openssl.c

  sub[1]='\0';
  ssleay_value=SSLeay();
  if(ssleay_value < 0x906000) {
    ssleay_value=SSLEAY_VERSION_NUMBER;
    sub[0]='\0';
  }
  else {
    if(ssleay_value&0xff0) {
      int minor_ver = (ssleay_value >> 4) & 0xff;
      if(minor_ver > 26) {
        /* handle extended version introduced for 0.9.8za */
        sub[1] = (char) ((minor_ver - 1) % 26 + 'a' + 1);
        sub[0] = 'z';
      }
      else {
        sub[0]=(char)(((ssleay_value>>4)&0xff) + 'a' -1);
      }
    }
    else
      sub[0]='\0';
  }

  return snprintf(buffer, size, "%s/%lx.%lx.%lx%s",
                  OSSL_PACKAGE,
                  (ssleay_value>>28)&0xf,
                  (ssleay_value>>20)&0xff,
                  (ssleay_value>>12)&0xff,
                  sub);
#endif /* OPENSSL_IS_BORINGSSL */
}

/* can be called with data == NULL */
int Curl_ossl_random(struct SessionHandle *data, unsigned char *entropy,
                     size_t length)
{
  if(data) {
    Curl_ossl_seed(data); /* Initiate the seed if not already done */
  }
  RAND_bytes(entropy, curlx_uztosi(length));
  return 0; /* 0 as in no problem */
}

void Curl_ossl_md5sum(unsigned char *tmp, /* input */
                      size_t tmplen,
                      unsigned char *md5sum /* output */,
                      size_t unused)
{
  MD5_CTX MD5pw;
  (void)unused;
  MD5_Init(&MD5pw);
  MD5_Update(&MD5pw, tmp, tmplen);
  MD5_Final(md5sum, &MD5pw);
}

#if (OPENSSL_VERSION_NUMBER >= 0x0090800fL) && !defined(OPENSSL_NO_SHA256)
void Curl_ossl_sha256sum(const unsigned char *tmp, /* input */
                      size_t tmplen,
                      unsigned char *sha256sum /* output */,
                      size_t unused)
{
  SHA256_CTX SHA256pw;
  (void)unused;
  SHA256_Init(&SHA256pw);
  SHA256_Update(&SHA256pw, tmp, tmplen);
  SHA256_Final(sha256sum, &SHA256pw);
}
#endif

bool Curl_ossl_cert_status_request(void)
{
#if (OPENSSL_VERSION_NUMBER >= 0x0090808fL) && !defined(OPENSSL_NO_TLSEXT) && \
    !defined(OPENSSL_NO_OCSP)
  return TRUE;
#else
  return FALSE;
#endif
}
#endif /* USE_OPENSSL */