compilers/linux86-0.16.17/libc/include/unistd.h

   1 /* unistd.h <ndf@linux.mit.edu> */
   2 #include <features.h>
   3 #include <sys/types.h>
   4
   5 #ifndef __UNISTD_H
   6 #define __UNISTD_H
   7
   8 #define STDIN_FILENO 0
   9 #define STDOUT_FILENO 1
  10 #define STDERR_FILENO 2
  11
  12 extern int close __P ((int));
  13 extern size_t read __P ((int __fd, char * __buf, size_t __nbytes));
  14 extern size_t write __P ((int __fd, __const char * __buf, size_t __n));
  15 extern off_t lseek __P ((int __fd, off_t __n, int __whence));
  16 extern int pipe __P ((int __pipedes[2]));
  17 extern unsigned int alarm __P ((unsigned int __seconds));
  18 extern unsigned int sleep __P ((unsigned int __seconds));
  19 extern int pause __P ((void));
  20 extern char*    crypt __P((__const char *__key, __const char *__salt));
  21
  22 #ifndef SEEK_SET
  23 #define SEEK_SET 0
  24 #define SEEK_CUR 1
  25 #define SEEK_END 2
  26 #endif
  27
  28 #ifndef R_OK
  29 #define R_OK    4               /* Test for read permission.  */
  30 #define W_OK    2               /* Test for write permission.  */
  31 #define X_OK    1               /* Test for execute permission.  */
  32 #define F_OK    0               /* Test for existence.  */
  33 #endif
  34
  35 #define _POSIX_VDISABLE '\0'
  36
  37 #endif /* __UNISTD_H */
  38
  39