Global: support DragonFly BSD

src/common/init.c

@@ -245,7 +245,7 @@ void ffListFeatures(void)
         #if FF_HAVE_DDCUTIL
             "libddcutil\n"
         #endif
-        #if FF_HAVE_ELF || __sun || __FreeBSD__ || __OpenBSD__ || __NetBSD__
+        #if FF_HAVE_ELF || __sun || (__FreeBSD__ && !__DragonFly__) || __OpenBSD__ || __NetBSD__
             "libelf\n"
         #endif
         #if FF_HAVE_LIBZFS

src/common/netif/netif_bsd.c

@@ -91,7 +91,7 @@ bool ffNetifGetDefaultRouteImpl(char iface[IF_NAMESIZE + 1], uint32_t* ifIndex)
         if (rtmsg.hdr.rtm_seq == 1 && rtmsg.hdr.rtm_pid == pid)
         {
             struct sockaddr_dl* sdl = (struct sockaddr_dl *)get_rt_address(&rtmsg.hdr, RTA_IFP);
-            if (sdl)
+            if (sdl && sdl->sdl_len)
             {
                 assert(sdl->sdl_nlen <= IF_NAMESIZE);
                 memcpy(iface, sdl->sdl_data, sdl->sdl_nlen);

src/common/processing_linux.c

@@ -367,6 +367,13 @@ const char* ffProcessGetBasicInfoLinux(pid_t pid, FFstrbuf* name, pid_t* ppid, i
 
     #elif defined(__FreeBSD__)
 
+    #ifdef __DragonFly__
+        #define ki_comm kp_comm
+        #define ki_ppid kp_ppid
+        #define ki_tdev kp_tdev
+        #define ki_flag kp_flags
+    #endif
+
     struct kinfo_proc proc;
     size_t size = sizeof(proc);
     if(sysctl(