diff options
Diffstat (limited to 'winsup/utils/ipcs.c')
| -rw-r--r-- | winsup/utils/ipcs.c | 872 |
1 files changed, 0 insertions, 872 deletions
diff --git a/winsup/utils/ipcs.c b/winsup/utils/ipcs.c deleted file mode 100644 index 229330b99..000000000 --- a/winsup/utils/ipcs.c +++ /dev/null @@ -1,872 +0,0 @@ -/* - * 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> -#ifndef __FBSDID -#define __FBSDID(s) const char version[] = (s) -#endif -__FBSDID("$FreeBSD: /repoman/r/ncvs/src/usr.bin/ipcs/ipcs.c,v 1.22 2003/10/30 16:52:14 iwasaki Exp $"); - -#include <assert.h> -#include <err.h> -#include <fcntl.h> -#include <grp.h> -#ifndef __CYGWIN__ -#include <kvm.h> -#include <nlist.h> -#endif /* __CYGWIN__ */ -#include <limits.h> -#include <paths.h> -#include <pwd.h> -#ifdef __CYGWIN__ -#include <grp.h> -#endif /* __CYGWIN__ */ -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/time.h> -#ifndef __CYGWIN__ -#include <sys/proc.h> -#include <sys/sysctl.h> -#endif /* __CYGWIN__ */ -#define _KERNEL -#include <sys/ipc.h> -#include <sys/sem.h> -#include <sys/shm.h> -#include <sys/msg.h> - -/* SysCtlGatherStruct structure. */ -struct scgs_vector { - const char *sysctl; - off_t offset; - size_t size; -}; - -int use_sysctl = 1; -struct semid_ds *sema; -struct seminfo seminfo; -struct msginfo msginfo; -struct msqid_ds *msqids; -struct shminfo shminfo; -struct shmid_ds *shmsegs; - -char *fmt_perm(u_short); -void cvt_time(time_t, char *); -void sysctlgatherstruct(void *addr, size_t size, struct scgs_vector *vec); -void kget(int idx, void *addr, size_t size); -void usage(void); -#ifdef __CYGWIN__ -void help() __attribute__ ((noreturn)); -#endif /* __CYGWIN__ */ - -#ifdef __CYGWIN__ -#define _POSIX2_LINE_MAX 255 -typedef int kvm_t; -#define kvm_openfiles(a,b,c,d,e) NULL -#define kvm_nlist(a,b) -1 -#define kvm_close(a) -#define kvm_read(a,b,c,d) 0 -#define kvm_geterr(a) "" -#define sysctlbyname(a,b,c,d,e) -1 - -struct nlist { - const char *n_name; - int n_type; - int n_value; -}; -#endif /* __CYGWIN__ */ - -static struct nlist symbols[] = { - {"sema"}, -#define X_SEMA 0 - {"seminfo"}, -#define X_SEMINFO 1 - {"msginfo"}, -#define X_MSGINFO 2 - {"msqids"}, -#define X_MSQIDS 3 - {"shminfo"}, -#define X_SHMINFO 4 - {"shmsegs"}, -#define X_SHMSEGS 5 -#ifdef __CYGWIN__ - {"msgstat"}, -#define X_MSGSTAT 6 - {"semstat"}, -#define X_SEMSTAT 7 - {"shmstat"}, -#define X_SHMSTAT 8 -#endif /* __CYGWIN__ */ - {NULL} -}; - -#define SHMINFO_XVEC \ -X(shmmax, sizeof(int)) \ -X(shmmin, sizeof(int)) \ -X(shmmni, sizeof(int)) \ -X(shmseg, sizeof(int)) \ -X(shmall, sizeof(int)) - -#define SEMINFO_XVEC \ -X(semmap, sizeof(int)) \ -X(semmni, sizeof(int)) \ -X(semmns, sizeof(int)) \ -X(semmnu, sizeof(int)) \ -X(semmsl, sizeof(int)) \ -X(semopm, sizeof(int)) \ -X(semume, sizeof(int)) \ -X(semusz, sizeof(int)) \ -X(semvmx, sizeof(int)) \ -X(semaem, sizeof(int)) - -#define MSGINFO_XVEC \ -X(msgmax, sizeof(int)) \ -X(msgmni, sizeof(int)) \ -X(msgmnb, sizeof(int)) \ -X(msgtql, sizeof(int)) \ -X(msgssz, sizeof(int)) \ -X(msgseg, sizeof(int)) - -#define X(a, b) { "kern.ipc." #a, offsetof(TYPEC, a), (b) }, -#define TYPEC struct shminfo -struct scgs_vector shminfo_scgsv[] = { SHMINFO_XVEC { NULL } }; -#undef TYPEC -#define TYPEC struct seminfo -struct scgs_vector seminfo_scgsv[] = { SEMINFO_XVEC { NULL } }; -#undef TYPEC -#define TYPEC struct msginfo -struct scgs_vector msginfo_scgsv[] = { MSGINFO_XVEC { NULL } }; -#undef TYPEC -#undef X - -static kvm_t *kd; - -#ifdef __CYGWIN__ -const char * -user_from_uid (uid_t uid, uid_t dummy) -{ - struct passwd *pwd = getpwuid (uid); - return pwd ? pwd->pw_name : "???"; -} - -const char * -group_from_gid (gid_t gid, gid_t dummy) -{ - struct group *grp = getgrgid (gid); - return grp ? grp->gr_name : "???"; -} -#endif /* __CYGWIN__ */ - -char * -fmt_perm(mode) - u_short mode; -{ - static char buffer[100]; - - 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(t, buf) - time_t t; - char *buf; -{ - struct tm *tm; - - if (t == 0) { - strcpy(buf, "no-entry"); - } else { - tm = localtime(&t); - 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 -#ifdef __CYGWIN__ -#define STATUS 32 -#endif /* __CYGWIN__ */ - -int -main(argc, argv) - int argc; - char *argv[]; -{ - int display = SHMINFO | MSGINFO | SEMINFO; - int option = 0; - char *core = NULL, *namelist = NULL; - char kvmoferr[_POSIX2_LINE_MAX]; /* Error buf for kvm_openfiles. */ - int i; - -#ifdef __CYGWIN__ - while ((i = getopt(argc, argv, "MmQqSsabchoptTu")) != -1) -#else - while ((i = getopt(argc, argv, "MmQqSsabC:cN:optTy")) != -1) -#endif /* __CYGWIN__ */ - 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; -#ifndef __CYGWIN__ - case 'C': - core = optarg; - break; -#endif /* __CYGWIN__ */ - case 'c': - option |= CREATOR; - break; -#ifndef __CYGWIN__ - case 'N': - namelist = optarg; - break; -#endif /* __CYGWIN__ */ - case 'o': - option |= OUTSTANDING; - break; - case 'p': - option |= PID; - break; - case 't': - option |= TIME; - break; -#ifdef __CYGWIN__ - case 'h': - help(); - case 'u': - option |= STATUS; - break; -#endif /* __CYGWIN__ */ -#ifndef __CYGWIN__ - case 'y': - use_sysctl = 0; - break; -#endif /* __CYGWIN__ */ - default: - usage(); - } - - /* - * If paths to the exec file or core file were specified, we - * aren't operating on the running kernel, so we can't use - * sysctl. - */ - if (namelist != NULL || core != NULL) - use_sysctl = 0; - - if (!use_sysctl) { - kd = kvm_openfiles(namelist, core, NULL, O_RDONLY, kvmoferr); - if (kd == NULL) - errx(1, "kvm_openfiles: %s", kvmoferr); - switch (kvm_nlist(kd, symbols)) { - case 0: - break; - case -1: - errx(1, "unable to read kernel symbol table"); - 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; - } - } - - kget(X_MSGINFO, &msginfo, sizeof(msginfo)); - if ((display & (MSGINFO | MSGTOTAL))) { - if (display & MSGTOTAL) { - printf("msginfo:\n"); - printf("\tmsgmax: %8ld\t(max characters in a message)\n", - msginfo.msgmax); - printf("\tmsgmni: %8ld\t(# of message queues)\n", - msginfo.msgmni); - printf("\tmsgmnb: %8ld\t(max characters in a message queue)\n", - msginfo.msgmnb); - printf("\tmsgtql: %8ld\t(max # of messages in system)\n", - msginfo.msgtql); - printf("\tmsgssz: %8ld\t(size of a message segment)\n", - msginfo.msgssz); - printf("\tmsgseg: %8ld\t(# of message segments in system)\n\n", - msginfo.msgseg); - } - if (display & MSGINFO) { - struct msqid_ds *xmsqids; - size_t xmsqids_len; - - - xmsqids_len = sizeof(struct msqid_ds) * msginfo.msgmni; - xmsqids = malloc(xmsqids_len); - kget(X_MSQIDS, xmsqids, xmsqids_len); - - 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"); - for (i = 0; i < msginfo.msgmni; i += 1) { - if (xmsqids[i].msg_qbytes != 0) { - char stime_buf[100], rtime_buf[100], - ctime_buf[100]; - struct msqid_ds *msqptr = &xmsqids[i]; - - cvt_time(msqptr->msg_stime, stime_buf); - cvt_time(msqptr->msg_rtime, rtime_buf); - cvt_time(msqptr->msg_ctime, ctime_buf); - - printf("q %6d %20llu %s %8s %8s", - IXSEQ_TO_IPCID(i, msqptr->msg_perm), - msqptr->msg_perm.key, - fmt_perm(msqptr->msg_perm.mode), - 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"); - } - } - printf("\n"); - } -#ifdef __CYGWIN__ - if (option & STATUS) { - struct msg_info msg_info; - kget(X_MSGSTAT, &msg_info, sizeof msg_info); - printf("Message Queue Usage:\n"); - printf("\tmsg_ids: %7ld\t(no. of allocated queues)\n", - msg_info.msg_ids); - printf("\tmsg_num: %7ld\t(no. of messages in system)\n", - msg_info.msg_num); - printf("\tmsg_tot: %7ld\t(size in bytes of messages in system)\n", - msg_info.msg_tot); - printf("\n"); - } -#endif /* __CYGWIN__ */ - } else - if (display & (MSGINFO | MSGTOTAL)) { - fprintf(stderr, - "SVID messages facility not configured in the system\n"); - } - - kget(X_SHMINFO, &shminfo, sizeof(shminfo)); - if ((display & (SHMINFO | SHMTOTAL))) { - if (display & SHMTOTAL) { - printf("shminfo:\n"); - printf("\tshmmax: %8ld\t(max shared memory segment size)\n", - shminfo.shmmax); - printf("\tshmmin: %8ld\t(min shared memory segment size)\n", - shminfo.shmmin); - printf("\tshmmni: %8ld\t(max number of shared memory identifiers)\n", - shminfo.shmmni); - printf("\tshmseg: %8ld\t(max shared memory segments per process)\n", - shminfo.shmseg); - printf("\tshmall: %8ld\t(max amount of shared memory in pages)\n\n", - shminfo.shmall); - } - if (display & SHMINFO) { - struct shmid_ds *xshmids; - size_t xshmids_len; - - xshmids_len = sizeof(struct shmid_ds) * shminfo.shmmni; - xshmids = malloc(xshmids_len); - kget(X_SHMSEGS, xshmids, xshmids_len); - - 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"); - for (i = 0; i < shminfo.shmmni; i += 1) { - if (xshmids[i].shm_perm.mode & 0x0800) { - char atime_buf[100], dtime_buf[100], - ctime_buf[100]; - struct shmid_ds *shmptr = &xshmids[i]; - - cvt_time(shmptr->shm_atime, atime_buf); - cvt_time(shmptr->shm_dtime, dtime_buf); - cvt_time(shmptr->shm_ctime, ctime_buf); - - printf("m %6d %20llu %s %8s %8s", - IXSEQ_TO_IPCID(i, shmptr->shm_perm), - shmptr->shm_perm.key, - fmt_perm(shmptr->shm_perm.mode), - 