2 * Copyright (c) 2009, Sun Microsystems, Inc.
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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.
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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
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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30 * netname utility routines convert from unix names to network names and
31 * vice-versa This module is operating system dependent! What we define here
32 * will work with any unix system that has adopted the sun NIS domain
37 #include <sys/param.h>
41 #include <rpcsvc/yp_prot.h>
42 #include <rpcsvc/ypclnt.h>
52 static char *OPSYS
= "unix";
53 static char *NETID
= "netid.byname";
54 static char *NETIDFILE
= "/etc/netid";
56 static int getnetid( char *, char * );
57 static int _getgroups( char *, gid_t
* );
64 * Convert network-name into unix credential
67 netname2user(netname
, uidp
, gidp
, gidlenp
, gidlist
)
68 char netname
[MAXNETNAMELEN
+ 1];
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
);
98 for (gidlen
= 0; gidlen
< NGROUPS
; gidlen
++) {
99 p
= strsep(&res
, "\n,");
102 gidlist
[gidlen
] = (gid_t
) atol(p
);
108 val1
= strchr(netname
, '.');
111 if (strncmp(netname
, OPSYS
, (val1
-netname
)))
114 val2
= strchr(val1
, '@');
117 vallen
= val2
- val1
;
118 if (vallen
> (1024 - 1))
120 (void) strncpy(val
, val1
, 1024);
123 err
= __rpc_get_default_domain(&domain
); /* change to rpc */
127 if (strcmp(val2
+ 1, domain
))
128 return (0); /* wrong domain */
130 if (sscanf(val
, "%ld", &luid
) != 1)
134 /* use initgroups method */
140 *gidlenp
= _getgroups(pwd
->pw_name
, gidlist
);
149 _getgroups(uname
, groups
)
151 gid_t groups
[NGROUPS
];
160 while ((grp
= getgrent())) {
161 for (i
= 0; grp
->gr_mem
[i
]; i
++)
162 if (!strcmp(grp
->gr_mem
[i
], uname
)) {
163 if (ngroups
== NGROUPS
) {
166 "initgroups: %s is in too many groups\n", uname
);
170 /* filter out duplicate group entries */
172 for (j
= 0; j
< ngroups
; j
++)
173 if (groups
[j
] == grp
->gr_gid
) {
178 groups
[ngroups
++] = grp
->gr_gid
;
187 * Convert network-name to hostname
190 netname2host(netname
, hostname
, hostlen
)
191 char netname
[MAXNETNAMELEN
+ 1];
202 if (getnetid(netname
, valbuf
)) {
204 if ((*val
== '0') && (val
[1] == ':')) {
205 (void) strncpy(hostname
, val
+ 2, hostlen
);
209 val
= strchr(netname
, '.');
212 if (strncmp(netname
, OPSYS
, (val
- netname
)))
215 val2
= strchr(val
, '@');
219 if (vallen
> (hostlen
- 1))
220 vallen
= hostlen
- 1;
221 (void) strncpy(hostname
, val
, vallen
);
222 hostname
[vallen
] = 0;
224 err
= __rpc_get_default_domain(&domain
); /* change to rpc */
228 if (strcmp(val2
+ 1, domain
))
229 return (0); /* wrong domain */
235 * reads the file /etc/netid looking for a + to optionally go to the
236 * network information service.
242 char buf
[1024]; /* big enough */
254 fd
= fopen(NETIDFILE
, "r");
265 return (0); /* getnetidyp brings us here */
266 res
= fgets(buf
, sizeof(buf
), fd
);
273 else if (res
[0] == '+') {
276 err
= yp_get_default_domain(&domain
);
281 err
= yp_match(domain
, NETID
, key
,
282 strlen(key
), &lookup
, &len
);
285 fprintf(stderr
, "match failed error %d\n", err
);
298 "Bad record in %s '+' -- NIS not supported in this library copy\n",
304 mkey
= strsep(&res
, "\t ");
307 "Bad record in %s -- %s", NETIDFILE
, buf
);
311 mval
= strsep(&res
, " \t#\n");
312 } while (mval
!= NULL
&& !*mval
);
315 "Bad record in %s val problem - %s", NETIDFILE
, buf
);
318 if (strcmp(mkey
, key
) == 0) {