1/*-
2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Chris Torek.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#if defined(LIBC_SCCS) && !defined(lint)
38static char sccsid[] = "@(#)fwrite.c 8.1 (Berkeley) 6/4/93";
39#endif /* LIBC_SCCS and not lint */
40#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Chris Torek.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#if defined(LIBC_SCCS) && !defined(lint)
38static char sccsid[] = "@(#)fwrite.c 8.1 (Berkeley) 6/4/93";
39#endif /* LIBC_SCCS and not lint */
40#include <sys/cdefs.h>
|
42
43#include "namespace.h"
44#include <stdio.h>
45#include "un-namespace.h"
46#include "local.h"
47#include "fvwrite.h"
48#include "libc_private.h"
49
50/*
51 * Write `count' objects (each size `size') from memory to the given file.
52 * Return the number of whole objects written.
53 */
54size_t
55fwrite(buf, size, count, fp)
56 const void *buf;
57 size_t size, count;
58 FILE *fp;
59{
60 size_t n;
61 struct __suio uio;
62 struct __siov iov;
63
64 iov.iov_base = (void *)buf;
65 uio.uio_resid = iov.iov_len = n = count * size;
66 uio.uio_iov = &iov;
67 uio.uio_iovcnt = 1;
68
69 FLOCKFILE(fp);
| 42
43#include "namespace.h"
44#include <stdio.h>
45#include "un-namespace.h"
46#include "local.h"
47#include "fvwrite.h"
48#include "libc_private.h"
49
50/*
51 * Write `count' objects (each size `size') from memory to the given file.
52 * Return the number of whole objects written.
53 */
54size_t
55fwrite(buf, size, count, fp)
56 const void *buf;
57 size_t size, count;
58 FILE *fp;
59{
60 size_t n;
61 struct __suio uio;
62 struct __siov iov;
63
64 iov.iov_base = (void *)buf;
65 uio.uio_resid = iov.iov_len = n = count * size;
66 uio.uio_iov = &iov;
67 uio.uio_iovcnt = 1;
68
69 FLOCKFILE(fp);
|
70 /*
71 * The usual case is success (__sfvwrite returns 0);
72 * skip the divide if this happens, since divides are
73 * generally slow and since this occurs whenever size==0.
74 */
75 if (__sfvwrite(fp, &uio) != 0)
76 count = (n - uio.uio_resid) / size;
77 FUNLOCKFILE(fp);
78 return (count);
79}
| 71 /*
72 * The usual case is success (__sfvwrite returns 0);
73 * skip the divide if this happens, since divides are
74 * generally slow and since this occurs whenever size==0.
75 */
76 if (__sfvwrite(fp, &uio) != 0)
77 count = (n - uio.uio_resid) / size;
78 FUNLOCKFILE(fp);
79 return (count);
80}
|