2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user or with the express written consent of
8 * Sun Microsystems, Inc.
10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14 * Sun RPC is provided with no support and without any obligation on the
15 * part of Sun Microsystems, Inc. to assist in its use, correction,
16 * modification or enhancement.
18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20 * OR ANY PART THEREOF.
22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
23 * or profits or other special, indirect and consequential damages, even if
24 * Sun has been advised of the possibility of such damages.
26 * Sun Microsystems, Inc.
28 * Mountain View, California 94043
31 #if defined(LIBC_SCCS) && !defined(lint)
32 static char sccsid[] = "@(#)netnamer.c 1.13 91/03/11 Copyr 1986 Sun Micro";
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
38 * netname utility routines convert from unix names to network names and
39 * vice-versa This module is operating system dependent! What we define here
40 * will work with any unix system that has adopted the sun NIS domain
43 #include "namespace.h"
44 #include <sys/param.h>
46 #include <rpc/rpc_com.h>
48 #include <rpcsvc/yp_prot.h>
49 #include <rpcsvc/ypclnt.h>
58 #include "un-namespace.h"
60 static char *OPSYS = "unix";
62 static char *NETID = "netid.byname";
64 static char *NETIDFILE = "/etc/netid";
66 static int getnetid( char *, char * );
67 static int _getgroups( char *, gid_t * );
74 * Convert network-name into unix credential
77 netname2user(netname, uidp, gidp, gidlenp, gidlist)
78 char netname[MAXNETNAMELEN + 1];
95 if (getnetid(netname, val)) {
98 p = strsep(&res, ":");
101 *uidp = (uid_t) atol(p);
102 p = strsep(&res, "\n,");
106 *gidp = (gid_t) atol(p);
107 for (gidlen = 0; gidlen < NGROUPS; gidlen++) {
108 p = strsep(&res, "\n,");
111 gidlist[gidlen] = (gid_t) atol(p);
117 val1 = strchr(netname, '.');
120 if (strncmp(netname, OPSYS, (val1-netname)))
123 val2 = strchr(val1, '@');
126 vallen = val2 - val1;
127 if (vallen > (1024 - 1))
129 (void) strncpy(val, val1, 1024);
132 err = __rpc_get_default_domain(&domain); /* change to rpc */
136 if (strcmp(val2 + 1, domain))
137 return (0); /* wrong domain */
139 if (sscanf(val, "%ld", &luid) != 1)
143 /* use initgroups method */
149 *gidlenp = _getgroups(pwd->pw_name, gidlist);
158 _getgroups(uname, groups)
160 gid_t groups[NGROUPS];
169 while ((grp = getgrent())) {
170 for (i = 0; grp->gr_mem[i]; i++)
171 if (!strcmp(grp->gr_mem[i], uname)) {
172 if (ngroups == NGROUPS) {
175 "initgroups: %s is in too many groups\n", uname);
179 /* filter out duplicate group entries */
181 for (j = 0; j < ngroups; j++)
182 if (groups[j] == grp->gr_gid) {
187 groups[ngroups++] = grp->gr_gid;
196 * Convert network-name to hostname
199 netname2host(netname, hostname, hostlen)
200 char netname[MAXNETNAMELEN + 1];
211 if (getnetid(netname, valbuf)) {
213 if ((*val == '0') && (val[1] == ':')) {
214 (void) strncpy(hostname, val + 2, hostlen);
218 val = strchr(netname, '.');
221 if (strncmp(netname, OPSYS, (val - netname)))
224 val2 = strchr(val, '@');
228 if (vallen > (hostlen - 1))
229 vallen = hostlen - 1;
230 (void) strncpy(hostname, val, vallen);
231 hostname[vallen] = 0;
233 err = __rpc_get_default_domain(&domain); /* change to rpc */
237 if (strcmp(val2 + 1, domain))
238 return (0); /* wrong domain */
244 * reads the file /etc/netid looking for a + to optionally go to the
245 * network information service.
251 char buf[1024]; /* big enough */
263 fd = fopen(NETIDFILE, "r");
274 return (0); /* getnetidyp brings us here */
275 res = fgets(buf, sizeof(buf), fd);
282 else if (res[0] == '+') {
285 err = yp_get_default_domain(&domain);
290 err = yp_match(domain, NETID, key,
291 strlen(key), &lookup, &len);
294 fprintf(stderr, "match failed error %d\n", err);
307 "Bad record in %s '+' -- NIS not supported in this library copy\n",
313 mkey = strsep(&res, "\t ");
316 "Bad record in %s -- %s", NETIDFILE, buf);
320 mval = strsep(&res, " \t#\n");
321 } while (mval != NULL && !*mval);
324 "Bad record in %s val problem - %s", NETIDFILE, buf);
327 if (strcmp(mkey, key) == 0) {