Add brackets around function macro arguments
diff --git a/programs/ssl/ssl_mail_client.c b/programs/ssl/ssl_mail_client.c
index 8958f18..8a7850e 100644
--- a/programs/ssl/ssl_mail_client.c
+++ b/programs/ssl/ssl_mail_client.c
@@ -57,8 +57,10 @@
#include <unistd.h>
#else
#include <io.h>
-#define read(fd, buf, len) _read( fd, (void *)buf, (unsigned int)len )
-#define write(fd, buf, len) _write( fd, (const void *)buf, (unsigned int)len )
+#define read(fd, buf, len) \
+ _read( fd, (void *)( buf ), (unsigned int)( len ) )
+#define write(fd, buf, len) \
+ _write( fd, (const void *)( buf ), (unsigned int)( len ) )
#endif
#if defined(_WIN32) || defined(_WIN32_WCE)