/*

 * SPDX-License-Identifier: ISC

 *

 * Copyright (c) 2010-2016 Todd C. Miller <Todd.Miller@sudo.ws>

 *

 * Permission to use, copy, modify, and distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */

/*

 * This is an open source non-commercial project. Dear PVS-Studio, please check it.

 * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com

 */

#include <config.h>

#include <string.h>

#ifdef HAVE_STRINGS_H

# include <strings.h>

#endif /* HAVE_STRINGS_H */

#include <sudo_compat.h>

#include <sudo_debug.h>

#include <sudo_util.h>

int

sudo_strtobool_v1(const char *str)

{

    debug_decl(sudo_strtobool, SUDO_DEBUG_UTIL);

    switch (*str) {

  case '0':

  case '1':

      if (str[1] == '\0')

    debug_return_int(*str - '0');

      break;

  case 'y':

  case 'Y':

      if (strcasecmp(str, "yes") == 0)

    debug_return_int(1);

      break;

  case 't':

  case 'T':

      if (strcasecmp(str, "true") == 0)

    debug_return_int(1);

      break;

  case 'o':

  case 'O':

      if (strcasecmp(str, "on") == 0)

    debug_return_int(1);

      if (strcasecmp(str, "off") == 0)

    debug_return_int(0);

      break;

  case 'n':

  case 'N':

      if (strcasecmp(str, "no") == 0)

    debug_return_int(0);

      break;

  case 'f':

  case 'F':

      if (strcasecmp(str, "false") == 0)

    debug_return_int(0);

      break;

    }

    sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO,

  "invalid boolean value \"%s\"", str);

    debug_return_int(-1);

}