mqtt: add a new mqtt target with this protocol enabled

Closes #40

Author: bagder

Makefile.am

@@ -5,7 +5,7 @@
 #                            | (__| |_| |  _ <| |___
 #                             \___|\___/|_| \_\_____|
 #
-# Copyright (C) 1998 - 2017, Daniel Stenberg, <[email protected]>, et al.
+# Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
 #
 # This software is licensed as described in the file COPYING, which
 # you should have received as part of this distribution. The terms
@@ -44,6 +44,7 @@ FUZZPROGS = curl_fuzzer \
 			curl_fuzzer_https \
 			curl_fuzzer_imap \
 			curl_fuzzer_ldap \
+			curl_fuzzer_mqtt \
 			curl_fuzzer_pop3 \
 			curl_fuzzer_rtmp \
 			curl_fuzzer_rtsp \
@@ -91,6 +92,9 @@ curl_fuzzer_imap_LDADD = $(COMMON_LDADD)
 curl_fuzzer_ldap_SOURCES = $(COMMON_SOURCES)
 curl_fuzzer_ldap_CXXFLAGS = $(COMMON_FLAGS) -DFUZZ_PROTOCOLS_LDAP
 curl_fuzzer_ldap_LDADD = $(COMMON_LDADD)
+curl_fuzzer_mqtt_SOURCES = $(COMMON_SOURCES)
+curl_fuzzer_mqtt_CXXFLAGS = $(COMMON_FLAGS) -DFUZZ_PROTOCOLS_MQTT
+curl_fuzzer_mqtt_LDADD = $(COMMON_LDADD)
 curl_fuzzer_pop3_SOURCES = $(COMMON_SOURCES)
 curl_fuzzer_pop3_CXXFLAGS = $(COMMON_FLAGS) -DFUZZ_PROTOCOLS_POP3
 curl_fuzzer_pop3_LDADD = $(COMMON_LDADD)

curl_fuzzer.cc

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 2017, Max Dymond, <[email protected]>, et al.
+ * Copyright (C) 2017 - 2021, Max Dymond, <[email protected]>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -500,6 +500,9 @@ int fuzz_set_allowed_protocols(FUZZ_DATA *fuzz)
   allowed_protocols |= CURLPROTO_LDAP;
   allowed_protocols |= CURLPROTO_LDAPS;
 #endif
+#ifdef FUZZ_PROTOCOLS_MQTT
+  allowed_protocols |= CURLPROTO_MQTT;
+#endif
 #ifdef FUZZ_PROTOCOLS_POP3
   allowed_protocols |= CURLPROTO_POP3;
   allowed_protocols |= CURLPROTO_POP3S;

scripts/fuzz_targets

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-export FUZZ_TARGETS="curl_fuzzer_dict curl_fuzzer_file curl_fuzzer_ftp curl_fuzzer_gopher curl_fuzzer_http curl_fuzzer_https curl_fuzzer_imap curl_fuzzer_ldap curl_fuzzer_pop3 curl_fuzzer_rtmp curl_fuzzer_rtsp curl_fuzzer_scp curl_fuzzer_sftp curl_fuzzer_smb curl_fuzzer_smtp curl_fuzzer_tftp curl_fuzzer"
+export FUZZ_TARGETS="curl_fuzzer_dict curl_fuzzer_file curl_fuzzer_ftp curl_fuzzer_gopher curl_fuzzer_http curl_fuzzer_https curl_fuzzer_imap curl_fuzzer_ldap curl_fuzzer_mqtt curl_fuzzer_pop3 curl_fuzzer_rtmp curl_fuzzer_rtsp curl_fuzzer_scp curl_fuzzer_sftp curl_fuzzer_smb curl_fuzzer_smtp curl_fuzzer_tftp curl_fuzzer"