Last change
on this file since 3475 was 2725, checked in by Bruno Cornec, 14 years ago |
- Update mindi-busybox to 1.18.3 to avoid problems with the tar command which is now failing on recent versions with busybox 1.7.3
|
File size:
818 bytes
|
Line | |
---|
1 | /* vi: set sw=4 ts=4: */
|
---|
2 | /*
|
---|
3 | * Utility routines.
|
---|
4 | *
|
---|
5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
|
---|
6 | *
|
---|
7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
---|
8 | */
|
---|
9 |
|
---|
10 | #include "libbb.h"
|
---|
11 |
|
---|
12 | /*
|
---|
13 | * Write all of the supplied buffer out to a file.
|
---|
14 | * This does multiple writes as necessary.
|
---|
15 | * Returns the amount written, or -1 on an error.
|
---|
16 | */
|
---|
17 | ssize_t FAST_FUNC full_write(int fd, const void *buf, size_t len)
|
---|
18 | {
|
---|
19 | ssize_t cc;
|
---|
20 | ssize_t total;
|
---|
21 |
|
---|
22 | total = 0;
|
---|
23 |
|
---|
24 | while (len) {
|
---|
25 | cc = safe_write(fd, buf, len);
|
---|
26 |
|
---|
27 | if (cc < 0) {
|
---|
28 | if (total) {
|
---|
29 | /* we already wrote some! */
|
---|
30 | /* user can do another write to know the error code */
|
---|
31 | return total;
|
---|
32 | }
|
---|
33 | return cc; /* write() returns -1 on failure. */
|
---|
34 | }
|
---|
35 |
|
---|
36 | total += cc;
|
---|
37 | buf = ((const char *)buf) + cc;
|
---|
38 | len -= cc;
|
---|
39 | }
|
---|
40 |
|
---|
41 | return total;
|
---|
42 | }
|
---|
Note:
See
TracBrowser
for help on using the repository browser.