> - Has someone written some "standard" code to decode and display the values
> from bitfields?
Decode and display in what fashion?
I have some code that can, for example, decode the "type of service"
bits in an IP header as
Type of service: 0x00
000. .... = routine precedence
...0 .... = normal delay
.... 0... = normal throughput
.... .0.. = normal reliability
.... ..0. = normal cost
(along the lines of what "snoop", Microsoft Network Monitor, and
possibly other packet-capture-and-display programs do) but, as the
detail display pane currently uses a variable-width font, it doesn't
look very good.
Does anybody have any objection to making the detail pane use a
fixed-width font?
(It consists of routines to decode "boolean", "enumerated", and
"numeric" bit fields; they take, as arguments:
the number that contains the bitfield;
a bitmask specifying which bits are in the bitfield;
the width, in bits, of the number that contains the bitfield
(typically 8, 16, or 32, but could be different);
and various values that tell it how to decode the bitfield:
for Boolean, strings that indicate what it means if the bit is
on and what it means if the bit is off;
for enumerated, a "value_string" array giving names to the
various values;
for numeric, a format string;
and generate a string with the 0/1/. stuff, the "=", and the
description. You make one call per bitfield.)
