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/* system-dependent definitions for CVS.
Copyright (C) 1989-1992 Free Software Foundation, Inc.
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; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* $CVSid: @(#)system.h 1.18 94/09/25 $ */
#ifdef __GNUC__
#ifndef alloca
#define alloca __builtin_alloca
#endif
#else
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#else
#ifdef _AIX
/* AIX alloca decl has to be the first thing in the file, bletch! */
#pragma alloca
#else /* not _AIX */
char *alloca ();
#endif /* not _AIX */
#endif /* not HAVE_ALLOCA_H */
#endif /* not __GNUS__ */
#include <sys/types.h>
#include <sys/stat.h>
#ifdef STAT_MACROS_BROKEN
#undef S_ISBLK
#undef S_ISCHR
#undef S_ISDIR
#undef S_ISREG
#undef S_ISFIFO
#undef S_ISLNK
#undef S_ISSOCK
#undef S_ISMPB
#undef S_ISMPC
#undef S_ISNWK
#endif
#if !defined(S_ISBLK) && defined(S_IFBLK)
#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
#endif
#if !defined(S_ISCHR) && defined(S_IFCHR)
#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
#endif
#if !defined(S_ISDIR) && defined(S_IFDIR)
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif
#if !defined(S_ISREG) && defined(S_IFREG)
#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#endif
#if !defined(S_ISFIFO) && defined(S_IFIFO)
#define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
#endif
#if !defined(S_ISLNK) && defined(S_IFLNK)
#define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
#endif
#if !defined(S_ISSOCK) && defined(S_IFSOCK)
#define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
#endif
#if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
#define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
#define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
#endif
#if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
#define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
#endif
#if !defined(HAVE_MKFIFO)
#define mkfifo(path, mode) (mknod ((path), (mode) | S_IFIFO, 0))
#endif
#ifndef S_IRUSR
#define S_IRUSR 0400
#define S_IWUSR 0200
#define S_IXUSR 0100
/* Read, write, and execute by owner. */
#define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
#define S_IRGRP (S_IRUSR >> 3) /* Read by group. */
#define S_IWGRP (S_IWUSR >> 3) /* Write by group. */
#define S_IXGRP (S_IXUSR >> 3) /* Execute by group. */
/* Read, write, and execute by group. */
#define S_IRWXG (S_IRWXU >> 3)
#define S_IROTH (S_IRGRP >> 3) /* Read by others. */
#define S_IWOTH (S_IWGRP >> 3) /* Write by others. */
#define S_IXOTH (S_IXGRP >> 3) /* Execute by others. */
/* Read, write, and execute by others. */
#define S_IRWXO (S_IRWXG >> 3)
#endif
#if defined(POSIX) || defined(HAVE_UNISTD_H)
#include <unistd.h>
#include <limits.h>
#else
off_t lseek ();
#endif
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#ifdef HAVE_IO_H
#include <io.h>
#endif
#ifdef HAVE_DIRECT_H
#include <direct.h>
#endif
#ifdef timezone
#undef timezone /* needed for sgi */
#endif
#ifdef HAVE_SYS_TIMEB_H
#include <sys/timeb.h>
#else
struct timeb {
time_t time; /* Seconds since the epoch */
unsigned short millitm; /* Field not used */
short timezone;
short dstflag; /* Field not used */
};
#endif
#if !defined(HAVE_FTIME) && !defined(HAVE_TIMEZONE)
#if !defined(timezone)
extern long timezone;
#endif
#endif
/*
** MAXPATHLEN and PATH_MAX
**
** On most systems MAXPATHLEN is defined in sys/param.h to be 1024. Of
** those that this is not true, again most define PATH_MAX in limits.h
** or sys/limits.h which usually gets included by limits.h. On the few
** remaining systems that neither statement is true, _POSIX_PATH_MAX
** is defined.
**
** So:
** 1. If PATH_MAX is defined just use it.
** 2. If MAXPATHLEN is defined but not PATH_MAX, then define
** PATH_MAX in terms of MAXPATHLEN.
** 3. If neither is defined, include limits.h and check for
** PATH_MAX again.
** 3.1 If we now have PATHSIZE, define PATH_MAX in terms of that.
** and ignore the rest. Since _POSIX_PATH_MAX (checked for
** next) is the *most* restrictive (smallest) value, if we
** trust _POSIX_PATH_MAX, several of our buffers are too small.
** 4. If PATH_MAX is still not defined but _POSIX_PATH_MAX is,
** then define PATH_MAX in terms of _POSIX_PATH_MAX.
** 5. And if even _POSIX_PATH_MAX doesn't exist just put in
** a reasonable value.
** *. All in all, this is an excellent argument for using pathconf()
** when at all possible. Or better yet, dynamically allocate
** our buffers and use getcwd() not getwd().
**
** This works on:
** Sun Sparc 10 SunOS 4.1.3 & Solaris 1.2
** HP 9000/700 HP/UX 8.07 & HP/UX 9.01
** Tektronix XD88/10 UTekV 3.2e
** IBM RS6000 AIX 3.2
** Dec Alpha OSF 1 ????
** Intel 386 BSDI BSD/386
** Intel 386 SCO OpenServer Release 5
** Apollo Domain 10.4
** NEC SVR4
*/
/* On MOST systems this will get you MAXPATHLEN.
