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28f540f4 | 1 | /* |
a7ab6ec8 | 2 | * Copyright (c) 2010, Oracle America, Inc. |
cb636bb2 | 3 | * |
a7ab6ec8 UD |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions are | |
6 | * met: | |
cb636bb2 | 7 | * |
a7ab6ec8 UD |
8 | * * Redistributions of source code must retain the above copyright |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * * Redistributions in binary form must reproduce the above | |
11 | * copyright notice, this list of conditions and the following | |
12 | * disclaimer in the documentation and/or other materials | |
13 | * provided with the distribution. | |
14 | * * Neither the name of the "Oracle America, Inc." nor the names of its | |
15 | * contributors may be used to endorse or promote products derived | |
16 | * from this software without specific prior written permission. | |
28f540f4 | 17 | * |
a7ab6ec8 UD |
18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
22 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
23 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE | |
25 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
27 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
28 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
28f540f4 | 30 | */ |
f8afba91 | 31 | |
e4cf5070 UD |
32 | #include <alloca.h> |
33 | #include <errno.h> | |
e7fd8a39 | 34 | #include <string.h> |
28f540f4 RM |
35 | #include <rpc/rpc.h> |
36 | #include <sys/socket.h> | |
28f540f4 | 37 | #include <netdb.h> |
82f43dd2 | 38 | #include <shlib-compat.h> |
28f540f4 RM |
39 | |
40 | /* | |
41 | * Generic client creation: takes (hostname, program-number, protocol) and | |
e4cf5070 | 42 | * returns client handle. Default options are set, which the user can |
28f540f4 RM |
43 | * change using the rpc equivalent of ioctl()'s. |
44 | */ | |
45 | CLIENT * | |
e7fd8a39 UD |
46 | clnt_create (const char *hostname, u_long prog, u_long vers, |
47 | const char *proto) | |
28f540f4 | 48 | { |
e7fd8a39 UD |
49 | struct protoent protobuf, *p; |
50 | size_t prtbuflen; | |
51 | char *prttmpbuf; | |
52 | struct sockaddr_in sin; | |
e852e889 | 53 | struct sockaddr_un sun; |
e7fd8a39 UD |
54 | int sock; |
55 | struct timeval tv; | |
56 | CLIENT *client; | |
e4cf5070 | 57 | |
e852e889 UD |
58 | if (strcmp (proto, "unix") == 0) |
59 | { | |
226b4677 FW |
60 | if (__sockaddr_un_set (&sun, hostname) < 0) |
61 | { | |
62 | struct rpc_createerr *ce = &get_rpc_createerr (); | |
63 | ce->cf_stat = RPC_SYSTEMERROR; | |
64 | ce->cf_error.re_errno = errno; | |
65 | return NULL; | |
66 | } | |
e852e889 | 67 | sock = RPC_ANYSOCK; |
7b57bfe5 | 68 | client = clntunix_create (&sun, prog, vers, &sock, 0, 0); |
e852e889 UD |
69 | if (client == NULL) |
70 | return NULL; | |
bc710b3b UD |
71 | #if 0 |
72 | /* This is not wanted. This would disable the user from having | |
73 | a timeout in the clnt_call() call. Only a call to cnlt_control() | |
74 | by the user should set the timeout value. */ | |
e852e889 UD |
75 | tv.tv_sec = 25; |
76 | tv.tv_usec = 0; | |
77 | clnt_control (client, CLSET_TIMEOUT, (char *)&tv); | |
bc710b3b | 78 | #endif |
e852e889 UD |
79 | return client; |
80 | } | |
81 | ||
5c6e6747 FW |
82 | if (__libc_rpc_gethostbyname (hostname, &sin) != 0) |
83 | return NULL; | |
e4cf5070 | 84 | |
e7fd8a39 UD |
85 | prtbuflen = 1024; |
86 | prttmpbuf = __alloca (prtbuflen); | |
1d863dc0 UD |
87 | while (__getprotobyname_r (proto, &protobuf, prttmpbuf, prtbuflen, &p) != 0 |
88 | || p == NULL) | |
e7fd8a39 UD |
89 | if (errno != ERANGE) |
90 | { | |
543cf8a9 UD |
91 | struct rpc_createerr *ce = &get_rpc_createerr (); |
92 | ce->cf_stat = RPC_UNKNOWNPROTO; | |
93 | ce->cf_error.re_errno = EPFNOSUPPORT; | |
e7fd8a39 UD |
94 | return NULL; |
95 | } | |
96 | else | |
97 | { | |
98 | /* Enlarge the buffer. */ | |
99 | prtbuflen *= 2; | |
e4cf5070 | 100 | prttmpbuf = __alloca (prtbuflen); |
e7fd8a39 | 101 | } |
e4cf5070 | 102 | |
e7fd8a39 UD |
103 | sock = RPC_ANYSOCK; |
104 | switch (p->p_proto) | |
105 | { | |
106 | case IPPROTO_UDP: | |
107 | tv.tv_sec = 5; | |
108 | tv.tv_usec = 0; | |
7b57bfe5 | 109 | client = clntudp_create (&sin, prog, vers, tv, &sock); |
e7fd8a39 UD |
110 | if (client == NULL) |
111 | { | |
112 | return NULL; | |
113 | } | |
bc710b3b UD |
114 | #if 0 |
115 | /* This is not wanted. This would disable the user from having | |
116 | a timeout in the clnt_call() call. Only a call to cnlt_control() | |
117 | by the user should set the timeout value. */ | |
e7fd8a39 UD |
118 | tv.tv_sec = 25; |
119 | clnt_control (client, CLSET_TIMEOUT, (char *)&tv); | |
bc710b3b | 120 | #endif |
e7fd8a39 UD |
121 | break; |
122 | case IPPROTO_TCP: | |
7b57bfe5 | 123 | client = clnttcp_create (&sin, prog, vers, &sock, 0, 0); |
e7fd8a39 UD |
124 | if (client == NULL) |
125 | { | |
126 | return NULL; | |
28f540f4 | 127 | } |
bc710b3b UD |
128 | #if 0 |
129 | /* This is not wanted. This would disable the user from having | |
130 | a timeout in the clnt_call() call. Only a call to cnlt_control() | |
131 | by the user should set the timeout value. */ | |
e7fd8a39 UD |
132 | tv.tv_sec = 25; |
133 | tv.tv_usec = 0; | |
134 | clnt_control (client, CLSET_TIMEOUT, (char *)&tv); | |
bc710b3b | 135 | #endif |
e7fd8a39 UD |
136 | break; |
137 | default: | |
543cf8a9 UD |
138 | { |
139 | struct rpc_createerr *ce = &get_rpc_createerr (); | |
140 | ce->cf_stat = RPC_SYSTEMERROR; | |
141 | ce->cf_error.re_errno = EPFNOSUPPORT; | |
142 | } | |
e7fd8a39 UD |
143 | return (NULL); |
144 | } | |
145 | return client; | |
28f540f4 | 146 | } |
7b57bfe5 UD |
147 | #ifdef EXPORT_RPC_SYMBOLS |
148 | libc_hidden_def (clnt_create) | |
149 | #else | |
021db4be | 150 | libc_hidden_nolink_sunrpc (clnt_create, GLIBC_2_0) |
7b57bfe5 | 151 | #endif |