1 files changed, 166 insertions, 0 deletions

diff --git a/libarchive/archive_write_open_filename.c b/libarchive/archive_write_open_filename.c
new file mode 100644
index 000000000000..8a4cd3522196
--- /dev/null
+++ b/libarchive/archive_write_open_filename.c
@@ -0,0 +1,166 @@
+/*-
+ * 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_filename.c 191165 2009-04-17 00:39:35Z 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_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"
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+struct write_file_data {
+	int		fd;
+	char		filename[1];
+};
+
+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, const char *filename)
+{
+	return (archive_write_open_filename(a, filename));
+}
+
+int
+archive_write_open_filename(struct archive *a, const char *filename)
+{
+	struct write_file_data *mine;
+
+	if (filename == NULL || filename[0] == '\0')
+		return (archive_write_open_fd(a, 1));
+
+	mine = (struct write_file_data *)malloc(sizeof(*mine) + strlen(filename));
+	if (mine == NULL) {
+		archive_set_error(a, ENOMEM, "No memory");
+		return (ARCHIVE_FATAL);
+	}
+	strcpy(mine->filename, filename);
+	mine->fd = -1;
+	return (archive_write_open(a, mine,
+		file_open, file_write, file_close));
+}
+
+static int
+file_open(struct archive *a, void *client_data)
+{
+	int flags;
+	struct write_file_data *mine;
+	struct stat st;
+
+	mine = (struct write_file_data *)client_data;
+	flags = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY;
+
+	/*
+	 * Open the file.
+	 */
+	mine->fd = open(mine->filename, flags, 0666);
+	if (mine->fd < 0) {
+		archive_set_error(a, errno, "Failed to open '%s'",
+		    mine->filename);
+		return (ARCHIVE_FATAL);
+	}
+
+	if (fstat(mine->fd, &st) != 0) {
+               archive_set_error(a, errno, "Couldn't stat '%s'",
+                   mine->filename);
+               return (ARCHIVE_FATAL);
+	}
+
+	/*
+	 * Set up default last block handling.
+	 */
+	if (archive_write_get_bytes_in_last_block(a) < 0) {
+		if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode) ||
+		    S_ISFIFO(st.st_mode))
+			/* Pad last block when writing to device or FIFO. */
+			archive_write_set_bytes_in_last_block(a, 0);
+		else
+			/* Don't pad last block otherwise. */
+			archive_write_set_bytes_in_last_block(a, 1);
+	}
+
+	/*
+	 * If the output file is a regular file, don't add it to
+	 * itself.  If it's a device file, it's okay to add the device
+	 * entry to the output archive.
+	 */
+	if (S_ISREG(st.st_mode))
+		archive_write_set_skip_file(a, st.st_dev, st.st_ino);
+
+	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;
+	ssize_t	bytesWritten;
+
+	mine = (struct write_file_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_file_data	*mine = (struct write_file_data *)client_data;
+
+	(void)a; /* UNUSED */
+	close(mine->fd);
+	free(mine);
+	return (ARCHIVE_OK);
+}