trezor-firmware/tools/xpubaddrgen.c

#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <inttypes.h>
#include <bip32.h>
#include <ecdsa.h>

void process_job(uint32_t jobid, const char *xpub, uint32_t change, uint32_t from, uint32_t to)
{
	HDNode node, child;
	if (change > 1 || to <= from || hdnode_deserialize(xpub, &node) != 0) {
		printf("%d error\n", jobid);
		return;
	}
	hdnode_public_ckd(&node, change);
	uint32_t i;
	char address[36];
	for (i = from; i < to; i++) {
		memcpy(&child, &node, sizeof(HDNode));
		hdnode_public_ckd(&child, i);
		ecdsa_get_address(child.public_key, 0, address, sizeof(address));
		printf("%d %d %s\n", jobid, i, address);
	}
}

int main(void)
{
	char line[1024], xpub[1024];
	uint32_t jobid, change, from, to;
	int r;
	for (;;) {
		if (!fgets(line, sizeof(line), stdin)) break;
		r = sscanf(line, "%u %s %u %u %u\n", &jobid, xpub, &change, &from, &to);
		if (r < 1) {
			printf("error\n");
		} else if (r != 5) {
			printf("%d error\n", jobid);
		} else {
			process_job(jobid, xpub, change, from, to);
		}
	}
	return 0;
}