10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*1914Scasper * Common Development and Distribution License (the "License"). 6*1914Scasper * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 210Sstevel@tonic-gate /* 22*1914Scasper * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 230Sstevel@tonic-gate * Use is subject to license terms. 240Sstevel@tonic-gate */ 250Sstevel@tonic-gate 260Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 270Sstevel@tonic-gate 280Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 290Sstevel@tonic-gate /* All Rights Reserved */ 300Sstevel@tonic-gate 310Sstevel@tonic-gate 320Sstevel@tonic-gate /* 3.0 SID # 1.2 */ 330Sstevel@tonic-gate #pragma weak getpw = _getpw 340Sstevel@tonic-gate 350Sstevel@tonic-gate #include "synonyms.h" 360Sstevel@tonic-gate #include "file64.h" 370Sstevel@tonic-gate #include <sys/types.h> 380Sstevel@tonic-gate #include <mtlib.h> 390Sstevel@tonic-gate #include <ctype.h> 400Sstevel@tonic-gate #include <thread.h> 410Sstevel@tonic-gate #include <synch.h> 420Sstevel@tonic-gate #include <stdio.h> 430Sstevel@tonic-gate #include "stdiom.h" 440Sstevel@tonic-gate #include "libc.h" 450Sstevel@tonic-gate 460Sstevel@tonic-gate static FILE *pwf; 470Sstevel@tonic-gate static mutex_t _pwlock = DEFAULTMUTEX; 480Sstevel@tonic-gate const char *PASSWD = "/etc/passwd"; 490Sstevel@tonic-gate 500Sstevel@tonic-gate int 510Sstevel@tonic-gate getpw(uid_t uid, char buf[]) 520Sstevel@tonic-gate { 530Sstevel@tonic-gate int n, c; 540Sstevel@tonic-gate char *bp; 550Sstevel@tonic-gate FILE *fp; 560Sstevel@tonic-gate rmutex_t *lk; 570Sstevel@tonic-gate 580Sstevel@tonic-gate if (pwf == NULL) { 59*1914Scasper fp = fopen(PASSWD, "rF"); 600Sstevel@tonic-gate lmutex_lock(&_pwlock); 610Sstevel@tonic-gate if (pwf == NULL) { 620Sstevel@tonic-gate if ((pwf = fp) == NULL) { 630Sstevel@tonic-gate lmutex_unlock(&_pwlock); 640Sstevel@tonic-gate return (1); 650Sstevel@tonic-gate } 660Sstevel@tonic-gate fp = NULL; 670Sstevel@tonic-gate } 680Sstevel@tonic-gate lmutex_unlock(&_pwlock); 690Sstevel@tonic-gate if (fp != NULL) /* someone beat us to it */ 700Sstevel@tonic-gate (void) fclose(fp); 710Sstevel@tonic-gate } 720Sstevel@tonic-gate 730Sstevel@tonic-gate FLOCKFILE(lk, pwf); 740Sstevel@tonic-gate _rewind_unlocked(pwf); 750Sstevel@tonic-gate 760Sstevel@tonic-gate for (;;) { 770Sstevel@tonic-gate bp = buf; 780Sstevel@tonic-gate while ((c = GETC(pwf)) != '\n') { 790Sstevel@tonic-gate if (c == EOF) { 800Sstevel@tonic-gate FUNLOCKFILE(lk); 810Sstevel@tonic-gate return (1); 820Sstevel@tonic-gate } 830Sstevel@tonic-gate *bp++ = (char)c; 840Sstevel@tonic-gate } 850Sstevel@tonic-gate *bp = '\0'; 860Sstevel@tonic-gate bp = buf; 870Sstevel@tonic-gate n = 3; 880Sstevel@tonic-gate while (--n) 890Sstevel@tonic-gate while ((c = *bp++) != ':') 900Sstevel@tonic-gate if (c == '\n') { 910Sstevel@tonic-gate FUNLOCKFILE(lk); 920Sstevel@tonic-gate return (1); 930Sstevel@tonic-gate } 940Sstevel@tonic-gate while ((c = *bp++) != ':') 950Sstevel@tonic-gate if (isdigit(c)) 960Sstevel@tonic-gate n = n*10+c-'0'; 970Sstevel@tonic-gate else 980Sstevel@tonic-gate continue; 990Sstevel@tonic-gate if (n == uid) { 1000Sstevel@tonic-gate FUNLOCKFILE(lk); 1010Sstevel@tonic-gate return (0); 1020Sstevel@tonic-gate } 1030Sstevel@tonic-gate } 1040Sstevel@tonic-gate } 105