'\" t
.\"     Title: function::user_string
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: May 2021
.\"    Manual: String and data retrieving functions Tapset
.\"    Source: SystemTap Tapset Reference
.\"  Language: English
.\"
.TH "FUNCTION::USER_STRIN" "3stap" "May 2021" "SystemTap Tapset Reference" "String and data retrieving fun"
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.SH "NAME"
function::user_string \- Retrieves string from user space
.SH "SYNOPSIS"
.sp
.nf
1) user_string:string(addr:long)
.fi
.sp
.nf
2) user_string:string(addr:long,err_msg:string)
.fi
.SH "ARGUMENTS"
.PP
\fIaddr\fR
.RS 4
the user space address to retrieve the string from
.RE
.PP
\fIerr_msg\fR
.RS 4
the error message to return when data isn\*(Aqt available
.RE
.SH "DESCRIPTION"
.PP
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\&.
.PP
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\&.
.SH SEE ALSO\n 
.IR tapset::uconversions (3stap)
.SH SEE ALSO\n 
.IR tapset::uconversions (3stap)