shadow: Fix can not print full login timeout message

Login timed out message prints only first few bytes when write is immediately followed by exit.
Calling exit from new handler provides enough time to display full message.

diff --git a/src/login.c b/src/login.c
index 116e2cb3669c7de1b24fd7623c04cfb03f2f079c..c55f4de0a1da2bbc1b401d2c3b2671de58f39381 100644 (file)
--- a/src/login.c
+++ b/src/login.c
@@ -120,6 +120,7 @@ static void get_pam_user (char **ptr_pam_user);
 
 static void init_env (void);
 static void alarm_handler (int);
+static void exit_handler (int);
 
 /*
  * usage - print login command usage and exit
@@ -391,11 +392,16 @@ static void init_env (void)
 #endif                         /* !USE_PAM */
 }
 
+static void exit_handler (unused int sig)
+{
+       _exit (0);
+}
 
 static void alarm_handler (unused int sig)
 {
        write (STDERR_FILENO, tmsg, strlen (tmsg));
-       _exit (0);
+       signal(SIGALRM, exit_handler);
+       alarm(2);
 }
 
 #ifdef USE_PAM