File: [local] / src / usr.bin / ipcs / ipcs.c (download)
Revision 1.19, Tue Dec 17 23:11:32 2002 UTC (21 years, 5 months ago) by millert
Branch: MAIN
CVS Tags: OPENBSD_3_3_BASE, OPENBSD_3_3
Changes since 1.18: +70 -60 lines
Make SysV-style shared memory and semaphore limits sysctl'able.
Instead of allocating a static amount of memory for the data
structures via valloc() in allocsys(), allocate things dynamically
using pool(9) when possible and malloc(9) when not. The various
members of struct seminfo and struct shminfo are in kern.seminfo
and kern.shminfo respectively (not all members of kern.seminfo are
changable).
The data structures used still leave something to be desired but
things are not made worse in that respect by this commit.
|
/* $OpenBSD: ipcs.c,v 1.19 2002/12/17 23:11:32 millert Exp $ */
/* $NetBSD: ipcs.c,v 1.25 2000/06/16 03:58:20 simonb 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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.
* 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/param.h>
#include <sys/sysctl.h>
#define _KERNEL /* XXX */
#include <sys/ipc.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <sys/msg.h>
#undef _KERNEL
#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>
void cvt_time(time_t, char *, size_t);
char *fmt_perm(mode_t);
void ipcs_kvm(void);
int main(int, char **);
void msg_sysctl(void);
void sem_sysctl(void);
void shm_sysctl(void);
void show_msginfo(time_t, time_t, time_t, int, key_t, mode_t, uid_t,
gid_t, uid_t, gid_t, u_long, u_long, u_long, pid_t, pid_t);
void show_msginfo_hdr(void);
void show_msgtotal(struct msginfo *);
void show_seminfo_hdr(void);
void show_seminfo(time_t, time_t, int, key_t, mode_t, uid_t, gid_t,
uid_t, gid_t, int16_t);
void show_semtotal(struct seminfo *);
void show_shminfo(time_t, time_t, time_t, int, key_t, mode_t, uid_t,
gid_t, uid_t, gid_t, u_int32_t, int, pid_t, pid_t);
void show_shminfo_hdr(void);
void show_shmtotal(struct shminfo *);
__dead void usage(void);
char *
fmt_perm(mode_t 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]);
}
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);
}
}
#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
char *core = NULL, *namelist = NULL;
int display = SHMINFO | MSGINFO | SEMINFO;
int option = 0;
int
main(int argc, char **argv)
{
int ch;
while ((ch = getopt(argc, argv, "MmQqSsabC:cN:optT")) != -1)
switch (ch) {
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();
if (namelist == NULL && core == NULL) {
if (display & (MSGINFO | MSGTOTAL))
msg_sysctl();
if (display & (SHMINFO | SHMTOTAL))
shm_sysctl();
if (display & (SEMINFO | SEMTOTAL))
sem_sysctl();
} else
ipcs_kvm();
exit(0);
}
void
show_msgtotal(struct msginfo *msginfo)
{
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);
}
void
show_shmtotal(struct shminfo *shminfo)
{
printf("shminfo:\n");
printf("\tshmmax: %7d\t(max shared memory segment size)\n",
shminfo->shmmax);
printf("\tshmmin: %7d\t(min shared memory segment size)\n",
shminfo->shmmin);
printf("\tshmmni: %7d\t(max number of shared memory identifiers)\n",
shminfo->shmmni);
