projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 15637ed4 RG |
1 | /* @(#)clnt_generic.c 2.2 88/08/01 4.0 RPCSRC */ |
| 2 | /* | |
| 3 | * Sun RPC is a product of Sun Microsystems, Inc. and is provided for | |
| 4 | * unrestricted use provided that this legend is included on all tape | |
| 5 | * media and as a part of the software program in whole or part. Users | |
| 6 | * may copy or modify Sun RPC without charge, but are not authorized | |
| 7 | * to license or distribute it to anyone else except as part of a product or | |
| 8 | * program developed by the user. | |
| 9 | * | |
| 10 | * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE | |
| 11 | * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR | |
| 12 | * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. | |
| 13 | * | |
| 14 | * Sun RPC is provided with no support and without any obligation on the | |
| 15 | * part of Sun Microsystems, Inc. to assist in its use, correction, | |
| 16 | * modification or enhancement. | |
| 17 | * | |
| 18 | * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE | |
| 19 | * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC | |
| 20 | * OR ANY PART THEREOF. | |
| 21 | * | |
| 22 | * In no event will Sun Microsystems, Inc. be liable for any lost revenue | |
| 23 | * or profits or other special, indirect and consequential damages, even if | |
| 24 | * Sun has been advised of the possibility of such damages. | |
| 25 | * | |
| 26 | * Sun Microsystems, Inc. | |
| 27 | * 2550 Garcia Avenue | |
| 28 | * Mountain View, California 94043 | |
| 29 | */ | |
| 30 | #if !defined(lint) && defined(SCCSIDS) | |
| 31 | static char sccsid[] = "@(#)clnt_generic.c 1.4 87/08/11 (C) 1987 SMI"; | |
| 32 | #endif | |
| 33 | /* | |
| 34 | * Copyright (C) 1987, Sun Microsystems, Inc. | |
| 35 | */ | |
| 36 | #include <rpc/rpc.h> | |
| 37 | #include <sys/socket.h> | |
| 38 | #include <sys/errno.h> | |
| 39 | #include <netdb.h> | |
| 40 | ||
| 41 | /* | |
| 42 | * Generic client creation: takes (hostname, program-number, protocol) and | |
| 43 | * returns client handle. Default options are set, which the user can | |
| 44 | * change using the rpc equivalent of ioctl()'s. | |
| 45 | */ | |
| 46 | CLIENT * | |
| 47 | clnt_create(hostname, prog, vers, proto) | |
| 48 | char *hostname; | |
| 49 | unsigned prog; | |
| 50 | unsigned vers; | |
| 51 | char *proto; | |
| 52 | { | |
| 53 | struct hostent *h; | |
| 54 | struct protoent *p; | |
| 55 | struct sockaddr_in sin; | |
| 56 | int sock; | |
| 57 | struct timeval tv; | |
| 58 | CLIENT *client; | |
| 59 | ||
| 60 | h = gethostbyname(hostname); | |
| 61 | if (h == NULL) { | |
| 62 | rpc_createerr.cf_stat = RPC_UNKNOWNHOST; | |
| 63 | return (NULL); | |
| 64 | } | |
| 65 | if (h->h_addrtype != AF_INET) { | |
| 66 | /* | |
| 67 | * Only support INET for now | |
| 68 | */ | |
| 69 | rpc_createerr.cf_stat = RPC_SYSTEMERROR; | |
| 70 | rpc_createerr.cf_error.re_errno = EAFNOSUPPORT; | |
| 71 | return (NULL); | |
| 72 | } | |
| 73 | sin.sin_family = h->h_addrtype; | |
| 74 | sin.sin_port = 0; | |
| 75 | bzero(sin.sin_zero, sizeof(sin.sin_zero)); | |
| 76 | bcopy(h->h_addr, (char*)&sin.sin_addr, h->h_length); | |
| 77 | p = getprotobyname(proto); | |
| 78 | if (p == NULL) { | |
| 79 | rpc_createerr.cf_stat = RPC_UNKNOWNPROTO; | |
| 80 | rpc_createerr.cf_error.re_errno = EPFNOSUPPORT; | |
| 81 | return (NULL); | |
| 82 | } | |
| 83 | sock = RPC_ANYSOCK; | |
| 84 | switch (p->p_proto) { | |
| 85 | case IPPROTO_UDP: | |
| 86 | tv.tv_sec = 5; | |
| 87 | tv.tv_usec = 0; | |
| 88 | client = clntudp_create(&sin, prog, vers, tv, &sock); | |
| 89 | if (client == NULL) { | |
| 90 | return (NULL); | |
| 91 | } | |
| 92 | tv.tv_sec = 25; | |
| 93 | clnt_control(client, CLSET_TIMEOUT, &tv); | |
| 94 | break; | |
| 95 | case IPPROTO_TCP: | |
| 96 | client = clnttcp_create(&sin, prog, vers, &sock, 0, 0); | |
| 97 | if (client == NULL) { | |
| 98 | return (NULL); | |
| 99 | } | |
| 100 | tv.tv_sec = 25; | |
| 101 | tv.tv_usec = 0; | |
| 102 | clnt_control(client, CLSET_TIMEOUT, &tv); | |
| 103 | break; | |
| 104 | default: | |
| 105 | rpc_createerr.cf_stat = RPC_SYSTEMERROR; | |
| 106 | rpc_createerr.cf_error.re_errno = EPFNOSUPPORT; | |
| 107 | return (NULL); | |
| 108 | } | |
| 109 | return (client); | |
| 110 | } |