runuser: new command (derived from su(1))

 This command is based on su(1), the differences:

 - based on Fedora runuser su(1) patch
 - not installed with suid rights
 - allowed for root users only
 - don't ask for password
 - uses PAM session, for example:

$ cat /etc/pam.d/runuser
auth		sufficient	pam_rootok.so
session		optional	pam_keyinit.so revoke
session		required	pam_limits.so
session		required	pam_unix.so

$ cat /etc/pam.d/runuser-l
auth		include		runuser
session		optional	pam_keyinit.so force revoke
session		include		runuser

Signed-off-by: Karel Zak <kzak@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/login-utils/runuser.c b/login-utils/runuser.c
new file mode 100644
index 000000000..d761a14fc
--- /dev/null
+++ b/login-utils/runuser.c
@@ -0,0 +1,7 @@
+
+#include "su-common.h"
+
+int main(int argv, char **argc)
+{
+	return su_main(argv, argc, RUNUSER_MODE);
+}