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- /* @(#)clnt_generic.c 2.2 88/08/01 4.0 RPCSRC */
- /*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
- #if !defined(lint) && defined(SCCSIDS)
- static char sccsid[] = "@(#)clnt_generic.c 1.4 87/08/11 (C) 1987 SMI";
- #endif
- /*
- * Copyright (C) 1987, Sun Microsystems, Inc.
- */
- #include <rpc/rpc.h>
- #include <sys/socket.h>
- #include <sys/errno.h>
- #include <netdb.h>
-
- /*
- * Generic client creation: takes (hostname, program-number, protocol) and
- * returns client handle. Default options are set, which the user can
- * change using the rpc equivalent of ioctl()'s.
- */
- CLIENT *
- clnt_create(hostname, prog, vers, proto)
- char *hostname;
- unsigned prog;
- unsigned vers;
- char *proto;
- {
- struct hostent *h;
- struct protoent *p;
- struct sockaddr_in sin;
- int sock;
- struct timeval tv;
- CLIENT *client;
-
- h = gethostbyname(hostname);
- if (h == NULL) {
- rpc_createerr.cf_stat = RPC_UNKNOWNHOST;
- return (NULL);
- }
- if (h->h_addrtype != AF_INET) {
- /*
- * Only support INET for now
- */
- rpc_createerr.cf_stat = RPC_SYSTEMERROR;
- rpc_createerr.cf_error.re_errno = EAFNOSUPPORT;
- return (NULL);
- }
- sin.sin_family = h->h_addrtype;
- sin.sin_port = 0;
- bzero(sin.sin_zero, sizeof(sin.sin_zero));
- bcopy(h->h_addr, (char*)&sin.sin_addr, h->h_length);
- p = getprotobyname(proto);
- if (p == NULL) {
- rpc_createerr.cf_stat = RPC_UNKNOWNPROTO;
- rpc_createerr.cf_error.re_errno = EPFNOSUPPORT;
- return (NULL);
- }
- sock = RPC_ANYSOCK;
- switch (p->p_proto) {
- case IPPROTO_UDP:
- tv.tv_sec = 5;
- tv.tv_usec = 0;
- client = clntudp_create(&sin, prog, vers, tv, &sock);
- if (client == NULL) {
- return (NULL);
- }
- tv.tv_sec = 25;
- clnt_control(client, CLSET_TIMEOUT, &tv);
- break;
- case IPPROTO_TCP:
- client = clnttcp_create(&sin, prog, vers, &sock, 0, 0);
- if (client == NULL) {
- return (NULL);
- }
- tv.tv_sec = 25;
- tv.tv_usec = 0;
- clnt_control(client, CLSET_TIMEOUT, &tv);
- break;
- default:
- rpc_createerr.cf_stat = RPC_SYSTEMERROR;
- rpc_createerr.cf_error.re_errno = EPFNOSUPPORT;
- return (NULL);
- }
- return (client);
- }
-