X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/6601e61aa18bf4f09af135ff61fc7f4771d23b06..HEAD:/bsd/dev/i386/stubs.c?ds=sidebyside diff --git a/bsd/dev/i386/stubs.c b/bsd/dev/i386/stubs.c index 5a15de0ea..aeb74b11f 100644 --- a/bsd/dev/i386/stubs.c +++ b/bsd/dev/i386/stubs.c @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2006 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 + * @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 OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. - * - * @APPLE_LICENSE_HEADER_END@ + * 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@ */ /* * Copyright (c) 1997 by Apple Computer, Inc., all rights reserved @@ -37,14 +43,9 @@ #include #include #include +#include -/* 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. @@ -57,25 +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 @@ -88,79 +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); -}