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Use non-blocking I/O when opening the tty. Otherwise we can get stuck...

This commit is contained in:
christos 2004-11-07 07:04:31 +00:00
parent 7f3392aa22
commit b22902b65d
1 changed files with 3 additions and 3 deletions
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6
libexec/utmp_update/utmp_update.c
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@ -1,4 +1,4 @@
/* $NetBSD: utmp_update.c,v 1.6 2003/02/26 18:16:50 christos Exp $ */
/* $NetBSD: utmp_update.c,v 1.7 2004/11/07 07:04:31 christos Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: utmp_update.c,v 1.6 2003/02/26 18:16:50 christos Exp $");
__RCSID("$NetBSD: utmp_update.c,v 1.7 2004/11/07 07:04:31 christos Exp $");
#include <sys/types.h>
#include <sys/param.h>
@ -108,7 +108,7 @@ main(int argc, char *argv[])
}
(void)snprintf(tty, sizeof(tty), "%s%s", _PATH_DEV, utx->ut_line);
fd = open(tty, O_RDONLY, 0);
fd = open(tty, O_RDONLY|O_NONBLOCK, 0);
if (fd != -1) {
if (fstat(fd, &st) == -1)
err(1, "Cannot stat `%s'", tty);