service_runtime/include/sys/unistd.h

   1 /*
   2  * Copyright 2008, Google Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met:
   8  *
   9  *     * Redistributions of source code must retain the above copyright
  10  * notice, this list of conditions and the following disclaimer.
  11  *     * Redistributions in binary form must reproduce the above
  12  * copyright notice, this list of conditions and the following disclaimer
  13  * in the documentation and/or other materials provided with the
  14  * distribution.
  15  *     * Neither the name of Google Inc. nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32
  33
  34 #ifndef SERVICE_RUNTIME_INCLUDE_SYS_UNISTD_H_
  35 #define SERVICE_RUNTIME_INCLUDE_SYS_UNISTD_H_
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 /*
  42  * We need this file in the service_runtime only to agree on enum values,
  43  * therefore most of it should be compiled only for NaCl applications
  44  */
  45 #ifdef __native_client__
  46 #include <_ansi.h>
  47 #include <sys/types.h>
  48 #include <sys/_types.h>
  49 #define __need_size_t
  50 #define __need_ptrdiff_t
  51 #include <stddef.h>
  52
  53 extern char **environ;
  54
  55 void    _EXFUN(_exit, (int __status ) _ATTRIBUTE ((noreturn)));
  56
  57 int     _EXFUN(access,(const char *__path, int __amode ));
  58 unsigned  _EXFUN(alarm, (unsigned __secs ));
  59 int     _EXFUN(chdir, (const char *__path ));
  60 int     _EXFUN(chmod, (const char *__path, mode_t __mode ));
  61 #if !defined(__INSIDE_CYGWIN__)
  62 int     _EXFUN(chown, (const char *__path, uid_t __owner, gid_t __group ));
  63 #endif
  64 #if defined(__CYGWIN__) || defined(__rtems__)
  65 int     _EXFUN(chroot, (const char *__path ));
  66 #endif
  67 int     _EXFUN(close, (int __fildes ));
  68 #if defined(__CYGWIN__)
  69 size_t  _EXFUN(confstr, (int __name, char *__buf, size_t __len));
  70 #endif
  71 char    _EXFUN(*ctermid, (char *__s ));
  72 char    _EXFUN(*cuserid, (char *__s ));
  73 #if defined(__CYGWIN__)
  74 int     _EXFUN(daemon, (int nochdir, int noclose));
  75 #endif
  76 int     _EXFUN(dup, (int __fildes ));
  77 int     _EXFUN(dup2, (int __fildes, int __fildes2 ));
  78 #if defined(__CYGWIN__)
  79 void    _EXFUN(endusershell, (void));
  80 #endif
  81 int     _EXFUN(execl, (const char *__path, const char *, ... ));
  82 int     _EXFUN(execle, (const char *__path, const char *, ... ));
  83 int     _EXFUN(execlp, (const char *__file, const char *, ... ));
  84 int     _EXFUN(execv, (const char *__path, char * const __argv[] ));
  85 int     _EXFUN(execve, (const char *__path, char * const __argv[], char * const __envp[] ));
  86 int     _EXFUN(execvp, (const char *__file, char * const __argv[] ));
  87 #if defined(__CYGWIN__) || defined(__rtems__) || defined(__SPU__)
  88 int     _EXFUN(fchdir, (int __fildes));
  89 #endif
  90 int     _EXFUN(fchmod, (int __fildes, mode_t __mode ));
  91 #if !defined(__INSIDE_CYGWIN__)
  92 int     _EXFUN(fchown, (int __fildes, uid_t __owner, gid_t __group ));
  93 #endif
  94 pid_t   _EXFUN(fork, (void ));
  95 long    _EXFUN(fpathconf, (int __fd, int __name ));
  96 int     _EXFUN(fsync, (int __fd));
  97 int     _EXFUN(fdatasync, (int __fd));
  98 char    _EXFUN(*getcwd, (char *__buf, size_t __size ));
  99 #if defined(__CYGWIN__)
 100 int     _EXFUN(getdomainname ,(char *__name, size_t __len));
 101 #endif
 102 #if !defined(__INSIDE_CYGWIN__)
 103 gid_t   _EXFUN(getegid, (void ));
 104 uid_t   _EXFUN(geteuid, (void ));
 105 gid_t   _EXFUN(getgid, (void ));
 106 #endif
 107 int     _EXFUN(getgroups, (int __gidsetsize, gid_t __grouplist[] ));
 108 #if defined(__CYGWIN__)
 109 long    _EXFUN(gethostid, (void));
 110 #endif
 111 char    _EXFUN(*getlogin, (void ));
