[binutils.git] / readline / examples / rlfe / os.h

/* Copyright (c) 1993-2002
 *      Juergen Weigert ([email protected])
 *      Michael Schroeder ([email protected])
 * Copyright (c) 1987 Oliver Laumann
 *
 * This program 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 2, or (at your option)
 * any later version.
 *
 * This program 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 this program (see the file COPYING); if not, write to the
 * Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
 *
 ****************************************************************
 * $Id: os.h,v 1.10 1994/05/31 12:32:22 mlschroe Exp $ FAU
 */

#include <stdio.h>
#include <errno.h>

#include <sys/param.h>

/* In strict ANSI mode, HP-UX machines define __hpux but not hpux */
#if defined(__hpux) && !defined(hpux)
# define hpux
#endif

#if defined(__bsdi__) || defined(__386BSD__) || defined(_CX_UX) || defined(hpux) || defined(_IBMR2) || defined(linux)
# include <signal.h>
#endif /* __bsdi__ || __386BSD__ || _CX_UX || hpux || _IBMR2 || linux */

#ifdef ISC
# ifdef ENAMETOOLONG
#  undef ENAMETOOLONG
# endif
# ifdef ENOTEMPTY
#  undef ENOTEMPTY
# endif
# include <sys/bsdtypes.h>
# include <net/errno.h>
#endif

#ifdef sun
# define getpgrp __getpgrp
# define exit __exit
#endif
#ifdef POSIX
# include <unistd.h>
# if defined(__STDC__)
#  include <stdlib.h>
# endif /* __STDC__ */
#endif /* POSIX */
#ifdef sun
# undef getpgrp
# undef exit
#endif /* sun */

#ifndef linux /* all done in <errno.h> */
extern int errno;
#endif /* linux */
#ifndef HAVE_STRERROR
/* No macros, please */
#undef strerror
#endif

#if !defined(SYSV) && !defined(linux)
# ifdef NEWSOS
#  define strlen ___strlen___
#  include <strings.h>
#  undef strlen
# else /* NEWSOS */
#  include <strings.h>
# endif /* NEWSOS */
#else /* SYSV */
# if defined(SVR4) || defined(NEWSOS)
#  define strlen ___strlen___
#  include <string.h>
#  undef strlen
#  if !defined(NEWSOS) && !defined(__hpux)
    extern size_t strlen(const char *);
#  endif
# else /* SVR4 */
#  include <string.h>
# endif /* SVR4 */
#endif /* SYSV */

#ifdef USEVARARGS
# if defined(__STDC__)
#  include <stdarg.h>
#  define VA_LIST(var) va_list var;
#  define VA_DOTS ...
#  define VA_DECL
#  define VA_START(ap, fmt) va_start(ap, fmt)
#  define VA_ARGS(ap) ap
#  define VA_END(ap) va_end(ap)
# else
#  include <varargs.h>
#  define VA_LIST(var) va_list var;
#  define VA_DOTS va_alist
#  define VA_DECL va_dcl
#  define VA_START(ap, fmt) va_start(ap)
#  define VA_ARGS(ap) ap
#  define VA_END(ap) va_end(ap)
# endif
#else
# define VA_LIST(var)
# define VA_DOTS p1, p2, p3, p4, p5, p6
# define VA_DECL unsigned long VA_DOTS;
# define VA_START(ap, fmt)
# define VA_ARGS(ap) VA_DOTS
# define VA_END(ap)
# undef vsnprintf
# define vsnprintf xsnprintf
#endif

#if !defined(sun) && !defined(B43) && !defined(ISC) && !defined(pyr) && !defined(_CX_UX)
# include <time.h>
#endif
#include <sys/time.h>

#ifdef M_UNIX   /* SCO */
# include <sys/stream.h>
# include <sys/ptem.h>
# define ftruncate(fd, s) chsize(fd, s)
#endif

#ifdef SYSV
# define index strchr
# define rindex strrchr
# define bzero(poi,len) memset(poi,0,len)
# define bcmp memcmp
# define killpg(pgrp,sig) kill( -(pgrp), sig)
#endif

