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-rw-r--r--util-linux/ipcs.c424
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;
+}
+
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