include/wine/port.h

   1 /*
   2  * Wine porting definitions
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library 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 GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #ifndef __WINE_WINE_PORT_H
  22 #define __WINE_WINE_PORT_H
  23
  24 #ifndef __WINE_CONFIG_H
  25 # error You must include config.h to use this header
  26 #endif
  27
  28 #define _GNU_SOURCE  /* for pread/pwrite */
  29 #include <fcntl.h>
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32 #ifdef HAVE_DIRECT_H
  33 # include <direct.h>
  34 #endif
  35 #ifdef HAVE_IO_H
  36 # include <io.h>
  37 #endif
  38 #include <string.h>
  39 #ifdef HAVE_UNISTD_H
  40 # include <unistd.h>
  41 #endif
  42
  43
  44 /****************************************************************
  45  * Type definitions
  46  */
  47
  48 #ifndef HAVE_MODE_T
  49 typedef int mode_t;
  50 #endif
  51 #ifndef HAVE_OFF_T
  52 typedef long off_t;
  53 #endif
  54 #ifndef HAVE_PID_T
  55 typedef int pid_t;
  56 #endif
  57 #ifndef HAVE_SIZE_T
  58 typedef unsigned int size_t;
  59 #endif
  60 #ifndef HAVE_SSIZE_T
  61 typedef int ssize_t;
  62 #endif
  63
  64 #if !defined(HAVE_GETNETBYADDR) && !defined(HAVE_GETNETBYNAME)
  65 struct netent {
  66   char         *n_name;
  67   char        **n_aliases;
  68   int           n_addrtype;
  69   unsigned long n_net;
  70 };
  71 #endif /* !defined(HAVE_GETNETBYADDR) && !defined(HAVE_GETNETBYNAME) */
  72
  73 #if !defined(HAVE_GETPROTOBYNAME) && !defined(HAVE_GETPROTOBYNUMBER)
  74 struct  protoent {
  75   char  *p_name;
  76   char **p_aliases;
  77   int    p_proto;
  78 };
  79 #endif /* !defined(HAVE_GETPROTOBYNAME) && !defined(HAVE_GETPROTOBYNUMBER) */
  80
  81 #ifndef HAVE_STATFS
  82 # ifdef __BEOS__
  83 #  define STATFS_HAS_BFREE
  84 struct statfs {
  85   long   f_bsize;  /* block_size */
  86   long   f_blocks; /* total_blocks */
  87   long   f_bfree;  /* free_blocks */
  88 };
  89 # else /* defined(__BEOS__) */
  90 struct statfs;
  91 # endif /* defined(__BEOS__) */
  92 #endif /* !defined(HAVE_STATFS) */
  93
  94
  95 /****************************************************************
  96  * Macro definitions
  97  */
  98
  99 #ifdef HAVE_DLFCN_H
 100 #include <dlfcn.h>
 101 #else
 102 #define RTLD_LAZY    0x001
 103 #define RTLD_NOW     0x002
 104 #define RTLD_GLOBAL  0x100
 105 #endif
 106
 107 #if !defined(HAVE_FTRUNCATE) && defined(HAVE_CHSIZE)
 108 #define ftruncate chsize
 109 #endif
 110
 111 #if !defined(HAVE_POPEN) && defined(HAVE__POPEN)
 112 #define popen _popen
 113 #endif
 114
 115 #if !defined(HAVE_PCLOSE) && defined(HAVE__PCLOSE)
 116 #define pclose _pclose
 117 #endif
 118
 119 #if !defined(HAVE_SNPRINTF) && defined(HAVE__SNPRINTF)
 120 #define snprintf _snprintf
 121 #endif
 122
 123 #ifndef S_ISLNK
 124 # define S_ISLNK(mod) (0)
 125 #endif /* S_ISLNK */
 126
 127 /* So we open files in 64 bit access mode on Linux */
 128 #ifndef O_LARGEFILE
 129 # define O_LARGEFILE 0
 130 #endif
 131
 132 /* Macros to define assembler functions somewhat portably */