#ifndef HAVE_GETCWD
# define getcwd(b,l) getwd(b)
#endif

#ifndef USEBCOPY
# ifdef USEMEMMOVE
#  define bcopy(s,d,len) memmove(d,s,len)
# else
#  ifdef USEMEMCPY
#   define bcopy(s,d,len) memcpy(d,s,len)
#  else
#   define NEED_OWN_BCOPY
#   define bcopy xbcopy
#  endif
# endif
#endif

#ifdef hpux
# define setreuid(ruid, euid) setresuid(ruid, euid, -1)
# define setregid(rgid, egid) setresgid(rgid, egid, -1)
#endif

#if defined(HAVE_SETEUID) || defined(HAVE_SETREUID)
# define USE_SETEUID
#endif

#if !defined(HAVE__EXIT) && !defined(_exit)
#define _exit(x) exit(x)
#endif

#ifndef HAVE_UTIMES
# define utimes utime
#endif

#ifdef BUILTIN_TELNET
# include <netinet/in.h>
# include <arpa/inet.h>
#endif

#if defined(USE_LOCALE) && (!defined(HAVE_SETLOCALE) || !defined(HAVE_STRFTIME))
# undef USE_LOCALE
#endif

/*****************************************************************
 *    terminal handling
 */

#if defined (POSIX) || defined (__FreeBSD__)
# include <termios.h>
# ifdef hpux
#  include <bsdtty.h>
# endif /* hpux */
# ifdef NCCS
#  define MAXCC NCCS
# else
#  define MAXCC 256
# endif
#else /* POSIX */
# ifdef TERMIO
#  include <termio.h>
#  ifdef NCC
#   define MAXCC NCC
#  else
#   define MAXCC 256
#  endif
#  ifdef CYTERMIO
#   include <cytermio.h>
#  endif
# else /* TERMIO */
#  if defined (HAVE_SGTTY_H)
#    include <sgtty.h>
#  endif
# endif /* TERMIO */
#endif /* POSIX */

#ifndef VDISABLE
# ifdef _POSIX_VDISABLE
#  define VDISABLE _POSIX_VDISABLE
# else
#  define VDISABLE 0377
# endif /* _POSIX_VDISABLE */
#endif /* !VDISABLE */


/* on sgi, regardless of the stream head's read mode (RNORM/RMSGN/RMSGD)
 * TIOCPKT mode causes data loss if our buffer is too small (IOSIZE)
 * to hold the whole packet at first read().
 * (Marc Boucher)
 *
 * matthew green:
 * TIOCPKT is broken on dgux 5.4.1 generic AViiON mc88100
 *
 * Joe Traister: On AIX4, programs like irc won't work if screen
 * uses TIOCPKT (select fails to return on pty read).
 */
#if defined(sgi) || defined(DGUX) || defined(_IBMR2)
# undef TIOCPKT
#endif

/* linux ncurses is broken, we have to use our own tputs */
#if defined(linux) && defined(TERMINFO)
# define tputs xtputs
#endif

/* Alexandre Oliva: SVR4 style ptys don't work with osf */
#ifdef __osf__
# undef HAVE_SVR4_PTYS
#endif

/*****************************************************************
 *   utmp handling
 */

#ifdef GETUTENT
  typedef char *slot_t;
#else
  typedef int slot_t;
#endif

#if defined(UTMPOK) || defined(BUGGYGETLOGIN)
# if defined(SVR4) && !defined(DGUX) && !defined(__hpux) && !defined(linux)
#  include <utmpx.h>
#  define UTMPFILE	UTMPX_FILE
#  define utmp		utmpx
#  define getutent	getutxent
#  define getutid	getutxid
#  define getutline	getutxline
#  define pututline	pututxline
#  define setutent	setutxent
#  define endutent	endutxent
#  define ut_time	ut_xtime
# else /* SVR4 */
#  include <utmp.h>
# endif /* SVR4 */
# ifdef apollo
   /* 
    * We don't have GETUTENT, so we dig into utmp ourselves.
    * But we save the permanent filedescriptor and
    * open utmp just when we need to. 
    * This code supports an unsorted utmp. jw.
    */
#  define UTNOKEEP
# endif /* apollo */

# ifndef UTMPFILE
#  ifdef UTMP_FILE
#   define UTMPFILE	UTMP_FILE
#  else
#   ifdef _PATH_UTMP
#    define UTMPFILE	_PATH_UTMP
#   else
#    define UTMPFILE	"/etc/utmp"
#   endif /* _PATH_UTMP */
#  endif
# endif

