/* @(#)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 */ #define __FORCE_GLIBC #include <features.h> /* * 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 __P ((const char *hostname, const u_long prog, const u_long vers, const 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); } #ifdef __linux__ bzero((char *) &sin, sizeof(sin)); #endif sin.sin_family = h->h_addrtype; sin.sin_port = 0; #ifndef __linux__ bzero(sin.sin_zero, sizeof(sin.sin_zero)); #endif 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, (char*)&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, (char*)&tv); break; default: rpc_createerr.cf_stat = RPC_SYSTEMERROR; rpc_createerr.cf_error.re_errno = EPFNOSUPPORT; return (NULL); } return (client); }