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--- Libc/Libc-391.2.7/stdlib/FreeBSD/grantpt.c
+++ /dev/null
@@ -1,259 +0,0 @@
-/*
- * Copyright (c) 2002 The FreeBSD Project, Inc.
- * All rights reserved.
- *
- * This software includes code contributed to the FreeBSD Project
- * by Ryan Younce of North Carolina State University.
- *
- * 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. Neither the name of the FreeBSD Project 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 FREEBSD PROJECT 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 FREEBSD PROJECT OR ITS 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.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-__FBSDID("$FreeBSD: src/lib/libc/stdlib/grantpt.c,v 1.2 2003/01/04 08:10:55 tjr Exp $");
-#endif /* not lint */
-
-#include "namespace.h"
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-
-#include <errno.h>
-#include <fcntl.h>
-#include <grp.h>
-#include <paths.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sysexits.h>
-#include <unistd.h>
-#include "un-namespace.h"
-
-#define PTM_MAJOR 6 /* pseudo tty master major */
-#define PTS_MAJOR 5 /* pseudo tty slave major */
-#define PTM_PREFIX "pty" /* pseudo tty master naming convention */
-#define PTS_PREFIX "tty" /* pseudo tty slave naming convention */
-
-/*
- * The following are range values for pseudo TTY devices. Pseudo TTYs have a
- * name of /dev/[pt]ty[p-sP-S][0-9a-v], yielding 256 combinations per major.
- */
-#define PT_MAX 256
-#define PT_DEV1 "pqrsPQRS"
-#define PT_DEV2 "0123456789abcdefghijklmnopqrstuv"
-
-/*
- * grantpt(3) support utility.
- */
-#define _PATH_PTCHOWN "/usr/libexec/pt_chown"
-
-/*
- * ISPTM(x) returns 0 for struct stat x if x is not a pty master.
- * The bounds checking may be unnecessary but it does eliminate doubt.
- */
-#define ISPTM(x) (S_ISCHR((x).st_mode) && \
- major((x).st_rdev) == PTM_MAJOR && \
- minor((x).st_rdev) >= 0 && \
- minor((x).st_rdev) < PT_MAX)
-
-/*
- * grantpt(): grant ownership of a slave pseudo-terminal device to the
- * current user.
- */
-
-int
-grantpt(int fildes)
-{
- int retval, serrno, status;
- pid_t pid, spid;
- gid_t gid;
- char *slave;
- sigset_t oblock, nblock;
- struct group *grp;
-
- retval = -1;
- serrno = errno;
-
- if ((slave = ptsname(fildes)) != NULL) {
- /*
- * Block SIGCHLD.
- */
- (void)sigemptyset(&nblock);
- (void)sigaddset(&nblock, SIGCHLD);
- (void)_sigprocmask(SIG_BLOCK, &nblock, &oblock);
-
- switch (pid = fork()) {
- case -1:
- break;
- case 0: /* child */
- /*
- * pt_chown expects the master pseudo TTY to be its
- * standard input.
- */
- (void)_dup2(fildes, STDIN_FILENO);
- (void)_sigprocmask(SIG_SETMASK, &oblock, NULL);
- execl(_PATH_PTCHOWN, _PATH_PTCHOWN, (char *)NULL);
- _exit(EX_UNAVAILABLE);
- /* NOTREACHED */
- default: /* parent */
- /*
- * Just wait for the process. Error checking is
- * done below.
- */
- while ((spid = _waitpid(pid, &status, 0)) == -1 &&
- (errno == EINTR))
- ;
- if (spid != -1 && WIFEXITED(status) &&
- WEXITSTATUS(status) == EX_OK)
- retval = 0;
- else
- errno = EACCES;
- break;
- }
-
- /*
- * Restore process's signal mask.
- */
- (void)_sigprocmask(SIG_SETMASK, &oblock, NULL);
-
- if (retval) {
- /*
- * pt_chown failed. Try to manually change the
- * permissions for the slave.
- */
- gid = (grp = getgrnam("tty")) ? grp->gr_gid : -1;
- if (chown(slave, getuid(), gid) == -1 ||
- chmod(slave, S_IRUSR | S_IWUSR | S_IWGRP) == -1)
- errno = EACCES;
- else
- retval = 0;
- }
- }
-
- if (!retval)
- errno = serrno;
-
- return (retval);
-}
-
-/*
- * posix_openpt(): open the first available master pseudo-terminal device
- * and return descriptor.
- */
-int
-posix_openpt(int oflag)
-{
- char *mc1, *mc2, master[] = _PATH_DEV PTM_PREFIX "XY";
- const char *pc1, *pc2;
- int fildes, bflag, serrno;
-
- fildes = -1;
- bflag = 0;
- serrno = errno;
-
- /*
- * Check flag validity. POSIX doesn't require it,
- * but we still do so.
- */
- if (oflag & ~(O_RDWR | O_NOCTTY))
- errno = EINVAL;
- else {
- mc1 = master + strlen(_PATH_DEV PTM_PREFIX);
- mc2 = mc1 + 1;
-
- /* Cycle through all possible master PTY devices. */
- for (pc1 = PT_DEV1; !bflag && (*mc1 = *pc1); ++pc1)
- for (pc2 = PT_DEV2; (*mc2 = *pc2) != '\0'; ++pc2) {
- /*
- * Break out if we successfully open a PTY,
- * or if open() fails due to limits.
- */
- if ((fildes = _open(master, oflag)) != -1 ||
- (errno == EMFILE || errno == ENFILE)) {
- ++bflag;
- break;
- }
- }
-
- if (fildes != -1)
- errno = serrno;
- else if (!bflag)
- errno = EAGAIN;
- }
-
- return (fildes);
-}
-
-/*
- * ptsname(): return the pathname of the slave pseudo-terminal device
- * associated with the specified master.
- */
-char *
-ptsname(int fildes)
-{
- static char slave[] = _PATH_DEV PTS_PREFIX "XY";
- char *retval;
- struct stat sbuf;
-
- retval = NULL;
-
- if (_fstat(fildes, &sbuf) == 0) {
- if (!ISPTM(sbuf))
- errno = EINVAL;
- else {
- (void)sprintf(slave, _PATH_DEV PTS_PREFIX "%c%c",
- PT_DEV1[minor(sbuf.st_rdev) / 32],
- PT_DEV2[minor(sbuf.st_rdev) % 32]);
- retval = slave;
- }
- }
-
- return (retval);
-}
-
-/*
- * unlockpt(): unlock a pseudo-terminal device pair.
- */
-int
-unlockpt(int fildes)
-{
- int retval;
- struct stat sbuf;
-
- /*
- * Unlocking a master/slave pseudo-terminal pair has no meaning in a
- * non-streams PTY environment. However, we do ensure fildes is a
- * valid master pseudo-terminal device.
- */
- if ((retval = _fstat(fildes, &sbuf)) == 0 && !ISPTM(sbuf)) {
- errno = EINVAL;
- retval = -1;
- }
-
- return (retval);
-}