printf("\tshmseg: %7d\t(max shared memory segments per process)\n",
shminfo->shmseg);
printf("\tshmall: %7d\t(max amount of shared memory in pages)\n\n",
shminfo->shmall);
}
void
show_semtotal(struct seminfo *seminfo)
{
printf("seminfo:\n");
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);
}
void
show_msginfo_hdr(void)
{
printf("Message Queues:\n");
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("\n");
}
void
show_msginfo(time_t stime, time_t rtime, time_t ctime, int ipcid, key_t key,
mode_t mode, uid_t uid, gid_t gid, uid_t cuid, gid_t cgid,
u_long cbytes, u_long qnum, u_long qbytes, pid_t lspid,
pid_t lrpid)
{
char stime_buf[100], rtime_buf[100], ctime_buf[100];
if (option & TIME) {
cvt_time(stime, stime_buf, sizeof(stime_buf));
cvt_time(rtime, rtime_buf, sizeof(rtime_buf));
cvt_time(ctime, ctime_buf, sizeof(ctime_buf));
}
printf("q %8d %10ld %s %8s %8s", ipcid, key, fmt_perm(mode),
user_from_uid(uid, 0), group_from_gid(gid, 0));
if (option & CREATOR)
printf(" %8s %8s", user_from_uid(cuid, 0),
group_from_gid(cgid, 0));
if (option & OUTSTANDING)
printf(" %6lu %5lu", cbytes, qnum);
if (option & BIGGEST)
printf(" %6lu", qbytes);
if (option & PID)
printf(" %5ld %5ld", (long)lspid, (long)lrpid);
if (option & TIME)
printf(" %s %s %s", stime_buf, rtime_buf, ctime_buf);
printf("\n");
}
void
show_shminfo_hdr(void)
{
printf("Shared Memory:\n");
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("\n");
}
void
show_shminfo(time_t atime, time_t dtime, time_t ctime, int ipcid, key_t key,
mode_t mode, uid_t uid, gid_t gid, uid_t cuid, gid_t cgid,
u_int32_t nattch, int segsz, pid_t cpid, pid_t lpid)
{
char atime_buf[100], dtime_buf[100], ctime_buf[100];
if (option & TIME) {
cvt_time(atime, atime_buf, sizeof(atime_buf));
cvt_time(dtime, dtime_buf, sizeof(dtime_buf));
cvt_time(ctime, ctime_buf, sizeof(ctime_buf));
}
printf("m %8d %10ld %s %8s %8s", ipcid, key, fmt_perm(mode),
user_from_uid(uid, 0), group_from_gid(gid, 0));
if (option & CREATOR)
printf(" %8s %8s", user_from_uid(cuid, 0),
group_from_gid(cgid, 0));
if (option & OUTSTANDING)
printf(" %6d", nattch);
if (option & BIGGEST)
printf(" %7d", segsz);
if (option & PID)
printf(" %5d %5d", cpid, lpid);
if (option & TIME)
printf(" %s %s %s",
atime_buf,
dtime_buf,
ctime_buf);
printf("\n");
}
void
show_seminfo_hdr(void)
{
printf("Semaphores:\n");
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("\n");
}
void
show_seminfo(time_t otime, time_t ctime, int ipcid, key_t key, mode_t mode,
uid_t uid, gid_t gid, uid_t cuid, gid_t cgid, int16_t nsems)
{
char ctime_buf[100], otime_buf[100];
if (option & TIME) {
cvt_time(otime, otime_buf, sizeof(otime_buf));
cvt_time(ctime, ctime_buf, sizeof(ctime_buf));
}
printf("s %8d %10ld %s %8s %8s", ipcid, key, fmt_perm(mode),
user_from_uid(uid, 0), group_from_gid(gid, 0));
if (option & CREATOR)
printf(" %8s %8s", user_from_uid(cuid, 0),
group_from_gid(cgid, 0));
if (option & BIGGEST)
printf(" %5d", nsems);
if (option & TIME)
printf(" %s %s", otime_buf, ctime_buf);
printf("\n");
}
void
msg_sysctl(void)
{
struct msg_sysctl_info *msgsi;
char *buf;
int mib[3];
size_t len;
int i, valid;
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVMSG;
