codegen.c File Reference

Code synthesizer for bfdmux filters. More...

Functions
void	compile_filter (char *expression, uint8_t **filter_code, int32_t *filter_len)
	Compiles a filter expression in Bfdmux Filter Language into Bfdmux Intermediate Code. More...

Detailed Description

Code synthesizer for bfdmux filters.

This file provides functions to create byte code in Bfdmux Intermediate Language from filter strings. This byte code can be executed using the functions in vm.c to filter network packets.

Function Documentation

void compile_filter	(	char *	expression,
		uint8_t **	filter_code,
		int32_t *	filter_len
	)

Compiles a filter expression in Bfdmux Filter Language into Bfdmux Intermediate Code.

Parameters

	expression	the expression to compile
[out]	filter_code	Points to the memory buffer that contains the compiled filter, or NULL, if an error occurred
[out]	filter_len	Indicates the length of the compiled code, or contains the error position in the filter string on failure