ypxfrd_getmap.c revision 22989 
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 *	$Id$
33 */
34
35#include <stdlib.h>
36#include <unistd.h>
37#include <string.h>
38#include <sys/types.h>
39#include <time.h>
40#include <rpcsvc/ypxfrd.h>
41#include <rpcsvc/yp.h>
42#include <rpc/rpc.h>
43#include <sys/uio.h>
44#include <sys/fcntl.h>
45#include <sys/stat.h>
46#include <errno.h>
47#include "ypxfr_extern.h"
48
49#ifndef lint
50static const char rcsid[] = "$Id$";
51#endif
52
53int fp = 0;
54
55static bool_t xdr_my_xfr(register XDR *xdrs, xfr *objp)
56{
57	while(1) {
58		if (!xdr_xfr(xdrs, objp))
59			return(FALSE);
60		if (objp->ok == TRUE) {
61			if (write(fp, objp->xfr_u.xfrblock_buf.xfrblock_buf_val,
62			    objp->xfr_u.xfrblock_buf.xfrblock_buf_len) == -1) {
63				yp_error("write failed: %s", strerror(errno));
64				return(FALSE);
65			}
66		}
67		xdr_free(xdr_xfr, (char *)objp);
68		if (objp->ok == FALSE) {
69			switch(objp->xfr_u.xfrstat) {
70			case(XFR_DONE):
71				return(TRUE);
72				break;
73			case(XFR_READ_ERR):
74				yp_error("got read error from rpc.ypxfrd");
75				return(FALSE);
76				break;
77			case(XFR_ACCESS):
78				yp_error("rpc.ypxfrd couldn't access the map");
79				return(FALSE);
80				break;
81			case(XFR_DENIED):
82				yp_error("access to map denied by rpc.ypxfrd");
83				return(FALSE);
84				break;
85			case(XFR_DB_TYPE_MISMATCH):
86				yp_error("client/server DB type mismatch");
87				return(FALSE);
88				break;
89			case(XFR_DB_ENDIAN_MISMATCH):
90				yp_error("client/server byte order mismatch");
91				return(FALSE);
92				break;
93			default:
94				yp_error("got unknown status from rpc.ypxfrd");
95				return(FALSE);
96				break;
97			}
98		}
99	}
100}
101
102#define PERM_SECURE (S_IRUSR|S_IWUSR)
103
104int ypxfrd_get_map(host, map, domain, tmpname)
105	char *host;
106	char *map;
107	char *domain;
108	char *tmpname;
109{
110	CLIENT *clnt;
111	struct ypxfr_mapname req;
112	struct xfr resp;
113	struct timeval timeout = { 0, 25 };
114	int status = 0;
115
116	req.xfrmap = map;
117	req.xfrdomain = domain;
118	req.xfrmap_filename = "";
119	req.xfr_db_type = XFR_DB_BSD_HASH;	/*
120	req.xfr_byte_order = XFR_ENDIAN_ANY;	 * Berkeley DB isn't
121						 * byte-order sensitive.
122						 */
123
124	bzero((char *)&resp, sizeof(resp));
125
126	if ((clnt = clnt_create(host, YPXFRD_FREEBSD_PROG,
127				YPXFRD_FREEBSD_VERS, "tcp")) == NULL) {
128		return(1);
129	}
130
131	if ((fp = open(tmpname, O_RDWR|O_CREAT, PERM_SECURE)) == -1) {
132		clnt_destroy(clnt);
133		yp_error("couldn't open %s: %s", tmpname, strerror(errno));
134		return(1);
135	}
136
137	if (clnt_call(clnt,YPXFRD_GETMAP,xdr_ypxfr_mapname,(char *)&req,
138			xdr_my_xfr, (char *)&resp, timeout) != RPC_SUCCESS) {
139		yp_error("%s", clnt_sperror(clnt,"call to rpc.ypxfrd failed"));
140		status++;
141		unlink(tmpname);
142	}
143
144	clnt_destroy(clnt);
145	close(fp);
146	return(status);
147}
148