1 #ifdef HAVE_CONFIG_H 2 #include "config.h" 3 #endif 4 5 #ifdef HAVE_FGETLN 6 7 int dummy; 8 9 #else 10 11 /* $NetBSD: compat_fgetln.c,v 1.2 2012/01/30 17:03:01 joerg Exp $ */ 12 13 /*- 14 * Copyright (c) 1998 The NetBSD Foundation, Inc. 15 * All rights reserved. 16 * 17 * This code is derived from software contributed to The NetBSD Foundation 18 * by Christos Zoulas. 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions 22 * are met: 23 * 1. Redistributions of source code must retain the above copyright 24 * notice, this list of conditions and the following disclaimer. 25 * 2. Redistributions in binary form must reproduce the above copyright 26 * notice, this list of conditions and the following disclaimer in the 27 * documentation and/or other materials provided with the distribution. 28 * 3. Neither the name of The NetBSD Foundation nor the names of its 29 * contributors may be used to endorse or promote products derived 30 * from this software without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 33 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 34 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 35 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 36 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 37 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 38 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 39 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 40 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 41 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 42 * POSSIBILITY OF SUCH DAMAGE. 43 */ 44 #include <errno.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 49 char * 50 fgetln(fp, len) 51 FILE *fp; 52 size_t *len; 53 { 54 static char *buf = NULL; 55 static size_t bufsiz = 0; 56 char *ptr; 57 58 59 if (buf == NULL) { 60 bufsiz = BUFSIZ; 61 if ((buf = malloc(bufsiz)) == NULL) 62 return NULL; 63 } 64 65 if (fgets(buf, bufsiz, fp) == NULL) 66 return NULL; 67 68 *len = 0; 69 while ((ptr = strchr(&buf[*len], '\n')) == NULL) { 70 size_t nbufsiz = bufsiz + BUFSIZ; 71 char *nbuf = realloc(buf, nbufsiz); 72 73 if (nbuf == NULL) { 74 int oerrno = errno; 75 free(buf); 76 errno = oerrno; 77 buf = NULL; 78 return NULL; 79 } else 80 buf = nbuf; 81 82 *len = bufsiz; 83 if (fgets(&buf[bufsiz], BUFSIZ, fp) == NULL) 84 return buf; 85 86 bufsiz = nbufsiz; 87 } 88 89 *len = (ptr - buf) + 1; 90 return buf; 91 } 92 93 #endif 94