1 /*
2 * Copyright (c) 2009, Sun Microsystems, Inc.
3 * 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 are met:
7 * - Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * - Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
12 * - Neither the name of Sun Microsystems, Inc. nor the names of its
13 * contributors may be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 /*
30 * netname utility routines
31 * convert from unix names to network names and vice-versa
32 * This module is operating system dependent!
33 * What we define here will work with any unix system that has adopted
34 * the sun NIS domain architecture.
35 */
36
37 #include <wintirpc.h>
38 //#include <sys/param.h>
39 #include <rpc/rpc.h>
40 #include "rpc_com.h"
41 #ifdef YP
42 #include <rpcsvc/yp_prot.h>
43 #include <rpcsvc/ypclnt.h>
44 #endif
45 #include <ctype.h>
46 #include <limits.h>
47 #include <stdio.h>
48 #include <stdlib.h>
49 #include <string.h>
50 //#include <unistd.h>
51
52 #ifndef MAXHOSTNAMELEN
53 #define MAXHOSTNAMELEN 256
54 #endif
55 #ifndef NGROUPS
56 #define NGROUPS 16
57 #endif
58
59 #define TYPE_BIT(type) (sizeof (type) * CHAR_BIT)
60
61 #define TYPE_SIGNED(type) (((type) -1) < 0)
62
63 /*
64 ** 302 / 1000 is log10(2.0) rounded up.
65 ** Subtract one for the sign bit if the type is signed;
66 ** add one for integer division truncation;
67 ** add one more for a minus sign if the type is signed.
68 */
69 #define INT_STRLEN_MAXIMUM(type) \
70 ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
71
72 static char *OPSYS = "unix";
73
74 /*
75 * Figure out my fully qualified network name
76 */
77 int
getnetname(name)78 getnetname(name)
79 char name[MAXNETNAMELEN+1];
80 {
81 #ifdef _WIN32
82 /* I don't understand what these underlying routines are accomplishing??? */
83 return 1;
84 #else
85 uid_t uid;
86
87 uid = geteuid();
88 if (uid == 0) {
89 return (host2netname(name, (char *) NULL, (char *) NULL));
90 } else {
91 return (user2netname(name, uid, (char *) NULL));
92 }
93 #endif
94 }
95
96 #ifndef _WIN32
97 /*
98 * Convert unix cred to network-name
99 */
100 int
user2netname(netname,uid,domain)101 user2netname(netname, uid, domain)
102 char netname[MAXNETNAMELEN + 1];
103 const uid_t uid;
104 const char *domain;
105 {
106 char *dfltdom;
107
108 if (domain == NULL) {
109 if (__rpc_get_default_domain(&dfltdom) != 0) {
110 return (0);
111 }
112 domain = dfltdom;
113 }
114 if (strlen(domain) + 1 + INT_STRLEN_MAXIMUM(u_long) + 1 + strlen(OPSYS) > MAXNETNAMELEN) {
115 return (0);
116 }
117 (void) sprintf(netname, "%s.%ld@%s", OPSYS, (u_long)uid, domain);
118 return (1);
119 }
120
121
122 /*
123 * Convert host to network-name
124 */
125 int
host2netname(netname,host,domain)126 host2netname(netname, host, domain)
127 char netname[MAXNETNAMELEN + 1];
128 const char *host;
129 const char *domain;
130 {
131 char *dfltdom;
132 char hostname[MAXHOSTNAMELEN+1];
133
134 if (domain == NULL) {
135 if (__rpc_get_default_domain(&dfltdom) != 0) {
136 return (0);
137 }
138 domain = dfltdom;
139 }
140 if (host == NULL) {
141 (void) gethostname(hostname, sizeof(hostname));
142 host = hostname;
143 }
144 if (strlen(domain) + 1 + strlen(host) + 1 + strlen(OPSYS) > MAXNETNAMELEN) {
145 return (0);
146 }
147 (void) sprintf(netname, "%s.%s@%s", OPSYS, host, domain);
148 return (1);
149 }
150 #endif
151