dist/port.h.in

   1 /* $Id: port.h.in,v 8.13 1996/06/12 14:41:07 bostic Exp $ (Berkeley) $Date: 1996/06/12 14:41:07 $ */
   2
   3 /*
   4  * Declare the basic types, if they aren't already declared.  Named and
   5  * some system's db.h files protect them with __BIT_TYPES_DEFINED__.
   6  */
   7 #ifndef __BIT_TYPES_DEFINED__
   8 #define __BIT_TYPES_DEFINED__
   9 @u_int8_decl@
  10 @int16_decl@
  11 @u_int16_decl@
  12 @int32_decl@
  13 @u_int32_decl@
  14 #endif
  15
  16 @u_char_decl@
  17 @u_short_decl@
  18 @u_int_decl@
  19 @u_long_decl@
  20
  21 /*
  22  * XXX
  23  * Handle function prototypes.  This steps on name space that vi doesn't
  24  * control, but all of the other solutions are worse.
  25  */
  26 #undef  __P
  27 #if defined(__STDC__) || defined(__cplusplus)
  28 #define __P(protos)     protos          /* ANSI C prototypes */
  29 #else
  30 #define __P(protos)     ()              /* K&R C preprocessor */
  31 #endif
  32
  33 /*
  34  * XXX
  35  * Some versions of System V changed the number of arguments to gettimeofday
  36  * without changing the name.
  37  */
  38 #ifdef HAVE_BROKEN_GETTIMEOFDAY
  39 #define gettimeofday(tv, tz)    gettimeofday(tv)
  40 #endif
  41
  42 /*
  43  * XXX
  44  * If we don't have mmap, we fake it with read and write, but we'll
  45  * still need the header information.
  46  */
  47 #ifndef HAVE_SYS_MMAN_H
  48 #define MAP_SHARED      1               /* share changes */
  49 #define MAP_PRIVATE     2               /* changes are private */
  50 #define PROT_READ       0x1             /* pages can be read */
  51 #define PROT_WRITE      0x2             /* pages can be written */
  52 #define PROT_EXEC       0x4             /* pages can be executed */
  53 #endif
  54
  55 /*
  56  * XXX
  57  * POSIX 1003.1 names for file descriptors.
  58  */
  59 #ifndef STDERR_FILENO
  60 #define STDIN_FILENO    0               /* ANSI C #defines */
  61 #define STDOUT_FILENO   1
  62 #define STDERR_FILENO   2
  63 #endif
  64
  65 /*
  66  * XXX
  67  * POSIX 1003.1 names for seek settings.
  68  */
  69 #ifndef SEEK_END
  70 #define SEEK_SET        0               /* POSIX 1003.1 seek values */
  71 #define SEEK_CUR        1
  72 #define SEEK_END        2
  73 #endif
  74
  75 /*
  76  * Hack _POSIX_VDISABLE to \377 since Ultrix doesn't honor _POSIX_VDISABLE
  77  * (treats it as ^@).  The symptom is that the ^@ keystroke immediately
  78  * drops core.
  79  */
  80 #ifdef HAVE_BROKEN_VDISABLE
  81 #undef  _POSIX_VDISABLE
  82 #define _POSIX_VDISABLE ((unsigned char)'\377')
  83 #endif
  84
  85 /*
  86  * XXX
  87  * POSIX 1003.1 tty disabling character.
  88  */
  89 #ifndef _POSIX_VDISABLE
  90 #define _POSIX_VDISABLE 0               /* Some systems used 0. */
  91 #endif
  92
  93 /*
  94  * XXX
  95  * 4.4BSD extension to only set the software termios bits.
  96  */
  97 #ifndef TCSASOFT                        /* 4.4BSD extension. */
  98 #define TCSASOFT        0
  99 #endif
 100
 101 /*
 102  * XXX
 103  * POSIX 1003.1 maximum path length.
 104  */
 105 #ifndef MAXPATHLEN
 106 #ifdef PATH_MAX
 107 #define MAXPATHLEN      PATH_MAX
 108 #else
 109 #define MAXPATHLEN      1024
 110 #endif
 111 #endif
 112
 113 /*
 114  * XXX
 115  * MIN, MAX, historically in <sys/param.h>
 116  */
 117 #ifndef MAX
 118 #define MAX(_a,_b)      ((_a)<(_b)?(_b):(_a))
 119 #endif
 120 #ifndef MIN
 121 #define MIN(_a,_b)      ((_a)<(_b)?(_a):(_b))
 122 #endif
 123
 124 /*
 125  * XXX
 126  * "DB" isn't always portable, and we want the private information.
 127  */
 128 #define DB      L__DB
 129 #undef  pgno_t                  /* IRIX has its own version. */
 130 #define pgno_t  L__db_pgno_t
 131
 132 /*
 133  * XXX
 134  * 4.4BSD extension to provide lock values in the open(2) call.
 135  */
 136 #ifndef O_EXLOCK
 137 #define O_EXLOCK        0
 138 #endif
 139
 140 #ifndef O_SHLOCK
 141 #define O_SHLOCK        0
 142 #endif
 143
 144 /*
 145  * XXX
 146  * POSIX 1003.1 bad file format errno.
 147  */
 148 #ifndef EFTYPE
 149 #define EFTYPE          EINVAL
 150 #endif
 151
 152 /*
 153  * XXX
 154  * POSIX 1003.2 RE length limit.
 155  */
 156 #ifndef _POSIX2_RE_DUP_MAX
 157 #define _POSIX2_RE_DUP_MAX      255
 158 #endif
 159
 160 /*
 161  * XXX
 162  * 4.4BSD extension to determine if a program dropped core from the exit
 163  * status.
 164  */
 165 #ifndef WCOREDUMP
 166 #define WCOREDUMP(a)    0
 167 #endif
 168
 169 /*
 170  * XXX
 171  * Endian-ness of the machine.
 172  */
 173 #if !defined(LITTLE_ENDIAN)
 174 #define LITTLE_ENDIAN   1234
 175 #endif
 176 #if !defined(BIG_ENDIAN)
 177 #define BIG_ENDIAN      4321
 178 #endif
 179 #if !defined(BYTE_ORDER)
 180 #if WORDS_BIGENDIAN == 1
 181 #define BYTE_ORDER      BIG_ENDIAN
 182 #else
 183 #define BYTE_ORDER      LITTLE_ENDIAN
 184 #endif
 185 #endif