diff options
Diffstat (limited to 'sshpty.c')
| -rw-r--r-- | sshpty.c | 22 |
1 files changed, 18 insertions, 4 deletions
@@ -1,4 +1,4 @@ -/* $OpenBSD: sshpty.c,v 1.30 2015/07/30 23:09:15 djm Exp $ */ +/* $OpenBSD: sshpty.c,v 1.31 2016/11/29 03:54:50 dtucker Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -155,11 +155,11 @@ pty_make_controlling_tty(int *ttyfd, const char *tty) error("SETPGRP %s",strerror(errno)); #endif /* NEED_SETPGRP */ fd = open(tty, O_RDWR); - if (fd < 0) { + if (fd < 0) error("%.100s: %.100s", tty, strerror(errno)); - } else { + else close(fd); - } + /* Verify that we now have a controlling tty. */ fd = open(_PATH_TTY, O_WRONLY); if (fd < 0) @@ -238,3 +238,17 @@ pty_setowner(struct passwd *pw, const char *tty) } } } + +/* Disconnect from the controlling tty. */ +void +disconnect_controlling_tty(void) +{ +#ifdef TIOCNOTTY + int fd; + + if ((fd = open(_PATH_TTY, O_RDWR | O_NOCTTY)) >= 0) { + (void) ioctl(fd, TIOCNOTTY, NULL); + close(fd); + } +#endif /* TIOCNOTTY */ +} |