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/* $NetBSD: ipcs.c,v 1.42 2009/01/18 01:10:34 lukem Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Simon Burge.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*
* 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.
*
* 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 <sys/param.h>
#include <sys/sysctl.h>
#include <sys/inttypes.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <sys/msg.h>
#include <err.h>
#include <fcntl.h>
#include <grp.h>
#include <kvm.h>
#include <limits.h>
#include <nlist.h>
#include <paths.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#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 char *core = NULL, *namelist = NULL;
static int display = 0;
static int option = 0;
static void cvt_time(time_t, char *, size_t);
static char *fmt_perm(u_short);
static void ipcs_kvm(void);
static void msg_sysctl(void);
static void sem_sysctl(void);
static void shm_sysctl(void);
static void show_msginfo(time_t, time_t, time_t, int, u_int64_t, mode_t,
uid_t, gid_t, uid_t, gid_t, u_int64_t, u_int64_t, u_int64_t, pid_t, pid_t);
static void show_msginfo_hdr(void);
static void show_msgtotal(struct msginfo *);
static void show_seminfo_hdr(void);
static void show_seminfo(time_t, time_t, int, u_int64_t, mode_t, uid_t,
gid_t, uid_t, gid_t, int16_t);
static void show_semtotal(struct seminfo *);
static void show_shminfo(time_t, time_t, time_t, int, u_int64_t, mode_t,
uid_t, gid_t, uid_t, gid_t, u_int32_t, u_int64_t, pid_t, pid_t);
static void show_shminfo_hdr(void);
static void show_shmtotal(struct shminfo *);
static void usage(void) __dead;
static void unconfsem(void);
static void unconfmsg(void);
static void unconfshm(void);
static void
unconfsem(void)
{
warnx("SVID semaphores facility not configured in the system");
}
static void
unconfmsg(void)
{
warnx("SVID messages facility not configured in the system");
}
static void
unconfshm(void)
{
warnx("SVID shared memory facility not configured in the system");
}
static char *
fmt_perm(u_short mode)
{
static char buffer[12];
buffer[0] = '-';
buffer[1] = '-';
buffer[2] = ((mode & 0400) ? 'r' : '-');
buffer[3] = ((mode & 0200) ? 'w' : '-');
buffer[4] = ((mode & 0100) ? 'a' : '-');
buffer[5] = ((mode & 0040) ? 'r' : '-');
buffer[6] = ((mode & 0020) ? 'w' : '-');
buffer[7] = ((mode & 0010) ? 'a' : '-');
buffer[8] = ((mode & 0004) ? 'r' : '-');
buffer[9] = ((mode & 0002) ? 'w' : '-');
buffer[10] = ((mode & 0001) ? 'a' : '-');
buffer[11] = '\0';
return (&buffer[0]);
}
static void
cvt_time(time_t t, char *buf, size_t buflen)
{
struct tm *tm;
if (t == 0)
(void)strlcpy(buf, "no-entry", buflen);
else {
tm = localtime(&t);
(void)snprintf(buf, buflen, "%2d:%02d:%02d",
tm->tm_hour, tm->tm_min, tm->tm_sec);
}
}
int
main(int argc, char *argv[])
{
int i;
time_t now;
while ((i = getopt(argc, argv, "MmQqSsabC:cN:optT")) != -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':
core = optarg;
break;
case 'c':
option |= CREATOR;
break;
case 'N':
namelist = optarg;
break;
case 'o':
option |= OUTSTANDING;
break;
case 'p':