#endif /* UTMPOK || BUGGYGETLOGIN */

#if !defined(UTMPOK) && defined(USRLIMIT)
# undef USRLIMIT
#endif

#ifdef LOGOUTOK
# ifndef LOGINDEFAULT
#  define LOGINDEFAULT 0
# endif
#else
# ifdef LOGINDEFAULT
#  undef LOGINDEFAULT
# endif
# define LOGINDEFAULT 1
#endif


/*****************************************************************
 *    file stuff
 */

#ifndef F_OK
#define F_OK 0
#endif
#ifndef X_OK
#define X_OK 1
#endif
#ifndef W_OK
#define W_OK 2
#endif
#ifndef R_OK
#define R_OK 4
#endif

#ifndef S_IFIFO
#define S_IFIFO  0010000
#endif
#ifndef S_IREAD
#define S_IREAD  0000400
#endif
#ifndef S_IWRITE
#define S_IWRITE 0000200
#endif
#ifndef S_IEXEC
#define S_IEXEC  0000100
#endif

#if defined(S_IFIFO) && defined(S_IFMT) && !defined(S_ISFIFO)
#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)
#endif
#if defined(S_IFSOCK) && defined(S_IFMT) && !defined(S_ISSOCK)
#define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK)
#endif
#if defined(S_IFCHR) && defined(S_IFMT) && !defined(S_ISCHR)
#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)
#endif
#if defined(S_IFDIR) && defined(S_IFMT) && !defined(S_ISDIR)
#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
#endif
#if defined(S_IFLNK) && defined(S_IFMT) && !defined(S_ISLNK)
#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
#endif

/*
 * SunOS 4.1.3: `man 2V open' has only one line that mentions O_NOBLOCK:
 *
 *     O_NONBLOCK     Same as O_NDELAY above.
 *
 * on the very same SunOS 4.1.3, I traced the open system call and found
 * that an open("/dev/ttyy08", O_RDWR|O_NONBLOCK|O_NOCTTY) was blocked,
 * whereas open("/dev/ttyy08", O_RDWR|O_NDELAY  |O_NOCTTY) went through.
 *
 * For this simple reason I now favour O_NDELAY. jw. 4.5.95
 */
#if defined(sun) && !defined(SVR4)
# undef O_NONBLOCK
#endif

#if !defined(O_NONBLOCK) && defined(O_NDELAY)
# define O_NONBLOCK O_NDELAY
#endif

#if !defined(FNBLOCK) && defined(FNONBLOCK)
# define FNBLOCK FNONBLOCK
#endif
#if !defined(FNBLOCK) && defined(FNDELAY)
# define FNBLOCK FNDELAY
#endif
#if !defined(FNBLOCK) && defined(O_NONBLOCK)
# define FNBLOCK O_NONBLOCK
#endif

#ifndef POSIX
#undef mkfifo
#define mkfifo(n,m) mknod(n,S_IFIFO|(m),0)
#endif

#if !defined(HAVE_LSTAT) && !defined(lstat)
# define lstat stat
#endif

/*****************************************************************
 *    signal handling
 */

#ifdef SIGVOID
# define SIGRETURN
# define sigret_t void
#else
# define SIGRETURN return 0;
# define sigret_t int
#endif

/* Geeeee, reverse it? */
#if defined(SVR4) || (defined(SYSV) && defined(ISC)) || defined(_AIX) || defined(linux) || defined(ultrix) || defined(__386BSD__) || defined(__bsdi__) || defined(POSIX) || defined(NeXT)
# define SIGHASARG
#endif

#ifdef SIGHASARG
# define SIGPROTOARG   (int)
# define SIGDEFARG     (sigsig) int sigsig;
# define SIGARG        0
#else
# define SIGPROTOARG   (void)
# define SIGDEFARG     ()
# define SIGARG
#endif

#ifndef SIGCHLD
#define SIGCHLD SIGCLD
#endif

#if defined(POSIX) || defined(hpux)
# define signal xsignal
#else
# ifdef USESIGSET
#  define signal sigset
# endif /* USESIGSET */
#endif

/* used in screen.c and attacher.c */
#ifndef NSIG		/* kbeal needs these w/o SYSV */
# define NSIG 32
#endif /* !NSIG */


