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less: fix SEGV

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testcase: echo "" | less, then press ')' key

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2016-08-16 15:09:40 +02:00
parent 560cf8c7eb
commit 252559601f
1 changed files with 6 additions and 2 deletions
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8
miscutils/less.c
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@ -1591,7 +1591,9 @@ static void match_right_bracket(char bracket)
{
unsigned i;
if (strchr(flines[cur_fline], bracket) == NULL) {
if (cur_fline >= max_fline
|| strchr(flines[cur_fline], bracket) == NULL
) {
print_statusline("No bracket in top line");
return;
}
@ -1609,7 +1611,9 @@ static void match_left_bracket(char bracket)
{
int i;
if (strchr(flines[cur_fline + max_displayed_line], bracket) == NULL) {
if (cur_fline + max_displayed_line >= max_fline
|| strchr(flines[cur_fline + max_displayed_line], bracket) == NULL
) {
print_statusline("No bracket in bottom line");
return;
}