1 /* $Id: compat.h,v 1.1 2013/11/22 16:00:45 christos Exp $ (Berkeley) $Date: 2013/11/22 16:00:45 $ */ 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 10 11 12 13 14 #endif 15 16 17 18 19 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 186 187 #ifndef HAVE_MEMCPY 188 #define memcpy memmove 189 #endif 190 191 #ifdef NEED_FPRINTF_PROTO 192 extern int fprintf( FILE *, const char *, ... ); 193 #endif 194 195 #ifdef HAVE_PTHREAD 196 #define VI_DB_THREAD DB_THREAD 197 #else 198 #define VI_DB_THREAD 0 199 #endif 200