BIO_C_FILE_SEEK
case BIO_C_FILE_SEEK:
case BIO_C_FILE_SEEK:
case BIO_C_FILE_SEEK:
case BIO_C_FILE_SEEK:
case BIO_C_FILE_SEEK:
#define BIO_seek(b, ofs) (int)BIO_ctrl(b, BIO_C_FILE_SEEK, ofs, NULL)