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1998-09-17 19:34 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/sysv4/bits/utsname.h: Fix typo. Patch by John Tobey <jtobey@banta-im.com>. 1998-09-17 Mark Kettenis <kettenis@phys.uva.nl> * login/pty-internal.h: Removed. Moved constants related to the `grantpt' helper program protocol to ... * login/pty-private.h: ... here. New file. * sysdeps/unix/sysv/linux/ptsname.c (ptsname): Reimplementation to make the function work with kernels >= 2.1.115. * sysdeps/unix/sysv/linux/getpt.c (getpt): Reimplement to call BSD version if using the cloning device fails. * sysdeps/unix/sysv/linux/grantpt.c: New file. * sysdeps/unix/sysv/linux/unlockpt.c: General cleanup. * sysdeps/unix/bsd/getpt.c (__getpt): Largely rewritten to allow use by Linux specific code. * sysdeps/unix/bsd/unlockpt.c: General cleanup. * sysdeps/unix/grantpt.c: Largely rewritten. (pts_name): New function. (grantpt): Use pts_name, check group and permission mode in addition to owner. Try to set the owner, group and permission mode first without invoking the helper program. * login/programs/pt_chown.c: Largely rewritten. Add argp and internationalization support. Use symbolic constants instead of hardwired numbers for permission mode. * sysdeps/unix/bsd/ptsname.c: New file. 1998-09-17 22:04 Tim Waugh <tim@cyberelk.demon.co.uk> * posix/wordexp-test.c: Undo last change. * posix/wordexp.c: Undo last change.
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
/* Copyright (C) 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <unistd.h>
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/* Prefix for master pseudo terminal nodes. */
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#define _PATH_PTY "/dev/pty"
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/* Letters indicating a series of pseudo terminals. */
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#ifndef PTYNAME1
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#define PTYNAME1 "pqrsPQRS"
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#endif
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const char *__libc_ptyname1 = PTYNAME1;
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/* Letters indicating the position within a series. */
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#ifndef PTYNAME2
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#define PTYNAME2 "0123456789abcdefghijklmnopqrstuv";
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#endif
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const char *__libc_ptyname2 = PTYNAME2;
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/* Open a master pseudo terminal and return its file descriptor. */
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int
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__getpt (void)
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{
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char buf[sizeof (_PATH_PTY) + 2];
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const char *p, *q;
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char *s;
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s = __stpcpy (buf, _PATH_PTY);
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s[0] = '?';
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s[1] = '?';
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s[2] = 0;
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for (p = __libc_ptyname1; *p; p++)
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{
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s[0] = *p;
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for (q = __libc_ptyname2; *q; q++)
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{
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int fd;
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s[1] = *q;
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fd = __open (buf, O_RDWR);
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if (fd != -1)
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{
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if (__isatty (fd))
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return fd;
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__close (fd);
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continue;
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}
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if (errno != EIO)
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return -1;
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}
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}
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__set_errno (ENFILE);
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return -1;
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}
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weak_alias (__getpt, getpt)
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