1 /* $NetBSD: getline.c,v 1.1.1.6 2015/01/02 20:34:27 christos Exp $ */
3 /* NetBSD: getline.c,v 1.2 2014/09/16 17:23:50 christos Exp */
6 * Copyright (c) 2011 The NetBSD Foundation, Inc.
9 * This code is derived from software contributed to The NetBSD Foundation
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
34 /* NETBSD ORIGINAL: external/bsd/file/dist/src/getline.c */
50 getdelim(char **buf, size_t *bufsiz, int delimiter, FILE *fp)
55 if (*buf == NULL || *bufsiz == 0) {
56 if ((*buf = malloc(BUFSIZ)) == NULL)
61 for (ptr = *buf, eptr = *buf + *bufsiz;;) {
65 ssize_t diff = (ssize_t)(ptr - *buf);
78 if (ptr + 2 >= eptr) {
80 size_t nbufsiz = *bufsiz * 2;
81 ssize_t d = ptr - *buf;
82 if ((nbuf = realloc(*buf, nbufsiz)) == NULL)
86 eptr = nbuf + nbufsiz;
93 getline(char **buf, size_t *bufsiz, FILE *fp)
95 return getdelim(buf, bufsiz, '\n', fp);
102 main(int argc, char *argv[])
108 while ((len = getline(&p, &n, stdin)) != -1)
109 (void)printf("%" SIZE_T_FORMAT "d %s", len, p);