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1.8.7

    1: /*
    2:  * Copyright (c) 2010-2012 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: 
   43: int
   44: atobool(const char *str)
   45: {
   46:     debug_decl(atobool, SUDO_DEBUG_UTIL)
   47: 
   48:     switch (*str) {
   49: 	case '0':
   50: 	case '1':
   51: 	    if (str[1] == '\0')
   52: 		return *str - '0';
   53: 	    break;
   54: 	case 'y':
   55: 	case 'Y':
   56: 	    if (strcasecmp(str, "yes") == 0)
   57: 		return 1;
   58: 	    break;
   59: 	case 't':
   60: 	case 'T':
   61: 	    if (strcasecmp(str, "true") == 0)
   62: 		return 1;
   63: 	    break;
   64: 	case 'o':
   65: 	case 'O':
   66: 	    if (strcasecmp(str, "on") == 0)
   67: 		return 1;
   68: 	    if (strcasecmp(str, "off") == 0)
   69: 		return 0;
   70: 	    break;
   71: 	case 'n':
   72: 	case 'N':
   73: 	    if (strcasecmp(str, "no") == 0)
   74: 		return 0;
   75: 	    break;
   76: 	case 'f':
   77: 	case 'F':
   78: 	    if (strcasecmp(str, "false") == 0)
   79: 		return 0;
   80: 	    break;
   81:     }
   82:     debug_return_int(-1);
   83: }