Jul 20, 2023

Tool for encrypting and compacting C source code

CMUNGE is a simple tool for encrypting and compacting C source code, while leaving it syntactically and semantically unchanged. It does this by

  • Recursively in-lining `user-defined’ #include files.
  • Renaming C identifiers, except those in the C Standard Library, with names like l1 i.e. letter-l one, l2, l3, etc.
  • Removing comments and blank lines, converting multiple consecutive whitespace characters including `\n’ into single blanks, removing all unnecessary whitespace between tokens.
  • Outputting the transformed code in lines of least N characters long, where N is a user-specified minimum line length.

It accepts ANSI and K & R C as its input language.

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