open p_mode now also supported on UNIX

fileop.cpp

@@ -232,7 +232,7 @@ int fileop::open(std::string fn, int& fd, int oflag, int shflag, int pmode) {
     fd = tmfd;
     return fd == -1 ? err : 0;
 #else
-    fd = ::open(fn.c_str(), oflag);
+    fd = ::open(fn.c_str(), oflag, pmode);
     return fd == -1 ? errno : 0;
 #endif
 }

fileop.h

@@ -51,7 +51,7 @@ namespace fileop {
      * @param fd file descriptor. -1 if error occured.
      * @param oflag The kind of operations allowed.
      * @param shflag The kind of sharing allowed. (Windows Only)
-     * @param pmode Permission mode. (Windows Only)
+     * @param pmode Permission mode.
      * @return errno
     */
     int open(std::string fn, int& fd, int oflag, int shflag = 0x10, int pmode = 0);