From e8b6e4ea9ccfb2ce29ba85704c0f1ee7a8085826 Mon Sep 17 00:00:00 2001
From: Stefan Schubert <schubi@suse.de>
Date: Fri, 2 Feb 2024 18:46:40 +0100
Subject: [PATCH] added build option login-lastlogin

---
 configure.ac        | 10 ++++++++++
 login-utils/login.c |  4 ++++
 meson.build         |  4 ++++
 meson_options.txt   |  3 +++
 4 files changed, 21 insertions(+)

diff --git a/configure.ac b/configure.ac
index b6434fd0fc..7a0c4f2917 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2403,6 +2403,16 @@ AS_IF([test "x$enable_login_stat_mail" = xyes], [
   AC_DEFINE([LOGIN_STAT_MAIL], [1], [Should login stat() the mailbox?])
 ])
 
+AC_ARG_ENABLE([login-lastlog],
+  AS_HELP_STRING([--enable-login-lastlog], [program login writes lastlog entries]),
+  [], [enable_login_lastlogin=no]
+)
+
+AS_IF([test "x$enable_login_lastlogin" != xno], [
+  AC_DEFINE([USE_LOGIN_LASTLOG],
+	    [1],
+	    [Define if program login writes lastlog entries])
+])
 
 AC_ARG_ENABLE([nologin],
   AS_HELP_STRING([--disable-nologin], [do not build nologin]),
diff --git a/login-utils/login.c b/login-utils/login.c
index c8544f6a17..c3fb1b258f 100644
--- a/login-utils/login.c
+++ b/login-utils/login.c
@@ -662,6 +662,7 @@ static void log_audit(struct login_context *cxt, int status)
 # define log_audit(cxt, status)
 #endif				/* HAVE_LIBAUDIT */
 
+#ifdef USE_LOGIN_LASTLOG
 static void log_lastlog(struct login_context *cxt)
 {
 	struct sigaction sa, oldsa_xfsz;
@@ -728,6 +729,9 @@ done:
 
 	sigaction(SIGXFSZ, &oldsa_xfsz, NULL);		/* restore original setting */
 }
+#else
+# define log_lastlog(cxt)
+#endif 	/* USE_LOGIN_LASTLOG */
 
 /*
  * Update wtmp and utmp logs.
diff --git a/meson.build b/meson.build
index 05c0c992c0..f3fab22c86 100644
--- a/meson.build
+++ b/meson.build
@@ -84,6 +84,10 @@ build_liblastlog2 = not get_option('build-liblastlog2').disabled()
 conf.set('HAVE_LIBLASTLOG2', build_liblastlog2 ? 1 : false)
 summary('liblastlog2', build_liblastlog2 ? 'enabled' : 'disabled', section : 'components')
 
+login_lastlogin = get_option('login-lastlogin')
+conf.set('USE_LOGIN_LASTLOG', login_lastlogin ? 1 : false)
+summary('login-lastlogin', login_lastlogin ? 'enabled' : 'disabled', section : 'components')
+
 have_mountfd_api = cc.sizeof('struct mount_attr', prefix : '#include <linux/mount.h>') > 0
 conf.set('HAVE_STRUCT_MOUNT_ATTR', have_mountfd_api ? 1 : false)
 conf.set('HAVE_MOUNTFD_API', have_mountfd_api ? 1 : false)
diff --git a/meson_options.txt b/meson_options.txt
index b3cdc2dd3e..f6d8adfdda 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -222,3 +222,6 @@ option('pamlibdir', type : 'string',
 option('lastlog-compat-symlink', type : 'boolean',
        value : 'false',
        description : 'create lastlog compat symlink')
+option('login-lastlogin', type : 'boolean',
+       value : 'false',
+       description : 'program login writes lastlog entries')
-- 
2.47.3