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45139d5f77
1998-04-24 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * streams/Makefile (headers): Add sys/stropts.h. * streams/sys/stropts.h: New file. 1998-04-25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/ttyname.c, sysdeps/unix/sysv/linux/ttyname_r.c: New files, like sysdeps/posix/ttyname*.c, but look in /dev/pts first. 1998-04-25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/ptsname.c: Fix off-by-one bug in second argument of _itoa_word. 1998-04-24 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/syscalls.list (s_getcwd, s_getdents, s_pread64, s_pwrite64, s_reboot, s_sigpending, s_sigprocmask): Set caller to getcwd, getdents, pread64, pwrite64, reboot, sigpending, sigprocmask, resp., instead of EXTRA. * sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove s_pread64 and s_pwrite64.
134 lines
3.0 KiB
C
134 lines
3.0 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 <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <termios.h>
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#include <string.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "pty-internal.h"
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#include <stdio-common/_itoa.h>
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#include <sys/sysmacros.h>
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/* Given the file descriptor of a master pty, return the pathname
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of the associated slave. */
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static char namebuf[PTYNAMELEN];
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extern const char __ptyname1[], __ptyname2[]; /* Defined in getpt.c. */
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char *
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ptsname (fd)
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int fd;
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{
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return __ptsname_r (fd, namebuf, PTYNAMELEN) != 0 ? NULL : namebuf;
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}
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int
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__ptsname_r (fd, buf, buflen)
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int fd;
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char *buf;
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size_t buflen;
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{
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struct stat st;
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int save = errno;
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int ptyno;
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char nbuf[PTYNAMELEN], idbuf[6];
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char *cp;
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#ifdef TIOCGPTN
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static int tiocgptn_works = 1;
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#endif
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if (!buf)
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{
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__set_errno (EINVAL);
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return EINVAL;
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}
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if (!__isatty (fd))
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{
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__set_errno (ENOTTY);
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return ENOTTY;
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}
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#ifdef TIOCGPTN
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if (tiocgptn_works)
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{
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if (ioctl (fd, TIOCGPTN, &ptyno) == 0)
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goto gotit;
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else
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{
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if(errno != EINVAL)
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return errno;
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else
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tiocgptn_works = 0;
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}
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}
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#endif
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if (__fxstat (_STAT_VER, fd, &st) < 0)
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return errno;
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ptyno = minor (st.st_rdev);
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if (major (st.st_rdev) == 4)
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ptyno -= 128;
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#ifdef TIOCGPTN
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gotit:
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#endif
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/* Two different possible naming schemes for pty slaves:
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the SVr4 way. */
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idbuf[5] = '\0';
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__stpcpy (__stpcpy (nbuf, "/dev/pts/"),
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_itoa_word (ptyno, &idbuf[5], 10, 0));
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if (__xstat (_STAT_VER, nbuf, &st) < 0)
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{
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if (errno != ENOENT)
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return errno;
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/* ...and the BSD way. */
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nbuf[5] = 't';
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nbuf[7] = 'y';
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nbuf[8] = __ptyname1[ptyno / 16];
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nbuf[9] = __ptyname2[ptyno % 16];
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nbuf[10] = '\0';
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if (__xstat (_STAT_VER, nbuf, &st) < 0)
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return errno;
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}
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if (buflen < strlen (nbuf) + 1)
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{
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__set_errno (ERANGE);
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return ERANGE;
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}
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cp = __stpncpy (buf, nbuf, buflen);
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cp[0] = '\0';
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__set_errno (save);
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return 0;
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}
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weak_alias (__ptsname_r, ptsname_r)
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