Compile DIAL client and server for macOS.

Changes:
* Added method to get mac and ip address for OSX. Current Linux method
of query via SIOCGIFCONF doesn't work. Added code to read via getifaddrs() API.
* Put non OSX specific code under #ifdef flags.
* Removed few linker libraries which are not required (lcares and lrt).
* Fixed many warnings.

Tested on: OSX 10.12

client/DialConformance.h

@@ -65,7 +65,6 @@ public:
         string &outputFile );
 private:
     DialConformance();
-    DialServer*                 _pServer;
     static DialConformance*     sConformance;
     DialClientInput             _input;
 

client/DialDiscovery.h

@@ -28,6 +28,7 @@
 
 #include "DialServer.h"
 #include <map>
+#include <pthread.h>
 
 using namespace std;
 
@@ -82,9 +83,6 @@ private:
     void cleanServerList();
     void resetDiscovery();
 
-    pthread_t _mcastThread;
-    pthread_t _responseThread;
-
     typedef map<string, DialServer*> ServerMap;
     ServerMap mServerMap;
 

client/DialServer.cpp

@@ -226,7 +226,7 @@ int DialServer::getStatus(
 
     if (!status) return 0;
     ATRACE("Body: %s\n", responseBody.c_str());
-    unsigned found = responseBody.find("href=");
+    size_t found = responseBody.find("href=");
     if( found != string::npos )
     {
         // The start of href is after href= and the quote

client/main.cpp

@@ -136,7 +136,7 @@ static void runConformance()
         else 
         {
             printf("DIAL server not found\n");
-            printf("%Zu available server(s): \n", list.size());
+            printf("%zu available server(s): \n", list.size());
             printServerList(list);
         }
     }

client/makefile

@@ -8,7 +8,7 @@ OBJS := main.cpp DialServer.cpp DialDiscovery.cpp DialConformance.cpp DialClient
 
 # You may not need all these libraries.  This example uses a build of curl that needs crypto, ssl, cares, and zlib
 dialclient: $(OBJS) ${includes}
-	$(CC) -Wall -Werror -g $(OBJS) $(INCLUDES) $(LDFLAGS) -ldl -lpthread -lcurl -lz -lcrypto -lssl -lcares -o dialclient
+	$(CC) -Wall -Werror -g $(OBJS) $(INCLUDES) $(LDFLAGS) -ldl -lpthread -lcurl -lz -lcrypto -lssl -o dialclient
 
 dialclient_debug: $(OBJS) ${includes}
 	$(CC) -DDEBUG -Wall -Werror -g $(OBJS) $(INCLUDES) $(LDFLAGS) -ldl -lpthread -lcurl -lz -lcrypto -lssl -lcares -o dialclient_debug

server/LinuxInterfaces.c

@@ -77,3 +77,4 @@ NetInterface getDefaultNetworkInterfaces()
     }
     return defaultNet;
 }
+

server/LinuxInterfaces.h

@@ -1,10 +1,13 @@
 #ifndef LINUXINTERFACES_H_
 #define LINUXINTERFACES_H_
 
-#include <arpa/inet.h>
-#include <dirent.h>
+#ifndef __APPLE__
 #include <linux/limits.h>
 #include <linux/wireless.h>
+#endif
+
+#include <arpa/inet.h>
+#include <dirent.h>
 #include <netinet/in.h>
 #include <string.h>
 #include <sys/ioctl.h>

server/makefile

@@ -3,7 +3,7 @@ CC=$(TARGET)gcc
 .PHONY: clean
 .DEFAULT_GOAL=all
 
-OBJS := main.o dial_server.o mongoose.o quick_ssdp.o url_lib.o dial_data.o LinuxInterfaces.o
+OBJS := main.o dial_server.o mongoose.o quick_ssdp.o url_lib.o dial_data.o
 HEADERS := $(wildcard *.h)
 
