You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
1.8 KiB
73 lines
1.8 KiB
/*
|
|
* Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com)
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#include "linux/sched.h"
|
|
#include "asm/uaccess.h"
|
|
|
|
int copy_from_user_tt(void *to, const void __user *from, int n)
|
|
{
|
|
if(!access_ok_tt(VERIFY_READ, from, n))
|
|
return(n);
|
|
|
|
return(__do_copy_from_user(to, from, n, ¤t->thread.fault_addr,
|
|
¤t->thread.fault_catcher));
|
|
}
|
|
|
|
int copy_to_user_tt(void __user *to, const void *from, int n)
|
|
{
|
|
if(!access_ok_tt(VERIFY_WRITE, to, n))
|
|
return(n);
|
|
|
|
return(__do_copy_to_user(to, from, n, ¤t->thread.fault_addr,
|
|
¤t->thread.fault_catcher));
|
|
}
|
|
|
|
int strncpy_from_user_tt(char *dst, const char __user *src, int count)
|
|
{
|
|
int n;
|
|
|
|
if(!access_ok_tt(VERIFY_READ, src, 1))
|
|
return(-EFAULT);
|
|
|
|
n = __do_strncpy_from_user(dst, src, count,
|
|
¤t->thread.fault_addr,
|
|
¤t->thread.fault_catcher);
|
|
if(n < 0) return(-EFAULT);
|
|
return(n);
|
|
}
|
|
|
|
int __clear_user_tt(void __user *mem, int len)
|
|
{
|
|
return(__do_clear_user(mem, len,
|
|
¤t->thread.fault_addr,
|
|
¤t->thread.fault_catcher));
|
|
}
|
|
|
|
int clear_user_tt(void __user *mem, int len)
|
|
{
|
|
if(!access_ok_tt(VERIFY_WRITE, mem, len))
|
|
return(len);
|
|
|
|
return(__do_clear_user(mem, len, ¤t->thread.fault_addr,
|
|
¤t->thread.fault_catcher));
|
|
}
|
|
|
|
int strnlen_user_tt(const void __user *str, int len)
|
|
{
|
|
return(__do_strnlen_user(str, len,
|
|
¤t->thread.fault_addr,
|
|
¤t->thread.fault_catcher));
|
|
}
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* Emacs will notice this stuff at the end of the file and automatically
|
|
* adjust the settings for this buffer only. This must remain at the end
|
|
* of the file.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-file-style: "linux"
|
|
* End:
|
|
*/
|
|
|