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(" %6d", - 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"); - } - } - printf("\n"); - } -#ifdef __CYGWIN__ - if (option & STATUS) { - struct shm_info shm_info; - kget(X_SHMSTAT, &shm_info, sizeof shm_info); - printf("Shared Memory Usage:\n"); - printf("\tshm_ids: %7ld\t(no. of allocated segments)\n", - shm_info.shm_ids); - printf("\tshm_tot: %7ld\t(size in bytes of allocated segments)\n", - shm_info.shm_tot); - printf("\tshm_atts: %7ld\t(no. of attached segments in system)\n", - shm_info.shm_atts); - printf("\n"); - } -#endif /* __CYGWIN__ */ - } else - if (display & (SHMINFO | SHMTOTAL)) { - fprintf(stderr, - "SVID shared memory facility not configured in the system\n"); - } - - kget(X_SEMINFO, &seminfo, sizeof(seminfo)); - if ((display & (SEMINFO | SEMTOTAL))) { - struct semid_ds *xsema; - size_t xsema_len; - - if (display & SEMTOTAL) { - printf("seminfo:\n"); - printf("\tsemmap: %8ld\t(# of entries in semaphore map)\n", - seminfo.semmap); - printf("\tsemmni: %8ld\t(# of semaphore identifiers)\n", - seminfo.semmni); - printf("\tsemmns: %8ld\t(# of semaphores in system)\n", - seminfo.semmns); - printf("\tsemmnu: %8ld\t(# of undo structures in system)\n", - seminfo.semmnu); - printf("\tsemmsl: %8ld\t(max # of semaphores per id)\n", - seminfo.semmsl); - printf("\tsemopm: %8ld\t(max # of operations per semop call)\n", - seminfo.semopm); - printf("\tsemume: %8ld\t(max # of undo entries per process)\n", - seminfo.semume); - printf("\tsemusz: %8ld\t(size in bytes of undo structure)\n", - seminfo.semusz); - printf("\tsemvmx: %8ld\t(semaphore maximum value)\n", - seminfo.semvmx); - printf("\tsemaem: %8ld\t(adjust on exit max value)\n\n", - seminfo.semaem); - } - if (display & SEMINFO) { - xsema_len = sizeof(struct semid_ds) * seminfo.semmni; - xsema = malloc(xsema_len); - kget(X_SEMA, xsema, xsema_len); - - 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"); - for (i = 0; i < seminfo.semmni; i += 1) { - if ((xsema[i].sem_perm.mode & SEM_ALLOC) != 0) { - char ctime_buf[100], otime_buf[100]; - struct semid_ds *semaptr = &xsema[i]; - - cvt_time(semaptr->sem_otime, otime_buf); - cvt_time(semaptr->sem_ctime, ctime_buf); - - printf("s %6d %20llu %s %8s %8s", - IXSEQ_TO_IPCID(i, semaptr->sem_perm), - semaptr->sem_perm.key, - fmt_perm(semaptr->sem_perm.mode), - 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"); - } - } - - printf("\n"); - } -#ifdef __CYGWIN__ - if (option & STATUS) { - struct sem_info sem_info; - kget(X_SEMSTAT, &sem_info, sizeof sem_info); - printf("Semaphore Usage:\n"); - printf("\tsem_ids: %7ld\t(no. of allocated semaphore sets)\n", - sem_info.sem_ids); - printf("\tsem_num: %7ld\t(no. of allocated semaphores)\n", - sem_info.sem_num); - printf("\n"); - } -#endif /* __CYGWIN__ */ - } else - if (display & (SEMINFO | SEMTOTAL)) { - fprintf(stderr, "SVID semaphores facility not configured in the system\n"); - } - if (!use_sysctl) - kvm_close(kd); - - exit(0); -} - -void -sysctlgatherstruct(addr, size, vecarr) - void *addr; - size_t size; - struct scgs_vector *vecarr; -{ - struct scgs_vector *xp; - size_t tsiz; - int rv; - - for (xp = vecarr; xp->sysctl != NULL; xp++) { - assert(xp->offset <= size); - tsiz = xp->size; - rv = sysctlbyname(xp->sysctl, (char *)addr + xp->offset, - &tsiz, NULL, 0); - if (rv == -1) - errx(1, "sysctlbyname: %s", xp->sysctl); - if (tsiz != xp->size) - errx(1, "%s size mismatch (expected %d, got %d)", - xp->sysctl, xp->size, tsiz); - } -} - -void -kget(idx, addr, size) - int idx; - void *addr; - size_t size; -{ - const char *symn; /* symbol name */ - size_t tsiz; - int rv; - unsigned long kaddr; - const char *sym2sysctl[] = { /* symbol to sysctl name table */ - "kern.ipc.sema", - "kern.ipc.seminfo", - "kern.ipc.msginfo", - "kern.ipc.msqids", - "kern.ipc.shminfo", - "kern.ipc.shmsegs" }; - -#ifndef __CYGWIN__ - assert((unsigned)idx <= sizeof(sym2sysctl) / sizeof(*sym2sysctl)); -#endif /* __CYGWIN__ */ -#ifdef __CYGWIN__ - if (1) { - union semun su; - switch (idx) { - case X_MSGINFO: - if (msgctl(0, IPC_INFO, (struct msqid_ds *)addr) < 0) - err(1, "msgctl"); - break; - case X_SEMINFO: - su.buf = (struct semid_ds *)addr; - if (semctl(0, 0, IPC_INFO, su) < 0) - err(1, "semctl"); - break; - break; - case X_SHMINFO: - if (shmctl(0, IPC_INFO, (struct shmid_ds *)addr) < 0) - err(1, "shmctl"); - break; - case X_MSQIDS: - if (msgctl(size / sizeof(struct msqid_ds), IPC_INFO, - (struct msqid_ds *)addr) < 0) - err(1, "msgctl"); - break; - case X_SEMA: - su.buf = (struct semid_ds *)addr; - if (semctl(size / sizeof(struct semid_ds), 0, - IPC_INFO, su) < 0) - err(1, "semctl"); - break; - case X_SHMSEGS: - if (shmctl(size / sizeof(struct shmid_ds), IPC_INFO, - (struct shmid_ds *)addr) < 0) - err(1, "shmctl"); - break; - case X_MSGSTAT: - if (msgctl(0, MSG_INFO, (struct msqid_ds *)addr) < 0) - err(1, "msgctl"); - break; - case X_SEMSTAT: - su.buf = (struct semid_ds *)addr; - if (semctl(0, 0, SEM_INFO, su) < 0) - err(1, "semctl"); - break; - break; - case X_SHMSTAT: - if (shmctl(0, SHM_INFO, (struct shmid_ds *)addr) < 0) - err(1, "shmctl"); - break; - } - } else -#endif /* __CYGWIN__ */ - if (!use_sysctl) { - symn = symbols[idx].n_name; - if (*symn == '_') - symn++; - if (symbols[idx].n_type == 0 || symbols[idx].n_value == 0) - errx(1, "symbol %s undefined", symn); - /* - * For some symbols, the value we retreieve is - * actually a pointer; since we want the actual value, - * we have to manually dereference it. - */ - switch (idx) { - case X_MSQIDS: - tsiz = sizeof(msqids); - rv = kvm_read(kd, symbols[idx].n_value, - &msqids, tsiz); - kaddr = (u_long)msqids; - break; - case X_SHMSEGS: - tsiz = sizeof(shmsegs); - rv = kvm_read(kd, symbols[idx].n_value, - &shmsegs, tsiz); - kaddr = (u_long)shmsegs; - break; - case X_SEMA: - tsiz = sizeof(sema); - rv = kvm_read(kd, symbols[idx].n_value, - &sema, tsiz); - kaddr = (u_long)sema; - break; - default: - rv = tsiz = 0; - kaddr = symbols[idx].n_value; - break; - } - if ((unsigned)rv != tsiz) - errx(1, "%s: %s", symn, kvm_geterr(kd)); - if ((unsigned)kvm_read(kd, kaddr, addr, size) != size) - errx(1, "%s: %s", symn, kvm_geterr(kd)); - } else { - switch (idx) { - case X_SHMINFO: - sysctlgatherstruct(addr, size, shminfo_scgsv); - break; - case X_SEMINFO: - sysctlgatherstruct(addr, size, seminfo_scgsv); - break; - case X_MSGINFO: - sysctlgatherstruct(addr, size, msginfo_scgsv); - break; - default: - tsiz = size; - rv = sysctlbyname(sym2sysctl[idx], addr, &tsiz, - NULL, 0); - if (rv == -1) - err(1, "sysctlbyname: %s", sym2sysctl[idx]); - if (tsiz != size) - errx(1, "%s size mismatch " - "(expected %d, got %d)", - sym2sysctl[idx], size, tsiz); - break; - } - } -} - -void -usage() -{ - - fprintf(stderr, -#ifdef __CYGWIN__ - "usage: ipcs [-abchmopqstuMQST]\n" - "Try `ipcs -h' for more information.\n"); -#else - "usage: ipcs [-abcmopqstyMQST] [-C corefile] [-N namelist]\n"); -#endif /* __CYGWIN__ */ - exit(1); -} - -#ifdef __CYGWIN__ -void -help() -{ puts( -"usage: ipcs [-abchmopqstuMQST]\n" -"ipcs prints information for IPC resources for which you have read access.\n" -" -a Show the maximum amount of information possible when displaying\n" -" active semaphores, message queues and shared memory segments\n" -" (This is shorthand for specifying -bcopt).\n" -" -b Show the maximum allowed sizes for active semaphores, message queues\n" -" and shared memory segments. The maximum allowed size is the maximum\n" -" number of bytes in a message on a message queue, the size of a shared\n" -" memory segment, or the number of semaphores in a set of semaphores.\n" -" -c Show the creator's name and group for active semaphores, message\n" -" queues, and shared memory segments.\n" -" -h This help.\n" -" -m Display information about active shared memory segments.\n" -" -o Show outstanding usage for active message queues and shared memory\n" -" segments. The outstanding usage is the number of messages in a\n" -" message queue, or the number of processes attached to a shared memory\n" -" segment.\n" -" -p Show the process ID information for active semaphores, message queues\n" -" and shared memory segments. The process ID information is the last\n" -" process to send a message to or receive a message from a message\n" -" queue, the process that created a semaphore, or the last process to\n" -" attach or detach a shared memory segment.\n" -" -q Display information about active message queues.\n" -" -s Display information about active semaphores.\n" -" -t Show access times for active semaphores, message queues and shared\n" -" -u Show system wide usage of IPC resources. This information is added\n" -" as a list after the appropriate shared memory, messages queue or\n" -" semaphore information output\n" -" -M Display system information about shared memory.\n" -" -Q Display system information about messages queues.\n" -" -S Display system information about semaphores.\n" -" -T Display system information about shared memory, message queues and\n" -" semaphores.\n"); - exit(0); -} -#endif /* __CYGWIN__ */ |