mirror of
https://github.com/sheumann/hush.git
synced 2024-08-16 09:29:16 +00:00
function old new delta procps_scan 1265 1298 +33 aliascmd 278 283 +5 parse_file_cmd 116 120 +4 dname_enc 373 377 +4 setcmd 90 93 +3 execcmd 57 60 +3 count_lines 72 74 +2 process_command_subs 340 339 -1 test_main 409 407 -2 mknod_main 179 177 -2 handle_incoming_and_exit 2653 2651 -2 argstr 1312 1310 -2 shiftcmd 131 128 -3 exitcmd 46 43 -3 dotcmd 297 294 -3 breakcmd 86 83 -3 evalpipe 353 349 -4 evalcommand 1180 1176 -4 evalcmd 109 105 -4 send_tree 374 369 -5 mkfifo_main 82 77 -5 evalsubshell 152 147 -5 typecmd 75 69 -6 letcmd 61 55 -6 add_cmd 1190 1183 -7 main 891 883 -8 ash_main 1415 1407 -8 parse_stream 1377 1367 -10 alloc_procps_scan 55 - -55 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 7/21 up/down: 54/-148) Total: -94 bytes text data bss dec hex filename 797195 658 7428 805281 c49a1 busybox_old 797101 658 7428 805187 c4943 busybox_unstripped
622 lines
17 KiB
C
622 lines
17 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* ipcs.c -- provides information on allocated ipc resources.
|
|
*
|
|
* 01 Sept 2004 - Rodney Radford <rradford@mindspring.com>
|
|
* Adapted for busybox from util-linux-2.12a.
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
|
*/
|
|
|
|
/* X/OPEN tells us to use <sys/{types,ipc,sem}.h> for semctl() */
|
|
/* X/OPEN tells us to use <sys/{types,ipc,msg}.h> for msgctl() */
|
|
/* X/OPEN tells us to use <sys/{types,ipc,shm}.h> for shmctl() */
|
|
#include <sys/types.h>
|
|
#include <sys/ipc.h>
|
|
#include <sys/sem.h>
|
|
#include <sys/msg.h>
|
|
#include <sys/shm.h>
|
|
|
|
#include "libbb.h"
|
|
|
|
/*-------------------------------------------------------------------*/
|
|
/* SHM_DEST and SHM_LOCKED are defined in kernel headers,
|
|
but inside #ifdef __KERNEL__ ... #endif */
|
|
#ifndef SHM_DEST
|
|
/* shm_mode upper byte flags */
|
|
#define SHM_DEST 01000 /* segment will be destroyed on last detach */
|
|
#define SHM_LOCKED 02000 /* segment will not be swapped */
|
|
#endif
|
|
|
|
/* For older kernels the same holds for the defines below */
|
|
#ifndef MSG_STAT
|
|
#define MSG_STAT 11
|
|
#define MSG_INFO 12
|
|
#endif
|
|
|
|
#ifndef SHM_STAT
|
|
#define SHM_STAT 13
|
|
#define SHM_INFO 14
|
|
struct shm_info {
|
|
int used_ids;
|
|
ulong shm_tot; /* total allocated shm */
|
|
ulong shm_rss; /* total resident shm */
|
|
ulong shm_swp; /* total swapped shm */
|
|
ulong swap_attempts;
|
|
ulong swap_successes;
|
|
};
|
|
#endif
|
|
|
|
#ifndef SEM_STAT
|
|
#define SEM_STAT 18
|
|
#define SEM_INFO 19
|
|
#endif
|
|
|
|
/* Some versions of libc only define IPC_INFO when __USE_GNU is defined. */
|
|
#ifndef IPC_INFO
|
|
#define IPC_INFO 3
|
|
#endif
|
|
/*-------------------------------------------------------------------*/
|
|
|
|
/* The last arg of semctl is a union semun, but where is it defined?
