Prevent segfault for formUpdateBuffer

Bug-Debian: https://github.com/tats/w3m/issues/9 Bug-Debian: https://github.com/tats/w3m/issues/10
2016-08-15 20:07:56 +09:00
parent f9adc2d4b4
commit 9f0bdcfdf0
1 changed files with 2 additions and 0 deletions
--- a/form.c
+++ b/form.c
@@ -477,6 +477,8 @@ formUpdateBuffer(Anchor *a, Buffer *buf, FormItemList *form)
 		spos = a->start.pos;
 		epos = a->end.pos;
 	    }
+	    if (a->start.line != a->end.line || spos > epos)
+		epos = spos;
 	    pos = form_update_line(l, &p, spos, epos, COLPOS(l, epos) - col,
 				   rows > 1,
 				   form->type == FORM_INPUT_PASSWORD);