From: Guus Sliepen <guus@meshlink.io>
Date: Tue, 5 Jun 2018 18:31:04 +0000 (+0200)
Subject: Fix a potential NULL-pointer dereference when generating invitations.
X-Git-Url: https://git.meshlink.io/?a=commitdiff_plain;h=87d6dff00480a9d354f8b4ade6dfa41cb06118cb;p=meshlink

Fix a potential NULL-pointer dereference when generating invitations.

Closes #47 on GitHub.
---

diff --git a/src/meshlink.c b/src/meshlink.c
index 66d87ee9..885bfba3 100644
--- a/src/meshlink.c
+++ b/src/meshlink.c
@@ -388,7 +388,7 @@ static char *get_my_hostname(meshlink_handle_t *mesh) {
 		return NULL;
 	}
 
-	if(!strcmp(hostname[0], hostname[1])) {
+	if(hostname[0] && hostname[1] && !strcmp(hostname[0], hostname[1])) {
 		free(hostname[1]);
 		hostname[1] = NULL;
 	}