Line data    Source code

       1             : /*
       2             :    SSSD
       3             : 
       4             :    SSSD Utility functions
       5             : 
       6             :    Copyright (C) Stephen Gallagher <sgallagh@redhat.com>  2009
       7             : 
       8             :    This program is free software; you can redistribute it and/or modify
       9             :    it under the terms of the GNU General Public License as published by
      10             :    the Free Software Foundation; either version 3 of the License, or
      11             :    (at your option) any later version.
      12             : 
      13             :    This program is distributed in the hope that it will be useful,
      14             :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      16             :    GNU General Public License for more details.
      17             : 
      18             :    You should have received a copy of the GNU General Public License
      19             :    along with this program.  If not, see <http://www.gnu.org/licenses/>.
      20             : */
      21             : 
      22             : #include <ctype.h>
      23             : #include <stdlib.h>
      24             : #include <errno.h>
      25             : #include "config.h"
      26             : #include "util/util.h"
      27             : #include "util/strtonum.h"
      28             : 
      29             : /* strtoint32 */
      30         884 : int32_t strtoint32(const char *nptr, char **endptr, int base)
      31             : {
      32         884 :     long long ret = 0;
      33             : 
      34         884 :     errno = 0;
      35         884 :     ret = strtoll(nptr, endptr, base);
      36             : 
      37         884 :     if (ret > INT32_MAX) {
      38           1 :         errno = ERANGE;
      39           1 :         return INT32_MAX;
      40             :     }
      41         883 :     else if (ret < INT32_MIN) {
      42           1 :         errno = ERANGE;
      43           1 :         return INT32_MIN;
      44             :     }
      45             : 
      46             :     /* If errno was set by strtoll, we'll pass it back as-is */
      47         882 :     return (int32_t)ret;
      48             : }
      49             : 
      50             : 
      51             : /* strtouint32 */
      52          97 : uint32_t strtouint32(const char *nptr, char **endptr, int base)
      53             : {
      54          97 :     unsigned long long ret = 0;
      55          97 :     errno = 0;
      56          97 :     ret = strtoull(nptr, endptr, base);
      57             : 
      58          97 :     if (ret > UINT32_MAX) {
      59           4 :         errno = ERANGE;
      60           4 :         return UINT32_MAX;
      61             :     }
      62             : 
      63             :     /* If errno was set by strtoll, we'll pass it back as-is */
      64          93 :     return (uint32_t)ret;
      65             : }
      66             : 
      67             : 
      68             : /* strtouint16 */
      69           8 : uint16_t strtouint16(const char *nptr, char **endptr, int base)
      70             : {
      71           8 :     unsigned long long ret = 0;
      72           8 :     errno = 0;
      73           8 :     ret = strtoull(nptr, endptr, base);
      74             : 
      75           8 :     if (ret > UINT16_MAX) {
      76           2 :         errno = ERANGE;
      77           2 :         return UINT16_MAX;
      78             :     }
      79             : 
      80             :     /* If errno was set by strtoll, we'll pass it back as-is */
      81           6 :     return (uint16_t)ret;
      82             : }
      83             :