kernel - TMPFS - Bug fixing pass
[dragonfly.git] / usr.sbin / rpc.ypxfrd / ypxfrd_server.c
blobc74752bc7d439c1a9a66766c624805b3826f224d
1 /*
2 * Copyright (c) 1995, 1996
3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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.
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.
32 * $FreeBSD: src/usr.sbin/rpc.ypxfrd/ypxfrd_server.c,v 1.8.2.1 2002/02/15 00:46:58 des Exp $
33 * $DragonFly: src/usr.sbin/rpc.ypxfrd/ypxfrd_server.c,v 1.3 2004/05/20 19:24:43 cpressey Exp $
36 #include "ypxfrd.h"
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <unistd.h>
41 #include <string.h>
42 #include <errno.h>
43 #include <sys/types.h>
44 #include <sys/param.h>
45 #include <sys/uio.h>
46 #include <sys/fcntl.h>
47 #include <machine/endian.h>
48 #include "ypxfrd_extern.h"
50 int forked = 0;
51 int children = 0;
52 int fp = 0;
54 static bool_t
55 xdr_my_xfr(XDR *xdrs, xfr *objp)
57 unsigned char buf[XFRBLOCKSIZE];
59 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));
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);
85 struct xfr *
86 ypxfrd_getmap_1_svc(ypxfr_mapname *argp, struct svc_req *rqstp)
88 static struct xfr result;
89 char buf[MAXPATHLEN];
91 result.ok = FALSE;
92 result.xfr_u.xfrstat = XFR_DENIED;
94 if (yp_validdomain(argp->xfrdomain)) {
95 return(&result);
98 if (yp_access(argp->xfrmap, (struct svc_req *)rqstp)) {
99 return(&result);
102 snprintf (buf, sizeof(buf), "%s/%s/%s", yp_dir, argp->xfrdomain,
103 argp->xfrmap);
104 if (access((char *)&buf, R_OK) == -1) {
105 result.xfr_u.xfrstat = XFR_ACCESS;
106 return(&result);
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);
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);
124 #ifndef DEBUG
125 if (children < MAX_CHILDREN && fork()) {
126 children++;
127 forked = 0;
128 return (NULL);
129 } else {
130 forked++;
132 #endif
133 if ((fp = open((char *)&buf, O_RDONLY)) == -1) {
134 result.xfr_u.xfrstat = XFR_READ_ERR;
135 return(&result);
138 /* Start sending the file. */
140 svc_sendreply(rqstp->rq_xprt, (xdrproc_t)xdr_my_xfr, &result);
142 close(fp);
144 return (NULL);