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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 #ifdef __WINE_BASETSD_H
  29 # error You must include port.h before all other headers
  30 #endif
  31
  32 #ifndef _GNU_SOURCE
  33 # define _GNU_SOURCE  /* for pread/pwrite, isfinite */
  34 #endif
  35 #include <fcntl.h>
  36 #include <math.h>
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39 #include <string.h>
  40 #include <stdlib.h>
  41 #ifdef HAVE_UNISTD_H
  42 # include <unistd.h>
  43 #endif
  44
  45
  46 /****************************************************************
  47  * Hard-coded values for the Windows platform
  48  */
  49
  50 #if defined(_WIN32) && !defined(__CYGWIN__)
  51
  52 #include <direct.h>
  53 #include <io.h>
  54 #include <process.h>
  55
  56 #define mkdir(path,mode) mkdir(path)
  57
  58 static inline void *dlopen(const char *name, int flags) { return NULL; }
  59 static inline void *dlsym(void *handle, const char *name) { return NULL; }
  60 static inline int dlclose(void *handle) { return 0; }
  61 static inline const char *dlerror(void) { return "No dlopen support on Windows"; }
  62
  63 #ifdef _MSC_VER
  64
  65 #define ftruncate chsize
  66 #define popen _popen
  67 #define pclose _pclose
  68 /* The UCRT headers in the Windows SDK #error out if we #define snprintf.
  69  * The C headers that came with previous Visual Studio versions do not have
  70  * snprintf. Check for VS 2015, which appears to be the first version to
  71  * use the UCRT headers by default. */
  72 #if _MSC_VER < 1900
  73 # define snprintf _snprintf
  74 #endif
  75 #define strtoll _strtoi64
  76 #define strtoull _strtoui64
  77 #define strncasecmp _strnicmp
  78 #define strcasecmp _stricmp
  79
  80 typedef int mode_t;
  81 typedef long off_t;
  82 typedef int pid_t;
  83 typedef int ssize_t;
  84
  85 #endif /* _MSC_VER */
  86
  87 #else  /* _WIN32 */
  88
  89 #ifndef __int64
  90 #  if defined(__x86_64__) || defined(__aarch64__) || defined(_WIN64)
  91 #    define __int64 long
  92 #  else
  93 #    define __int64 long long
  94 #  endif
  95 #endif
  96
  97 /* Process creation flags */
  98 #ifndef _P_WAIT
  99 # define _P_WAIT    0
 100 # define _P_NOWAIT  1
 101 # define _P_OVERLAY 2
 102 # define _P_NOWAITO 3
 103 # define _P_DETACH  4
 104 #endif
 105 #ifndef HAVE__SPAWNVP
 106 extern int _spawnvp(int mode, const char *cmdname, const char * const argv[]);
 107 #endif
 108
 109 #endif  /* _WIN32 */
 110
 111 /****************************************************************
 112  * Macro definitions
 113  */
 114
 115 #ifdef HAVE_DLFCN_H
 116 #include <dlfcn.h>
 117 #else
 118 #define RTLD_LAZY    0x001
 119 #define RTLD_NOW     0x002
 120 #define RTLD_GLOBAL  0x100
 121 #endif
 122
 123 #ifndef S_ISLNK
 124 # define S_ISLNK(mod) (0)
 125 #endif
 126
 127 #ifndef S_ISSOCK
 128 # define S_ISSOCK(mod) (0)
 129 #endif
 130
 131 #ifndef S_ISDIR
 132 # define S_ISDIR(mod) (((mod) & _S_IFMT) == _S_IFDIR)
 133 #endif
 134
 135 #ifndef S_ISCHR
 136 # define S_ISCHR(mod) (((mod) & _S_IFMT) == _S_IFCHR)
 137 #endif
 138
 139 #ifndef S_ISFIFO
 140 # define S_ISFIFO(mod) (((mod) & _S_IFMT) == _S_IFIFO)
 141 #endif
 142
