Prevent negative array index for realColumn in calcPosition()

Bug-Debian: https://github.com/tats/w3m/issues/69
2016-12-10 22:30:36 +09:00
parent 998b6f91d4
commit 1978455e2e
1 changed files with 1 additions and 1 deletions
--- a/etc.c
+++ b/etc.c
@@ -498,7 +498,7 @@ calcPosition(char *l, Lineprop *pr, int len, int pos, int bpos, int mode)
    static char *prevl = NULL;
    int i, j;

-    if (l == NULL || len == 0)
+    if (l == NULL || len == 0 || pos < 0)
 	return bpos;
    if (l == prevl && mode == CP_AUTO) {
 	if (pos <= len)