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-rw-r--r--file_cmds/ipcs/ipcs.1132
-rw-r--r--file_cmds/ipcs/ipcs.c553
2 files changed, 685 insertions, 0 deletions
diff --git a/file_cmds/ipcs/ipcs.1 b/file_cmds/ipcs/ipcs.1
new file mode 100644
index 0000000..f0a6df4
--- /dev/null
+++ b/file_cmds/ipcs/ipcs.1
@@ -0,0 +1,132 @@
+.\"
+.\" Copyright (c) 1994 SigmaSoft, Th. Lockert
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by SigmaSoft, Th. Lockert.
+.\" 3. The name of the author may not be used to endorse or promote products
+.\" derived from this software without specific prior written permission
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD: src/usr.bin/ipcs/ipcs.1,v 1.16 2003/05/21 21:07:28 ru Exp $
+.\"
+.Dd June 18, 1994
+.Dt "IPCS" 1
+.Os
+.Sh NAME
+.Nm ipcs
+.Nd report System V interprocess communication facilities status
+.Sh SYNOPSIS
+.Nm ipcs
+.Op Fl abcMmopQqSsTt
+.Sh DESCRIPTION
+The
+.Nm ipcs
+utility provides information on System V interprocess communication
+(IPC) facilities on the system.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl a
+Show the maximum amount of information possible when
+displaying active semaphores, message queues,
+and shared memory segments.
+(This is shorthand for specifying the
+.Fl b ,
+.Fl c ,
+.Fl o ,
+.Fl p ,
+and
+.Fl t
+options.)
+.It Fl b
+Show the maximum allowed sizes for active semaphores, message queues,
+and shared memory segments. The
+.Dq maximum allowed size
+is the maximum number of bytes in a message on a message queue,
+the size of a shared memory segment,
+or the number of semaphores in a set of semaphores.
+.It Fl c
+Show the creator's name and group for active semaphores, message queues,
+and shared memory segments.
+.It Fl M
+Display system information about shared memory.
+.It Fl m
+Display information about active shared memory segments.
+.It Fl o
+Show outstanding usage for active message queues,
+and shared memory segments. The
+.Dq outstanding usage
+is the number of messages in a message queue, or the number
+of processes attached to a shared memory segment.
+.It Fl p
+Show the process ID information for active semaphores, message queues,
+and shared memory segments. The
+.Dq process ID information
+is the last process to send a message to or receive a message from
+a message queue,
+the process that created a semaphore, or the last process to attach
+or detach a shared memory segment.
+.It Fl Q
+Display system information about messages queues.
+.It Fl q
+Display information about active message queues.
+.It Fl S
+Display system information about semaphores.
+.It Fl s
+Display information about active semaphores.
+.It Fl T
+Display system information about shared memory, message queues
+and semaphores.
+.It Fl t
+Show access times for active semaphores, message queues,
+and shared memory segments. The access times is the time
+of the last control operation on an IPC object,
+the last send or receive of a message,
+the last attach or detach of a shared memory segment,
+or the last operation on a semaphore.
+.El
+.Pp
+If none of the
+.Fl M ,
+.Fl m ,
+.Fl Q ,
+.Fl q ,
+.Fl S ,
+or
+.Fl s
+options are specified, information about all active IPC facilities is
+listed.
+.Sh RESTRICTIONS
+System data structures may change while
+.Nm ipcs
+is running; the output of
+.Nm ipcs
+is not guaranteed to be consistent.
+.Sh BUGS
+This manual page is woefully incomplete, because it does not
+at all attempt to explain the information printed by
+.Nm ipcs .
