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author | Denis Vlasenko <vda.linux@googlemail.com> | 2006-10-14 02:23:43 +0000 |
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committer | Denis Vlasenko <vda.linux@googlemail.com> | 2006-10-14 02:23:43 +0000 |
commit | ea62077b850076c4d7dc3cf78ebd1888928c6ddf (patch) | |
tree | 37b7584ae40b99edb5583fbc4392b62ffdadf278 /libbb/full_read.c | |
parent | 88ca06769028e442bf873b270c176ca0e9f021f8 (diff) | |
download | busybox-w32-ea62077b850076c4d7dc3cf78ebd1888928c6ddf.tar.gz busybox-w32-ea62077b850076c4d7dc3cf78ebd1888928c6ddf.tar.bz2 busybox-w32-ea62077b850076c4d7dc3cf78ebd1888928c6ddf.zip |
add open_read_close() and similar stuff
Diffstat (limited to 'libbb/full_read.c')
-rw-r--r-- | libbb/full_read.c | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/libbb/full_read.c b/libbb/full_read.c deleted file mode 100644 index 068d16698..000000000 --- a/libbb/full_read.c +++ /dev/null | |||
@@ -1,42 +0,0 @@ | |||
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 tarball for details. | ||
8 | */ | ||
9 | |||
10 | #include <stdio.h> | ||
11 | #include <unistd.h> | ||
12 | #include "libbb.h" | ||
13 | |||
14 | /* | ||
15 | * Read all of the supplied buffer from a file. | ||
16 | * This does multiple reads as necessary. | ||
17 | * Returns the amount read, or -1 on an error. | ||
18 | * A short read is returned on an end of file. | ||
19 | */ | ||
20 | ssize_t full_read(int fd, void *buf, size_t len) | ||
21 | { | ||
22 | ssize_t cc; | ||
23 | ssize_t total; | ||
24 | |||
25 | total = 0; | ||
26 | |||
27 | while (len) { | ||
28 | cc = safe_read(fd, buf, len); | ||
29 | |||
30 | if (cc < 0) | ||
31 | return cc; /* read() returns -1 on failure. */ | ||
32 | |||
33 | if (cc == 0) | ||
34 | break; | ||
35 | |||
36 | buf = ((char *)buf) + cc; | ||
37 | total += cc; | ||
38 | len -= cc; | ||
39 | } | ||
40 | |||
41 | return total; | ||
42 | } | ||