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Add frontend for fuzzing

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Use the following configure command:

$ ./configure --with-fuzzer --with-fuzzer-lib=/path/to/libFuzzer.a \
      CC=clang CXX=clang++

Places an irssi-fuzz in src/fe-fuzz/ after build.

Also can specify SANFLAGS to override the chosen sanitizer flags
(defaults to "-g -fsanitize=address -fsanitize-coverage=trace-pc-guard").
This commit is contained in:
Joseph Bisch 2017-01-07 20:01:07 -05:00
parent 7c09b72a26
commit cf46907256
No known key found for this signature in database
GPG Key ID: CF08FAC339AB7E8E
8 changed files with 415 additions and 1 deletions
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4
.gitignore vendored
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@ -32,6 +32,7 @@ docs/help/[a-z]*
docs/help/in/Makefile.am
src/fe-text/irssi
src/fe-fuzz/irssi-fuzz
src/fe-common/irc/irc-modules.c
src/irc/irc.c
@ -46,6 +47,9 @@ src/perl/ui/*.c
src/perl/*/MYMETA.*
src/perl/*/Makefile.old
src/fe-fuzz/crash-*
src/fe-fuzz/oom-*
*.a
*.bs
*.la

40
configure.ac
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@ -52,6 +52,19 @@ AC_ARG_WITH(bot,
fi,
want_irssibot=no)
AC_ARG_WITH(fuzzer,
[ --with-fuzzer Build irssi-fuzzer],
if test x$withval = xno; then
want_irssifuzzer=no
else
want_irssifuzzer=yes
fi,
want_irssifuzzer=no)
AC_ARG_WITH(fuzzer-lib,
[ --with-fuzzer-lib Specify path to fuzzer library],
fuzzerlibpath="$withval")
AC_ARG_WITH(proxy,
[ --with-proxy Build irssi-proxy],
if test x$withval = xno; then
@ -297,6 +310,30 @@ if test "x$want_textui" != "xno"; then
fi
dnl **
dnl ** irssifuzzer checks
dnl **
if test "$want_irssifuzzer" != "no"; then
dnl * we need to build with -fsanitize-coverage=trace-pc-guard
dnl * otherwise fuzzer won't be very successful at finding bugs :)
if test -z "$SANFLAGS"; then
SANFLAGS="-g -fsanitize=address -fsanitize-coverage=trace-pc-guard"
fi
CFLAGS="$CFLAGS $SANFLAGS"
CXXFLAGS="$CXXFLAGS $SANFLAGS"
AC_MSG_CHECKING(for fuzzer library)
if test -z "$fuzzerlibpath"; then
AC_MSG_RESULT([not found, building without fuzzer front end])
want_irssifuzzer=no
else
FUZZER_LIBS="$fuzzerlibpath"
AC_SUBST(FUZZER_LIBS)
fi
fi
dnl **
dnl ** perl checks
dnl **
@ -456,6 +493,7 @@ fi
dnl ** check what we want to build
AM_CONDITIONAL(BUILD_TEXTUI, test "$want_textui" = "yes")
AM_CONDITIONAL(BUILD_IRSSIBOT, test "$want_irssibot" = "yes")
AM_CONDITIONAL(BUILD_IRSSIFUZZER, test "$want_irssifuzzer" = "yes")
AM_CONDITIONAL(BUILD_IRSSIPROXY, test "$want_irssiproxy" = "yes")
AM_CONDITIONAL(HAVE_PERL, test "$want_perl" != "no")
@ -572,6 +610,7 @@ src/fe-common/core/Makefile
src/fe-common/irc/Makefile
src/fe-common/irc/dcc/Makefile
src/fe-common/irc/notifylist/Makefile
src/fe-fuzz/Makefile
src/fe-none/Makefile
src/fe-text/Makefile
src/lib-config/Makefile
@ -611,6 +650,7 @@ echo
echo "Building text frontend ........... : $want_textui"
echo "Building irssi bot ............... : $want_irssibot"
echo "Building irssi fuzzer ............ : $want_irssifuzzer"
echo "Building irssi proxy ............. : $want_irssiproxy"
if test "x$have_gmodule" = "xyes"; then
echo "Building with module support ..... : yes"

6
src/Makefile.am
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@ -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)

25
src/fe-fuzz/Makefile.am Normal file
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@ -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 \
module-formats.c
noinst_HEADERS = \
module-formats.h

58
src/fe-fuzz/irssi.c Normal file
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@ -0,0 +1,58 @@
/*
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 "module-formats.h"
#include "themes.h"
#include "core.h"
#include "fe-common-core.h"
#include "args.h"
#include "printtext.h"
#include <stdbool.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;
}