|
|
X/OPEN tells us to define it ourselves, but until recently
|
|
Linux include files would also define it. */
|
|
#if defined(__GNU_LIBRARY__) && !defined(_SEM_SEMUN_UNDEFINED)
|
|
/* union semun is defined by including <sys/sem.h> */
|
|
#else
|
|
/* according to X/OPEN we have to define it ourselves */
|
|
union semun {
|
|
int val;
|
|
struct semid_ds *buf;
|
|
unsigned short *array;
|
|
struct seminfo *__buf;
|
|
};
|
|
#endif
|
|
|
|
/* X/OPEN (Jan 1987) does not define fields key, seq in struct ipc_perm;
|
|
libc 4/5 does not mention struct ipc_term at all, but includes
|
|
<linux/ipc.h>, which defines a struct ipc_perm with such fields.
|
|
glibc-1.09 has no support for sysv ipc.
|
|
glibc 2 uses __key, __seq */
|
|
#if defined(__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1
|
|
#define KEY __key
|
|
#else
|
|
#define KEY key
|
|
#endif
|
|
|
|
#define LIMITS 1
|
|
#define STATUS 2
|
|
#define CREATOR 3
|
|
#define TIME 4
|
|
#define PID 5
|
|
|
|
static char format;
|
|
|
|
static void print_perms(int id, struct ipc_perm *ipcp)
|
|
{
|
|
struct passwd *pw;
|
|
struct group *gr;
|
|
|
|
printf("%-10d %-10o", id, ipcp->mode & 0777);
|
|
|
|
pw = getpwuid(ipcp->cuid);
|
|
if (pw) printf(" %-10s", pw->pw_name);
|
|
else printf(" %-10d", ipcp->cuid);
|
|
gr = getgrgid(ipcp->cgid);
|
|
if (gr) printf(" %-10s", gr->gr_name);
|
|
else printf(" %-10d", ipcp->cgid);
|
|
|
|
pw = getpwuid(ipcp->uid);
|
|
if (pw) printf(" %-10s", pw->pw_name);
|
|
else printf(" %-10d", ipcp->uid);
|
|
gr = getgrgid(ipcp->gid);
|
|
if (gr) printf(" %-10s\n", gr->gr_name);
|
|
else printf(" %-10d\n", ipcp->gid);
|
|
}
|
|
|
|
|
|
static void do_shm(void)
|
|
{
|
|
int maxid, shmid, id;
|
|
struct shmid_ds shmseg;
|
|
struct shm_info shm_info;
|
|
struct shminfo shminfo;
|
|
struct ipc_perm *ipcp = &shmseg.shm_perm;
|
|
struct passwd *pw;
|
|
|
|
maxid = shmctl(0, SHM_INFO, (struct shmid_ds *) (void *) &shm_info);
|
|
if (maxid < 0) {
|
|
printf("kernel not configured for %s\n", "shared memory");
|
|
return;
|
|
}
|
|
|
|
switch (format) {
|
|
case LIMITS:
|
|
printf("------ Shared Memory %s --------\n", "Limits");
|
|
if ((shmctl(0, IPC_INFO, (struct shmid_ds *) (void *) &shminfo)) < 0)
|
|
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 */
|
|
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:
|
|
printf("------ Shared Memory %s --------\n", "Status");
|
|
printf( "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:
|
|
printf("------ Shared Memory %s --------\n", "Segment Creators/Owners");
|
|
printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n",
|
|
"shmid", "perms", "cuid", "cgid", "uid", "gid");
|
|
break;
|
|
|
|
case TIME:
|
|
printf("------ Shared Memory %s --------\n", "Attach/Detach/Change Times");
|
|
printf( "%-10s %-10s %-20s %-20s %-20s\n",
|
|