 112 #if defined(_POSIX_THREAD_SAFE_FUNCTIONS)
 113 int _EXFUN(getlogin_r, (char *name, size_t namesize) );
 114 #endif
 115 char    _EXFUN(*getpass, (const char *__prompt));
 116 size_t  _EXFUN(getpagesize, (void));
 117 #if defined(__CYGWIN__)
 118 int    _EXFUN(getpeereid, (int, uid_t *, gid_t *));
 119 #endif
 120 pid_t   _EXFUN(getpgid, (pid_t));
 121 pid_t   _EXFUN(getpgrp, (void ));
 122 pid_t   _EXFUN(getpid, (void ));
 123 pid_t   _EXFUN(getppid, (void ));
 124 #ifdef __CYGWIN__
 125 pid_t   _EXFUN(getsid, (pid_t));
 126 #endif
 127 #if !defined(__INSIDE_CYGWIN__)
 128 uid_t   _EXFUN(getuid, (void ));
 129 #endif
 130 #ifdef __CYGWIN__
 131 char *  _EXFUN(getusershell, (void));
 132 char    _EXFUN(*getwd, (char *__buf ));
 133 int     _EXFUN(iruserok, (unsigned long raddr, int superuser, const char *ruser, const char *luser));
 134 #endif
 135 int     _EXFUN(isatty, (int __fildes ));
 136 #if !defined(__INSIDE_CYGWIN__)
 137 int     _EXFUN(lchown, (const char *__path, uid_t __owner, gid_t __group ));
 138 #endif
 139 int     _EXFUN(link, (const char *__path1, const char *__path2 ));
 140 int     _EXFUN(nice, (int __nice_value ));
 141 #if !defined(__INSIDE_CYGWIN__)
 142 off_t   _EXFUN(lseek, (int __fildes, off_t __offset, int __whence ));
 143 #endif
 144 #if defined(__SPU__)
 145 #define F_ULOCK 0
 146 #define F_LOCK  1
 147 #define F_TLOCK 2
 148 #define F_TEST  3
 149 int     _EXFUN(lockf, (int __fd, int __cmd, off_t __len));
 150 #endif
 151 long    _EXFUN(pathconf, (const char *__path, int __name ));
 152 int     _EXFUN(pause, (void ));
 153 #ifdef __CYGWIN__
 154 int     _EXFUN(pthread_atfork, (void (*)(void), void (*)(void), void (*)(void)));
 155 #endif
 156 int     _EXFUN(pipe, (int __fildes[2] ));
 157 ssize_t _EXFUN(pread, (int __fd, void *__buf, size_t __nbytes, off_t __offset));
 158 ssize_t _EXFUN(pwrite, (int __fd, const void *__buf, size_t __nbytes, off_t __offset));
 159 _READ_WRITE_RETURN_TYPE _EXFUN(read, (int __fd, void *__buf, size_t __nbyte ));
 160 #if defined(__CYGWIN__)
 161 int     _EXFUN(rresvport, (int *__alport));
 162 int     _EXFUN(revoke, (char *__path));
 163 #endif
 164 int     _EXFUN(rmdir, (const char *__path ));
 165 #if defined(__CYGWIN__)
 166 int     _EXFUN(ruserok, (const char *rhost, int superuser, const char *ruser, const char *luser));
 167 #endif
 168 void *  _EXFUN(sbrk,  (ptrdiff_t __incr));
 169 #if !defined(__INSIDE_CYGWIN__)
 170 #if defined(__CYGWIN__)
 171 int     _EXFUN(setegid, (gid_t __gid ));
 172 int     _EXFUN(seteuid, (uid_t __uid ));
 173 #endif
 174 int     _EXFUN(setgid, (gid_t __gid ));
 175 #endif
 176 #if defined(__CYGWIN__)
 177 int     _EXFUN(setgroups, (int ngroups, const gid_t *grouplist ));
 178 #endif
 179 int     _EXFUN(setpgid, (pid_t __pid, pid_t __pgid ));
 180 int     _EXFUN(setpgrp, (void ));
 181 #if defined(__CYGWIN__) && !defined(__INSIDE_CYGWIN__)
 182 int     _EXFUN(setregid, (gid_t __rgid, gid_t __egid));
 183 int     _EXFUN(setreuid, (uid_t __ruid, uid_t __euid));
 184 #endif
 185 pid_t   _EXFUN(setsid, (void ));
 186 #if !defined(__INSIDE_CYGWIN__)
 187 int     _EXFUN(setuid, (uid_t __uid ));
 188 #endif
 189 #if defined(__CYGWIN__)
 190 void    _EXFUN(setusershell, (void));
 191 #endif
 192 unsigned _EXFUN(sleep, (unsigned int __seconds ));
 193 void    _EXFUN(swab, (const void *, void *, ssize_t));
 194 long    _EXFUN(sysconf, (int __name ));
 195 pid_t   _EXFUN(tcgetpgrp, (int __fildes ));
 196 int     _EXFUN(tcsetpgrp, (int __fildes, pid_t __pgrp_id ));
 197 char    _EXFUN(*ttyname, (int __fildes ));
 198 #if defined(__CYGWIN__)
 199 int     _EXFUN(ttyname_r, (int, char *, size_t));
 200 #endif
 201 int     _EXFUN(unlink, (const char *__path ));
 202 int     _EXFUN(usleep, (useconds_t __useconds));