len = sizeof(valid);
if (sysctl(mib, 2, &valid, &len, NULL, NULL) < 0) {
warn("sysctl(KERN_SYSVMSG)");
return;
}
if (!valid) {
warnx("SVID messages facility not configured in the system");
return;
}
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVIPC_INFO;
mib[2] = KERN_SYSVIPC_MSG_INFO;
if (!(display & MSGINFO)) {
/* totals only */
len = sizeof(struct msginfo);
} else {
if (sysctl(mib, 3, NULL, &len, NULL, NULL) < 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, 3, msgsi, &len, NULL, NULL) < 0) {
warn("sysctl(KERN_SYSVIPC_MSG_INFO)");
return;
}
if (display & MSGTOTAL)
show_msgtotal(&msgsi->msginfo);
if (display & MSGINFO) {
show_msginfo_hdr();
for (i = 0; i < msgsi->msginfo.msgmni; i++) {
struct msqid_ds *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);
}
printf("\n");
}
}
void
shm_sysctl(void)
{
struct shm_sysctl_info *shmsi;
char *buf;
int mib[3];
size_t len;
int i, valid;
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVSHM;
len = sizeof(valid);
if (sysctl(mib, 2, &valid, &len, NULL, NULL) < 0) {
warn("sysctl(KERN_SYSVSHM)");
return;
}
if (!valid) {
warnx("SVID shared memory facility not configured in "
"the system");
return;
}
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVIPC_INFO;
mib[2] = KERN_SYSVIPC_SHM_INFO;
if (!(display & SHMINFO)) {
/* totals only */
len = sizeof(struct shminfo);
} else {
if (sysctl(mib, 3, NULL, &len, NULL, NULL) < 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, 3, shmsi, &len, NULL, NULL) < 0) {
warn("sysctl(KERN_SYSVIPC_SHM_INFO)");
return;
}
if (display & SHMTOTAL)
show_shmtotal(&shmsi->shminfo);
if (display & SHMINFO) {
show_shminfo_hdr();
for (i = 0; i < shmsi->shminfo.shmmni; i++) {
struct shmid_ds *shmptr = &shmsi->shmids[i];
if (shmptr->shm_internal)
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);
}
printf("\n");
}
}
void
sem_sysctl(void)
{
struct sem_sysctl_info *semsi;
char *buf;
int mib[3];
size_t len;
int i, valid;
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVSEM;
len = sizeof(valid);
if (sysctl(mib, 2, &valid, &len, NULL, NULL) < 0) {
warn("sysctl(KERN_SYSVSEM)");
return;
}
if (!valid) {
warnx("SVID shared memory facility not configured in "
"the system");
return;
}
mib[0] = CTL_KERN;
mib[1] = KERN_SYSVIPC_INFO;
mib[2] = KERN_SYSVIPC_SEM_INFO;
if (!(display & SEMINFO)) {
/* totals only */
len = sizeof(struct seminfo);
} else {
if (sysctl(mib, 3, NULL, &len, NULL, NULL) < 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, 3, semsi, &len, NULL, NULL) < 0) {
warn("sysctl(KERN_SYSVIPC_SEM_INFO)");
return;
}
if (display & SEMTOTAL)
show_semtotal(&semsi->seminfo);
if (display & SEMINFO) {
show_seminfo_hdr();
for (i = 0; i < semsi->seminfo.semmni; i++) {
struct semid_ds *semaptr = &semsi->semids[i];
if (semaptr->sem_base != NULL)
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);
}
printf("\n");
}
}
void
ipcs_kvm(void)
{
struct msginfo msginfo;
struct msqid_ds *msqids;
struct seminfo seminfo;
struct semid_ds sem, **sema;
struct shminfo shminfo;
struct shmid_ds shmseg, **shmsegs;
char errbuf[_POSIX2_LINE_MAX];
u_long addr;
kvm_t *kd;
int i;
