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 * $FreeBSD: src/libexec/ypxfr/ypxfrd_getmap.c,v 1.7.2.1 2002/02/15 00:46:54 des Exp $
33 */
34
35 #include <errno.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <time.h>
39 #include <unistd.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 <sys/types.h>
47 #include "ypxfr_extern.h"
48
49 static int fp = 0;
50
51 static bool_t
xdr_my_xfr(register XDR * xdrs,xfr * objp)52 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((xdrproc_t)xdr_xfr, 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 case(XFR_DB_TYPE_MISMATCH):
83 yp_error("client/server DB type mismatch");
84 return(FALSE);
85 break;
86 case(XFR_DB_ENDIAN_MISMATCH):
87 yp_error("client/server byte order mismatch");
88 return(FALSE);
89 break;
90 default:
91 yp_error("got unknown status from rpc.ypxfrd");
92 return(FALSE);
93 break;
94 }
95 }
96 }
97 }
98
99 #define PERM_SECURE (S_IRUSR|S_IWUSR)
100
101 int
ypxfrd_get_map(char * host,char * map,char * domain,char * tmpname)102 ypxfrd_get_map(char *host, char *map, char *domain, char *tmpname)
103 {
104 CLIENT *clnt;
105 struct ypxfr_mapname req;
106 struct xfr resp;
107 struct timeval timeout = { 0, 25 };
108 int status = 0;
109
110 req.xfrmap = map;
111 req.xfrdomain = domain;
112 req.xfrmap_filename = "";
113 req.xfr_db_type = XFR_DB_BSD_HASH; /*
114 req.xfr_byte_order = XFR_ENDIAN_ANY; * Berkeley DB isn't
115 * byte-order sensitive.
116 */
117
118 bzero((char *)&resp, sizeof(resp));
119
120 if ((clnt = clnt_create(host, YPXFRD_FREEBSD_PROG,
121 YPXFRD_FREEBSD_VERS, "tcp")) == NULL) {
122 return(1);
123 }
124
125 if ((fp = open(tmpname, O_RDWR|O_CREAT, PERM_SECURE)) == -1) {
126 clnt_destroy(clnt);
127 yp_error("couldn't open %s: %s", tmpname, strerror(errno));
128 return(1);
129 }
130
131 if (clnt_call(clnt, YPXFRD_GETMAP,
132 (xdrproc_t)xdr_ypxfr_mapname, (char *)&req,
133 (xdrproc_t)xdr_my_xfr, (char *)&resp,
134 timeout) != RPC_SUCCESS) {
135 yp_error("%s", clnt_sperror(clnt,"call to rpc.ypxfrd failed"));
136 status++;
137 unlink(tmpname);
138 }
139
140 clnt_destroy(clnt);
141 close(fp);
142 return(status);
143 }
144