v3l0c1r4pt0r / sadve

Quickly count define values, sizes and offsets from C code

SADVE

Extract value of C defines directly from command line

Prerequisites

• cmake - required for both building and using
• bash - min. version 4.0
• compiler that can be picked up by cmake (also for using, not only building)

Installation

git clone https://github.com/v3l0c1r4pt0r/sadve.git
cd sadve
mkdir -p build && cd build
cmake ..
make
sudo make install

Usage

To get value of define AF_INET, defined in header sys/socket.h, one can call:

sadve -d AF_INET sys/socket.h

Then to learn size of structure sockaddr as defined in sys/socket.h, use:

sadve -s sockaddr sys/socket.h

Full help text:

Usage: /usr/local/bin/sadve [--dec|--hex|--format=F] -d|-s|-u|-t|-e SYMBOL HEADER
       /usr/local/bin/sadve [--dec|--hex|--format=F] -o STRUCT.FIELD HEADER
       /usr/local/bin/sadve -h
        -d, --define    Print final value of preprocessor macro
        -s, --struct    Print total length of struct
        -u, --union     Print total length of union
        -t, --type      Print total length of type
        -e, --enum      Print total length of enum
        -o, --offset    Print offset of field in structure
        -I DIR          Appends DIR to search path of include files
            --dec       Print value in decimal form (default)
            --hex       Print value in hexadecimal form
            --format=F  Print value in F form, where F is format string as in
                          printf(3)
            --debug     Debug sadve itself
        -h, --help      Print this help message and exit
        SYMBOL          Symbol which value is to be examined
        HEADER          Header where symbol is defined

License

The program is licensed under GNU GPL v3.