From 010b68580dc50ce183df11cc79721936ab5c4f25 Mon Sep 17 00:00:00 2001
From: Tatsuya Kinoshita <tats@debian.org>
Date: Thu, 18 Aug 2016 19:26:58 +0900
Subject: Prevent segfault with malformed input_alt

Bug-Debian: https://github.com/tats/w3m/issues/18
---
 file.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/file.c b/file.c
index ddc080f..de916bc 100644
--- a/file.c
+++ b/file.c
@@ -3025,9 +3025,9 @@ flushline(struct html_feed_environ *h_env, struct readbuffer *obuf, int indent,
 	tmp = Sprintf("<INPUT_ALT hseq=\"%d\" fid=\"%d\" name=\"%s\" type=\"%s\" value=\"%s\">",
 		     obuf->input_alt.hseq,
 		     obuf->input_alt.fid,
-		     obuf->input_alt.name->ptr,
-		     obuf->input_alt.type->ptr,
-		     obuf->input_alt.value->ptr);
+		     obuf->input_alt.name ? obuf->input_alt.name->ptr : "",
+		     obuf->input_alt.type ? obuf->input_alt.type->ptr : "",
+		     obuf->input_alt.value ? obuf->input_alt.value->ptr : "");
 	push_tag(obuf, tmp->ptr, HTML_INPUT_ALT);
     }
     if (!hidden_bold && obuf->in_bold)
-- 
cgit v1.2.3