option |= PID;
break;
case 't':
option |= TIME;
break;
default:
usage();
}
if (argc - optind > 0)
usage();
(void)time(&now);
(void)printf("IPC status from %s as of %s\n",
/* and extra \n from ctime(3) */
core == NULL ? "<running system>" : core, ctime(&now));
if (display == 0)
display = SHMINFO | MSGINFO | SEMINFO;
if (core == NULL) {
if (display & (MSGINFO | MSGTOTAL))
msg_sysctl();
if (display & (SHMINFO | SHMTOTAL))
shm_sysctl();
if (display & (SEMINFO | SEMTOTAL))
sem_sysctl();
} else
ipcs_kvm();
return 0;
}
static void
show_msgtotal(struct msginfo *msginfo)
{
(void)printf("msginfo:\n");
(void)printf("\tmsgmax: %6d\t(max characters in a message)\n",
msginfo->msgmax);
(void)printf("\tmsgmni: %6d\t(# of message queues)\n",
msginfo->msgmni);
(void)printf("\tmsgmnb: %6d\t(max characters in a message queue)\n",
msginfo->msgmnb);
(void)printf("\tmsgtql: %6d\t(max # of messages in system)\n",
msginfo->msgtql);
(void)printf("\tmsgssz: %6d\t(size of a message segment)\n",
msginfo->msgssz);
(void)printf("\tmsgseg: %6d\t(# of message segments in system)\n\n",
msginfo->msgseg);
}
static void
show_shmtotal(struct shminfo *shminfo)
{
(void)printf("shminfo:\n");
(void)printf("\tshmmax: %" PRIu64 "\t(max shared memory segment size)\n",
shminfo->shmmax);
(void)printf("\tshmmin: %7d\t(min shared memory segment size)\n",
shminfo->shmmin);
(void)printf("\tshmmni: %7d\t(max number of shared memory identifiers)\n",
shminfo->shmmni);
(void)printf("\tshmseg: %7d\t(max shared memory segments per process)\n",
shminfo->shmseg);
(void)printf("\tshmall: %7d\t(max amount of shared memory in pages)\n\n",
shminfo->shmall);
}
static void
show_semtotal(struct seminfo *seminfo)
{
(void)printf("seminfo:\n");
(void)printf("\tsemmap: %6d\t(# of entries in semaphore map)\n",
seminfo->semmap);
(void)printf("\tsemmni: %6d\t(# of semaphore identifiers)\n",
seminfo->semmni);
(void)printf("\tsemmns: %6d\t(# of semaphores in system)\n",
seminfo->semmns);
(void)printf("\tsemmnu: %6d\t(# of undo structures in system)\n",
seminfo->semmnu);
(void)printf("\tsemmsl: %6d\t(max # of semaphores per id)\n",
seminfo->semmsl);
(void)printf("\tsemopm: %6d\t(max # of operations per semop call)\n",
seminfo->semopm);
(void)printf("\tsemume: %6d\t(max # of undo entries per process)\n",
seminfo->semume);
(void)printf("\tsemusz: %6d\t(size in bytes of undo structure)\n",
seminfo->semusz);
(void)printf("\tsemvmx: %6d\t(semaphore maximum value)\n",
seminfo->semvmx);
(void)printf("\tsemaem: %6d\t(adjust on exit max value)\n\n",
seminfo->semaem);
}
static void
show_msginfo_hdr(void)
{
(void)printf("Message Queues:\n");
(void)printf("T ID KEY MODE OWNER GROUP");
if (option & CREATOR)
(void)printf(" CREATOR CGROUP");
if (option & OUTSTANDING)
(void)printf(" CBYTES QNUM");
if (option & BIGGEST)
(void)printf(" QBYTES");
if (option & PID)
(void)printf(" LSPID LRPID");
if (option & TIME)
(void)printf(" STIME RTIME CTIME");
(void)printf("\n");
}
static void
show_msginfo(time_t s_time, time_t r_time, time_t c_time, int ipcid,
u_int64_t key,
mode_t mode, uid_t uid, gid_t gid, uid_t cuid, gid_t cgid,
