xref: /freebsd/libexec/ypxfr/ypxfr_getmap.c (revision 9a14aa017b21c292740c00ee098195cd46642730)
1 /*
2  * Copyright (c) 1995
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 
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
35 
36 #include <stdio.h>
37 #include <time.h>
38 #include <sys/types.h>
39 #include <rpc/rpc.h>
40 #include <rpc/xdr.h>
41 #include <rpcsvc/yp.h>
42 #include "ypxfr_extern.h"
43 
44 extern bool_t xdr_ypresp_all_seq(XDR *, unsigned long *);
45 
46 int (*ypresp_allfn)();
47 void *ypresp_data;
48 extern DB *specdbp;
49 extern enum ypstat yp_errno;
50 
51 /*
52  * This is largely the same as yp_all() except we do the transfer
53  * from a specific server without the aid of ypbind(8). We need to
54  * be able to specify the source host explicitly since ypxfr may
55  * only transfer maps from the NIS master server for any given domain.
56  * However, if we use the libc version of yp_all(), we could end up
57  * talking to one of the slaves instead. We do need to dig into libc
58  * a little though, since it contains the magic XDR function we need.
59  */
60 int
61 ypxfr_get_map(char *map, char *domain, char *host,
62     int (*callback)(int, char *, int, char *, int, char*))
63 {
64 	CLIENT *clnt;
65 	ypreq_nokey req;
66 	unsigned long status;
67 	struct timeval timeout;
68 
69 	timeout.tv_usec = 0;
70 	timeout.tv_sec = 10;
71 
72 	/* YPPROC_ALL is a TCP service */
73 	if ((clnt = clnt_create(host, YPPROG, YPVERS, "tcp")) == NULL) {
74 		yp_error("%s", clnt_spcreateerror("failed to \
75 create tcp handle"));
76 		yp_errno = (enum ypstat)YPXFR_YPERR;
77 		return(1);
78 	}
79 
80 	req.domain = domain;
81 	req.map = map;
82 	ypresp_allfn = callback;
83 	ypresp_data = NULL;
84 
85 	(void)clnt_call(clnt, YPPROC_ALL, (xdrproc_t)xdr_ypreq_nokey, &req,
86 	    (xdrproc_t)xdr_ypresp_all_seq, &status, timeout);
87 
88 	clnt_destroy(clnt);
89 
90 	if (status == YP_NOMORE)
91 		return(0);
92 
93 	if (status != YP_TRUE) {
94 		yp_errno = (enum ypstat)YPXFR_YPERR;
95 		return(1);
96 	}
97 
98 	return(0);
99 }
100