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#include <stdio.h> // printf()
#include <string.h> // strlen()
#include "sha256.h"
#include "tests.h"
static uint8_t dst[SHA256_HASH_SIZE];
static void print_hash(const uint8_t * const hash) {
for (size_t i = 0; i < SHA256_HASH_SIZE; i++) {
printf("%02x", hash[i]);
}
}
static void print_row(
const char * const src,
const uint8_t * const hash
) {
printf("\"%s\",", src);
print_hash(hash);
printf("\n");
}
static void on_test_fail(
const char * const src,
const uint8_t * const got_hash,
const uint8_t * const expected_hash
) {
printf("\"%s\",", src);
print_hash(got_hash);
printf(",");
print_hash(expected_hash);
printf("\n");
}
int main(int argc, char *argv[]) {
if (argc > 1) {
// if command-line parameters are given, then hash and print them
// instead of running the test vectors
for (int i = 1; i < argc; i++) {
const char * const src = argv[i];
sha256((const uint8_t *) src, strlen(src), dst);
print_row(src, dst);
}
} else {
// no command-line parameters given. run internal tests
printf("input,result,expected\n");
run_tests(on_test_fail);
}
return 0;
}
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