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termux-packages/packages/util-linux/sys-utils-ipcutils.c.patch

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diff -u -r ../util-linux-2.29.1/sys-utils/ipcutils.c ./sys-utils/ipcutils.c
--- ../util-linux-2.29.1/sys-utils/ipcutils.c 2016-11-02 13:57:31.661167155 +0100
+++ ./sys-utils/ipcutils.c 2017-02-01 23:01:22.043207759 +0100
@@ -18,513 +18,56 @@
int ipc_msg_get_limits(struct ipc_limits *lim)
{
- if (path_exist(_PATH_PROC_IPC_MSGMNI) &&
- path_exist(_PATH_PROC_IPC_MSGMNB) &&
- path_exist(_PATH_PROC_IPC_MSGMAX)) {
-
- lim->msgmni = path_read_s32(_PATH_PROC_IPC_MSGMNI);
- lim->msgmnb = path_read_s32(_PATH_PROC_IPC_MSGMNB);
- lim->msgmax = path_read_s32(_PATH_PROC_IPC_MSGMAX);
- } else {
- struct msginfo msginfo;
-
- if (msgctl(0, IPC_INFO, (struct msqid_ds *) &msginfo) < 0)
- return 1;
- lim->msgmni = msginfo.msgmni;
- lim->msgmnb = msginfo.msgmnb;
- lim->msgmax = msginfo.msgmax;
- }
-
- return 0;
+ return -1;
}
int ipc_sem_get_limits(struct ipc_limits *lim)
{
- FILE *f;
- int rc = 0;
-
- lim->semvmx = SEMVMX;
-
- f = path_fopen("r", 0, _PATH_PROC_IPC_SEM);
- if (f) {
- rc = fscanf(f, "%d\t%d\t%d\t%d",
- &lim->semmsl, &lim->semmns, &lim->semopm, &lim->semmni);
- fclose(f);
-
- }
-
- if (rc != 4) {
- struct seminfo seminfo = { .semmni = 0 };
- union semun arg = { .array = (ushort *) &seminfo };
-
- if (semctl(0, 0, IPC_INFO, arg) < 0)
- return 1;
- lim->semmni = seminfo.semmni;
- lim->semmsl = seminfo.semmsl;
- lim->semmns = seminfo.semmns;
- lim->semopm = seminfo.semopm;
- }
-
- return 0;
+ return -1;
}
int ipc_shm_get_limits(struct ipc_limits *lim)
{
- lim->shmmin = SHMMIN;
-
- if (path_exist(_PATH_PROC_IPC_SHMALL) &&
- path_exist(_PATH_PROC_IPC_SHMMAX) &&
- path_exist(_PATH_PROC_IPC_SHMMNI)) {
-
- lim->shmall = path_read_u64(_PATH_PROC_IPC_SHMALL);
- lim->shmmax = path_read_u64(_PATH_PROC_IPC_SHMMAX);
- lim->shmmni = path_read_u64(_PATH_PROC_IPC_SHMMNI);
-
- } else {
- struct shminfo *shminfo;
- struct shmid_ds shmbuf;
-
- if (shmctl(0, IPC_INFO, &shmbuf) < 0)
- return 1;
- shminfo = (struct shminfo *) &shmbuf;
- lim->shmmni = shminfo->shmmni;
- lim->shmall = shminfo->shmall;
- lim->shmmax = shminfo->shmmax;
- }
-
- return 0;
+ return -1;
}
int ipc_shm_get_info(int id, struct shm_data **shmds)
{
- FILE *f;
- int i = 0, maxid;
- char buf[BUFSIZ];
- struct shm_data *p;
- struct shmid_ds dummy;
-
- p = *shmds = xcalloc(1, sizeof(struct shm_data));
- p->next = NULL;
-
- f = path_fopen("r", 0, _PATH_PROC_SYSV_SHM);
- if (!f)
- goto shm_fallback;
-
- while (fgetc(f) != '\n'); /* skip header */
-
- while (fgets(buf, sizeof(buf), f) != NULL) {
- /* scan for the first 14-16 columns (e.g. Linux 2.6.32 has 14) */
- p->shm_rss = 0xdead;
- p->shm_swp = 0xdead;
- if (sscanf(buf,
- "%d %d %o %"SCNu64 " %u %u "
- "%"SCNu64 " %u %u %u %u %"SCNi64 " %"SCNi64 " %"SCNi64
