update

2 files changed, 14 insertions, 9 deletions

diff --git a/utils/argv_fuzzing/Makefile b/utils/argv_fuzzing/Makefile
index 3ebde54b..fca46b09 100644
--- a/utils/argv_fuzzing/Makefile
+++ b/utils/argv_fuzzing/Makefile
@@ -11,7 +11,7 @@
 #   http://www.apache.org/licenses/LICENSE-2.0
 #
 
-.PHONY: all install clean
+.PHONY: all install clean demo
 
 PREFIX     ?= /usr/local
 BIN_PATH    = $(PREFIX)/bin
@@ -58,5 +58,7 @@ clean:
 	rm -f argvfuzz32.so argvfuzz64.so argv_fuzz_demo argv_fuzz_persistent_demo
 
 demo:
-	../../afl-clang-fast -o argv_fuzz_demo argv_fuzz_demo.c
-	../../afl-clang-fast -o argv_fuzz_persistent_demo argv_fuzz_persistent_demo.c
\ No newline at end of file
+	CC = afl-clang-fast
+	CFLAGS = -fsanitize=address
+	-@$(CC) $(CFLAGS) -o argv_fuzz_demo argv_fuzz_demo.c
+	-@$(CC) $(CFLAGS) -o argv_fuzz_persistent_demo argv_fuzz_persistent_demo.c
\ No newline at end of file
diff --git a/utils/argv_fuzzing/README.md b/utils/argv_fuzzing/README.md
index e22fbe4e..d248cf93 100644
--- a/utils/argv_fuzzing/README.md
+++ b/utils/argv_fuzzing/README.md
@@ -1,14 +1,16 @@
 # argv_fuzzing feature
-AFL++ supports fuzzing file inputs or stdin. The argv_fuzzing feature allows for fuzzing of arguments passed to a program from the command line interface, rather than from standard input.  
+AFL++ supports fuzzing file inputs or stdin. The argv_fuzzing feature allows for the fuzzing of arguments
+passed to a program from the command line interface rather than from standard input.  
 
 ## With source code
-When source is available, a macro from the `argv-fuzz-inl.h` header file can be used to change the program's behavior to build argv from STDIN.
+When the source code is available, a specific macro from the `argv-fuzz-inl.h` header file can be used to change
+the program's behavior to build argv from STDIN.
 
 ### Without persistent mode
 Conditions needed to use the argv_fuzzing feature:
 1. Include `argv-fuzz-inl.h` header file (`#include "argv-fuzz-inl.h"`)
 2. Identify your main function that parses arguments (for example, `int main(int argc, char **argv)`)
-3. Use the one of the following macros (near the beginning of the main function) to initialize argv with the fuzzer's input:
+3. Use one of the following macros (near the beginning of the main function) to initialize argv with the fuzzer's input:
    - `AFL_INIT_ARGV();` or
    - `AFL_INIT_SET0("prog_name");` to preserve `argv[0]` (the name of the program being executed)
    
@@ -18,7 +20,8 @@ see: [argv_fuzz_demo.c](argv_fuzz_demo.c)
 Conditions needed to use the argv_fuzzing feature with persistent mode:
 1. Ensure your target can handle persistent mode fuzzing
 2. Follow instructions in the [llvm_mode persistent mode](https://github.com/AFLplusplus/AFLplusplus/blob/stable/instrumentation/README.persistent_mode.md)
-3. Use the one of the following macro near the beginning of the main function and after the buffer initialization (`unsigned char *buf = __AFL_FUZZ_TESTCASE_BUF`):
+3. Use one of the following macros near the beginning of the main function and after 
+the buffer initialization (`unsigned char *buf = __AFL_FUZZ_TESTCASE_BUF`):
    - `AFL_INIT_ARGV_PERSISTENT(buf)`, if you want to 
    - `AFL_INIT_SET0_PERSISTENT("name_of_binary", buf)`
 
@@ -34,5 +37,5 @@ A few conditions need to be fulfilled for this mechanism to work correctly:
 1. As it relies on hooking the loader, it cannot work on static binaries
 2. If the target binary does not use the default libc's `_start` implementation
    (crt1.o), the hook may not run.
-3. The hook will replace argv with pointers to `.data` of `argvfuzz.so`. If the
-   target binary expects argv to be living on the stack, things may go wrong.
+3. The hook will replace argv with pointers to `.data` of `argvfuzz.so`.
+Things may go wrong if the target binary expects argv to live on the stack.