int n;
  size_t rc = 0;
  SslServerConn *pServer = (SslServerConn*)pServerArg;
  if( nBuf>0x7fffffff ){ fossil_fatal("SSL read too big"); }
  else if( BIO_eof(pServer->bio) ) return 0;
  while( nBuf!=rc ){
    n = SSL_read(pServer->ssl, zBuf + rc, (int)(nBuf - rc));
#ifdef _WIN32
    /* Windows (XP and 10 tested with openssl 1.1.1m and 3.0.1) does
    ** not require reading in a loop, returning all data in a single
    ** call. If we read in a loop on Windows, SSL reads fail. Details:
    ** https://fossil-scm.org/forum/forumpost/2f818850abb72719 */
    rc += n;
    break;
#else
    if( n==0 ){
      break;
    }else if(n>0){
      rc += n;
    }else{
      fossil_fatal("SSL read error.");
    }
#ifdef _WIN32
    /* Windows (XP and 10 tested with openssl 1.1.1m and 3.0.1) does
    ** not require reading in a loop, returning all data in a single
    ** call. If we read in a loop on Windows, SSL reads fail. Details:
    ** https://fossil-scm.org/forum/forumpost/2f818850abb72719 */
    break;
#endif
  }
  return rc;
}

/*
** Read a single line of text from the client.