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/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 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.
*/
/*
* 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 "sudo_compat.h"
#include "sudo_debug.h"
#include "sudo_util.h"
/*
* Like strtok_r but non-destructive and works w/o a NUL terminator.
* TODO: Optimize by storing current char in a variable ch
*/
const char *
sudo_strsplit_v1(const char *str, const char *endstr, const char *sep, const char **last)
{
const char *cp, *s;
debug_decl(sudo_strsplit, SUDO_DEBUG_UTIL);
/* If no str specified, use last ptr (if any). */
if (str == NULL)
str = *last;
/* Skip leading separator characters. */
while (str < endstr) {
for (s = sep; *s != '\0'; s++) {
if (*str == *s) {
str++;
break;
}
}
if (*s == '\0')
break;
}
/* Empty string? */
if (str >= endstr) {
*last = endstr;
debug_return_ptr(NULL);
}
/* Scan str until we hit a char from sep. */
for (cp = str; cp < endstr; cp++) {
for (s = sep; *s != '\0'; s++) {
if (*cp == *s)
break;
}
if (*s != '\0')
break;
}
*last = cp;
debug_return_const_ptr(str);
}
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