struct nlist symbols[] = {
{"_sema"},
#define X_SEMA 0
{"_seminfo"},
#define X_SEMINFO 1
{"_semu"},
#define X_SEMU 2
{"_msginfo"},
#define X_MSGINFO 3
{"_msqids"},
#define X_MSQIDS 4
{"_shminfo"},
#define X_SHMINFO 5
{"_shmsegs"},
#define X_SHMSEGS 6
{NULL}
};
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) {
if (kvm_read(kd, symbols[X_MSQIDS].n_value,
&addr, sizeof(addr)) != sizeof(addr))
errx(1, "kvm_read (%s): %s",
symbols[X_MSQIDS].n_name, kvm_geterr(kd));
msqids = malloc(sizeof(struct msqid_ds) *
msginfo.msgmni);
if (msqids == NULL)
err(1, "malloc");
if (kvm_read(kd, addr, msqids,
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 = &msqids[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);
}
printf("\n");
}
} else {
if (display & (MSGINFO | MSGTOTAL)) {
warnx("SVID messages facility not configured in "
"the system");
}
}
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) {
if (kvm_read(kd, symbols[X_SHMSEGS].n_value, &addr,
sizeof(addr)) != sizeof(addr))
errx(1, "kvm_read (%s): %s",
symbols[X_SHMSEGS].n_name, kvm_geterr(kd));
shmsegs = malloc(sizeof(struct shmid_ds *) *
shminfo.shmmni);
if (shmsegs == NULL)
err(1, "malloc");
if (kvm_read(kd, addr, shmsegs,
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 (i = 0; i < shminfo.shmmni; i++) {
if (shmsegs[i] == NULL)
continue;
if (kvm_read(kd, (u_long)shmsegs[i], &shmseg,
sizeof(shmseg)) != sizeof(shmseg))
errx(1, "kvm_read (shmseg): %s",
kvm_geterr(kd));
show_shminfo(shmseg.shm_atime,
shmseg.shm_dtime,
shmseg.shm_ctime,
IXSEQ_TO_IPCID(i, shmseg.shm_perm),
shmseg.shm_perm.key,
shmseg.shm_perm.mode,
shmseg.shm_perm.uid,
shmseg.shm_perm.gid,
shmseg.shm_perm.cuid,
shmseg.shm_perm.cgid,
shmseg.shm_nattch,
shmseg.shm_segsz,
shmseg.shm_cpid,
shmseg.shm_lpid);
}
printf("\n");
}
} else
if (display & (SHMINFO | SHMTOTAL)) {
warnx("SVID shared memory facility not configured in "
"the system");
}
if ((display & (SEMINFO | SEMTOTAL)) &&
(kvm_read(kd, symbols[X_SEMINFO].n_value, &seminfo,
sizeof(seminfo)) == sizeof(seminfo))) {
if (display & SEMTOTAL)
show_semtotal(&seminfo);
if (display & SEMINFO) {
if (kvm_read(kd, symbols[X_SEMA].n_value, &addr,
sizeof(addr)) != sizeof(addr))
errx(1, "kvm_read (%s): %s",
symbols[X_SEMA].n_name, kvm_geterr(kd));
sema = malloc(sizeof(struct semid_ds *) *
seminfo.semmni);
if (sema == NULL)
err(1, "malloc");
if (kvm_read(kd, addr, sema,
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++) {
if (sema[i] == NULL)
continue;
if (kvm_read(kd, (u_long)sema[i], &sem,
sizeof(sem)) != sizeof(sem))
errx(1, "kvm_read (sem): %s",
kvm_geterr(kd));
show_seminfo(sem.sem_otime,
sem.sem_ctime,
IXSEQ_TO_IPCID(i, sem.sem_perm),
sem.sem_perm.key,
sem.sem_perm.mode,
sem.sem_perm.uid,
sem.sem_perm.gid,
sem.sem_perm.cuid,
sem.sem_perm.cgid,
sem.sem_nsems);
}
printf("\n");
}
} else
if (display & (SEMINFO | SEMTOTAL)) {
warnx("SVID semaphores facility not configured in "
"the system");
}
kvm_close(kd);
}
void
usage(void)
{
extern char *__progname;
fprintf(stderr,
"usage: %s [-abcmopqstMQST] [-C corefile] [-N namelist]\n",
__progname);
exit(1);
}
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