1/*-
2 * Copyright (c) 2002-2004 Tim J. Robbins.
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
--- 11 unchanged lines hidden (view full) ---
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.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/lib/libc/stdio/fgetwln.c 133223 2004-08-06 17:00:09Z tjr $");
29
30#include "namespace.h"
31#include <stdio.h>
32#include <wchar.h>
33#include "un-namespace.h"
34#include "libc_private.h"
35#include "local.h"
36
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41 size_t len;
42
43 FLOCKFILE(fp);
44 ORIENT(fp, 1);
45
46 len = 0;
47 while ((wc = __fgetwc(fp)) != WEOF) {
48#define GROW 512
49 if (len * sizeof(wchar_t) >= fp->_lb._size &&
50 __slbexpand(fp, (len + GROW) * sizeof(wchar_t)))
51 goto error;
52 *((wchar_t *)fp->_lb._base + len++) = wc;
53 if (wc == L'\n')
54 break;
55 }
56 if (len == 0)
57 goto error;
58
59 FUNLOCKFILE(fp);
60 *lenp = len;
61 return ((wchar_t *)fp->_lb._base);
62
63error:
64 FUNLOCKFILE(fp);
65 *lenp = 0;
66 return (NULL);
67}
2 * Copyright (c) 2002-2004 Tim J. Robbins.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
--- 11 unchanged lines hidden (view full) ---
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/lib/libc/stdio/fgetwln.c 133223 2004-08-06 17:00:09Z tjr $");
29
30#include "namespace.h"
31#include <stdio.h>
32#include <wchar.h>
33#include "un-namespace.h"
34#include "libc_private.h"
35#include "local.h"
36
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41 size_t len;
42
43 FLOCKFILE(fp);
44 ORIENT(fp, 1);
45
46 len = 0;
47 while ((wc = __fgetwc(fp)) != WEOF) {
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
63error:
64 FUNLOCKFILE(fp);
65 *lenp = 0;
66 return (NULL);
67}