+++ /dev/null
-/** @file\r
- Implement the sendto API.\r
-\r
- Copyright (c) 2011, Intel Corporation\r
- All rights reserved. This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-\r
-**/\r
-\r
-#include <SocketInternals.h>\r
-\r
-\r
-/**\r
- Send data using a network connection.\r
-\r
- The sendto routine queues data to the network for transmission.\r
- This routine is typically used for SOCK_DGRAM sockets that are shared\r
- between multiple machine where it is required to specify the target\r
- system address when sending the data.\r
-\r
- The\r
- <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/send.html">POSIX</a>\r
- documentation is available online.\r
-\r
- @param [in] s Socket file descriptor returned from ::socket.\r
-\r
- @param [in] buffer Address of a buffer containing the data to send.\r
-\r
- @param [in] length Length of the buffer in bytes.\r
-\r
- @param [in] flags Message control flags\r
-\r
- @param [in] to Remote system address\r
-\r
- @param [in] tolen Length of remote system address structure\r
-\r
- @return This routine returns the number of data bytes that were\r
- sent and -1 when an error occurs. In the case of\r
- an error, ::errno contains more details.\r
-\r
- **/\r
-ssize_t\r
-sendto (\r
- int s,\r
- const void * buffer,\r
- size_t length,\r
- int flags,\r
- const struct sockaddr * to,\r
- socklen_t tolen\r
- )\r
-{\r
- BOOLEAN bBlocking;\r
- ssize_t LengthInBytes;\r
- CONST UINT8 * pData;\r
- struct __filedes * pDescriptor;\r
- EFI_SOCKET_PROTOCOL * pSocketProtocol;\r
- EFI_STATUS Status;\r
-\r
- //\r
- // Assume failure\r
- //\r
- LengthInBytes = -1;\r
-\r
- //\r
- // Locate the context for this socket\r
- //\r
- pSocketProtocol = BslFdToSocketProtocol ( s,\r
- &pDescriptor,\r
- &errno );\r
- if ( NULL != pSocketProtocol ) {\r
- //\r
- // Determine if the operation is blocking\r
- //\r
- bBlocking = (BOOLEAN)( 0 == ( pDescriptor->Oflags & O_NONBLOCK ));\r
-\r
- //\r
- // Send the data using the socket\r
- //\r
- pData = buffer;\r
- do {\r
- errno = 0;\r
- Status = pSocketProtocol->pfnTransmit ( pSocketProtocol,\r
- flags,\r
- length,\r
- pData,\r
- (size_t *)&LengthInBytes,\r
- to,\r
- tolen,\r
- &errno );\r
- if ( EFI_ERROR ( Status ) && ( EFI_NOT_READY != Status )) {\r
- LengthInBytes = -1;\r
- break;\r
- }\r
-\r
- //\r
- // Account for the data sent\r
- //\r
- pData += LengthInBytes;\r
- length -= LengthInBytes;\r
- } while (( 0 != length ) && ( EFI_NOT_READY == Status ) && bBlocking );\r
- }\r
-\r
- //\r
- // Return the number of data bytes sent, -1 for errors\r
- //\r
- return (INT32)LengthInBytes;\r
-}\r