1 /* $NetBSD: fgetln.c,v 1.16 2009/12/02 09:03:13 roy Exp $ */
2
3 /*-
4 * Copyright (c) 1990, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Chris Torek.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #include <sys/cdefs.h>
36 __RCSID("$NetBSD: fgetln.c,v 1.16 2009/12/02 09:03:13 roy Exp $");
37
38 #include "namespace.h"
39
40 #include <stdio.h>
41
42 #include "reentrant.h"
43 #include "local.h"
44
45 #ifdef __weak_alias
__weak_alias(fgetln,_fgetln)46 __weak_alias(fgetln,_fgetln)
47 #endif
48
49 /*
50 * Get an input line.
51 * This now uses getdelim(3) for a code reduction.
52 * The upside is that strings are now always NULL terminated, but relying
53 * on this is non portable - better to use the POSIX getdelim(3) function.
54 */
55 char *
56 fgetln(FILE *fp, size_t *lenp)
57 {
58 char *p;
59
60 FLOCKFILE(fp);
61 p = __fgetstr(fp, lenp, '\n');
62 FUNLOCKFILE(fp);
63 return p;
64 }
65