include/sys/unistd.h

   1 #ifndef _SYS_UNISTD_H
   2 #define _SYS_UNISTD_H
   3
   4 #ifdef __cplusplus
   5 extern "C" {
   6 #endif
   7
   8 #include <_ansi.h>
   9 #include <sys/types.h>
  10 #include <sys/_types.h>
  11 #define __need_size_t
  12 #define __need_ptrdiff_t
  13 #include <stddef.h>
  14
  15 extern char **environ;
  16
  17 void    _EXFUN(_exit, (int __status ) _ATTRIBUTE ((noreturn)));
  18
  19 int     _EXFUN(access,(const char *__path, int __amode ));
  20 unsigned  _EXFUN(alarm, (unsigned __secs ));
  21 int     _EXFUN(chdir, (const char *__path ));
  22 int     _EXFUN(chmod, (const char *__path, mode_t __mode ));
  23 int     _EXFUN(chown, (const char *__path, uid_t __owner, gid_t __group ));
  24 #if defined (__CYGWIN__) || defined(__rtems__) || defined (__MSYS__)
  25 int     _EXFUN(chroot, (const char *__path ));
  26 #endif
  27 int     _EXFUN(close, (int __fildes ));
  28 char    _EXFUN(*ctermid, (char *__s ));
  29 char    _EXFUN(*cuserid, (char *__s ));
  30 int     _EXFUN(dup, (int __fildes ));
  31 int     _EXFUN(dup2, (int __fildes, int __fildes2 ));
  32 int     _EXFUN(execl, (const char *__path, const char *, ... ));
  33 int     _EXFUN(execle, (const char *__path, const char *, ... ));
  34 int     _EXFUN(execlp, (const char *__file, const char *, ... ));
  35 int     _EXFUN(execv, (const char *__path, char * const __argv[] ));
  36 int     _EXFUN(execve, (const char *__path, char * const __argv[], char * const __envp[] ));
  37 int     _EXFUN(execvp, (const char *__file, char * const __argv[] ));
  38 int     _EXFUN(fchmod, (int __fildes, mode_t __mode ));
  39 int     _EXFUN(fchown, (int __fildes, uid_t __owner, gid_t __group ));
  40 pid_t   _EXFUN(fork, (void ));
  41 long    _EXFUN(fpathconf, (int __fd, int __name ));
  42 int     _EXFUN(fsync, (int __fd));
  43 char    _EXFUN(*getcwd, (char *__buf, size_t __size ));
  44 gid_t   _EXFUN(getegid, (void ));
  45 uid_t   _EXFUN(geteuid, (void ));
  46 gid_t   _EXFUN(getgid, (void ));
  47 int     _EXFUN(getgroups, (int __gidsetsize, gid_t __grouplist[] ));
  48 char    _EXFUN(*getlogin, (void ));
  49 #if defined(_POSIX_THREAD_SAFE_FUNCTIONS)
  50 int _EXFUN(getlogin_r, (char *name, size_t namesize) );
  51 #endif
  52 char    _EXFUN(*getpass, (__const char *__prompt));
  53 size_t  _EXFUN(getpagesize, (void));
  54 pid_t   _EXFUN(getpgid, (pid_t));
  55 pid_t   _EXFUN(getpgrp, (void ));
  56 pid_t   _EXFUN(getpid, (void ));
  57 pid_t   _EXFUN(getppid, (void ));
  58 uid_t   _EXFUN(getuid, (void ));
  59 #if defined (__CYGWIN__) || defined (__MSYS__)
  60 char    _EXFUN(*getwd, (char *__buf ));
  61 #endif
  62 int     _EXFUN(isatty, (int __fildes ));
  63 int     _EXFUN(lchown, (const char *__path, uid_t __owner, gid_t __group ));
  64 int     _EXFUN(link, (const char *__path1, const char *__path2 ));
  65 int     _EXFUN(nice, (int __nice_value ));
  66 off_t   _EXFUN(lseek, (int __fildes, off_t __offset, int __whence ));
  67 long    _EXFUN(pathconf, (const char *__path, int __name ));
  68 int     _EXFUN(pause, (void ));
  69 #if defined (__CYGWIN__) || defined (__MSYS__)
  70 int     _EXFUN(pthread_atfork, (void (*)(void), void (*)(void), void (*)(void)));
  71 #endif
  72 int     _EXFUN(pipe, (int __fildes[2] ));
  73 _READ_WRITE_RETURN_TYPE _EXFUN(read, (int __fd, void *__buf, size_t __nbyte ));
  74 int     _EXFUN(rmdir, (const char *__path ));
  75 #if defined(__rtems__)
  76 void *  _EXFUN(sbrk,  (ptrdiff_t __incr));
  77 #else
  78 void *  _EXFUN(sbrk,  (size_t __incr));
  79 #endif
  80 #if defined(__CYGWIN__) || defined(__MSYS__)
