freebsd-dev/lib/libarchive/archive_write_open_file.c
Martin Matuska b837506cbc Merge revision 3554 from libarchive's release/2.8 branch:
Partial merge of 2431 from trunk:  Retry writes on EINTR.
This should fix the SIGINT handler in bsdtar.
Note:  The rest of r2431 can't be merged, since it interacts
with a big write-side rearchitecture.

PR:		bin/149409
Reviewed by:	kientzle
Approved by:	re (kib)
MFC after:	3 days
2011-08-07 20:24:32 +00:00

110 lines
2.9 KiB
C

/*-
* Copyright (c) 2003-2007 Tim Kientzle
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "archive_platform.h"
__FBSDID("$FreeBSD$");
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "archive.h"
struct write_FILE_data {
FILE *f;
};
static int file_close(struct archive *, void *);
static int file_open(struct archive *, void *);
static ssize_t file_write(struct archive *, void *, const void *buff, size_t);
int
archive_write_open_FILE(struct archive *a, FILE *f)
{
struct write_FILE_data *mine;
mine = (struct write_FILE_data *)malloc(sizeof(*mine));
if (mine == NULL) {
archive_set_error(a, ENOMEM, "No memory");
return (ARCHIVE_FATAL);
}
mine->f = f;
return (archive_write_open(a, mine,
file_open, file_write, file_close));
}
static int
file_open(struct archive *a, void *client_data)
{
(void)a; /* UNUSED */
(void)client_data; /* UNUSED */
return (ARCHIVE_OK);
}
static ssize_t
file_write(struct archive *a, void *client_data, const void *buff, size_t length)
{
struct write_FILE_data *mine;
size_t bytesWritten;
mine = client_data;
for (;;) {
bytesWritten = fwrite(buff, 1, length, mine->f);
if (bytesWritten <= 0) {
if (errno == EINTR)
continue;
archive_set_error(a, errno, "Write error");
return (-1);
}
return (bytesWritten);
}
}
static int
file_close(struct archive *a, void *client_data)
{
struct write_FILE_data *mine = client_data;
(void)a; /* UNUSED */
free(mine);
return (ARCHIVE_OK);
}