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*6812Sraf * Common Development and Distribution License (the "License"). 6*6812Sraf * 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 */ 21*6812Sraf 220Sstevel@tonic-gate /* 23*6812Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 240Sstevel@tonic-gate * Use is subject to license terms. 250Sstevel@tonic-gate */ 260Sstevel@tonic-gate 270Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 280Sstevel@tonic-gate /* All Rights Reserved */ 290Sstevel@tonic-gate 30*6812Sraf #pragma ident "%Z%%M% %I% %E% SMI" 310Sstevel@tonic-gate 32*6812Sraf #include "lint.h" 330Sstevel@tonic-gate #include "file64.h" 340Sstevel@tonic-gate #include "mtlib.h" 350Sstevel@tonic-gate #include <sys/types.h> 360Sstevel@tonic-gate #include <stdio.h> 370Sstevel@tonic-gate #include <memory.h> 380Sstevel@tonic-gate #include <thread.h> 390Sstevel@tonic-gate #include <synch.h> 400Sstevel@tonic-gate #include <errno.h> 410Sstevel@tonic-gate #include "stdiom.h" 420Sstevel@tonic-gate #include "mse.h" 430Sstevel@tonic-gate 440Sstevel@tonic-gate /* read a single line from stdin, replace the '\n' with '\0' */ 450Sstevel@tonic-gate char * 460Sstevel@tonic-gate gets(char *buf) 470Sstevel@tonic-gate { 480Sstevel@tonic-gate char *ptr = buf; 490Sstevel@tonic-gate ssize_t n; 500Sstevel@tonic-gate char *p; 510Sstevel@tonic-gate Uchar *bufend; 520Sstevel@tonic-gate rmutex_t *lk; 530Sstevel@tonic-gate 540Sstevel@tonic-gate FLOCKFILE(lk, stdin); 550Sstevel@tonic-gate 560Sstevel@tonic-gate _SET_ORIENTATION_BYTE(stdin); 570Sstevel@tonic-gate 580Sstevel@tonic-gate if (!(stdin->_flag & (_IOREAD | _IORW))) { 590Sstevel@tonic-gate errno = EBADF; 600Sstevel@tonic-gate FUNLOCKFILE(lk); 610Sstevel@tonic-gate return (0); 620Sstevel@tonic-gate } 630Sstevel@tonic-gate 640Sstevel@tonic-gate if (stdin->_base == NULL) { 650Sstevel@tonic-gate if ((bufend = _findbuf(stdin)) == 0) { 660Sstevel@tonic-gate FUNLOCKFILE(lk); 670Sstevel@tonic-gate return (0); 680Sstevel@tonic-gate } 690Sstevel@tonic-gate } 700Sstevel@tonic-gate else 710Sstevel@tonic-gate bufend = _bufend(stdin); 720Sstevel@tonic-gate 730Sstevel@tonic-gate for (;;) /* until get a '\n' */ 740Sstevel@tonic-gate { 750Sstevel@tonic-gate if (stdin->_cnt <= 0) /* empty buffer */ 760Sstevel@tonic-gate { 770Sstevel@tonic-gate if (__filbuf(stdin) != EOF) { 780Sstevel@tonic-gate stdin->_ptr--; /* put back the character */ 790Sstevel@tonic-gate stdin->_cnt++; 800Sstevel@tonic-gate } else if (ptr == buf) { /* never read anything */ 810Sstevel@tonic-gate FUNLOCKFILE(lk); 820Sstevel@tonic-gate return (0); 830Sstevel@tonic-gate } else 840Sstevel@tonic-gate break; /* nothing left to read */ 850Sstevel@tonic-gate } 860Sstevel@tonic-gate n = stdin->_cnt; 870Sstevel@tonic-gate if ((p = (char *)memccpy(ptr, (char *)stdin->_ptr, '\n', 880Sstevel@tonic-gate (size_t)n)) != 0) 890Sstevel@tonic-gate n = p - ptr; 900Sstevel@tonic-gate ptr += n; 910Sstevel@tonic-gate stdin->_cnt -= n; 920Sstevel@tonic-gate stdin->_ptr += n; 930Sstevel@tonic-gate if (_needsync(stdin, bufend)) 940Sstevel@tonic-gate _bufsync(stdin, bufend); 950Sstevel@tonic-gate if (p != 0) /* found a '\n' */ 960Sstevel@tonic-gate { 970Sstevel@tonic-gate ptr--; /* step back over the '\n' */ 980Sstevel@tonic-gate break; 990Sstevel@tonic-gate } 1000Sstevel@tonic-gate } 1010Sstevel@tonic-gate *ptr = '\0'; 1020Sstevel@tonic-gate FUNLOCKFILE(lk); 1030Sstevel@tonic-gate return (buf); 1040Sstevel@tonic-gate } 105