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41 lines
1.1 KiB
41 lines
1.1 KiB
# shuffle3 - 3 stage byte shuffler
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Deterministically and reversably shuffle a file's bytes around.
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## Shuffling
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Shuffle a file in place
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``` shell
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$ shuffle3 -s file
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```
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## Unshuffling
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Unshuffle a file in place
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``` shell
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$ shuffle3 -u file
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```
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## Other options
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Run with `--help` for more options.
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# Building
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Run `make` to build the normal binary. It will output to `shuffle3-release`.
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## Release target
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The `release` (default) target uses the variables `RELEASE_CFLAGS` and `RELEASE_LDFLAGS` to specify opitimisations. These can be set by you if you wish.
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### Note
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The default `RELEASE_CFLAGS` contains the flag `-march=native`. This may be underisable for you, in which case set the variable or modify the makefile to remove it.
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## Debug target
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To build with debug information, run `make debug`. Extra debug flags can be provided with the `DEBUG_CFLAGS` and `DEBUG_LDFLAGS` variables which have default values in the Makefile.
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The build and unstripped binary will be `shuffle3-debug`.
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## Notes
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Before switching between `release` and `debug` targets, remember to run `make clean`.
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# License
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GPL'd with <3
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