xnu-7195.101.1.tar.gz

[apple/xnu.git] / bsd / dev / i386 / stubs.c

diff --git a/bsd/dev/i386/stubs.c b/bsd/dev/i386/stubs.c
index f4804dad7200768d936164c4eb8cc0d6cabbce62..aeb74b11f6beed925a5984fc318baf851325ad77 100644 (file)
--- a/bsd/dev/i386/stubs.c
+++ b/bsd/dev/i386/stubs.c
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 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
@@ -11,10 +11,10 @@
  * 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,
@@ -22,7 +22,7 @@
  * 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@
  */
 /*
@@ -43,14 +43,9 @@
 #include <kern/task.h>
 #include <kern/thread.h>
 #include <vm/vm_map.h>
+#include <machine/machine_routines.h>
 
-/* XXX should be elsewhere (cpeak) */
-extern int     set_bsduthreadargs(thread_t, void *, void *);
-extern void    *get_bsduthreadarg(thread_t);
-extern int     *get_bsduthreadrval(thread_t);
-extern int     *get_bsduthreadlowpridelay(thread_t);
-
-/* 
+/*
  * copy a null terminated string from the kernel address space into
  * the user address space.
  *   - if the user is denied write access, return EFAULT.
@@ -63,25 +58,27 @@ extern int  *get_bsduthreadlowpridelay(thread_t);
 int
 copyoutstr(const void *from, user_addr_t to, size_t maxlen, size_t *lencopied)
 {
-       size_t  slen;
-       size_t  len;
-       int     error = 0;
+       size_t  slen;
+       size_t  len;
+       int     error = 0;
 
        slen = strlen(from) + 1;
-       if (slen > maxlen)
+       if (slen > maxlen) {
                error = ENAMETOOLONG;
+       }
 
-       len = min(maxlen,slen);
-       if (copyout(from, to, len))
+       len = min(maxlen, slen);
+       if (copyout(from, to, len)) {
                error = EFAULT;
+       }
        *lencopied = len;
 
        return error;
 }
 
 
-/* 
- * copy a null terminated string from one point to another in 
+/*
+ * copy a null terminated string from one point to another in
  * the kernel address space.
  *   - no access checks are performed.
  *   - if the end of string isn't found before
@@ -94,79 +91,27 @@ copyoutstr(const void *from, user_addr_t to, size_t maxlen, size_t *lencopied)
 int
 copystr(const void *vfrom, void *vto, size_t maxlen, size_t *lencopied)
 {
-       size_t          l;
-       char const      *from = (char const *) vfrom;
-       char            *to = (char *) vto;
+       size_t          l;
+       char const      *from = (char const *) vfrom;
+       char            *to = (char *) vto;
 
        for (l = 0; l < maxlen; l++) {
                if ((*to++ = *from++) == '\0') {
-                       if (lencopied)
+                       if (lencopied) {
                                *lencopied = l + 1;
+                       }
                        return 0;
                }
        }
-       if (lencopied)
+       if (lencopied) {
                *lencopied = maxlen;
+       }
        return ENAMETOOLONG;
 }
 
 int
 copywithin(void *src, void *dst, size_t count)
 {
-       bcopy(src,dst,count);
+       bcopy(src, dst, count);
        return 0;
 }
-
-int
-set_bsduthreadargs(thread_t th, void * pcb, __unused void *ignored_arg)
-{
-       struct uthread * ut;
-       struct proc *p = current_proc();
-
-       ut = get_bsdthread_info(th);
-       ut->uu_ar0 = (int *)pcb;
-
-       /*
-        * Delayed binding of thread credential to process credential.
-        *
-        * XXX This doesn't really belong here, but the i386 code has a
-        * XXX number of seemingly gratuitous structural differences that
-        * XXX make this the most appropriate place to do the work.
-        */
-       if (ut->uu_ucred != p->p_ucred &&
-           (ut->uu_flag & UT_SETUID) == 0) {
-               kauth_cred_t old = ut->uu_ucred;
-               proc_lock(p);
-               ut->uu_ucred = p->p_ucred;
-               kauth_cred_ref(ut->uu_ucred);
-               proc_unlock(p);
-               if (old != NOCRED)
-                       kauth_cred_rele(old);
-       }
-
-       return(1);
-}
-
-void *
-get_bsduthreadarg(thread_t th)
-{
-struct uthread *ut;
-       ut = get_bsdthread_info(th);
-       return((void *)(ut->uu_arg));
-}
-
-int *
-get_bsduthreadrval(thread_t th)
-{
-struct uthread *ut;
-       ut = get_bsdthread_info(th);
-       return(&ut->uu_rval[0]);
-}
-
-int *
-get_bsduthreadlowpridelay(thread_t th)
-{
-struct uthread *ut;
-       ut = get_bsdthread_info(th);
-       return(&ut->uu_lowpri_delay);
-}