diff options
Diffstat (limited to 'sysdeps/generic/pty.c')
| -rw-r--r-- | sysdeps/generic/pty.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/sysdeps/generic/pty.c b/sysdeps/generic/pty.c deleted file mode 100644 index 75c7857..0000000 --- a/sysdeps/generic/pty.c +++ /dev/null @@ -1,140 +0,0 @@ -/*- - * Copyright (c) 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)pty.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/cdefs.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/ioctl.h> -#include <fcntl.h> -#include <termios.h> -#include <errno.h> -#include <unistd.h> -#include <stdio.h> -#include <string.h> -#include <grp.h> -#include <pty.h> -#include <utmp.h> - -#ifndef REVOKE -# define REVOKE(Line) revoke (Line) -#endif - -int -openpty(amaster, aslave, name, termp, winp) - int *amaster, *aslave; - char *name; - struct termios *termp; - struct winsize *winp; -{ - char line[11]; - register const char *cp1, *cp2; - register int master, slave, ttygid; - size_t buflen = sysconf (_SC_GETGR_R_SIZE_MAX); - char buffer[buflen]; - struct group grbuffer; - struct group *gr; - - strcpy (line, "/dev/ptyXX"); - - if (getgrnam_r("tty", &grbuffer, buffer, buflen, &gr) >= 0) - ttygid = gr->gr_gid; - else - ttygid = -1; - - for (cp1 = "pqrs"; *cp1; cp1++) { - line[8] = *cp1; - for (cp2 = "0123456789abcdef"; *cp2; cp2++) { - line[9] = *cp2; - if ((master = open(line, O_RDWR, 0)) == -1) { - if (errno == ENOENT) - return (-1); /* out of ptys */ - } else { - line[5] = 't'; - (void) chown(line, getuid(), ttygid); - (void) chmod(line, S_IRUSR|S_IWUSR|S_IWGRP); - REVOKE(line); - if ((slave = open(line, O_RDWR, 0)) != -1) { - *amaster = master; - *aslave = slave; - if (name) - strcpy(name, line); - if (termp) - (void) tcsetattr(slave, - TCSAFLUSH, termp); - if (winp) - (void) ioctl(slave, TIOCSWINSZ, - (char *)winp); - return (0); - } - (void) close(master); - line[5] = 'p'; - } - } - } - __set_errno (ENOENT); /* out of ptys */ - return (-1); -} - -int -forkpty(amaster, name, termp, winp) - int *amaster; - char *name; - struct termios *termp; - struct winsize *winp; -{ - int master, slave, pid; - - if (openpty(&master, &slave, name, termp, winp) == -1) - return (-1); - switch (pid = fork()) { - case -1: - return (-1); - case 0: - /* - * child - */ - (void) close(master); - login_tty(slave); - return (0); - } - /* - * parent - */ - *amaster = master; - (void) close(slave); - return (pid); -} |