From 690395a50cd55401a9cfee598638bef482d164bd Mon Sep 17 00:00:00 2001
From: Jeffrey Armstrong <jeff@approximatrix.com>
Date: Thu, 30 Apr 2020 17:58:35 -0400
Subject: Fixed initialization of windows networking.  Fixed some overruns in
 hostent processing.

---
 wsa.f90 | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 wsa.f90

(limited to 'wsa.f90')

diff --git a/wsa.f90 b/wsa.f90
new file mode 100644
index 0000000..c46b097
--- /dev/null
+++ b/wsa.f90
@@ -0,0 +1,46 @@
+module wsa_network
+use iso_c_binding
+implicit none
+
+    integer, parameter::wsa_description_length_plus_1 = 256
+
+    type, bind(c) :: wsadata
+        integer(kind=c_int16_t)::wVersion
+        integer(kind=c_int16_t)::wHighVersion
+        integer(kind=c_short)::iMaxSockets
+        integer(kind=c_short)::iMaxUdpDg
+        
+        type(c_ptr)::lpVendorInfo
+        character(len=1, kind=c_char), dimension(wsa_description_length_plus_1)::szDescription
+        character(len=1, kind=c_char), dimension(wsa_description_length_plus_1)::szSystemStatus
+    end type
+    
+contains
+
+    subroutine startup()
+    use iso_c_binding
+    implicit none
+    
+        interface
+            function wsa_startup(v, p) bind(c, name="WSAStartup")
+            use iso_c_binding
+            integer(kind=c_int16_t), value::v
+            type(c_ptr), value::p
+            integer(kind=c_int)::wsa_startup
+            end function wsa_startup
+        end interface
+        
+        type(wsadata), target::startup_data
+        integer::res
+        
+        ! need to use wVersionRequested = MAKEWORD(2, 2);
+        
+        
+        res = wsa_startup(int(z'0202', kind=c_int16_t), c_loc(startup_data))
+        if(res /= 0) then
+            Print *, "Windows Networking failed to start"
+            Print *, "Error=", res
+            stop
+        end if
+    end subroutine startup
+end module wsa_network
-- 
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