1 /* @(#)clnt_simple.c 2.2 88/08/01 4.0 RPCSRC */
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
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7 * to license or distribute it to anyone else except as part of a product or
8 * program developed by the user.
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11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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.
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.
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
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26 * Sun Microsystems, Inc.
28 * Mountain View, California 94043
30 #if !defined(lint) && defined(SCCSIDS)
31 static char sccsid
[] = "@(#)clnt_simple.c 1.35 87/08/11 Copyr 1984 Sun Micro";
36 * Simplified front end to rpc.
38 * Copyright (C) 1984, Sun Microsystems, Inc.
45 #include <sys/socket.h>
49 static struct callrpc_private
{
52 int oldprognum
, oldversnum
, valid
;
56 callrpc(host
, prognum
, versnum
, procnum
, inproc
, in
, outproc
, out
)
58 xdrproc_t inproc
, outproc
;
61 register struct callrpc_private
*crp
= callrpc_private
;
62 struct sockaddr_in server_addr
;
63 enum clnt_stat clnt_stat
;
64 struct hostent hostbuf
, *hp
;
65 struct timeval timeout
, tottimeout
;
68 crp
= (struct callrpc_private
*)calloc(1, sizeof (*crp
));
71 callrpc_private
= crp
;
73 if (crp
->oldhost
== NULL
) {
74 crp
->oldhost
= malloc(256);
76 crp
->socket
= RPC_ANYSOCK
;
78 if (crp
->valid
&& crp
->oldprognum
== prognum
&& crp
->oldversnum
== versnum
79 && strcmp(crp
->oldhost
, host
) == 0) {
80 /* reuse old client */
87 if (crp
->socket
!= RPC_ANYSOCK
)
89 (void)close(crp
->socket
);
90 crp
->socket
= RPC_ANYSOCK
;
93 clnt_destroy(crp
->client
);
98 buffer
= __alloca (buflen
);
99 while (__gethostbyname_r (host
, &hostbuf
, buffer
, buflen
,
101 if (herr
!= NETDB_INTERNAL
|| errno
!= ERANGE
)
102 return (int) RPC_UNKNOWNHOST
;
105 /* Enlarge the buffer. */
107 buffer
= __alloca (buflen
);
112 bcopy(hp
->h_addr
, (char *)&server_addr
.sin_addr
, hp
->h_length
);
113 server_addr
.sin_family
= AF_INET
;
114 server_addr
.sin_port
= 0;
115 if ((crp
->client
= clntudp_create(&server_addr
, (u_long
)prognum
,
116 (u_long
)versnum
, timeout
, &crp
->socket
)) == NULL
)
117 return ((int) rpc_createerr
.cf_stat
);
119 crp
->oldprognum
= prognum
;
120 crp
->oldversnum
= versnum
;
121 (void) strcpy(crp
->oldhost
, host
);
123 tottimeout
.tv_sec
= 25;
124 tottimeout
.tv_usec
= 0;
125 clnt_stat
= clnt_call(crp
->client
, procnum
, inproc
, in
,
126 outproc
, out
, tottimeout
);
128 * if call failed, empty cache
130 if (clnt_stat
!= RPC_SUCCESS
)
132 return ((int) clnt_stat
);