return program;
}
-
-static unsigned short nfs_tryportbyname(const char *name,
- const char *protocol)
-{
- struct servent *servp = NULL;
-
- servp = getservbyname(name, protocol);
- if (servp != NULL)
- return (unsigned short)ntohl((uint32_t)servp->s_port);
- return 0;
-}
-
-/**
- * nfs_getportbynumber - convert an RPC program number to a port
- * @program: RPC program number to look up
- * @transport: IPPROTO_ value of transport protocol to use
- *
- * Returns a non-zero port number, in host byte order, on success;
- * otherwise zero if some problem occurred.
- */
-unsigned short nfs_getportbynumber(const rpcprog_t program,
- const unsigned short transport)
-{
- char *protocol = (transport == IPPROTO_TCP) ? "tcp" : "udp";
- struct rpcent *rpcp;
- unsigned short port = 0;
-
- rpcp = getrpcbynumber((int)program);
- if (rpcp == NULL)
- return port;
-
- port = nfs_tryportbyname(rpcp->r_name, protocol);
- if (port != 0)
- return port;
-
- if (rpcp->r_aliases) {
- int i;
- for (i = 0; rpcp->r_aliases[i] != NULL; i++) {
- port = nfs_tryportbyname(rpcp->r_aliases[i], protocol);
- if (port != 0)
- break;
- }
- }
-
- return port;
-}