/*****************************************************************
 *    Wait stuff
 */

#if (!defined(sysV68) && !defined(M_XENIX)) || defined(NeXT) || defined(M_UNIX)
# include <sys/wait.h>
#endif

#ifndef WTERMSIG
# ifndef BSDWAIT /* if wait is NOT a union: */
#  define WTERMSIG(status) (status & 0177)
# else
#  define WTERMSIG(status) status.w_T.w_Termsig 
# endif
#endif

#ifndef WSTOPSIG
# ifndef BSDWAIT /* if wait is NOT a union: */
#  define WSTOPSIG(status) ((status >> 8) & 0377)
# else
#  define WSTOPSIG(status) status.w_S.w_Stopsig 
# endif
#endif

/* NET-2 uses WCOREDUMP */
#if defined(WCOREDUMP) && !defined(WIFCORESIG)
# define WIFCORESIG(status) WCOREDUMP(status)
#endif

#ifndef WIFCORESIG
# ifndef BSDWAIT /* if wait is NOT a union: */
#  define WIFCORESIG(status) (status & 0200)
# else
#  define WIFCORESIG(status) status.w_T.w_Coredump
# endif
#endif

#ifndef WEXITSTATUS
# ifndef BSDWAIT /* if wait is NOT a union: */
#  define WEXITSTATUS(status) ((status >> 8) & 0377)
# else
#  define WEXITSTATUS(status) status.w_T.w_Retcode
# endif
#endif


/*****************************************************************
 *    select stuff
 */

#if defined(M_XENIX) || defined(M_UNIX) || defined(_SEQUENT_) || defined (__INTERIX)
#include <sys/select.h>		/* for timeval + FD... */
#endif

/*
 * SunOS 3.5 - Tom Schmidt - Micron Semiconductor, Inc - 27-Jul-93
 * [email protected]
 */
#ifndef FD_SET
# ifndef SUNOS3
typedef struct fd_set { int fds_bits[1]; } fd_set;
# endif
# define FD_ZERO(fd) ((fd)->fds_bits[0] = 0)
# define FD_SET(b, fd) ((fd)->fds_bits[0] |= 1 << (b))
# define FD_ISSET(b, fd) ((fd)->fds_bits[0] & 1 << (b))
# define FD_SETSIZE 32
#endif


/*****************************************************************
 *    user defineable stuff
 */

