src/system/libroot/posix/unistd/write.c

   1 /*
   2  * Copyright 2002-2007, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Copyright 2001, Manuel J. Petit. All rights reserved.
   6  * Distributed under the terms of the NewOS License.
   7  */
   8
   9
  10 #include <unistd.h>
  11
  12 #include <errno.h>
  13 #include <pthread.h>
  14
  15 #include <syscall_utils.h>
  16
  17 #include <errno_private.h>
  18 #include <syscalls.h>
  19
  20
  21 ssize_t
  22 write(int fd, void const *buffer, size_t bufferSize)
  23 {
  24         int status = _kern_write(fd, -1, buffer, bufferSize);
  25
  26         RETURN_AND_SET_ERRNO_TEST_CANCEL(status);
  27 }
  28
  29
  30 ssize_t
  31 write_pos(int fd, off_t pos, const void *buffer, size_t bufferSize)
  32 {
  33         if (pos < 0)
  34                 RETURN_AND_SET_ERRNO_TEST_CANCEL(B_BAD_VALUE);
  35
  36         RETURN_AND_SET_ERRNO_TEST_CANCEL(_kern_write(fd, pos, buffer, bufferSize));
  37 }
  38
  39
  40 ssize_t
  41 pwrite(int fd, const void *buffer, size_t bufferSize, off_t pos)
  42 {
  43         if (pos < 0)
  44                 RETURN_AND_SET_ERRNO_TEST_CANCEL(B_BAD_VALUE);
  45
  46         RETURN_AND_SET_ERRNO_TEST_CANCEL(_kern_write(fd, pos, buffer, bufferSize));
  47 }