Plumbing ownership further; some things became C++

dpi/dpiutil.cc

@@ -18,7 +18,7 @@
 #include <errno.h>
 #include <sys/socket.h>
 
-#include "dpiutil.h"
+#include "dpiutil.hh"
 
 /*
  * Debugging macros
@@ -33,7 +33,7 @@
  * Escape URI characters in 'esc_set' as %XX sequences.
  * Return value: New escaped string.
  */
-char *Escape_uri_str(const char *str, const char *p_esc_set)
+std::string Escape_uri_str(const char *str, const char *p_esc_set)
 {
    static const char *esc_set, *hex = "0123456789ABCDEF";
    char *p;