Move create_dirs to storage.c, add file read/write utilities

4 files changed, 166 insertions, 66 deletions

diff --git a/Makefile.am b/Makefile.am
index be97ddb1..c15f9c55 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -158,7 +158,7 @@ src_ofonod_SOURCES = $(gdbus_sources) $(builtin_sources) \
 			src/call-meter.c src/smsutil.h src/smsutil.c \
 			src/ssn.c src/call-barring.c src/sim.c \
 			src/phonebook.c src/history.c src/message-waiting.c \
-			src/simutil.h src/simutil.c
+			src/simutil.h src/simutil.c src/storage.h src/storage.c
 
 src_ofonod_LDADD = $(builtin_libadd) \
 			@GLIB_LIBS@ @GTHREAD_LIBS@ @DBUS_LIBS@ -ldl
diff --git a/src/sim.c b/src/sim.c
index f53be9d4..a072c8cc 100644
--- a/src/sim.c
+++ b/src/sim.c
@@ -41,12 +41,7 @@
 #include "util.h"
 #include "smsutil.h"
 #include "simutil.h"
-
-#ifdef TEMP_FAILURE_RETRY
-#define TFR TEMP_FAILURE_RETRY
-#else
-#define TFR
-#endif
+#include "storage.h"
 
 #define SIM_MANAGER_INTERFACE "org.ofono.SimManager"
 
@@ -617,34 +612,6 @@ static void sim_retrieve_imsi(struct ofono_sim *sim)
 	sim->driver->read_imsi(sim, sim_imsi_cb, sim);
 }
 
-static int create_dirs(const char *filename, const mode_t mode)
-{
-	struct stat st;
-	char *dir;
-	const char *prev, *next;
-	int err;
-
-	err = stat(filename, &st);
-	if (!err && S_ISREG(st.st_mode))
-		return 0;
-
-	dir = g_malloc(strlen(filename) + 1);
-	strcpy(dir, "/");
-
-	for (prev = filename; (next = strchr(prev + 1, '/')); prev = next)
-		if (next > prev + 1) {
-			strncat(dir, prev + 1, next - prev);
-
-			if (mkdir(dir, mode) && errno != EEXIST) {
-				g_free(dir);
-				return -1;
-			}
-		}
-
-	g_free(dir);
-	return 0;
-}
-
 static void sim_op_error(struct ofono_sim *sim)
 {
 	struct sim_file_op *op = g_queue_pop_head(sim->simop_q);
@@ -769,33 +736,6 @@ static gboolean sim_op_retrieve_next(gpointer user)
 	return FALSE;
 }
 
-static gboolean cache_info(const char *path, const unsigned char *info, int len)
-{
-	int fd;
-	int r;
-
-	if (create_dirs(path, SIM_CACHE_MODE | S_IXUSR) != 0)
-		return FALSE;
-
-	fd = TFR(open(path, O_WRONLY | O_CREAT, SIM_CACHE_MODE));
-
-	if (fd == -1) {
-		ofono_debug("Error %i creating cache file %s",
-				errno, path);
-		return FALSE;
-	}
-
-	r = TFR(write(fd, info, len));
-	TFR(close(fd));
-
-	if (r < len) {
-		unlink(path);
-		return FALSE;
-	}
-
-	return TRUE;
-}
-
 static void sim_op_info_cb(const struct ofono_error *error, int length,
 				enum ofono_sim_file_structure structure,
 				int record_length,
@@ -838,7 +778,6 @@ static void sim_op_info_cb(const struct ofono_error *error, int length,
 	sim->simop_source = g_timeout_add(0, sim_op_retrieve_next, sim);
 
 	if (op->cache && imsi) {
-		char *path = g_strdup_printf(SIM_CACHE_PATH, imsi, op->id);
 		unsigned char fileinfo[6];
 
 		fileinfo[0] = error->type;
@@ -848,9 +787,9 @@ static void sim_op_info_cb(const struct ofono_error *error, int length,
 		fileinfo[4] = record_length >> 8;
 		fileinfo[5] = record_length & 0xff;
 
-		op->cache = cache_info(path, fileinfo, 6);
-
-		g_free(path);
+		if (write_file(fileinfo, 6, SIM_CACHE_MODE,
+					SIM_CACHE_PATH, imsi, op->id) != 6)
+			op->cache = FALSE;
 	}
 }
 
diff --git a/src/storage.c b/src/storage.c
new file mode 100644
index 00000000..d66f20f4
--- /dev/null
+++ b/src/storage.c
@@ -0,0 +1,125 @@
+/*
+ *
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2008-2009  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
+
+#define _GNU_SOURCE
+#include <string.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <glib.h>
+
+#include <ofono/types.h>
+#include "storage.h"
+
+int create_dirs(const char *filename, const mode_t mode)
+{
+	struct stat st;
+	char *dir;
+	const char *prev, *next;
+	int err;
+
+	err = stat(filename, &st);
+	if (!err && S_ISREG(st.st_mode))
+		return 0;
+
+	dir = g_malloc(strlen(filename) + 1);
+	strcpy(dir, "/");
+
+	for (prev = filename; (next = strchr(prev + 1, '/')); prev = next)
+		if (next > prev + 1) {
+			strncat(dir, prev + 1, next - prev);
+
+			if (mkdir(dir, mode) && errno != EEXIST) {
+				g_free(dir);
+				return -1;
+			}
+		}
+
+	g_free(dir);
+	return 0;
+}
+
+ssize_t read_file(unsigned char *buffer, size_t len,
+			const char *path_fmt, ...) {
+	va_list ap;
+	char *path;
+	ssize_t r;
+	int fd;
+
+	va_start(ap, path_fmt);
+	path = g_strdup_vprintf(path_fmt, ap);
+	va_end(ap);
+
+	fd = TFR(open(path, O_RDONLY));
+
+	g_free(path);
+
+	if (fd == -1)
+		return -1;
+
+	r = TFR(read(fd, buffer, len));
+
+	TFR(close(fd));
+
+	return r;
+}
+
+ssize_t write_file(const unsigned char *buffer, size_t len, mode_t mode,
+			const char *path_fmt, ...) {
+	va_list ap;
+	char *path;
+	ssize_t r;
+	int fd;
+
+	va_start(ap, path_fmt);
+	path = g_strdup_vprintf(path_fmt, ap);
+	va_end(ap);
+
+	if (create_dirs(path, mode | S_IXUSR) != 0) {
+		g_free(path);
+		return -1;
+	}
+
+	fd = TFR(open(path, O_WRONLY | O_CREAT | O_TRUNC, mode));
+	if (fd == -1) {
+		g_free(path);
+		return -1;
+	}
+
+	r = TFR(write(fd, buffer, len));
+
+	TFR(close(fd));
+
+	if (r != (ssize_t) len) {
+		unlink(path);
+		r = -1;
+	}
+
+	g_free(path);
+	return r;
+}
diff --git a/src/storage.h b/src/storage.h
new file mode 100644
index 00000000..305c4a54
--- /dev/null
+++ b/src/storage.h
@@ -0,0 +1,36 @@
+/*
+ *
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2008-2009  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 TEMP_FAILURE_RETRY
+#define TFR TEMP_FAILURE_RETRY
+#else
+#define TFR
+#endif
+
+#include <fcntl.h>
+
+int create_dirs(const char *filename, const mode_t mode);
+
+ssize_t read_file(unsigned char *buffer, size_t len,
+			const char *path_fmt, ...);
+
+ssize_t write_file(const unsigned char *buffer, size_t len, mode_t mode,
+			const char *path_fmt, ...);