suse man page for strlen_user

STRLEN_USER(9)						    Memory Management in Linux						    STRLEN_USER(9)

NAME
       strlen_user - Get the size of a string in user space.

SYNOPSIS
       strlen_user(str);

ARGUMENTS
       str
	   The string to measure.

CONTEXT
       User context only. This function may sleep.

DESCRIPTION
       Get the size of a NUL-terminated string in user space.

       Returns the size of the string INCLUDING the terminating NUL. On exception, returns 0.

       If there is a limit on the length of a valid string, you may wish to consider using strnlen_user instead.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010							    STRLEN_USER(9)