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      1 /*	$NetBSD: getname.c,v 1.11 2006/11/28 18:45:32 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1980, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 #if 0
     35 static char sccsid[] = "@(#)getname.c	8.1 (Berkeley) 6/6/93";
     36 #else
     37 __RCSID("$NetBSD: getname.c,v 1.11 2006/11/28 18:45:32 christos Exp $");
     38 #endif
     39 #endif /* not lint */
     40 
     41 #include "rcv.h"
     42 #include "extern.h"
     43 
     44 /* Getname / getuserid for those with hashed passwd data base). */
     45 
     46 /*
     47  * Search the passwd file for a uid.  Return name on success, NULL on failure
     48  */
     49 PUBLIC const char *
     50 getname(uid_t uid)
     51 {
     52 	struct passwd *pw;
     53 
     54 	if ((pw = getpwuid(uid)) == NULL)
     55 		return NULL;
     56 	return pw->pw_name;
     57 }
     58 
     59 /*
     60  * Convert the passed name to a user id and return it.  Return -1
     61  * on error.
     62  */
     63 PUBLIC int
     64 getuserid(char name[])
     65 {
     66 	struct passwd *pw;
     67 
     68 	if ((pw = getpwnam(name)) == NULL)
     69 		return -1;
     70 	return pw->pw_uid;
     71 }
     72