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d7ce7006 | 1 | /** @file\r |
2 | Implement the accept API.\r | |
3 | \r | |
4 | Copyright (c) 2011, Intel Corporation\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
39f4382a | 15 | #include "SocketInternals.h"\r |
d7ce7006 | 16 | \r |
17 | \r | |
18 | /**\r | |
a88c3163 | 19 | Worker routine for ::accept and ::AcceptNB\r |
d7ce7006 | 20 | \r |
a88c3163 | 21 | @param [in] s Socket file descriptor returned from ::socket.\r |
d7ce7006 | 22 | \r |
a88c3163 | 23 | @param [in] bBlockingAllowed TRUE if this is a blocking call\r |
24 | @param [in] address Address of a buffer to receive the remote network address.\r | |
d7ce7006 | 25 | \r |
26 | @param [in, out] address_len Address of a buffer containing the Length in bytes\r | |
27 | of the remote network address buffer. Upon return,\r | |
28 | contains the length of the remote network address.\r | |
29 | \r | |
a88c3163 | 30 | @return AcceptWork returns zero if successful and -1 when an error occurs.\r |
31 | In the case of an error, ::errno contains more details.\r | |
d7ce7006 | 32 | \r |
33 | **/\r | |
34 | int\r | |
35 | AcceptWork (\r | |
36 | int s,\r | |
a88c3163 | 37 | BOOLEAN bBlockingAllowed,\r |
d7ce7006 | 38 | struct sockaddr * address,\r |
39 | socklen_t * address_len\r | |
40 | )\r | |
41 | {\r | |
a88c3163 | 42 | BOOLEAN bBlocking;\r |
d7ce7006 | 43 | INT32 NewSocketFd;\r |
44 | struct __filedes * pDescriptor;\r | |
45 | EFI_SOCKET_PROTOCOL * pNewSocket;\r | |
46 | EFI_SOCKET_PROTOCOL * pSocketProtocol;\r | |
47 | EFI_STATUS Status;\r | |
48 | \r | |
49 | //\r | |
50 | // Assume failure\r | |
51 | //\r | |
52 | NewSocketFd = -1;\r | |
53 | \r | |
54 | //\r | |
55 | // Locate the context for this socket\r | |
56 | //\r | |
57 | pSocketProtocol = BslFdToSocketProtocol ( s,\r | |
58 | &pDescriptor,\r | |
59 | &errno );\r | |
60 | if ( NULL != pSocketProtocol ) {\r | |
61 | //\r | |
a88c3163 | 62 | // Determine if the operation is blocking\r |
d7ce7006 | 63 | //\r |
a88c3163 | 64 | bBlocking = (BOOLEAN)( 0 == ( pDescriptor->Oflags & O_NONBLOCK ));\r |
65 | bBlocking &= bBlockingAllowed;\r | |
39f4382a | 66 | \r |
d7ce7006 | 67 | //\r |
68 | // Attempt to accept a new network connection\r | |
69 | //\r | |
70 | do {\r | |
71 | Status = pSocketProtocol->pfnAccept ( pSocketProtocol,\r | |
72 | address,\r | |
73 | address_len,\r | |
74 | &pNewSocket,\r | |
75 | &errno );\r | |
76 | } while ( bBlocking && ( EFI_NOT_READY == Status ));\r | |
77 | \r | |
78 | //\r | |
79 | // Convert the protocol to a socket\r | |
80 | //\r | |
a88c3163 | 81 | if ( !EFI_ERROR ( Status )) {\r |
82 | NewSocketFd = BslSocketProtocolToFd ( pNewSocket, &errno );\r | |
83 | if ( -1 == NewSocketFd ) {\r | |
84 | //\r | |
85 | // Close the socket\r | |
86 | //\r | |
87 | BslSocketCloseWork ( pNewSocket, NULL );\r | |
88 | }\r | |
d7ce7006 | 89 | }\r |
90 | }\r | |
91 | \r | |
92 | //\r | |
93 | // Return the new socket file descriptor\r | |
94 | //\r | |
95 | return NewSocketFd;\r | |
96 | }\r | |
97 | \r | |
98 | \r | |
99 | /**\r | |
100 | Accept a network connection.\r | |
101 | \r | |
a88c3163 | 102 | The accept routine waits for a network connection to the socket.\r |
103 | It returns the remote network address to the caller if requested.\r | |
104 | \r | |
105 | The\r | |
d7ce7006 | 106 | <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/accept.html">POSIX</a>\r |
107 | documentation is available online.\r | |
108 | \r | |
109 | @param [in] s Socket file descriptor returned from ::socket.\r | |
110 | \r | |
111 | @param [in] address Address of a buffer to receive the remote network address.\r | |
112 | \r | |
113 | @param [in, out] address_len Address of a buffer containing the Length in bytes\r | |
114 | of the remote network address buffer. Upon return,\r | |
115 | contains the length of the remote network address.\r | |
116 | \r | |
a88c3163 | 117 | @return The accept routine returns zero if successful and -1 when an error occurs.\r |
118 | In the case of an error, ::errno contains more details.\r | |
d7ce7006 | 119 | \r |
120 | **/\r | |
121 | int\r | |
122 | accept (\r | |
123 | int s,\r | |
124 | struct sockaddr * address,\r | |
125 | socklen_t * address_len\r | |
126 | )\r | |
127 | {\r | |
128 | //\r | |
129 | // Wait for the accept call to complete\r | |
130 | //\r | |
131 | return AcceptWork ( s, TRUE, address, address_len );\r | |
132 | }\r | |
133 | \r | |
134 | \r | |
135 | /**\r | |
a88c3163 | 136 | Non blocking version of ::accept.\r |
d7ce7006 | 137 | \r |
138 | @param [in] s Socket file descriptor returned from ::socket.\r | |
139 | \r | |
140 | @param [in] address Address of a buffer to receive the remote network address.\r | |
141 | \r | |
142 | @param [in, out] address_len Address of a buffer containing the Length in bytes\r | |
143 | of the remote network address buffer. Upon return,\r | |
144 | contains the length of the remote network address.\r | |
145 | \r | |
7dc13291 | 146 | @return This routine returns zero if successful and -1 when an error occurs.\r |
a88c3163 | 147 | In the case of an error, ::errno contains more details.\r |
d7ce7006 | 148 | \r |
149 | **/\r | |
150 | int\r | |
151 | AcceptNB (\r | |
152 | int s,\r | |
153 | struct sockaddr * address,\r | |
154 | socklen_t * address_len\r | |
155 | )\r | |
156 | {\r | |
157 | //\r | |
158 | // Attempt to accept a network connection\r | |
159 | //\r | |
160 | return AcceptWork ( s, FALSE, address, address_len );\r | |
161 | }\r |