Files
V2GDecoderC/Port/vc2022/hex_dump_to_binary.c
chiDT d5263abab0 feat: Perfect C# structure alignment with VC2022 for exact debugging
Major architectural refactoring to achieve 1:1 structural compatibility:

🏗️ **VC2022 Structure Replication**
- Iso1EXIDocument: 1:1 replica of VC2022 iso1EXIDocument struct
- DinEXIDocument: 1:1 replica of VC2022 dinEXIDocument struct
- Iso2EXIDocument: 1:1 replica of VC2022 iso2EXIDocument struct
- All _isUsed flags and Initialize() methods exactly matching VC2022

🔄 **VC2022 Function Porting**
- ParseXmlToIso1(): Exact port of VC2022 parse_xml_to_iso1()
- EncodeIso1ExiDocument(): Exact port of VC2022 encode_iso1ExiDocument()
- Choice 76 (V2G_Message) encoding with identical logic
- BulkChargingComplete ignore behavior preserved

 **Call Sequence Alignment**
- Old: EncodeV2GMessage() → direct EXI encoding
- New: EncodeV2GMessage() → Iso1EXIDocument → EncodeIso1ExiDocument()
- Exact VC2022 call chain: init → parse → encode → finish

🔍 **1:1 Debug Comparison Ready**
- C# exiDoc.V2G_Message_isUsed ↔ VC2022 exiDoc->V2G_Message_isUsed
- Identical structure enables line-by-line debugging comparison
- Ready for precise 1-byte difference investigation (41 vs 42 bytes)

📁 **Project Reorganization**
- Moved from csharp/ to Port/ for cleaner structure
- Port/dotnet/ and Port/vc2022/ for parallel development
- Complete build system and documentation updates

🎯 **Achievement**: 97.6% binary compatibility (41/42 bytes)
Next: 1:1 debug session to identify exact byte difference location

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-09-10 22:01:08 +09:00

78 lines
2.1 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
int hex_char_to_int(char c) {
if (c >= '0' && c <= '9') return c - '0';
if (c >= 'A' && c <= 'F') return c - 'A' + 10;
if (c >= 'a' && c <= 'f') return c - 'a' + 10;
return -1;
}
int main() {
// Extract EXI data starting from offset 0x0052 (after "80 98 02")
// The complete EXI data from the hex dump
const char* hex_string = "8098021050908c0c0c0e0c50d10032018600a01881ae0601860c806140c801030800006100001881980600";
size_t hex_len = strlen(hex_string);
if (hex_len % 2 != 0) {
printf("Error: Hex string length must be even\n");
return -1;
}
size_t binary_len = hex_len / 2;
unsigned char* binary_data = malloc(binary_len);
if (!binary_data) {
printf("Memory allocation failed\n");
return -1;
}
// Convert hex string to binary
for (size_t i = 0; i < binary_len; i++) {
int high = hex_char_to_int(hex_string[i * 2]);
int low = hex_char_to_int(hex_string[i * 2 + 1]);
if (high == -1 || low == -1) {
printf("Invalid hex character at position %zu\n", i * 2);
free(binary_data);
return -1;
}
binary_data[i] = (high << 4) | low;
}
// Write to file
FILE* file = fopen("test2.exi", "wb");
if (!file) {
printf("Cannot create output file\n");
free(binary_data);
return -1;
}
size_t written = fwrite(binary_data, 1, binary_len, file);
fclose(file);
free(binary_data);
if (written != binary_len) {
printf("Write error\n");
return -1;
}
printf("Successfully created test2.exi with %zu bytes\n", binary_len);
// Show first few bytes for verification
printf("First 16 bytes: ");
FILE* verify = fopen("test2.exi", "rb");
if (verify) {
for (int i = 0; i < 16 && i < binary_len; i++) {
int c = fgetc(verify);
printf("%02X ", c);
}
fclose(verify);
}
printf("\n");
return 0;
}