Hillstone Software, supplier of Communications and Network Protocol Software Development Services and products

By: Hillstone Software  05/12/2011
Keywords: windows, Software Development, libraries

Network Protocol Libraries and Components

Communication Libraries and Components

Encryption Libraries and Components

Communication Software / Network Software

Business Software / Productivity Software

HS X.25 is a software library in C (supplied with full source code) which implements ITU-T recommendation X.25 - Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for terminals operating in the packet mode and connected to public data networks by dedicated circuit and RFC1613 Cisco Systems X.25 over TCP (XOT)

Key Featues: DTE / DCE mode, RFC1613 XOT, Up to 4095 SVC (switched virtual circuits), user facilities, call user data, incoming and outgoing calls, Q, M, D bit, flow control, expedited data, statistics, packet trace

HS SMTP is a software library (supplied with full ANSI C source code) implements the client side of Simple Mail Transfer Protocol (SMTP) over TCP socket layer according to RFC 821. Supports transfer of basic message header, text and file attachments

From version 1.1, HS SMTP supports ESMTP extension for LOGIN Authentication using Base64 encoding and message sending to multiple recipients from address list. From version 1.2 HS SMTP supports sending binary file attachments using MIME version 1.0 base64 encoding

HS SMTP supports secure SMTP over TLS / SSL using RFC 3207


HS POP3 is a software library in C (supplied with full source code) which implements the client side of Post Office Protocol Version 3 (POP3) over TCP socket layer according to RFC 1939. Among other features, the library supports user authentication, reception of basic internet headers and text, message deletion and statistics.

HS POP3 supports extracting binary file attachments in MIME v1.0 base64 format.

HS POP3 supports secure POP3 over TLS / SSL using two methods: POP3S (used by Gmail) and RFC 2595


HS TFTP is a software library in C which implements Trivial File Transfer Protocol (TFTP) over UDP socket layer according to RFC 1350.

Both client and server features of the protocol are supported.

TFTP is often used in embedded devices for download / upload of configuration, logs and firmware over ethernet (UDP/IP) as an alternative to commonly used XMODEM over serial RS232 ports

HS TFTP .NET class library is a .NET component which implements TFTP server and client functionality over UDP socket layer according to RFC 1350 (Trivial File Transfer Protocol). HS TFTP .NET is designed for use from Visual C# .NET (C Sharp).


HS FTP is a software library in C which implements the client side of the File Transfer Protocol over TCP socket layer according to RFC 959. HS FTP Library is offered with full source code in C language.

The library allows a user application to connect to remote FTP servers, traverse server directory structure, send, receive, delete and rename files, create, remove and rename folders. The HS FTP protocol module supports passive mode data connections, user / password authentication and many FTP commands sequences:

USER, PASS, TYPE, PASV, LIST, CWD, MKD, RMD, RETR, STOR, DELE, NOOP, PWD, RNFR, RNTO. HS FTP also supports recursive download, upload and delete of folder with all files and sub-folders. There are functions for configuration and statistics.


HsFtpWM is a software library for Windows Mobile OS. It is written in C and implements the client side of the File Transfer Protocol over TCP socket layer according to RFC 959.

HS FTP Library is offered with full source code in C language, it includes C Library binaries and C Demo applications with source code, built from Microsoft Visual Studio 2005 for Windows Mobile OS, plus HS FTP programming manual.

The library allows a user application to connect to remote FTP servers, traverse server directory structure, send, receive, delete and rename files, create, remove and rename folders. The HS FTP protocol module supports passive mode data connections, user / password authentication and many FTP commands sequences:

USER, PASS, TYPE, PASV, LIST, CWD, MKD, RMD, RETR, STOR, DELE, NOOP, PWD, RNFR, RNTO.

HsCipherSDK is an Encryption Library providing an API to a suite of symmetric key cryptographic algorithms and one way hash digital signature algorithms. The library includes the following block and stream cipher modules: AES, DES, 3DES, ARC4, CAST-128, Blowfish, Twofish, MD5, SHA-1, SHA-256.

HsCipherSDK includes Standard DLL and ActiveX DLL for use from Visual C++, Visual Basic or other languages, code examples, documentation.

HsCipherSDK Company Source Code License edition includes full source code in Viusal C++ (ANSI C Style).

HsTCPIPv4 is a suite of cross platform ANSI C source code libraries which fully implement TCP IP protocol. HsTCPIPv4 as a whole or any of its included components can be used in an embedded system or on PC. HsTCPIPv4 is supplied with full ANSI C source code and binaries.

HsTCPIPv4 has been tested on both Little-endian (Intel x86) and Big-endian (Freescale / Motorola PowerQUICC) memory architectures.

Includes C source code for ARP, IP, ICMP, UDP, TCP, DHCP / BOOTP, DNS, TFTP, FTP, NTP / SNTP, POP3, SMTP.