- " %"SCNu64 " %"SCNu64 "\n",
- &p->shm_perm.key,
- &p->shm_perm.id,
- &p->shm_perm.mode,
- &p->shm_segsz,
- &p->shm_cprid,
- &p->shm_lprid,
- &p->shm_nattch,
- &p->shm_perm.uid,
- &p->shm_perm.gid,
- &p->shm_perm.cuid,
- &p->shm_perm.cgid,
- &p->shm_atim,
- &p->shm_dtim,
- &p->shm_ctim,
- &p->shm_rss,
- &p->shm_swp) < 14)
- continue; /* invalid line, skipped */
-
- if (id > -1) {
- /* ID specified */
- if (id == p->shm_perm.id) {
- i = 1;
- break;
- } else
- continue;
- }
-
- p->next = xcalloc(1, sizeof(struct shm_data));
- p = p->next;
- p->next = NULL;
- i++;
- }
-
- if (i == 0)
- free(*shmds);
- fclose(f);
- return i;
-
- /* Fallback; /proc or /sys file(s) missing. */
-shm_fallback:
- maxid = shmctl(0, SHM_INFO, &dummy);
-
- for (int j = 0; j <= maxid; j++) {
- int shmid;
- struct shmid_ds shmseg;
- struct ipc_perm *ipcp = &shmseg.shm_perm;
-
- shmid = shmctl(j, SHM_STAT, &shmseg);
- if (shmid < 0 || (id > -1 && shmid != id)) {
- continue;
- }
-
- i++;
- p->shm_perm.key = ipcp->KEY;
- p->shm_perm.id = shmid;
- p->shm_perm.mode = ipcp->mode;
- p->shm_segsz = shmseg.shm_segsz;
- p->shm_cprid = shmseg.shm_cpid;
- p->shm_lprid = shmseg.shm_lpid;
- p->shm_nattch = shmseg.shm_nattch;
- p->shm_perm.uid = ipcp->uid;
- p->shm_perm.gid = ipcp->gid;
- p->shm_perm.cuid = ipcp->cuid;
- p->shm_perm.cgid = ipcp->cuid;
- p->shm_atim = shmseg.shm_atime;
- p->shm_dtim = shmseg.shm_dtime;
- p->shm_ctim = shmseg.shm_ctime;
- p->shm_rss = 0xdead;
- p->shm_swp = 0xdead;
-
- if (id < 0) {
- p->next = xcalloc(1, sizeof(struct shm_data));
- p = p->next;
- p->next = NULL;
- } else
- break;
- }
-
- if (i == 0)
- free(*shmds);
- return i;
+ return -1;
}
void ipc_shm_free_info(struct shm_data *shmds)
{
- while (shmds) {
- struct shm_data *next = shmds->next;
- free(shmds);
- shmds = next;
- }
-}
-
-static void get_sem_elements(struct sem_data *p)
-{
- size_t i;
-
- if (!p || !p->sem_nsems || p->sem_perm.id < 0)
- return;
-
- p->elements = xcalloc(p->sem_nsems, sizeof(struct sem_elem));
-
- for (i = 0; i < p->sem_nsems; i++) {
- struct sem_elem *e = &p->elements[i];
- union semun arg = { .val = 0 };
-
- e->semval = semctl(p->sem_perm.id, i, GETVAL, arg);
- if (e->semval < 0)
- err(EXIT_FAILURE, _("%s failed"), "semctl(GETVAL)");
-
- e->ncount = semctl(p->sem_perm.id, i, GETNCNT, arg);
- if (e->ncount < 0)
- err(EXIT_FAILURE, _("%s failed"), "semctl(GETNCNT)");
-
- e->zcount = semctl(p->sem_perm.id, i, GETZCNT, arg);
- if (e->zcount < 0)
- err(EXIT_FAILURE, _("%s failed"), "semctl(GETZCNT)");
-
- e->pid = semctl(p->sem_perm.id, i, GETPID, arg);
- if (e->pid < 0)
- err(EXIT_FAILURE, _("%s failed"), "semctl(GETPID)");
- }
+ return;
}
int ipc_sem_get_info(int id, struct sem_data **semds)
{
- FILE *f;
- int i = 0, maxid;
- struct sem_data *p;
- struct seminfo dummy;
- union semun arg;
-
