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/*-
* 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: head/lib/libarchive/archive_write_open_fd.c 201093 2009-12-28 02:28:44Z kientzle $");
#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_IO_H
#include <io.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_fd_data {
int fd;
};
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_fd(struct archive *a, int fd)
{
struct write_fd_data *mine;
mine = (struct write_fd_data *)malloc(sizeof(*mine));
if (mine == NULL) {
archive_set_error(a, ENOMEM, "No memory");
return (ARCHIVE_FATAL);
}
mine->fd = fd;
#if defined(__CYGWIN__) || defined(_WIN32)
setmode(mine->fd, O_BINARY);
#endif
return (archive_write_open(a, mine,
file_open, file_write, file_close));
}
static int
file_open(struct archive *a, void *client_data)
{
struct write_fd_data *mine;
struct stat st;
mine = (struct write_fd_data *)client_data;
if (fstat(mine->fd, &st) != 0) {
archive_set_error(a, errno, "Couldn't stat fd %d", mine->fd);
return (ARCHIVE_FATAL);
}
/*
* If this is a regular file, don't add it to itself.
*/
if (S_ISREG(st.st_mode))
archive_write_set_skip_file(a, st.st_dev, st.st_ino);
/*
* If client hasn't explicitly set the last block handling,
* then set it here.
*/
if (archive_write_get_bytes_in_last_block(a) < 0) {
/* If the output is a block or character device, fifo,
* or stdout, pad the last block, otherwise leave it
* unpadded. */
if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode) ||
S_ISFIFO(st.st_mode) || (mine->fd == 1))
/* Last block will be fully padded. */
archive_write_set_bytes_in_last_block(a, 0);
else
archive_write_set_bytes_in_last_block(a, 1);
}
return (ARCHIVE_OK);
}
static ssize_t
file_write(struct archive *a, void *client_data, const void *buff, size_t length)
{
struct write_fd_data *mine;
ssize_t bytesWritten;
mine = (struct write_fd_data *)client_data;
for (;;) {
bytesWritten = write(mine->fd, buff, length);
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_fd_data *mine = (struct write_fd_data *)client_data;
(void)a; /* UNUSED */
free(mine);
return (ARCHIVE_OK);
}