include/unistd.h

   1 /*
   2 ** Copyright 2001-2004 Travis Geiselbrecht. All rights reserved.
   3 ** Copyright 2002, Manuel J. Petit. All rights reserved.
   4 ** Distributed under the terms of the NewOS License.
   5 */
   6
   7 #ifndef __newos__libc_unistd__hh__
   8 #define __newos__libc_unistd__hh__
   9
  10 #include <sys/types.h>
  11
  12 #ifdef __cplusplus
  13 extern "C" {
  14 #endif
  15
  16 /* whence values for lseek() */
  17 #define SEEK_SET 0
  18 #define SEEK_CUR 1
  19 #define SEEK_END 2
  20
  21 void    _exit(int);
  22
  23 int     open(char const *, int, ...);
  24 int     close(int);
  25 int     dup(int);
  26 int     dup2(int, int);
  27 int             unlink(const char *);
  28 int             fsync(int);
  29 void    sync(void);
  30
  31 off_t   lseek(int, off_t, int);
  32 ssize_t read(int, void *, size_t);
  33 ssize_t pread(int, void *, size_t, off_t);
  34 ssize_t write(int, void const*, size_t);
  35 ssize_t pwrite(int, void const*, size_t, off_t);
  36
  37 unsigned sleep(unsigned);
  38 int      usleep(unsigned);
  39
  40 int   chdir(char *);
  41 char *getcwd(char *, size_t);
  42 char *getwd(char *);
  43
  44 int             pipe(int fds[2]);
  45
  46 /* not strictly supposed to be here, and doesn't quite match unix ioctl() */
  47 int             ioctl(int, int, void *, size_t);
  48
  49 /* process groups */
  50 int setpgid(pid_t pid, pid_t pgid);
  51 pid_t getpgid(pid_t pid);
  52 int setpgrp(void);
  53 pid_t getpgrp(void);
  54
  55 /* sessions */
  56 pid_t getsid(pid_t pid);
  57 pid_t setsid(void);
  58
  59 #ifdef __cplusplus
  60 } /* extern "C" */
  61 #endif
  62
  63
  64 #endif
  65