diff options
| -rw-r--r-- | util-linux/ipcs.c | 424 |
1 files changed, 204 insertions, 220 deletions
diff --git a/util-linux/ipcs.c b/util-linux/ipcs.c index f1463a8e3..6efe3d2b6 100644 --- a/util-linux/ipcs.c +++ b/util-linux/ipcs.c @@ -4,38 +4,7 @@ * 01 Sept 2004 - Rodney Radford <rradford@mindspring.com> * Adapted for busybox from util-linux-2.12a. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * --- Pre-busybox history from util-linux-2.12a ------------------------ - * - * 1999-02-22 Arkadiusz Mi˙kiewicz <misiek@pld.ORG.PL> - * - added Native Language Support - * - * Patched to display the key field -- hy@picksys.com 12/18/96 - * - * 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. - * - * 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. - * - * Modified Sat Oct 9 10:55:28 1993 for 0.99.13 - * Original author unknown, may be "krishna balasub@cis.ohio-state.edu" - * + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ #include <stdio.h> @@ -128,97 +97,8 @@ union semun { #define TIME 4 #define PID 5 -static void do_shm (char format); -static void do_sem (char format); -static void do_msg (char format); -static void print_shm (int id); -static void print_msg (int id); -static void print_sem (int id); - -int ipcs_main (int argc, char **argv) { - int opt, msg = 0, sem = 0, shm = 0, id=0, print=0; - char format = 0; - char options[] = "atclupsmqi:ih?"; - - while ((opt = getopt (argc, argv, options)) != -1) { - 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': - case '?': - bb_show_usage(); - bb_fflush_stdout_and_exit (0); - } - } - - if (print) { - if (shm) { - print_shm (id); - bb_fflush_stdout_and_exit (0); - } - if (sem) { - print_sem (id); - bb_fflush_stdout_and_exit (0); - } - if (msg) { - print_msg (id); - bb_fflush_stdout_and_exit (0); - } - bb_show_usage(); - bb_fflush_stdout_and_exit (0); - } - - if ( !shm && !msg && !sem) - msg = sem = shm = 1; - bb_printf ("\n"); - if (shm) { - do_shm (format); - bb_printf ("\n"); - } - if (sem) { - do_sem (format); - bb_printf ("\n"); - } - if (msg) { - do_msg (format); - bb_printf ("\n"); - } - return 0; -} - - -static void -print_perms (int id, struct ipc_perm *ipcp) { +static void print_perms (int id, struct ipc_perm *ipcp) { struct passwd *pw; struct group *gr; @@ -244,7 +124,7 @@ print_perms (int id, struct ipc_perm *ipcp) { } -void do_shm (char format) +static void do_shm (char format) { int maxid, shmid, id; struct shmid_ds shmseg; @@ -266,47 +146,51 @@ void do_shm (char format) 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 */ - bb_printf ("max number of segments = %lu\n", - (unsigned long) shminfo.shmmni); - bb_printf ("max seg size (kbytes) = %lu\n", - (unsigned long) (shminfo.shmmax >> 10)); - bb_printf ("max total shared memory (pages) = %lu\n", - (unsigned long) shminfo.shmall); - bb_printf ("min seg size (bytes) = %lu\n", + bb_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: - bb_printf ("------ Shared Memory Status --------\n"); - bb_printf ("segments allocated %d\n", shm_info.used_ids); - bb_printf ("pages allocated %ld\n", shm_info.shm_tot); - bb_printf ("pages resident %ld\n", shm_info.shm_rss); - bb_printf ("pages swapped %ld\n", shm_info.shm_swp); - bb_printf ("Swap performance: %ld attempts\t %ld successes\n", + bb_printf ("------ Shared Memory Status --------\n" + "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: - bb_printf ("------ Shared Memory Segment Creators/Owners --------\n"); - bb_printf ("%-10s %-10s %-10s %-10s %-10s %-10s\n", - "shmid","perms","cuid","cgid","uid","gid"); + bb_printf ("------ Shared Memory Segment Creators/Owners --------\n" + "%-10s %-10s %-10s %-10s %-10s %-10s\n", + "shmid","perms","cuid","cgid","uid","gid"); break; case TIME: - bb_printf ("------ Shared Memory Attach/Detach/Change Times --------\n"); - bb_printf ("%-10s %-10s %-20s %-20s %-20s\n", + bb_printf ("------ Shared Memory Attach/Detach/Change Times --------\n" + "%-10s %-10s %-20s %-20s %-20s\n", "shmid","owner","attached","detached","changed"); break; case PID: - bb_printf ("------ Shared Memory Creator/Last-op --------\n"); - bb_printf ("%-10s %-10s %-10s %-10s\n", + bb_printf ("------ Shared Memory Creator/Last-op --------\n" + "%-10s %-10s %-10s %-10s\n", "shmid","owner","cpid","lpid"); break; default: - bb_printf ("------ Shared Memory Segments --------\n"); - bb_printf ("%-10s %-10s %-10s %-10s %-10s %-10s %-12s\n", + bb_printf ("------ Shared Memory Segments --------\n" + "%-10s %-10s %-10s %-10s %-10s %-10s %-12s\n", "key","shmid","owner","perms","bytes","nattch","status"); break; } @@ -369,7 +253,7 @@ void do_shm (char format) } -void do_sem (char format) +static void do_sem (char format) { int maxid, semid, id; struct semid_ds semary; @@ -391,28 +275,35 @@ void do_sem (char format) arg.array = (ushort *) (void *) &seminfo; /* damn union */ if ((semctl (0, 0, IPC_INFO, arg)) < 0 ) return; - bb_printf ("max number of arrays = %d\n", seminfo.semmni); - bb_printf ("max semaphores per array = %d\n", seminfo.semmsl); - bb_printf ("max semaphores system wide = %d\n", seminfo.semmns); - bb_printf ("max ops per semop call = %d\n", seminfo.semopm); - bb_printf ("semaphore max value = %d\n", seminfo.semvmx); + bb_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: - bb_printf ("------ Semaphore Status --------\n"); - bb_printf ("used arrays = %d\n", seminfo.semusz); - bb_printf ("allocated semaphores = %d\n", seminfo.semaem); + bb_printf ("------ Semaphore Status --------\n" + "used arrays = %d\n" + "allocated semaphores = %d\n", + seminfo.semusz, + seminfo.semaem); return; case CREATOR: - bb_printf ("------ Semaphore Arrays Creators/Owners --------\n"); - bb_printf ("%-10s %-10s %-10s %-10s %-10s %-10s\n", - "semid","perms","cuid","cgid","uid","gid"); + bb_printf ("------ Semaphore Arrays Creators/Owners --------\n" + "%-10s %-10s %-10s %-10s %-10s %-10s\n", + "semid","perms","cuid","cgid","uid","gid"); break; case TIME: - bb_printf ("------ Shared Memory Operation/Change Times --------\n"); - bb_printf ("%-8s %-10s %-26.24s %-26.24s\n", + bb_printf ("------ Shared Memory Operation/Change Times --------\n" + "%-8s %-10s %-26.24s %-26.24s\n", "shmid","owner","last-op","last-changed"); break; @@ -420,8 +311,8 @@ void do_sem (char format) break; default: - bb_printf ("------ Semaphore Arrays --------\n"); - bb_printf ("%-10s %-10s %-10s %-10s %-10s\n", + bb_printf ("------ Semaphore Arrays --------\n" + "%-10s %-10s %-10s %-10s %-10s\n", "key","semid","owner","perms","nsems"); break; } @@ -471,7 +362,7 @@ void do_sem (char format) } -void do_msg (char format) +static void do_msg (char format) { int maxid, msqid, id; struct