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Dogcows Code - chaz/tar/blob - full-write.c
1f5b78702931b4ed8b6a7fde11fd964bf0f9b81f
1 /* full-write.c -- an interface to write that retries after interrupts
2 Copyright 1993,94,97,98,99,2000, 2001 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 Copied largely from GNU C's cccp.c.
25 #include <sys/types.h>
27 #include "full-write.h"
38 /* Write LEN bytes at PTR to descriptor DESC, retrying if interrupted
39 or if partial writes occur. Return the number of bytes successfully
40 written, setting errno if that is less than LEN. */
43 full_write (int desc
, const char *ptr
, size_t len
)
45 size_t total_written
= 0;
49 ssize_t written
= write (desc
, ptr
, len
);
52 /* Some buggy drivers return 0 when you fall off a device's end. */
61 total_written
+= written
;
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