--- /dev/null
+/*
+ * Copyright (c) 2018 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@
+ */
+
+/*!
+ * @header
+ * Darwin-specific additions for FreeBSD APIs.
+ */
+#ifndef __DARWIN_BSD_H
+#define __DARWIN_BSD_H
+
+#include <os/base.h>
+#include <os/api.h>
+#include <sys/cdefs.h>
+#include <sys/errno.h>
+#include <sys/types.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+__BEGIN_DECLS;
+
+/*!
+ * @function sysctl_get_data_np
+ * A convenience routine for getting a sysctl(3) property whose size is not
+ * known at compile-time.
+ *
+ * @param mib
+ * An array describing the property to manipulate. This is a "management
+ * information base"-style descriptor, as described in sysctl(3).
+ *
+ * @param mib_cnt
+ * The number of items in the MIB array.
+ *
+ * @param buff
+ * On successful return, a pointer to a newly-allocated buffer. The caller is
+ * responsible for free(3)ing this buffer when it is no longer needed.
+ *
+ * @param buff_len
+ * On successful return, the length of the returned buffer.
+ *
+ * @result
+ * See the sysctl(3) man page for possible return codes.
+ */
+DARWIN_API_AVAILABLE_20170407
+OS_EXPORT OS_WARN_RESULT OS_NONNULL1 OS_NONNULL3 OS_NONNULL4
+errno_t
+sysctl_get_data_np(int *mib, size_t mib_cnt, void **buff, size_t *buff_len);
+
+/*!
+ * @function sysctlbyname_get_data_np
+ * A convenience routine for getting a sysctl(3) property whose size is not
+ * known at compile-time.
+ *
+ * @param mibdesc
+ * An ASCII representation of the MIB vector describing the property to
+ * manipulate. Each element of the vector described is separated by a '.'
+ * character (e.g. "kern.ostype").
+ *
+ * @param buff
+ * On successful return, a pointer to a newly-allocated buffer. The caller is
+ * responsible for free(3)ing this buffer when it is no longer needed.
+ *
+ * @param buff_len
+ * On successful return, the length of the returned buffer.
+ *
+ * @result
+ * See the sysctl(3) man page for possible return codes.
+ */
+DARWIN_API_AVAILABLE_20170407
+OS_EXPORT OS_WARN_RESULT OS_NONNULL1 OS_NONNULL2 OS_NONNULL3
+errno_t
+sysctlbyname_get_data_np(const char *mibdesc, void **buff, size_t *buff_len);
+
+/*!
+ * @function os_parse_boot_arg_int
+ * A routine for extracting a boot-arg as an integer value that is semantically
+ * similar to the PE_parse_boot_argn() kernel routine.
+ *
+ * @param which
+ * The name of the boot-arg whose value is to be obtained. The caller may pass
+ * NULL to simply check for the existence of a boot-arg.
+ *
+ * @param where
+ * On successful return, the integer value of the given boot-arg.
+ *
+ * @result
+ * A Boolean indicating whether the named argument was found. If the discovered
+ * argument value was not convertible to an integer according to the contract
+ * in strtoll(3), the implementation will return false.
+ *
+ * @discussion
+ * Boot-args are expressed with an '=' sign as a separator between the name and
+ * value of an argument, e.g. "cs_enforcement_disable=1".
+ */
+DARWIN_API_AVAILABLE_20170407
+OS_EXPORT OS_WARN_RESULT OS_NONNULL1
+bool
+os_parse_boot_arg_int(const char *which, int64_t *where);
+
+/*!
+ * @function os_parse_boot_arg_string
+ * A routine for extracting a boot-arg's string value that is semantically
+ * similar to the PE_parse_boot_argn() kernel routine.
+ *
+ * @param which
+ * The name of the boot-arg whose value is to be obtained.
+ *
+ * @param where
+ * The buffer in which to place the extracted value on successful return. The
+ * caller may pass NULL to simply check for the existence of a boot-arg.
+ *
+ * @param maxlen
+ * The length of the {@link where} buffer. May be zero if the caller only wishes
+ * to check for the existence of a boot-arg.
+ *
+ * @result
+ * A Boolean indicating whether the named argument was found.
+ */
+DARWIN_API_AVAILABLE_20170407
+OS_EXPORT OS_WARN_RESULT OS_NONNULL1
+bool
+os_parse_boot_arg_string(const char *which, char *where, size_t maxlen);
+
+__END_DECLS;
+
+#endif // __DARWIN_BSD_H
projects / apple / libc.git / blobdiff