- p = *semds = xcalloc(1, sizeof(struct sem_data));
- p->next = NULL;
-
- f = path_fopen("r", 0, _PATH_PROC_SYSV_SEM);
- if (!f)
- goto sem_fallback;
-
- while (fgetc(f) != '\n') ; /* skip header */
-
- while (feof(f) == 0) {
- if (fscanf(f,
- "%d %d %o %" SCNu64 " %u %u %u %u %"
- SCNi64 " %" SCNi64 "\n",
- &p->sem_perm.key,
- &p->sem_perm.id,
- &p->sem_perm.mode,
- &p->sem_nsems,
- &p->sem_perm.uid,
- &p->sem_perm.gid,
- &p->sem_perm.cuid,
- &p->sem_perm.cgid,
- &p->sem_otime,
- &p->sem_ctime) != 10)
- continue;
-
- if (id > -1) {
- /* ID specified */
- if (id == p->sem_perm.id) {
- get_sem_elements(p);
- i = 1;
- break;
- } else
- continue;
- }
-
- p->next = xcalloc(1, sizeof(struct sem_data));
- p = p->next;
- p->next = NULL;
- i++;
- }
-
- if (i == 0)
- free(*semds);
- fclose(f);
- return i;
-
- /* Fallback; /proc or /sys file(s) missing. */
-sem_fallback:
- arg.array = (ushort *) (void *)&dummy;
- maxid = semctl(0, 0, SEM_INFO, arg);
-
- for (int j = 0; j <= maxid; j++) {
- int semid;
- struct semid_ds semseg;
- struct ipc_perm *ipcp = &semseg.sem_perm;
- arg.buf = (struct semid_ds *)&semseg;
-
- semid = semctl(j, 0, SEM_STAT, arg);
- if (semid < 0 || (id > -1 && semid != id)) {
- continue;
- }
-
- i++;
- p->sem_perm.key = ipcp->KEY;
- p->sem_perm.id = semid;
- p->sem_perm.mode = ipcp->mode;
- p->sem_nsems = semseg.sem_nsems;
- p->sem_perm.uid = ipcp->uid;
- p->sem_perm.gid = ipcp->gid;
- p->sem_perm.cuid = ipcp->cuid;
- p->sem_perm.cgid = ipcp->cuid;
- p->sem_otime = semseg.sem_otime;
- p->sem_ctime = semseg.sem_ctime;
-
- if (id < 0) {
- p->next = xcalloc(1, sizeof(struct sem_data));
- p = p->next;
- p->next = NULL;
- i++;
- } else {
- get_sem_elements(p);
- break;
- }
- }
-
- if (i == 0)
- free(*semds);
- return i;
+ return -1;
}
void ipc_sem_free_info(struct sem_data *semds)
{
- while (semds) {
- struct sem_data *next = semds->next;
- free(semds->elements);
- free(semds);
- semds = next;
- }
+ return;
}
int ipc_msg_get_info(int id, struct msg_data **msgds)
{
- FILE *f;
- int i = 0, maxid;
- struct msg_data *p;
- struct msqid_ds dummy;
- struct msqid_ds msgseg;
-
- p = *msgds = xcalloc(1, sizeof(struct msg_data));
- p->next = NULL;
-
- f = path_fopen("r", 0, _PATH_PROC_SYSV_MSG);
- if (!f)
- goto msg_fallback;
-
- while (fgetc(f) != '\n') ; /* skip header */
-
- while (feof(f) == 0) {
- if (fscanf(f,
- "%d %d %o %" SCNu64 " %" SCNu64
- " %u %u %u %u %u %u %" SCNi64 " %" SCNi64 " %" SCNi64 "\n",
- &p->msg_perm.key,
- &p->msg_perm.id,
- &p->msg_perm.mode,
- &p->q_cbytes,
- &p->q_qnum,
- &p->q_lspid,
- &p->q_lrpid,
- &p->msg_perm.uid,
- &p->msg_perm.gid,
- &p->msg_perm.cuid,
- &p->msg_perm.cgid,
- &p->q_stime,
- &p->q_rtime,
- &p->q_ctime) != 14)
- continue;
-
- if (id > -1) {
- /* ID specified */
- if (id == p->msg_perm.id) {
- if (msgctl(id, IPC_STAT, &msgseg) != -1)
- p->q_qbytes = msgseg.msg_qbytes;