Windows NT doesn't have this file, tho. */
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifndef PATH_MAX
# ifdef MAXPATHLEN
# define PATH_MAX MAXPATHLEN
# else
# include <limits.h>
# ifndef PATH_MAX
# ifdef PATHSIZE
# define PATH_MAX PATHSIZE
# else /* no PATHSIZE */
# ifdef _POSIX_PATH_MAX
# define PATH_MAX _POSIX_PATH_MAX
# else
# define PATH_MAX 1024
# endif /* no _POSIX_PATH_MAX */
# endif /* no PATHSIZE */
# endif /* no PATH_MAX */
# endif /* MAXPATHLEN */
#endif /* PATH_MAX */
/* The NeXT (without _POSIX_SOURCE, which we don't want) has a utime.h
which doesn't define anything. It would be cleaner to have configure
check for struct utimbuf, but for now I'm checking NeXT here (so I don't
have to debug the configure check across all the machines). */
#if defined (HAVE_UTIME_H) && !defined (NeXT)
#include <utime.h>
#else
#ifndef ALTOS
struct utimbuf
{
long actime;
long modtime;
};
#endif
int utime ();
#endif
#if STDC_HEADERS || HAVE_STRING_H
#include <string.h>
/* An ANSI string.h and pre-ANSI memory.h might conflict. */
#if !STDC_HEADERS && HAVE_MEMORY_H
#include <memory.h>
#endif /* not STDC_HEADERS and HAVE_MEMORY_H */
#ifndef index
#define index strchr
#endif /* index */
#ifndef rindex
#define rindex strrchr
#endif /* rindex */
#ifndef bcmp
#define bcmp(s1, s2, n) memcmp ((s1), (s2), (n))
#endif /* bcmp */
#ifndef bzero
#define bzero(s, n) memset ((s), 0, (n))
#endif /* bzero */
#else /* not STDC_HEADERS and not HAVE_STRING_H */
#include <strings.h>
/* memory.h and strings.h conflict on some systems. */
#endif /* not STDC_HEADERS and not HAVE_STRING_H */
#include <errno.h>
#ifdef STDC_HEADERS
#include <stdlib.h>
#else
char *getenv ();
char *malloc ();
char *realloc ();
char *calloc ();
extern int errno;
#endif
#if defined(USG) || defined(POSIX)
char *getcwd ();
#else
char *getwd ();
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#else
#include <sys/file.h>
#endif
#ifndef SEEK_SET
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
#endif
#ifndef F_OK
#define F_OK 0
#define X_OK 1
#define W_OK 2
#define R_OK 4
#endif
#if HAVE_DIRENT_H
# include <dirent.h>
# define NAMLEN(dirent) strlen((dirent)->d_name)
#else
# define dirent direct
# define NAMLEN(dirent) (dirent)->d_namlen
# if HAVE_SYS_NDIR_H
# include <sys/ndir.h>
# endif
# if HAVE_SYS_DIR_H
# include <sys/dir.h>
# endif
# if HAVE_NDIR_H
# include <ndir.h>
# endif
#endif
/* Convert B 512-byte blocks to kilobytes if K is nonzero,
otherwise return it unchanged. */
#define convert_blocks(b, k) ((k) ? ((b) + 1) / 2 : (b))
#ifndef S_ISLNK
#define lstat stat
#endif
/*
* Some UNIX distributions don't include these in their stat.h Defined here
* because "config.h" is always included last.
*/
#ifndef S_IWRITE
#define S_IWRITE 0000200 /* write permission, owner */
#endif
#ifndef S_IWGRP
#define S_IWGRP 0000020 /* write permission, grougroup */
#endif
#ifndef S_IWOTH
#define S_IWOTH 0000002 /* write permission, other */
#endif
/* Under MS-DOS and its derivatives (like Windows NT), mkdir takes only one
argument; permission is handled very differently on those systems than in
in Unix. So we leave such systems a hook on which they can hang their
own definitions. */
#ifndef CVS_MKDIR
#define CVS_MKDIR mkdir
#endif
/* Some file systems are case-insensitive. If FOLD_FN_CHAR is #defined, it maps
the character C onto its "canonical" form. In a case-insensitive system,
it would map all alphanumeric characters to lower case. Under Windows NT,
/ and \ are both path component separators, so FOLD_FN_CHAR would map them both
to /. */
#ifndef FOLD_FN_CHAR
#define FOLD_FN_CHAR(c) (c)
#define fnfold(filename) (filename)
#define fncmp strcmp
#endif
/* Different file systems have different path component separators.
For the VMS port we might need to abstract further back than this. */
#ifndef ISDIRSEP
#define ISDIRSEP(c) ((c) == '/')
#endif
/* On some systems, lines in text files should be terminated with CRLF,
not just LF, and the read and write routines do this translation
for you. LINES_CRLF_TERMINATED is #defined on such systems.
- OPEN_BINARY is the flag to pass to the open function for
untranslated I/O.
- FOPEN_BINARY_READ is the string to pass to fopen to get
untranslated reading.
- FOPEN_BINARY_WRITE is the string to pass to fopen to get
untranslated writing. */
#if LINES_CRLF_TERMINATED
#define OPEN_BINARY (O_BINARY)
#define FOPEN_BINARY_READ ("rb")
#define FOPEN_BINARY_WRITE ("wb")
#else
#define OPEN_BINARY (0)
#define FOPEN_BINARY_READ ("r")
#define FOPEN_BINARY_WRITE ("w")
#endif
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.