From: Michael Tremer <michael.tremer@ipfire.org>
Date: Tue, 20 Oct 2020 20:44:43 +0000 (+0000)
Subject: as: Fix dereferencing NULL pointer when setting AS name
X-Git-Tag: 0.9.5~114
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a7d3a7a0565a0e09d3442e5829a0f30f016993b9;p=location%2Flibloc.git

as: Fix dereferencing NULL pointer when setting AS name

Reported-by: Gisle Vanem <gisle.vanem@gmail.com>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/as.c b/src/as.c
index e1fbb01..8421ac8 100644
--- a/src/as.c
+++ b/src/as.c
@@ -90,7 +90,13 @@ LOC_EXPORT const char* loc_as_get_name(struct loc_as* as) {
 }
 
 LOC_EXPORT int loc_as_set_name(struct loc_as* as, const char* name) {
-	as->name = strdup(name);
+	if (as->name)
+		free(as->name);
+
+	if (name)
+		as->name = strdup(name);
+	else
+		as->name = NULL;
 
 	return 0;
 }