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getname.c revision 1.1.1.2 
      1 /*
      2  * Copyright (c) 1980, 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
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     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 #ifndef lint
     35 static char sccsid[] = "@(#)getname.c	8.1 (Berkeley) 6/6/93";
     36 #endif /* not lint */
     37 
     38 #include "rcv.h"
     39 #include <pwd.h>
     40 #include "extern.h"
     41 
     42 /* Getname / getuserid for those with hashed passwd data base). */
     43 
     44 /*
     45  * Search the passwd file for a uid.  Return name through ref parameter
     46  * if found, indicating success with 0 return.  Return -1 on error.
     47  */
     48 char *
     49 getname(uid)
     50 	int uid;
     51 {
     52 	struct passwd *pw;
     53 
     54 	if ((pw = getpwuid(uid)) == NULL)
     55 		return NOSTR;
     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 int
     64 getuserid(name)
     65 	char name[];
     66 {
     67 	struct passwd *pw;
     68 
     69 	if ((pw = getpwnam(name)) == NULL)
     70 		return -1;
     71 	return pw->pw_uid;
     72 }
     73