2015-09-14 18:37:39 -04:00
|
|
|
/*
|
|
|
|
* ini.c
|
|
|
|
*
|
2016-01-02 22:48:43 -05:00
|
|
|
* Copyright (c) 2013-2016 Pacman Development Team <pacman-dev@archlinux.org>
|
2015-09-14 18:37:39 -04:00
|
|
|
*
|
|
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <errno.h>
|
|
|
|
#include <limits.h>
|
|
|
|
#include <string.h> /* strdup */
|
|
|
|
|
|
|
|
#include <alpm.h>
|
|
|
|
|
|
|
|
#include "ini.h"
|
|
|
|
#include "util.h"
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @brief Parse a pacman-style INI config file.
|
|
|
|
*
|
|
|
|
* @param file path to the config file
|
|
|
|
* @param cb callback for key/value pairs
|
|
|
|
* @param data caller defined data to be passed to the callback
|
|
|
|
*
|
|
|
|
* @return the callback return value
|
|
|
|
*
|
|
|
|
* @note The callback will be called at the beginning of each section with an
|
|
|
|
* empty key and value and for each key/value pair.
|
|
|
|
*
|
|
|
|
* @note If the parser encounters an error the callback will be called with
|
|
|
|
* section, key, and value set to NULL and errno set by fopen, fgets, or
|
|
|
|
* strdup.
|
|
|
|
*
|
|
|
|
* @note The @a key and @a value passed to @ cb will be overwritten between
|
|
|
|
* calls. The section name will remain valid until after @a cb is called to
|
|
|
|
* begin a new section.
|
|
|
|
*
|
|
|
|
* @note Parsing will immediately stop if the callback returns non-zero.
|
|
|
|
*/
|
|
|
|
int parse_ini(const char *file, ini_parser_fn cb, void *data)
|
|
|
|
{
|
|
|
|
char line[PATH_MAX], *section_name = NULL;
|
|
|
|
FILE *fp = NULL;
|
|
|
|
int linenum = 0;
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
fp = fopen(file, "r");
|
|
|
|
if(fp == NULL) {
|
|
|
|
return cb(file, 0, NULL, NULL, NULL, data);
|
|
|
|
}
|
|
|
|
|
|
|
|
while(safe_fgets(line, PATH_MAX, fp)) {
|
|
|
|
char *key, *value, *ptr;
|
|
|
|
size_t line_len;
|
|
|
|
|
|
|
|
linenum++;
|
|
|
|
|
|
|
|
/* ignore whole line and end of line comments */
|
|
|
|
if((ptr = strchr(line, '#'))) {
|
|
|
|
*ptr = '\0';
|
|
|
|
}
|
|
|
|
|
|
|
|
line_len = strtrim(line);
|
|
|
|
|
|
|
|
if(line_len == 0) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(line[0] == '[' && line[line_len - 1] == ']') {
|
|
|
|
char *name;
|
|
|
|
/* new config section, skip the '[' */
|
|
|
|
name = strdup(line + 1);
|
|
|
|
name[line_len - 2] = '\0';
|
|
|
|
|
|
|
|
ret = cb(file, linenum, name, NULL, NULL, data);
|
|
|
|
free(section_name);
|
|
|
|
section_name = name;
|
|
|
|
|
|
|
|
/* we're at a new section; perform any post-actions for the prior */
|
|
|
|
if(ret) {
|
|
|
|
goto cleanup;
|
|
|
|
}
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* directive */
|
|
|
|
/* strsep modifies the 'line' string: 'key \0 value' */
|
|
|
|
key = line;
|
|
|
|
value = line;
|
|
|
|
strsep(&value, "=");
|
|
|
|
strtrim(key);
|
|
|
|
strtrim(value);
|
|
|
|
|
|
|
|
if((ret = cb(file, linenum, section_name, key, value, data)) != 0) {
|
|
|
|
goto cleanup;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
cleanup:
|
|
|
|
fclose(fp);
|
|
|
|
free(section_name);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* vim: set noet: */
|