1 diff -u -r ../util-linux-2.29.1/sys-utils/ipcutils.c ./sys-utils/ipcutils.c
2 --- ../util-linux-2.29.1/sys-utils/ipcutils.c 2016-11-02 13:57:31.661167155 +0100
3 +++ ./sys-utils/ipcutils.c 2017-02-01 23:01:22.043207759 +0100
6 int ipc_msg_get_limits(struct ipc_limits *lim)
8 - if (path_exist(_PATH_PROC_IPC_MSGMNI) &&
9 - path_exist(_PATH_PROC_IPC_MSGMNB) &&
10 - path_exist(_PATH_PROC_IPC_MSGMAX)) {
12 - lim->msgmni = path_read_s32(_PATH_PROC_IPC_MSGMNI);
13 - lim->msgmnb = path_read_s32(_PATH_PROC_IPC_MSGMNB);
14 - lim->msgmax = path_read_s32(_PATH_PROC_IPC_MSGMAX);
16 - struct msginfo msginfo;
18 - if (msgctl(0, IPC_INFO, (struct msqid_ds *) &msginfo) < 0)
20 - lim->msgmni = msginfo.msgmni;
21 - lim->msgmnb = msginfo.msgmnb;
22 - lim->msgmax = msginfo.msgmax;
29 int ipc_sem_get_limits(struct ipc_limits *lim)
34 - lim->semvmx = SEMVMX;
36 - f = path_fopen("r", 0, _PATH_PROC_IPC_SEM);
38 - rc = fscanf(f, "%d\t%d\t%d\t%d",
39 - &lim->semmsl, &lim->semmns, &lim->semopm, &lim->semmni);
45 - struct seminfo seminfo = { .semmni = 0 };
46 - union semun arg = { .array = (ushort *) &seminfo };
48 - if (semctl(0, 0, IPC_INFO, arg) < 0)
50 - lim->semmni = seminfo.semmni;
51 - lim->semmsl = seminfo.semmsl;
52 - lim->semmns = seminfo.semmns;
53 - lim->semopm = seminfo.semopm;
60 int ipc_shm_get_limits(struct ipc_limits *lim)
62 - lim->shmmin = SHMMIN;
64 - if (path_exist(_PATH_PROC_IPC_SHMALL) &&
65 - path_exist(_PATH_PROC_IPC_SHMMAX) &&
66 - path_exist(_PATH_PROC_IPC_SHMMNI)) {
68 - lim->shmall = path_read_u64(_PATH_PROC_IPC_SHMALL);
69 - lim->shmmax = path_read_u64(_PATH_PROC_IPC_SHMMAX);
70 - lim->shmmni = path_read_u64(_PATH_PROC_IPC_SHMMNI);
73 - struct shminfo *shminfo;
74 - struct shmid_ds shmbuf;
76 - if (shmctl(0, IPC_INFO, &shmbuf) < 0)
78 - shminfo = (struct shminfo *) &shmbuf;
79 - lim->shmmni = shminfo->shmmni;
80 - lim->shmall = shminfo->shmall;
81 - lim->shmmax = shminfo->shmmax;
88 int ipc_shm_get_info(int id, struct shm_data **shmds)
94 - struct shmid_ds dummy;
96 - p = *shmds = xcalloc(1, sizeof(struct shm_data));
99 - f = path_fopen("r", 0, _PATH_PROC_SYSV_SHM);
103 - while (fgetc(f) != '\n'); /* skip header */
105 - while (fgets(buf, sizeof(buf), f) != NULL) {
106 - /* scan for the first 14-16 columns (e.g. Linux 2.6.32 has 14) */
107 - p->shm_rss = 0xdead;
108 - p->shm_swp = 0xdead;
110 - "%d %d %o %"SCNu64 " %u %u "
111 - "%"SCNu64 " %u %u %u %u %"SCNi64 " %"SCNi64 " %"SCNi64
112 - " %"SCNu64 " %"SCNu64 "\n",
129 - continue; /* invalid line, skipped */
133 - if (id == p->shm_perm.id) {
140 - p->next = xcalloc(1, sizeof(struct shm_data));
151 - /* Fallback; /proc or /sys file(s) missing. */
153 - maxid = shmctl(0, SHM_INFO, &dummy);
155 - for (int j = 0; j <= maxid; j++) {
157 - struct shmid_ds shmseg;
158 - struct ipc_perm *ipcp = &shmseg.shm_perm;
160 - shmid = shmctl(j, SHM_STAT, &shmseg);
161 - if (shmid < 0 || (id > -1 && shmid != id)) {
