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/* s/ file for Unixware.
Copyright (C) 1999-2012 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include "usg5-4-common.h"
/* #define HAVE_GETWD (appears to be buggy on SVR4.2) */
#undef HAVE_GETWD
#undef HAVE_SYSV_SIGPAUSE
/* This is the same definition as in usg5-4-common.h, but with sigblock/sigunblock
rather than sighold/sigrelse, which appear to be BSD4.1 specific.
It may also be appropriate for SVR4.x
(x<2) but I'm not sure. fnf@cygnus.com */
/* This sets the name of the slave side of the PTY. On SysVr4,
grantpt(3) forks a subprocess, so keep sigchld_handler() from
intercepting that death. If any child but grantpt's should die
within, it should be caught after sigrelse(2). */
#define PTY_TTY_NAME_SPRINTF \
{ \
char *ptsname (int), *ptyname; \
\
sigblock(sigmask(SIGCLD)); \
if (grantpt(fd) == -1) \
fatal("could not grant slave pty"); \
sigunblock(sigmask(SIGCLD)); \
if (unlockpt(fd) == -1) \
fatal("could not unlock slave pty"); \
if (!(ptyname = ptsname(fd))) \
fatal ("could not enable slave pty"); \
strncpy(pty_name, ptyname, sizeof(pty_name)); \
pty_name[sizeof(pty_name) - 1] = 0; \
}
#define PENDING_OUTPUT_COUNT(FILE) ((FILE)->__ptr - (FILE)->__base)
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