"shmid", "owner", "attached", "detached", "changed");
|
|
break;
|
|
|
|
case PID:
|
|
printf("------ Shared Memory %s --------\n", "Creator/Last-op");
|
|
printf( "%-10s %-10s %-10s %-10s\n",
|
|
"shmid", "owner", "cpid", "lpid");
|
|
break;
|
|
|
|
default:
|
|
printf("------ Shared Memory %s --------\n", "Segments");
|
|
printf( "%-10s %-10s %-10s %-10s %-10s %-10s %-12s\n",
|
|
"key", "shmid", "owner", "perms", "bytes", "nattch",
|
|
"status");
|
|
break;
|
|
}
|
|
|
|
for (id = 0; id <= maxid; id++) {
|
|
shmid = shmctl(id, SHM_STAT, &shmseg);
|
|
if (shmid < 0)
|
|
continue;
|
|
if (format == CREATOR) {
|
|
print_perms(shmid, ipcp);
|
|
continue;
|
|
}
|
|
pw = getpwuid(ipcp->uid);
|
|
switch (format) {
|
|
case TIME:
|
|
if (pw)
|
|
printf("%-10d %-10.10s", shmid, pw->pw_name);
|
|
else
|
|
printf("%-10d %-10d", shmid, ipcp->uid);
|
|
/* ctime uses static buffer: use separate calls */
|
|
printf(" %-20.16s", shmseg.shm_atime
|
|
? ctime(&shmseg.shm_atime) + 4 : "Not set");
|
|
printf(" %-20.16s", shmseg.shm_dtime
|
|
? ctime(&shmseg.shm_dtime) + 4 : "Not set");
|
|
printf(" %-20.16s\n", shmseg.shm_ctime
|
|
? ctime(&shmseg.shm_ctime) + 4 : "Not set");
|
|
break;
|
|
case PID:
|
|
if (pw)
|
|
printf("%-10d %-10.10s", shmid, pw->pw_name);
|
|
else
|
|
printf("%-10d %-10d", shmid, ipcp->uid);
|
|
printf(" %-10d %-10d\n", shmseg.shm_cpid, shmseg.shm_lpid);
|
|
break;
|
|
|
|
default:
|
|
printf("0x%08x ", ipcp->KEY);
|
|
if (pw)
|
|
printf("%-10d %-10.10s", shmid, pw->pw_name);
|
|
else
|
|
printf("%-10d %-10d", shmid, ipcp->uid);
|
|
printf(" %-10o %-10lu %-10ld %-6s %-6s\n", ipcp->mode & 0777,
|
|
/*
|
|
* earlier: int, Austin has size_t
|
|
*/
|
|
(unsigned long) shmseg.shm_segsz,
|
|
/*
|
|
* glibc-2.1.3 and earlier has unsigned short;
|
|
* Austin has shmatt_t
|
|
*/
|
|
(long) shmseg.shm_nattch,
|
|
ipcp->mode & SHM_DEST ? "dest" : " ",
|
|
ipcp->mode & SHM_LOCKED ? "locked" : " ");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void do_sem(void)
|
|
{
|
|
int maxid, semid, id;
|
|
struct semid_ds semary;
|
|
struct seminfo seminfo;
|
|
struct ipc_perm *ipcp = &semary.sem_perm;
|
|
struct passwd *pw;
|
|
union semun arg;
|
|
|
|
arg.array = (ushort *) (void *) &seminfo;
|
|
maxid = semctl(0, 0, SEM_INFO, arg);
|
|
if (maxid < 0) {
|
|
printf("kernel not configured for %s\n", "semaphores");
|
|
return;
|
|
}
|
|
|
|
switch (format) {
|
|
case LIMITS:
|
|
printf("------ Semaphore %s --------\n", "Limits");
|
|
arg.array = (ushort *) (void *) &seminfo; /* damn union */
|
|
if ((semctl(0, 0, IPC_INFO, arg)) < 0)
|
|
return;
|
|
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:
|
|
printf("------ Semaphore %s --------\n", "Status");
|
|
printf( "used arrays = %d\n"
|
|
"allocated semaphores = %d\n",
|
|
seminfo.semusz, seminfo.semaem);
|
|
return;
|
|
|
|
case CREATOR:
|
|
