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/*
* Copyright (c) 2013-2016 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 <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#if defined(HAVE_STDINT_H)
# include <stdint.h>
#elif defined(HAVE_INTTYPES_H)
# include <inttypes.h>
#endif
#ifdef HAVE_STDBOOL_H
# include <stdbool.h>
#else
# include "compat/stdbool.h"
#endif
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#define DEFAULT_TEXT_DOMAIN "sudo"
#include "sudo_gettext.h" /* must be included before sudo_compat.h */
#include "sudo_compat.h"
#include "sudo_debug.h"
#include "sudo_util.h"
/*
* Parse a uid/gid in string form.
* If sep is non-NULL, it contains valid separator characters (e.g. comma, space)
* If endp is non-NULL it is set to the next char after the ID.
* On success, returns the parsed ID and clears errstr.
* On error, returns 0 and sets errstr.
*/
#if SIZEOF_ID_T == SIZEOF_LONG_LONG
id_t
sudo_strtoid_v1(const char *p, const char *sep, char **endp, const char **errstr)
{
char *ep;
id_t ret = 0;
long long llval;
bool valid = false;
debug_decl(sudo_strtoid, SUDO_DEBUG_UTIL)
/* skip leading space so we can pick up the sign, if any */
while (isspace((unsigned char)*p))
p++;
if (sep == NULL)
sep = "";
errno = 0;
llval = strtoll(p, &ep, 10);
if (ep != p) {
/* check for valid separator (including '\0') */
do {
if (*ep == *sep)
valid = true;
} while (*sep++ != '\0');
}
if (!valid) {
if (errstr != NULL)
*errstr = N_("invalid value");
errno = EINVAL;
goto done;
}
if (errno == ERANGE) {
if (errstr != NULL) {
if (llval == LLONG_MAX)
*errstr = N_("value too large");
else
*errstr = N_("value too small");
}
goto done;
}
ret = (id_t)llval;
if (errstr != NULL)
*errstr = NULL;
if (endp != NULL)
*endp = ep;
done:
debug_return_id_t(ret);
}
#else
id_t
sudo_strtoid_v1(const char *p, const char *sep, char **endp, const char **errstr)
{
char *ep;
id_t ret = 0;
bool valid = false;
debug_decl(sudo_strtoid, SUDO_DEBUG_UTIL)
/* skip leading space so we can pick up the sign, if any */
while (isspace((unsigned char)*p))
p++;
if (sep == NULL)
sep = "";
errno = 0;
if (*p == '-') {
long lval = strtol(p, &ep, 10);
if (ep != p) {
/* check for valid separator (including '\0') */
do {
if (*ep == *sep)
valid = true;
} while (*sep++ != '\0');
}
if (!valid) {
if (errstr != NULL)
*errstr = N_("invalid value");
errno = EINVAL;
goto done;
}
if ((errno == ERANGE && lval == LONG_MAX) || lval > INT_MAX) {
errno = ERANGE;
if (errstr != NULL)
*errstr = N_("value too large");
goto done;
}
if ((errno == ERANGE && lval == LONG_MIN) || lval < INT_MIN) {
errno = ERANGE;
if (errstr != NULL)
*errstr = N_("value too small");
goto done;
}
ret = (id_t)lval;
} else {
unsigned long ulval = strtoul(p, &ep, 10);
if (ep != p) {
/* check for valid separator (including '\0') */
do {
if (*ep == *sep)
valid = true;
} while (*sep++ != '\0');
}
if (!valid) {
if (errstr != NULL)
*errstr = N_("invalid value");
errno = EINVAL;
goto done;
}
if ((errno == ERANGE && ulval == ULONG_MAX) || ulval > UINT_MAX) {
errno = ERANGE;
if (errstr != NULL)
*errstr = N_("value too large");
goto done;
}
ret = (id_t)ulval;
}
if (errstr != NULL)
*errstr = NULL;
if (endp != NULL)
*endp = ep;
done:
debug_return_id_t(ret);
}
#endif /* SIZEOF_ID_T == 8 */
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