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/*
* Copyright (c) 2018 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>
#ifdef HAVE_STRING_H
# include <string.h>
#endif /* HAVE_STRING_H */
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif /* HAVE_STRINGS_H */
#include "sudo_compat.h"
#include "sudo_util.h"
#include "sudo_queue.h"
#include "sudoers_debug.h"
#include "strlist.h"
struct sudoers_string *
sudoers_string_alloc(const char *s)
{
struct sudoers_string *cs;
debug_decl(sudoers_string_alloc, SUDOERS_DEBUG_UTIL)
if ((cs = malloc(sizeof(*cs))) != NULL) {
if ((cs->str = strdup(s)) == NULL) {
free(cs);
cs = NULL;
}
}
debug_return_ptr(cs);
}
void
sudoers_string_free(struct sudoers_string *cs)
{
if (cs != NULL) {
free(cs->str);
free(cs);
}
}
struct sudoers_str_list *
str_list_alloc(void)
{
struct sudoers_str_list *strlist;
debug_decl(str_list_alloc, SUDOERS_DEBUG_UTIL)
strlist = malloc(sizeof(*strlist));
if (strlist != NULL) {
STAILQ_INIT(strlist);
strlist->refcnt = 1;
}
debug_return_ptr(strlist);
}
void
str_list_free(void *v)
{
struct sudoers_str_list *strlist = v;
struct sudoers_string *first;
debug_decl(str_list_free, SUDOERS_DEBUG_UTIL)
if (strlist != NULL) {
if (--strlist->refcnt == 0) {
while ((first = STAILQ_FIRST(strlist)) != NULL) {
STAILQ_REMOVE_HEAD(strlist, entries);
sudoers_string_free(first);
}
free(strlist);
}
}
debug_return;
}
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