diff options
| -rw-r--r-- | archival/gunzip.c | 4 | ||||
| -rw-r--r-- | gunzip.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/archival/gunzip.c b/archival/gunzip.c index c3960e9..65f4356 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"); @@ -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"); |