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/* config file parser functions
* (C) 2000 by Harald Welte <laforge@gnumonks.org>
*
* $Id$
*
* This code is distributed under the terms of GNU GPL */
#include <stdio.h>
#include <string.h>
#include "conffile.h"
#ifdef DEBUG_CONF
#define DEBUGC(format, args...) fprintf(stderr, format ## args)
#else
#define DEBUGC
#endif
static config_entry_t *config = NULL;
static char *get_word(const char *string)
{
int len;
char *word, *space;
space = strchr(string, ' ');
if (!space)
return NULL;
len = space - string;
word = (char *) malloc(len+1);
if (!word)
return NULL;
strncpy(word, string, len);
return word;
}
int config_register_key(config_entry_t *ce)
{
ce->next = config;
ce->hit = 0;
config = ce;
return 0;
}
int config_parse_file(const char *fname)
{
FILE *cfile;
char *line, *word, *args;
config_entry_t *ce;
line = (char *) malloc(LINE_LEN+1);
if (!line)
return -ERROOM;
cfile = fopen(fname, "r");
if (!cfile) {
free(line);
return -ERROPEN;
}
while (line = fgets(line, LINE_LEN, cfile))
{
if (*line == '#')
continue;
word = get_word(line);
if (!word)
continue;
args = line + strlen(word) + 1;
for (ce = config; ce; ce = ce->next) {
if (strcmp(ce->key, word)) {
continue;
}
if (ce->hit && !(ce->options & CONFIG_OPT_MULTI))
{
DEBUGC("->ce-hit and option not multi!\n");
free(line);
fclose(cfile);
return -ERRMULT;
}
ce->hit++;
switch (ce->type) {
case CONFIG_TYPE_STRING:
if (strlen(args) <= ce->u.str.maxlen) {
strcpy(ce->u.str.string, args);
}
break;
case CONFIG_TYPE_INT:
ce->u.value = atoi(args);
break;
case CONFIG_TYPE_CALLBACK:
(ce->u.parser)(args);
break;
}
break;
}
}
for (ce = config; ce; ce = ce->next) {
if ((ce->options & CONFIG_OPT_MANDATORY) && (ce->hit == 0)) {
DEBUGC("mandatory config directive %s not found\n",
ce->key);
free(line);
fclose(cfile);
return -ERRMAND;
}
}
fclose(cfile);
return 0;
}
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