From 1ce5786aaa5fc4e4e88dfb73e08d3ac766856495 Mon Sep 17 00:00:00 2001
From: "bryner%uiuc.edu" <bryner%uiuc.edu>
Date: Sun, 4 Feb 2001 01:16:13 +0000
Subject: [PATCH] Bug 67530 - failure sending mail if PSM not installed. 
 r/sr=mscott.

---
 netwerk/base/src/nsSocketTransport.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/netwerk/base/src/nsSocketTransport.cpp b/netwerk/base/src/nsSocketTransport.cpp
index d9b5d7edaf9c..c291d4ec4fd0 100644
--- a/netwerk/base/src/nsSocketTransport.cpp
+++ b/netwerk/base/src/nsSocketTransport.cpp
@@ -463,6 +463,10 @@ nsresult nsSocketTransport::Init(nsSocketTransportService* aService,
             rv = NS_ERROR_OUT_OF_MEMORY;
     }
     
+    nsCOMPtr<nsISocketProviderService> spService(do_GetService(kSocketProviderService));
+    if (!spService)
+      rv = NS_ERROR_FAILURE;
+
     if (NS_SUCCEEDED(rv) && aSocketTypeCount) {
         mSocketTypes = (char**) nsMemory::Alloc(aSocketTypeCount * sizeof(char*));
         if (!mSocketTypes)
@@ -476,6 +480,15 @@ nsresult nsSocketTransport::Init(nsSocketTransportService* aService,
 #ifdef DEBUG
                 LOG(("nsSocketTransport: pushing io layer: %s\n", socketType));
 #endif
+
+                // Before doing anything else, make sure we can get a
+                // provider for this type of socket.
+
+                nsCOMPtr<nsISocketProvider> sProvider;
+                rv = spService->GetSocketProvider(socketType, getter_AddRefs(sProvider));
+                if (NS_FAILED(rv))
+                  break;
+
                 mSocketTypes[mSocketTypeCount] = nsCRT::strdup(socketType);
                 if (!mSocketTypes[mSocketTypeCount]) {
                     rv = NS_ERROR_OUT_OF_MEMORY;