3DS Error Codes extractor

gistfile1.py

#!/usr/bin/python2

# Convert 3DS errors to readable format
# plutooo

import sys

descs = {
0: 'Success',
2: 'Invalid memory permissions (kernel)',
4: 'Invalid ticket version (AM)',
5: 'String too big? This error is returned when service name length is greater than 8. (srv)',
6: 'Access denied? This error is returned when you request a service that you don\'t have access to. (srv)',
7: 'String too small? This error is returned when service name contains an unexpected null byte. (srv)',
10: 'Not enough memory (os)',
26: 'Session closed by remote (os)',
37: 'Invalid NCCH? (AM)',
39: 'Invalid title version (AM)',
43: 'Database doesn\'t exist/failed to open (AM)',
44: 'Trying to uninstall system-app (AM)',
120: 'Title/object not found? (fs)',
141: 'Gamecard not inserted? (fs)',
230: 'Invalid open-flags / permissions? (fs)',
391: 'NCCH hash-check failed? (fs)',
392: 'RSA/AES-MAC verification failed? (fs)',
395: 'RomFS hash-check failed? (fs)',
630: 'Command not allowed / missing permissions? (fs)',
702: 'Invalid path? (fs)',
761: 'Incorrect read-size for ExeFS? (fs)',
1000: 'Invalid section',
1001: 'Too large',
1002: 'Not authorized',
1003: 'Already done',
1004: 'Invalid size',
1005: 'Invalid enum value',
1006: 'Invalid combination',
1007: 'No data',
1008: 'Busy',
1009: 'Misaligned address',
1010: 'Misaligned size',
1011: 'Out of memory',
1012: 'Not implemented',
1013: 'Invalid address',
1014: 'Invalid pointer',
1015: 'Invalid handle',
1016: 'Not initialized',
1017: 'Already initialized',
1018: 'Not found',
1019: 'Cancel requested',
1020: 'Already exists',
1021: 'Out of range',
1022: 'Timeout',
1023: 'Invalid result value'
}

mods = [
'Common', 'Kernel', 'Util', 'File server', 'Loader server', 'TCB', 'OS',
'DBG', 'DMNT', 'PDN', 'GX', 'I2C', 'GPIO', 'DD', 'CODEC', 'SPI', 'PXI', 'FS',
'DI', 'HID', 'CAM', 'PI', 'PM', 'PM_LOW', 'FSI', 'SRV', 'NDM', 'NWM', 'SOC',
'LDR', 'ACC', 'RomFS', 'AM', 'HIO', 'Updater', 'MIC', 'FND', 'MP', 'MPWL', 'AC',
'HTTP', 'DSP', 'SND', 'DLP', 'HIO_LOW', 'CSND', 'SSL', 'AM_LOW', 'NEX', 'Friends',
'RDT', 'Applet', 'NIM', 'PTM', 'MIDI', 'MC', 'SWC', 'FatFS', 'NGC', 'CARD', 'CARDNOR',
'SDMC', 'BOSS', 'DBM', 'Config', 'PS', 'CEC', 'IR', 'UDS', 'PL', 'CUP', 'Gyroscope',
'MCU', 'NS', 'News', 'RO', 'GD', 'Card SPI', 'EC', 'RO', 'Web Browser', 'Test',
'ENC', 'PIA'
]

summs = [
'Success', 'Nothing happened', 'Would block', 'Out of resource',
'Not found', 'Invalid state', 'Not supported', 'Invalid argument',
'Wrong argument', 'Canceled', 'Status changed', 'Internal'
]

if len(sys.argv) == 2:
    err = sys.argv[1].strip()
    if err.startswith("0x"):
        err = err[2:]
    rc = int(err, 16)
    desc  = rc & 0x3FF
    mod   = (rc >> 10) & 0xFF
    summ  = (rc >> 21) & 0x3F
    level = (rc >> 27) & 0x1F

    print('Module:')
    if mod >= 0 and mod < len(mods):
        print('  ' + mods[mod])
    else:
        print('  ' + 'Unknown')

    print('Description:')
    if desc in descs:
        print('  ' + descs[desc])
    else:
        print('  ' + 'Unknown %d' % desc)

    print('Summary:')
    if summ == 63:
        print('  ' + 'Invalid result value')
    elif summ >= 0 and summ < len(summs):
        print('  ' + summs[summ])
    else:
        print('  ' + 'Unknown %d' % summ)
    
    print('Level: ')
    print('  %d' % level)