From c4c1feac2a7cba8b2c5282810a30b192d0e30623 Mon Sep 17 00:00:00 2001 From: sin Date: Tue, 3 Jun 2014 10:45:27 +0100 Subject: [PATCH] Check if stdin is a tty Some indentation changes as well. --- login.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/login.c b/login.c index 3c8d6e0..b9720e4 100644 --- a/login.c +++ b/login.c @@ -38,6 +38,9 @@ main(int argc, char *argv[]) if (argc < 1) usage(); + if (isatty(STDIN_FILENO) == 0) + eprintf("stdin is not a tty\n"); + errno = 0; pw = getpwnam(argv[0]); if (errno) @@ -59,7 +62,7 @@ main(int argc, char *argv[]) goto login; /* Flush pending input */ - ioctl(STDIN_FILENO, TCFLSH, (void *)0); + ioctl(STDIN_FILENO, TCFLSH, (void *)0); pass = getpass("Password: "); putchar('\n');