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$Id: dwarf_seterrarg.3 3644 2018-10-15 19:55:01Z jkoshy $
.Dd May 01, 2010 .Dt DWARF_SETERRARG 3 .Os .Sh NAME .Nm dwarf_seterrarg , .Nm dwarf_seterrhand .Nd configure error handling .Sh LIBRARY .Lb libdwarf .Sh SYNOPSIS n libdwarf.h .Ft Dwarf_Ptr .Fn dwarf_seterrarg "Dwarf_Debug dbg" "Dwarf_Ptr arg" .Ft Dwarf_Handler .Fn dwarf_seterrhand "Dwarf_Debug dbg" "Dwarf_Handler handler" .Sh DESCRIPTION These functions may be used by applications to configure error handling callbacks. The error handling scheme used by the library is described in .Xr dwarf 3 .
p Function .Fn dwarf_seterrarg may be used to set the callback argument passed to a configured error handler at the time it is invoked. Argument .Ar arg is the callback argument being set. Argument .Ar dbg can be a debug context allocated by a prior call to .Xr dwarf_init 3 , or can be NULL to indicate that the library-wide callback argument is to be set.
p Function .Fn dwarf_seterrhand may be used to associate an error handler denoted by argument .Ar handler with the DWARF debug context descriptor denoted by argument .Ar dbg . Argument .Ar dbg should be a debug context allocated by a prior call to .Xr dwarf_init 3 , or may be NULL to indicate that the library-wide error handler is to be set. .Sh RETURN VALUES Function .Fn dwarf_seterrhand returns the previous error handler associated with argument .Ar dbg . If argument .Ar dbg is NULL, function .Fn dwarf_seterrhand returns the previous library-wide error handler.
p Function .Fn dwarf_seterrarg returns the previous callback argument associated with argument .Ar dbg . If argument .Ar dbg is NULL, function .Fn dwarf_seterrarg returns the previous library-wide callback argument. .Sh COMPATIBILITY The behavior of these functions when argument .Ar dbg is NULL is a local extension. .Sh ERRORS These functions do not set an error code. .Sh SEE ALSO .Xr dwarf 3 , .Xr dwarf_init 3