u_int64_t cbytes, u_int64_t qnum, u_int64_t qbytes, pid_t lspid,
pid_t lrpid)
{
char s_time_buf[100], r_time_buf[100], c_time_buf[100];
if (option & TIME) {
cvt_time(s_time, s_time_buf, sizeof(s_time_buf));
cvt_time(r_time, r_time_buf, sizeof(r_time_buf));
cvt_time(c_time, c_time_buf, sizeof(c_time_buf));
}
(void)printf("q %9d %10lld %s %8s %8s", ipcid, (long long)key, fmt_perm(mode),
user_from_uid(uid, 0), group_from_gid(gid, 0));
if (option & CREATOR)
(void)printf(" %8s %8s", user_from_uid(cuid, 0),
group_from_gid(cgid, 0));
if (option & OUTSTANDING)
(void)printf(" %6lld %5lld", (long long)cbytes, (long long)qnum);
if (option & BIGGEST)
(void)printf(" %6lld", (long long)qbytes);
if (option & PID)
(void)printf(" %5d %5d", lspid, lrpid);
if (option & TIME)
(void)printf(" %s %s %s", s_time_buf, r_time_buf, c_time_buf);
(void)printf("\n");
}
static void
show_shminfo_hdr(void)
{
(void)printf("Shared Memory:\n");
(void)printf("T ID KEY MODE OWNER GROUP");
if (option & CREATOR)
(void)printf(" CREATOR CGROUP");
if (option & OUTSTANDING)
(void)printf(" NATTCH");
if (option & BIGGEST)
(void)printf(" SEGSZ");
if (option & PID)
(void)printf(" CPID LPID");
if (option & TIME)
(void)printf(" ATIME DTIME CTIME");
(void)printf("\n");
}
static void
show_shminfo(time_t atime, time_t dtime, time_t c_time, int ipcid, u_int64_t key,
mode_t mode, uid_t uid, gid_t gid, uid_t cuid, gid_t cgid,
u_int32_t nattch, u_int64_t segsz, pid_t cpid, pid_t lpid)
{
char atime_buf[100], dtime_buf[100], c_time_buf[100];
if (option & TIME) {
cvt_time(atime, atime_buf, sizeof(atime_buf));
cvt_time(dtime, dtime_buf, sizeof(dtime_buf));
cvt_time(c_time, c_time_buf, sizeof(c_time_buf));
}
(void)printf("m %9d %10lld %s %8s %8s", ipcid, (long long)key, fmt_perm(mode),
user_from_uid(uid, 0), group_from_gid(gid, 0));
if (option & CREATOR)
(void)printf(" %8s %8s", user_from_uid(cuid, 0),
group_from_gid(cgid, 0));
if (option & OUTSTANDING)
(void)printf(" %6d", nattch);
if (option & BIGGEST)
(void)printf(" %7llu", (long long)segsz);
if (option & PID)
(void)printf(" %5d %5d", cpid, lpid);
if (option & TIME)
(void)printf(" %s %s %s",
atime_buf,
dtime_buf,
c_time_buf);
(void)printf("\n");
}
static void
show_seminfo_hdr(void)
{
(void)printf("Semaphores:\n");
(void)printf("T ID KEY MODE OWNER GROUP");
if (option & CREATOR)
(void)printf(" CREATOR CGROUP");
if (option & BIGGEST)
(void)printf(" NSEMS");
if (option & TIME)
(void)printf(" OTIME CTIME");
(void)printf("\n");
}
static void
show_seminfo(time_t otime, time_t c_time, int ipcid, u_int64_t key, mode_t mode,
uid_t uid, gid_t gid, uid_t cuid, gid_t cgid, int16_t nsems)
{
char c_time_buf[100], otime_buf[100];
if (option & TIME) {
cvt_time(otime, otime_buf, sizeof(otime_buf));
cvt_time(c_time, c_time_buf, sizeof(c_time_buf));
}
(void)printf("s %9d %10lld %s %8s %8s", ipcid, (long long)key, fmt_perm(mode),
user_from_uid(uid, 0), group_from_gid(gid, 0));
if (option & CREATOR)
(void)printf(" %8s %8s", user_from_uid(cuid, 0),
group_from_gid(cgid, 0));
if (option & BIGGEST)
(void)printf(" %5d", nsems);
if (option & TIME)
