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1 office 1 /**
2 * @file DummyPRFileDesc.c
3 * @author Ambroz Bizjak <ambrop7@gmail.com>
4 *
5 * @section LICENSE
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the author nor the
15 * names of its contributors may be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29  
30 #include <stdlib.h>
31 #include <string.h>
32 #include <limits.h>
33  
34 #include <prerror.h>
35 #include <prmem.h>
36  
37 #include <misc/debug.h>
38 #include <misc/offset.h>
39  
40 #include <nspr_support/DummyPRFileDesc.h>
41  
42 #ifndef NDEBUG
43 int dummyprfiledesc_initialized = 0;
44 #endif
45 PRDescIdentity dummyprfiledesc_identity;
46  
47 static PRStatus method_close (PRFileDesc *fd)
48 {
49 return PR_SUCCESS;
50 }
51  
52 static PRStatus method_getpeername (PRFileDesc *fd, PRNetAddr *addr)
53 {
54 PR_SetError(PR_UNKNOWN_ERROR, 0);
55 return PR_FAILURE;
56 }
57  
58 static PRIntn _PR_InvalidIntn (void)
59 {
60 ASSERT(0)
61 PR_SetError(PR_INVALID_METHOD_ERROR, 0);
62 return -1;
63 }
64  
65 static PRInt16 _PR_InvalidInt16 (void)
66 {
67 ASSERT(0)
68 PR_SetError(PR_INVALID_METHOD_ERROR, 0);
69 return -1;
70 }
71  
72 static PRInt32 _PR_InvalidInt32 (void)
73 {
74 ASSERT(0)
75 PR_SetError(PR_INVALID_METHOD_ERROR, 0);
76 return -1;
77 }
78  
79 static PRInt64 _PR_InvalidInt64 (void)
80 {
81 ASSERT(0)
82 PR_SetError(PR_INVALID_METHOD_ERROR, 0);
83 return -1;
84 }
85  
86 static PROffset32 _PR_InvalidOffset32 (void)
87 {
88 ASSERT(0)
89 PR_SetError(PR_INVALID_METHOD_ERROR, 0);
90 return -1;
91 }
92  
93 static PROffset64 _PR_InvalidOffset64 (void)
94 {
95 ASSERT(0)
96 PR_SetError(PR_INVALID_METHOD_ERROR, 0);
97 return -1;
98 }
99  
100 static PRStatus _PR_InvalidStatus (void)
101 {
102 ASSERT(0)
103 PR_SetError(PR_INVALID_METHOD_ERROR, 0);
104 return PR_FAILURE;
105 }
106  
107 static PRFileDesc *_PR_InvalidDesc (void)
108 {
109 ASSERT(0)
110 PR_SetError(PR_INVALID_METHOD_ERROR, 0);
111 return NULL;
112 }
113  
114 static PRIOMethods methods = {
115 (PRDescType)0,
116 method_close,
117 (PRReadFN)_PR_InvalidInt32,
118 (PRWriteFN)_PR_InvalidInt32,
119 (PRAvailableFN)_PR_InvalidInt32,
120 (PRAvailable64FN)_PR_InvalidInt64,
121 (PRFsyncFN)_PR_InvalidStatus,
122 (PRSeekFN)_PR_InvalidOffset32,
123 (PRSeek64FN)_PR_InvalidOffset64,
124 (PRFileInfoFN)_PR_InvalidStatus,
125 (PRFileInfo64FN)_PR_InvalidStatus,
126 (PRWritevFN)_PR_InvalidInt32,
127 (PRConnectFN)_PR_InvalidStatus,
128 (PRAcceptFN)_PR_InvalidDesc,
129 (PRBindFN)_PR_InvalidStatus,
130 (PRListenFN)_PR_InvalidStatus,
131 (PRShutdownFN)_PR_InvalidStatus,
132 (PRRecvFN)_PR_InvalidInt32,
133 (PRSendFN)_PR_InvalidInt32,
134 (PRRecvfromFN)_PR_InvalidInt32,
135 (PRSendtoFN)_PR_InvalidInt32,
136 (PRPollFN)_PR_InvalidInt16,
137 (PRAcceptreadFN)_PR_InvalidInt32,
138 (PRTransmitfileFN)_PR_InvalidInt32,
139 (PRGetsocknameFN)_PR_InvalidStatus,
140 method_getpeername,
141 (PRReservedFN)_PR_InvalidIntn,
142 (PRReservedFN)_PR_InvalidIntn,
143 (PRGetsocketoptionFN)_PR_InvalidStatus,
144 (PRSetsocketoptionFN)_PR_InvalidStatus,
145 (PRSendfileFN)_PR_InvalidInt32,
146 (PRConnectcontinueFN)_PR_InvalidStatus,
147 (PRReservedFN)_PR_InvalidIntn,
148 (PRReservedFN)_PR_InvalidIntn,
149 (PRReservedFN)_PR_InvalidIntn,
150 (PRReservedFN)_PR_InvalidIntn
151 };
152  
153 int DummyPRFileDesc_GlobalInit (void)
154 {
155 ASSERT(!dummyprfiledesc_initialized)
156  
157 if ((dummyprfiledesc_identity = PR_GetUniqueIdentity("DummyPRFileDesc")) == PR_INVALID_IO_LAYER) {
158 return 0;
159 }
160  
161 #ifndef NDEBUG
162 dummyprfiledesc_initialized = 1;
163 #endif
164  
165 return 1;
166 }
167  
168 void DummyPRFileDesc_Create (PRFileDesc *prfd)
169 {
170 ASSERT(dummyprfiledesc_initialized)
171  
172 memset(prfd, 0, sizeof(*prfd));
173 prfd->methods = &methods;
174 prfd->secret = NULL;
175 prfd->identity = dummyprfiledesc_identity;
176 }