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  1. /*
  2.  * Copyright (c) 2005 Martin Decky
  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
  7.  * are 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 copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup libc
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef LIBC_UNISTD_H_
  36. #define LIBC_UNISTD_H_
  37.  
  38. #include <sys/types.h>
  39. #include <libarch/config.h>
  40.  
  41. #ifndef NULL
  42.     #define NULL  0
  43. #endif
  44.  
  45. #define getpagesize()  (PAGE_SIZE)
  46.  
  47. #ifndef SEEK_SET
  48.     #define SEEK_SET  0
  49.     #define SEEK_CUR  1
  50.     #define SEEK_END  2
  51. #endif
  52.  
  53. extern ssize_t write(int, const void *, size_t);
  54. extern ssize_t read(int, void *, size_t);
  55.  
  56. extern off_t lseek(int, off_t, int);
  57. extern int ftruncate(int, off_t);
  58.  
  59. extern int close(int);
  60. extern int fsync(int);
  61. extern int unlink(const char *);
  62.  
  63. extern char *getcwd(char *buf, size_t);
  64. extern int rmdir(const char *);
  65. extern int chdir(const char *);
  66.  
  67. extern void _exit(int status) __attribute__ ((noreturn));
  68. extern int usleep(unsigned long usec);
  69. extern unsigned int sleep(unsigned int seconds);
  70.  
  71. #endif
  72.  
  73. /** @}
  74.  */
  75.