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