settings: refactor read_hostname_*()

src/settings/nm-settings.c

@@ -480,27 +480,25 @@ get_plugin (NMSettings *self, guint32 capability)
 static gchar *
 read_hostname_gentoo (const char *path)
 {
-	gchar *contents = NULL, *result = NULL, *tmp;
-	gchar **all_lines = NULL;
-	guint line_num, i;
+	gs_free char *contents = NULL;
+	gs_strfreev char **all_lines = NULL;
+	const char *tmp;
+	guint i;
 
 	if (!g_file_get_contents (path, &contents, NULL, NULL))
 		return NULL;
+
 	all_lines = g_strsplit (contents, "\n", 0);
-	line_num = g_strv_length (all_lines);
-	for (i = 0; i < line_num; i++) {
+	for (i = 0; all_lines[i]; i++) {
 		g_strstrip (all_lines[i]);
 		if (all_lines[i][0] == '#' || all_lines[i][0] == '\0')
 			continue;
 		if (g_str_has_prefix (all_lines[i], "hostname=")) {
 			tmp = &all_lines[i][NM_STRLEN ("hostname=")];
-			result = g_shell_unquote (tmp, NULL);
-			break;
+			return g_shell_unquote (tmp, NULL);
 		}
 	}
-	g_strfreev (all_lines);
-	g_free (contents);
-	return result;
+	return NULL;
 }
 #endif
 
@@ -508,15 +506,16 @@ read_hostname_gentoo (const char *path)
 static gchar *
 read_hostname_slackware (const char *path)
 {
-	gchar *contents = NULL, *result = NULL, *tmp;
-	gchar **all_lines = NULL;
-	guint line_num, i, j = 0;
+	gs_free char *contents = NULL;
+	gs_strfreev char **all_lines = NULL;
+	char *tmp;
+	guint i, j = 0;
 
 	if (!g_file_get_contents (path, &contents, NULL, NULL))
 		return NULL;
+
 	all_lines = g_strsplit (contents, "\n", 0);
-	line_num = g_strv_length (all_lines);
-	for (i = 0; i < line_num; i++) {
+	for (i = 0; all_lines[i]; i++) {
 		g_strstrip (all_lines[i]);
 		if (all_lines[i][0] == '#' || all_lines[i][0] == '\0')
 			continue;
@@ -530,12 +529,9 @@ read_hostname_slackware (const char *path)
 			}
 			j++;
 		}
-		result = g_shell_unquote (tmp, NULL);
-		break;
+		return g_shell_unquote (tmp, NULL);
 	}
-	g_strfreev (all_lines);
-	g_free (contents);
-	return result;
+	return NULL;
 }
 #endif