166 - p->shm_perm.key = ipcp->KEY;
167 - p->shm_perm.id = shmid;
168 - p->shm_perm.mode = ipcp->mode;
169 - p->shm_segsz = shmseg.shm_segsz;
170 - p->shm_cprid = shmseg.shm_cpid;
171 - p->shm_lprid = shmseg.shm_lpid;
172 - p->shm_nattch = shmseg.shm_nattch;
173 - p->shm_perm.uid = ipcp->uid;
174 - p->shm_perm.gid = ipcp->gid;
175 - p->shm_perm.cuid = ipcp->cuid;
176 - p->shm_perm.cgid = ipcp->cuid;
177 - p->shm_atim = shmseg.shm_atime;
178 - p->shm_dtim = shmseg.shm_dtime;
179 - p->shm_ctim = shmseg.shm_ctime;
180 - p->shm_rss = 0xdead;
181 - p->shm_swp = 0xdead;
184 - p->next = xcalloc(1, sizeof(struct shm_data));
197 void ipc_shm_free_info(struct shm_data *shmds)
200 - struct shm_data *next = shmds->next;
206 -static void get_sem_elements(struct sem_data *p)
210 - if (!p || !p->sem_nsems || p->sem_perm.id < 0)
213 - p->elements = xcalloc(p->sem_nsems, sizeof(struct sem_elem));
215 - for (i = 0; i < p->sem_nsems; i++) {
216 - struct sem_elem *e = &p->elements[i];
217 - union semun arg = { .val = 0 };
219 - e->semval = semctl(p->sem_perm.id, i, GETVAL, arg);
221 - err(EXIT_FAILURE, _("%s failed"), "semctl(GETVAL)");
223 - e->ncount = semctl(p->sem_perm.id, i, GETNCNT, arg);
225 - err(EXIT_FAILURE, _("%s failed"), "semctl(GETNCNT)");
227 - e->zcount = semctl(p->sem_perm.id, i, GETZCNT, arg);
229 - err(EXIT_FAILURE, _("%s failed"), "semctl(GETZCNT)");
231 - e->pid = semctl(p->sem_perm.id, i, GETPID, arg);
233 - err(EXIT_FAILURE, _("%s failed"), "semctl(GETPID)");
238 int ipc_sem_get_info(int id, struct sem_data **semds)
242 - struct sem_data *p;
243 - struct seminfo dummy;
246 - p = *semds = xcalloc(1, sizeof(struct sem_data));
249 - f = path_fopen("r", 0, _PATH_PROC_SYSV_SEM);
253 - while (fgetc(f) != '\n') ; /* skip header */
255 - while (feof(f) == 0) {
257 - "%d %d %o %" SCNu64 " %u %u %u %u %"
258 - SCNi64 " %" SCNi64 "\n",
268 - &p->sem_ctime) != 10)
273 - if (id == p->sem_perm.id) {
274 - get_sem_elements(p);
281 - p->next = xcalloc(1, sizeof(struct sem_data));
292 - /* Fallback; /proc or /sys file(s) missing. */
294 - arg.array = (ushort *) (void *)&dummy;
295 - maxid = semctl(0, 0, SEM_INFO, arg);
297 - for (int j = 0; j <= maxid; j++) {
299 - struct semid_ds semseg;
300 - struct ipc_perm *ipcp = &semseg.sem_perm;
301 - arg.buf = (struct semid_ds *)&semseg;
303 - semid = semctl(j, 0, SEM_STAT, arg);
304 - if (semid < 0 || (id > -1 && semid != id)) {
309 - p->sem_perm.key = ipcp->KEY;
310 - p->sem_perm.id = semid;
311 - p->sem_perm.mode = ipcp->mode;
312 - p->sem_nsems = semseg.sem_nsems;
313 - p->sem_perm.uid = ipcp->uid;
314 - p->sem_perm.gid = ipcp->gid;
315 - p->sem_perm.cuid = ipcp->cuid;
316 - p->sem_perm.cgid = ipcp->cuid;
317 - p->sem_otime = semseg.sem_otime;
318 - p->sem_ctime = semseg.sem_ctime;
321 - p->next = xcalloc(1, sizeof(struct sem_data));
326 - get_sem_elements(p);
337 void ipc_sem_free_info(struct sem_data *semds)