#ifndef TERMCAP_BUFSIZE
# define TERMCAP_BUFSIZE 2048
#endif

#ifndef MAXPATHLEN
# define MAXPATHLEN 1024
#endif

/* 
 * you may try to vary this value. Use low values if your (VMS) system
 * tends to choke when pasting. Use high values if you want to test
 * how many characters your pty's can buffer.
 */
#define IOSIZE		4096
Commit	Line	Data
b585a9fa EZ	1	/* Copyright (c) 1993-2002
	2	* Juergen Weigert ([email protected])
	3	* Michael Schroeder ([email protected])
	4	* Copyright (c) 1987 Oliver Laumann
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2, or (at your option)
	9	* any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program (see the file COPYING); if not, write to the
	18	* Free Software Foundation, Inc.,
	19	* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
	20	*
	21	****************************************************************
775e241e	22	* $Id: os.h,v 1.10 1994/05/31 12:32:22 mlschroe Exp $ FAU
b585a9fa EZ	23	*/
	24
	25	#include <stdio.h>
	26	#include <errno.h>
	27
	28	#include <sys/param.h>
	29
	30	/* In strict ANSI mode, HP-UX machines define __hpux but not hpux */
	31	#if defined(__hpux) && !defined(hpux)
	32	# define hpux
	33	#endif
	34
	35	#if defined(__bsdi__) \|\| defined(__386BSD__) \|\| defined(_CX_UX) \|\| defined(hpux) \|\| defined(_IBMR2) \|\| defined(linux)
	36	# include <signal.h>
	37	#endif /* __bsdi__ \|\| __386BSD__ \|\| _CX_UX \|\| hpux \|\| _IBMR2 \|\| linux */
	38
	39	#ifdef ISC
	40	# ifdef ENAMETOOLONG
	41	# undef ENAMETOOLONG
	42	# endif
	43	# ifdef ENOTEMPTY
	44	# undef ENOTEMPTY
	45	# endif
	46	# include <sys/bsdtypes.h>
	47	# include <net/errno.h>
	48	#endif
	49
	50	#ifdef sun
	51	# define getpgrp __getpgrp
	52	# define exit __exit
	53	#endif
	54	#ifdef POSIX
	55	# include <unistd.h>
	56	# if defined(__STDC__)
	57	# include <stdlib.h>
	58	# endif /* __STDC__ */
	59	#endif /* POSIX */
	60	#ifdef sun
	61	# undef getpgrp
	62	# undef exit
	63	#endif /* sun */
	64
	65	#ifndef linux /* all done in <errno.h> */
	66	extern int errno;
	67	#endif /* linux */
	68	#ifndef HAVE_STRERROR
	69	/* No macros, please */
	70	#undef strerror
	71	#endif
	72
	73	#if !defined(SYSV) && !defined(linux)
	74	# ifdef NEWSOS
	75	# define strlen ___strlen___
	76	# include <strings.h>
	77	# undef strlen
	78	# else /* NEWSOS */
	79	# include <strings.h>
	80	# endif /* NEWSOS */
	81	#else /* SYSV */
	82	# if defined(SVR4) \|\| defined(NEWSOS)
	83	# define strlen ___strlen___
	84	# include <string.h>
	85	# undef strlen
	86	# if !defined(NEWSOS) && !defined(__hpux)
87	extern size_t strlen(const char *);
88	# endif
89	# else /* SVR4 */
90	# include <string.h>
91	# endif /* SVR4 */
92	#endif /* SYSV */
93
94	#ifdef USEVARARGS
95	# if defined(__STDC__)
96	# include <stdarg.h>
97	# define VA_LIST(var) va_list var;
98	# define VA_DOTS ...
99	# define VA_DECL
100	# define VA_START(ap, fmt) va_start(ap, fmt)
101	# define VA_ARGS(ap) ap
102	# define VA_END(ap) va_end(ap)
103	# else
104	# include <varargs.h>
105	# define VA_LIST(var) va_list var;
106	# define VA_DOTS va_alist
107	# define VA_DECL va_dcl
108	# define VA_START(ap, fmt) va_start(ap)
109	# define VA_ARGS(ap) ap
110	# define VA_END(ap) va_end(ap)
111	# endif
112	#else
113	# define VA_LIST(var)
114	# define VA_DOTS p1, p2, p3, p4, p5, p6
115	# define VA_DECL unsigned long VA_DOTS;
116	# define VA_START(ap, fmt)
117	# define VA_ARGS(ap) VA_DOTS
118	# define VA_END(ap)
119	# undef vsnprintf
120	# define vsnprintf xsnprintf
121	#endif
122
123	#if !defined(sun) && !defined(B43) && !defined(ISC) && !defined(pyr) && !defined(_CX_UX)