 143 #ifndef S_ISREG
 144 # define S_ISREG(mod) (((mod) & _S_IFMT) == _S_IFREG)
 145 #endif
 146
 147 /* So we open files in 64 bit access mode on Linux */
 148 #ifndef O_LARGEFILE
 149 # define O_LARGEFILE 0
 150 #endif
 151
 152 #ifndef O_NONBLOCK
 153 # define O_NONBLOCK 0
 154 #endif
 155
 156 #ifndef O_BINARY
 157 # define O_BINARY 0
 158 #endif
 159
 160
 161 /****************************************************************
 162  * Constants
 163  */
 164
 165 #ifndef M_PI
 166 #define M_PI 3.14159265358979323846
 167 #endif
 168
 169 #ifndef M_PI_2
 170 #define M_PI_2 1.570796326794896619
 171 #endif
 172
 173
 174 /****************************************************************
 175  * Function definitions (only when using libwine_port)
 176  */
 177
 178 #ifndef NO_LIBWINE_PORT
 179
 180 #ifndef HAVE_GETOPT_LONG_ONLY
 181 extern char *optarg;
 182 extern int optind;
 183 extern int opterr;
 184 extern int optopt;
 185 struct option;
 186
 187 #ifndef HAVE_STRUCT_OPTION_NAME
 188 struct option
 189 {
 190     const char *name;
 191     int has_arg;
 192     int *flag;
 193     int val;
 194 };
 195 #endif
 196
 197 extern int getopt_long (int ___argc, char *const *___argv,
 198                         const char *__shortopts,
 199                         const struct option *__longopts, int *__longind);
 200 extern int getopt_long_only (int ___argc, char *const *___argv,
 201                              const char *__shortopts,
 202                              const struct option *__longopts, int *__longind);
 203 #endif  /* HAVE_GETOPT_LONG_ONLY */
 204
 205 #ifndef HAVE_LSTAT
 206 int lstat(const char *file_name, struct stat *buf);
 207 #endif /* HAVE_LSTAT */
 208
 209 #ifndef HAVE_POLL
 210 struct pollfd
 211 {
 212     int fd;
 213     short events;
 214     short revents;
 215 };
 216 #define POLLIN   0x01
 217 #define POLLPRI  0x02
 218 #define POLLOUT  0x04
 219 #define POLLERR  0x08
 220 #define POLLHUP  0x10
 221 #define POLLNVAL 0x20
 222 int poll( struct pollfd *fds, unsigned int count, int timeout );
 223 #endif /* HAVE_POLL */
 224
 225 #ifndef HAVE_PREAD
 226 ssize_t pread( int fd, void *buf, size_t count, off_t offset );
 227 #endif /* HAVE_PREAD */
 228
 229 #ifndef HAVE_PWRITE
 230 ssize_t pwrite( int fd, const void *buf, size_t count, off_t offset );
 231 #endif /* HAVE_PWRITE */
 232
 233 #ifndef HAVE_READLINK
 234 int readlink( const char *path, char *buf, size_t size );
 235 #endif /* HAVE_READLINK */
 236
 237 #ifndef HAVE_SYMLINK
 238 int symlink(const char *from, const char *to);
 239 #endif
 240
 241 extern int mkstemps(char *template, int suffix_len);
 242
 243 #else /* NO_LIBWINE_PORT */
 244
 245 #define __WINE_NOT_PORTABLE(func) func##_is_not_portable func##_is_not_portable
 246
 247 #define getopt_long             __WINE_NOT_PORTABLE(getopt_long)
 248 #define getopt_long_only        __WINE_NOT_PORTABLE(getopt_long_only)
 249 #define lstat                   __WINE_NOT_PORTABLE(lstat)
 250 #define pread                   __WINE_NOT_PORTABLE(pread)
 251 #define pwrite                  __WINE_NOT_PORTABLE(pwrite)
 252
 253 #endif /* NO_LIBWINE_PORT */
 254
 255 #endif /* !defined(__WINE_WINE_PORT_H) */