Client/Server Comm Lib for C/C++

C / C++ TCP and UDP socket library client / server component. Allows multiple servers and clients simultaneously. Create proxy, chat, file transfer, HTTP, SMTP, POP3, FTP and DNS client programs. 32 and 64-bit through Windows 10. Royalty free.
Client/Server Comm Lib for C/C++
Client/Server Comm Lib for C/C++ Screenshot
Version: 7.1
License: Free To Try $119.00
Operating System: Windows
Homepage: www.marshallsoft.com
Developed by: MarshallSoft Computing
C / C++ TCP and UDP socket library client / server component. Features of the library include:
  • Use to create both clients and servers.
  • Supports "one time" passwords.
  • Data and files can be encrypted and decrypted.
  • Supports using session keys.
  • Supports secure and private messaging.
  • Use with the MarshallSoft AES Encryption Library for strong encryption/decryption.
  • Create chat servers and clients.
  • Create client/server file transfer programs.
  • Create client programs to talk to TCP servers (POP3, IMAP, HTTP, FTP, SMTP, DNS, etc,).
  • Connect to a device by sending commands to its IP address.
  • Create SMTP proxy programs extracting a copy of all recipient addresses.
  • Create POP3 proxy programs that filter incoming email for Spam.
  • Create HTTP proxy used to filter content.
  • Send and receive data buffers or entire files.
  • Servers can handle multiple connections concurrently.
  • Allows multiple servers and clients to run simultaneously.
  • Can specify the maximum number of connections that the server will accept.
  • Supports both TCP and UDP protocols.
  • Includes multiple C/C++ example programs.
  • Does not depend on support libraries (calls to core Windows API functions only).
  • Royalty free distribution with your compiled application.
  • C source code is available.
  • Free technical support and updates for one year.
  • Fully functional evaluation version available.
  • Supports most C/C++ compilers: Microsoft, Borland, Watcom, LCC, GCC, Digital Mars.
  • Supports all versions of 32-bit and 64-bit Microsoft C/C++ and Visual Studio C/C++.
  • Includes 32-bit and 64-bit DLL files plus OBJ files for static linking.
  • Works with 32-bit and 64-bit Windows through Windows
What's New

Version 7.1: Fixed problem with cscFileCRC() and cscCryptoPutFileExt(). Added cscTestDotted(). Fixed problem in cscRelease(). Increased MAX_DATA_SIZE from 30000 to 50000 bytes. Added CSC_SET_SOCK_REUSE [to cscSetInteger()].

Version 7.0: Added new example programs that use AES (Advanced Encryption Standard);Fixed: cscCryptoGetFileExt & cscCryptoPutFileExt to use local file path;bug fixes and other enhancements.

Version 6.1.1: Fixed cscCreateUDP function; fixed vSock slot not being freed; changed cscResponse function; added cscReadSize function; added support for MinGW C compiler (gcc) and Microsoft Visual Studio 2010; added support to connect to a device by sending commands to it's TCP IP address

Version 6.1: Supports Win64; added functions to support UDP/IP; functions to compute data or file CRC, encrypt/decrypt packets and receive/transfer packets

Version 5.0: Encryption/decryption, significantly fast transfer of data & files.

Version 4.0: The capabilty of one program being able to accept clients on more than one port concurrently was added.

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