Note: The examples provided below use hardcoded paths (here to /home/$USER/) and version strings of the libraries (e.g. apr-1.5.2). These will have to be modified, so they reflect your actual build environment.

Compile honggfuzz
Download and unpack the following packages: apr, apr-util, ngttp2, and Apache's httpd
Patch Apache's httpd

$ cd httpd-master
$ patch -p1 < httpd-master.honggfuzz.patch

Configure, compile and install Apache

edit compile_and_install.asan.sh so it contains valid versions/paths

$ ./compile_and_install.asan.sh

Copy custom configuration files (httpd.conf.h1 and httpd.conf.h2) to /home/$USER/fuzz/apache/apache2/conf/ (i.e. to your apache dist directory)

$ cp httpd.conf.h1 httpd.conf.h2 /home/$USER/fuzz/apache/apache2/conf/

Edit httpd.conf.h1 and httpd.conf.h2, so they contain valid configuration paths

Fuzzing

HTTP/1

$ honggfuzz/honggfuzz -f corpus_http1 -w ./httpd.wordlist -- ./apache2/bin/httpd -DFOREGROUND -f  /home/$USER/fuzz/apache/apache2/conf/httpd.conf.h1

HTTP/2

$ honggfuzz/honggfuzz -f corpus_http2 -w ./httpd.wordlist -- ./apache2/bin/httpd -DFOREGROUND -f /home/$USER/fuzz/apache/apache2/conf/httpd.conf.h2