blob: c9e0d37a44930e0d4825b6179c71c932610f3dfe (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/**
* @file
*
* @brief Write to a File
* @ingroup libcsupport
*/
/*
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/libio_.h>
#include <rtems/seterr.h>
/**
* POSIX 1003.1b 6.4.2 - Write to a File
*
* This routine writes count bytes from from buffer pointed to by buffer
* to the file associated with the open file descriptor, fildes.
*/
ssize_t write(
int fd,
const void *buffer,
size_t count
)
{
rtems_libio_t *iop;
ssize_t n;
rtems_libio_check_buffer( buffer );
rtems_libio_check_count( count );
LIBIO_GET_IOP_WITH_ACCESS( fd, iop, LIBIO_FLAGS_WRITE, EBADF );
/*
* Now process the write() request.
*/
n = (*iop->pathinfo.handlers->write_h)( iop, buffer, count );
rtems_libio_iop_drop( iop );
return n;
}
|
