test_base58.c

#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <openssl/sha.h>
#include "libbase58.h"

/* SHA256 callback for libbase58 */
static bool sha256_impl(void *digest, const void *data, size_t datasz)
{
    SHA256(data, datasz, digest);
    return true;
}

int main() {
    char b58[64];
    size_t b58sz;
    unsigned char bin[64];
    size_t binsz;

    /* Register SHA256 implementation for Base58Check */
    b58_sha256_impl = sha256_impl;

    /* Test 1: Encode empty string */
    printf("=== Encoding empty string ===\n");
    b58sz = sizeof(b58);
    if (b58enc(b58, &b58sz, "", 0)) {
        printf("Encoded: '%s' (length: %zu)\n", b58, b58sz - 1);
    } else {
        printf("Encoding failed\n");
    }

    /* Test 2: Decode empty string */
    printf("\n=== Decoding empty string ===\n");
    binsz = sizeof(bin);
    if (b58tobin(bin, &binsz, "", 0)) {
        printf("Decoded length: %zu\n", binsz);
    } else {
        printf("Decoding failed\n");
    }

    /* Test 3: Encode single null byte */
    printf("\n=== Encoding single null byte (\\x00) ===\n");
    b58sz = sizeof(b58);
    if (b58enc(b58, &b58sz, "\x00", 1)) {
        printf("Encoded: '%s' (length: %zu)\n", b58, b58sz - 1);
    } else {
        printf("Encoding failed\n");
    }

    /* Test 4: Base58Check encode empty string (version 0x00) */
    printf("\n=== Base58Check encode empty string (version 0x00) ===\n");
    b58sz = sizeof(b58);
    if (b58check_enc(b58, &b58sz, 0x00, "", 0)) {
        printf("Encoded: '%s' (length: %zu)\n", b58, b58sz - 1);
    } else {
        printf("Encoding failed\n");
    }

    /* Test 5: Decode "1Wh4bh" (Base58Check encoded empty string) */
    printf("\n=== Decoding '1Wh4bh' ===\n");
    binsz = sizeof(bin);
    memset(bin, 0xff, sizeof(bin));
    if (b58tobin(bin, &binsz, "1Wh4bh", 6)) {
        printf("Decoded length: %zu\n", binsz);
        printf("Decoded bytes: ");
        for (size_t i = 0; i < binsz; i++) {
            printf("%02x ", bin[i]);
        }
        printf("\n");
        printf("(version: %02x, payload: empty, checksum: %02x%02x%02x%02x)\n",
               bin[0], bin[1], bin[2], bin[3], bin[4]);
    } else {
        printf("Decoding failed\n");
    }

    return 0;
}