mirror of https://github.com/acidanthera/audk.git
98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
|
/** @file
|
||
|
|
Implement the send API.
|
||
|
|
|
||
|
|
Copyright (c) 2011, Intel Corporation
|
||
|
|
All rights reserved. This program and the accompanying materials
|
||
|
|
are licensed and made available under the terms and conditions of the BSD License
|
||
|
|
which accompanies this distribution. The full text of the license may be found at
|
||
|
|
http://opensource.org/licenses/bsd-license.php
|
||
|
|
|
||
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||
|
|
|
||
|
|
**/
|
||
|
|
|
||
|
|
#include <SocketInternals.h>
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
Send data using a network connection.
|
||
|
|
|
||
|
|
The ::send routine queues data to the network for transmission.
|
||
|
|
The
|
||
|
|
<a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/send.html">POSIX</a>
|
||
|
|
documentation is available online.
|
||
|
|
|
||
|
|
@param [in] s Socket file descriptor returned from ::socket.
|
||
|
|
|
||
|
|
@param [in] buffer Address of a buffer containing the data to send.
|
||
|
|
|
||
|
|
@param [in] length Length of the buffer in bytes.
|
||
|
|
|
||
|
|
@param [in] flags Message control flags
|
||
|
|
|
||
|
|
@returns ::send returns the number of data bytes that were
|
||
|
|
sent and -1 when an error occurs. In the case of
|
||
|
|
an error, errno contains more details.
|
||
|
|
|
||
|
|
**/
|
||
|
|
ssize_t
|
||
|
|
send (
|
||
|
|
int s,
|
||
|
|
CONST void * buffer,
|
||
|
|
size_t length,
|
||
|
|
int flags
|
||
|
|
)
|
||
|
|
{
|
||
|
|
ssize_t LengthInBytes;
|
||
|
|
CONST UINT8 * pData;
|
||
|
|
struct __filedes * pDescriptor;
|
||
|
|
EFI_SOCKET_PROTOCOL * pSocketProtocol;
|
||
|
|
EFI_STATUS Status;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Assume failure
|
||
|
|
//
|
||
|
|
LengthInBytes = -1;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Locate the context for this socket
|
||
|
|
//
|
||
|
|
pSocketProtocol = BslFdToSocketProtocol ( s,
|
||
|
|
&pDescriptor,
|
||
|
|
&errno );
|
||
|
|
if ( NULL != pSocketProtocol ) {
|
||
|
|
//
|
||
|
|
// Send the data using the socket
|
||
|
|
//
|
||
|
|
pData = buffer;
|
||
|
|
do {
|
||
|
|
errno = 0;
|
||
|
|
Status = pSocketProtocol->pfnSend ( pSocketProtocol,
|
||
|
|
flags,
|
||
|
|
length,
|
||
|
|
pData,
|
||
|
|
(size_t *)&LengthInBytes,
|
||
|
|
NULL,
|
||
|
|
0,
|
||
|
|
&errno );
|
||
|
|
if ( EFI_ERROR ( Status )) {
|
||
|
|
LengthInBytes = -1;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Account for the data sent
|
||
|
|
//
|
||
|
|
pData += LengthInBytes;
|
||
|
|
length -= LengthInBytes;
|
||
|
|
// TODO: Add non-blocking check
|
||
|
|
} while (( 0 != length ) && ( EFI_NOT_READY == Status ));
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Return the number of data bytes sent, -1 for errors
|
||
|
|
//
|
||
|
|
return (INT32)LengthInBytes;
|
||
|
|
}
|