| /* Original author unknown, but may be "krishna balasub@cis.ohio-state.edu" |
| Modified Sat Oct 9 10:55:28 1993 for 0.99.13 */ |
| |
| /* |
| |
| Patches from Mike Jagdis (jaggy@purplet.demon.co.uk) applied Wed Feb |
| 8 12:12:21 1995 by faith@cs.unc.edu to print numeric uids if no |
| passwd file entry. |
| |
| Patch from arnolds@ifns.de (Heinz-Ado Arnolds) applied Mon Jul 1 |
| 19:30:41 1996 by janl@math.uio.no to add code missing in case PID: |
| clauses. |
| |
| Patched to display the key field -- hy@picksys.com 12/18/96 |
| |
| 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@misiek.eu.org> |
| - added Native Language Support |
| |
| |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <getopt.h> |
| #include <errno.h> |
| #include <time.h> |
| #include <pwd.h> |
| #include <grp.h> |
| #include "nls.h" |
| |
| #include "../defines.h" /* for NEED_linkage_h */ |
| #ifdef NEED_linkage_h |
| #define __KERNEL__ /* required for SHM_DEST etc. */ |
| #include <linux/linkage.h> /* required for the keyword asmlinkage */ |
| #endif |
| /* 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> |
| #ifdef NEED_linkage_h |
| #undef __KERNEL__ |
| #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 int *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 |
| |
| void do_shm (char format); |
| void do_sem (char format); |
| void do_msg (char format); |
| void print_shm (int id); |
| void print_msg (int id); |
| void print_sem (int id); |
| |
| static char *progname; |
| |
| void usage(void) |
| { |
| printf (_("usage : %s -asmq -tclup \n"), progname); |
| printf (_("\t%s [-s -m -q] -i id\n"), progname); |
| printf (_("\t%s -h for help.\n"), progname); |
| return; |
| } |
| |
| void help (void) |
| { |
| printf (_("%s provides information on ipc facilities for"), progname); |
| printf (_(" which you have read access.\n")); |
| printf (_("Resource Specification:\n\t-m : shared_mem\n\t-q : messages\n")); |
| printf (_("\t-s : semaphores\n\t-a : all (default)\n")); |
| printf (_("Output Format:\n\t-t : time\n\t-p : pid\n\t-c : creator\n")); |
| printf (_("\t-l : limits\n\t-u : summary\n")); |
| printf (_("-i id [-s -q -m] : details on resource identified by id\n")); |
| usage(); |
| return; |
| } |
| |
| int main (int argc, char **argv) |
| { |
| int opt, msg = 0, sem = 0, shm = 0, id=0, print=0; |
| char format = 0; |
| char options[] = "atcluphsmqi:"; |
| |
| setlocale(LC_ALL, ""); |
| bindtextdomain(PACKAGE, LOCALEDIR); |
| textdomain(PACKAGE); |
| |
| progname = argv[0]; |
| while ((opt = getopt (argc, argv, options)) != EOF) { |
| switch (opt) { |
| case 'i': |
| id = atoi (optarg); |
| print = 1; |
| break; |
| case 'a': |
| msg = shm = sem = 1; |
| break; |
| case 'q': |
| msg = 1; |
| break; |
| case 's': |
| sem = 1; |
| break; |
| case 'm': |
| shm = 1; |
| break; |
| case 't': |
| format = TIME; |
| break; |
| case 'c': |
| format = CREATOR; |
| break; |
| case 'p': |
| format = PID; |
| break; |
| case 'l': |
| format = LIMITS; |
| break; |
| case 'u': |
| format = STATUS; |
| break; |
| case 'h': |
| help(); |
| exit (0); |
| case '?': |
| usage(); |
| exit (0); |
| } |
| } |
| |
| if (print) { |
| if (shm) { |
| print_shm (id); |
| exit (0); |
| } |
| if (sem) { |
| print_sem (id); |
| exit (0); |
| } |
| if (msg) { |
| print_msg (id); |
| exit (0); |
| } |
| usage(); |
| } |
| |
| if ( !shm && !msg && !sem) |
| msg = sem = shm = 1; |
| printf ("\n"); |
| |
| if (shm) { |
| do_shm (format); |
| printf ("\n"); |
| } |
| if (sem) { |
| do_sem (format); |
| printf ("\n"); |
| } |
| if (msg) { |
| do_msg (format); |
| printf ("\n"); |
| } |
| return 0; |
| } |
| |
| |
| void print_perms (int id, struct ipc_perm *ipcp) |
| { |
| struct passwd *pw; |
| struct group *gr; |
| |
