ypxfrd_getmap.c revision 16132 
1/*
2 * Copyright (c) 1995, 1996
3 *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 *	$Id: ypxfrd_getmap.c,v 1.7 1996/06/02 19:51:33 wpaul Exp $
33 */
34
35#include <sys/types.h>
36#include <time.h>
37#include <rpcsvc/ypxfrd.h>
38#include <rpcsvc/yp.h>
39#include <rpc/rpc.h>
40#include <sys/uio.h>
41#include <sys/fcntl.h>
42#include <sys/stat.h>
43#include <errno.h>
44#include "ypxfr_extern.h"
45
46#ifndef lint
47static const char rcsid[] = "$Id: ypxfrd_getmap.c,v 1.7 1996/06/02 19:51:33 wpaul Exp $";
48#endif
49
50int fp = 0;
51
52static bool_t xdr_my_xfr(register XDR *xdrs, xfr *objp)
53{
54	while(1) {
55		if (!xdr_xfr(xdrs, objp))
56			return(FALSE);
57		if (objp->ok == TRUE) {
58			if (write(fp, objp->xfr_u.xfrblock_buf.xfrblock_buf_val,
59			    objp->xfr_u.xfrblock_buf.xfrblock_buf_len) == -1) {
60				yp_error("write failed: %s", strerror(errno));
61				return(FALSE);
62			}
63		}
64		xdr_free(xdr_xfr, (char *)objp);
65		if (objp->ok == FALSE) {
66			switch(objp->xfr_u.xfrstat) {
67			case(XFR_DONE):
68				return(TRUE);
69				break;
70			case(XFR_READ_ERR):
71				yp_error("got read error from rpc.ypxfrd");
72				return(FALSE);
73				break;
74			case(XFR_ACCESS):
75				yp_error("rpc.ypxfrd couldn't access the map");
76				return(FALSE);
77				break;
78			case(XFR_DENIED):
79				yp_error("access to map denied by rpc.ypxfrd");
80				return(FALSE);
81				break;
82			default:
83				yp_error("got unknown status from rpc.ypxfrd");
84				return(FALSE);
85				break;
86			}
87		}
88	}
89}
90
91#define PERM_SECURE (S_IRUSR|S_IWUSR)
92
93int ypxfrd_get_map(host, map, domain, tmpname)
94	char *host;
95	char *map;
96	char *domain;
97	char *tmpname;
98{
99	CLIENT *clnt;
100	struct ypxfr_mapname req;
101	struct xfr resp;
102	struct timeval timeout = { 0, 25 };
103	int status = 0;
104
105	req.xfrmap = map;
106	req.xfrdomain = domain;
107	bzero((char *)&resp, sizeof(resp));
108
109	if ((clnt = clnt_create(host, YPXFRD_FREEBSD_PROG,
110				YPXFRD_FREEBSD_VERS, "tcp")) == NULL) {
111		return(1);
112	}
113
114	if ((fp = open(tmpname, O_RDWR|O_CREAT, PERM_SECURE)) == -1) {
115		clnt_destroy(clnt);
116		yp_error("couldn't open %s: %s", tmpname, strerror(errno));
117		return(1);
118	}
119
120	if (clnt_call(clnt,YPXFRD_GETMAP,xdr_ypxfr_mapname,(char *)&req,
121			xdr_my_xfr, (char *)&resp, timeout) != RPC_SUCCESS) {
122		yp_error("%s", clnt_sperror(clnt,"call to rpc.ypxfrd failed"));
123		status++;
124		unlink(tmpname);
125	}
126
127	clnt_destroy(clnt);
128	close(fp);
129	return(status);
130}
131