printf("------ Semaphore %s --------\n", "Arrays Creators/Owners");
|
|
printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n",
|
|
"semid", "perms", "cuid", "cgid", "uid", "gid");
|
|
break;
|
|
|
|
case TIME:
|
|
printf("------ Shared Memory %s --------\n", "Operation/Change Times");
|
|
printf( "%-8s %-10s %-26.24s %-26.24s\n",
|
|
"shmid", "owner", "last-op", "last-changed");
|
|
break;
|
|
|
|
case PID:
|
|
break;
|
|
|
|
default:
|
|
printf("------ Semaphore %s --------\n", "Arrays");
|
|
printf( "%-10s %-10s %-10s %-10s %-10s\n",
|
|
"key", "semid", "owner", "perms", "nsems");
|
|
break;
|
|
}
|
|
|
|
for (id = 0; id <= maxid; id++) {
|
|
arg.buf = (struct semid_ds *) &semary;
|
|
semid = semctl(id, 0, SEM_STAT, arg);
|
|
if (semid < 0)
|
|
continue;
|
|
if (format == CREATOR) {
|
|
print_perms(semid, ipcp);
|
|
continue;
|
|
}
|
|
pw = getpwuid(ipcp->uid);
|
|
switch (format) {
|
|
case TIME:
|
|
if (pw)
|
|
printf("%-8d %-10.10s", semid, pw->pw_name);
|
|
else
|
|
printf("%-8d %-10d", semid, ipcp->uid);
|
|
/* ctime uses static buffer: use separate calls */
|
|
printf(" %-26.24s", semary.sem_otime
|
|
? ctime(&semary.sem_otime) : "Not set");
|
|
printf(" %-26.24s\n", semary.sem_ctime
|
|
? ctime(&semary.sem_ctime) : "Not set");
|
|
break;
|
|
case PID:
|
|
break;
|
|
|
|
default:
|
|
printf("0x%08x ", ipcp->KEY);
|
|
if (pw)
|
|
printf("%-10d %-10.9s", semid, pw->pw_name);
|
|
else
|
|
printf("%-10d %-9d", semid, ipcp->uid);
|
|
printf(" %-10o %-10ld\n", ipcp->mode & 0777,
|
|
/*
|
|
* glibc-2.1.3 and earlier has unsigned short;
|
|
* glibc-2.1.91 has variation between
|
|
* unsigned short and unsigned long
|
|
* Austin prescribes unsigned short.
|
|
*/
|
|
(long) semary.sem_nsems);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void do_msg(void)
|
|
{
|
|
int maxid, msqid, id;
|
|
struct msqid_ds msgque;
|
|
struct msginfo msginfo;
|
|
struct ipc_perm *ipcp = &msgque.msg_perm;
|
|
struct passwd *pw;
|
|
|
|
maxid = msgctl(0, MSG_INFO, (struct msqid_ds *) (void *) &msginfo);
|
|
if (maxid < 0) {
|
|
printf("kernel not configured for %s\n", "message queues");
|
|
return;
|
|
}
|
|
|
|
switch (format) {
|
|
case LIMITS:
|
|
if ((msgctl(0, IPC_INFO, (struct msqid_ds *) (void *) &msginfo)) < 0)
|
|
return;
|
|
printf("------ Message%s --------\n", "s: Limits");
|
|
printf( "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:
|
|
printf("------ Message%s --------\n", "s: Status");
|
|
printf( "allocated queues = %d\n"
|
|
"used headers = %d\n"
|
|
"used space = %d bytes\n",
|
|
msginfo.msgpool, msginfo.msgmap, msginfo.msgtql);
|
|
return;
|
|
|
|
case CREATOR:
|
|
printf("------ Message%s --------\n", " Queues: Creators/Owners");
|
|
printf( "%-10s %-10s %-10s %-10s %-10s %-10s\n",
|
|
"msqid", "perms", "cuid", "cgid", "uid", "gid");
|
|
break;
|
|
|
|
case TIME:
|
|
