# OpenRG Image Parser

OpenRG has a custom image file format, with headers and compression and config files. This utility extracts files from flat OpenRG images. It uses `mmap`'d IO to be fast, and validates checksums. It's also a decent piece of reference code for doing other things with OpenRG files.

### Usage

	$ make
	cc -march=native -O3 -std=c99 -pipe -fomit-frame-pointer  -lz  image-parser.c   -o image-parser
	
	$ ./image-parser /dev/mtdblock0
	==== rg_conf (Valid Checksum) ====
	Length: 12130 bytes
	Decompressed Length: 121178 bytes
	Saving to: 0x01030000-rg_conf
	
	==== rg_conf (Valid Checksum) ====
	Length: 13120 bytes
	Decompressed Length: 132110 bytes
	Saving to: 0x01090000-rg_conf