nextcloud-desktop/src/std/c_string.c
2008-03-25 16:07:58 +01:00

123 lines
2.6 KiB
C

/*
* cynapses libc functions
*
* Copyright (c) 2008 by Andreas Schneider <mail@cynapses.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* vim: ts=2 sw=2 et cindent
*/
#include <errno.h>
#include <stdlib.h>
#include "c_string.h"
#include "c_alloc.h"
#include "c_macro.h"
int c_streq(const char *a, const char *b) {
register const char *s1 = a;
register const char *s2 = b;
if (s1 == NULL || s2 == NULL) {
return 0;
}
while (*s1 == *s2++) {
if (*s1++ == '\0') {
return 1;
}
}
return 0;
}
c_strlist_t *c_strlist_new(size_t size) {
c_strlist_t *strlist = NULL;
if (size == 0) {
errno = EINVAL;
return NULL;
}
strlist = c_malloc(sizeof(c_strlist_t));
if (strlist == NULL) {
return NULL;
}
strlist->vector = (char **) c_malloc(size * sizeof(char *));
if (strlist->vector == NULL) {
SAFE_FREE(strlist);
return NULL;
}
strlist->count = 0;
strlist->size = size;
return strlist;
}
c_strlist_t *c_strlist_expand(c_strlist_t *strlist, size_t size) {
if (strlist == NULL || size == 0) {
errno = EINVAL;
return NULL;
}
if (strlist->size >= size) {
return strlist;
}
strlist->vector = (char **) c_realloc(strlist->vector, size * sizeof(char *));
if (strlist->vector == NULL) {
return NULL;
}
strlist->size = size;
return strlist;
}
int c_strlist_add(c_strlist_t *strlist, const char *string) {
if (strlist == NULL || string == NULL) {
return -1;
}
if (strlist->count < strlist->size) {
strlist->vector[strlist->count] = c_strdup(string);
if (strlist->vector[strlist->count] == NULL) {
return -1;
}
strlist->count++;
} else {
return -1;
}
return 0;
}
void c_strlist_destroy(c_strlist_t *strlist) {
size_t i = 0;
if (strlist == NULL) {
return;
}
for (i = 0; i < strlist->count; i++) {
SAFE_FREE(strlist->vector[i]);
}
SAFE_FREE(strlist->vector);
SAFE_FREE(strlist);
}