diff options
Diffstat (limited to 'StdLib/BsdSocketLib/accept.c')
| -rw-r--r-- | StdLib/BsdSocketLib/accept.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/StdLib/BsdSocketLib/accept.c b/StdLib/BsdSocketLib/accept.c new file mode 100644 index 0000000000..3dbfe97013 --- /dev/null +++ b/StdLib/BsdSocketLib/accept.c @@ -0,0 +1,157 @@ +/** @file
+ Implement the accept 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>
+
+
+/**
+ Worker routine for ::Accept and ::AcceptNB
+
+ @param [in] s Socket file descriptor returned from ::socket.
+
+ @param [in] bBlocking TRUE if this is a blocking call
+ @param [in] address Address of a buffer to receive the remote network address.
+
+ @param [in, out] address_len Address of a buffer containing the Length in bytes
+ of the remote network address buffer. Upon return,
+ contains the length of the remote network address.
+
+ @returns ::accept returns zero if successful and -1 when an error occurs.
+ In the case of an error, errno contains more details.
+
+ **/
+int
+AcceptWork (
+ int s,
+ BOOLEAN bBlocking,
+ struct sockaddr * address,
+ socklen_t * address_len
+ )
+{
+ INT32 NewSocketFd;
+ struct __filedes * pDescriptor;
+ EFI_SOCKET_PROTOCOL * pNewSocket;
+ EFI_SOCKET_PROTOCOL * pSocketProtocol;
+ EFI_STATUS Status;
+
+ //
+ // Assume failure
+ //
+ NewSocketFd = -1;
+
+ //
+ // Locate the context for this socket
+ //
+ pSocketProtocol = BslFdToSocketProtocol ( s,
+ &pDescriptor,
+ &errno );
+ if ( NULL != pSocketProtocol ) {
+ //
+ // TODO: Update bBlocking by anding with check for NON_BLOCKING
+ //
+
+ //
+ // Attempt to accept a new network connection
+ //
+ do {
+ Status = pSocketProtocol->pfnAccept ( pSocketProtocol,
+ address,
+ address_len,
+ &pNewSocket,
+ &errno );
+ } while ( bBlocking && ( EFI_NOT_READY == Status ));
+
+ //
+ // Convert the protocol to a socket
+ //
+ NewSocketFd = BslSocketProtocolToFd ( pNewSocket, &errno );
+ if ( -1 == NewSocketFd ) {
+ //
+ // Close the socket
+ //
+ BslSocketCloseWork ( pNewSocket, NULL );
+ }
+ }
+
+ //
+ // Return the new socket file descriptor
+ //
+ return NewSocketFd;
+}
+
+
+/**
+ Accept a network connection.
+
+ The ::accept routine waits for a network connection to the socket.
+ It is able to return the remote network address to the caller if
+ requested. The
+ <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/accept.html">POSIX</a>
+ documentation is available online.
+
+ @param [in] s Socket file descriptor returned from ::socket.
+
+ @param [in] address Address of a buffer to receive the remote network address.
+
+ @param [in, out] address_len Address of a buffer containing the Length in bytes
+ of the remote network address buffer. Upon return,
+ contains the length of the remote network address.
+
+ @returns ::accept returns zero if successful and -1 when an error occurs.
+ In the case of an error, errno contains more details.
+
+ **/
+int
+accept (
+ int s,
+ struct sockaddr * address,
+ socklen_t * address_len
+ )
+{
+ //
+ // Wait for the accept call to complete
+ //
+ return AcceptWork ( s, TRUE, address, address_len );
+}
+
+
+/**
+ Non blocking version of accept.
+
+ See ::accept
+
+ @param [in] s Socket file descriptor returned from ::socket.
+
+ @param [in] address Address of a buffer to receive the remote network address.
+
+ @param [in, out] address_len Address of a buffer containing the Length in bytes
+ of the remote network address buffer. Upon return,
+ contains the length of the remote network address.
+
+ @returns This routine returns zero if successful and -1 when an error occurs.
+ In the case of an error, errno contains more details.
+
+ **/
+int
+AcceptNB (
+ int s,
+ struct sockaddr * address,
+ socklen_t * address_len
+ )
+{
+ //
+ // Attempt to accept a network connection
+ //
+ return AcceptWork ( s, FALSE, address, address_len );
+}
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