msqid_ds msgque; @@ -489,41 +380,47 @@ void do_msg (char format) case LIMITS: if ((msgctl (0, IPC_INFO, (struct msqid_ds *) (void *) &msginfo)) < 0 ) return; - bb_printf ("------ Messages: Limits --------\n"); - bb_printf ("max queues system wide = %d\n", msginfo.msgmni); - bb_printf ("max size of message (bytes) = %d\n", msginfo.msgmax); - bb_printf ("default max size of queue (bytes) = %d\n", msginfo.msgmnb); + bb_printf ("------ Messages: Limits --------\n" + "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: - bb_printf ("------ Messages: Status --------\n"); - bb_printf ("allocated queues = %d\n", msginfo.msgpool); - bb_printf ("used headers = %d\n", msginfo.msgmap); - bb_printf ("used space = %d bytes\n", msginfo.msgtql); + bb_printf ("------ Messages: Status --------\n" + "allocated queues = %d\n" + "used headers = %d\n" + "used space = %d bytes\n", + msginfo.msgpool, + msginfo.msgmap, + msginfo.msgtql); return; case CREATOR: - bb_printf ("------ Message Queues: Creators/Owners --------\n"); - bb_printf ("%-10s %-10s %-10s %-10s %-10s %-10s\n", - "msqid","perms","cuid","cgid","uid","gid"); + bb_printf ("------ Message Queues: Creators/Owners --------\n" + "%-10s %-10s %-10s %-10s %-10s %-10s\n", + "msqid","perms","cuid","cgid","uid","gid"); break; case TIME: - bb_printf ("------ Message Queues Send/Recv/Change Times --------\n"); - bb_printf ("%-8s %-10s %-20s %-20s %-20s\n", + bb_printf ("------ Message Queues Send/Recv/Change Times --------\n" + "%-8s %-10s %-20s %-20s %-20s\n", "msqid","owner","send","recv","change"); break; case PID: - bb_printf ("------ Message Queues PIDs --------\n"); - bb_printf ("%-10s %-10s %-10s %-10s\n", + bb_printf ("------ Message Queues PIDs --------\n" + "%-10s %-10s %-10s %-10s\n", "msqid","owner","lspid","lrpid"); break; default: - bb_printf ("------ Message Queues --------\n"); - bb_printf ("%-10s %-10s %-10s %-10s %-12s %-12s\n", - "key", "msqid", "owner", "perms","used-bytes", "messages"); + bb_printf ("------ Message Queues --------\n" + "%-10s %-10s %-10s %-10s %-12s %-12s\n", + "key","msqid","owner","perms","used-bytes","messages"); break; } @@ -581,7 +478,7 @@ void do_msg (char format) } -void print_shm (int shmid) +static void print_shm (int shmid) { struct shmid_ds shmds; struct ipc_perm *ipcp = &shmds.shm_perm; @@ -591,25 +488,27 @@ void print_shm (int shmid) return; } - bb_printf ("\nShared memory Segment shmid=%d\n", shmid); - bb_printf ("uid=%d\tgid=%d\tcuid=%d\tcgid=%d\n", - ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid); - bb_printf ("mode=%#o\taccess_perms=%#o\n", - ipcp->mode, ipcp->mode & 0777); - bb_printf ("bytes=%ld\tlpid=%d\tcpid=%d\tnattch=%ld\n", + bb_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" + "att_time=%-26.24s\n" + "det_time=%-26.24s\n" + "change_time=%-26.24s\n" + "\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); - bb_printf ("att_time=%-26.24s\n", - shmds.shm_atime ? ctime (&shmds.shm_atime) : "Not set"); - bb_printf ("det_time=%-26.24s\n", - shmds.shm_dtime ? ctime (&shmds.shm_dtime) : "Not set"); - bb_printf ("change_time=%-26.24s\n", ctime (&shmds.shm_ctime)); - bb_printf ("\n"); + (long) shmds.shm_nattch, + shmds.shm_atime ? ctime (&shmds.shm_atime) : "Not set", + shmds.shm_dtime ? ctime (&shmds.shm_dtime) : "Not set", + ctime (&shmds.shm_ctime)); return; } -void