+.Sh SEE ALSO
+.Xr ipcrm 1
+.Sh AUTHORS
+.An Thorsten Lockert Aq tholo@sigmasoft.com
diff --git a/file_cmds/ipcs/ipcs.c b/file_cmds/ipcs/ipcs.c
new file mode 100644
index 0000000..986b229
--- /dev/null
+++ b/file_cmds/ipcs/ipcs.c
@@ -0,0 +1,553 @@
+/*
+ * Copyright (c) 1994 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+
+#include <assert.h>
+#include <err.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <nlist.h>
+#include <limits.h>
+#include <paths.h>
+#include <pwd.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sysexits.h>
+
+#include "sys/types.h"
+#include <sys/ucred.h>
+#include <sys/time.h>
+#include <sys/proc.h>
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <errno.h>
+#include "sys/ipcs.h"
+#define KERNEL 1 /* To get new ipc_perm and __(sem|shm|msg)ds_new */
+#include "sys/ipc.h"
+#include "sys/sem_internal.h"
+#include "sys/shm_internal.h"
+#include "sys/msg.h"
+
+
+/* The following is a kludge, until the problem of multiple inclusions
+ of ipc.h is taken care of. */
+#ifndef IXSEQ_TO_IPCID
+#define IXSEQ_TO_IPCID(ix,perm) (((perm._seq) << 16L) | (ix & 0xffff))
+#endif
+
+static char *
+fmt_perm(u_short mode, char write_char)
+{
+ static char buffer[100];
+
+ buffer[0] = '-';
+ buffer[1] = '-';
+ buffer[2] = ((mode & 0400) ? 'r' : '-');
+ buffer[3] = ((mode & 0200) ? write_char : '-');
+ buffer[4] = '-';
+ buffer[5] = ((mode & 0040) ? 'r' : '-');
+ buffer[6] = ((mode & 0020) ? write_char : '-');
+ buffer[7] = '-';
+ buffer[8] = ((mode & 0004) ? 'r' : '-');
+ buffer[9] = ((mode & 0002) ? write_char : '-');
+ buffer[10] = '-';
+ buffer[11] = '\0';
+ return (&buffer[0]);
+}
+
+static void
+cvt_time(time_t t, char *buf)
+{
+ struct tm *tm;
+
+ if (t == 0) {
+ strcpy(buf, "no-entry");
+ } else {
+ tm = localtime(&t);
+ if (tm != NULL) {
+ sprintf(buf, "%2d:%02d:%02d",
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ }
+ }
+}
+#define SHMINFO 1
+#define SHMTOTAL 2
+#define MSGINFO 4
+#define MSGTOTAL 8
+#define SEMINFO 16
+#define SEMTOTAL 32
+
+#define BIGGEST 1
+#define CREATOR 2
+#define OUTSTANDING 4
+#define PID 8
+#define TIME 16
+
+static void
+usage(void)
+{
+ errx(EX_USAGE, "%s","usage: ipcs [-abcmopqstMQST]\n");
+}
+
+int
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ int display = 0;
+ int option = 0;
+ int exit_val = 0;
+ time_t now;
+ char datestring[100];
+ int i;
+
+ while ((i = getopt(argc, argv, "MmQqSsabcoptT")) != -1)
+ switch (i) {
+ case 'M':
+ display = SHMTOTAL;
+ break;
+ case 'm':
+ display |= SHMINFO;
+ break;
+ case 'Q':
+ display = MSGTOTAL;
+ break;
+ case 'q':
+ display |= MSGINFO;
+ break;
+ case 'S':
+ display = SEMTOTAL;
+ break;
+ case 's':
+ display |= SEMINFO;
+ break;
+ case 'T':