HsSmsDll is a secure SMS Dynamic Link Library (with integrated encryption) for use from C, C++, VB and C#.NET applications.

HsSmsDll enables applications to send, receive, read and delete SMS messages via a GSM modem attached to PC COM port, supporting selected features of standards GSM 07.05 (ETS 300 585) and GSM 03.40.

HS SMS DLL includes integrated encryption which can be optionally used to encrypt and decrypt SMS text using AES, DES, 3DES, ARC4, CAST128, Blowfish or Twofish.

HS XMODEM is a software library in C (supplied with full source code) that provides a programmer with the off-the-shelf support for XMODEM protocol data transfer capability.

Support for both sender and receiver are provided.

Other features include 1024 block size vs 128, CRC vs checksum, configurable timers and retries.

HsGpsDll is a Windows Dynamic Link Library which provides access to any NMEA-183 compliant GPS receiver via a serial communications port.

HsGpsDll is designed for use from Visual C, Visual Basic or other programming languages, capable of calling DLL functions.

HsGpsDll allows a user application to easily read from a GPS device the current GPS position fix and current velocity over ground (speed in kilometers per hour).

GPS position fix obtained via HsGpsDll contains: Latitude coordinate, Longitude coordinate, Fix quality, Number of satellites in view).


HS COM is a serial communication library implemented in C language. HS COM currently runs on Windows.

HS COM serves as an interface layer beetween applications and low level Windows serial communication API.

HS COM allows applications communicate with any device presented in the OS as a COM port. The physical interface may in be RS232, USB, IRDA, Bluetooth, etc.

HS COM supports working concurrently with 100 COM ports (COM1 to COM100)


HS NTP is a software library in C (supplied with full source code) which implements the client side of Network Time Protocol (NTP) over UDP socket layer according to RFC1769 and RFC1305. HS NTP Library allows a user application to synchronize local system time to remote NTP server time.


HS Sockets is a C source code library for interfacing to network socket layer. HS Sockets runs on Windows desktop OS (XP,Vista,7), Windows Mobile OS and on Linux OS. HS Sockets is supplied with full C source code and binaries for these platforms

HS DHCP is a DHCP Server library implemented in C language. HS DHCP implements the server part of DHCP as per RFC 2131. The HS DHCP product delivery includes a simple DHCP Server application (HsDhcpSrv) for Windows using HS DHCP C source library

The Dynamic Host Configuration Protocol (DHCP) is an autoconfiguration protocol used on IP networks. Computers that are connected to IP networks must be configured before they can communicate with other computers on the network. DHCP allows a computer to be configured automatically, eliminating the need for intervention by a network administrator. It also provides a central database for keeping track of computers that have been connected to the network. This prevents two computers from accidentally being configured with the same IP address

HS MSG is a C/C++ messaging library (message oriented middleware) for communication between threads of the same process and between different processes on the same or on different computers. HS MSG C/C++ messaging SDK runs on Windows, Linux, MAC OSX, iPhone iOS

Simple C interface for message sending and reception

Message reception asynchronously (poll method) using HsMsgPollQueue()

Message sending asynchronously (HsMsgPostMessage()) or synchronously (HsMsgSendMessage())

Capability to send and receive messages containing large data buffers (segmentation, re-assembly re-transmissions are handled by internal protocol)

Cross platform C library for Windows, Unix/Linux, MAC OS X, iOS

C Source code suitable for porting to embedded devices

HsTcp2Com is a communications application for Windows which allows to forward / bridge data between serial ports (RS232, bluetooth, IrDA, USB) represented as COM ports and TCP/IP connections or UDP/IP links.

In the simplest scenario it is an COM port to TCP/IP converter, but it can bridge data between any combination of COM and UDP or TCP ports, with TCP ports in either client or server modes.

HsTftpCE is a TFTP application for Pocket PC running Windows Mobile 5 OS. HsTftpCE implements Trivial File Transfer Protocol (TFTP) over UDP socket layer according to RFC 1350 and supports client and server file send and receive operations.

HsTftpCE enables user to transfer files between Pocket PC PDA or Smart phone and desktop PC or any other equipment using TFTP protocol over IP network.

Invoice Manager is invoicing and billing software for small business and sole traders. It allows a user to issue, print and save professional invoices, credit notes, account statements, price lists, control product stock, print company logo and custom notes on invoices, grid lines and so on.


Keywords: File Transfer Protocol, libraries, Network Protocol, Network Protocol Software, Socket Layer, Software Development, software development services, windows,

Other products and services from Hillstone Software

05/12/2011

Hillstone Software, supplier of Communication and Network Protocol Software Development Services and products

Whether you are starting a new project or seeking a software development sub-contractor for a part of existing project, we offer full software development cycle including definition of requirements, software design, coding, unit testing, documentation, code maintenance and technical support. Hillstone Software offers software development and consultancy services to technology, telecommunications and electronics companies in around the world.