News

libmodbus 3.0.8 (2019-07-31) libmodbus 3.1.6 (2019-07-31) Fix awful typo in fix for VD-1301 vulnerability. Thank you Karl Palsson.

Many changes with fixes for vulnerabilities

Small fixes, Cygwin improvements and fix missing script in tarball

Many fixes and improvements on data mapping, float handling and RTS.

This new development release contains new features about server listening and timeout handling.

Many features and a remote buffer overflow vulnerability has been fixed.

OK last year, I’ve silently released libmodbus v3.1.0 and it’s never too late to announce it! libmodbus 3.1.0 (2012-05-22) Major changes to handle many slaves in RTU mode, non blocking connections and RTS flow control. Fixes for Microsoft Visual C++ compiler Fixes for Windows. Thanks to oldfaber Return value of _modbus_tcp_pi_connect() on failure (closes ) Avoid ioctl call on non-RS485 ports. Thanks to Michael Haberler Display node and service in PI and port in IPv4 at connection Return -1 on getaddrinfo error and print error in debug mode More robust way to establish the connection in non blocking mode TCP - Socket in non blocking mode by default. ... Read more …

autogen.sh creates symlinks instead of copies Add missing m4 directory (closes #103) Fix alignment problem on ARMv5 platform. Thanks to Alexander Dahl. Remove useless test on error_recovery argument. Thanks to Carlos Tangerino. Download libmodbus v3.0.4

This new bugfix release contains the following changes: Fix another Visual C++ 2008⁄2010 deficiency (closes #53) Add -lsocket to compile on QNX Fix TCP PI init under Windows. Thanks to oldfaber. Fix a missing free in random-test-client Thanks again to Stefan Finzel. Fix OMG bug in modbus_mapping_free not freeing memory. Thanks to Stefan Finzel for the bug report. Fix semicolon typo and unistd.h include under Windows. Thanks to Andrew Kravchuk. ... Read more …

The modbus library finds its way into the official repositories Fedora (packaged by Stéphane Raimbault), Debian and Ubuntu (packaged by Ivo De Decker). https://community.dev.fedoraproject.org/packages/libmodbus http://packages.debian.org/search?keywords=libmodbus http://packages.ubuntu.com/search?keywords=libmodbus Of course, we’ll happy to support other distributions! To improve the communication and ease the subscription process, the libmodbus project as moved from Launchpad list to Google Groups libmodbus@googlegroups.com. Update: Julien Boibessot integrated libmodbus into Buildroot.