X-Git-Url: https://git.saurik.com/apple/libc.git/blobdiff_plain/3b2a1fe8d3d02703ddca1b0ead469074d4e47820..5b2abdfbf4211b6592cdd02b9507555a0ecbb04b:/stdio.subproj/fgets.c diff --git a/stdio.subproj/fgets.c b/stdio.subproj/fgets.c deleted file mode 100644 index 45da44e..0000000 --- a/stdio.subproj/fgets.c +++ /dev/null @@ -1,122 +0,0 @@ -/* - * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. - * - * @APPLE_LICENSE_HEADER_START@ - * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. - * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER - * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, - * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. - * - * @APPLE_LICENSE_HEADER_END@ - */ -/* - * Copyright (c) 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Chris Torek. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - - -#include -#include - -/* - * Read at most n-1 characters from the given file. - * Stop when a newline has been read, or the count runs out. - * Return first argument, or NULL if no characters were read. - */ -char * -fgets(buf, n, fp) - char *buf; - register size_t n; - register FILE *fp; -{ - register size_t len; - register char *s; - register unsigned char *p, *t; - - if (n == 0) /* sanity check */ - return (NULL); - - s = buf; - n--; /* leave space for NUL */ - while (n != 0) { - /* - * If the buffer is empty, refill it. - */ - if ((len = fp->_r) <= 0) { - if (__srefill(fp)) { - /* EOF/error: stop with partial or no line */ - if (s == buf) - return (NULL); - break; - } - len = fp->_r; - } - p = fp->_p; - - /* - * Scan through at most n bytes of the current buffer, - * looking for '\n'. If found, copy up to and including - * newline, and stop. Otherwise, copy entire chunk - * and loop. - */ - if (len > n) - len = n; - t = memchr((void *)p, '\n', len); - if (t != NULL) { - len = ++t - p; - fp->_r -= len; - fp->_p = t; - (void)memcpy((void *)s, (void *)p, len); - s[len] = 0; - return (buf); - } - fp->_r -= len; - fp->_p += len; - (void)memcpy((void *)s, (void *)p, len); - s += len; - n -= len; - } - *s = 0; - return (buf); -}