124	# include <time.h>
125	#endif
126	#include <sys/time.h>
127
128	#ifdef M_UNIX /* SCO */
129	# include <sys/stream.h>
130	# include <sys/ptem.h>
131	# define ftruncate(fd, s) chsize(fd, s)
132	#endif
133
134	#ifdef SYSV
135	# define index strchr
136	# define rindex strrchr
137	# define bzero(poi,len) memset(poi,0,len)
138	# define bcmp memcmp
139	# define killpg(pgrp,sig) kill( -(pgrp), sig)
140	#endif
141
142	#ifndef HAVE_GETCWD
143	# define getcwd(b,l) getwd(b)
144	#endif
145
146	#ifndef USEBCOPY
147	# ifdef USEMEMMOVE
148	# define bcopy(s,d,len) memmove(d,s,len)
149	# else
150	# ifdef USEMEMCPY
151	# define bcopy(s,d,len) memcpy(d,s,len)
152	# else
153	# define NEED_OWN_BCOPY
154	# define bcopy xbcopy
155	# endif
156	# endif
157	#endif
158
159	#ifdef hpux
160	# define setreuid(ruid, euid) setresuid(ruid, euid, -1)
161	# define setregid(rgid, egid) setresgid(rgid, egid, -1)
162	#endif
163
164	#if defined(HAVE_SETEUID) \|\| defined(HAVE_SETREUID)
165	# define USE_SETEUID
166	#endif
167
168	#if !defined(HAVE__EXIT) && !defined(_exit)
169	#define _exit(x) exit(x)
170	#endif
171
172	#ifndef HAVE_UTIMES
173	# define utimes utime
174	#endif
175
176	#ifdef BUILTIN_TELNET
177	# include <netinet/in.h>
178	# include <arpa/inet.h>
179	#endif
180
181	#if defined(USE_LOCALE) && (!defined(HAVE_SETLOCALE) \|\| !defined(HAVE_STRFTIME))
182	# undef USE_LOCALE
183	#endif
184
185	/*****************************************************************
186	* terminal handling
187	*/
188
cc88a640	189	#if defined (POSIX) \|\| defined (__FreeBSD__)
b585a9fa EZ	190	# include <termios.h>
	191	# ifdef hpux
	192	# include <bsdtty.h>
	193	# endif /* hpux */
	194	# ifdef NCCS
	195	# define MAXCC NCCS
	196	# else
	197	# define MAXCC 256
	198	# endif
	199	#else /* POSIX */
	200	# ifdef TERMIO
	201	# include <termio.h>
	202	# ifdef NCC
	203	# define MAXCC NCC
	204	# else
	205	# define MAXCC 256
	206	# endif
	207	# ifdef CYTERMIO
	208	# include <cytermio.h>
	209	# endif
	210	# else /* TERMIO */
775e241e TT	211	# if defined (HAVE_SGTTY_H)
	212	# include <sgtty.h>
	213	# endif
b585a9fa EZ	214	# endif /* TERMIO */
	215	#endif /* POSIX */
	216
	217	#ifndef VDISABLE
	218	# ifdef _POSIX_VDISABLE
	219	# define VDISABLE _POSIX_VDISABLE
	220	# else
	221	# define VDISABLE 0377
	222	# endif /* _POSIX_VDISABLE */
	223	#endif /* !VDISABLE */
	224
	225
	226	/* on sgi, regardless of the stream head's read mode (RNORM/RMSGN/RMSGD)
	227	* TIOCPKT mode causes data loss if our buffer is too small (IOSIZE)
	228	* to hold the whole packet at first read().
	229	* (Marc Boucher)
	230	*
	231	* matthew green:
	232	* TIOCPKT is broken on dgux 5.4.1 generic AViiON mc88100
	233	*
	234	* Joe Traister: On AIX4, programs like irc won't work if screen
	235	* uses TIOCPKT (select fails to return on pty read).
	236	*/
	237	#if defined(sgi) \|\| defined(DGUX) \|\| defined(_IBMR2)
	238	# undef TIOCPKT
	239	#endif
	240
	241	/* linux ncurses is broken, we have to use our own tputs */
	242	#if defined(linux) && defined(TERMINFO)
	243	# define tputs xtputs
	244	#endif
	245
	246	/* Alexandre Oliva: SVR4 style ptys don't work with osf */
	247	#ifdef __osf__
	248	# undef HAVE_SVR4_PTYS
	249	#endif
	250
	251	/*****************************************************************
	252	* utmp handling
	253	*/
	254
	255	#ifdef GETUTENT
	256	typedef char *slot_t;
	257	#else
	258	typedef int slot_t;
	259	#endif
	260
	261	#if defined(UTMPOK) \|\| defined(BUGGYGETLOGIN)
	262	# if defined(SVR4) && !defined(DGUX) && !defined(__hpux) && !defined(linux)
	263	# include <utmpx.h>