 133
 134 #ifdef NEED_UNDERSCORE_PREFIX
 135 # define __ASM_NAME(name) "_" name
 136 #else
 137 # define __ASM_NAME(name) name
 138 #endif
 139
 140 #ifdef NEED_TYPE_IN_DEF
 141 # define __ASM_FUNC(name) ".def " __ASM_NAME(name) "; .scl 2; .type 32; .endef"
 142 #else
 143 # define __ASM_FUNC(name) ".type " __ASM_NAME(name) ",@function"
 144 #endif
 145
 146 #ifdef __GNUC__
 147 # define __ASM_GLOBAL_FUNC(name,code) \
 148       __asm__( ".align 4\n\t" \
 149                ".globl " __ASM_NAME(#name) "\n\t" \
 150                __ASM_FUNC(#name) "\n" \
 151                __ASM_NAME(#name) ":\n\t" \
 152                code );
 153 #else  /* __GNUC__ */
 154 # define __ASM_GLOBAL_FUNC(name,code) \
 155       void __asm_dummy_##name(void) { \
 156           asm( ".align 4\n\t" \
 157                ".globl " __ASM_NAME(#name) "\n\t" \
 158                __ASM_FUNC(#name) "\n" \
 159                __ASM_NAME(#name) ":\n\t" \
 160                code ); \
 161       }
 162 #endif  /* __GNUC__ */
 163
 164
 165 /* Macros to access unaligned or wrong-endian WORDs and DWORDs. */
 166
 167 #define PUT_WORD(ptr, w)  (*(WORD *)(ptr) = (w))
 168 #define GET_WORD(ptr)     (*(WORD *)(ptr))
 169 #define PUT_DWORD(ptr, d) (*(DWORD *)(ptr) = (d))
 170 #define GET_DWORD(ptr)    (*(DWORD *)(ptr))
 171
 172 #define PUT_LE_WORD(ptr, w) \
 173         do { ((BYTE *)(ptr))[0] = LOBYTE(w); \
 174              ((BYTE *)(ptr))[1] = HIBYTE(w); } while (0)
 175 #define GET_LE_WORD(ptr) \
 176         MAKEWORD( ((BYTE *)(ptr))[0], \
 177                   ((BYTE *)(ptr))[1] )
 178 #define PUT_LE_DWORD(ptr, d) \
 179         do { PUT_LE_WORD(&((WORD *)(ptr))[0], LOWORD(d)); \
 180              PUT_LE_WORD(&((WORD *)(ptr))[1], HIWORD(d)); } while (0)
 181 #define GET_LE_DWORD(ptr) \
 182         ((DWORD)MAKELONG( GET_LE_WORD(&((WORD *)(ptr))[0]), \
 183                           GET_LE_WORD(&((WORD *)(ptr))[1]) ))
 184
 185 #define PUT_BE_WORD(ptr, w) \
 186         do { ((BYTE *)(ptr))[1] = LOBYTE(w); \
 187              ((BYTE *)(ptr))[0] = HIBYTE(w); } while (0)
 188 #define GET_BE_WORD(ptr) \
 189         MAKEWORD( ((BYTE *)(ptr))[1], \
 190                   ((BYTE *)(ptr))[0] )
 191 #define PUT_BE_DWORD(ptr, d) \
 192         do { PUT_BE_WORD(&((WORD *)(ptr))[1], LOWORD(d)); \
 193              PUT_BE_WORD(&((WORD *)(ptr))[0], HIWORD(d)); } while (0)
 194 #define GET_BE_DWORD(ptr) \
 195         ((DWORD)MAKELONG( GET_BE_WORD(&((WORD *)(ptr))[1]), \
 196                           GET_BE_WORD(&((WORD *)(ptr))[0]) ))
 197
 198 #if defined(ALLOW_UNALIGNED_ACCESS)
 199 #define PUT_UA_WORD(ptr, w)  PUT_WORD(ptr, w)
 200 #define GET_UA_WORD(ptr)     GET_WORD(ptr)
 201 #define PUT_UA_DWORD(ptr, d) PUT_DWORD(ptr, d)
 202 #define GET_UA_DWORD(ptr)    GET_DWORD(ptr)
 203 #elif defined(WORDS_BIGENDIAN)
 204 #define PUT_UA_WORD(ptr, w)  PUT_BE_WORD(ptr, w)
 205 #define GET_UA_WORD(ptr)     GET_BE_WORD(ptr)
 206 #define PUT_UA_DWORD(ptr, d) PUT_BE_DWORD(ptr, d)
 207 #define GET_UA_DWORD(ptr)    GET_BE_DWORD(ptr)
 208 #else
 209 #define PUT_UA_WORD(ptr, w)  PUT_LE_WORD(ptr, w)
