1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * University Copyright- Copyright (c) 1982, 1986, 1988 28 * The Regents of the University of California 29 * All Rights Reserved 30 * 31 * University Acknowledgment- Portions of this document are derived from 32 * software developed by the University of California, Berkeley, and its 33 * contributors. 34 */ 35 36 #pragma ident "%Z%%M% %I% %E% SMI" 37 38 /* 39 * mailx -- a modified version of a University of California at Berkeley 40 * mail program 41 */ 42 43 #include "rcv.h" 44 #include <pwd.h> 45 #ifdef preSVr4 46 extern struct passwd *getpwnam(); 47 extern struct passwd *getpwuid(); 48 #endif 49 50 /* 51 * Search the passwd file for a uid. Return name through ref parameter 52 * if found, indicating success with 0 return. Return -1 on error. 53 * If -1 is passed as the user id, close the passwd file. 54 */ 55 56 int 57 getname(uid_t uid, char namebuf[]) 58 { 59 struct passwd *pw; 60 61 if (uid == (uid_t)-1) { 62 endpwent(); 63 return(0); 64 } 65 setpwent(); 66 pw = getpwuid(uid); 67 if (pw) { 68 strcpy(namebuf, pw->pw_name); 69 return(0); 70 } 71 return(-1); 72 } 73 74 /* 75 * Convert the passed name to a user id and return it. Return -1 76 * on error. Iff the name passed is 0, close the passwd file. 77 */ 78 79 uid_t 80 getuserid(char name[]) 81 { 82 struct passwd *pw; 83 84 if (name == 0) { 85 endpwent(); 86 return(0); 87 } 88 setpwent(); 89 pw = getpwnam(name); 90 return pw ? pw->pw_uid : (uid_t)-1; 91 } 92