printf("------ Message%s --------\n", " Queues Send/Recv/Change Times");
|
|
printf( "%-8s %-10s %-20s %-20s %-20s\n",
|
|
"msqid", "owner", "send", "recv", "change");
|
|
break;
|
|
|
|
case PID:
|
|
printf("------ Message%s --------\n", " Queues PIDs");
|
|
printf( "%-10s %-10s %-10s %-10s\n",
|
|
"msqid", "owner", "lspid", "lrpid");
|
|
break;
|
|
|
|
default:
|
|
printf("------ Message%s --------\n", " Queues");
|
|
printf( "%-10s %-10s %-10s %-10s %-12s %-12s\n",
|
|
"key", "msqid", "owner", "perms", "used-bytes", "messages");
|
|
break;
|
|
}
|
|
|
|
for (id = 0; id <= maxid; id++) {
|
|
msqid = msgctl(id, MSG_STAT, &msgque);
|
|
if (msqid < 0)
|
|
continue;
|
|
if (format == CREATOR) {
|
|
print_perms(msqid, ipcp);
|
|
continue;
|
|
}
|
|
pw = getpwuid(ipcp->uid);
|
|
switch (format) {
|
|
case TIME:
|
|
if (pw)
|
|
printf("%-8d %-10.10s", msqid, pw->pw_name);
|
|
else
|
|
printf("%-8d %-10d", msqid, ipcp->uid);
|
|
printf(" %-20.16s", msgque.msg_stime
|
|
? ctime(&msgque.msg_stime) + 4 : "Not set");
|
|
printf(" %-20.16s", msgque.msg_rtime
|
|
? ctime(&msgque.msg_rtime) + 4 : "Not set");
|
|
printf(" %-20.16s\n", msgque.msg_ctime
|
|
? ctime(&msgque.msg_ctime) + 4 : "Not set");
|
|
break;
|
|
case PID:
|
|
if (pw)
|
|
printf("%-8d %-10.10s", msqid, pw->pw_name);
|
|
else
|
|
printf("%-8d %-10d", msqid, ipcp->uid);
|
|
printf(" %5d %5d\n", msgque.msg_lspid, msgque.msg_lrpid);
|
|
break;
|
|
|
|
default:
|
|
printf("0x%08x ", ipcp->KEY);
|
|
if (pw)
|
|
printf("%-10d %-10.10s", msqid, pw->pw_name);
|
|
else
|
|
printf("%-10d %-10d", msqid, ipcp->uid);
|
|
printf(" %-10o %-12ld %-12ld\n", ipcp->mode & 0777,
|
|
/*
|
|
* glibc-2.1.3 and earlier has unsigned short;
|
|
* glibc-2.1.91 has variation between
|
|
* unsigned short, unsigned long
|
|
* Austin has msgqnum_t
|
|
*/
|
|
(long) msgque.msg_cbytes, (long) msgque.msg_qnum);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void print_shm(int shmid)
|
|
{
|
|
struct shmid_ds shmds;
|
|
struct ipc_perm *ipcp = &shmds.shm_perm;
|
|
|
|
if (shmctl(shmid, IPC_STAT, &shmds) == -1) {
|
|
bb_perror_msg("shmctl");
|
|
return;
|
|
}
|
|
|
|
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",
|
|
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);
|
|
printf("att_time=%-26.24s\n",
|
|
shmds.shm_atime ? ctime(&shmds.shm_atime) : "Not set");
|
|
printf("det_time=%-26.24s\n",
|
|
shmds.shm_dtime ? ctime(&shmds.shm_dtime) : "Not set");
|
|
printf("change_time=%-26.24s\n\n", ctime(&shmds.shm_ctime));
|
|
}
|
|
|
|
|
|
static void print_msg(int msqid)
|
|
{
|
|
struct msqid_ds buf;
|
|
struct ipc_perm *ipcp = &buf.msg_perm;
|
|
|
|
if (msgctl(msqid, IPC_STAT, &buf) == -1) {
|
|
bb_perror_msg("msgctl");
|
|
return;
|
|
}
|
|
|
|
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",
|
|
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
|
|
