source: rtems/cpukit/librpc/src/rpc/clnt_simple.c @ d16b2d3

4.104.114.84.95
Last change on this file since d16b2d3 was d16b2d3, checked in by Ralf Corsepius <ralf.corsepius@…>, on Nov 27, 2003 at 9:35:40 AM

2003-11-27 Ralf Corsepius <corsepiu@…>

  • include/rpc/rpc.hinclude/rpc/rpc.h: Rename struct rtems_rpc_task_variables into struct _rtems_rpc_task_variables (Avoid symbol conflict between struct and variable). struct _rtems_rpc_task_variables *rtems_rpc_task_variables; Reflect changes above.
  • src/rpc/clnt_perror.c, src/rpc/clnt_raw.c, src/rpc/clnt_simple.c, src/rpc/rpcdname.c, src/rpc/rtems_rpc.c, src/rpc/svc.c, src/rpc/svc_auth.c, src/rpc/svc_raw.c, src/rpc/svc_simple.c: Reflect changes above.
  • Property mode set to 100644
File size: 3.8 KB
Line 
1/*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part.  Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
8 *
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12 *
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
16 *
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
20 *
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
24 *
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California  94043
28 */
29
30#if defined(LIBC_SCCS) && !defined(lint)
31/*static char *sccsid = "from: @(#)clnt_simple.c 1.35 87/08/11 Copyr 1984 Sun Micro";*/
32/*static char *sccsid = "from: @(#)clnt_simple.c        2.2 88/08/01 4.0 RPCSRC";*/
33static char *rcsid = "$FreeBSD: src/lib/libc/rpc/clnt_simple.c,v 1.12 2000/01/27 23:06:35 jasone Exp $";
34#endif
35
36/*
37 * clnt_simple.c
38 * Simplified front end to rpc.
39 *
40 * Copyright (C) 1984, Sun Microsystems, Inc.
41 */
42
43#include <sys/param.h>
44#include <stdio.h>
45#include <stdlib.h>
46#include <unistd.h>
47#include <string.h>
48#include <rpc/rpc.h>
49#include <sys/socket.h>
50#include <netdb.h>
51
52struct call_rpc_private {
53        CLIENT  *client;
54        int     socket;
55        int     oldprognum, oldversnum, valid;
56        char    *oldhost;
57};
58#define callrpc_private ((struct call_rpc_private *)(rtems_rpc_task_variables)->call_rpc_private)
59
60int
61callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out)
62        char *host;
63        int prognum, versnum, procnum;
64        xdrproc_t inproc, outproc;
65        char *in, *out;
66{
67        register struct call_rpc_private *crp = callrpc_private;
68        struct sockaddr_in server_addr;
69        enum clnt_stat clnt_stat;
70        struct hostent *hp;
71        struct timeval timeout, tottimeout;
72
73        if (crp == 0) {
74                crp = (struct call_rpc_private *)calloc(1, sizeof (*crp));
75                if (crp == 0)
76                        return (0);
77                callrpc_private = crp;
78        }
79        if (crp->oldhost == NULL) {
80                crp->oldhost = malloc(MAXHOSTNAMELEN);
81                crp->oldhost[0] = 0;
82                crp->socket = RPC_ANYSOCK;
83        }
84        if (crp->valid && crp->oldprognum == prognum && crp->oldversnum == versnum
85                && strcmp(crp->oldhost, host) == 0) {
86                /* reuse old client */
87        } else {
88                crp->valid = 0;
89                if (crp->socket != -1)
90                        (void)_RPC_close(crp->socket);
91                crp->socket = RPC_ANYSOCK;
92                if (crp->client) {
93                        clnt_destroy(crp->client);
94                        crp->client = NULL;
95                }
96                if ((hp = gethostbyname(host)) == NULL)
97                        return ((int) RPC_UNKNOWNHOST);
98                timeout.tv_usec = 0;
99                timeout.tv_sec = 5;
100                memset(&server_addr, 0, sizeof(server_addr));
101                memcpy((char *)&server_addr.sin_addr, hp->h_addr, hp->h_length);
102                server_addr.sin_len = sizeof(struct sockaddr_in);
103                server_addr.sin_family = AF_INET;
104                server_addr.sin_port =  0;
105                if ((crp->client = clntudp_create(&server_addr, (u_long)prognum,
106                    (u_long)versnum, timeout, &crp->socket)) == NULL)
107                        return ((int) rpc_createerr.cf_stat);
108                crp->valid = 1;
109                crp->oldprognum = prognum;
110                crp->oldversnum = versnum;
111                (void) strcpy(crp->oldhost, host);
112        }
113        tottimeout.tv_sec = 25;
114        tottimeout.tv_usec = 0;
115        clnt_stat = clnt_call(crp->client, procnum, inproc, in,
116            outproc, out, tottimeout);
117        /*
118         * if call failed, empty cache
119         */
120        if (clnt_stat != RPC_SUCCESS)
121                crp->valid = 0;
122        return ((int) clnt_stat);
123}
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