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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>
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.
55 __get_myaddress (struct sockaddr_in *addr)
59 if (getifaddrs (&ifa) != 0)
61 perror ("get_myaddress: getifaddrs");
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);
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.
105 pmap_set (u_long program, u_long version, int protocol, u_short port)
107 struct sockaddr_in myaddress;
113 if (!__get_myaddress (&myaddress))
115 client = clntudp_bufcreate (&myaddress, PMAPPROG, PMAPVERS, timeout, &socket,
116 RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
117 if (client == (CLIENT *) NULL)
119 parms.pm_prog = program;
120 parms.pm_vers = version;
121 parms.pm_prot = protocol;
122 parms.pm_port = port;
123 if (CLNT_CALL (client, PMAPPROC_SET, (xdrproc_t)xdr_pmap,
124 (caddr_t)&parms, (xdrproc_t)xdr_bool, (caddr_t)&rslt,
125 tottimeout) != RPC_SUCCESS)
127 clnt_perror (client, _("Cannot register service"));
130 CLNT_DESTROY (client);
131 /* (void)close(socket); CLNT_DESTROY closes it */
134 libc_hidden_nolink (pmap_set, GLIBC_2_0)
137 * Remove the mapping between program,version and port.
138 * Calls the pmap service remotely to do the un-mapping.
141 pmap_unset (u_long program, u_long version)
143 struct sockaddr_in myaddress;
149 if (!__get_myaddress (&myaddress))
151 client = clntudp_bufcreate (&myaddress, PMAPPROG, PMAPVERS, timeout, &socket,
152 RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
153 if (client == (CLIENT *) NULL)
155 parms.pm_prog = program;
156 parms.pm_vers = version;
157 parms.pm_port = parms.pm_prot = 0;
158 CLNT_CALL (client, PMAPPROC_UNSET, (xdrproc_t)xdr_pmap,
159 (caddr_t)&parms, (xdrproc_t)xdr_bool, (caddr_t)&rslt,
161 CLNT_DESTROY (client);
162 /* (void)close(socket); CLNT_DESTROY already closed it */
165 libc_hidden_nolink (pmap_unset, GLIBC_2_0)