top-level Makefile for it

Makefile

@@ -0,0 +1,9 @@
+.PHONY: default
+default:
+	$(MAKE) -C src
+	$(MAKE) -C examples/tgunzip
+
+.PHONY: %
+%:
+	$(MAKE) -C src $@
+	$(MAKE) -C examples/tgunzip $@

examples/tgunzip/Makefile

@@ -0,0 +1,30 @@
+##
+## tgunzip  -  gzip decompressor example
+##
+## GCC makefile (Linux, FreeBSD, BeOS and QNX)
+##
+## Copyright (c) 2003 by Joergen Ibsen / Jibz
+## All Rights Reserved
+##
+## http://www.ibsensoftware.com/
+##
+
+target  = tgunzip
+objects = tgunzip.o
+libs    = ../../lib/libtinf.a
+
+cflags  = -Wall -g -I../../src -fsanitize=undefined -fno-sanitize-recover=undefined
+ldflags = $(cflags) -Wl,-Map,ld.map
+
+.PHONY: all clean
+
+all: $(target)
+
+$(target): $(objects) $(libs)
+	/home/jepler/src/afl-2.52b/afl-clang-fast $(ldflags) -o $@ $^ $(libs)
+
+%.o : %.c
+	/home/jepler/src/afl-2.52b/afl-clang-fast $(cflags) -c $<
+
+clean:
+	$(RM) $(objects) $(target)

examples/tgunzip/tgunzip.c

@@ -65,6 +65,10 @@ int main(int argc, char *argv[])
 
     uzlib_init();
 
+#ifdef __AFL_HAVE_MANUAL_CONTROL
+    __AFL_INIT();
+#endif
+
     /* -- open files -- */
 
     if ((fin = fopen(argv[1], "rb")) == NULL) exit_error("source file");

src/Makefile

@@ -0,0 +1,37 @@
+##
+## tinflib  -  tiny inflate library (inflate, gzip, zlib)
+##
+## GCC makefile (Linux, FreeBSD, BeOS and QNX)
+##
+## Copyright (c) 2003 by Joergen Ibsen / Jibz
+## All Rights Reserved
+##
+## http://www.ibsensoftware.com/
+##
+
+target  = ../lib/libtinf.a
+objects = tinflate.o tinfgzip.o tinfzlib.o adler32.o crc32.o \
+    defl_static.o genlz77.o
+
+headers = $(wildcard *.h)
+
+cflags  = -Wall -g -fsanitize=undefined -fno-sanitize-recover=undefined
+ldflags = $(cflags)
+
+.PHONY: all clean
+
+all: $(target)
+
+$(target): $(objects)
+	$(RM) $@
+	ar -frsv $@ $^
+	ranlib $@
+
+%.o : %.c $(HEADERS)
+	/home/jepler/src/afl-2.52b/afl-clang-fast $(cflags) -o $@ -c $<
+
+%.o : %.nas
+	nasm -o $@ -f elf -D_ELF_ -O3 -Inasm/ $<
+
+clean:
+	$(RM) $(objects) $(target)