1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 2000-2001 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 /*
30 * This file contains public API functions for module-level tasks. For the
31 * semantics of these functions, please see the Enterprise DHCP
32 * Architecture Document.
33 *
34 * WARNING: This file is also compiled into the files0 module; if you make
35 * changes to this file which are not appropriate for files0, you
36 * will need to provide files0 with its own implementation.
37 */
38
39 #include <assert.h>
40 #include <stdlib.h>
41 #include <unistd.h>
42 #include <sys/types.h>
43 #include <sys/socket.h>
44 #include <netinet/in.h>
45 #include <libgen.h>
46 #include <errno.h>
47 #include <dhcp_svc_public.h>
48 #include <dhcp_svc_private.h> /* DSVC_SYNCH_CROSSHOST */
49
50 #include "util.h"
51
52 /*
53 * This symbol and its value tell the private layer that it must provide
54 * synchronization guarantees via dsvclockd(1M) before calling our *_dn()
55 * and *_dt() methods. Please see $SRC/lib/libdhcpsvc/private/README.synch
56 */
57 int dsvc_synchtype = DSVC_SYNCH_DSVCD | DSVC_SYNCH_CROSSHOST;
58
59 int
status(const char * location)60 status(const char *location)
61 {
62 if (location != NULL) {
63 if (access(location, F_OK|R_OK) == -1) {
64 if (errno == ENOENT)
65 return (DSVC_NO_LOCATION);
66 return (syserr_to_dsvcerr(errno));
67 }
68 }
69 return (DSVC_SUCCESS);
70 }
71
72 int
version(int * vp)73 version(int *vp)
74 {
75 *vp = DSVC_PUBLIC_VERSION;
76 return (DSVC_SUCCESS);
77 }
78
79 int
mklocation(const char * location)80 mklocation(const char *location)
81 {
82 if (mkdirp(location, 0755) == -1) {
83 switch (errno) {
84 case ENAMETOOLONG:
85 case ENOTDIR:
86 return (DSVC_INVAL);
87
88 case EEXIST:
89 return (DSVC_EXISTS);
90
91 case EROFS:
92 case EPERM:
93 case EACCES:
94 return (DSVC_ACCESS);
95
96 default:
97 return (DSVC_INTERNAL);
98 }
99 }
100
101 return (DSVC_SUCCESS);
102 }
103
104 int
mkloctoken(const char * location,char * token,size_t tokensize)105 mkloctoken(const char *location, char *token, size_t tokensize)
106 {
107 assert(tokensize >= MAXPATHLEN);
108 if (realpath(location, token) == NULL)
109 return (syserr_to_dsvcerr(errno));
110
111 return (DSVC_SUCCESS);
112 }
113