1: /*
2: * Copyright (c) 2010-2014 Todd C. Miller <Todd.Miller@courtesan.com>
3: *
4: * Permission to use, copy, modify, and distribute this software for any
5: * purpose with or without fee is hereby granted, provided that the above
6: * copyright notice and this permission notice appear in all copies.
7: *
8: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15: */
16:
17: #include <config.h>
18:
19: #include <sys/types.h>
20:
21: #include <stdio.h>
22: #ifdef STDC_HEADERS
23: # include <stdlib.h>
24: # include <stddef.h>
25: #else
26: # ifdef HAVE_STDLIB_H
27: # include <stdlib.h>
28: # endif
29: #endif /* STDC_HEADERS */
30: #ifdef HAVE_STRING_H
31: # if defined(HAVE_MEMORY_H) && !defined(STDC_HEADERS)
32: # include <memory.h>
33: # endif
34: # include <string.h>
35: #endif /* HAVE_STRING_H */
36: #ifdef HAVE_STRINGS_H
37: # include <strings.h>
38: #endif /* HAVE_STRINGS_H */
39:
40: #include "missing.h"
41: #include "sudo_debug.h"
42: #include "sudo_util.h"
43:
44: int
45: atobool(const char *str)
46: {
47: debug_decl(atobool, SUDO_DEBUG_UTIL)
48:
49: switch (*str) {
50: case '0':
51: case '1':
52: if (str[1] == '\0')
53: debug_return_int(*str - '0');
54: break;
55: case 'y':
56: case 'Y':
57: if (strcasecmp(str, "yes") == 0)
58: debug_return_int(1);
59: break;
60: case 't':
61: case 'T':
62: if (strcasecmp(str, "true") == 0)
63: debug_return_int(1);
64: break;
65: case 'o':
66: case 'O':
67: if (strcasecmp(str, "on") == 0)
68: debug_return_int(1);
69: if (strcasecmp(str, "off") == 0)
70: debug_return_int(0);
71: break;
72: case 'n':
73: case 'N':
74: if (strcasecmp(str, "no") == 0)
75: debug_return_int(0);
76: break;
77: case 'f':
78: case 'F':
79: if (strcasecmp(str, "false") == 0)
80: debug_return_int(0);
81: break;
82: }
83: debug_return_int(-1);
84: }
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