	264	# define UTMPFILE UTMPX_FILE
	265	# define utmp utmpx
	266	# define getutent getutxent
	267	# define getutid getutxid
	268	# define getutline getutxline
	269	# define pututline pututxline
	270	# define setutent setutxent
	271	# define endutent endutxent
	272	# define ut_time ut_xtime
	273	# else /* SVR4 */
	274	# include <utmp.h>
	275	# endif /* SVR4 */
	276	# ifdef apollo
	277	/*
278	* We don't have GETUTENT, so we dig into utmp ourselves.
279	* But we save the permanent filedescriptor and
280	* open utmp just when we need to.
281	* This code supports an unsorted utmp. jw.
282	*/
283	# define UTNOKEEP
284	# endif /* apollo */
285
286	# ifndef UTMPFILE
287	# ifdef UTMP_FILE
288	# define UTMPFILE UTMP_FILE
289	# else
290	# ifdef _PATH_UTMP
291	# define UTMPFILE _PATH_UTMP
292	# else
293	# define UTMPFILE "/etc/utmp"
294	# endif /* _PATH_UTMP */
295	# endif
296	# endif
297
298	#endif /* UTMPOK \|\| BUGGYGETLOGIN */
299
300	#if !defined(UTMPOK) && defined(USRLIMIT)
301	# undef USRLIMIT
302	#endif
303
304	#ifdef LOGOUTOK
305	# ifndef LOGINDEFAULT
306	# define LOGINDEFAULT 0
307	# endif
308	#else
309	# ifdef LOGINDEFAULT
310	# undef LOGINDEFAULT
311	# endif
312	# define LOGINDEFAULT 1
313	#endif
314
315
316	/*****************************************************************
317	* file stuff
318	*/
319
320	#ifndef F_OK
321	#define F_OK 0
322	#endif
323	#ifndef X_OK
324	#define X_OK 1
325	#endif
326	#ifndef W_OK
327	#define W_OK 2
328	#endif
329	#ifndef R_OK
330	#define R_OK 4
331	#endif
332
333	#ifndef S_IFIFO
334	#define S_IFIFO 0010000
335	#endif
336	#ifndef S_IREAD
337	#define S_IREAD 0000400
338	#endif
339	#ifndef S_IWRITE
340	#define S_IWRITE 0000200
341	#endif
342	#ifndef S_IEXEC
343	#define S_IEXEC 0000100
344	#endif
345
346	#if defined(S_IFIFO) && defined(S_IFMT) && !defined(S_ISFIFO)
347	#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)
348	#endif
349	#if defined(S_IFSOCK) && defined(S_IFMT) && !defined(S_ISSOCK)
350	#define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK)
351	#endif
352	#if defined(S_IFCHR) && defined(S_IFMT) && !defined(S_ISCHR)
353	#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)
354	#endif
355	#if defined(S_IFDIR) && defined(S_IFMT) && !defined(S_ISDIR)
356	#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
357	#endif
358	#if defined(S_IFLNK) && defined(S_IFMT) && !defined(S_ISLNK)
359	#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
360	#endif
361
362	/*
363	* SunOS 4.1.3: `man 2V open' has only one line that mentions O_NOBLOCK:
364	*
365	* O_NONBLOCK Same as O_NDELAY above.
366	*
367	* on the very same SunOS 4.1.3, I traced the open system call and found
368	* that an open("/dev/ttyy08", O_RDWR\|O_NONBLOCK\|O_NOCTTY) was blocked,
369	* whereas open("/dev/ttyy08", O_RDWR\|O_NDELAY \|O_NOCTTY) went through.
370	*
371	* For this simple reason I now favour O_NDELAY. jw. 4.5.95
372	*/
373	#if defined(sun) && !defined(SVR4)
374	# undef O_NONBLOCK
375	#endif
376
377	#if !defined(O_NONBLOCK) && defined(O_NDELAY)
378	# define O_NONBLOCK O_NDELAY
379	#endif
380
381	#if !defined(FNBLOCK) && defined(FNONBLOCK)
382	# define FNBLOCK FNONBLOCK
383	#endif
384	#if !defined(FNBLOCK) && defined(FNDELAY)
385	# define FNBLOCK FNDELAY
386	#endif
387	#if !defined(FNBLOCK) && defined(O_NONBLOCK)
388	# define FNBLOCK O_NONBLOCK
389	#endif
390
391	#ifndef POSIX
392	#undef mkfifo
393	#define mkfifo(n,m) mknod(n,S_IFIFO\|(m),0)
394	#endif
395
396	#if !defined(HAVE_LSTAT) && !defined(lstat)
397	# define lstat stat
398	#endif
399
400	/*****************************************************************