82
src/fe-fuzz/module-formats.c Normal file
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@ -0,0 +1,82 @@
/*
module-formats.c : irssi
Copyright (C) 2000 Timo Sirainen
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 "formats.h"
FORMAT_REC gui_text_formats[] =
{
{ MODULE_NAME, "Text user interface", 0 },
/* ---- */
{ NULL, "Lastlog", 0 },
{ "lastlog_too_long", "/LASTLOG would print $0 lines. If you really want to print all these lines use -force option.", 1, { 1 } },
{ "lastlog_count", "{hilight Lastlog}: $0 lines", 1, { 1 } },
{ "lastlog_start", "{hilight Lastlog}:", 0 },
{ "lastlog_end", "{hilight End of Lastlog}", 0 },
{ "lastlog_separator", "--", 0 },
{ "lastlog_date", "%%F ", 0 },
/* ---- */
{ NULL, "Windows", 0 },
{ "refnum_not_found", "Window number $0 not found", 1, { 0 } },
{ "window_too_small", "Not enough room to resize this window", 0 },
{ "cant_hide_last", "You can't hide the last window", 0 },
{ "cant_hide_sticky_windows", "You can't hide sticky windows (use /WINDOW STICK OFF)", 0 },
{ "cant_show_sticky_windows", "You can't show sticky windows (use /WINDOW STICK OFF)", 0 },
{ "window_not_sticky", "Window is not sticky", 0 },
{ "window_set_sticky", "Window set sticky", 0 },
{ "window_unset_sticky", "Window is not sticky anymore", 0 },
{ "window_info_sticky", "%#Sticky : $0", 1, { 0 } },
{ "window_info_scroll", "%#Scroll : $0", 1, { 0 } },
{ "window_scroll", "Window scroll mode is now $0", 1, { 0 } },
{ "window_scroll_unknown", "Unknown scroll mode $0, must be ON, OFF or DEFAULT", 1, { 0 } },
/* ---- */
{ NULL, "Statusbars", 0 },
{ "statusbar_list_header", "%#Name Type Placement Position Visible", 0 },
{ "statusbar_list_footer", "", 0 },
{ "statusbar_list", "%#$[30]0 $[6]1 $[9]2 $[8]3 $4", 5, { 0, 0, 0, 1, 0 } },
{ "statusbar_info_name", "%#Statusbar: {hilight $0}", 1, { 0 } },
{ "statusbar_info_type", "%#Type : $0", 1, { 0 } },
{ "statusbar_info_placement", "%#Placement: $0", 1, { 0 } },
{ "statusbar_info_position", "%#Position : $0", 1, { 1 } },
{ "statusbar_info_visible", "%#Visible : $0", 1, { 0 } },
{ "statusbar_info_item_header", "%#Items : Name Priority Alignment", 0 },
{ "statusbar_info_item_footer", "", 0 },
{ "statusbar_info_item_name", "%# : $[35]0 $[9]1 $2", 3, { 0, 1, 0 } },
{ "statusbar_not_found", "Statusbar doesn't exist: $0", 1, { 0 } },
{ "statusbar_item_not_found", "Statusbar item doesn't exist: $0", 1, { 0 } },
{ "statusbar_unknown_command", "Unknown statusbar command: $0", 1, { 0 } },
{ "statusbar_unknown_type", "Statusbar type must be 'window' or 'root'", 1, { 0 } },
{ "statusbar_unknown_placement", "Statusbar placement must be 'top' or 'bottom'", 1, { 0 } },
{ "statusbar_unknown_visibility", "Statusbar visibility must be 'always', 'active' or 'inactive'", 1, { 0 } },
/* ---- */
{ NULL, "Pasting", 0 },
{ "paste_warning", "Pasting $0 lines to $1. Press Ctrl-K if you wish to do this or Ctrl-C to cancel.", 2, { 1, 0 } },
{ "paste_prompt", "Hit Ctrl-K to paste, Ctrl-C to abort?", 0 },
{ NULL, NULL, 0 }
};

58
src/fe-fuzz/module-formats.h Normal file
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@ -0,0 +1,58 @@
#include "formats.h"
enum {
TXT_MODULE_NAME,
TXT_FILL_1,
TXT_LASTLOG_TOO_LONG,
TXT_LASTLOG_COUNT,
TXT_LASTLOG_START,
TXT_LASTLOG_END,
TXT_LASTLOG_SEPARATOR,
TXT_LASTLOG_DATE,
TXT_FILL_2,
TXT_REFNUM_NOT_FOUND,
TXT_WINDOW_TOO_SMALL,
TXT_CANT_HIDE_LAST,
TXT_CANT_HIDE_STICKY_WINDOWS,
TXT_CANT_SHOW_STICKY_WINDOWS,
TXT_WINDOW_NOT_STICKY,
TXT_WINDOW_SET_STICKY,
TXT_WINDOW_UNSET_STICKY,
TXT_WINDOW_INFO_STICKY,
TXT_WINDOW_INFO_SCROLL,
TXT_WINDOW_SCROLL,
TXT_WINDOW_SCROLL_UNKNOWN,
TXT_FILL_3,
TXT_STATUSBAR_LIST_HEADER,
TXT_STATUSBAR_LIST_FOOTER,
TXT_STATUSBAR_LIST,
TXT_STATUSBAR_INFO_NAME,
TXT_STATUSBAR_INFO_TYPE,
TXT_STATUSBAR_INFO_PLACEMENT,
TXT_STATUSBAR_INFO_POSITION,
TXT_STATUSBAR_INFO_VISIBLE,
TXT_STATUSBAR_INFO_ITEM_HEADER,
TXT_STATUSBAR_INFO_ITEM_FOOTER,
TXT_STATUSBAR_INFO_ITEM_NAME,
TXT_STATUSBAR_NOT_FOUND,
TXT_STATUSBAR_ITEM_NOT_FOUND,
TXT_STATUSBAR_UNKNOWN_COMMAND,
TXT_STATUSBAR_UNKNOWN_TYPE,
TXT_STATUSBAR_UNKNOWN_PLACEMENT,
TXT_STATUSBAR_UNKNOWN_VISIBILITY,
TXT_FILL_4,
TXT_PASTE_WARNING,
TXT_PASTE_PROMPT,
TXT_COUNT
};
extern FORMAT_REC gui_text_formats[TXT_COUNT+1];

143
src/fe-fuzz/tokens.txt Normal file
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@ -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"