From 54652230d4f22f17a00a96493721c0688c838cd0 Mon Sep 17 00:00:00 2001
From: Matt Kraai <kraai@debian.org>
Date: Wed, 18 Apr 2001 15:51:45 +0000
Subject: Eliminate a segfault when called on an existing file with out an
extension: touch foo && gunzip foo
---
archival/gunzip.c | 4 ++--
gunzip.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/archival/gunzip.c b/archival/gunzip.c
index c3960e953..65f435651 100644
--- a/archival/gunzip.c
+++ b/archival/gunzip.c
@@ -158,9 +158,9 @@ extern int gunzip_main(int argc, char **argv)
delete_old_file = TRUE;
extension = strrchr(if_name, '.');
- if (strcmp(extension, ".gz") == 0) {
+ if (extension && strcmp(extension, ".gz") == 0) {
length -= 3;
- } else if (strcmp(extension, ".tgz") == 0) {
+ } else if (extension && strcmp(extension, ".tgz") == 0) {
length -= 4;
} else {
error_msg_and_die("Invalid extension");
diff --git a/gunzip.c b/gunzip.c
index c3960e953..65f435651 100644
--- a/gunzip.c
+++ b/gunzip.c
@@ -158,9 +158,9 @@ extern int gunzip_main(int argc, char **argv)
delete_old_file = TRUE;
extension = strrchr(if_name, '.');
- if (strcmp(extension, ".gz") == 0) {
+ if (extension && strcmp(extension, ".gz") == 0) {
length -= 3;
- } else if (strcmp(extension, ".tgz") == 0) {
+ } else if (extension && strcmp(extension, ".tgz") == 0) {
length -= 4;
} else {
error_msg_and_die("Invalid extension");
--
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