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/*
* 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(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(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(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(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:
*/
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