# Firmware extracts with string command

HARMONY.txt (firmware for a speaker/the harmony box, seems to be compressed or something only getting garbage from strings)

HARMONY-TRIO.txt (firmware for speaker with built in clock, unlike harmony seems to actually return partially usable data)

SIGMA-MASTER-CLOCK.txt is from the masterclock (kinda the heart of the system that shedules bing bongs etc)

What i scower for : 
- `CHK` or `CHK BAD`
- `checksum`, `crc`, `fletcher`, `xor`, `sum`, `verify`
- `traitement` (French for processing)
- `REP STREAM`, `REPIN`, `REPACK`, `REPOUT`
- `opcode`, `frame`, `trame` (French for frame)
- `F_` or `process_` function prefixes
- `validate`, `verify`, `compare`, `assert`
- `0x%04x`, `%04X`, `%04lx`, `%08X`, `%d/%d`, `%lx` (supposedly common checksum formatting)

what claude ai told me to also search : 
CHK or checksum
Direct checksum indicators
F_controle_CHK_protocole
Entry point for protocol checksum check
UI_i_lg_trame
Likely the message length used in calc
calcule, reçu, BAD
May show checksum comparison logic
F_charge_A_vars
Handles file loading with checksum
%04x, %08X, %d/%d, %lx



## Notes things from SIGMA-MASTER-CLOCK

```
*** failed ***
TEST DE PRODUCTION      
Microquartz Sigma  BODET
none
%d.%d.%d.%d
## Warning: gatewayip needed but not set
bad length %d < %d
invalid RARP header
len bad %d < %d
checksum bad
 ICMP Host Redirect to
 ```

Seems to decompress its actual image and start the thing not really what i need but interesting none the less : 
```
gzip compressed
%s %s %s (%s)
   Data Size:    %d Bytes = 
   Load Address: %08x
   Entry Point:  %08x
   Contents:
   Image %d: %8ld Bytes = 
Image at %08lX:
   Verifying Checksum ... 
   Bad Data CRC
## Checking Image at %08lx ...
   Bad Magic Number
   Bad Header Checksum
Booting ...             
## Booting image at %08lx ...
Unsupported Architecture 0x%x
Standalone Application
Wrong Image Type for %s command
   XIP %s ... 
   Uncompressing %s ... 
GUNZIP ERROR - must RESET board to recover
Unimplemented compression type %d
autostart
Can't boot image type %d
bootargs
## Transferring control to NetBSD stage-2 loader (at address %08lx) ...
## Transferring control to RTEMS (at address %08lx) ...
bootm
bootm   - boot application image from memory
[addr [arg ...]]
    - boot application image stored in memory
passing arguments 'arg ...'; when booting a Linux kernel,
'arg' can be the address of an initrd image
boot    - boot default, i.e., run 'bootcmd'
bootd
bootd   - boot default, i.e., run 'bootcmd'
iminfo
iminfo  - print header information for application image
addr [addr ...]
    - print header information for application image starting at
      address 'addr' in memory; this includes verification of the
      image contents (magic number, header and payload checksums)
imls
imls    - list all images found in flash
    - Prints information about all images found at sector
      boundaries in flash.
List of available devices:
%-8s %08x %c%c%c 
coninfo
coninfo - print console devices and information
Reset RTC...
Writting Error RTC... %d
RTC is not initialized !!!
```


ive seen d of d in other files too
```
[%d;%dm
 -> 
the -s option is meaningful only when verifying checksums
the -w option is meaningful only when verifying checksums
only one argument may be specified when using -c
Invalid format
%s: OK
%s: FAILED
WARNING: %d of %d computed checksums did NOT match
Couldnt close file %s
%s  %s
invalid mode `%s'
parents
f-i:i-f
mv: overwrite `%s'? 
unable to rename `%s'
non-
cannot remove `%s'
interactive
force
fiRr
cannot remove `.' or `..'
no files
```

probably not what we need but could be (might be dhcp though)
```
couldn't read on raw listening socket -- ignoring
message too short, ignoring
Truncated packet
unrelated/bogus packet
bad IP header checksum, ignoring
packet with bad UDP checksum received, ignoring
received bogus message (bad magic) -- ignoring
oooooh!!! got some!
```
^ oooooh got some ! (dont think that be written in a netbsd package but who knows)