print_msg (int msqid) +static void print_msg (int msqid) { struct msqid_ds buf; struct ipc_perm *ipcp = &buf.msg_perm; @@ -619,10 +518,15 @@ void print_msg (int msqid) return; } - bb_printf ("\nMessage Queue msqid=%d\n", msqid); - bb_printf ("uid=%d\tgid=%d\tcuid=%d\tcgid=%d\tmode=%#o\n", - ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid, ipcp->mode); - bb_printf ("cbytes=%ld\tqbytes=%ld\tqnum=%ld\tlspid=%d\tlrpid=%d\n", + bb_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" + "send_time=%-26.24s\n" + "rcv_time=%-26.24s\n" + "change_time=%-26.24s\n" + "\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 @@ -630,23 +534,19 @@ void print_msg (int msqid) * 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); - bb_printf ("send_time=%-26.24s\n", - buf.msg_stime ? ctime (&buf.msg_stime) : "Not set"); - bb_printf ("rcv_time=%-26.24s\n", - buf.msg_rtime ? ctime (&buf.msg_rtime) : "Not set"); - bb_printf ("change_time=%-26.24s\n", + (long) buf.msg_qnum, buf.msg_lspid, buf.msg_lrpid, + buf.msg_stime ? ctime (&buf.msg_stime) : "Not set", + buf.msg_rtime ? ctime (&buf.msg_rtime) : "Not set", buf.msg_ctime ? ctime (&buf.msg_ctime) : "Not set"); - bb_printf ("\n"); return; } -void print_sem (int semid) +static void print_sem (int semid) { struct semid_ds semds; struct ipc_perm *ipcp = &semds.sem_perm; union semun arg; - int i; + unsigned int i; arg.buf = &semds; if (semctl (semid, 0, IPC_STAT, arg) < 0) { @@ -654,21 +554,23 @@ void print_sem (int semid) return; } - bb_printf ("\nSemaphore Array semid=%d\n", semid); - bb_printf ("uid=%d\t gid=%d\t cuid=%d\t cgid=%d\n", - ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid); - bb_printf ("mode=%#o, access_perms=%#o\n", - ipcp->mode, ipcp->mode & 0777); - bb_printf ("nsems = %ld\n", (long) semds.sem_nsems); - bb_printf ("otime = %-26.24s\n", - semds.sem_otime ? ctime (&semds.sem_otime) : "Not set"); - bb_printf ("ctime = %-26.24s\n", ctime (&semds.sem_ctime)); - - bb_printf ("%-10s %-10s %-10s %-10s %-10s\n", + bb_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" + "ctime = %-26.24s\n" + "%-10s %-10s %-10s %-10s %-10s\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", + ctime (&semds.sem_ctime), "semnum","value","ncount","zcount","pid"); arg.val = 0; - for (i=0; i< semds.sem_nsems; i++) { + 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); @@ -684,3 +586,85 @@ void print_sem (int semid) bb_printf ("\n"); return; } + +int ipcs_main (int argc, char **argv) { + int opt, msg = 0, sem = 0, shm = 0, id=0, print=0; + char format = 0; + char options[] = "atclupsmqi:ih?"; + + while ((opt = getopt (argc, argv, options)) != -1) { + 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': + case '?': + bb_show_usage(); + bb_fflush_stdout_and_exit (0); + } + } + + if (print) { + if (shm) { + print_shm (id); + bb_fflush_stdout_and_exit (0); + } + if (sem) { + print_sem (id); + bb_fflush_stdout_and_exit (0); + } + if (msg) { + print_msg (id); + bb_fflush_stdout_and_exit (0); + } + bb_show_usage(); + bb_fflush_stdout_and_exit (0); + } + + if ( !shm && !msg && !sem) + msg = sem = shm = 1; + bb_printf ("\n"); + + if (shm) { + do_shm (format); + bb_printf ("\n"); + } + if (sem) { + do_sem (format); + bb_printf ("\n"); + } + if (msg) { + do_msg (format); + bb_printf ("\n"); + } + return 0; +} + |