+ display = SHMTOTAL | MSGTOTAL | SEMTOTAL;
+ break;
+ case 'a':
+ option |= BIGGEST | CREATOR | OUTSTANDING | PID | TIME;
+ break;
+ case 'b':
+ option |= BIGGEST;
+ break;
+ case 'c':
+ option |= CREATOR;
+ break;
+ case 'o':
+ option |= OUTSTANDING;
+ break;
+ case 'p':
+ option |= PID;
+ break;
+ case 't':
+ option |= TIME;
+ break;
+ default:
+ usage();
+ }
+ if (display == 0)
+ display = SHMINFO | MSGINFO | SEMINFO;
+ now = time(0);
+ struct tm* tm = localtime(&now);
+ if (tm == NULL) {
+ now = 0;
+ tm = localtime(&now);
+ }
+ if (0 == strftime(datestring, sizeof(datestring), "%a %b %e %H:%M:%S %Z %Y", tm))
+ errx(1, "strftime failed\n");
+ printf("IPC status from <running system> as of %s\n", datestring);
+ if ((display & (MSGINFO | MSGTOTAL))) {
+ if (display & MSGTOTAL) {
+ struct IPCS_command ic;
+ struct msginfo msginfo;
+ size_t ic_size = sizeof(ic);
+
+ ic.ipcs_magic = IPCS_MAGIC;
+ ic.ipcs_op = IPCS_MSG_CONF;
+ ic.ipcs_cursor = 0; /* 0 for fw. compat. */
+ ic.ipcs_data = &msginfo;
+ ic.ipcs_datalen = sizeof(msginfo);
+
+ if (sysctlbyname(IPCS_MSG_SYSCTL, &ic, &ic_size, &ic, ic_size)) {
+ if (errno != EPERM) {
+ char buffer[1024];
+ snprintf(buffer, 1024, "sysctlbyname(IPCS_MSG_SYSCTL, op=CONF, &ic, &%ld) datalen=%d",
+ sizeof(ic), ic.ipcs_datalen);
+ perror(buffer);
+ } else
+ perror("sysctlbyname IPCS_MSG_SYSCTL");
+ }
+
+ printf("msginfo:\n");
+ printf("\tmsgmax: %6d\t(max characters in a message)\n",
+ msginfo.msgmax);
+ printf("\tmsgmni: %6d\t(# of message queues)\n",
+ msginfo.msgmni);
+ printf("\tmsgmnb: %6d\t(max characters in a message queue)\n",
+ msginfo.msgmnb);
+ printf("\tmsgtql: %6d\t(max # of messages in system)\n",
+ msginfo.msgtql);
+ printf("\tmsgssz: %6d\t(size of a message segment)\n",
+ msginfo.msgssz);
+ printf("\tmsgseg: %6d\t(# of message segments in system)\n\n",
+ msginfo.msgseg);
+ }
+ if (display & MSGINFO) {
+ struct IPCS_command ic;
+ struct __msqid_ds_new ds;
+ struct __msqid_ds_new *msqptr = &ds;
+ size_t ic_size = sizeof(ic);
+
+ printf("T ID KEY MODE OWNER GROUP");
+ if (option & CREATOR)
+ printf(" CREATOR CGROUP");
+ if (option & OUTSTANDING)
+ printf(" CBYTES QNUM");
+ if (option & BIGGEST)
+ printf(" QBYTES");
+ if (option & PID)
+ printf(" LSPID LRPID");
+ if (option & TIME)
+ printf(" STIME RTIME CTIME");
+ printf("\nMessage Queues:\n");
+
+ ic.ipcs_magic = IPCS_MAGIC;
+ ic.ipcs_op = IPCS_MSG_ITER;
+ ic.ipcs_cursor = 0; /* start */
+ ic.ipcs_datalen = sizeof(*msqptr);
+ ic.ipcs_data = msqptr;
+
+ memset(msqptr, 0, sizeof(*msqptr));
+
+ while(!(sysctlbyname(IPCS_MSG_SYSCTL, &ic, &ic_size, &ic, ic_size))) {
+ ic.ipcs_data = msqptr;
+
+ if (msqptr->msg_qbytes != 0) {
+ char stime_buf[100], rtime_buf[100],
+ ctime_buf[100];
+
