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 * @(#)getname.c 8.1 (Berkeley) 6/6/93 34 * $FreeBSD: src/usr.bin/mail/getname.c,v 1.1.1.1.14.3 2003/01/06 05:46:03 mikeh Exp $ 35 * $DragonFly: src/usr.bin/mail/getname.c,v 1.3 2003/10/04 20:36:48 hmp Exp $ 36 */ 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 on success, NULL on failure. 46 */ 47 char * 48 getname(int uid) 49 { 50 struct passwd *pw; 51 52 if ((pw = getpwuid(uid)) == NULL) 53 return (NULL); 54 return (pw->pw_name); 55 } 56 57 /* 58 * Convert the passed name to a user id and return it. Return -1 59 * on error. 60 */ 61 int 62 getuserid(char *name) 63 { 64 struct passwd *pw; 65 66 if ((pw = getpwnam(name)) == NULL) 67 return (-1); 68 return (pw->pw_uid); 69 } 70