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FUNCTION::USER_STRIN(3stap) String and data retrieving fun FUNCTION::USER_STRIN(3stap)

NAME

function::user_string - Retrieves string from user space

SYNOPSIS

1) user_string:string(addr:long)


2) user_string:string(addr:long,err_msg:string)

ARGUMENTS

addr
the user space address to retrieve the string from

err_msg

the error message to return when data isn't available

DESCRIPTION

1) Returns the null terminated C string from a given user space memory address. Reports an error on the rare cases when userspace data is not accessible.

2) Returns the null terminated C string from a given user space memory address. Reports the given error message on the rare cases when userspace data is not accessible.

SEE ALSO0

tapset::uconversions(3stap)
October 2018 SystemTap Tapset Reference