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authorTatsuya Kinoshita <tats@debian.org>2016-12-04 15:31:34 +0000
committerTatsuya Kinoshita <tats@debian.org>2016-12-05 12:48:08 +0000
commit6c6a2cbced21ceec2fac08fba1ad271a77f9dbc2 (patch)
treeaa17bf527dd25b9c0cf7c6dc02d083a50ac7b4be
parentPrevent negative array index for marks in shiftAnchorPosition() (diff)
downloadw3m-6c6a2cbced21ceec2fac08fba1ad271a77f9dbc2.tar.gz
w3m-6c6a2cbced21ceec2fac08fba1ad271a77f9dbc2.zip
Prevent negative array index in getMetaRefreshParam()
Bug-Debian: https://github.com/tats/w3m/issues/63
-rw-r--r--file.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/file.c b/file.c
index a87737a..b9ccd86 100644
--- a/file.c
+++ b/file.c
@@ -4378,8 +4378,9 @@ getMetaRefreshParam(char *q, Str *refresh_uri)
r++;
s_tmp = Strnew_charp_n(q, r - q);
- if (s_tmp->ptr[s_tmp->length - 1] == '\"' /* " */
- || s_tmp->ptr[s_tmp->length - 1] == '\'') { /* ' */
+ if (s_tmp->length > 0 &&
+ (s_tmp->ptr[s_tmp->length - 1] == '\"' || /* " */
+ s_tmp->ptr[s_tmp->length - 1] == '\'')) { /* ' */
s_tmp->length--;
s_tmp->ptr[s_tmp->length] = '\0';
}