqid"),_("owner"),_("send"),_("recv"),_("change"));
|
|
break;
|
|
|
|
case PID:
|
|
printf (_("------ Message Queues PIDs --------\n"));
|
|
printf ("%-10s %-10s %-10s %-10s\n",
|
|
_("msqid"),_("owner"),_("lspid"),_("lrpid"));
|
|
break;
|
|
|
|
default:
|
|
printf (_("------ Message Queues --------\n"));
|
|
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;
|
|
}
|
|
}
|
|
return;
|
|
#endif
|
|
}
|
|
|
|
|
|
void print_shm (int shmid)
|
|
{
|
|
struct shmid_ds shmds;
|
|
struct ipc_perm *ipcp = &shmds.shm_perm;
|
|
|
|
if (shmctl (shmid, IPC_STAT, &shmds) == -1)
|
|
err(EXIT_FAILURE, _("shmctl failed"));
|
|
|
|
printf (_("\nShared memory Segment shmid=%d\n"), shmid);
|
|
printf (_("uid=%d\tgid=%d\tcuid=%d\tcgid=%d\n"),
|
|
ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid);
|
|
printf (_("mode=%#o\taccess_perms=%#o\n"),
|
|
ipcp->mode, ipcp->mode & 0777);
|
|
printf (_("bytes=%ld\tlpid=%d\tcpid=%d\tnattch=%ld\n"),
|
|
(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"), ctime (&shmds.shm_ctime));
|
|
printf ("\n");
|
|
return;
|
|
}
|
|
|
|
|
|
void print_msg (int msqid)
|
|
{
|
|
#if 0
|
|
struct msqid_ds buf;
|
|
struct ipc_perm *ipcp = &buf.msg_perm;
|
|
|
|
if (msgctl (msqid, IPC_STAT, &buf) == -1)
|
|
err(EXIT_FAILURE, _("msgctl failed"));
|
|
|
|
printf (_("\nMessage Queue msqid=%d\n"), msqid);
|
|
printf (_("uid=%d\tgid=%d\tcuid=%d\tcgid=%d\tmode=%#o\n"),
|
|
ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, ipcp->mode);
|
|
printf (_("cbytes=%ld\tqbytes=%ld\tqnum=%ld\tlspid=%d\tlrpid=%d\n"),
|
|
/*
|
|
* 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"),
|
|
buf.msg_ctime ? ctime (&buf.msg_ctime) : _("Not set"));
|
|
printf ("\n");
|
|
return;
|
|
#endif
|
|
}
|
|
|
|
void print_sem (int semid)
|
|
{
|
|
struct semid_ds semds;
|
|
struct ipc_perm *ipcp = &semds.sem_perm;
|
|
union semun arg;
|
|
int i;
|
|
|
|
arg.buf = &semds;
|
|
if (semctl (semid, 0, IPC_STAT, arg) < 0)
|
|
err(EXIT_FAILURE, _("semctl failed"));
|
|
|
|
printf (_("\nSemaphore Array semid=%d\n"), semid);
|
|
printf (_("uid=%d\t gid=%d\t cuid=%d\t cgid=%d\n"),
|
|
ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid);
|
|
printf (_("mode=%#o, access_perms=%#o\n"),
|
|
ipcp->mode, ipcp->mode & 0777);
|
|
printf (_("nsems = %ld\n"), (long) semds.sem_nsems);
|
|
printf (_("otime = %-26.24s\n"),
|
|
semds.sem_otime ? ctime (&semds.sem_otime) : _("Not set"));
|
|
printf (_("ctime = %-26.24s\n"), ctime (&semds.sem_ctime));
|
|
|
|
printf ("%-10s %-10s %-10s %-10s %-10s\n",
|
|
_("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)
|
|
err(EXIT_FAILURE, _("semctl failed"));
|
|
|
|
printf ("%-10d %-10d %-10d %-10d %-10d\n",
|
|
i, val, ncnt, zcnt, pid);
|
|
}
|
|
printf ("\n");
|
|
return;
|
|
}
|