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)
