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git.proxmox.com Git - mirror_edk2.git/blob - StdLib/BsdSocketLib/recv.c
2 Implement the recv API.
4 Copyright (c) 2011, Intel Corporation
5 All rights reserved. This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15 #include <SocketInternals.h>
19 Receive data from a network connection.
21 The ::recv routine waits for receive data from a remote network
23 <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/recv.html">POSIX</a>
24 documentation is available online.
26 @param [in] s Socket file descriptor returned from ::socket.
28 @param [in] buffer Address of a buffer to receive the data.
30 @param [in] length Length of the buffer in bytes.
32 @param [in] flags Message control flags
34 @return ::recv returns the number of valid bytes in the buffer,
35 zero if no data was received, and -1 when an error occurs.
36 In the case of an error, errno contains more details.
50 // Receive the data from the remote system
52 BytesRead
= recvfrom ( s
,
60 // Return the number of bytes read