getname.c revision 77274
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#if 0 36static char sccsid[] = "@(#)getname.c 8.1 (Berkeley) 6/6/93"; 37#endif 38static const char rcsid[] = 39 "$FreeBSD: head/usr.bin/mail/getname.c 77274 2001-05-27 20:26:22Z mikeh $"; 40#endif /* not lint */ 41 42#include "rcv.h" 43#include <pwd.h> 44#include "extern.h" 45 46/* Getname / getuserid for those with hashed passwd data base). */ 47 48/* 49 * Search the passwd file for a uid. Return name on success, NULL on failure. 50 */ 51char * 52getname(uid) 53 int uid; 54{ 55 struct passwd *pw; 56 57 if ((pw = getpwuid(uid)) == NULL) 58 return (NULL); 59 return (pw->pw_name); 60} 61 62/* 63 * Convert the passed name to a user id and return it. Return -1 64 * on error. 65 */ 66int 67getuserid(name) 68 char name[]; 69{ 70 struct passwd *pw; 71 72 if ((pw = getpwnam(name)) == NULL) 73 return (-1); 74 return (pw->pw_uid); 75} 76