+ cvt_time(msqptr->msg_stime, stime_buf);
+ cvt_time(msqptr->msg_rtime, rtime_buf);
+ cvt_time(msqptr->msg_ctime, ctime_buf);
+
+ printf("q %6d 0x%08x %s %8s %8s",
+ IXSEQ_TO_IPCID((ic.ipcs_cursor-1), msqptr->msg_perm),
+ (int)msqptr->msg_perm._key,
+ fmt_perm(msqptr->msg_perm.mode, 'w'),
+ user_from_uid(msqptr->msg_perm.uid, 0),
+ group_from_gid(msqptr->msg_perm.gid, 0));
+
+ if (option & CREATOR)
+ printf(" %8s %8s",
+ user_from_uid(msqptr->msg_perm.cuid, 0),
+ group_from_gid(msqptr->msg_perm.cgid, 0));
+
+ if (option & OUTSTANDING)
+ printf(" %6lu %6lu",
+ msqptr->msg_cbytes,
+ msqptr->msg_qnum);
+
+ if (option & BIGGEST)
+ printf(" %6lu",
+ msqptr->msg_qbytes);
+
+ if (option & PID)
+ printf(" %6d %6d",
+ msqptr->msg_lspid,
+ msqptr->msg_lrpid);
+
+ if (option & TIME)
+ printf(" %s %s %s",
+ stime_buf,
+ rtime_buf,
+ ctime_buf);
+
+ printf("\n");
+ }
+ memset(msqptr, 0, sizeof(*msqptr));
+ errno = 0;
+ }
+
+ if (errno != ENOENT && errno != ERANGE) {
+ if (errno != EPERM) {
+ errx(1, "sysctlbyname(IPCS_MSG_SYSCTL, op=ITER, &ic, &%ld) datalen=%d failed:%s\n",
+ sizeof(ic), ic.ipcs_datalen, strerror(errno));
+ } else
+ errx(1, "sysctlbyname IPCS_MSG_SYSCTL: %s", strerror(errno));
+ }
+ printf("\n");
+ }
+ } else
+ if (display & (MSGINFO | MSGTOTAL)) {
+ errx(1, "%s", "SVID messages facility not configured in the system\n");
+ }
+
+ if ((display & (SHMINFO | SHMTOTAL))) {
+ if (display & SHMTOTAL) {
+ struct IPCS_command ic;
+ struct shminfo shminfo;
+ size_t ic_size = sizeof(ic);
+
+ ic.ipcs_magic = IPCS_MAGIC;
+ ic.ipcs_op = IPCS_SHM_CONF;
+ ic.ipcs_cursor = 0; /* 0 for fw. compat. */
+ ic.ipcs_data = &shminfo;
+ ic.ipcs_datalen = sizeof(shminfo);
+
+ if (sysctlbyname(IPCS_SHM_SYSCTL, &ic, &ic_size, &ic, ic_size)) {
+ if (errno != EPERM) {
+ errx(1, "sysctlbyname(IPCS_SHM_SYSCTL, op=CONF, &ic, &%ld) datalen=%d failed: %s\n",
+ sizeof(ic), ic.ipcs_datalen, strerror(errno));
+ } else
+ errx(1, "sysctlbyname: %s", strerror(errno));
+ }
+ printf("shminfo:\n");
+ printf("\tshmmax: %7lld\t(max shared memory segment size)\n",
+ shminfo.shmmax);
+ printf("\tshmmin: %7lld\t(min shared memory segment size)\n",
+ shminfo.shmmin);
+ printf("\tshmmni: %7lld\t(max number of shared memory identifiers)\n",
+ shminfo.shmmni);
+ printf("\tshmseg: %7lld\t(max shared memory segments per process)\n",
+ shminfo.shmseg);
+ printf("\tshmall: %7lld\t(max amount of shared memory in pages)\n\n",
+ shminfo.shmall);
+ }
+ if (display & SHMINFO) {
+ struct IPCS_command ic;
+ struct __shmid_ds_new ds;
+ struct __shmid_ds_new *shmptr = &ds;
+ size_t ic_size = sizeof(ic);
+
+ printf("T ID KEY MODE OWNER GROUP");
+ if (option & CREATOR)
+ printf(" CREATOR CGROUP");
+ if (option & OUTSTANDING)
