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Add option -x to print reference in hexadecimal format#90

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ciakval wants to merge 1 commit intoepsilonrt:masterfrom
ciakval:hex-addresses
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Add option -x to print reference in hexadecimal format#90
ciakval wants to merge 1 commit intoepsilonrt:masterfrom
ciakval:hex-addresses

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@ciakval
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@ciakval ciakval commented Nov 18, 2024

When device documentation uses hexadecimal format to describe available registers, it is nice to be able to use them on the command-line as well and to have them printed in the output the same way.

This PR adds the -x command-line option that changes the displayed reference format from decimal to hexadecimal.

Signed-off-by: Jan Remes <jan.remes@mycroftmind.com>
zknpr added a commit to zknpr/mbpoll that referenced this pull request Feb 6, 2026
## Security Fixes
- Fix memory leak: piStartRef was not freed in cleanup paths
- Add NULL checks after all malloc/calloc calls to prevent crashes
- Add compiler security flags: -fstack-protector-strong, -D_FORTIFY_SOURCE=2, -Wformat-security

## Code Modernization
- Modernize CMakeLists.txt with proper Release/Debug build separation
- Use target-based CMake properties instead of global definitions
- Add -Wpedantic flag (with exception for 3rdparty getopt code)
- Update copyright years to 2015-2025
- Update libmodbus minimum version to 3.1.7
- Translate all French comments to English

## Community PR Integration
- Implement PR epsilonrt#87: Check modbus_set_slave() return value to prevent crashes with invalid slave addresses (credit: @r00t-)
- Implement PR epsilonrt#90: Add -x option to print register addresses in hexadecimal format (credit: @ciakval)
- Implement PR epsilonrt#99: Add -Q and -X options for libmodbus quirks (MAX_SLAVE and REPLY_TO_BROADCAST) (credit: @JesseRiemens)

## New Features
- `-x` Print address (reference) in hexadecimal format
- `-Q` Enable MAX_SLAVE quirk (accept slave id 0-255)
- `-X` Enable REPLY_TO_BROADCAST quirk (send reply to broadcast)

## CI/CD
- Add GitHub Actions workflow for automated builds on Linux, macOS, and Windows

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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fix by #100

@epsilonrt epsilonrt closed this Feb 10, 2026
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