From: Orestis Floros <orestisf1993@gmail.com>
Date: Mon, 25 Sep 2017 23:50:10 +0000 (+0300)
Subject: i3bar: fix segfault when no status_command is provided
X-Git-Tag: 4.15~61^2
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=refs%2Fpull%2F2992%2Fhead;p=i3%2Fi3

i3bar: fix segfault when no status_command is provided

Fixes #2933.
---

diff --git a/i3bar/src/ipc.c b/i3bar/src/ipc.c
index c932aaf7..49c729ae 100644
--- a/i3bar/src/ipc.c
+++ b/i3bar/src/ipc.c
@@ -177,7 +177,7 @@ void got_bar_config_update(char *event) {
 
     /* update the configuration with the received settings */
     DLOG("Received bar config update \"%s\"\n", event);
-    char *old_command = sstrdup(config.command);
+    char *old_command = config.command ? sstrdup(config.command) : NULL;
     bar_display_mode_t old_mode = config.hide_on_modifier;
     parse_config_json(event);
     if (old_mode != config.hide_on_modifier) {
@@ -189,7 +189,7 @@ void got_bar_config_update(char *event) {
     init_colors(&(config.colors));
 
     /* restart status command process */
-    if (strcmp(old_command, config.command) != 0) {
+    if (old_command && strcmp(old_command, config.command) != 0) {
         kill_child();
         start_child(config.command);
     }