+ printf(" NATTCH");
+ if (option & BIGGEST)
+ printf(" SEGSZ");
+ if (option & PID)
+ printf(" CPID LPID");
+ if (option & TIME)
+ printf(" ATIME DTIME CTIME");
+ printf("\nShared Memory:\n");
+ { /* XXX */
+
+ ic.ipcs_magic = IPCS_MAGIC;
+ ic.ipcs_op = IPCS_SHM_ITER;
+ ic.ipcs_cursor = 0; /* start */
+ ic.ipcs_datalen = sizeof(*shmptr);
+ ic.ipcs_data = shmptr;
+ memset(shmptr, 0, sizeof(*shmptr));
+
+ while(!(sysctlbyname(IPCS_SHM_SYSCTL, &ic, &ic_size, &ic, ic_size))) {
+ ic.ipcs_data = shmptr; /* xnu workaround */
+
+ if (shmptr->shm_perm.mode & 0x0800) {
+ char atime_buf[100], dtime_buf[100],
+ ctime_buf[100];
+
+ cvt_time(shmptr->shm_atime, atime_buf);
+ cvt_time(shmptr->shm_dtime, dtime_buf);
+ cvt_time(shmptr->shm_ctime, ctime_buf);
+
+ printf("m %6d 0x%08x %s %8s %8s",
+ IXSEQ_TO_IPCID((ic.ipcs_cursor-1), shmptr->shm_perm),
+ (int)shmptr->shm_perm._key,
+ fmt_perm(shmptr->shm_perm.mode, 'w'),
+ user_from_uid(shmptr->shm_perm.uid, 0),
+ group_from_gid(shmptr->shm_perm.gid, 0));
+
+ if (option & CREATOR)
+ printf(" %8s %8s",
+ user_from_uid(shmptr->shm_perm.cuid, 0),
+ group_from_gid(shmptr->shm_perm.cgid, 0));
+
+ if (option & OUTSTANDING)
+ printf(" %6d",
+ shmptr->shm_nattch);
+
+ if (option & BIGGEST)
+ printf(" %6ld",
+ shmptr->shm_segsz);
+
+ if (option & PID)
+ printf(" %6d %6d",
+ shmptr->shm_cpid,
+ shmptr->shm_lpid);
+
+ if (option & TIME)
+ printf(" %s %s %s",
+ atime_buf,
+ dtime_buf,
+ ctime_buf);
+
+ printf("\n");
+ }
+ memset(shmptr, 0, sizeof(*shmptr));
+ errno = 0;
+ }
+
+ if (errno != ENOENT && errno != ERANGE) {
+ if (errno != EPERM) {
+ errx(1, "sysctlbyname(IPCS_SHM_SYSCTL, op=ITER, &ic, &%ld) datalen=%d failed:%s\n",
+ sizeof(ic), ic.ipcs_datalen, strerror(errno));
+ } else
+ errx(1, "sysctlbyname: %s", strerror(errno));
+ }
+ } /* XXX */
+ printf("\n");
+ }
+ }
+else
+ if (display & (SHMINFO | SHMTOTAL)) {
+ errx(1, "%s", "SVID shared memory facility not configured in the system\n");
+ }
+
+ if ((display & (SEMINFO | SEMTOTAL))) {
+ if (display & SEMTOTAL) {
+ struct IPCS_command ic;
+ struct seminfo seminfo;
+ size_t ic_size = sizeof(ic);
+
+ ic.ipcs_magic = IPCS_MAGIC;
+ ic.ipcs_op = IPCS_SEM_CONF;
+ ic.ipcs_cursor = 0; /* 0 for fw. compat. */
+ ic.ipcs_data = &seminfo;
+ ic.ipcs_datalen = sizeof(seminfo);
+
+ if (sysctlbyname(IPCS_SEM_SYSCTL, &ic, &ic_size, &ic, ic_size)) {
+ if (errno != EPERM) {
+ char buffer[1024];
+ snprintf(buffer, 1024, "sysctlbyname(IPCS_SEM_SYSCTL, op=CONF, &ic, &%ld) datalen=%d",
+ sizeof(ic), ic.ipcs_datalen);
+ perror(buffer);
+ } else
+ perror("sysctlbyname IPCS_SEM_SYSCTL/SEM_CONF");
+ }
+
+ printf("seminfo:\n");
+ printf("\tsemmap: %6d\t(# of entries in semaphore map)\n",
+ seminfo.semmap);