  81 int     _EXFUN(setegid, (gid_t __gid ));
  82 int     _EXFUN(seteuid, (uid_t __uid ));
  83 #endif
  84 int     _EXFUN(setgid, (gid_t __gid ));
  85 int     _EXFUN(setpgid, (pid_t __pid, pid_t __pgid ));
  86 int     _EXFUN(setpgrp, (void ));
  87 pid_t   _EXFUN(setsid, (void ));
  88 int     _EXFUN(setuid, (uid_t __uid ));
  89 unsigned _EXFUN(sleep, (unsigned int __seconds ));
  90 void    _EXFUN(swab, (const void *, void *, ssize_t));
  91 long    _EXFUN(sysconf, (int __name ));
  92 pid_t   _EXFUN(tcgetpgrp, (int __fildes ));
  93 int     _EXFUN(tcsetpgrp, (int __fildes, pid_t __pgrp_id ));
  94 char    _EXFUN(*ttyname, (int __fildes ));
  95 int     _EXFUN(unlink, (const char *__path ));
  96 int     _EXFUN(vhangup, (void ));
  97 _READ_WRITE_RETURN_TYPE _EXFUN(write, (int __fd, const void *__buf, size_t __nbyte ));
  98
  99 #ifndef        _POSIX_SOURCE
 100 pid_t   _EXFUN(vfork, (void ));
 101 #endif /* _POSIX_SOURCE */
 102
 103 /* Provide prototypes for most of the _<systemcall> names that are
 104    provided in newlib for some compilers.  */
 105 int     _EXFUN(_close, (int __fildes ));
 106 pid_t   _EXFUN(_fork, (void ));
 107 pid_t   _EXFUN(_getpid, (void ));
 108 int     _EXFUN(_link, (const char *__path1, const char *__path2 ));
 109 off_t   _EXFUN(_lseek, (int __fildes, off_t __offset, int __whence ));
 110 _READ_WRITE_RETURN_TYPE _EXFUN(_read, (int __fd, void *__buf, size_t __nbyte ));
 111 void *  _EXFUN(_sbrk,  (size_t __incr));
 112 int     _EXFUN(_unlink, (const char *__path ));
 113 _READ_WRITE_RETURN_TYPE _EXFUN(_write, (int __fd, const void *__buf, size_t __nbyte ));
 114 int     _EXFUN(_execve, (const char *__path, char * const __argv[], char * const __envp[] ));
 115
 116 #if defined(__CYGWIN__) || defined(__rtems__) || defined(__MSYS__)
 117 int     _EXFUN(getdtablesize, (void));
 118 int     _EXFUN(setdtablesize, (int));
 119 unsigned _EXFUN(usleep, (unsigned int __useconds));
 120 int     _EXFUN(ftruncate, (int __fd, off_t __length));
 121 int     _EXFUN(truncate, (const char *, off_t __length));
 122 #if !(defined  (_WINSOCK_H) || defined (__USE_W32_SOCKETS))
 123 /* winsock[2].h defines as __stdcall, and with int as 2nd arg */
 124  int    _EXFUN(gethostname, (char *__name, size_t __len));
 125 #endif
 126 char *  _EXFUN(mktemp, (char *));
 127 int     _EXFUN(sync, (void));
 128 int     _EXFUN(readlink, (const char *__path, char *__buf, int __buflen));
 129 int     _EXFUN(symlink, (const char *__name1, const char *__name2));
 130 #endif
 131
 132 #define F_OK    0
 133 #define R_OK    4
 134 #define W_OK    2
 135 #define X_OK    1
 136
 137 # define        SEEK_SET        0
 138 # define        SEEK_CUR        1
 139 # define        SEEK_END        2
 140
 141 #include <sys/features.h>
 142
 143 #define STDIN_FILENO    0       /* standard input file descriptor */
 144 #define STDOUT_FILENO   1       /* standard output file descriptor */
 145 #define STDERR_FILENO   2       /* standard error file descriptor */
 146
 147 /*
 148  *  4.8.1 Get Configurable System Variables, P1003.1b-1993, p. 96
 149  *
 150  *  NOTE: Table 4-2, Configurable System Variables, p. 96
 151  */
 152
 153 #define _SC_ARG_MAX                 0
 154 #define _SC_CHILD_MAX               1
 155 #define _SC_CLK_TCK                 2
 156 #define _SC_NGROUPS_MAX             3
 157 #define _SC_OPEN_MAX                4
 158   /* no _SC_STREAM_MAX */
 159 #define _SC_JOB_CONTROL             5
 160 #define _SC_SAVED_IDS               6
 161 #define _SC_VERSION                 7
