1153188Spjd/* 2153188Spjd * Copyright (c) 1995, 1996 3153188Spjd * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 4153188Spjd * 5153188Spjd * Redistribution and use in source and binary forms, with or without 6153188Spjd * modification, are permitted provided that the following conditions 7153188Spjd * are met: 8153188Spjd * 1. Redistributions of source code must retain the above copyright 9153188Spjd * notice, this list of conditions and the following disclaimer. 10153188Spjd * 2. Redistributions in binary form must reproduce the above copyright 11153188Spjd * notice, this list of conditions and the following disclaimer in the 12153188Spjd * documentation and/or other materials provided with the distribution. 13153188Spjd * 3. All advertising materials mentioning features or use of this software 14153188Spjd * must display the following acknowledgement: 15153188Spjd * This product includes software developed by Bill Paul. 16153188Spjd * 4. Neither the name of the author nor the names of any co-contributors 17153188Spjd * may be used to endorse or promote products derived from this software 18153188Spjd * without specific prior written permission. 19153188Spjd * 20153188Spjd * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21153188Spjd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22153188Spjd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23153188Spjd * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 24153188Spjd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25153188Spjd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26153188Spjd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27153188Spjd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28153188Spjd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29153188Spjd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30153188Spjd * SUCH DAMAGE. 31153188Spjd */ 32153188Spjd 33153188Spjd#include <sys/cdefs.h> 34153188Spjd__FBSDID("$FreeBSD$"); 35153188Spjd 36153188Spjd#include "ypxfrd.h" 37153188Spjd 38153188Spjd#include <stdio.h> 39153188Spjd#include <stdlib.h> 40153188Spjd#include <unistd.h> 41153188Spjd#include <string.h> 42153188Spjd#include <errno.h> 43153188Spjd#include <sys/types.h> 44153188Spjd#include <sys/param.h> 45153188Spjd#include <sys/uio.h> 46153188Spjd#include <sys/fcntl.h> 47153188Spjd#include <machine/endian.h> 48153188Spjd#include "ypxfrd_extern.h" 49153188Spjd 50153188Spjdint forked = 0; 51153188Spjdint children = 0; 52153188Spjdint fp = 0; 53153188Spjd 54153188Spjdstatic bool_t 55153188Spjdxdr_my_xfr(register XDR *xdrs, xfr *objp) 56153188Spjd{ 57153188Spjd unsigned char buf[XFRBLOCKSIZE]; 58153188Spjd 59153188Spjd while (1) { 60 if ((objp->xfr_u.xfrblock_buf.xfrblock_buf_len = 61 read(fp, &buf, XFRBLOCKSIZE)) != -1) { 62 objp->ok = TRUE; 63 objp->xfr_u.xfrblock_buf.xfrblock_buf_val = (char *)&buf; 64 } else { 65 objp->ok = FALSE; 66 objp->xfr_u.xfrstat = XFR_READ_ERR; 67 yp_error("read error: %s", strerror(errno)); 68 } 69 70 /* Serialize */ 71 if (!xdr_xfr(xdrs, objp)) 72 return(FALSE); 73 if (objp->ok == FALSE) 74 return(TRUE); 75 if (objp->xfr_u.xfrblock_buf.xfrblock_buf_len < XFRBLOCKSIZE) { 76 objp->ok = FALSE; 77 objp->xfr_u.xfrstat = XFR_DONE; 78 if (!xdr_xfr(xdrs, objp)) 79 return(FALSE); 80 return(TRUE); 81 } 82 } 83} 84 85struct xfr * 86ypxfrd_getmap_1_svc(ypxfr_mapname *argp, struct svc_req *rqstp) 87{ 88 static struct xfr result; 89 char buf[MAXPATHLEN]; 90 91 result.ok = FALSE; 92 result.xfr_u.xfrstat = XFR_DENIED; 93 94 if (yp_validdomain(argp->xfrdomain)) { 95 return(&result); 96 } 97 98 if (yp_access(argp->xfrmap, (struct svc_req *)rqstp)) { 99 return(&result); 100 } 101 102 snprintf (buf, sizeof(buf), "%s/%s/%s", yp_dir, argp->xfrdomain, 103 argp->xfrmap); 104 if (access(buf, R_OK) == -1) { 105 result.xfr_u.xfrstat = XFR_ACCESS; 106 return(&result); 107 } 108 109 if (argp->xfr_db_type != XFR_DB_BSD_HASH && 110 argp->xfr_db_type != XFR_DB_ANY) { 111 result.xfr_u.xfrstat = XFR_DB_TYPE_MISMATCH; 112 return(&result); 113 } 114 115#if BYTE_ORDER == LITTLE_ENDIAN 116 if (argp->xfr_byte_order == XFR_ENDIAN_BIG) { 117#else 118 if (argp->xfr_byte_order == XFR_ENDIAN_LITTLE) { 119#endif 120 result.xfr_u.xfrstat = XFR_DB_ENDIAN_MISMATCH; 121 return(&result); 122 } 123 124#ifndef DEBUG 125 if (children < MAX_CHILDREN && fork()) { 126 children++; 127 forked = 0; 128 return (NULL); 129 } else { 130 forked++; 131 } 132#endif 133 if ((fp = open(buf, O_RDONLY)) == -1) { 134 result.xfr_u.xfrstat = XFR_READ_ERR; 135 return(&result); 136 } 137 138 /* Start sending the file. */ 139 140 svc_sendreply(rqstp->rq_xprt, (xdrproc_t)xdr_my_xfr, &result); 141 142 close(fp); 143 144 return (NULL); 145} 146