pidgin/pidgin

Add fuzzing support for some libpurple features
release-2.x.y
2021-06-24, Jordy Zomer <>
97c51d97d375
Add fuzzing support for some libpurple features

Testing Done:
Hi!

I built and tested all of these fuzzers for libpurple.

You can build them by first building pidgin/libpurple with `--enable-fuzzing` then going into `libpurple/tests` and run `make check`. After that you can run these fuzzers. With a dictionary if you want :)

for example:
```bash
$ ./fuzz_markup_strip_html -dict=dictionaries/html.dict
Dictionary: 465 entries
INFO: Seed: 2274862685
INFO: Loaded 1 modules (3 inline 8-bit counters): 3 [0x5a4ec0, 0x5a4ec3),
INFO: Loaded 1 PC tables (3 PCs): 3 [0x568ee8,0x568f18),
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
INFO: A corpus is not provided, starting from an empty corpus
#2 INITED cov: 2 ft: 2 corp: 1/1b exec/s: 0 rss: 30Mb
#1048576 pulse cov: 2 ft: 2 corp: 1/1b lim: 4096 exec/s: 524288 rss: 789Mb
#2097152 pulse cov: 2 ft: 2 corp: 1/1b lim: 4096 exec/s: 524288 rss: 792Mb
```

Best Regards,

Jordy Zomer

Reviewed at https://reviews.imfreedom.org/r/760/
Purple, Pidgin and Finch
========================
See AUTHORS and COPYRIGHT for the list of contributors.
libpurple is a library intended to be used by programmers seeking
to write an IM client that connects to many IM networks. It supports
XMPP among other protocols.
Pidgin is a graphical IM client written in C which uses the GTK+
toolkit.
Finch is a text-based IM client written in C which uses the ncurses
toolkit.
BUILD
=====
Read the 'INSTALL' file for more detailed directions.
These programs use the standard ./configure ; make. You need to use
gmake, BSD make probably won't work. Remember, run ./configure --help
to see what build options are available.
In order to compile Pidgin you need to have GTK+ 2.0 installed (as
well as the development files!). The configure script will fail if you
don't. If you don't have GTK+ 2.0 installed, you should install it
using your distribution's package management tools.
For sound support, you also need gstreamer 0.10 or higher. For
spellchecking support, you need libgtkspell (http://gtkspell.sf.net/).
Your distro of choice probably already includes these, just be sure to
install the development packages.
RUN
===
You should run 'make install' as root to make sure plugins and other files
get installed into locations they want to be in. Once you've done that,
you only need to run 'pidgin' or 'finch'.
To get started, simply add a new account.
If you come across a bug, please report it at: http://developer.pidgin.im
PLUGINS
=======
If you do not wish to enable the plugin support within Purple, run the
./configure script with the --disable-plugins option and recompile your
source code. This will prevent the ability to load plugins.
'make install' puts the plugins in $PREFIX/lib/purple (PREFIX being what
you specified when you ./configure'd - it defaults to /usr/local). Purple
looks for the plugins in that directory by default. Plugins can be installed
per-user in ~/.purple/plugins as well. Pidgin and Finch also look in
$PREFIX/lib/pidgin and $PREFIX/lib/finch for UI-specific, respectively.
To build a plugin from a .c file, put it in the plugins/ directory in
the source and run 'make filename.so', e.g. if you have the .c file
'kickass.c', put it in the plugins/ directory, and from that directory,
run 'make kickass.so'.