340 - struct sem_data *next = semds->next;
341 - free(semds->elements);
348 int ipc_msg_get_info(int id, struct msg_data **msgds)
352 - struct msg_data *p;
353 - struct msqid_ds dummy;
354 - struct msqid_ds msgseg;
356 - p = *msgds = xcalloc(1, sizeof(struct msg_data));
359 - f = path_fopen("r", 0, _PATH_PROC_SYSV_MSG);
363 - while (fgetc(f) != '\n') ; /* skip header */
365 - while (feof(f) == 0) {
367 - "%d %d %o %" SCNu64 " %" SCNu64
368 - " %u %u %u %u %u %u %" SCNi64 " %" SCNi64 " %" SCNi64 "\n",
382 - &p->q_ctime) != 14)
387 - if (id == p->msg_perm.id) {
388 - if (msgctl(id, IPC_STAT, &msgseg) != -1)
389 - p->q_qbytes = msgseg.msg_qbytes;
396 - p->next = xcalloc(1, sizeof(struct msg_data));
407 - /* Fallback; /proc or /sys file(s) missing. */
409 - maxid = msgctl(0, MSG_INFO, &dummy);
411 - for (int j = 0; j <= maxid; j++) {
413 - struct ipc_perm *ipcp = &msgseg.msg_perm;
415 - msgid = msgctl(j, MSG_STAT, &msgseg);
416 - if (msgid < 0 || (id > -1 && msgid != id)) {
421 - p->msg_perm.key = ipcp->KEY;
422 - p->msg_perm.id = msgid;
423 - p->msg_perm.mode = ipcp->mode;
424 - p->q_cbytes = msgseg.msg_cbytes;
425 - p->q_qnum = msgseg.msg_qnum;
426 - p->q_lspid = msgseg.msg_lspid;
427 - p->q_lrpid = msgseg.msg_lrpid;
428 - p->msg_perm.uid = ipcp->uid;
429 - p->msg_perm.gid = ipcp->gid;
430 - p->msg_perm.cuid = ipcp->cuid;
431 - p->msg_perm.cgid = ipcp->cgid;
432 - p->q_stime = msgseg.msg_stime;
433 - p->q_rtime = msgseg.msg_rtime;
434 - p->q_ctime = msgseg.msg_ctime;
435 - p->q_qbytes = msgseg.msg_qbytes;
438 - p->next = xcalloc(1, sizeof(struct msg_data));
451 void ipc_msg_free_info(struct msg_data *msgds)
454 - struct msg_data *next = msgds->next;
461 void ipc_print_perms(FILE *f, struct ipc_stat *is)
466 - fprintf(f, "%-10d %-10o", is->id, is->mode & 0777);
468 - if ((pw = getpwuid(is->cuid)))
469 - fprintf(f, " %-10s", pw->pw_name);
471 - fprintf(f, " %-10u", is->cuid);
473 - if ((gr = getgrgid(is->cgid)))
474 - fprintf(f, " %-10s", gr->gr_name);
476 - fprintf(f, " %-10u", is->cgid);
478 - if ((pw = getpwuid(is->uid)))
479 - fprintf(f, " %-10s", pw->pw_name);
481 - fprintf(f, " %-10u", is->uid);
483 - if ((gr = getgrgid(is->gid)))
484 - fprintf(f, " %-10s\n", gr->gr_name);
486 - fprintf(f, " %-10u\n", is->gid);
490 void ipc_print_size(int unit, char *msg, uint64_t size, const char *end,
497 - else if (msg[strlen(msg) - 1] == '=')
499 - else if (unit == IPC_UNIT_BYTES)
500 - printf(_("%s (bytes) = "), msg);
501 - else if (unit == IPC_UNIT_KB)
502 - printf(_("%s (kbytes) = "), msg);
504 - printf("%s = ", msg);
507 - case IPC_UNIT_DEFAULT:
508 - case IPC_UNIT_BYTES:
509 - sprintf(format, "%%%dju", width);
510 - printf(format, size);
513 - sprintf(format, "%%%dju", width);
514 - printf(format, size / 1024);
516 - case IPC_UNIT_HUMAN:
517 - sprintf(format, "%%%ds", width);
518 - printf(format, size_to_human_string(SIZE_SUFFIX_1LETTER, size));
521 - /* impossible occurred */