projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 5b2abdfb | 1 | /*- |
| 1f2f436a | 2 | * Copyright (c) 2002-2004 Tim J. Robbins. |
| 5b2abdfb A |
3 | * All rights reserved. |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * | |
| 14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
| 15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 24 | * SUCH DAMAGE. | |
| 5b2abdfb | 25 | */ |
| 5b2abdfb | 26 | |
| 9385eb3d | 27 | #include <sys/cdefs.h> |
| 1f2f436a | 28 | __FBSDID("$FreeBSD: src/lib/libc/stdio/fgetwln.c,v 1.2 2004/08/06 17:00:09 tjr Exp $"); |
| 9385eb3d | 29 | |
| 1f2f436a | 30 | #include "namespace.h" |
| 9385eb3d | 31 | #include <stdio.h> |
| 1f2f436a A |
32 | #include <wchar.h> |
| 33 | #include "un-namespace.h" | |
| 34 | #include "libc_private.h" | |
| 35 | #include "local.h" | |
| 9385eb3d | 36 | |
| 1f2f436a | 37 | wchar_t * |
| ad3c9f2a | 38 | fgetwln_l(FILE * __restrict fp, size_t *lenp, locale_t loc) |
| 9385eb3d | 39 | { |
| 1f2f436a A |
40 | wint_t wc; |
| 41 | size_t len; | |
| 42 | ||
| 43 | FLOCKFILE(fp); | |
| 44 | ORIENT(fp, 1); | |
| 45 | ||
| 46 | len = 0; | |
| ad3c9f2a | 47 | while ((wc = __fgetwc(fp, loc)) != WEOF) { |
| 1f2f436a A |
48 | #define GROW 512 |
| 49 | if (len * sizeof(wchar_t) >= fp->_lb._size && | |
| 50 | __slbexpand(fp, (len + GROW) * sizeof(wchar_t))) | |
| 51 | goto error; | |
| 52 | *((wchar_t *)fp->_lb._base + len++) = wc; | |
| 53 | if (wc == L'\n') | |
| 54 | break; | |
| 55 | } | |
| 56 | if (len == 0) | |
| 57 | goto error; | |
| 58 | ||
| 59 | FUNLOCKFILE(fp); | |
| 60 | *lenp = len; | |
| 61 | return ((wchar_t *)fp->_lb._base); | |
| 62 | ||
| 63 | error: | |
| 64 | FUNLOCKFILE(fp); | |
| 65 | *lenp = 0; | |
| 66 | return (NULL); | |
| 5b2abdfb | 67 | } |
| ad3c9f2a A |
68 | |
| 69 | wchar_t * | |
| 70 | fgetwln(FILE * __restrict fp, size_t *lenp) | |
| 71 | { | |
| 72 | return fgetwln_l(fp, lenp, __current_locale()); | |
| 73 | } |