Network (FreeBSD): add dirty support

CMakeLists.txt

@@ -434,6 +434,7 @@ elseif(BSD)
         src/detection/gamepad/gamepad_nosupport.c
         src/detection/media/media_linux.c
         src/detection/memory/memory_bsd.c
+        src/detection/network/network_bsd.c
         src/detection/opengl/opengl_linux.c
         src/detection/os/os_linux.c
         src/detection/packages/packages_linux.c

src/detection/network/network_bsd.c

@@ -0,0 +1,50 @@
+#include "common/io/io.h"
+#include "detection/network/network.h"
+
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <ifaddrs.h>
+
+const char* ffDetectNetwork(FF_MAYBE_UNUSED FFinstance* instance, FFlist* result)
+{
+    struct ifaddrs* ifAddrStruct = NULL;
+    if(getifaddrs(&ifAddrStruct) < 0)
+        return "getifaddrs(&ifAddrStruct) failed";
+
+    int FF_AUTO_CLOSE_FD sockfd = socket(AF_INET, SOCK_DGRAM, 0);
+
+    for (struct ifaddrs* ifa = ifAddrStruct; ifa; ifa = ifa->ifa_next)
+    {
+        if (!ifa->ifa_addr || ifa->ifa_addr->sa_family != AF_LINK)
+            continue;
+
+        if (ifa->ifa_flags & IFF_LOOPBACK || !(ifa->ifa_flags & IFF_RUNNING))
+            continue;
+
+        bool isUp = !!(ifa->ifa_flags & IFF_UP);
+        if (!isUp && !instance->config.networkAll)
+            continue;
+
+        FFNetworkResult* item = (FFNetworkResult*) ffListAdd(result);
+        ffStrbufInit(&item->type);
+        ffStrbufInitS(&item->name, ifa->ifa_name);
+
+        uint8_t* ptr = (uint8_t*) LLADDR((struct sockaddr_dl *)ifa->ifa_addr);
+        ffStrbufInitF(&item->address, "%02x:%02x:%02x:%02x:%02x:%02x",
+                      ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5]);
+
+        if (sockfd > 0)
+        {
+            struct ifreq ifr;
+            strcpy(ifr.ifr_name, ifa->ifa_name);
+            item->mtu = ioctl(sockfd, SIOCGIFMTU, &ifr) >= 0 ? (uint32_t) ifr.ifr_mtu : 0;
+        }
+
+        item->up = isUp;
+    }
+
+    freeifaddrs(ifAddrStruct);
+
+    return NULL;
+}