2 * Copyright (c) 2009, Sun Microsystems, Inc.
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.
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.
29 #if defined(LIBC_SCCS) && !defined(lint)
30 static char sccsid[] = "@(#)netnamer.c 1.13 91/03/11 Copyr 1986 Sun Micro";
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
36 * netname utility routines convert from unix names to network names and
37 * vice-versa This module is operating system dependent! What we define here
38 * will work with any unix system that has adopted the sun NIS domain
41 #include "namespace.h"
42 #include <sys/param.h>
44 #include <rpc/rpc_com.h>
46 #include <rpcsvc/yp_prot.h>
47 #include <rpcsvc/ypclnt.h>
56 #include "un-namespace.h"
58 static char *OPSYS = "unix";
60 static char *NETID = "netid.byname";
62 static char *NETIDFILE = "/etc/netid";
64 static int getnetid( char *, char * );
65 static int _getgroups( char *, gid_t * );
68 * Convert network-name into unix credential
71 netname2user(char netname[MAXNETNAMELEN + 1], uid_t *uidp, gid_t *gidp,
72 int *gidlenp, gid_t *gidlist)
85 if (getnetid(netname, val)) {
88 p = strsep(&res, ":");
91 *uidp = (uid_t) atol(p);
92 p = strsep(&res, "\n,");
96 *gidp = (gid_t) atol(p);
97 for (gidlen = 0; gidlen < NGRPS; gidlen++) {
98 p = strsep(&res, "\n,");
101 gidlist[gidlen] = (gid_t) atol(p);
107 val1 = strchr(netname, '.');
110 if (strncmp(netname, OPSYS, (val1-netname)))
113 val2 = strchr(val1, '@');
116 vallen = val2 - val1;
117 if (vallen > (1024 - 1))
119 (void) strncpy(val, val1, 1024);
122 err = __rpc_get_default_domain(&domain); /* change to rpc */
126 if (strcmp(val2 + 1, domain))
127 return (0); /* wrong domain */
129 if (sscanf(val, "%ld", &luid) != 1)
133 /* use initgroups method */
139 *gidlenp = _getgroups(pwd->pw_name, gidlist);
148 _getgroups(char *uname, gid_t groups[NGRPS])
157 while ((grp = getgrent())) {
158 for (i = 0; grp->gr_mem[i]; i++)
159 if (!strcmp(grp->gr_mem[i], uname)) {
160 if (ngroups == NGRPS) {
163 "initgroups: %s is in too many groups\n", uname);
167 /* filter out duplicate group entries */
169 for (j = 0; j < ngroups; j++)
170 if (groups[j] == grp->gr_gid) {
175 groups[ngroups++] = grp->gr_gid;
184 * Convert network-name to hostname
187 netname2host(char netname[MAXNETNAMELEN + 1], char *hostname, int hostlen)
196 if (getnetid(netname, valbuf)) {
198 if ((*val == '0') && (val[1] == ':')) {
199 (void) strncpy(hostname, val + 2, hostlen);
203 val = strchr(netname, '.');
206 if (strncmp(netname, OPSYS, (val - netname)))
209 val2 = strchr(val, '@');
213 if (vallen > (hostlen - 1))
214 vallen = hostlen - 1;
215 (void) strncpy(hostname, val, vallen);
216 hostname[vallen] = 0;
218 err = __rpc_get_default_domain(&domain); /* change to rpc */
222 if (strcmp(val2 + 1, domain))
223 return (0); /* wrong domain */
229 * reads the file /etc/netid looking for a + to optionally go to the
230 * network information service.
233 getnetid(char *key, char *ret)
235 char buf[1024]; /* big enough */
250 fd = fopen(NETIDFILE, "r");
260 res = fgets(buf, sizeof(buf), fd);
267 else if (res[0] == '+') {
270 err = yp_get_default_domain(&domain);
275 err = yp_match(domain, NETID, key,
276 strlen(key), &lookup, &len);
279 fprintf(stderr, "match failed error %d\n", err);
291 "Bad record in %s '+' -- NIS not supported in this library copy\n",
297 mkey = strsep(&res, "\t ");
300 "Bad record in %s -- %s", NETIDFILE, buf);
304 mval = strsep(&res, " \t#\n");
305 } while (mval != NULL && !*mval);
308 "Bad record in %s val problem - %s", NETIDFILE, buf);
311 if (strcmp(mkey, key) == 0) {