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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
commit cf46907256
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8 changed files with 415 additions and 1 deletions
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src/fe-fuzz/irssi.c Normal file
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/*
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;
}