 210 #define GET_UA_WORD(ptr)     GET_LE_WORD(ptr)
 211 #define PUT_UA_DWORD(ptr, d) PUT_LE_DWORD(ptr, d)
 212 #define GET_UA_DWORD(ptr)    GET_LE_DWORD(ptr)
 213 #endif
 214
 215
 216 /****************************************************************
 217  * Function definitions (only when using libwine)
 218  */
 219
 220 #ifndef NO_LIBWINE
 221
 222 #if !defined(HAVE_CLONE) && defined(linux)
 223 int clone(int (*fn)(void *arg), void *stack, int flags, void *arg);
 224 #endif /* !defined(HAVE_CLONE) && defined(linux) */
 225
 226 #ifndef HAVE_GETNETBYADDR
 227 struct netent *getnetbyaddr(unsigned long net, int type);
 228 #endif /* defined(HAVE_GETNETBYNAME) */
 229
 230 #ifndef HAVE_GETNETBYNAME
 231 struct netent *getnetbyname(const char *name);
 232 #endif /* defined(HAVE_GETNETBYNAME) */
 233
 234 #ifndef HAVE_GETPAGESIZE
 235 size_t getpagesize(void);
 236 #endif  /* HAVE_GETPAGESIZE */
 237
 238 #ifndef HAVE_GETPROTOBYNAME
 239 struct protoent *getprotobyname(const char *name);
 240 #endif /* !defined(HAVE_GETPROTOBYNAME) */
 241
 242 #ifndef HAVE_GETPROTOBYNUMBER
 243 struct protoent *getprotobynumber(int proto);
 244 #endif /* !defined(HAVE_GETPROTOBYNUMBER) */
 245
 246 #ifndef HAVE_GETSERVBYPORT
 247 struct servent *getservbyport(int port, const char *proto);
 248 #endif /* !defined(HAVE_GETSERVBYPORT) */
 249
 250 #ifndef HAVE_GETSOCKOPT
 251 int getsockopt(int socket, int level, int option_name, void *option_value, size_t *option_len);
 252 #endif /* !defined(HAVE_GETSOCKOPT) */
 253
 254 #ifndef HAVE_INET_NETWORK
 255 unsigned long inet_network(const char *cp);
 256 #endif /* !defined(HAVE_INET_NETWORK) */
 257
 258 #ifndef HAVE_LSTAT
 259 int lstat(const char *file_name, struct stat *buf);
 260 #endif /* HAVE_LSTAT */
 261
 262 #ifndef HAVE_MEMMOVE
 263 void *memmove(void *dest, const void *src, unsigned int len);
 264 #endif /* !defined(HAVE_MEMMOVE) */
 265
 266 #ifndef HAVE_PREAD
 267 ssize_t pread( int fd, void *buf, size_t count, off_t offset );
 268 #endif /* HAVE_PREAD */
 269
 270 #ifndef HAVE_PWRITE
 271 ssize_t pwrite( int fd, const void *buf, size_t count, off_t offset );
 272 #endif /* HAVE_PWRITE */
 273
 274 #ifndef HAVE_STATFS
 275 int statfs(const char *name, struct statfs *info);
 276 #endif /* !defined(HAVE_STATFS) */
 277
 278 #ifndef HAVE_STRNCASECMP
 279 # ifndef HAVE__STRNICMP
 280 int strncasecmp(const char *str1, const char *str2, size_t n);
 281 # else
 282 # define strncasecmp _strnicmp
 283 # endif
 284 #endif /* !defined(HAVE_STRNCASECMP) */
 285
 286 #ifndef HAVE_STRERROR
 287 const char *strerror(int err);
 288 #endif /* !defined(HAVE_STRERROR) */
 289
 290 #ifndef HAVE_STRCASECMP
 291 # ifndef HAVE__STRICMP
 292 int strcasecmp(const char *str1, const char *str2);
 293 # else
 294 # define strcasecmp _stricmp
 295 # endif
 296 #endif /* !defined(HAVE_STRCASECMP) */
 297
 298 #ifndef HAVE_USLEEP
 299 int usleep (unsigned int useconds);
 300 #endif /* !defined(HAVE_USLEEP) */
 301
 302 /* Interlocked functions */
 303
 304 #if defined(__i386__) && defined(__GNUC__)
 305
