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AFL without globals (#220)

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* moved globals to afl, shm and fsrv 

* moved argv to afl state, less bugs

* fixed unicorn docu

* lists everywhere

* merged custom mutators

* fixed leaks in afl-fuzz
This commit is contained in:
Dominik Maier
2020-03-09 11:24:10 +01:00
committed by GitHub
parent c159b872ef
commit dba3595c0a
26 changed files with 3741 additions and 3584 deletions
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41
include/forkserver.h
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@ -27,8 +27,47 @@
#ifndef __AFL_FORKSERVER_H
#define __AFL_FORKSERVER_H
#include <stdio.h>
typedef struct afl_forkserver {
/* a program that includes afl-forkserver needs to define these */
u8 uses_asan; /* Target uses ASAN? */
u8* trace_bits; /* SHM with instrumentation bitmap */
u8 use_stdin; /* use stdin for sending data */
s32 fsrv_pid, /* PID of the fork server */
child_pid, /* PID of the fuzzed program */
out_dir_fd; /* FD of the lock file */
s32 out_fd, /* Persistent fd for afl->fsrv.out_file */
#ifndef HAVE_ARC4RANDOM
dev_urandom_fd, /* Persistent fd for /dev/urandom */
#endif
dev_null_fd, /* Persistent fd for /dev/null */
fsrv_ctl_fd, /* Fork server control pipe (write) */
fsrv_st_fd; /* Fork server status pipe (read) */
u32 exec_tmout; /* Configurable exec timeout (ms) */
u64 mem_limit; /* Memory cap for child (MB) */
u8 *out_file, /* File to fuzz, if any */
*target_path; /* Path of the target */
FILE* plot_file; /* Gnuplot output file */
u8 child_timed_out; /* Traced process timed out? */
} afl_forkserver_t;
void handle_timeout(int sig);
void init_forkserver(char **argv);
void afl_fsrv_init(afl_forkserver_t *fsrv);
void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv);
void afl_fsrv_deinit(afl_forkserver_t *fsrv);
void afl_fsrv_killall();
#ifdef __APPLE__
#define MSG_FORK_ON_APPLE \