jamchamb
/ arm_zimg_extend.py
Last active
May 30, 2025 10:50
https://jamchamb.net/2022/01/02/repack-compressed-initramfs.html
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| #!/usr/bin/env python3 | |
| import argparse | |
| import struct | |
| # little endian, 32-bit words | |
| # Could check for magic 0x01020304 / 0x04030201 to determine endianness | |
| ENDI = '<' | |
| WORD_PAT = ENDI + 'I' | |
| WORD_SZ = struct.calcsize(WORD_PAT) |
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| #include <stdio.h> | |
| void DumpHex(const void* data, size_t size) { | |
| char ascii[17]; | |
| size_t i, j; | |
| ascii[16] = '\0'; | |
| for (i = 0; i < size; ++i) { | |
| printf("%02X ", ((unsigned char*)data)[i]); | |
| if (((unsigned char*)data)[i] >= ' ' && ((unsigned char*)data)[i] <= '~') { | |
| ascii[i % 16] = ((unsigned char*)data)[i]; |