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/
/**
* @file dbus-bindings.h Purple DBUS Bindings
* @ingroup core
*/
/* purple
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
*/
#ifndef _PURPLE_DBUS_BINDINGS_H_
#define _PURPLE_DBUS_BINDINGS_H_
#include <dbus/dbus.h>
#include <dbus/dbus-glib-lowlevel.h>
#include <glib.h>
#ifdef __cplusplus
extern "C" {
#endif
gint purple_dbus_pointer_to_id(gconstpointer node);
gpointer purple_dbus_id_to_pointer(gint id, PurpleDBusType *type);
gint purple_dbus_pointer_to_id_error(gconstpointer ptr, DBusError *error);
gpointer purple_dbus_id_to_pointer_error(gint id, PurpleDBusType *type,
const char *typename, DBusError *error);
#define NULLIFY(id) id = empty_to_null(id)
#define CHECK_ERROR(error) if (dbus_error_is_set(error)) return NULL;
#define PURPLE_DBUS_ID_TO_POINTER(ptr, id, type, error) \
G_STMT_START { \
ptr = (type*) purple_dbus_id_to_pointer_error \
(id, PURPLE_DBUS_TYPE(type), #type, error); \
CHECK_ERROR(error); \
} G_STMT_END
#define PURPLE_DBUS_POINTER_TO_ID(id, ptr, error) \
G_STMT_START { \
id = purple_dbus_pointer_to_id_error(ptr,error); \
CHECK_ERROR(error); \
} G_STMT_END
dbus_bool_t
purple_dbus_message_get_args (DBusMessage *message,
DBusError *error,
int first_arg_type,
...);
dbus_bool_t
purple_dbus_message_get_args_valist (DBusMessage *message,
DBusError *error,
int first_arg_type,
va_list var_args);
dbus_bool_t
purple_dbus_message_iter_get_args (DBusMessageIter *iter,
DBusError *error,
int first_arg_type,
...);
dbus_bool_t
purple_dbus_message_iter_get_args_valist (DBusMessageIter *iter,
DBusError *error,
int first_arg_type,
va_list var_args);
dbus_int32_t* purple_dbusify_GList(GList *list, gboolean free_memory,
dbus_int32_t *len);
dbus_int32_t* purple_dbusify_GSList(GSList *list, gboolean free_memory,
dbus_int32_t *len);
gpointer* purple_GList_to_array(GList *list, gboolean free_memory,
dbus_int32_t *len);
gpointer* purple_GSList_to_array(GSList *list, gboolean free_memory,
dbus_int32_t *len);
GHashTable *purple_dbus_iter_hash_table(DBusMessageIter *iter, DBusError *error);
const char* empty_to_null(const char *str);
const char* null_to_empty(const char *s);
typedef struct {
const char *name;
const char *parameters;
DBusMessage* (*handler)(DBusMessage *request, DBusError *error);
} PurpleDBusBinding;
void purple_dbus_register_bindings(void *handle, PurpleDBusBinding *bindings);
DBusConnection *purple_dbus_get_connection(void);
#ifdef __cplusplus
}
#endif
#endif