From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sat, 24 Oct 2020 16:49:36 +0000 (-0700)
Subject: switch to safer snprintf in portName()
X-Git-Tag: 2.46.0~20^2^2~4^2~9
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=73db90a0532ed25a0bbead77783a1b2b4352c7d4;p=graphviz

switch to safer snprintf in portName()
---

diff --git a/lib/fdpgen/layout.c b/lib/fdpgen/layout.c
index 935a59a74..c82126f35 100644
--- a/lib/fdpgen/layout.c
+++ b/lib/fdpgen/layout.c
@@ -322,8 +322,8 @@ static char *portName(graph_t * g, bport_t * p)
     node_t *t = agtail(e);
     static char buf[BSZ + 1];
 
-	sprintf(buf, "_port_%s_(%d)_(%d)_%u",agnameof(g), ND_id(t), ND_id(h),
-		AGSEQ(e));
+	snprintf(buf, sizeof(buf), "_port_%s_(%d)_(%d)_%u",agnameof(g),
+		ND_id(t), ND_id(h), AGSEQ(e));
     return buf;
 }