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33 * Client interface to pmap rpc service.
41 #include <sys/ioctl.h>
42 #include <sys/socket.h>
43 #include <netinet/in.h>
44 #include <arpa/inet.h>
46 #include <rpc/pmap_prot.h>
47 #include <rpc/pmap_clnt.h>
48 #include <shlib-compat.h>
51 * Same as get_myaddress, but we try to use the loopback
52 * interface. portmap caches interfaces, and on DHCP clients,
53 * it could be that only loopback is started at this time.
56 __get_myaddress (struct sockaddr_in *addr)
60 if (getifaddrs (&ifa) != 0)
62 perror ("get_myaddress: getifaddrs");
73 if ((run->ifa_flags & IFF_UP)
74 && run->ifa_addr != NULL
75 && run->ifa_addr->sa_family == AF_INET
76 && ((run->ifa_flags & IFF_LOOPBACK) || loopback == 0))
78 *addr = *((struct sockaddr_in *) run->ifa_addr);
79 addr->sin_port = htons (PMAPPORT);
94 return run == NULL ? FALSE : TRUE;
98 static const struct timeval timeout = {5, 0};
99 static const struct timeval tottimeout = {60, 0};
102 * Set a mapping between program,version and port.
103 * Calls the pmap service remotely to do the mapping.
106 pmap_set (u_long program, u_long version, int protocol, u_short port)
108 struct sockaddr_in myaddress;
114 if (!__get_myaddress (&myaddress))
116 client = clntudp_bufcreate (&myaddress, PMAPPROG, PMAPVERS, timeout, &socket,
117 RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
118 if (client == (CLIENT *) NULL)
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)xdr_pmap,
125 (caddr_t)&parms, (xdrproc_t)xdr_bool, (caddr_t)&rslt,
126 tottimeout) != RPC_SUCCESS)
128 clnt_perror (client, _("Cannot register service"));
131 CLNT_DESTROY (client);
132 /* (void)close(socket); CLNT_DESTROY closes it */
135 libc_hidden_nolink_sunrpc (pmap_set, GLIBC_2_0)
138 * Remove the mapping between program,version and port.
139 * Calls the pmap service remotely to do the un-mapping.
142 pmap_unset (u_long program, u_long version)
144 struct sockaddr_in myaddress;
150 if (!__get_myaddress (&myaddress))
152 client = clntudp_bufcreate (&myaddress, PMAPPROG, PMAPVERS, timeout, &socket,
153 RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
154 if (client == (CLIENT *) NULL)
156 parms.pm_prog = program;
157 parms.pm_vers = version;
158 parms.pm_port = parms.pm_prot = 0;
159 CLNT_CALL (client, PMAPPROC_UNSET, (xdrproc_t)xdr_pmap,
160 (caddr_t)&parms, (xdrproc_t)xdr_bool, (caddr_t)&rslt,
162 CLNT_DESTROY (client);
163 /* (void)close(socket); CLNT_DESTROY already closed it */
166 libc_hidden_nolink_sunrpc (pmap_unset, GLIBC_2_0)