tools: Add utility for looking up APN from database

1 files changed, 235 insertions, 0 deletions

diff --git a/tools/lookup-apn.c b/tools/lookup-apn.c
new file mode 100644
index 00000000..0b8a8313
--- /dev/null
+++ b/tools/lookup-apn.c
@@ -0,0 +1,235 @@
+/*
+ *
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2008-2010  Intel Corporation. All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  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, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+#include <glib.h>
+
+#define PROVIDER_DB  "/usr/share/" \
+			"mobile-broadband-provider-info/serviceproviders.xml"
+
+static gboolean match_found;
+static const char *current_element;
+
+static const char *match_mcc;
+static const char *match_mnc;
+static const char *match_spn;
+
+static char *found_apn;
+static char *found_username;
+static char *found_password;
+
+static void start_element_handler(GMarkupParseContext *context,
+					const gchar *element_name,
+					const gchar **attribute_names,
+					const gchar **attribute_values,
+					gpointer user_data, GError **error)
+{
+	if (g_str_equal(element_name, "network-id") == TRUE) {
+		const char *mcc = NULL, *mnc = NULL;
+		int i;
+
+		for (i = 0; attribute_names[i]; i++) {
+			if (g_str_equal(attribute_names[i], "mcc") == TRUE)
+				mcc = attribute_values[i];
+			if (g_str_equal(attribute_names[i], "mnc") == TRUE)
+				mnc = attribute_values[i];
+		}
+
+		if (g_strcmp0(mcc, match_mcc) == 0 &&
+					g_strcmp0(mnc, match_mnc) == 0)
+			match_found = TRUE;
+	}
+
+	if (match_found == FALSE)
+		return;
+
+	if (g_str_equal(element_name, "apn") == TRUE) {
+		const char *apn = NULL;
+		int i;
+
+		for (i = 0; attribute_names[i]; i++) {
+			if (g_str_equal(attribute_names[i], "value") == TRUE)
+				apn = attribute_values[i];
+		}
+
+		if (found_apn == NULL)
+			found_apn = g_strdup(apn);
+	}
+
+	current_element = element_name;
+}
+
+static void end_element_handler(GMarkupParseContext *context,
+					const gchar *element_name,
+					gpointer user_data, GError **error)
+{
+	if (g_str_equal(element_name, "apn") == TRUE ||
+				g_str_equal(element_name, "gsm") == TRUE ||
+				g_str_equal(element_name, "cdma") == TRUE)
+		match_found = FALSE;
+}
+
+static void text_handler(GMarkupParseContext *context,
+					const gchar *text, gsize text_len,
+					gpointer user_data, GError **error)
+{
+	if (match_found == FALSE || found_apn == NULL)
+		return;
+
+	if (g_strcmp0(current_element, "username") == 0)
+		found_username = g_strndup(text, text_len);
+	else if (g_strcmp0(current_element, "password") == 0)
+		found_password = g_strndup(text, text_len);
+}
+
+static void error_handler(GMarkupParseContext *context,
+					GError *error, gpointer user_data)
+{
+	printf("error\n");
+}
+
+static const GMarkupParser parser = {
+	start_element_handler,
+	end_element_handler,
+	text_handler,
+	NULL,
+	error_handler,
+};
+
+static void parse_database(const char *data, ssize_t size)
+{
+	GMarkupParseContext *context;
+	gboolean result;
+
+	match_found = FALSE;
+
+	context = g_markup_parse_context_new(&parser,
+				G_MARKUP_TREAT_CDATA_AS_TEXT, NULL, NULL);
+
+	result = g_markup_parse_context_parse(context, data, size, NULL);
+	if (result == TRUE)
+		result = g_markup_parse_context_end_parse(context, NULL);
+
+	g_markup_parse_context_free(context);
+}
+
+static int lookup_apn(const char *mcc, const char *mnc, const char *spn)
+{
+	struct stat st;
+	char *map;
+	int fd;
+
+	if (mcc == NULL || mnc == NULL)
+		return -1;
+
+	fd = open(PROVIDER_DB, O_RDONLY);
+	if (fd < 0)
+		return -1;
+
+	if (fstat(fd, &st) < 0) {
+		close(fd);
+		return -1;
+	}
+
+	map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
+	if (map == NULL || map == MAP_FAILED) {
+		close(fd);
+		return -1;
+	}
+
+	match_mcc = mcc;
+	match_mnc = mnc;
+	match_spn = spn;
+
+	found_apn = NULL;
+	found_username = NULL;
+	found_password = NULL;
+
+	parse_database(map, st.st_size);
+
+	munmap(map, st.st_size);
+
+	close(fd);
+
+	printf("Network: %s%s\n", match_mcc, match_mnc);
+	printf("APN: %s\n", found_apn);
+	printf("Username: %s\n", found_username);
+	printf("Password: %s\n", found_password);
+
+	g_free(found_apn);
+	g_free(found_username);
+	g_free(found_password);
+
+	return 0;
+}
+
+static gboolean option_version = FALSE;
+
+static GOptionEntry options[] = {
+	{ "version", 'v', 0, G_OPTION_ARG_NONE, &option_version,
+				"Show version information and exit" },
+	{ NULL },
+};
+
+int main(int argc, char **argv)
+{
+	GOptionContext *context;
+	GError *error = NULL;
+
+	context = g_option_context_new(NULL);
+	g_option_context_add_main_entries(context, options, NULL);
+
+	if (g_option_context_parse(context, &argc, &argv, &error) == FALSE) {
+		if (error != NULL) {
+			g_printerr("%s\n", error->message);
+			g_error_free(error);
+		} else
+			g_printerr("An unknown error occurred\n");
+		exit(1);
+	}
+
+	g_option_context_free(context);
+
+	if (option_version == TRUE) {
+		printf("%s\n", VERSION);
+		exit(0);
+	}
+
+	if (argc < 3) {
+		fprintf(stderr, "Missing parameters\n");
+		exit(1);
+	}
+
+	lookup_apn(argv[1], argv[2], NULL);
+
+	return 0;
+}