workaround for windows compiler without inet_ntop

virtualsmartcard/configure.ac

@@ -203,6 +203,15 @@ AC_TYPE_SIZE_T
 AC_TYPE_UINT16_T
 AC_CHECK_DECLS([SO_NOSIGPIPE], [], [], [#include <sys/socket.h>])
 AC_CHECK_DECLS([MSG_NOSIGNAL], [], [], [#include <sys/socket.h>])
+if test "${WIN32}" = "yes"
+then
+	saved_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="$CPPFLAGS -D_WIN32_WINNT=0x0600"
+	AC_CHECK_DECLS([inet_ntop], [], [], [#include <ws2tcpip.h>])
+	CPPFLAGS="$saved_CPPFLAGS"
+else
+	AC_CHECK_DECLS([inet_ntop], [], [], [#include <arpa/inet.h>])
+fi
  
 # Checks for library functions.
 AC_FUNC_MALLOC

virtualsmartcard/src/vpcd-config/Makefile.am

@@ -1,4 +1,4 @@
-EXTRA_DIST 	        = qransi.c
+EXTRA_DIST 	        = qransi.c inet_ntop.c
 
 bin_PROGRAMS        = vpcd-config
 

virtualsmartcard/src/vpcd-config/inet_ntop.c

@@ -0,0 +1,15 @@
+/* Taken from https://memset.wordpress.com/2010/10/09/inet_ntop-for-win32/ */
+
+const char* inet_ntop(int af, const void* src, char* dst, int cnt){
+
+    struct sockaddr_in srcaddr;
+
+    memset(&srcaddr, 0, sizeof(struct sockaddr_in));
+    memcpy(&(srcaddr.sin_addr), src, sizeof(srcaddr.sin_addr));
+
+    srcaddr.sin_family = af;
+    if (WSAAddressToString((struct sockaddr*) &srcaddr, sizeof(struct sockaddr_in), 0, dst, (LPDWORD) &cnt) != 0) {
+        return NULL;
+    }
+    return dst;
+}

virtualsmartcard/src/vpcd-config/local-ip.c

@@ -5,6 +5,9 @@
  * Use getsockname and a udp connection
  */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 #include<stdio.h> //printf
 #include<string.h>    //memset
 #include<errno.h> //errno
@@ -12,6 +15,9 @@
 #ifdef _WIN32
 #include<winsock2.h>
 #include<ws2tcpip.h>
+#if defined(HAVE_DECL_INET_NTOP) && ! HAVE_DECL_INET_NTOP
+#include"inet_ntop.c"
+#endif
 #define close(s) closesocket(s)
 #else
 #include<sys/socket.h>    //socket