From e757b43bcf8c439c167f62b6d3317ee9518cabbf Mon Sep 17 00:00:00 2001
From: Tatsuya Kinoshita <tats@debian.org>
Date: Thu, 8 Dec 2016 23:51:09 +0900
Subject: Prevent overflow beyond the end of string in skip_space()

Bug-Debian: https://github.com/tats/w3m/issues/74
---
 table.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'table.c')

diff --git a/table.c b/table.c
index d0aed6c..e996570 100644
--- a/table.c
+++ b/table.c
@@ -2251,6 +2251,7 @@ skip_space(struct table *t, char *line, struct table_linfo *linfo,
     Str prevchar = linfo->prevchar;
     int w = linfo->length;
     int min = 1;
+    char *linez;
 
     if (*line == '<' && line[strlen(line) - 1] == '>') {
 	if (checkminimum)
@@ -2258,7 +2259,8 @@ skip_space(struct table *t, char *line, struct table_linfo *linfo,
 	return 0;
     }
 
-    while (*line) {
+    linez = line + strlen(line);
+    while (line < linez) {
 	char *save = line, *c = line;
 	int ec, len, wlen, plen;
 	ctype = get_mctype(line);
-- 
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