along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include <errno.h>
+#include <inttypes.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <xlocale.h>
+
+#include "alloc-util.h"
+#include "extract-word.h"
+#include "macro.h"
#include "parse-util.h"
#include "string-util.h"
-#include "util.h"
int parse_boolean(const char *v) {
assert(v);
assert(s);
assert(ret);
+ s += strspn(s, WHITESPACE);
+ if (s[0] == '-')
+ return -ERANGE;
+
errno = 0;
l = strtol(s, &x, 8);
if (errno != 0)
return -errno;
-
if (!x || x == s || *x)
return -EINVAL;
if (l < 0 || l > 07777)
return 0;
}
+int parse_ifindex(const char *s, int *ret) {
+ int ifi, r;
+
+ r = safe_atoi(s, &ifi);
+ if (r < 0)
+ return r;
+ if (ifi <= 0)
+ return -EINVAL;
+
+ *ret = ifi;
+ return 0;
+}
+
int parse_size(const char *t, uint64_t base, uint64_t *size) {
/* Soo, sometimes we want to parse IEC binary suffixes, and
unsigned i;
p += strspn(p, WHITESPACE);
- if (*p == '-')
- return -ERANGE;
errno = 0;
l = strtoull(p, &e, 10);
- if (errno > 0)
+ if (errno != 0)
return -errno;
if (e == p)
return -EINVAL;
+ if (*p == '-')
+ return -ERANGE;
if (*e == '.') {
e++;
char *e2;
l2 = strtoull(e, &e2, 10);
- if (errno > 0)
+ if (errno != 0)
return -errno;
/* Ignore failure. E.g. 10.M is valid */
return 0;
}
+int parse_range(const char *t, unsigned *lower, unsigned *upper) {
+ _cleanup_free_ char *word = NULL;
+ unsigned l, u;
+ int r;
+
+ assert(lower);
+ assert(upper);
+
+ /* Extract the lower bound. */
+ r = extract_first_word(&t, &word, "-", EXTRACT_DONT_COALESCE_SEPARATORS);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -EINVAL;
+
+ r = safe_atou(word, &l);
+ if (r < 0)
+ return r;
+
+ /* Check for the upper bound and extract it if needed */
+ if (!t)
+ /* Single number with no dashes. */
+ u = l;
+ else if (!*t)
+ /* Trailing dash is an error. */
+ return -EINVAL;
+ else {
+ r = safe_atou(t, &u);
+ if (r < 0)
+ return r;
+ }
+
+ *lower = l;
+ *upper = u;
+ return 0;
+}
+
char *format_bytes(char *buf, size_t l, uint64_t t) {
unsigned i;
assert(s);
assert(ret_u);
- errno = 0;
- l = strtoul(s, &x, 0);
+ /* strtoul() is happy to parse negative values, and silently
+ * converts them to unsigned values without generating an
+ * error. We want a clean error, hence let's look for the "-"
+ * prefix on our own, and generate an error. But let's do so
+ * only after strtoul() validated that the string is clean
+ * otherwise, so that we return EINVAL preferably over
+ * ERANGE. */
- if (!x || x == s || *x || errno)
- return errno > 0 ? -errno : -EINVAL;
+ s += strspn(s, WHITESPACE);
+ errno = 0;
+ l = strtoul(s, &x, 0);
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+ if (s[0] == '-')
+ return -ERANGE;
if ((unsigned long) (unsigned) l != l)
return -ERANGE;
errno = 0;
l = strtol(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno > 0 ? -errno : -EINVAL;
-
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
if ((long) (int) l != l)
return -ERANGE;
assert(s);
assert(ret_llu);
+ s += strspn(s, WHITESPACE);
+
errno = 0;
l = strtoull(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno ? -errno : -EINVAL;
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+ if (*s == '-')
+ return -ERANGE;
*ret_llu = l;
return 0;
errno = 0;
l = strtoll(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno ? -errno : -EINVAL;
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
*ret_lli = l;
return 0;
assert(s);
assert(ret);
+ s += strspn(s, WHITESPACE);
+
errno = 0;
l = strtoul(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno > 0 ? -errno : -EINVAL;
-
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+ if (s[0] == '-')
+ return -ERANGE;
if ((unsigned long) (uint8_t) l != l)
return -ERANGE;
assert(s);
assert(ret);
+ s += strspn(s, WHITESPACE);
+
errno = 0;
l = strtoul(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno > 0 ? -errno : -EINVAL;
-
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+ if (s[0] == '-')
+ return -ERANGE;
if ((unsigned long) (uint16_t) l != l)
return -ERANGE;
errno = 0;
l = strtol(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno > 0 ? -errno : -EINVAL;
-
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
if ((long) (int16_t) l != l)
return -ERANGE;
errno = 0;
d = strtod_l(s, &x, loc);
-
- if (!x || x == s || *x || errno) {
+ if (errno != 0) {
freelocale(loc);
- return errno ? -errno : -EINVAL;
+ return -errno;
+ }
+ if (!x || x == s || *x) {
+ freelocale(loc);
+ return -EINVAL;
}
freelocale(loc);
*ret_d = (double) d;
return 0;
}
+
+int parse_fractional_part_u(const char **p, size_t digits, unsigned *res) {
+ size_t i;
+ unsigned val = 0;
+ const char *s;
+
+ s = *p;
+
+ /* accept any number of digits, strtoull is limted to 19 */
+ for(i=0; i < digits; i++,s++) {
+ if (*s < '0' || *s > '9') {
+ if (i == 0)
+ return -EINVAL;
+
+ /* too few digits, pad with 0 */
+ for (; i < digits; i++)
+ val *= 10;
+
+ break;
+ }
+
+ val *= 10;
+ val += *s - '0';
+ }
+
+ /* maybe round up */
+ if (*s >= '5' && *s <= '9')
+ val++;
+
+ s += strspn(s, DIGITS);
+
+ *p = s;
+ *res = val;
+
+ return 0;
+}
projects / thirdparty / systemd.git / blobdiff