| 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); |
| } |
| |
| |
| void do_shm (char format) |
| { |
| 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 *) &shm_info); |
| if (maxid < 0) { |
| printf (_("kernel not configured for shared memory\n")); |
| return; |
| } |
| |
| switch (format) { |
| case LIMITS: |
| printf (_("------ Shared Memory Limits --------\n")); |
| if ((shmctl (0, IPC_INFO, (struct shmid_ds *) &shminfo)) < 0 ) |
| return; |
| printf (_("max number of segments = %d\n"), shminfo.shmmni); |
| printf (_("max seg size (kbytes) = %d\n"), shminfo.shmmax >> 10); |
| printf (_("max total shared memory (kbytes) = %d\n"), shminfo.shmall << 2); |
| printf (_("min seg size (bytes) = %d\n"), shminfo.shmmin); |
| return; |
| |
| case STATUS: |
| printf (_("------ Shared Memory Status --------\n")); |
| printf (_("segments allocated %d\n"), shm_info.used_ids); |
| printf (_("pages allocated %ld\n"), shm_info.shm_tot); |
| printf (_("pages resident %ld\n"), shm_info.shm_rss); |
| printf (_("pages swapped %ld\n"), shm_info.shm_swp); |
| printf (_("Swap performance: %ld attempts\t %ld successes\n"), |
| shm_info.swap_attempts, shm_info.swap_successes); |
| return; |
| |
| case CREATOR: |
| printf (_("------ Shared Memory Segment Creators/Owners --------\n")); |
| printf (_("%-10s%-10s%-10s%-10s%-10s%-10s\n"), |
| _("shmid"),_("perms"),_("cuid"),_("cgid"),_("uid"),_("gid")); |
| break; |
| |
| case TIME: |
| printf (_("------ Shared Memory Attach/Detach/Change Times --------\n")); |
| printf (_("%-10s%-10s %-20s%-20s%-20s\n"), |
| _("shmid"),_("owner"),_("attached"),_("detached"),_("changed")); |
| break; |
| |
| case PID: |
| printf (_("------ Shared Memory Creator/Last-op --------\n")); |
| printf (_("%-10s%-10s%-10s%-10s\n"),_("shmid"),_("owner"),_("cpid"),_("lpid")); |
| break; |
| |
| default: |
| printf (_("------ Shared Memory Segments --------\n")); |
| 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); |
| printf(" %-20.16s%-20.16s%-20.16s\n", |
| shmseg.shm_atime ? ctime(&shmseg.shm_atime) + 4 : _("Not set"), |
| shmseg.shm_dtime ? ctime(&shmseg.shm_dtime) + 4 : _("Not set"), |
| 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%-10d%-10d%-6s%-6s\n", |
| ipcp->mode & 0777, |
| shmseg.shm_segsz, shmseg.shm_nattch, |
| ipcp->mode & SHM_DEST ? _("dest") : " ", |
| ipcp->mode & SHM_LOCKED ? _("locked") : " "); |
| break; |
| } |
| } |
| return; |
| } |
| |
| |
| void do_sem (char format) |
| { |
| 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 = (ushort *) &seminfo; |
| maxid = semctl (0, 0, SEM_INFO, arg); |
| if (maxid < 0) { |
| printf (_("kernel not configured for semaphores\n")); |
| return; |
| } |
| |
| switch (format) { |
| case LIMITS: |
| printf (_("------ Semaphore Limits --------\n")); |
| arg.array = (ushort *) &seminfo; /* damn union */ |
| if ((semctl (0, 0, IPC_INFO, arg)) < 0 ) |
| return; |
| printf (_("max number of arrays = %d\n"), seminfo.semmni); |
| printf (_("max semaphores per array = %d\n"), seminfo.semmsl); |
| printf (_("max semaphores system wide = %d\n"), seminfo.semmns); |
| printf (_("max ops per semop call = %d\n"), seminfo.semopm); |
| printf (_("semaphore max value = %d\n"), seminfo.semvmx); |
| return; |
| |
| case STATUS: |
| printf (_("------ Semaphore Status --------\n")); |
| printf (_("used arrays = %d\n"), seminfo.semusz); |
| printf (_("allocated semaphores = %d\n"), seminfo.semaem); |
| return; |
| |
| case CREATOR: |
| printf (_("------ Semaphore Arrays Creators/Owners --------\n")); |
| printf (_("%-10s%-10s%-10s%-10s%-10s%-10s\n"), |
| _("semid"),_("perms"),_("cuid"),_("cgid"),_("uid"),("gid")); |
| break; |
| |
| case TIME: |
| printf (_("------ Shared Memory Operation/Change Times --------\n")); |
| printf (_("%-8s%-10s %-26.24s %-26.24s\n"), |