(void)printf(" %s %s", otime_buf, c_time_buf);
(void)printf("\n");
}
static void
msg_sysctl(void)
{
struct msg_sysctl_info *msgsi;
void *buf;
int mib[4];
size_t len;
int i, valid;
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVIPC;
mib[2] = KERN_SYSVIPC_MSG;
len = sizeof(valid);
if (sysctl(mib, 3, &valid, &len, NULL, 0) < 0) {
warn("sysctl(KERN_SYSVIPC_MSG)");
return;
}
if (!valid) {
unconfmsg();
return;
}
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVIPC;
mib[2] = KERN_SYSVIPC_INFO;
mib[3] = KERN_SYSVIPC_MSG_INFO;
if (!(display & MSGINFO)) {
/* totals only */
len = sizeof(struct msginfo);
} else {
if (sysctl(mib, 4, NULL, &len, NULL, 0) < 0) {
warn("sysctl(KERN_SYSVIPC_MSG_INFO)");
return;
}
}
if ((buf = malloc(len)) == NULL)
err(1, "malloc");
msgsi = (struct msg_sysctl_info *)buf;
if (sysctl(mib, 4, msgsi, &len, NULL, 0) < 0) {
warn("sysctl(KERN_SYSVIPC_MSG_INFO)");
goto done;
}
if (display & MSGTOTAL)
show_msgtotal(&msgsi->msginfo);
if (display & MSGINFO) {
show_msginfo_hdr();
for (i = 0; i < msgsi->msginfo.msgmni; i++) {
struct msgid_ds_sysctl *msqptr = &msgsi->msgids[i];
if (msqptr->msg_qbytes != 0)
show_msginfo(msqptr->msg_stime,
msqptr->msg_rtime,
msqptr->msg_ctime,
IXSEQ_TO_IPCID(i, msqptr->msg_perm),
msqptr->msg_perm._key,
msqptr->msg_perm.mode,
msqptr->msg_perm.uid,
msqptr->msg_perm.gid,
msqptr->msg_perm.cuid,
msqptr->msg_perm.cgid,
msqptr->_msg_cbytes,
msqptr->msg_qnum,
msqptr->msg_qbytes,
msqptr->msg_lspid,
msqptr->msg_lrpid);
}
(void)printf("\n");
}
done:
free(buf);
}
static void
shm_sysctl(void)
{
struct shm_sysctl_info *shmsi;
void *buf;
int mib[4];
size_t len;
uint32_t i;
long valid;
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVIPC;
mib[2] = KERN_SYSVIPC_SHM;
len = sizeof(valid);
if (sysctl(mib, 3, &valid, &len, NULL, 0) < 0) {
warn("sysctl(KERN_SYSVIPC_SHM)");
return;
}
if (!valid) {
unconfshm();
return;
}
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVIPC;
mib[2] = KERN_SYSVIPC_INFO;
mib[3] = KERN_SYSVIPC_SHM_INFO;
if (!(display & SHMINFO)) {
/* totals only */
len = sizeof(struct shminfo);
} else {
if (sysctl(mib, 4, NULL, &len, NULL, 0) < 0) {
warn("sysctl(KERN_SYSVIPC_SHM_INFO)");
return;
}
}
if ((buf = malloc(len)) == NULL)
err(1, "malloc");
shmsi = (struct shm_sysctl_info *)buf;
if (sysctl(mib, 4, shmsi, &len, NULL, 0) < 0) {
warn("sysctl(KERN_SYSVIPC_SHM_INFO)");
goto done;
}
if (display & SHMTOTAL)
show_shmtotal(&shmsi->shminfo);
if (display & SHMINFO) {
show_shminfo_hdr();
for (i = 0; i < shmsi->shminfo.shmmni; i++) {
struct shmid_ds_sysctl *shmptr = &shmsi->shmids[i];
if (shmptr->shm_perm.mode & 0x0800)
show_shminfo(shmptr->shm_atime,
shmptr->shm_dtime,
shmptr->shm_ctime,
IXSEQ_TO_IPCID(i, shmptr->shm_perm),
shmptr->shm_perm._key,
shmptr->shm_perm.mode,
shmptr->shm_perm.uid,
shmptr->shm_perm.gid,
shmptr->shm_perm.cuid,
shmptr->shm_perm.cgid,
shmptr->shm_nattch,
shmptr->shm_segsz,
shmptr->shm_cpid,
shmptr->shm_lpid);
}
(void)printf("\n");
}
done:
free(buf);
}
static void
sem_sysctl(void)
{
struct sem_sysctl_info *semsi;
void *buf;
int mib[4];
size_t len;
int i, valid;
