1 files changed, 109 insertions, 0 deletions
diff --git a/src/interfaces/libpq++/pgenv.cc b/src/interfaces/libpq++/pgenv.cc
new file mode 100644
index 00000000000..aab4f213eb2
--- /dev/null
+++ b/src/interfaces/libpq++/pgenv.cc
@@ -0,0 +1,109 @@
+/*-------------------------------------------------------------------------
+ *
+ *   FILE
+ *	PGenv.cc
+ *
+ *   DESCRIPTION
+ *      PGenv is the environment for setting up a connection to a 
+ *   postgres backend,  captures the host, port, tty, options and
+ *   authentication type.
+ *
+ *   NOTES
+ *      Currently under construction.
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * IDENTIFICATION
+ *    $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgenv.cc,v 1.1.1.1 1996/07/09 06:22:18 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#include <stdlib.h>
+#include "libpq++.H"
+
+#define DefaultAuth DEFAULT_CLIENT_AUTHSVC 
+#define DefaultPort POSTPORT
+
+// default constructor for PGenv
+// checks the environment variables
+PGenv::PGenv()
+{
+  char* temp;
+
+  pgauth = NULL;
+  pghost = NULL;
+  pgport = NULL;
+  pgoption = NULL;
+  pgtty = NULL;
+
+  setValues(getenv(ENV_DEFAULT_AUTH), getenv(ENV_DEFAULT_HOST),
+            getenv(ENV_DEFAULT_PORT), getenv(ENV_DEFAULT_OPTION),
+	    getenv(ENV_DEFAULT_TTY));
+}
+
+// constructor for given environment
+PGenv::PGenv(char* auth, char* host, char* port, char* option, char* tty)
+{
+  pgauth = NULL;
+  pghost = NULL;
+  pgport = NULL;
+  pgoption = NULL;
+  pgtty = NULL;
+
+  setValues(auth, host, port, option, tty);
+}
+
+// allocate memory and set internal structures to match
+// required environment
+void
+PGenv::setValues(char* auth, char* host, char* port, char* option, char* tty)
+{
+  char* temp;
+
+  temp = (auth) ? auth : DefaultAuth;
+
+  if (pgauth)
+    free(pgauth);
+  pgauth = strdup(temp);
+
+  temp = (host) ? host : DefaultHost;
+
+  if (pghost)
+    free(pghost);
+  pghost = strdup(temp);
+
+  temp = (port) ? port : DefaultPort;
+
+  if (pgport)
+    free(pgport);
+  pgport = strdup(temp);
+  
+  temp = (option) ? option : DefaultOption;
+
+  if (pgoption)
+    free(pgoption);
+  pgoption = strdup(temp);
+
+  temp = (tty) ? tty : DefaultTty;
+
+  if (pgtty)
+    free(pgtty);
+  pgtty = strdup(temp);
+}
+
+// default destrutor
+// frees allocated memory for internal structures
+PGenv::~PGenv()
+{
+  if (pgauth)
+    free(pgauth);
+  if (pghost)
+    free(pghost);
+  if (pgport)
+    free(pgport);
+  if (pgoption)
+    free(pgoption);
+  if (pgtty)
+    free(pgtty);
+}