 203 int     _EXFUN(vhangup, (void ));
 204 _READ_WRITE_RETURN_TYPE _EXFUN(write, (int __fd, const void *__buf, size_t __nbyte ));
 205
 206 #ifdef __CYGWIN__
 207 # define __UNISTD_GETOPT__
 208 # include <getopt.h>
 209 # undef __UNISTD_GETOPT__
 210 #else
 211 extern char *optarg;                    /* getopt(3) external variables */
 212 extern int optind, opterr, optopt;
 213 int      getopt(int, char * const [], const char *);
 214 extern int optreset;                    /* getopt(3) external variable */
 215 #endif
 216
 217 #ifndef        _POSIX_SOURCE
 218 pid_t   _EXFUN(vfork, (void ));
 219
 220 extern char *suboptarg;                 /* getsubopt(3) external variable */
 221 int      getsubopt(char **, char * const *, char **);
 222 #endif /* _POSIX_SOURCE */
 223
 224 #ifdef _COMPILING_NEWLIB
 225 /* Provide prototypes for most of the _<systemcall> names that are
 226    provided in newlib for some compilers.  */
 227 int     _EXFUN(_close, (int __fildes ));
 228 pid_t   _EXFUN(_fork, (void ));
 229 pid_t   _EXFUN(_getpid, (void ));
 230 int     _EXFUN(_link, (const char *__path1, const char *__path2 ));
 231 _off_t   _EXFUN(_lseek, (int __fildes, _off_t __offset, int __whence ));
 232 #ifdef __LARGE64_FILES
 233 _off64_t _EXFUN(_lseek64, (int __filedes, _off64_t __offset, int __whence ));
 234 #endif
 235 _READ_WRITE_RETURN_TYPE _EXFUN(_read, (int __fd, void *__buf, size_t __nbyte ));
 236 void *  _EXFUN(_sbrk,  (ptrdiff_t __incr));
 237 int     _EXFUN(_unlink, (const char *__path ));
 238 _READ_WRITE_RETURN_TYPE _EXFUN(_write, (int __fd, const void *__buf, size_t __nbyte ));
 239 int     _EXFUN(_execve, (const char *__path, char * const __argv[], char * const __envp[] ));
 240 #endif
 241
 242 #if defined(__CYGWIN__) || defined(__rtems__) || defined(__sh__) || defined(__SPU__)
 243 #if !defined(__INSIDE_CYGWIN__)
 244 int     _EXFUN(ftruncate, (int __fd, off_t __length));
 245 int     _EXFUN(truncate, (const char *, off_t __length));
 246 #endif
 247 #endif
 248
 249 #if defined(__CYGWIN__) || defined(__rtems__)
 250 int     _EXFUN(getdtablesize, (void));
 251 int     _EXFUN(setdtablesize, (int));
 252 useconds_t _EXFUN(ualarm, (useconds_t __useconds, useconds_t __interval));
 253 #if !(defined  (_WINSOCK_H) || defined (__USE_W32_SOCKETS))
 254 /* winsock[2].h defines as __stdcall, and with int as 2nd arg */
 255 int     _EXFUN(gethostname, (char *__name, size_t __len));
 256 #endif
 257 char *  _EXFUN(mktemp, (char *));
 258 #endif
 259
 260 #if defined(__CYGWIN__) || defined(__SPU__)
 261 void    _EXFUN(sync, (void));
 262 #elif defined(__rtems__)
 263 int     _EXFUN(sync, (void));
 264 #endif
 265
 266 int     _EXFUN(readlink, (const char *__path, char *__buf, int __buflen));
 267 int     _EXFUN(symlink, (const char *__name1, const char *__name2));
 268
 269 #define F_OK    0
 270 #define R_OK    4
 271 #define W_OK    2
 272 #define X_OK    1
 273
 274 # define        SEEK_SET        0
 275 # define        SEEK_CUR        1
 276 # define        SEEK_END        2
 277
 278 #include <sys/features.h>
 279
 280 #define STDIN_FILENO    0       /* standard input file descriptor */
 281 #define STDOUT_FILENO   1       /* standard output file descriptor */
 282 #define STDERR_FILENO   2       /* standard error file descriptor */
 283
 284 #endif  /* __native_client__ */
 285
 286 /*
 287  *  sysconf values as supported by NativeClient
 288  *  TODO: this needs a few more comments
 289  */
 290 enum {
 291   NACL_ABI__SC_NPROCESSORS_ONLN,
 292 #define NACL_ABI__SC_NPROCESSORS_ONLN NACL_ABI__SC_NPROCESSORS_ONLN
 293   NACL_ABI__SC_LAST
 294 };
 295
 296 #ifdef __native_client__
 297 /*
 298  * TODO pathconf and confstr are not supported on NaCl,
 299  * consider removing the definitions below.
