Check return value from asprintf instead of string != NULL since it

undefined behavior on Linux. From Björn Sandell


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@16227 ec53bebd-3082-4978-b11e-865c3cabbd6b

appl/test/gssapi_client.c

@@ -115,7 +115,9 @@ proto (int sock, const char *hostname, const char *service)
 
     name_token.length = asprintf ((char **)&name_token.value,
 				  "%s@%s", service, hostname);
-
+    if (name_token.length == -1)
+	errx(1, "malloc - out of memory");
+	
     maj_stat = gss_import_name (&min_stat,
 				&name_token,
 				GSS_C_NT_HOSTBASED_SERVICE,