Preliminary Android support

Some small changes to prepare a cross-compilation for the Android platform
Signed-off-by: Ghislain Putois <ghpu@infonie.fr>
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

AUTHORS

@@ -27,6 +27,7 @@ Fabien Ninoles <fabien@tzone.org>
 Frank Denis <zeromq@pureftpd.org>
 George Neill <georgen@neillnet.com>
 Gerard Toonstra <gtoonstra@gmail.com>
+Ghislain Putois <ghpu@infonie.fr>
 Gonzalo Diethelm <gdiethelm@dcv.cl>
 Guido Goldstein <zmq@a-nugget.de>
 Ilja Golshtein <ilejncs@narod.ru>

src/ip.cpp

@@ -106,7 +106,7 @@ static int resolve_nic_name (struct sockaddr* addr_, char const *interface_,
     return 0;
 }
 
-#elif defined ZMQ_HAVE_AIX || ZMQ_HAVE_HPUX
+#elif defined ZMQ_HAVE_AIX || ZMQ_HAVE_HPUX || ZMQ_HAVE_ANDROID
 
 #include <sys/types.h>
 #include <unistd.h>
@@ -139,8 +139,9 @@ static int resolve_nic_name (struct sockaddr* addr_, char const *interface_,
         return -1;
     }
 
-    struct sockaddr *sa = (struct sockaddr *) &ifr.ifr_addr;
-    *addr_ = ((sockaddr_in*)sa)->sin_addr;
+    memcpy (&((sockaddr_in*) addr_)->sin_addr,
+        &((sockaddr_in*) &ifr.ifr_addr)->sin_addr, sizeof (in_addr));
+
     return 0;    
 }
 

src/thread.cpp

@@ -59,15 +59,15 @@ extern "C"
 {
     static void *thread_routine (void *arg_)
     {
-    #if !defined ZMQ_HAVE_OPENVMS
-        //  Following code will guarantee more predictable latecnies as it'll
+#if !defined ZMQ_HAVE_OPENVMS && !defined ZMQ_HAVE_ANDROID
+        //  Following code will guarantee more predictable latencies as it'll
         //  disallow any signal handling in the I/O thread.
         sigset_t signal_set;
         int rc = sigfillset (&signal_set);
         errno_assert (rc == 0);
         rc = pthread_sigmask (SIG_BLOCK, &signal_set, NULL);
         posix_assert (rc);
-    #endif
+#endif
 
         zmq::thread_t *self = (zmq::thread_t*) arg_;   
         self->tfn (self->arg);