function::user_string_n(3stap) — Linux manual page

FUNCT...STRIN(3stap)  String and data retrieving fun FUNCT...STRIN(3stap)

NAME         top

       function::user_string_n - Retrieves string of given length from
       user space

SYNOPSIS         top

       1) user_string_n:string(addr:long,n:long)

       2) user_string_n:string(addr:long,n:long,err_msg:string)

ARGUMENTS         top

       addr
           the user space address to retrieve the string from

       n
           the maximum length of the string (if not null terminated)

       err_msg
           the error message to return when data isn't available

DESCRIPTION         top

       1) Returns the C string of a maximum given length from a given
       user space address. Reports an error on the rare cases when
       userspace data is not accessible at the given address.

       2) Returns the C string of a maximum given length from a given
       user space address. Returns the given error message string on the
       rare cases when userspace data is not accessible at the given
       address.

SEE ALSO         top

       tapset::uconversions(3stap)

SEE ALSO         top

       tapset::uconversions(3stap)

COLOPHON         top

       This page is part of the systemtap (a tracing and live-system
       analysis tool) project.  Information about the project can be
       found at ⟨https://sourceware.org/systemtap/⟩.  If you have a bug
       report for this manual page, send it to systemtap@sourceware.org.
       This page was obtained from the project's upstream Git repository
       ⟨git://sourceware.org/git/systemtap.git⟩ on 2025-08-11.  (At that
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       (which is not part of the original manual page), send a mail to
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SystemTap Tapset Reference      April 2025           FUNCT...STRIN(3stap)

Pages that refer to this page: tapset::uconversions(3stap)

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