 162 #define _SC_PAGESIZE                8
 163 /* CYGWIN and MSYS-specific values .. do not touch */
 164 #define _SC_NPROCESSORS_CONF        9
 165 #define _SC_NPROCESSORS_ONLN       10
 166 #define _SC_PHYS_PAGES             11
 167 #define _SC_AVPHYS_PAGES           12
 168 /* end of CYGWIN and MSYS-specific values */
 169 #define _SC_MQ_OPEN_MAX            13
 170 #define _SC_MQ_PRIO_MAX            14
 171 #define _SC_RTSIG_MAX              15
 172 #define _SC_SEM_NSEMS_MAX          16
 173 #define _SC_SEM_VALUE_MAX          17
 174 #define _SC_SIGQUEUE_MAX           18
 175 #define _SC_TIMER_MAX              19
 176 #define _SC_TZNAME_MAX             20
 177
 178 #define _SC_ASYNCHRONOUS_IO        21
 179 #define _SC_FSYNC                  22
 180 #define _SC_MAPPED_FILES           23
 181 #define _SC_MEMLOCK                24
 182 #define _SC_MEMLOCK_RANGE          25
 183 #define _SC_MEMORY_PROTECTION      26
 184 #define _SC_MESSAGE_PASSING        27
 185 #define _SC_PRIORITIZED_IO         28
 186 #define _SC_REALTIME_SIGNALS       29
 187 #define _SC_SEMAPHORES             30
 188 #define _SC_SHARED_MEMORY_OBJECTS  31
 189 #define _SC_SYNCHRONIZED_IO        32
 190 #define _SC_TIMERS                 33
 191 #define _SC_AIO_LISTIO_MAX         34
 192 #define _SC_AIO_MAX                35
 193 #define _SC_AIO_PRIO_DELTA_MAX     36
 194 #define _SC_DELAYTIMER_MAX         37
 195
 196 /*
 197  *  P1003.1c/D10, p. 52 adds the following.
 198  */
 199
 200 #define _SC_THREAD_KEYS_MAX              38
 201 #define _SC_THREAD_STACK_MIN             39
 202 #define _SC_THREAD_THREADS_MAX           40
 203 #define _SC_TTY_NAME_MAX                 41
 204
 205 #define _SC_THREADS                      42
 206 #define _SC_THREAD_ATTR_STACKADDR        43
 207 #define _SC_THREAD_ATTR_STACKSIZE        44
 208 #define _SC_THREAD_PRIORITY_SCHEDULING   45
 209 #define _SC_THREAD_PRIO_INHERIT          46
 210 /* _SC_THREAD_PRIO_PROTECT was _SC_THREAD_PRIO_CEILING in early drafts */
 211 #define _SC_THREAD_PRIO_PROTECT          47
 212 #define _SC_THREAD_PRIO_CEILING          _SC_THREAD_PRIO_PROTECT
 213 #define _SC_THREAD_PROCESS_SHARED        48
 214 #define _SC_THREAD_SAFE_FUNCTIONS        49
 215 #define _SC_GETGR_R_SIZE_MAX             50
 216 #define _SC_GETPW_R_SIZE_MAX             51
 217 #define _SC_LOGIN_NAME_MAX               52
 218 #define _SC_THREAD_DESTRUCTOR_ITERATIONS 53
 219
 220 # define        _PC_LINK_MAX            0
 221 # define        _PC_MAX_CANON           1
 222 # define        _PC_MAX_INPUT           2
 223 # define        _PC_NAME_MAX            3
 224 # define        _PC_PATH_MAX            4
 225 # define        _PC_PIPE_BUF            5
 226 # define        _PC_CHOWN_RESTRICTED    6
 227 # define        _PC_NO_TRUNC            7
 228 # define        _PC_VDISABLE            8
 229 # define        _PC_ASYNC_IO            9
 230 # define        _PC_PRIO_IO            10
 231 # define        _PC_SYNC_IO            11
 232 #if defined(__CYGWIN__) || defined(__MSYS__)
 233 /* Ask for POSIX permission bits support. */
 234 # define        _PC_POSIX_PERMISSIONS   90
 235 /* Ask for full POSIX permission support including uid/gid settings. */
 236 # define        _PC_POSIX_SECURITY     91
 237 #endif
 238
 239 /* FIXME: This is temporary until winsup gets sorted out.  */
 240 #if defined(__CYGWIN__) || defined(__MSYS__)
 241 #define MAXPATHLEN (260 - 1 /* NUL */)
 242 #else
 243 # define        MAXPATHLEN      1024
 244 #endif
 245
 246 #ifdef __cplusplus
 247 }
 248 #endif
 249 #endif /* _SYS_UNISTD_H */