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVIPC;
mib[2] = KERN_SYSVIPC_SEM;
len = sizeof(valid);
if (sysctl(mib, 3, &valid, &len, NULL, 0) < 0) {
warn("sysctl(KERN_SYSVIPC_SEM)");
return;
}
if (!valid) {
unconfsem();
return;
}
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVIPC;
mib[2] = KERN_SYSVIPC_INFO;
mib[3] = KERN_SYSVIPC_SEM_INFO;
if (!(display & SEMINFO)) {
/* totals only */
len = sizeof(struct seminfo);
} else {
if (sysctl(mib, 4, NULL, &len, NULL, 0) < 0) {
warn("sysctl(KERN_SYSVIPC_SEM_INFO)");
return;
}
}
if ((buf = malloc(len)) == NULL)
err(1, "malloc");
semsi = (struct sem_sysctl_info *)buf;
if (sysctl(mib, 4, semsi, &len, NULL, 0) < 0) {
warn("sysctl(KERN_SYSVIPC_SEM_INFO)");
goto done;
}
if (display & SEMTOTAL)
show_semtotal(&semsi->seminfo);
if (display & SEMINFO) {
show_seminfo_hdr();
for (i = 0; i < semsi->seminfo.semmni; i++) {
struct semid_ds_sysctl *semaptr = &semsi->semids[i];
if ((semaptr->sem_perm.mode & SEM_ALLOC) != 0)
show_seminfo(semaptr->sem_otime,
semaptr->sem_ctime,
IXSEQ_TO_IPCID(i, semaptr->sem_perm),
semaptr->sem_perm._key,
semaptr->sem_perm.mode,
semaptr->sem_perm.uid,
semaptr->sem_perm.gid,
semaptr->sem_perm.cuid,
semaptr->sem_perm.cgid,
semaptr->sem_nsems);
}
(void)printf("\n");
}
done:
free(buf);
}
static struct nlist symbols[] = {
{ .n_name = "_sema" },
#define X_SEMA 0
{ .n_name = "_seminfo" },
#define X_SEMINFO 1
{ .n_name = "_semu" },
#define X_SEMU 2
{ .n_name = "_msginfo" },
#define X_MSGINFO 3
{ .n_name = "_msqids" },
#define X_MSQIDS 4
{ .n_name = "_shminfo" },
#define X_SHMINFO 5
{ .n_name = "_shmsegs" },
#define X_SHMSEGS 6
{ .n_name = NULL }
};
static void
ipcs_kvm(void)
{
struct msginfo msginfo;
struct msqid_ds *msqids;
struct seminfo seminfo;
struct semid_ds *sema;
struct shminfo shminfo;
struct shmid_ds *shmsegs;
kvm_t *kd;
char errbuf[_POSIX2_LINE_MAX];
int32_t i;
uint32_t u;
if ((kd = kvm_openfiles(namelist, core, NULL, O_RDONLY,
errbuf)) == NULL)
errx(1, "can't open kvm: %s", errbuf);
switch (kvm_nlist(kd, symbols)) {
case 0:
break;
case -1:
errx(1, "%s: unable to read symbol table.",
namelist == NULL ? _PATH_UNIX : namelist);
/* NOTREACHED */
default:
#ifdef notdef /* they'll be told more civilly later */
warnx("nlist failed");
for (i = 0; symbols[i].n_name != NULL; i++)
if (symbols[i].n_value == 0)
warnx("symbol %s not found",
symbols[i].n_name);
#endif
break;
}
if ((display & (MSGINFO | MSGTOTAL)) &&
(kvm_read(kd, symbols[X_MSGINFO].n_value,
&msginfo, sizeof(msginfo)) == sizeof(msginfo))) {
if (display & MSGTOTAL)
show_msgtotal(&msginfo);
if (display & MSGINFO) {
struct msqid_ds *xmsqids;
if (kvm_read(kd, symbols[X_MSQIDS].n_value,
&msqids, sizeof(msqids)) != sizeof(msqids))
errx(1, "kvm_read (%s): %s",
symbols[X_MSQIDS].n_name, kvm_geterr(kd));
xmsqids = malloc(sizeof(struct msqid_ds) *
msginfo.msgmni);
if ((size_t)kvm_read(kd, (u_long)msqids, xmsqids,
sizeof(struct msqid_ds) * msginfo.msgmni) !=
sizeof(struct msqid_ds) * msginfo.msgmni)
errx(1, "kvm_read (msqids): %s",
kvm_geterr(kd));
show_msginfo_hdr();
for (i = 0; i < msginfo.msgmni; i++) {
