File _service:tar_scm:backport-libselinux-restorecon... of Package libselinux

File _service:tar_scm:backport-libselinux-restorecon-avoid-printing-NULL-pointer.patch of Package libselinux (Revision 369a123cec6a6c31c4bf2a4cd2fbfe73)

Currently displaying revision 369a123cec6a6c31c4bf2a4cd2fbfe73 , Show latest

From 956bda08f6183078f13b70f6aa27d0529a3ec20a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20G=C3=B6ttsche?= <cgzones@googlemail.com>
Date: Tue, 7 Jun 2022 19:00:35 +0200
Subject: [PATCH] libselinux: restorecon: avoid printing NULL pointer
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The variable `curcon` is NULL in case the file has no current security
context.  Most C standard libraries handle it fine, avoid it nonetheless
for standard conformance.

Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Acked-by: Nicolas Iooss <nicolas.iooss@m4x.org>
---
 src/selinux_restorecon.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/selinux_restorecon.c b/src/selinux_restorecon.c
index 66e6a4a2..2d24559f 100644
--- a/src/selinux_restorecon.c
+++ b/src/selinux_restorecon.c
@@ -744,7 +744,9 @@ static int restorecon_sb(const char *pathname, const struct stat *sb,
 			selinux_log(SELINUX_INFO,
 				    "%s %s from %s to %s\n",
 				    updated ? "Relabeled" : "Would relabel",
-				    pathname, curcon, newcon);
+				    pathname,
+				    curcon ? curcon : "<no context>",
+				    newcon);
 
 		if (flags->syslog_changes && !flags->nochange) {
 			if (curcon)
-- 
2.27.0