#include "barev_sha1.h"
#include "sha1.h"

void barev_sha1_hex(const unsigned char *data, size_t len, char out_hex40[41]) {
  unsigned char digest[20];
  SHA1_CTX ctx;
  static const char hex[] = "0123456789abcdef";
  size_t i;

  SHA1Init(&ctx);
  SHA1Update(&ctx, data, (uint32_t)len);
  SHA1Final(digest, &ctx);

  for (i = 0; i < 20; ++i) {
    out_hex40[i * 2] = hex[(digest[i] >> 4) & 0x0F];
    out_hex40[(i * 2) + 1] = hex[digest[i] & 0x0F];
  }
  out_hex40[40] = '\0';
}