/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (c) 1995, 1996
* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include "ypxfrd.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/uio.h>
#include <sys/fcntl.h>
#include <machine/endian.h>
#include "ypxfrd_extern.h"
int forked = 0;
int children = 0;
int fp = 0;
static bool_t
xdr_my_xfr(register XDR *xdrs, xfr *objp)
{
unsigned char buf[XFRBLOCKSIZE];
while (1) {
if ((objp->xfr_u.xfrblock_buf.xfrblock_buf_len =
read(fp, &buf, XFRBLOCKSIZE)) != -1) {
objp->ok = TRUE;
objp->xfr_u.xfrblock_buf.xfrblock_buf_val = (char *)&buf;
} else {
objp->ok = FALSE;
objp->xfr_u.xfrstat = XFR_READ_ERR;
yp_error("read error: %s", strerror(errno));
}
/* Serialize */
if (!xdr_xfr(xdrs, objp))
return(FALSE);
if (objp->ok == FALSE)
return(TRUE);
if (objp->xfr_u.xfrblock_buf.xfrblock_buf_len < XFRBLOCKSIZE) {
objp->ok = FALSE;
objp->xfr_u.xfrstat = XFR_DONE;
if (!xdr_xfr(xdrs, objp))
return(FALSE);
return(TRUE);
}
}
}
struct xfr *
ypxfrd_getmap_1_svc(ypxfr_mapname *argp, struct svc_req *rqstp)
{
static struct xfr result;
char buf[MAXPATHLEN];
result.ok = FALSE;
result.xfr_u.xfrstat = XFR_DENIED;
if (yp_validdomain(argp->xfrdomain)) {
return(&result);
}
if (yp_access(argp->xfrmap, (struct svc_req *)rqstp)) {
return(&result);
}
snprintf (buf, sizeof(buf), "%s/%s/%s", yp_dir, argp->xfrdomain,
argp->xfrmap);
if (access(buf, R_OK) == -1) {
result.xfr_u.xfrstat = XFR_ACCESS;
return(&result);
}
if (argp->xfr_db_type != XFR_DB_BSD_HASH &&
argp->xfr_db_type != XFR_DB_ANY) {
result.xfr_u.xfrstat = XFR_DB_TYPE_MISMATCH;
return(&result);
}
#if BYTE_ORDER == LITTLE_ENDIAN
if (argp->xfr_byte_order == XFR_ENDIAN_BIG) {
#else
if (argp->xfr_byte_order == XFR_ENDIAN_LITTLE) {
#endif
result.xfr_u.xfrstat = XFR_DB_ENDIAN_MISMATCH;
return(&result);
}
#ifndef DEBUG
if (children < MAX_CHILDREN && fork()) {
children++;
forked = 0;
return (NULL);
} else {
forked++;
}
#endif
if ((fp = open(buf, O_RDONLY)) == -1) {
result.xfr_u.xfrstat = XFR_READ_ERR;
return(&result);
}
/* Start sending the file. */
svc_sendreply(rqstp->rq_xprt, (xdrproc_t)xdr_my_xfr, &result);
close(fp);
return (NULL);
}
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