int rtnl_rtprot_a2n(uint32_t *id, char *arg)
{
static const char *cache = NULL;
static unsigned long res;
int i;
if (cache && strcmp(cache, arg) == 0) {
*id = res;
return 0;
}
rtnl_rtprot_initialize();
for (i = 0; i < 256; i++) {
if (rtnl_rtprot_tab[i] &&
strcmp(rtnl_rtprot_tab[i], arg) == 0) {
cache = rtnl_rtprot_tab[i];
res = i;
*id = res;
return 0;
}
}
res = bb_strtoul(arg, NULL, 0);
if (errno || res > 255)
return -1;
*id = res;
return 0;
}
static int remove_ids(type_id type, char **argv)
{
unsigned long id;
int nb_errors = 0;
union semun arg;
arg.val = 0;
while (argv[0]) {
id = bb_strtoul(argv[0], NULL, 10);
if (errno || id > INT_MAX) {
bb_error_msg("invalid id: %s", argv[0]);
nb_errors++;
} else {
int ret = 0;
if (type == SEM)
ret = semctl(id, 0, IPC_RMID, arg);
else if (type == MSG)
ret = msgctl(id, IPC_RMID, NULL);
else if (type == SHM)
ret = shmctl(id, IPC_RMID, NULL);
if (ret) {
bb_perror_msg("can't remove id %s", argv[0]);
nb_errors++;
}
}
argv++;
}
return nb_errors;
}
unsigned long FAST_FUNC get_ug_id(const char *s,
long FAST_FUNC (*xname2id)(const char *))
{
unsigned long r;
r = bb_strtoul(s, NULL, 10);
if (errno)
return xname2id(s);
return r;
}
static NOINLINE pid_t read_pid(const char *filename)
{
int len;
char buf[128];
len = open_read_close(filename, buf, 127);
if (len > 0) {
buf[len] = '\0';
/* returns ULONG_MAX on error => -1 */
return bb_strtoul(buf, NULL, 10);
}
return 0;
}
/* String to timespec: "NNNN[.NNNNN]" -> struct timespec.
* Can be used for other fixed-point needs.
* Returns pointer past last converted char,
* and returns errno similar to bb_strtoXX functions.
*/
char* FAST_FUNC bb_str_to_ts(struct timespec *ts, const char *arg)
{
if (sizeof(ts->tv_sec) <= sizeof(int))
ts->tv_sec = bb_strtou(arg, &arg, 10);
else if (sizeof(ts->tv_sec) <= sizeof(long))
ts->tv_sec = bb_strtoul(arg, &arg, 10);
else
ts->tv_sec = bb_strtoull(arg, &arg, 10);
ts->tv_nsec = 0;
if (*arg != '.')
return arg;
/* !EINVAL: number is not ok (alphanumeric ending, overflow etc) */
if (errno != EINVAL)
return arg;
if (!*++arg) /* "NNN." */
return arg;
{ /* "NNN.xxx" - parse xxx */
int ndigits;
char *p;
char buf[10]; /* we never use more than 9 digits */
/* Need to make a copy to avoid false overflow */
safe_strncpy(buf, arg, 10);
ts->tv_nsec = bb_strtou(buf, &p, 10);
ndigits = p - buf;
arg += ndigits;
/* normalize to nsec */
while (ndigits < 9) {
ndigits++;
ts->tv_nsec *= 10;
}
while (isdigit(*arg)) /* skip possible 10th plus digits */
arg++;
}
return arg;
}
static void conv_strtoul(const char *arg, void *result)
{
*(unsigned long*)result = bb_strtoul(arg, NULL, 0);
}
int FAST_FUNC
shell_builtin_ulimit(char **argv)
{
unsigned opts;
unsigned argc;
/* We can't use getopt32: need to handle commands like
* ulimit 123 -c2 -l 456
*/
/* In case getopt was already called:
* reset the libc getopt() function, which keeps internal state.
*/
#ifdef __GLIBC__
optind = 0;
#else /* BSD style */
optind = 1;
/* optreset = 1; */
#endif
/* optarg = NULL; opterr = 0; optopt = 0; - do we need this?? */
argc = 1;
while (argv[argc])
argc++;
opts = 0;
while (1) {
struct rlimit limit;
const struct limits *l;
int opt_char = getopt(argc, argv, ulimit_opt_string);
if (opt_char == -1)
break;
if (opt_char == 'H') {
opts |= OPT_hard;
continue;
}
if (opt_char == 'S') {
opts |= OPT_soft;
continue;
}
if (opt_char == 'a') {
for (l = limits_tbl; l != &limits_tbl[ARRAY_SIZE(limits_tbl)]; l++) {
getrlimit(l->cmd, &limit);
printf("-%c: %-30s ", l->option, l->name);
printlim(opts, &limit, l);
}
continue;
}
if (opt_char == 1)
opt_char = 'f';
for (l = limits_tbl; l != &limits_tbl[ARRAY_SIZE(limits_tbl)]; l++) {
if (opt_char == l->option) {
char *val_str;
getrlimit(l->cmd, &limit);
val_str = optarg;
if (!val_str && argv[optind] && argv[optind][0] != '-')
val_str = argv[optind++]; /* ++ skips NN in "-c NN" case */
if (val_str) {
rlim_t val;
if (strcmp(val_str, "unlimited") == 0)
val = RLIM_INFINITY;
else {
if (sizeof(val) == sizeof(int))
val = bb_strtou(val_str, NULL, 10);
else if (sizeof(val) == sizeof(long))
val = bb_strtoul(val_str, NULL, 10);
else
val = bb_strtoull(val_str, NULL, 10);
if (errno) {
bb_error_msg("invalid number '%s'", val_str);
return EXIT_FAILURE;
}
val <<= l->factor_shift;
}
//bb_error_msg("opt %c val_str:'%s' val:%lld", opt_char, val_str, (long long)val);
/* from man bash: "If neither -H nor -S
* is specified, both the soft and hard
* limits are set. */
if (!opts)
opts = OPT_hard + OPT_soft;
if (opts & OPT_hard)
limit.rlim_max = val;
if (opts & OPT_soft)
limit.rlim_cur = val;
//bb_error_msg("setrlimit(%d, %lld, %lld)", l->cmd, (long long)limit.rlim_cur, (long long)limit.rlim_max);
if (setrlimit(l->cmd, &limit) < 0) {
bb_perror_msg("error setting limit");
return EXIT_FAILURE;
}
} else {
printlim(opts, &limit, l);
}
break;
}
} /* for (every possible opt) */
if (l == &limits_tbl[ARRAY_SIZE(limits_tbl)]) {
/* bad option. getopt already complained. */
break;
}
} /* while (there are options) */
return 0;
}
