/*

 * SPDX-License-Identifier: ISC

 *

 * Copyright (c) 2013-2015 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.

 */

#include <config.h>

#include <sys/stat.h>

#include <stdlib.h>

#include <errno.h>

#include <sudo_compat.h>

#include <sudo_debug.h>

#include <sudo_gettext.h>

#include <sudo_util.h>

/*

 * Parse an octal file mode in the range [0, 0777].

 * On success, returns the parsed mode and clears errstr.

 * On error, returns 0 and sets errstr.

 */

mode_t

sudo_strtomode_v2(const char *cp, const char **errstr)

{

    char *ep;

    long lval;

    debug_decl(sudo_strtomode, SUDO_DEBUG_UTIL);

    errno = 0;

    lval = strtol(cp, &ep, 8);

    if (ep == cp || *ep != '\0') {

  if (errstr != NULL)

      *errstr = N_("invalid value");

  errno = EINVAL;

  debug_return_mode_t(0);

    }

    if (lval < 0 || lval > ACCESSPERMS) {

  if (errstr != NULL)

      *errstr = lval < 0 ? N_("value too small") : N_("value too large");

  errno = ERANGE;

  debug_return_mode_t(0);

    }

    if (errstr != NULL)

  *errstr = NULL;

    debug_return_mode_t((mode_t)lval);

}

int

sudo_strtomode_v1(const char *cp, const char **errstr)

{

    return (int)sudo_strtomode_v2(cp, errstr);

}