mirror of https://github.com/sudo-project/sudo.git
74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
/*
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* SPDX-License-Identifier: ISC
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*
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* Copyright (c) 2015 Todd C. Miller <Todd.Miller@sudo.ws>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* This is an open source non-commercial project. Dear PVS-Studio, please check it.
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* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
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*/
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#include <config.h>
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#include <sudo_compat.h>
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#include <sudo_debug.h>
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#include <sudo_util.h>
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/*
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* Like strtok_r but non-destructive and works w/o a NUL terminator.
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* TODO: Optimize by storing current char in a variable ch
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*/
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const char *
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sudo_strsplit_v1(const char *str, const char *endstr, const char *sep, const char **last)
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{
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const char *cp, *s;
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debug_decl(sudo_strsplit, SUDO_DEBUG_UTIL);
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/* If no str specified, use last ptr (if any). */
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if (str == NULL)
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str = *last;
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/* Skip leading separator characters. */
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while (str < endstr) {
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for (s = sep; *s != '\0'; s++) {
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if (*str == *s) {
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str++;
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break;
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}
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}
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if (*s == '\0')
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break;
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}
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/* Empty string? */
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if (str >= endstr) {
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*last = endstr;
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debug_return_ptr(NULL);
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}
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/* Scan str until we hit a char from sep. */
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for (cp = str; cp < endstr; cp++) {
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for (s = sep; *s != '\0'; s++) {
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if (*cp == *s)
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break;
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}
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if (*s != '\0')
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break;
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}
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*last = cp;
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debug_return_const_ptr(str);
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}
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