Merge pull request #610 from josephbisch/fe-fuzz

Add frontend for fuzzing

src/Makefile.am

@@ -6,6 +6,10 @@ if BUILD_IRSSIBOT
 BOTUI=fe-none
 endif
 
+if BUILD_IRSSIFUZZER
+FUZZERUI=fe-fuzz
+endif
+
 if HAVE_PERL
 PERLDIR=perl
 endif
@@ -14,4 +18,4 @@ pkginc_srcdir=$(pkgincludedir)/src
 pkginc_src_HEADERS = \
 	common.h
 
-SUBDIRS = lib-config core irc fe-common $(PERLDIR) $(TEXTUI) $(BOTUI)
+SUBDIRS = lib-config core irc fe-common $(PERLDIR) $(TEXTUI) $(BOTUI) $(FUZZERUI)

src/fe-fuzz/Makefile.am

@@ -0,0 +1,25 @@
+bin_PROGRAMS = irssi-fuzz
+
+# Force link with clang++ for libfuzzer support
+CCLD=clang++ $(CXXFLAGS)
+
+AM_CPPFLAGS = \
+	-I$(top_srcdir)/src \
+	-I$(top_srcdir)/src/core/ \
+	-I$(top_srcdir)/src/irc/core/ \
+	-I$(top_srcdir)/src/fe-common/core/ \
+	$(GLIB_CFLAGS)
+
+irssi_fuzz_DEPENDENCIES = @COMMON_LIBS@
+
+irssi_fuzz_LDADD = \
+	@COMMON_LIBS@ \
+	@PROG_LIBS@ \
+	$(FUZZER_LIBS)
+
+irssi_fuzz_SOURCES = \
+        irssi.c \
+	$(top_srcdir)/src/fe-text/module-formats.c
+
+noinst_HEADERS = \
+	$(top_srcdir)/src/fe-text/module-formats.h

src/fe-fuzz/irssi.c

@@ -0,0 +1,57 @@
+/*
+ irssi.c : irssi
+
+    Copyright (C) 2017 Joseph Bisch
+
+    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 02110-1301 USA.
+*/
+
+#include "module.h"
+#include "modules-load.h"
+#include "levels.h"
+#include "../fe-text/module-formats.h" // need to explicitly grab from fe-text
+#include "themes.h"
+#include "core.h"
+#include "fe-common-core.h"
+#include "args.h"
+#include "printtext.h"
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+int LLVMFuzzerInitialize(int *argc, char ***argv) {
+	core_register_options();
+	fe_common_core_register_options();
+	/* no args */
+	args_execute(0, NULL);
+	core_preinit((*argv)[0]);
+	core_init();
+	fe_common_core_init();
+	theme_register(gui_text_formats);
+	module_register("core", "fe-fuzz");
+	printtext_string(NULL, NULL, MSGLEVEL_CLIENTCRAP, "init");
+	return 0;
+}
+
+int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+	char *copy = (char *)malloc(sizeof(char)*(size+1));
+	memcpy(copy, data, size);
+	copy[size] = '\0';
+	printtext_string(NULL, NULL, MSGLEVEL_CLIENTCRAP, copy);
+	free(copy);
+	return 0;
+}

src/fe-fuzz/tokens.txt

@@ -0,0 +1,143 @@
+"@%+"
+"*@*!*"
+"001"
+"002"
+"003"
+"004"
+"005"
+"221"
+"254"
+"271"
+"272"
+"281"
+"301"
+"302"
+"303"
+"305"
+"306"
+"311"
+"312"
+"313"
+"314"
+"315"
+"317"
+"318"
+"319"
+"324"
+"326"
+"327"
+"328"
+"329"
+"330"
+"332"
+"333"
+"338"
+"341"
+"344"
+"345"
+"346"
+"347"
+"348"
+"349"
+"352"
+"353"
+"364"
+"365"
+"366"
+"367"
+"368"
+"369"
+"372"
+"375"
+"376"
+"377"
+"378"
+"379"
+"381"
+"386"
+"387"
+"388"
+"389"
+"396"
+"401"
+"403"
+"404"
+"405"
+"407"
+"408"
+"410"
+"421"
+"422"
+"433"
+"436"
+"437"
+"438"
+"439"
+"442"
+"465"
+"470"
+"471"
+"472"
+"473"
+"474"
+"475"
+"476"
+"477"
+"478"
+"479"
+"482"
+"486"
+"489"
+"494"
+"506"
+"707"
+"716"
+"717"
+"728"
+"729"
+"902"
+"903"
+"904"
+"905"
+"906"
+"907"
+":a"
+"+a"
+"ACK"
+"authenticate"
+"away"
+"-b"
+"+b"
+"cap"
+"#chan"
+"connected"
+"empty"
+"error"
+"invite"
+"join"
+"kick"
+"kill"
+"LS"
+"mode"
+"multi-prefix"
+"NAK"
+"network"
+"nick"
+"nicklen"
+"notice"
+"-o"
+"+o"
+"part"
+"ping"
+"pong"
+"prefix"
+"privmsg"
+"quit"
+"sasl"
+"topic"
+"wallops"
+"watch"
+":\x01"
+":\x01ACTION"
+":\x01PING"
+":\x01VERSION"