Add deprecation for configuration options that need to go away.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/or/confparse.h b/src/or/confparse.h
index ca6fb5ec43..415d680d2e 100644
--- a/src/or/confparse.h
+++ b/src/or/confparse.h
@@ -48,6 +48,11 @@ typedef struct config_abbrev_t {
   int warn;
 } config_abbrev_t;
 
+typedef struct config_deprecation_t {
+  const char *name;
+  const char *why_deprecated;
+} config_deprecation_t;
+
 /* Handy macro for declaring "In the config file or on the command line,
  * you can abbreviate <b>tok</b>s as <b>tok</b>". */
 #define PLURAL(tok) { #tok, #tok "s", 0, 0 }
@@ -76,6 +81,7 @@ typedef struct config_format_t {
   off_t magic_offset; /**< Offset of the magic value within the struct. */
   config_abbrev_t *abbrevs; /**< List of abbreviations that we expand when
                              * parsing this format. */
+  config_deprecation_t *deprecations; /** List of deprecated options */
   config_var_t *vars; /**< List of variables we recognize, their default
                        * values, and where we stick them in the structure. */
   validate_fn_t validate_fn; /**< Function to validate config. */
@@ -125,6 +131,8 @@ void config_free_lines(config_line_t *front);
 const char *config_expand_abbrev(const config_format_t *fmt,
                                  const char *option,
                                  int command_line, int warn_obsolete);
+void warn_deprecated_option(const char *what, const char *why);
+
 
 #endif