diff options
Diffstat (limited to 'pty.c')
| -rw-r--r-- | pty.c | 67 |
1 files changed, 0 insertions, 67 deletions
@@ -1,67 +0,0 @@ -/* $OpenBSD$ */ - -/* - * Copyright (c) 2017 Nicholas Marriott <nicholas.marriott@gmail.com> - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER - * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include <sys/types.h> -#include <sys/ioctl.h> -#include <sys/time.h> -#include <sys/tty.h> - -#include <fcntl.h> -#include <string.h> -#include <termios.h> -#include <unistd.h> -#include <util.h> - -int pty_open(int *); -pid_t pty_fork(int, int *, char *, size_t, struct winsize *); - -int -pty_open(int *fd) -{ - *fd = open(PATH_PTMDEV, O_RDWR|O_CLOEXEC); - if (*fd < 0) - return (-1); - return (0); -} - -pid_t -pty_fork(int ptmfd, int *fd, char *name, size_t namelen, struct winsize *ws) -{ - struct ptmget ptm; - pid_t pid; - - if (ioctl(ptmfd, PTMGET, &ptm) == -1) - return (-1); - - strlcpy(name, ptm.sn, namelen); - ioctl(ptm.sfd, TIOCSWINSZ, ws); - - switch (pid = fork()) { - case -1: - close(ptm.cfd); - close(ptm.sfd); - return (-1); - case 0: - close(ptm.cfd); - login_tty(ptm.sfd); - return (0); - } - *fd = ptm.cfd; - close(ptm.sfd); - return (pid); -} |