Can't build OpENer with AFL

[nasaarmas]

OS: arch linux (tested also on ubuntu 18 container, and VM of mint 17 )
Step to reproduce:

1. Install AFL:

wget http://lcamtuf.coredump.cx/afl/releases/afl-latest.tgz
tar xzf afl-latest.tgz
cd afl*
make && sudo make install

2. Download OpENer
3. Configure OpENer by running ./setup_posix_fuzz_afl.sh in OpENer/bin/posix/
4. Run make
   Results in following errors:

/home/username/Code/enip_tools/OpENer/source/src/ports/POSIX/main.c:283:9: error: implicit declaration of func      tion ‘__AFL_LOOP’ [-Wimplicit-function-declaration]
    1   283 |   while(__AFL_LOOP(100000) ) {                                                                            2       |         ^~~~~~~~~~
    3 /home/username/Code/enip_tools/OpENer/source/src/ports/POSIX/main.c:297:59: warning: conversion to ‘size_t’ {a      ka ‘long unsigned int’} from ‘ssize_t’ {aka ‘long int’} may change the sign of the result [-Wsign-conversion]
    4   297 |                                                           received_size,                                  5       |                                                           ^~~~~~~~~~~~~
    6 /home/username/Code/enip_tools/OpENer/source/src/ports/POSIX/main.c:299:59: error: passing argument 5 of ‘Hand      leReceivedExplictTcpData’ from incompatible pointer type [-Wincompatible-pointer-types]
    7   299 |                                                           &from_address,
    8       |                                                           ^~~~~~~~~~~~~
    9       |                                                           |
   10       |                                                           struct sockaddr_in *
   11

5. Fixing it with following:

index 38a3bec51..4cbc5f297 100644
--- a/source/src/ports/POSIX/main.c
+++ b/source/src/ports/POSIX/main.c
@@ -16,6 +16,13 @@
 #include <limits.h>
 #endif

+#ifndef __AFL_LOOP
+#define __AFL_LOOP(x) (x)
+#endif
+
+
+
+
 #include "generic_networkhandler.h"
 #include "opener_api.h"
 #include "cipethernetlink.h"
@@ -292,7 +299,7 @@ static void fuzzHandlePacketFlow(void) {
                                                           receive_buffer,
                                                           received_size,
                                                           &remaining_bytes,
-                                                          &from_address,
+                                                          (struct sockaddr *)&from_address,
                                                           &outgoing_message);
   }
 }

7. After this fix there seems to be linker issues:

 ❯ make                                                                                                  [17:28:14]
 [ 11% ] Built target Utils
 [ 20% ] Built target ENET_ENCAP
 [ 63% ] Built target CIP
 [ 70% ] Built target PLATFORM_GENERIC
 [ 79% ] Built target POSIXPLATFORM
 [ 90% ] Built target NVDATA
 [ 95% ] Built target SAMPLE_APP
 [ 97% ] Linking C executable OpENer
 afl-cc 2.57b by <lcamtuf@google.com>
 /usr/bin/ld: ../../cip/libCIP.a(cipioconnection.c.o): warning: relocation against `g_network_status' in read-only section `.text'
 /usr/bin/ld: ../../cip/libCIP.a(cipconnectionmanager.c.o): in function `ForwardOpenRoutine':
 /home/username/Code/enip_tools/OpENer/source/src/cip/cipconnectionmanager.c:631:(.text+0x2ab6): undefined reference to `g_network_status'
 /usr/bin/ld: /home/username/Code/enip_tools/OpENer/source/src/cip/cipconnectionmanager.c:631:(.text+0x2ac6): undefined reference to `g_network_status'
 /usr/bin/ld: ../../cip/libCIP.a(cipconnectionmanager.c.o): in function `CloseConnection':
 /home/username/Code/enip_tools/OpENer/source/src/cip/cipconnectionmanager.c:1693:(.text+0x544b): undefined reference to `CloseUdpSocket'
 /usr/bin/ld: /home/username/Code/enip_tools/OpENer/source/src/cip/cipconnectionmanager.c:1696:(.text+0x5460): undefined reference to `CloseUdpSocket'
 /usr/bin/ld: ../../cip/libCIP.a(cipioconnection.c.o): in function `SendConnectedData':
 /home/username/Code/enip_tools/OpENer/source/src/cip/cipioconnection.c:908:(.text+0x76f): undefined reference to `SendUdpData'
 /usr/bin/ld: ../../cip/libCIP.a(cipioconnection.c.o): in function `CloseCommunicationChannelsAndRemoveFromActiveConnectionsList':
 /home/username/Code/enip_tools/OpENer/source/src/cip/cipioconnection.c:1035:(.text+0xf69): undefined reference to `CloseUdpSocket'
 /usr/bin/ld: /home/username/Code/enip_tools/OpENer/source/src/cip/cipioconnection.c:1030:(.text+0x1011): undefined reference to `CloseUdpSocket'
 /usr/bin/ld: ../../cip/libCIP.a(cipioconnection.c.o): in function `OpenConsumingPointToPointConnection':
 /home/username/Code/enip_tools/OpENer/source/src/cip/cipioconnection.c:419:(.text+0x21b0): undefined reference to `SetQos'
 `

[CoolwindHF]

I'd solved it by delete the option "-DUSE_FUZZ_AFL=ON". After that it doesn't occure any errors, but I'm not familiar at using cmake and makefile, thus I don't know why this option can cause this case.
But I tried to find the variable that caused this issue such as 'g_network_status', I find they are almost defined in the files under the path 'source/src/ports', I think "-DUSE_FUZZ_AFL=ON" may cause the inclusion of this path.

[nasaarmas]

I'd solved it by delete the option "-DUSE_FUZZ_AFL=ON"

It indeed fixed the building process.
But still couldn't make it run against cpppo on a loopback.