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/
#ifndef DBUS_API_SUBJECT_TO_CHANGE
#define DBUS_API_SUBJECT_TO_CHANGE
#endif
#include <stdio.h>
#include <stdlib.h>
#include "purple-client.h"
/*
This example demonstrates how to use libpurple-client to communicate
with purple. The names and signatures of functions provided by
libpurple-client are the same as those in purple. However, all
structures (such as PurpleAccount) are opaque, that is, you can only
use pointer to them. In fact, these pointers DO NOT actually point
to anything, they are just integer identifiers of assigned to these
structures by purple. So NEVER try to dereference these pointers.
Integer ids as disguised as pointers to provide type checking and
prevent mistakes such as passing an id of PurpleAccount when an id of
PurpleBuddy is expected. According to glib manual, this technique is
portable.
*/
int main (int argc, char **argv)
{
GList *alist, *node;
purple_init();
alist = purple_accounts_get_all();
for (node = alist; node != NULL; node = node->next)
{
PurpleAccount *account = (PurpleAccount*) node->data;
char *name = purple_account_get_username(account);
g_print("Name: %s\n", name);
g_free(name);
}
g_list_free(alist);
return 0;
}