 306 inline static long interlocked_cmpxchg( long *dest, long xchg, long compare )
 307 {
 308     long ret;
 309     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 310                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 311     return ret;
 312 }
 313
 314 inline static void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
 315 {
 316     void *ret;
 317     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 318                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 319     return ret;
 320 }
 321
 322 inline static long interlocked_xchg( long *dest, long val )
 323 {
 324     long ret;
 325     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 326                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 327     return ret;
 328 }
 329
 330 inline static void *interlocked_xchg_ptr( void **dest, void *val )
 331 {
 332     void *ret;
 333     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 334                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 335     return ret;
 336 }
 337
 338 inline static long interlocked_xchg_add( long *dest, long incr )
 339 {
 340     long ret;
 341     __asm__ __volatile__( "lock; xaddl %0,(%1)"
 342                           : "=r" (ret) : "r" (dest), "0" (incr) : "memory" );
 343     return ret;
 344 }
 345
 346 #else  /* __i386___ && __GNUC__ */
 347
 348 extern long interlocked_cmpxchg( long *dest, long xchg, long compare );
 349 extern void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
 350 extern long interlocked_xchg( long *dest, long val );
 351 extern void *interlocked_xchg_ptr( void **dest, void *val );
 352 extern long interlocked_xchg_add( long *dest, long incr );
 353
 354 #endif  /* __i386___ && __GNUC__ */
 355
 356 #else /* NO_LIBWINE */
 357
 358 #define __WINE_NOT_PORTABLE(func) func##_is_not_portable func##_is_not_portable
 359
 360 #define clone             __WINE_NOT_PORTABLE(clone)
 361 #define getnetbyaddr      __WINE_NOT_PORTABLE(getnetbyaddr)
 362 #define getnetbyname      __WINE_NOT_PORTABLE(getnetbyname)
 363 #define getpagesize       __WINE_NOT_PORTABLE(getpagesize)
 364 #define getprotobyname    __WINE_NOT_PORTABLE(getprotobyname)
 365 #define getprotobynumber  __WINE_NOT_PORTABLE(getprotobynumber)
 366 #define getservbyport     __WINE_NOT_PORTABLE(getservbyport)
 367 #define getsockopt        __WINE_NOT_PORTABLE(getsockopt)
 368 #define inet_network      __WINE_NOT_PORTABLE(inet_network)
 369 #define lstat             __WINE_NOT_PORTABLE(lstat)
 370 #define memmove           __WINE_NOT_PORTABLE(memmove)
 371 #define pread             __WINE_NOT_PORTABLE(pread)
 372 #define pwrite            __WINE_NOT_PORTABLE(pwrite)
 373 #define statfs            __WINE_NOT_PORTABLE(statfs)
 374 #define strcasecmp        __WINE_NOT_PORTABLE(strcasecmp)
 375 #define strerror          __WINE_NOT_PORTABLE(strerror)
 376 #define strncasecmp       __WINE_NOT_PORTABLE(strncasecmp)
 377 #define usleep            __WINE_NOT_PORTABLE(usleep)
 378
 379 #endif /* NO_LIBWINE */
 380
 381 #endif /* !defined(__WINE_WINE_PORT_H) */