X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/21362eb3e66fd2c787aee132bce100a44d71a99c..4452a7af2eac33dbad800bcc91f2399d62c18f53:/bsd/dev/chud/chud_process.c

diff --git a/bsd/dev/chud/chud_process.c b/bsd/dev/chud/chud_process.c
new file mode 100644
index 000000000..a27928e1a
--- /dev/null
+++ b/bsd/dev/chud/chud_process.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_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. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * 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_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+#include <sys/systm.h>
+#include <sys/proc_internal.h>
+#include <sys/vnode_internal.h> // vn_getpath()
+#include <kern/task.h>
+#include <sys/user.h>
+
+int	chudxnu_pid_for_task(task_t task);
+task_t	chudxnu_task_for_pid(int pid);
+int	chudxnu_current_pid(void);
+
+__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)
+{
+    int pid = -1;
+    struct uthread *ut = get_bsdthread_info(current_thread());
+    task_t t = current_task();
+
+    if(t != TASK_NULL) {
+        pid = chudxnu_pid_for_task(t);
+    } else {
+        // no task, so try looking in the uthread and/or proc
+        pid = current_proc()->p_pid;
+
+        if(ut && ut->uu_proc) {
+            pid = ut->uu_proc->p_pid;
+        }
+    }
+    
+    return pid;
+}