struct msqid_ds *msqptr = &xmsqids[i];
if (msqptr->msg_qbytes != 0)
show_msginfo(msqptr->msg_stime,
msqptr->msg_rtime,
msqptr->msg_ctime,
IXSEQ_TO_IPCID(i, msqptr->msg_perm),
(u_int64_t)msqptr->msg_perm._key,
msqptr->msg_perm.mode,
msqptr->msg_perm.uid,
msqptr->msg_perm.gid,
msqptr->msg_perm.cuid,
msqptr->msg_perm.cgid,
(u_int64_t)msqptr->_msg_cbytes,
(u_int64_t)msqptr->msg_qnum,
(u_int64_t)msqptr->msg_qbytes,
msqptr->msg_lspid,
msqptr->msg_lrpid);
}
(void)printf("\n");
free(xmsqids);
}
} else
if (display & (MSGINFO | MSGTOTAL))
unconfmsg();
if ((display & (SHMINFO | SHMTOTAL)) &&
(kvm_read(kd, symbols[X_SHMINFO].n_value, &shminfo,
sizeof(shminfo)) == sizeof(shminfo))) {
if (display & SHMTOTAL)
show_shmtotal(&shminfo);
if (display & SHMINFO) {
struct shmid_ds *xshmids;
if (kvm_read(kd, symbols[X_SHMSEGS].n_value, &shmsegs,
sizeof(shmsegs)) != sizeof(shmsegs))
errx(1, "kvm_read (%s): %s",
symbols[X_SHMSEGS].n_name, kvm_geterr(kd));
xshmids = malloc(sizeof(struct shmid_ds) *
shminfo.shmmni);
if ((size_t)kvm_read(kd, (u_long)shmsegs, xshmids,
sizeof(struct shmid_ds) * shminfo.shmmni) !=
sizeof(struct shmid_ds) * shminfo.shmmni)
errx(1, "kvm_read (shmsegs): %s",
kvm_geterr(kd));
show_shminfo_hdr();
for (u = 0; u < shminfo.shmmni; u++) {
struct shmid_ds *shmptr = &xshmids[u];
if (shmptr->shm_perm.mode & 0x0800)
show_shminfo(shmptr->shm_atime,
shmptr->shm_dtime,
shmptr->shm_ctime,
IXSEQ_TO_IPCID(u, shmptr->shm_perm),
(u_int64_t)shmptr->shm_perm._key,
shmptr->shm_perm.mode,
shmptr->shm_perm.uid,
shmptr->shm_perm.gid,
shmptr->shm_perm.cuid,
shmptr->shm_perm.cgid,
shmptr->shm_nattch,
(u_int64_t)shmptr->shm_segsz,
shmptr->shm_cpid,
shmptr->shm_lpid);
}
(void)printf("\n");
free(xshmids);
}
} else
if (display & (SHMINFO | SHMTOTAL))
unconfshm();
if ((display & (SEMINFO | SEMTOTAL)) &&
(kvm_read(kd, symbols[X_SEMINFO].n_value, &seminfo,
sizeof(seminfo)) == sizeof(seminfo))) {
struct semid_ds *xsema;
if (display & SEMTOTAL)
show_semtotal(&seminfo);
if (display & SEMINFO) {
if (kvm_read(kd, symbols[X_SEMA].n_value, &sema,
sizeof(sema)) != sizeof(sema))
errx(1, "kvm_read (%s): %s",
symbols[X_SEMA].n_name, kvm_geterr(kd));
xsema = malloc(sizeof(struct semid_ds) *
seminfo.semmni);
if ((size_t)kvm_read(kd, (u_long)sema, xsema,
sizeof(struct semid_ds) * seminfo.semmni) !=
sizeof(struct semid_ds) * seminfo.semmni)
errx(1, "kvm_read (sema): %s",
kvm_geterr(kd));
show_seminfo_hdr();
for (i = 0; i < seminfo.semmni; i++) {
struct semid_ds *semaptr = &xsema[i];
if ((semaptr->sem_perm.mode & SEM_ALLOC) != 0)
show_seminfo(semaptr->sem_otime,
semaptr->sem_ctime,
IXSEQ_TO_IPCID(i, semaptr->sem_perm),
(u_int64_t)semaptr->sem_perm._key,
semaptr->sem_perm.mode,
semaptr->sem_perm.uid,
semaptr->sem_perm.gid,
semaptr->sem_perm.cuid,
semaptr->sem_perm.cgid,
semaptr->sem_nsems);
}
(void)printf("\n");
free(xsema);
}
} else
if (display & (SEMINFO | SEMTOTAL))
unconfsem();
(void)kvm_close(kd);
}
static void
usage(void)
{
(void)fprintf(stderr,
"Usage: %s [-abcmopqstMQST] [-C corefile] [-N namelist]\n",
getprogname());
exit(1);
}
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