| _("shmid"),_("owner"),_("last-op"),_("last-changed")); |
| break; |
| |
| case PID: |
| break; |
| |
| default: |
| printf (_("------ Semaphore Arrays --------\n")); |
| printf (_("%-10s%-10s%-10s%-10s%-10s%-12s\n"), |
| _("key"),_("semid"),_("owner"),_("perms"),_("nsems"),_("status")); |
| 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); |
| printf (" %-26.24s %-26.24s\n", |
| semary.sem_otime ? ctime(&semary.sem_otime) : _("Not set"), |
| 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%-10d\n", |
| ipcp->mode & 0777, |
| semary.sem_nsems); |
| break; |
| } |
| } |
| return; |
| } |
| |
| |
| void do_msg (char format) |
| { |
| 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 *) &msginfo); |
| if (maxid < 0) { |
| printf (_("kernel not configured for shared memory\n")); |
| return; |
| } |
| |
| switch (format) { |
| case LIMITS: |
| if ((msgctl (0, IPC_INFO, (struct msqid_ds *) &msginfo)) < 0 ) |
| return; |
| printf (_("------ Messages: Limits --------\n")); |
| printf (_("max queues system wide = %d\n"), msginfo.msgmni); |
| printf (_("max size of message (bytes) = %d\n"), msginfo.msgmax); |
| printf (_("default max size of queue (bytes) = %d\n"), msginfo.msgmnb); |
| return; |
| |
| case STATUS: |
| printf (_("------ Messages: Status --------\n")); |
| printf (_("allocated queues = %d\n"), msginfo.msgpool); |
| printf (_("used headers = %d\n"), msginfo.msgmap); |
| printf (_("used space = %d bytes\n"), msginfo.msgtql); |
| 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%-20.16s%-20.16s\n", |
| msgque.msg_stime ? ctime(&msgque.msg_stime) + 4 : _("Not set"), |
| msgque.msg_rtime ? ctime(&msgque.msg_rtime) + 4 : _("Not set"), |
| 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%-12d%-12d\n", |
| ipcp->mode & 0777, msgque.msg_cbytes, |
| msgque.msg_qnum); |
| break; |
| } |
| } |
| return; |
| } |
| |
| |
| void print_shm (int shmid) |
| { |
| struct shmid_ds shmds; |
| struct ipc_perm *ipcp = &shmds.shm_perm; |
| |
| if (shmctl (shmid, IPC_STAT, &shmds) == -1) { |
| perror ("shmctl "); |
| return; |
| } |
| |
| 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=%d\tlpid=%d\tcpid=%d\tnattch=%d\n"), |
| shmds.shm_segsz, shmds.shm_lpid, shmds.shm_cpid, |
| shmds.shm_nattch); |
| printf (_("att_time=%s"), shmds.shm_atime ? ctime (&shmds.shm_atime) : |
| _("Not set\n")); |
| printf (_("det_time=%s"), shmds.shm_dtime ? ctime (&shmds.shm_dtime) : |
| _("Not set\n")); |
| printf (_("change_time=%s"), ctime (&shmds.shm_ctime)); |
| printf ("\n"); |
| return; |
| } |
| |
| |
| |
| void print_msg (int msqid) |
| { |
| struct msqid_ds buf; |
| struct ipc_perm *ipcp = &buf.msg_perm; |
| |
| if (msgctl (msqid, IPC_STAT, &buf) == -1) { |
| perror ("msgctl "); |
| return; |
| } |
| 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=%d\tqbytes=%d\tqnum=%d\tlspid=%d\tlrpid=%d\n"), |
| buf.msg_cbytes, buf.msg_qbytes, buf.msg_qnum, buf.msg_lspid, |
| buf.msg_lrpid); |
| printf (_("send_time=%srcv_time=%schange_time=%s"), |
| buf.msg_rtime? ctime (&buf.msg_rtime) : _("Not Set\n"), |
| buf.msg_stime? ctime (&buf.msg_stime) : _("Not Set\n"), |
| buf.msg_ctime? ctime (&buf.msg_ctime) : _("Not Set\n")); |
| printf ("\n"); |
| return; |
| } |
| |
| 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) { |
| perror ("semctl "); |
| return; |
| } |
| 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 = %d\n"), semds.sem_nsems); |
| printf (_("otime = %s"), semds.sem_otime ? ctime (&semds.sem_otime) : |
| _("Not set\n")); |
| printf (_("ctime = %s"), 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) { |
| perror ("semctl "); |
| exit (1); |
| } |
| printf ("%-10d%-10d%-10d%-10d%-10d\n", i, val, ncnt, zcnt, pid); |
| } |
| printf ("\n"); |
| return; |
| } |
| |
