Check if stdin is a tty

Some indentation changes as well.
2014-06-03 10:45:27 +01:00 · 2014-06-03 10:45:27 +01:00 · c4c1feac2a
commit c4c1feac2a
parent b6007ba92b
1 changed files with 4 additions and 1 deletions
--- 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)