- i = 1;
- break;
- } else
- continue;
- }
-
- p->next = xcalloc(1, sizeof(struct msg_data));
- p = p->next;
- p->next = NULL;
- i++;
- }
-
- if (i == 0)
- free(*msgds);
- fclose(f);
- return i;
-
- /* Fallback; /proc or /sys file(s) missing. */
-msg_fallback:
- maxid = msgctl(0, MSG_INFO, &dummy);
-
- for (int j = 0; j <= maxid; j++) {
- int msgid;
- struct ipc_perm *ipcp = &msgseg.msg_perm;
-
- msgid = msgctl(j, MSG_STAT, &msgseg);
- if (msgid < 0 || (id > -1 && msgid != id)) {
- continue;
- }
-
- i++;
- p->msg_perm.key = ipcp->KEY;
- p->msg_perm.id = msgid;
- p->msg_perm.mode = ipcp->mode;
- p->q_cbytes = msgseg.msg_cbytes;
- p->q_qnum = msgseg.msg_qnum;
- p->q_lspid = msgseg.msg_lspid;
- p->q_lrpid = msgseg.msg_lrpid;
- p->msg_perm.uid = ipcp->uid;
- p->msg_perm.gid = ipcp->gid;
- p->msg_perm.cuid = ipcp->cuid;
- p->msg_perm.cgid = ipcp->cgid;
- p->q_stime = msgseg.msg_stime;
- p->q_rtime = msgseg.msg_rtime;
- p->q_ctime = msgseg.msg_ctime;
- p->q_qbytes = msgseg.msg_qbytes;
-
- if (id < 0) {
- p->next = xcalloc(1, sizeof(struct msg_data));
- p = p->next;
- p->next = NULL;
- } else
- break;
- }
-
- if (i == 0)
- free(*msgds);
- return i;
+ return -1;
}
void ipc_msg_free_info(struct msg_data *msgds)
{
- while (msgds) {
- struct msg_data *next = msgds->next;
- free(msgds);
- msgds = next;
- }
+ return;
}
void ipc_print_perms(FILE *f, struct ipc_stat *is)
{
- struct passwd *pw;
- struct group *gr;
-
- fprintf(f, "%-10d %-10o", is->id, is->mode & 0777);
-
- if ((pw = getpwuid(is->cuid)))
- fprintf(f, " %-10s", pw->pw_name);
- else
- fprintf(f, " %-10u", is->cuid);
-
- if ((gr = getgrgid(is->cgid)))
- fprintf(f, " %-10s", gr->gr_name);
- else
- fprintf(f, " %-10u", is->cgid);
-
- if ((pw = getpwuid(is->uid)))
- fprintf(f, " %-10s", pw->pw_name);
- else
- fprintf(f, " %-10u", is->uid);
-
- if ((gr = getgrgid(is->gid)))
- fprintf(f, " %-10s\n", gr->gr_name);
- else
- fprintf(f, " %-10u\n", is->gid);
+ return;
}
void ipc_print_size(int unit, char *msg, uint64_t size, const char *end,
int width)
{
- char format[32];
-
- if (!msg)
- /* NULL */ ;
- else if (msg[strlen(msg) - 1] == '=')
- printf("%s", msg);
- else if (unit == IPC_UNIT_BYTES)
- printf(_("%s (bytes) = "), msg);
- else if (unit == IPC_UNIT_KB)
- printf(_("%s (kbytes) = "), msg);
- else
- printf("%s = ", msg);
-
- switch (unit) {
- case IPC_UNIT_DEFAULT:
- case IPC_UNIT_BYTES:
- sprintf(format, "%%%dju", width);
- printf(format, size);
- break;
- case IPC_UNIT_KB:
- sprintf(format, "%%%dju", width);
- printf(format, size / 1024);
- break;
- case IPC_UNIT_HUMAN:
- sprintf(format, "%%%ds", width);
- printf(format, size_to_human_string(SIZE_SUFFIX_1LETTER, size));
- break;
- default:
- /* impossible occurred */
- abort();
- }
-
- if (end)
- printf("%s", end);
+ return;
}
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