From c4b1c00c419c14e641e46f9f40cbf6d301c998b4 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Fri, 6 Jul 2018 17:11:13 +0300
Subject: Might as well work but going another way

---
 build.rs    |  2 +-
 src/upnp.rs | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++--------
 2 files changed, 60 insertions(+), 9 deletions(-)

diff --git a/build.rs b/build.rs
index 39dfd25..aa0e144 100644
--- a/build.rs
+++ b/build.rs
@@ -1,5 +1,5 @@
 extern crate pkg_config;
 
 fn main() {
-    pkg_config::Config::new().atleast_version("1.0.0").probe("gssdp-1.0").unwrap();
+    pkg_config::Config::new().atleast_version("1.6.25").probe("libupnp").unwrap();
 }
diff --git a/src/upnp.rs b/src/upnp.rs
index b142258..20c7989 100644
--- a/src/upnp.rs
+++ b/src/upnp.rs
@@ -3,19 +3,70 @@ extern crate libc;
 use self::libc::{uint32_t, uint16_t, uint8_t, c_char, c_uchar, c_int, c_void};
 use std::ptr;
 
-pub type GSSDPClient = *mut c_void;
+#[allow(dead_code)]
+#[derive(Debug)]
+#[repr(C)]
+enum EventType {
+    ControlActionRequest,
+    ControlActionComplete,
+    ControlGetVarRequest,
+    ControlGetVarComplete,
+    DiscoveryAdvertisementAlive,
+    DiscoveryAdvertisementByebye,
+    DiscoverySearchResult,
+    DiscoverySearchTimeout,
+    SubscriptionRequest,
+    Received,
+    RenewalComplete,
+    SubscribeComplete,
+    UnsubscribeComplete,
+    AutorenewalFailed,
+    SubscriptionExpired,
+}
+
+const LINE_SIZE: usize = 180;
+
+#[repr(C)]
+struct Discovery {
+    err_code: libc::c_int,
+    expires: libc::c_int,
+    device_id: [libc::c_char; LINE_SIZE],
+    device_type: [libc::c_char; LINE_SIZE],
+    service_type: [libc::c_char; LINE_SIZE],
+    service_ver: [libc::c_char; LINE_SIZE],
+    location: [libc::c_char; LINE_SIZE],
+    os: [libc::c_char; LINE_SIZE],
+    date: [libc::c_char; LINE_SIZE],
+    ext: [libc::c_char; LINE_SIZE],
+    dest_addr: *mut libc::sockaddr_in,
+}
+
+type ClientHandle = libc::c_int;
+
+type ClientCallbackPtr = extern "C" fn(event_type: EventType,
+                                       event: *const libc::c_void,
+                                       cookie: *mut libc::c_void);
 
-#[link(name = "gssdp-1.0")]
-extern {
-    pub fn gssdp_client_new(main_context: *mut c_void, iface: *const c_char, error: *mut c_void) -> GSSDPClient;
-    pub fn gssdp_client_get_interface(client: *mut GSSDPClient) -> *const c_char;
+#[link(name = "upnp")]
+extern "C" {
+    fn UpnpInit(hostIp: *const libc::c_char, destPort: libc::c_ushort) -> libc::c_int;
+    fn UpnpRegisterClient(callback: ClientCallbackPtr,
+                          cookie: *mut libc::c_void,
+                          handle: *mut ClientHandle)
+                          -> libc::c_int;
+    fn UpnpUnRegisterClient(handle: ClientHandle) -> libc::c_int;
+    fn UpnpSearchAsync(handle: ClientHandle,
+                       maxAttempts: libc::c_int,
+                       target: *const libc::c_char,
+                       cookie: *const libc::c_void)
+                       -> libc::c_int;
 }
 
 pub fn discover() {
     println!("Discovering...");
     unsafe {
-        let mut client = gssdp_client_new(ptr::null_mut(), ptr::null(), ptr::null_mut());
-        let iface = gssdp_client_get_interface(&client);
+        let err = UpnpInit(ptr::null(), 0);
+        let target = CString::new("ssdp:all");
+        UpnpSearchAsync(self.handle.client, 1, target.as_ptr(), cookie);
     }
-    println!("Using interface: {}", iface);
 }
-- 
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