* unsigned short, unsigned long
|
|
* 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);
|
|
|
|
printf("send_time=%-26.24s\n",
|
|
buf.msg_stime ? ctime(&buf.msg_stime) : "Not set");
|
|
printf("rcv_time=%-26.24s\n",
|
|
buf.msg_rtime ? ctime(&buf.msg_rtime) : "Not set");
|
|
printf("change_time=%-26.24s\n\n",
|
|
buf.msg_ctime ? ctime(&buf.msg_ctime) : "Not set");
|
|
}
|
|
|
|
static void print_sem(int semid)
|
|
{
|
|
struct semid_ds semds;
|
|
struct ipc_perm *ipcp = &semds.sem_perm;
|
|
union semun arg;
|
|
unsigned int i;
|
|
|
|
arg.buf = &semds;
|
|
if (semctl(semid, 0, IPC_STAT, arg)) {
|
|
bb_perror_msg("semctl");
|
|
return;
|
|
}
|
|
|
|
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",
|
|
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");
|
|
printf("ctime = %-26.24s\n"
|
|
"%-10s %-10s %-10s %-10s %-10s\n",
|
|
ctime(&semds.sem_ctime),
|
|
"semnum", "value", "ncount", "zcount", "pid");
|
|
|
|
arg.val = 0;
|
|
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);
|
|
zcnt = semctl(semid, i, GETZCNT, arg);
|
|
pid = semctl(semid, i, GETPID, arg);
|
|
if (val < 0 || ncnt < 0 || zcnt < 0 || pid < 0) {
|
|
bb_perror_msg_and_die("semctl");
|
|
}
|
|
printf("%-10d %-10d %-10d %-10d %-10d\n", i, val, ncnt, zcnt, pid);
|
|
}
|
|
bb_putchar('\n');
|
|
}
|
|
|
|
int ipcs_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int ipcs_main(int argc ATTRIBUTE_UNUSED, char **argv)
|
|
{
|
|
int id = 0;
|
|
unsigned flags = 0;
|
|
unsigned opt;
|
|
char *opt_i;
|
|
#define flag_print (1<<0)
|
|
#define flag_msg (1<<1)
|
|
#define flag_sem (1<<2)
|
|
#define flag_shm (1<<3)
|
|
|
|
opt = getopt32(argv, "i:aqsmtcplu", &opt_i);
|
|
if (opt & 0x1) { // -i
|
|
id = xatoi(opt_i);
|
|
flags |= flag_print;
|
|
}
|
|
if (opt & 0x2) flags |= flag_msg | flag_sem | flag_shm; // -a
|
|
if (opt & 0x4) flags |= flag_msg; // -q
|
|
if (opt & 0x8) flags |= flag_sem; // -s
|
|
if (opt & 0x10) flags |= flag_shm; // -m
|
|
if (opt & 0x20) format = TIME; // -t
|
|
if (opt & 0x40) format = CREATOR; // -c
|
|
if (opt & 0x80) format = PID; // -p
|
|
if (opt & 0x100) format = LIMITS; // -l
|
|
if (opt & 0x200) format = STATUS; // -u
|
|
|
|
if (flags & flag_print) {
|
|
if (flags & flag_shm) {
|
|
print_shm(id);
|
|
fflush_stdout_and_exit(0);
|
|
}
|
|
if (flags & flag_sem) {
|
|
print_sem(id);
|
|
fflush_stdout_and_exit(0);
|
|
}
|
|
if (flags & flag_msg) {
|
|
print_msg(id);
|
|
fflush_stdout_and_exit(0);
|
|
}
|
|
bb_show_usage();
|
|
}
|
|
|
|
if (!(flags & (flag_shm | flag_msg | flag_sem)))
|
|
flags |= flag_msg | flag_shm | flag_sem;
|
|
bb_putchar('\n');
|
|
|
|
if (flags & flag_shm) {
|
|
do_shm();
|
|
bb_putchar('\n');
|
|
}
|
|
if (flags & flag_sem) {
|
|
do_sem();
|
|
bb_putchar('\n');
|
|
}
|
|
if (flags & flag_msg) {
|
|
do_msg();
|
|
bb_putchar('\n');
|
|
}
|
|
fflush_stdout_and_exit(0);
|
|
}
|