This patch adds some rudimentary tests for InodeWatcher. It tests the
basic functionality, but maybe there are corner cases I haven't caught.
Additionally, this is our first LibCore test. :^)
With the goal of centralizing all tests in the system, this is a
first step to establish a Tests sub-tree. It will contain all of
the unit tests and test harnesses for the various components in the
system.
This commit adds an implementation of memmem, using the Bitap text
search algorithm for needles smaller than 32 bytes, and a naive loop
search for longer needles.
We should only execute the filename verbatim if it contains a slash (/)
character somewhere. Otherwise, we need to look through the entries in
the PATH environment variable.
This fixes an issue where you could easily "override" system programs
by placing them in a directory you control, and then waiting for
someone to come there and run e.g "ls" :^)
Test: LibC/exec-should-not-search-current-directory.cpp
