Definitions:
	valid safe file name:
		A valid file name is a file that contains no path components.
		Even if the provided file contains characters that would typically
		denote path components, it is to be treaded as a single filename.

	safe root:
		A safe root in this case is considered either:
			a) The current working directory of the running executable
			b) A list of valid directories provided in a read-only configuration file
				or a hard-coded list of directories inside the program itself
			c) A list of valid pairs consisting of a directory selector and
				target directory associated with said selector
	selector:
		A selector is a simple string that points to a valid directory entry.

	success code:
		A success code is implementation depended but for unices this is 0 in the shell.
		For C code or other programing languages, this can be either a boolean with
		the value 'true' or an integer with value 1, etc.
		Whatever the given language specifies as a success code should be returned.


Mode of operations for standalone programs:
	1) Process a valid [selector] and [filename] from STDIN
	2) Compare the given selector with the list of selector and directory pairs.
		if a match is found, continue, otherwise abort
	2) Create either a md5 or sha1 sum of the filename and compare it against the md5 or sha1 sum
		of all the files in the directory that matched the given [selector]
	3) If the sums match up, read and print the file to STDOUT
	4) Exit with [success code]


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