move ipv6supported from listen.c to utils.c

src/listen.c

@@ -20,6 +20,7 @@
 #include "interface.h"
 #include "conf.h"
 #include "log.h"
+#include "utils.h"
 
 #include <unistd.h>
 #include <stdio.h>
@@ -42,16 +43,6 @@
 
 int listenSocket;
 
-#ifdef HAVE_IPV6
-int ipv6Supported() {
-	int s;
-	s = socket(AF_INET6,SOCK_STREAM,0);
-	if(s == -1) return 0;
-	close(s);
-	return 1;
-}
-#endif
-
 int establish(unsigned short port) {
 	int allowReuse = ALLOW_REUSE;
 	int sock;

src/utils.c

@@ -22,6 +22,7 @@
 #include <string.h>
 #include <ctype.h>
 #include <sys/types.h>
+#include <sys/socket.h>
 #include <sys/select.h>
 #include <sys/time.h>
 #include <unistd.h>
@@ -57,4 +58,16 @@ void my_usleep(long usec) {
 
 	select(0,NULL,NULL,NULL,&tv);
 }
+
+int ipv6Supported() {
+#ifdef HAVE_IPV6
+	int s;
+	s = socket(AF_INET6,SOCK_STREAM,0);
+	if(s == -1) return 0;
+	close(s);
+	return 1;
+#endif
+        return 0;
+}
+
 /* vim:set shiftwidth=4 tabstop=8 expandtab: */

src/utils.h

@@ -31,5 +31,7 @@ void stripReturnChar(char * string);
 
 void my_usleep(long usec);
 
+int ipv6Supported();
+
 #endif
 /* vim:set shiftwidth=4 tabstop=8 expandtab: */