 %.c: $(HEADERS)
@@ -15,10 +15,12 @@ HEADERS := $(wildcard *.h)
 all: dialserver test
 
 nf_callbacks_lib: nf_callbacks.o
-	$(CC) -Wall -Werror -g nf_callbacks.o -o libnfCallbacks.so --shared
+#	$(CC) -Wall -Werror -g nf_callbacks.o -o libnfCallbacks.so --shared
+	$(CC) -Wall -Werror -Wl,-undefined -Wl,dynamic_lookup -g nf_callbacks.o -o libnfCallbacks.so --shared
+
 
 dialserver: nf_callbacks_lib $(OBJS)
-	$(CC) -Wall -Werror -Wl,-rpath,. -g $(OBJS) -ldl -lpthread -lrt -L. -lnfCallbacks -o dialserver
+	$(CC) -Wall -Werror -Wl,-rpath,. -g $(OBJS) -ldl -lpthread -L. -lnfCallbacks -o dialserver
 
 test:
 	make -C tests

server/mongoose.c

@@ -800,7 +800,9 @@ static void worker_thread(struct mg_context *ctx) {
   // required in the DIAL specification.
   int buf_size = MAX_REQUEST_SIZE;
 
+#ifndef __APPLE__
   pthread_setname_np( pthread_self(), __func__);
+#endif
   conn = (struct mg_connection *) calloc(1, sizeof(*conn) + buf_size);
   conn->buf_size = buf_size;
   conn->buf = (char *) (conn + 1);
@@ -860,7 +862,9 @@ static void produce_socket(struct mg_context *ctx, const struct socket *sp) {
 static void master_thread(struct mg_context *ctx) {
   struct socket accepted;
 
+#ifndef __APPLE__
   pthread_setname_np( pthread_self(), __func__);
+#endif
   socklen_t sock_len = sizeof(accepted.local_addr);
   memcpy(&accepted.local_addr, &ctx->local_address, sock_len);
 

server/nf_callbacks.c

@@ -8,6 +8,7 @@
 #include <regex.h>
 #include "dial_server.h"
 #include "url_lib.h"
+#include "nf_callbacks.h"
 
 extern char *spAppNetflix;
 extern char spNetflix[];

server/quick_ssdp.c

@@ -35,6 +35,13 @@
 #include "mongoose.h"
 #include <stdbool.h>
 
+#ifdef __APPLE__
+#include <ifaddrs.h>
+#include <net/if.h>
+#include <net/if_dl.h>
+#endif
+
+
 // TODO: Partners should define this port
 #define SSDP_PORT (56790)
 static char gBuf[4096];
@@ -108,6 +115,30 @@ static void *request_handler(enum mg_event event,
     return NULL;
 }
 
+#ifdef __APPLE__
+static void get_local_address() {
+    struct ifaddrs* iflist;
+    char *if_name= "en0";
+    char buf[INET6_ADDRSTRLEN];
+
+    if (getifaddrs(&iflist) == 0) {
+        for (struct ifaddrs* cur = iflist; cur; cur = cur->ifa_next) {
+          if (strcmp(cur->ifa_name, if_name) == 0) {
+            if ((cur->ifa_addr->sa_family == AF_LINK) && cur->ifa_addr) {
+                struct sockaddr_dl* sdl = (struct sockaddr_dl*)cur->ifa_addr;
+                memcpy(hw_addr, LLADDR(sdl), sdl->sdl_alen);
+            }
+
+            if (cur->ifa_addr->sa_family == AF_INET) {
+              void *tmp = &((struct sockaddr_in *)cur->ifa_addr)->sin_addr;
+              strcpy(ip_addr, inet_ntop(cur->ifa_addr->sa_family, tmp, buf, sizeof(buf)));
+            }
+          }
+        }
+        freeifaddrs(iflist);
+    }
+}
+#else
 static void get_local_address() {
     struct ifconf ifc;
     char buf[4096];
@@ -152,6 +183,7 @@ static void get_local_address() {
     }
     close(s);
 }
+#endif
 
 static void handle_mcast() {
     int s, one = 1, bytes;
@@ -174,8 +206,9 @@ static void handle_mcast() {
         exit(1);
     }
     saddr.sin_family = AF_INET;
-    saddr.sin_addr.s_addr = inet_addr("239.255.255.250");
+    saddr.sin_addr.s_addr = INADDR_ANY; //inet_addr("239.255.255.250");
     saddr.sin_port = htons(1900);
+
     if (-1 == bind(s, (struct sockaddr *)&saddr, sizeof(saddr))) {
         perror("bind");
         exit(1);
@@ -211,7 +244,7 @@ static void handle_mcast() {
                 printf("\n##### End of DROP #######\n");
 #endif
                 continue;
-            }
+        }
         printf("Sending SSDP reply to %s:%d\n",
                inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
         if (-1 == sendto(s, send_buf, send_size, 0, (struct sockaddr *)&saddr, addrlen)) {