SSPI related code: Unicode support for WinCE

SSPI related code now compiles with ANSI and WCHAR versions of security
methods (WinCE requires WCHAR versions of methods).

Pulled UTF8 to WCHAR conversion methods out of idn_win32.c into their own file.

curl_sasl.c - include curl_memory.h to use correct memory functions.

getenv.c and telnet.c - WinCE compatibility fix

With some committer adjustments

lib/http_negotiate_sspi.c

@@ -33,6 +33,7 @@
 #include "curl_base64.h"
 #include "http_negotiate.h"
 #include "curl_memory.h"
+#include "curl_multibyte.h"
 
 #define _MPRINTF_REPLACE /* use our functions only */
 #include <curl/mprintf.h>
@@ -90,7 +91,7 @@ int Curl_input_negotiate(struct connectdata *conn, bool proxy,
   SecBuffer         in_sec_buff;
   ULONG             context_attributes;
   TimeStamp         lifetime;
-
+  LPTSTR            sname;
   int ret;
   size_t len = 0, input_token_len = 0;
   bool gss = FALSE;
@@ -137,7 +138,7 @@ int Curl_input_negotiate(struct connectdata *conn, bool proxy,
 
   if(!neg_ctx->output_token) {
     PSecPkgInfo SecurityPackage;
-    ret = s_pSecFn->QuerySecurityPackageInfo((SEC_CHAR *)"Negotiate",
+    ret = s_pSecFn->QuerySecurityPackageInfo(TEXT("Negotiate"),
                                              &SecurityPackage);
     if(ret != SEC_E_OK)
       return -1;
@@ -166,7 +167,7 @@ int Curl_input_negotiate(struct connectdata *conn, bool proxy,
       return -1;
 
     neg_ctx->status =
-      s_pSecFn->AcquireCredentialsHandle(NULL, (SEC_CHAR *)"Negotiate",
+      s_pSecFn->AcquireCredentialsHandle(NULL, TEXT("Negotiate"),
                                          SECPKG_CRED_OUTBOUND, NULL, NULL,
                                          NULL, NULL, neg_ctx->credentials,
                                          &lifetime);
@@ -205,10 +206,18 @@ int Curl_input_negotiate(struct connectdata *conn, bool proxy,
     in_sec_buff.pvBuffer   = input_token;
   }
 
+#ifdef UNICODE
+  sname = Curl_convert_UTF8_to_wchar(neg_ctx->server_name);
+  if(!wserver)
+    return CURLE_OUT_OF_MEMORY;
+#else
+  sname = neg_ctx->server_name;
+#endif
+
   neg_ctx->status = s_pSecFn->InitializeSecurityContext(
     neg_ctx->credentials,
     input_token ? neg_ctx->context : 0,
-    neg_ctx->server_name,
+    sname,
     ISC_REQ_CONFIDENTIALITY,
     0,
     SECURITY_NATIVE_DREP,
@@ -219,6 +228,10 @@ int Curl_input_negotiate(struct connectdata *conn, bool proxy,
     &context_attributes,
     &lifetime);
 
+#ifdef UNICODE
+  free(sname);
+#endif
+
   if(GSS_ERROR(neg_ctx->status))
     return -1;