Removed dependency on unistd.h for MSVC in apps
diff --git a/programs/ssl/ssl_fork_server.c b/programs/ssl/ssl_fork_server.c
index 9e30451..76c782b 100644
--- a/programs/ssl/ssl_fork_server.c
+++ b/programs/ssl/ssl_fork_server.c
@@ -34,9 +34,12 @@
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
-#include <unistd.h>
#include <signal.h>
+#if !defined(_MSC_VER)
+#include <unistd.h>
+#endif
+
#include "polarssl/config.h"
#include "polarssl/entropy.h"
diff --git a/programs/ssl/ssl_mail_client.c b/programs/ssl/ssl_mail_client.c
index 86b3548..fb2f822 100644
--- a/programs/ssl/ssl_mail_client.c
+++ b/programs/ssl/ssl_mail_client.c
@@ -30,7 +30,14 @@
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
+
+#if !defined(_MSC_VER)
#include <unistd.h>
+#else
+#include <io.h>
+#define read _read
+#define write _write
+#endif
#if defined(_WIN32) || defined(_WIN32_WCE)