401	* signal handling
402	*/
403
404	#ifdef SIGVOID
405	# define SIGRETURN
406	# define sigret_t void
407	#else
408	# define SIGRETURN return 0;
409	# define sigret_t int
410	#endif
411
412	/* Geeeee, reverse it? */
413	#if defined(SVR4) \|\| (defined(SYSV) && defined(ISC)) \|\| defined(_AIX) \|\| defined(linux) \|\| defined(ultrix) \|\| defined(__386BSD__) \|\| defined(__bsdi__) \|\| defined(POSIX) \|\| defined(NeXT)
414	# define SIGHASARG
415	#endif
416
417	#ifdef SIGHASARG
418	# define SIGPROTOARG (int)
419	# define SIGDEFARG (sigsig) int sigsig;
420	# define SIGARG 0
421	#else
422	# define SIGPROTOARG (void)
423	# define SIGDEFARG ()
424	# define SIGARG
425	#endif
426
427	#ifndef SIGCHLD
428	#define SIGCHLD SIGCLD
429	#endif
430
431	#if defined(POSIX) \|\| defined(hpux)
432	# define signal xsignal
433	#else
434	# ifdef USESIGSET
435	# define signal sigset
436	# endif /* USESIGSET */
437	#endif
438
439	/* used in screen.c and attacher.c */
440	#ifndef NSIG /* kbeal needs these w/o SYSV */
441	# define NSIG 32
442	#endif /* !NSIG */
443
444
445	/*****************************************************************
446	* Wait stuff
447	*/
448
449	#if (!defined(sysV68) && !defined(M_XENIX)) \|\| defined(NeXT) \|\| defined(M_UNIX)
450	# include <sys/wait.h>
451	#endif
452
453	#ifndef WTERMSIG
454	# ifndef BSDWAIT /* if wait is NOT a union: */
455	# define WTERMSIG(status) (status & 0177)
456	# else
457	# define WTERMSIG(status) status.w_T.w_Termsig
458	# endif
459	#endif
460
461	#ifndef WSTOPSIG
462	# ifndef BSDWAIT /* if wait is NOT a union: */
463	# define WSTOPSIG(status) ((status >> 8) & 0377)
464	# else
465	# define WSTOPSIG(status) status.w_S.w_Stopsig
466	# endif
467	#endif
468
469	/* NET-2 uses WCOREDUMP */
470	#if defined(WCOREDUMP) && !defined(WIFCORESIG)
471	# define WIFCORESIG(status) WCOREDUMP(status)
472	#endif
473
474	#ifndef WIFCORESIG
475	# ifndef BSDWAIT /* if wait is NOT a union: */
476	# define WIFCORESIG(status) (status & 0200)
477	# else
478	# define WIFCORESIG(status) status.w_T.w_Coredump
479	# endif
480	#endif
481
482	#ifndef WEXITSTATUS
483	# ifndef BSDWAIT /* if wait is NOT a union: */
484	# define WEXITSTATUS(status) ((status >> 8) & 0377)
485	# else
486	# define WEXITSTATUS(status) status.w_T.w_Retcode
487	# endif
488	#endif
489
490
491	/*****************************************************************
492	* select stuff
493	*/
494
775e241e	495	#if defined(M_XENIX) \|\| defined(M_UNIX) \|\| defined(_SEQUENT_) \|\| defined (__INTERIX)
b585a9fa EZ	496	#include <sys/select.h> /* for timeval + FD... */
	497	#endif
	498
	499	/*
	500	* SunOS 3.5 - Tom Schmidt - Micron Semiconductor, Inc - 27-Jul-93
	501	* [email protected]
	502	*/
	503	#ifndef FD_SET
	504	# ifndef SUNOS3
	505	typedef struct fd_set { int fds_bits[1]; } fd_set;
	506	# endif
	507	# define FD_ZERO(fd) ((fd)->fds_bits[0] = 0)
	508	# define FD_SET(b, fd) ((fd)->fds_bits[0] \|= 1 << (b))
	509	# define FD_ISSET(b, fd) ((fd)->fds_bits[0] & 1 << (b))
	510	# define FD_SETSIZE 32
	511	#endif
	512
	513
	514	/*****************************************************************
	515	* user defineable stuff
	516	*/
	517
	518	#ifndef TERMCAP_BUFSIZE
	519	# define TERMCAP_BUFSIZE 2048
	520	#endif
	521
	522	#ifndef MAXPATHLEN
	523	# define MAXPATHLEN 1024
	524	#endif
	525
	526	/*
	527	* you may try to vary this value. Use low values if your (VMS) system
	528	* tends to choke when pasting. Use high values if you want to test
	529	* how many characters your pty's can buffer.
	530	*/
	531	#define IOSIZE 4096