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

function::user_string_n_quoted
 

NAME

function::user_string_n_quoted - Retrieves and quotes string from user space

SYNOPSIS

    user_string_n_quoted:string(addr:long,n:long)

ARGUMENTS

addr
the user space address to retrieve the string from
n
the maximum length of the string (if not null terminated)

DESCRIPTION

Returns up to n characters of a C string from the given user space memory address where any ASCII characters that are not printable are replaced by the corresponding escape sequence in the returned string. Reports “NULL” for address zero. Returns “<unknown>” on the rare cases when userspace data is not accessible at the given address.
May 2013 SystemTap Tapset Reference