--- /dev/null
+/*
+ * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License"). You may not use this file except in compliance with the
+ * License. Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ *
+ * This 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 OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#include <sys/systm.h>
+#include <sys/proc_internal.h>
+#include <sys/vnode_internal.h> // vn_getpath()
+
+__private_extern__
+int chudxnu_pid_for_task(task_t task)
+{
+ struct proc *p;
+
+ if(task!=TASK_NULL) {
+ p = (struct proc *)(get_bsdtask_info(task));
+ if(p) {
+ return (p->p_pid);
+ }
+ }
+ return -1;
+}
+
+__private_extern__
+task_t chudxnu_task_for_pid(int pid)
+{
+ struct proc *p = pfind(pid);
+ if(p) {
+ return p->task;
+ }
+ return TASK_NULL;
+}
+
+__private_extern__
+int chudxnu_current_pid(void)
+{
+ return current_proc()->p_pid;
+}