* add mu_util_create_tmpdir

src/mu-util.c

@@ -111,6 +111,27 @@ mu_util_dir_expand (const char *path)
 	return g_strdup (resolved);
 }
 
+
+char*
+mu_util_create_tmpdir (void)
+{
+	gchar *dirname;
+        dirname =  g_strdup_printf ("%s%cmu-%d%c%x", g_get_tmp_dir(),
+				    G_DIR_SEPARATOR,
+				    getuid(),
+				    G_DIR_SEPARATOR,
+				    (int)random()*getpid()*(int)time(NULL));
+
+	if (!mu_util_create_dir_maybe (dirname)) {
+		g_free (dirname);
+		return NULL;
+	}
+
+	return dirname;
+}
+
+
+
 gboolean
 mu_util_init_system (void)
 {

src/mu-util.h

@@ -81,6 +81,16 @@ gboolean mu_util_create_dir_maybe (const gchar *path)
     G_GNUC_WARN_UNUSED_RESULT;
 
 
+/** 
+ * create a temporary dir (typically, in /tmp) with a unique name,
+ * such that files can be saved there.
+ * 
+ * @return the name of the new dir, or NULL in case of error. Free with g_free
+ */
+char* mu_util_create_tmpdir (void)
+	 	G_GNUC_MALLOC G_GNUC_WARN_UNUSED_RESULT;
+
+
 /**
  * check whether path is a directory, and optionally, if it's readable
  * and/or writeable
@@ -178,7 +188,7 @@ gboolean mu_util_clear_database (const gchar *xpath);
  * @return a newly allocated string
  */
 gchar* mu_util_str_from_strv (const gchar **params)
-        G_GNUC_MALLOC G_GNUC_WARN_UNUSED_RESULT;
+	G_GNUC_MALLOC G_GNUC_WARN_UNUSED_RESULT;
 
 /*
  * for OSs with out support for direntry->d_type, like Solaris