add copyfile.h

libcxx depends on it

lib/libc/include/x86_64-macos-gnu/copyfile.h

@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2004-2019 Apple, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+#ifndef _COPYFILE_H_ /* version 0.1 */
+#define _COPYFILE_H_
+
+/*
+ * This API facilitates the copying of files and their associated
+ * metadata.  There are several open source projects that need
+ * modifications to support preserving extended attributes and ACLs
+ * and this API collapses several hundred lines of modifications into
+ * one or two calls.
+ */
+
+/* private */
+#include <sys/cdefs.h>
+#include <stdint.h>
+
+__BEGIN_DECLS
+struct _copyfile_state;
+typedef struct _copyfile_state * copyfile_state_t;
+typedef uint32_t copyfile_flags_t;
+
+/* public */
+
+/* receives:
+ *   from	path to source file system object
+ *   to		path to destination file system object
+ *   state	opaque blob for future extensibility
+ *		Must be NULL in current implementation
+ *   flags	(described below)
+ * returns:
+ *   int	negative for error
+ */
+
+int copyfile(const char *from, const char *to, copyfile_state_t state, copyfile_flags_t flags);
+int fcopyfile(int from_fd, int to_fd, copyfile_state_t, copyfile_flags_t flags);
+
+int copyfile_state_free(copyfile_state_t);
+copyfile_state_t copyfile_state_alloc(void);
+
+
+int copyfile_state_get(copyfile_state_t s, uint32_t flag, void * dst);
+int copyfile_state_set(copyfile_state_t s, uint32_t flag, const void * src);
+
+typedef int (*copyfile_callback_t)(int, int, copyfile_state_t, const char *, const char *, void *);
+
+#define COPYFILE_STATE_SRC_FD		1
+#define COPYFILE_STATE_SRC_FILENAME	2
+#define COPYFILE_STATE_DST_FD		3
+#define COPYFILE_STATE_DST_FILENAME	4
+#define COPYFILE_STATE_QUARANTINE	5
+#define	COPYFILE_STATE_STATUS_CB	6
+#define	COPYFILE_STATE_STATUS_CTX	7
+#define	COPYFILE_STATE_COPIED		8
+#define	COPYFILE_STATE_XATTRNAME	9
+#define	COPYFILE_STATE_WAS_CLONED	10
+
+
+#define	COPYFILE_DISABLE_VAR	"COPYFILE_DISABLE"
+
+/* flags for copyfile */
+
+#define COPYFILE_ACL	    (1<<0)
+#define COPYFILE_STAT	    (1<<1)
+#define COPYFILE_XATTR	    (1<<2)
+#define COPYFILE_DATA	    (1<<3)
+
+#define COPYFILE_SECURITY   (COPYFILE_STAT | COPYFILE_ACL)
+#define COPYFILE_METADATA   (COPYFILE_SECURITY | COPYFILE_XATTR)
+#define COPYFILE_ALL	    (COPYFILE_METADATA | COPYFILE_DATA)
+
+#define	COPYFILE_RECURSIVE	(1<<15)	/* Descend into hierarchies */
+#define COPYFILE_CHECK		(1<<16) /* return flags for xattr or acls if set */
+#define COPYFILE_EXCL		(1<<17) /* fail if destination exists */
+#define COPYFILE_NOFOLLOW_SRC	(1<<18) /* don't follow if source is a symlink */
+#define COPYFILE_NOFOLLOW_DST	(1<<19) /* don't follow if dst is a symlink */
+#define COPYFILE_MOVE		(1<<20) /* unlink src after copy */
+#define COPYFILE_UNLINK		(1<<21) /* unlink dst before copy */
+#define COPYFILE_NOFOLLOW	(COPYFILE_NOFOLLOW_SRC | COPYFILE_NOFOLLOW_DST)
+
+#define COPYFILE_PACK		(1<<22)
+#define COPYFILE_UNPACK		(1<<23)
+
+#define COPYFILE_CLONE		(1<<24)
+#define COPYFILE_CLONE_FORCE	(1<<25)
+
+#define COPYFILE_RUN_IN_PLACE	(1<<26)
+
+#define COPYFILE_DATA_SPARSE	(1<<27)
+
+#define COPYFILE_PRESERVE_DST_TRACKED	(1<<28)
+
+#define COPYFILE_VERBOSE	(1<<30)
+
+#define	COPYFILE_RECURSE_ERROR	0
+#define	COPYFILE_RECURSE_FILE	1
+#define	COPYFILE_RECURSE_DIR	2
+#define	COPYFILE_RECURSE_DIR_CLEANUP	3
+#define	COPYFILE_COPY_DATA	4
+#define	COPYFILE_COPY_XATTR	5
+
+#define	COPYFILE_START		1
+#define	COPYFILE_FINISH		2
+#define	COPYFILE_ERR		3
+#define	COPYFILE_PROGRESS	4
+
+#define	COPYFILE_CONTINUE	0
+#define	COPYFILE_SKIP	1
+#define	COPYFILE_QUIT	2
+
+__END_DECLS
+
+#endif /* _COPYFILE_H_ */