Talk:Nintendo DS Cart Whitelist

C representations

typedef struct {
	char ID[4];	// An ID
	unsigned char pad[0x84];
} sHNHA_Header;

typedef struct {
	char TID[4];	// Title ID
	unsigned long ver;	// Title version
	unsigned char SHA[2][20];	// the two SHA-1 sums
} sHNHA_Title;

typedef struct {
	unsigned char pad[0x18];
} sHNHA_Footer;

--Ludo6431 19:56, 5 August 2009 (UTC)

C dumper

void myprint(char *format, unsigned char *data, size_t datasize) {
	while(datasize--)
		printf(format, (unsigned char)*data++);
}

int main(int argc, char *argv[]) {
	if(argc!=2) exit(1);

	FILE *fd=fopen(argv[1], "rb");
	if(!fd) exit(1);

	sHNHA_Header header;
	sHNHA_Title title;
	sHNHA_Footer footer;

	fread(&header, 1, 0x88, fd);	// read the header
	printf("\nnumber of titles : %d", header.number);

	size_t count=header.number;
	while(count--) {		// read each title
		fread(&title, 1, sizeof(sHNHA_Title), fd);

		printf("\nTID=");
		myprint("%c", title.TID, 4);
		printf("\nver=%d", title.version);
		printf("\nSHA=");
		myprint("%02X", title.SHA[0], 20);
		printf("\nSHA=");
		myprint("%02X", title.SHA[1], 20);
	}

	fread(&footer, 1, sizeof(sHNHA_Footer), fd);	// read the footer

	if(fgetc(fd)!=EOF) printf("error");

	fclose(fd);
}

--Ludo6431 19:24, 5 August 2009 (UTC)