47 lines
1.1 KiB
Diff
47 lines
1.1 KiB
Diff
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From 4be18d32991e73c460ca59c43384f75419602a35 Mon Sep 17 00:00:00 2001
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From: Vladimir Ivanov <ivlad@nxadi.com>
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Date: Fri, 3 Aug 2018 09:44:16 +0800
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Subject: [PATCH 08/19] Log UID in nologin
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Sometimes getlogin() may fail, e.g., in a chroot() environment or due to NSS
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misconfiguration. Loggin UID allows for investigation and troubleshooting in
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such situation.
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---
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src/nologin.c | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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diff --git a/src/nologin.c b/src/nologin.c
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index 7fe8a6a2..98989d26 100644
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--- a/src/nologin.c
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+++ b/src/nologin.c
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@@ -24,7 +24,6 @@
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* SUCH DAMAGE.
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*/
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-#include <config.h>
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#ident "$Id$"
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@@ -36,6 +35,7 @@
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int main (void)
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{
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const char *user, *tty;
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+ uid_t uid;
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tty = ttyname (0);
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if (NULL == tty) {
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@@ -45,8 +45,9 @@ int main (void)
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if (NULL == user) {
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user = "UNKNOWN";
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}
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+ uid = getuid (); /* getuid() is always successful */
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openlog ("nologin", LOG_CONS, LOG_AUTH);
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- syslog (LOG_CRIT, "Attempted login by %s on %s", user, tty);
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+ syslog (LOG_CRIT, "Attempted login by %s (UID: %d) on %s", user, uid, tty);
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closelog ();
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printf ("%s", "This account is currently not available.\n");
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--
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2.19.1
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