From: Jean-Yves Migeon <jeanyves.migeon@free.fr>
Date: Thu, 5 Sep 2013 13:27:52 +0000 (+0200)
Subject: Bug fix (segfault): check filename against NULL in case we want
X-Git-Tag: v3.1.900a~353^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a79624032e5499570ec4f7bee3edfbe7cba6c9a9;p=thirdparty%2Flibarchive.git

Bug fix (segfault): check filename against NULL in case we want
the output to go to stdout.
---

diff --git a/examples/minitar/minitar.c b/examples/minitar/minitar.c
index 709947cfa..6b8b4f194 100644
--- a/examples/minitar/minitar.c
+++ b/examples/minitar/minitar.c
@@ -249,7 +249,7 @@ create(const char *filename, int compress, const char **argv)
 		break;
 	}
 	archive_write_set_format_ustar(a);
-	if (strcmp(filename, "-") == 0)
+	if (filename != NULL && strcmp(filename, "-") == 0)
 		filename = NULL;
 	archive_write_open_filename(a, filename);