diff options
Diffstat (limited to 'StdLib/BsdSocketLib/recvfrom.c')
| -rw-r--r-- | StdLib/BsdSocketLib/recvfrom.c | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/StdLib/BsdSocketLib/recvfrom.c b/StdLib/BsdSocketLib/recvfrom.c deleted file mode 100644 index 20b3f4a916..0000000000 --- a/StdLib/BsdSocketLib/recvfrom.c +++ /dev/null @@ -1,201 +0,0 @@ -/** @file
- Implement the recvfrom 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>
-
-
-/**
- Receive data from a network connection and return the remote system's address.
-
- The recvfrom routine waits for receive data from a remote network
- connection. This routine is typically called for SOCK_DGRAM sockets
- when the socket is being shared by multiple remote systems and it is
- important to get the remote system address for a response.
-
- The
- <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/recv.html">POSIX</a>
- documentation is available online.
-
- @param [in] s Socket file descriptor returned from ::socket.
-
- @param [in] buffer Address of a buffer to receive the data.
-
- @param [in] length Length of the buffer in bytes.
-
- @param [in] flags Message control flags
-
- @param [out] address Network address to receive the remote system address
-
- @param [in] address_len Length of the remote network address structure
-
- @return This routine returns the number of valid bytes in the buffer,
- zero if no data was received, and -1 when an error occurs.
- In the case of an error, ::errno contains more details.
-
- **/
-ssize_t
-recvfrom (
- int s,
- void * buffer,
- size_t length,
- int flags,
- struct sockaddr * address,
- socklen_t * address_len
- )
-{
- socklen_t ByteCount;
- ssize_t LengthInBytes;
- UINT8 * pData;
- EFI_SOCKET_PROTOCOL * pSocketProtocol;
- EFI_STATUS Status;
- struct timeval TimeVal;
- EFI_EVENT pTimer;
- UINT64 Timeout;
- ssize_t TotalBytes;
-
- //
- // Assume failure
- //
- LengthInBytes = -1;
-
- //
- // Locate the context for this socket
- //
- pSocketProtocol = BslFdToSocketProtocol ( s, NULL, &errno );
- if ( NULL != pSocketProtocol ) {
- //
- // Receive the data from the socket
- //
- Status = pSocketProtocol->pfnReceive ( pSocketProtocol,
- flags,
- length,
- buffer,
- (size_t *)&LengthInBytes,
- address,
- address_len,
- &errno );
- if ( EFI_ERROR ( Status )) {
- LengthInBytes = -1;
- if ( EAGAIN == errno ) {
- //
- // Get the timeout
- //
- ByteCount = sizeof ( TimeVal );
- LengthInBytes = getsockopt ( s,
- SOL_SOCKET,
- SO_RCVTIMEO,
- &TimeVal,
- &ByteCount );
- if ( 0 == LengthInBytes ) {
- //
- // Compute the timeout
- //
- Timeout = TimeVal.tv_sec;
- Timeout *= 1000 * 1000;
- Timeout += TimeVal.tv_usec;
- Timeout *= 10;
-
- //
- // The timer is only necessary if a timeout is running
- //
- LengthInBytes = -1;
- Status = EFI_SUCCESS;
- pTimer = NULL;
- if ( 0 != Timeout ) {
- Status = gBS->CreateEvent ( EVT_TIMER,
- TPL_NOTIFY,
- NULL,
- NULL,
- &pTimer );
- }
- if ( !EFI_ERROR ( Status )) {
- //
- // Start the timer
- //
- if ( NULL != pTimer ) {
- Status = gBS->SetTimer ( pTimer,
- TimerRelative,
- Timeout );
- }
- if ( !EFI_ERROR ( Status )) {
- //
- // Loop until data is received or the timeout
- // expires
- //
- TotalBytes = 0;
- pData = (UINT8 *)buffer;
- do {
- //
- // Determine if the timeout expired
- //
- if ( NULL != pTimer ) {
- Status = gBS->CheckEvent ( pTimer );
- if ( EFI_SUCCESS == Status ) {
- errno = ETIMEDOUT;
- if ( 0 == TotalBytes ) {
- TotalBytes = -1;
- }
- break;
- }
- }
-
- //
- // Attempt to receive some data
- //
- Status = pSocketProtocol->pfnReceive ( pSocketProtocol,
- flags,
- length,
- pData,
- (size_t *)&LengthInBytes,
- address,
- address_len,
- &errno );
- if ( !EFI_ERROR ( Status )) {
- //
- // Account for the data received
- //
- TotalBytes += LengthInBytes;
- pData += LengthInBytes;
- length -= LengthInBytes;
- }
- } while ( EFI_NOT_READY == Status );
- LengthInBytes = TotalBytes;
-
- //
- // Stop the timer
- //
- if ( NULL != pTimer ) {
- gBS->SetTimer ( pTimer,
- TimerCancel,
- 0 );
- }
- }
-
- //
- // Release the timer
- //
- if ( NULL != pTimer ) {
- gBS->CloseEvent ( pTimer );
- }
- }
- }
- }
- }
- }
-
- //
- // Return the receive data length, -1 for errors
- //
- return LengthInBytes;
-}
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