A simple command line tool and library to identify popular file types.

Nicko

A simple command line tool and portable library to identify popular file types.

Installation

$ make
$ [sudo] make install
$ nicko --help && nicko --version

After the installation the library will be installed in your local path (/usr/local):

1. /usr/local/lib/libnicko.a
2. /usr/local/include/nicko.h
3. /usr/local/bin/nicko
4. /usr/local/share/man1/nicko.1.gz

API

There is only 1 function to worry about:

int nicko(const char *filename, struct nicko_magic **p);

Example:

#include <stdio.h>

#include <nicko.h>

int main(void)
{
  struct nicko_magic *m = NULL;

  if (nicko("/usr/bin/pwd", &m) != 0)
    return 0;

  puts(m->name);

  if (m->type == NICKO_TYPE_ELF)
    puts("elf");
  else if (m->group == NICKO_GROUP_ARCHIVE)
    puts("in group archive.");

  return 0;

}

Compile with:

$ cc -o nicko-test nicko-test.c -lnicko

Read nicko.h for the full API it is well documented.

Command line

nicko(1) is also a command line tool (like file(1) but with less features).

It is desgiend for scripts, for example:

#!/usr/bin/bash

if [[ $(nicko -t /usr/bin/ls) == "elf" ]];then
    echo "Found binary: /usr/bin/ls"
fi

# More examples

if [[ $(nicko -g /home/user/tux.png) == "picture" ]];then
    # Set wallpaper
    ...
fi

Contributing

Contributions are welcome!

Credits

1. Wikipedia

License

Licensed under the ISC license.

Copyright (c) 2018 bindh3x <[email protected]>

Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.