64-bit optimized implementation of trunc.
[glibc.git] / sunrpc / pmap_clnt.c
blob64a53b67dea485f543a2477981786919f5355b86
1 /*
2 * Copyright (C) 1984, Sun Microsystems, Inc.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
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 Sun Microsystems, 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.
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.
32 * pmap_clnt.c
33 * Client interface to pmap rpc service.
36 #include <stdio.h>
37 #include <unistd.h>
38 #include <libintl.h>
39 #include <net/if.h>
40 #include <ifaddrs.h>
41 #include <sys/ioctl.h>
42 #include <sys/socket.h>
43 #include <netinet/in.h>
44 #include <arpa/inet.h>
45 #include <rpc/rpc.h>
46 #include <rpc/pmap_prot.h>
47 #include <rpc/pmap_clnt.h>
50 * Same as get_myaddress, but we try to use the loopback
51 * interface. portmap caches interfaces, and on DHCP clients,
52 * it could be that only loopback is started at this time.
54 static bool_t
55 __get_myaddress (struct sockaddr_in *addr)
57 struct ifaddrs *ifa;
59 if (getifaddrs (&ifa) != 0)
61 perror ("get_myaddress: getifaddrs");
62 exit (1);
65 int loopback = 1;
66 struct ifaddrs *run;
68 again:
69 run = ifa;
70 while (run != NULL)
72 if ((run->ifa_flags & IFF_UP)
73 && run->ifa_addr != NULL
74 && run->ifa_addr->sa_family == AF_INET
75 && ((run->ifa_flags & IFF_LOOPBACK) || loopback == 0))
77 *addr = *((struct sockaddr_in *) run->ifa_addr);
78 addr->sin_port = htons (PMAPPORT);
79 goto out;
82 run = run->ifa_next;
85 if (loopback == 1)
87 loopback = 0;
88 goto again;
90 out:
91 freeifaddrs (ifa);
93 return run == NULL ? FALSE : TRUE;
97 static const struct timeval timeout = {5, 0};
98 static const struct timeval tottimeout = {60, 0};
101 * Set a mapping between program,version and port.
102 * Calls the pmap service remotely to do the mapping.
104 bool_t
105 pmap_set (u_long program, u_long version, int protocol, u_short port)
107 struct sockaddr_in myaddress;
108 int socket = -1;
109 CLIENT *client;
110 struct pmap parms;
111 bool_t rslt;
113 if (!__get_myaddress (&myaddress))
114 return FALSE;
115 client = INTUSE(clntudp_bufcreate) (&myaddress, PMAPPROG, PMAPVERS,
116 timeout, &socket, RPCSMALLMSGSIZE,
117 RPCSMALLMSGSIZE);
118 if (client == (CLIENT *) NULL)
119 return (FALSE);
120 parms.pm_prog = program;
121 parms.pm_vers = version;
122 parms.pm_prot = protocol;
123 parms.pm_port = port;
124 if (CLNT_CALL (client, PMAPPROC_SET, (xdrproc_t)INTUSE(xdr_pmap),
125 (caddr_t)&parms, (xdrproc_t)INTUSE(xdr_bool), (caddr_t)&rslt,
126 tottimeout) != RPC_SUCCESS)
128 clnt_perror (client, _("Cannot register service"));
129 rslt = FALSE;
131 CLNT_DESTROY (client);
132 /* (void)close(socket); CLNT_DESTROY closes it */
133 return rslt;
135 libc_hidden_def (pmap_set)
138 * Remove the mapping between program,version and port.
139 * Calls the pmap service remotely to do the un-mapping.
141 bool_t
142 pmap_unset (u_long program, u_long version)
144 struct sockaddr_in myaddress;
145 int socket = -1;
146 CLIENT *client;
147 struct pmap parms;
148 bool_t rslt;
150 if (!__get_myaddress (&myaddress))
151 return FALSE;
152 client = INTUSE(clntudp_bufcreate) (&myaddress, PMAPPROG, PMAPVERS,
153 timeout, &socket, RPCSMALLMSGSIZE,
154 RPCSMALLMSGSIZE);
155 if (client == (CLIENT *) NULL)
156 return FALSE;
157 parms.pm_prog = program;
158 parms.pm_vers = version;
159 parms.pm_port = parms.pm_prot = 0;
160 CLNT_CALL (client, PMAPPROC_UNSET, (xdrproc_t)INTUSE(xdr_pmap),
161 (caddr_t)&parms, (xdrproc_t)INTUSE(xdr_bool), (caddr_t)&rslt,
162 tottimeout);
163 CLNT_DESTROY (client);
164 /* (void)close(socket); CLNT_DESTROY already closed it */
165 return rslt;
167 libc_hidden_def (pmap_unset)