static int deprecated_main(int argc, char **argv)
{
execname = argv[0];
if (argc < 3) {
deprecate_display_usage();
exit(1);
}
if (!strcmp(argv[1], "shm")) {
if (remove_ids(SHM, argc-2, &argv[2]))
exit(1);
}
else if (!strcmp(argv[1], "msg")) {
if (remove_ids(MSG, argc-2, &argv[2]))
exit(1);
}
else if (!strcmp(argv[1], "sem")) {
if (remove_ids(SEM, argc-2, &argv[2]))
exit(1);
}
else {
deprecate_display_usage();
printf (_("unknown resource type: %s\n"), argv[1]);
exit(1);
}
printf (_("resource(s) deleted\n"));
return 0;
}
int ipcrm_main(int argc, char **argv)
{
int c;
int error = 0;
/* if the command is executed without parameters, do nothing */
if (argc == 1)
return 0;
#if IPCRM_LEGACY
/* check to see if the command is being invoked in the old way if so
then run the old code. Valid commands are msg, shm, sem. */
{
type_id what = 0; /* silence gcc */
char w;
w = argv[1][0];
if ( ((w == 'm' && argv[1][1] == 's' && argv[1][2] == 'g')
|| (argv[1][0] == 's'
&& ((w = argv[1][1]) == 'h' || w == 'e')
&& argv[1][2] == 'm')
) && argv[1][3] == '\0'
) {
if (argc < 3)
bb_show_usage();
if (w == 'h')
what = SHM;
else if (w == 'm')
what = MSG;
else if (w == 'e')
what = SEM;
if (remove_ids(what, &argv[2]))
fflush_stdout_and_exit(EXIT_FAILURE);
printf("resource(s) deleted\n");
return 0;
}
}
#endif /* IPCRM_LEGACY */
/* process new syntax to conform with SYSV ipcrm */
while ((c = getopt(argc, argv, "q:m:s:Q:M:S:h?")) != -1) {
int result;
int id = 0;
int iskey = isupper(c);
/* needed to delete semaphores */
union semun arg;
arg.val = 0;
if ((c == '?') || (c == 'h')) {
bb_show_usage();
}
/* we don't need case information any more */
c = tolower(c);
/* make sure the option is in range: allowed are q, m, s */
if (c != 'q' && c != 'm' && c != 's') {
bb_show_usage();
}
if (iskey) {
/* keys are in hex or decimal */
key_t key = xstrtoul(optarg, 0);
if (key == IPC_PRIVATE) {
error++;
bb_error_msg("illegal key (%s)", optarg);
continue;
}
/* convert key to id */
id = ((c == 'q') ? msgget(key, 0) :
(c == 'm') ? shmget(key, 0, 0) : semget(key, 0, 0));
if (id < 0) {
const char *errmsg;
error++;
switch (errno) {
case EACCES:
errmsg = "permission denied for";
break;
case EIDRM:
errmsg = "already removed";
break;
case ENOENT:
errmsg = "invalid";
break;
default:
errmsg = "unknown error in";
break;
}
bb_error_msg("%s %s (%s)", errmsg, "key", optarg);
continue;
}
} else {
/* ids are in decimal */
id = xatoul(optarg);
}
result = ((c == 'q') ? msgctl(id, IPC_RMID, NULL) :
(c == 'm') ? shmctl(id, IPC_RMID, NULL) :
semctl(id, 0, IPC_RMID, arg));
if (result) {
const char *errmsg;
const char *const what = iskey ? "key" : "id";
error++;
switch (errno) {
case EACCES:
case EPERM:
errmsg = "permission denied for";
break;
case EINVAL:
errmsg = "invalid";
break;
case EIDRM:
errmsg = "already removed";
break;
default:
errmsg = "unknown error in";
break;
}
bb_error_msg("%s %s (%s)", errmsg, what, optarg);
continue;
}
}
/* print usage if we still have some arguments left over */
if (optind != argc) {
bb_show_usage();
}
/* exit value reflects the number of errors encountered */
return error;
}