+ printf("\tsemmni: %6d\t(# of semaphore identifiers)\n",
+ seminfo.semmni);
+ printf("\tsemmns: %6d\t(# of semaphores in system)\n",
+ seminfo.semmns);
+ printf("\tsemmnu: %6d\t(# of undo structures in system)\n",
+ seminfo.semmnu);
+ printf("\tsemmsl: %6d\t(max # of semaphores per id)\n",
+ seminfo.semmsl);
+ printf("\tsemopm: %6d\t(max # of operations per semop call)\n",
+ seminfo.semopm);
+ printf("\tsemume: %6d\t(max # of undo entries per process)\n",
+ seminfo.semume);
+ printf("\tsemusz: %6d\t(size in bytes of undo structure)\n",
+ seminfo.semusz);
+ printf("\tsemvmx: %6d\t(semaphore maximum value)\n",
+ seminfo.semvmx);
+ printf("\tsemaem: %6d\t(adjust on exit max value)\n\n",
+ seminfo.semaem);
+ }
+ if (display & SEMINFO) {
+ struct IPCS_command ic;
+ struct __semid_ds_new ds;
+ struct __semid_ds_new *semaptr = &ds;
+ size_t ic_size = sizeof(ic);
+
+ printf("T ID KEY MODE OWNER GROUP");
+ if (option & CREATOR)
+ printf(" CREATOR CGROUP");
+ if (option & BIGGEST)
+ printf(" NSEMS");
+ if (option & TIME)
+ printf(" OTIME CTIME");
+ printf("\nSemaphores:\n");
+
+ ic.ipcs_magic = IPCS_MAGIC;
+ ic.ipcs_op = IPCS_SEM_ITER;
+ ic.ipcs_cursor = 0; /* start */
+ ic.ipcs_datalen = sizeof(*semaptr);
+ ic.ipcs_data = semaptr;
+
+ memset(semaptr, 0, sizeof(*semaptr));
+
+ while(!(sysctlbyname(IPCS_SEM_SYSCTL, &ic, &ic_size, &ic, ic_size))) {
+ ic.ipcs_data = semaptr; /* xnu workaround */
+
+ if ((semaptr->sem_perm.mode & SEM_ALLOC) != 0) {
+ char ctime_buf[100], otime_buf[100];
+
+ cvt_time(semaptr->sem_otime, otime_buf);
+ cvt_time(semaptr->sem_ctime, ctime_buf);
+
+ printf("s %6d 0x%08x %s %8s %8s",
+ IXSEQ_TO_IPCID((ic.ipcs_cursor-1), semaptr->sem_perm),
+ (int)semaptr->sem_perm._key,
+ fmt_perm(semaptr->sem_perm.mode, 'a'),
+ user_from_uid(semaptr->sem_perm.uid, 0),
+ group_from_gid(semaptr->sem_perm.gid, 0));
+
+ if (option & CREATOR)
+ printf(" %8s %8s",
+ user_from_uid(semaptr->sem_perm.cuid, 0),
+ group_from_gid(semaptr->sem_perm.cgid, 0));
+
+ if (option & BIGGEST)
+ printf(" %6d",
+ semaptr->sem_nsems);
+
+ if (option & TIME)
+ printf(" %s %s",
+ otime_buf,
+ ctime_buf);
+
+ printf("\n");
+ }
+ memset(semaptr, 0, sizeof(*semaptr));
+ errno = 0;
+ }
+
+ if (errno != ENOENT && errno != ERANGE) {
+ if (errno != EPERM) {
+ errx(1, "sysctlbyname(IPCS_SEM_SYSCTL/ITER, op=ITER, &ic, &%ld) datalen=%d failed: %s\n",
+ sizeof(ic), ic.ipcs_datalen, strerror(errno));
+ } else
+ errx(1, "sysctlbyname: IPCS_SEM_SYSCTL %s", strerror(errno));
+ }
+ printf("\n");
+ }
+ } else
+ if (display & (SEMINFO | SEMTOTAL)) {
+ errx(1, "%s", "SVID semaphores facility not configured in the system\n");
+ }
+
+ exit(exit_val);
+}
generated by cgit v1.2.3-56-ge451 (git 2.39.0) at 2024-06-01 22:51:46 +0000