| /*! \file msgfile.c |
| * Parse a simple file with messages, e.g used for USSD messages. */ |
| /* |
| * (C) 2010 by Holger Hans Peter Freyther |
| * (C) 2010 by On-Waves |
| * All Rights Reserved |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| * |
| * 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. |
| * |
| */ |
| |
| #define _WITH_GETLINE |
| |
| #include <osmocom/core/msgfile.h> |
| #include <osmocom/core/talloc.h> |
| |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <string.h> |
| #include <stdio.h> |
| |
| static struct osmo_config_entry * |
| alloc_entry(struct osmo_config_list *entries, |
| const char *mcc, const char *mnc, |
| const char *option, const char *text) |
| { |
| struct osmo_config_entry *entry = |
| talloc_zero(entries, struct osmo_config_entry); |
| if (!entry) |
| return NULL; |
| |
| entry->mcc = talloc_strdup(entry, mcc); |
| entry->mnc = talloc_strdup(entry, mnc); |
| entry->option = talloc_strdup(entry, option); |
| entry->text = talloc_strdup(entry, text); |
| |
| llist_add_tail(&entry->list, &entries->entry); |
| return entry; |
| } |
| |
| static struct osmo_config_list *alloc_entries(void *ctx) |
| { |
| struct osmo_config_list *entries; |
| |
| entries = talloc_zero(ctx, struct osmo_config_list); |
| if (!entries) |
| return NULL; |
| |
| INIT_LLIST_HEAD(&entries->entry); |
| return entries; |
| } |
| |
| /* |
| * split a line like 'foo:Text'. |
| */ |
| static void handle_line(struct osmo_config_list *entries, char *line) |
| { |
| int i; |
| const int len = strlen(line); |
| |
| char *items[3]; |
| int last_item = 0; |
| |
| /* Skip comments from the file */ |
| if (line[0] == '#') |
| return; |
| |
| for (i = 0; i < len; ++i) { |
| if (line[i] == '\n' || line[i] == '\r') |
| line[i] = '\0'; |
| else if (line[i] == ':' && last_item < 3) { |
| line[i] = '\0'; |
| |
| items[last_item++] = &line[i + 1]; |
| } |
| } |
| |
| if (last_item == 3) { |
| alloc_entry(entries, &line[0] , items[0], items[1], items[2]); |
| return; |
| } |
| |
| /* nothing found */ |
| } |
| |
| struct osmo_config_list *osmo_config_list_parse(void *ctx, const char *filename) |
| { |
| struct osmo_config_list *entries; |
| size_t n; |
| char *line; |
| FILE *file; |
| |
| file = fopen(filename, "r"); |
| if (!file) |
| return NULL; |
| |
| entries = alloc_entries(ctx); |
| if (!entries) { |
| fclose(file); |
| return NULL; |
| } |
| |
| n = 2342; |
| line = NULL; |
| while (getline(&line, &n, file) != -1) { |
| handle_line(entries, line); |
| } |
| /* The returned getline() buffer needs to be freed even if it failed. It can simply re-use the |
| * buffer that was allocated on the first call. */ |
| free(line); |
| |
| fclose(file); |
| return entries; |
| } |