231 lines
5.9 KiB
C
231 lines
5.9 KiB
C
/***************************************************************************
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* Copyright (C) 06/2006 by Olaf Rempel *
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* razzor@kopf-tisch.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <arpa/inet.h>
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#include "configfile.h"
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#include "list.h"
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#include "logging.h"
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#define BUFSIZE 1024
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struct conf_section {
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struct list_head list;
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struct list_head tupel_list;
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char *name;
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};
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struct conf_tupel {
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struct list_head list;
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char *option;
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char *parameter;
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};
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static LIST_HEAD(config_list);
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static struct conf_section * config_add_section(const char *name)
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{
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struct conf_section *section;
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section = malloc(sizeof(struct conf_section) + strlen(name));
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if (section == NULL)
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return NULL;
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INIT_LIST_HEAD(§ion->list);
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INIT_LIST_HEAD(§ion->tupel_list);
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section->name = strdup(name);
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if (section->name == NULL) {
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free(section);
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return NULL;
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}
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list_add_tail(§ion->list, &config_list);
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return section;
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}
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static int config_add_tupel(struct conf_section *section, const char *option, const char *parameter)
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{
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struct conf_tupel *tupel = malloc(sizeof(struct conf_tupel));
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if (tupel == NULL)
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return -1;
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INIT_LIST_HEAD(&tupel->list);
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tupel->option = strdup(option);
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tupel->parameter = strdup(parameter);
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if (tupel->option == NULL || tupel->parameter == NULL) {
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free(tupel);
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return -1;
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}
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list_add_tail(&tupel->list, §ion->tupel_list);
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return 0;
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}
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int config_parse(const char *config)
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{
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FILE *fz = fopen(config, "r");
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if (fz == NULL) {
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log_print(LOG_ERROR, "config_parse(): %s", config);
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return -1;
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}
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char *line = malloc(BUFSIZE);
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if (line == NULL) {
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log_print(LOG_ERROR, "config_parse(): out of memory");
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fclose(fz);
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return -1;
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}
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int linenum = 0;
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struct conf_section *section = NULL;
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while (fgets(line, BUFSIZE, fz) != NULL) {
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linenum++;
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if (line[0] == '#' || line[0] <= ' ') {
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continue;
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} else if (line[0] == '[') {
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char *tok = strtok(line +1, " ]\n");
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if (tok == NULL || (section = config_add_section(tok)) == NULL) {
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log_print(LOG_WARN, "config_parse(): invalid section in row %d", linenum);
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free(line);
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fclose(fz);
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return -1;
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}
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continue;
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} else if (section == NULL) {
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log_print(LOG_WARN, "config_parse(): missing section in row %d", linenum);
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free(line);
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fclose(fz);
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return -1;
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}
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char *tok = strtok(line, " \n");
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if (tok != NULL) {
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char *tok2;
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while ((tok2 = strtok(NULL, " \n"))) {
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if (config_add_tupel(section, tok, tok2) != 0)
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log_print(LOG_WARN, "config_parse(): invalid row %d", linenum);
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}
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}
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}
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fclose(fz);
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free(line);
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return 0;
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}
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static struct conf_section * config_get_section(const char *name)
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{
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struct conf_section *section;
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list_for_each_entry(section, &config_list, list) {
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if (!strcmp(section->name, name))
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return section;
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}
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return NULL;
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}
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char * config_get_string(const char *section_str, const char *option, char *def)
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{
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struct conf_section *section = config_get_section(section_str);
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if (section != NULL) {
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struct conf_tupel *tupel;
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list_for_each_entry(tupel, §ion->tupel_list, list) {
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if (!strcmp(tupel->option, option))
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return tupel->parameter;
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}
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}
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if (def != NULL)
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log_print(LOG_WARN, "config [%s:%s] not found, using default: '%s'",
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section_str, option, def);
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return def;
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}
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int config_get_int(const char *section, const char *option, int def)
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{
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char *ret = config_get_string(section, option, NULL);
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if (ret == NULL) {
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log_print(LOG_WARN, "config [%s:%s] not found, using default: '%d'",
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section, option, def);
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return def;
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}
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return atoi(ret);
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}
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int config_get_strings(const char *section_str, const char *option,
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int (*callback)(const char *value, void *privdata),
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void *privdata)
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{
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struct conf_section *section = config_get_section(section_str);
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if (section == NULL)
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return -1;
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int cnt = 0;
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struct conf_tupel *tupel;
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list_for_each_entry(tupel, §ion->tupel_list, list) {
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if (!strcmp(tupel->option, option))
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if (callback(tupel->parameter, privdata) == 0)
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cnt++;
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}
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return cnt;
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}
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// TODO: wrong place!
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int parse_saddr(const char *addr, struct sockaddr_in *sa)
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{
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char *addr_cpy = strdup(addr);
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if (addr_cpy == NULL) {
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log_print(LOG_WARN, "parse_saddr(): out of memory");
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return -1;
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}
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char *tmp;
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char *ip = strtok_r(addr_cpy, ":", &tmp);
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if (ip == NULL) {
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free(addr_cpy);
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return -1;
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}
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char *port = strtok_r(NULL, ":", &tmp);
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if (port == NULL) {
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free(addr_cpy);
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return -1;
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}
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sa->sin_family = AF_INET;
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sa->sin_port = htons(atoi(port));
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int ret = inet_aton(ip, &sa->sin_addr);
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free(addr_cpy);
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return (ret != 0) ? 0 : -1;
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}
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