 300  */
 301
 302 /*
 303  *  pathconf values per IEEE Std 1003.1, 2004 Edition
 304  */
 305
 306 #define _PC_LINK_MAX                      0
 307 #define _PC_MAX_CANON                     1
 308 #define _PC_MAX_INPUT                     2
 309 #define _PC_NAME_MAX                      3
 310 #define _PC_PATH_MAX                      4
 311 #define _PC_PIPE_BUF                      5
 312 #define _PC_CHOWN_RESTRICTED              6
 313 #define _PC_NO_TRUNC                      7
 314 #define _PC_VDISABLE                      8
 315 #define _PC_ASYNC_IO                      9
 316 #define _PC_PRIO_IO                      10
 317 #define _PC_SYNC_IO                      11
 318 #define _PC_FILESIZEBITS                 12
 319 #define _PC_2_SYMLINKS                   13
 320 #define _PC_SYMLINK_MAX                  14
 321 #ifdef __CYGWIN__
 322 /* Ask for POSIX permission bits support. */
 323 #define _PC_POSIX_PERMISSIONS            90
 324 /* Ask for full POSIX permission support including uid/gid settings. */
 325 #define _PC_POSIX_SECURITY               91
 326 #endif
 327
 328 /*
 329  *  confstr values per IEEE Std 1003.1, 2004 Edition
 330  */
 331
 332 #ifdef __CYGWIN__       /* Only defined on Cygwin for now. */
 333 #define _CS_PATH                               0
 334 #define _CS_POSIX_V6_ILP32_OFF32_CFLAGS        1
 335 #define _CS_XBS5_ILP32_OFF32_CFLAGS           _CS_POSIX_V6_ILP32_OFF32_CFLAGS
 336 #define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS       2
 337 #define _CS_XBS5_ILP32_OFF32_LDFLAGS          _CS_POSIX_V6_ILP32_OFF32_LDFLAGS
 338 #define _CS_POSIX_V6_ILP32_OFF32_LIBS          3
 339 #define _CS_XBS5_ILP32_OFF32_LIBS             _CS_POSIX_V6_ILP32_OFF32_LIBS
 340 #define _CS_XBS5_ILP32_OFF32_LINTFLAGS         4
 341 #define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS       5
 342 #define _CS_XBS5_ILP32_OFFBIG_CFLAGS          _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS
 343 #define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS      6
 344 #define _CS_XBS5_ILP32_OFFBIG_LDFLAGS         _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS
 345 #define _CS_POSIX_V6_ILP32_OFFBIG_LIBS         7
 346 #define _CS_XBS5_ILP32_OFFBIG_LIBS            _CS_POSIX_V6_ILP32_OFFBIG_LIBS
 347 #define _CS_XBS5_ILP32_OFFBIG_LINTFLAGS        8
 348 #define _CS_POSIX_V6_LP64_OFF64_CFLAGS         9
 349 #define _CS_XBS5_LP64_OFF64_CFLAGS            _CS_POSIX_V6_LP64_OFF64_CFLAGS
 350 #define _CS_POSIX_V6_LP64_OFF64_LDFLAGS       10
 351 #define _CS_XBS5_LP64_OFF64_LDFLAGS           _CS_POSIX_V6_LP64_OFF64_LDFLAGS
 352 #define _CS_POSIX_V6_LP64_OFF64_LIBS          11
 353 #define _CS_XBS5_LP64_OFF64_LIBS              _CS_POSIX_V6_LP64_OFF64_LIBS
 354 #define _CS_XBS5_LP64_OFF64_LINTFLAGS         12
 355 #define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS      13
 356 #define _CS_XBS5_LPBIG_OFFBIG_CFLAGS          _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
 357 #define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS     14
 358 #define _CS_XBS5_LPBIG_OFFBIG_LDFLAGS         _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
 359 #define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS        15
 360 #define _CS_XBS5_LPBIG_OFFBIG_LIBS            _CS_POSIX_V6_LPBIG_OFFBIG_LIBS
 361 #define _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS       16
 362 #define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS    17
 363 #endif
 364
 365 #endif  /* __native_client__ */
 366
 367 #ifndef __CYGWIN__
 368 # define        MAXPATHLEN      1024
 369 #endif
 370
 371 #ifdef __cplusplus
 372 }
 373 #endif
 374 #endif /* SERVICE_RUNTIME_INCLUDE_SYS_UNISTD_H_ */