1/*
2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. 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
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#if defined(LIBC_SCCS) && !defined(lint)
35static char sccsid[] = "@(#)getpwent.c 8.2 (Berkeley) 4/27/95";
36#endif /* LIBC_SCCS and not lint */
37
38#include <stdio.h>
39#include <sys/param.h>
40#include <fcntl.h>
41#include <db.h>
42#include <syslog.h>
43#include <pwd.h>

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48#include <string.h>
49#include <limits.h>
50#include <grp.h>
51
52extern void setnetgrent __P(( char * ));
53extern int getnetgrent __P(( char **, char **, char ** ));
54extern int innetgr __P(( const char *, const char *, const char *, const char * ));
55
56/*
57 * The lookup techniques and data extraction code here must be kept
58 * in sync with that in `pwd_mkdb'.
59 */
60
61static struct passwd _pw_passwd; /* password structure */
62static DB *_pw_db; /* password database */
63static int _pw_keynum; /* key counter */
64static int _pw_stayopen; /* keep fd's open */
65#ifdef YP
66#include <rpc/rpc.h>
67#include <rpcsvc/yp_prot.h>
68#include <rpcsvc/ypclnt.h>

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162 if (rval && (_pw_passwd.pw_name[0] == '+'||
163 _pw_passwd.pw_name[0] == '-')) rval = 0;
164
165 endpwent();
166 return(rval ? &_pw_passwd : (struct passwd *)NULL);
167}
168
169struct passwd *
170getpwuid(uid)
171 uid_t uid;
172{
173 DBT key;
174 int keyuid, rval;
175 char bf[sizeof(keyuid) + 1];
176
177 if (!_pw_db && !__initdb())
178 return((struct passwd *)NULL);
179

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291 DBT data;
292
293 if ((_pw_db->get)(_pw_db, key, &data, 0))
294 return(0);
295 p = (char *)data.data;
296 if (data.size > max && !(line = realloc(line, max += 1024)))
297 return(0);
298
299 /* THIS CODE MUST MATCH THAT IN pwd_mkdb. */
300 t = line;
301#define EXPAND(e) e = t; while ( (*t++ = *p++) );
302#define SCALAR(v) memmove(&(v), p, sizeof v); p += sizeof v
303 EXPAND(_pw_passwd.pw_name);
304 EXPAND(_pw_passwd.pw_passwd);
305 SCALAR(_pw_passwd.pw_uid);
306 SCALAR(_pw_passwd.pw_gid);
307 SCALAR(_pw_passwd.pw_change);
308 EXPAND(_pw_passwd.pw_class);
309 EXPAND(_pw_passwd.pw_gecos);
310 EXPAND(_pw_passwd.pw_dir);
311 EXPAND(_pw_passwd.pw_shell);
312 SCALAR(_pw_passwd.pw_expire);
313 bcopy(p, (char *)&_pw_passwd.pw_fields, sizeof _pw_passwd.pw_fields);
314 p += sizeof _pw_passwd.pw_fields;
315 return(1);
316}
317
318#ifdef YP
319
320/*

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