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
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.
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.
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
24 * Sun has been advised of the possibility of such damages.
26 * Sun Microsystems, Inc.
28 * Mountain View, California 94043
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.
48 #include "rpc_private.h"
49 #include <sys/socket.h>
54 struct callrpc_private_s
58 u_long oldprognum
, oldversnum
, valid
;
61 #ifdef __UCLIBC_HAS_THREADS__
62 #define callrpc_private (*(struct callrpc_private_s **)&RPC_THREAD_VARIABLE(callrpc_private_s))
64 static struct callrpc_private_s
*callrpc_private
;
68 callrpc (const char *host
, u_long prognum
, u_long versnum
, u_long procnum
,
69 xdrproc_t inproc
, const char *in
, xdrproc_t outproc
, char *out
)
71 struct callrpc_private_s
*crp
= callrpc_private
;
72 struct sockaddr_in server_addr
;
73 enum clnt_stat clnt_stat
;
74 struct hostent hostbuf
, *hp
;
75 struct timeval timeout
, tottimeout
;
79 crp
= (struct callrpc_private_s
*) calloc (1, sizeof (*crp
));
82 callrpc_private
= crp
;
84 if (crp
->oldhost
== NULL
)
86 crp
->oldhost
= malloc (256);
88 crp
->socket
= RPC_ANYSOCK
;
90 if (crp
->valid
&& crp
->oldprognum
== prognum
&& crp
->oldversnum
== versnum
91 && strcmp (crp
->oldhost
, host
) == 0)
93 /* reuse old client */
102 if (crp
->socket
!= RPC_ANYSOCK
)
104 (void) close (crp
->socket
);
105 crp
->socket
= RPC_ANYSOCK
;
109 clnt_destroy (crp
->client
);
114 buffer
= alloca (buflen
);
115 while (gethostbyname_r (host
, &hostbuf
, buffer
, buflen
,
118 if (herr
!= NETDB_INTERNAL
|| errno
!= ERANGE
)
119 return (int) RPC_UNKNOWNHOST
;
122 /* Enlarge the buffer. */
124 buffer
= alloca (buflen
);
129 memcpy ((char *) &server_addr
.sin_addr
, hp
->h_addr
, hp
->h_length
);
130 server_addr
.sin_family
= AF_INET
;
131 server_addr
.sin_port
= 0;
132 if ((crp
->client
= clntudp_create (&server_addr
, (u_long
) prognum
,
133 (u_long
) versnum
, timeout
, &crp
->socket
)) == NULL
)
134 return (int) get_rpc_createerr().cf_stat
;
136 crp
->oldprognum
= prognum
;
137 crp
->oldversnum
= versnum
;
138 (void) strncpy (crp
->oldhost
, host
, 255);
139 crp
->oldhost
[255] = '\0';
141 tottimeout
.tv_sec
= 25;
142 tottimeout
.tv_usec
= 0;
143 clnt_stat
= clnt_call (crp
->client
, procnum
, inproc
, (char *) in
,
144 outproc
, out
, tottimeout
);
146 * if call failed, empty cache
148 if (clnt_stat
!= RPC_SUCCESS
)
150 return (int) clnt_stat
;
153 #ifdef __UCLIBC_HAS_THREADS__
154 void attribute_hidden
__rpc_thread_clnt_cleanup (void)
156 struct callrpc_private_s
*rcp
= RPC_THREAD_VARIABLE(callrpc_private_s
);
160 CLNT_DESTROY (rcp
->client
);
164 #endif /* __UCLIBC_HAS_THREADS__ */