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config.c
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config.c
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/*
* These are very basic config file routines for the main module of CNTLM
*
* CNTLM 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.
*
* CNTLM 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
* St, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright (c) 2007 David Kubicek
*
*/
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include "config.h"
#include "utils.h"
#define alnum(c) (isalpha(c) || isdigit(c))
#define blank(c) ((c) == ' ' || (c) == '\t' || (c) == '\r' || (c) == '\n')
config_t config_open(const char *fname) {
config_t ret;
FILE *fp;
char *buf, *key, *value;
int i, j, len;
fp = fopen(fname, "r");
if (!fp)
return NULL;
buf = new(BUFSIZE);
ret = (config_t)new(sizeof(struct config_s));
ret->options = NULL;
while (!feof(fp)) {
fgets(buf, BUFSIZE, fp);
len = MIN(BUFSIZE, strlen(buf));
if (!len || feof(fp))
continue;
i = j = 0;
while (j < len && blank(buf[j]))
j++;
if (j >= len || buf[j] == '#')
continue;
i = j;
while (j < len && alnum(buf[j]))
j++;
if (j >= len || !blank(buf[j]))
continue;
key = substr(buf, i, j-i);
i = j;
while (j < len && blank(buf[j]))
j++;
if (j >= len || buf[j] == '#')
continue;
value = substr(buf, j, len-j);
i = strcspn(value, "#");
if (i != strlen(value))
value[i] = 0;
trimr(value);
ret->options = hlist_add(ret->options, key, value, 0, 0);
}
free(buf);
fclose(fp);
return ret;
}
void config_set(config_t cf, char *option, char *value) {
cf->options = hlist_mod(cf->options, option, value, 1);
}
char *config_pop(config_t cf, const char *option) {
char *tmp;
tmp = hlist_get(cf->options, option);
if (tmp) {
tmp = strdup(tmp);
cf->options = hlist_del(cf->options, option);
}
return tmp;
}
int config_count(config_t cf) {
return hlist_count(cf->options);
}
void config_close(config_t cf) {
if (cf == NULL)
return;
cf->options = hlist_free(cf->options);
free(cf);
}