[apple/libc.git] / darwin / subsystem.h

/*
* Copyright (c) 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 __SUBSYSTEM_H__
#define __SUBSYSTEM_H__

#include <sys/stat.h>

__BEGIN_DECLS
/*
 * Returns an fd for the given path, relative to root or to
 * the subsystem root for the process.  Behaves exactly like
 * open in every way, except O_CREAT is forbidden.
 *
 * Returns a file descriptor on success, or -1 on failure.
 * errno is set exactly as open would have set it, except
 * that O_CREAT will result in EINVAL.
 */
int open_with_subsystem(const char * path, int oflag);

/*
 * Invokes stat for the given path, relative to root or to
 * the subsystem root for the process.  Behaves exactly like
 * stat in every way.
 *
 * Returns 0 on success, or -1 on failure.  On failure, errno
 * is set exactly as stat would have set it.
 */
int stat_with_subsystem(const char *__restrict path, struct stat *__restrict buf);
__END_DECLS

#endif /* __SUBSYSTEM_H__ */
Commit	Line	Data
a9aaacca A	1	/*
	2	* Copyright (c) 2019 Apple Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. Please obtain a copy of the License at
	10	* http://www.opensource.apple.com/apsl/ and read it before using this
	11	* file.
	12	*
	13	* The Original Code and all software distributed under the License are
	14	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	15	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	16	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	18	* Please see the License for the specific language governing rights and
	19	* limitations under the License.
	20	*
	21	* @APPLE_LICENSE_HEADER_END@
	22	*/
	23
	24	#ifndef __SUBSYSTEM_H__
	25	#define __SUBSYSTEM_H__
	26
	27	#include <sys/stat.h>
	28
	29	__BEGIN_DECLS
	30	/*
	31	* Returns an fd for the given path, relative to root or to
	32	* the subsystem root for the process. Behaves exactly like
	33	* open in every way, except O_CREAT is forbidden.
	34	*
	35	* Returns a file descriptor on success, or -1 on failure.
	36	* errno is set exactly as open would have set it, except
	37	* that O_CREAT will result in EINVAL.
	38	*/
	39	int open_with_subsystem(const char * path, int oflag);
	40
	41	/*
	42	* Invokes stat for the given path, relative to root or to
	43	* the subsystem root for the process. Behaves exactly like
	44	* stat in every way.
	45	*
	46	* Returns 0 on success, or -1 on failure. On failure, errno
	47	* is set exactly as stat would have set it.
	48	*/
	49	int stat_with_subsystem(const char __restrict path, struct stat __restrict buf);
	50	__END_DECLS
	51
	52	#endif /* __SUBSYSTEM_H__ */