186 lines
3.4 KiB
C
186 lines
3.4 KiB
C
/* @(#)port.h.in 8.13 (Berkeley) 6/12/96 */
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/*
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* Declare the basic types, if they aren't already declared. Named and
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* some system's db.h files protect them with __BIT_TYPES_DEFINED__.
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*/
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#ifndef __BIT_TYPES_DEFINED__
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#define __BIT_TYPES_DEFINED__
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#endif
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/*
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* XXX
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* Handle function prototypes. This steps on name space that vi doesn't
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* control, but all of the other solutions are worse.
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*/
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#undef __P
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#if defined(__STDC__) || defined(__cplusplus)
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#define __P(protos) protos /* ANSI C prototypes */
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#else
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#define __P(protos) () /* K&R C preprocessor */
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#endif
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/*
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* XXX
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* Some versions of System V changed the number of arguments to gettimeofday
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* without changing the name.
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*/
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#ifdef HAVE_BROKEN_GETTIMEOFDAY
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#define gettimeofday(tv, tz) gettimeofday(tv)
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#endif
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/*
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* XXX
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* If we don't have mmap, we fake it with read and write, but we'll
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* still need the header information.
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*/
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#ifndef HAVE_SYS_MMAN_H
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#define MAP_SHARED 1 /* share changes */
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#define MAP_PRIVATE 2 /* changes are private */
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#define PROT_READ 0x1 /* pages can be read */
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#define PROT_WRITE 0x2 /* pages can be written */
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#define PROT_EXEC 0x4 /* pages can be executed */
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#endif
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/*
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* XXX
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* POSIX 1003.1 names for file descriptors.
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*/
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#ifndef STDERR_FILENO
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#define STDIN_FILENO 0 /* ANSI C #defines */
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#define STDOUT_FILENO 1
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#define STDERR_FILENO 2
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#endif
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/*
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* XXX
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* POSIX 1003.1 names for seek settings.
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*/
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#ifndef SEEK_END
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#define SEEK_SET 0 /* POSIX 1003.1 seek values */
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#define SEEK_CUR 1
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#define SEEK_END 2
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#endif
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/*
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* Hack _POSIX_VDISABLE to \377 since Ultrix doesn't honor _POSIX_VDISABLE
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* (treats it as ^@). The symptom is that the ^@ keystroke immediately
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* drops core.
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*/
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#ifdef HAVE_BROKEN_VDISABLE
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#undef _POSIX_VDISABLE
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#define _POSIX_VDISABLE ((unsigned char)'\377')
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#endif
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/*
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* XXX
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* POSIX 1003.1 tty disabling character.
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*/
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#ifndef _POSIX_VDISABLE
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#define _POSIX_VDISABLE 0 /* Some systems used 0. */
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#endif
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/*
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* XXX
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* 4.4BSD extension to only set the software termios bits.
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*/
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#ifndef TCSASOFT /* 4.4BSD extension. */
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#define TCSASOFT 0
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#endif
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/*
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* XXX
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* POSIX 1003.1 maximum path length.
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*/
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#ifndef MAXPATHLEN
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#ifdef PATH_MAX
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#define MAXPATHLEN PATH_MAX
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#else
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#define MAXPATHLEN 1024
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#endif
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#endif
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/*
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* XXX
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* MIN, MAX, historically in <sys/param.h>
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*/
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#ifndef MAX
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#define MAX(_a,_b) ((_a)<(_b)?(_b):(_a))
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#endif
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#ifndef MIN
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#define MIN(_a,_b) ((_a)<(_b)?(_a):(_b))
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#endif
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/*
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* XXX
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* "DB" isn't always portable, and we want the private information.
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*/
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#define DB L__DB
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#undef pgno_t /* IRIX has its own version. */
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#define pgno_t L__db_pgno_t
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/*
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* XXX
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* 4.4BSD extension to provide lock values in the open(2) call.
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*/
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#ifndef O_EXLOCK
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#define O_EXLOCK 0
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#endif
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#ifndef O_SHLOCK
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#define O_SHLOCK 0
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#endif
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/*
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* XXX
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* POSIX 1003.1 bad file format errno.
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*/
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#ifndef EFTYPE
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#define EFTYPE EINVAL
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#endif
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/*
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* XXX
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* POSIX 1003.2 RE length limit.
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*/
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#ifndef _POSIX2_RE_DUP_MAX
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#define _POSIX2_RE_DUP_MAX 255
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#endif
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/*
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* XXX
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* 4.4BSD extension to determine if a program dropped core from the exit
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* status.
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*/
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#ifndef WCOREDUMP
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#define WCOREDUMP(a) 0
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#endif
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/*
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* XXX
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* Endian-ness of the machine.
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*/
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#if !defined(LITTLE_ENDIAN)
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#define LITTLE_ENDIAN 1234
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#endif
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#if !defined(BIG_ENDIAN)
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#define BIG_ENDIAN 4321
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#endif
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#if !defined(BYTE_ORDER)
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#if WORDS_BIGENDIAN == 1
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#define BYTE_ORDER BIG_ENDIAN
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#else
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#endif
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