[BB#89] Don't recompile regular expressions
This is a modification of a patch originally written by John van der Kamp <john@kirika.demon.nl> at <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=579427#12> The modification was done by the committer.
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							@ -163,6 +163,8 @@ static HANDLE_FUNC (handle_upstream);
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static HANDLE_FUNC (handle_upstream_no);
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#endif
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static void config_free_regex (void);
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/*
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 * This macro can be used to make standard directives in the form:
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 *   directive arguments [arguments ...]
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@ -317,7 +319,8 @@ static void free_config (struct config_s *conf)
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 *
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 * Returns 0 on success; negative upon failure.
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 */
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static int config_compile (void)
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int
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config_compile_regex (void)
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{
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        unsigned int i, r;
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@ -335,9 +338,30 @@ static int config_compile (void)
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                if (r)
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                        return r;
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        }
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        atexit (config_free_regex);
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        return 0;
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}
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/*
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 * Frees pre-compiled regular expressions used by the configuration
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 * file. This function is registered to be automatically called at exit.
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 */
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static void
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config_free_regex (void)
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{
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        unsigned int i;
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        for (i = 0; i < ndirectives; i++) {
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                if (directives[i].cre) {
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                        regfree (directives[i].cre);
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                        safefree (directives[i].cre);
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                        directives[i].cre = NULL;
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                }
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        }
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}
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/*
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 * Attempt to match the supplied line with any of the configuration
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 * regexes defined above.  If a match is found, call the handler
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@ -397,7 +421,7 @@ static int load_config_file (const char *config_fname, struct config_s *conf)
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                goto done;
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        }
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        if (config_compile () || config_parse (conf, config_file)) {
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        if (config_parse (conf, config_file)) {
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                fprintf (stderr, "Unable to parse config file. "
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                         "Not starting.\n");
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                goto done;
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@ -115,4 +115,6 @@ struct config_s {
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extern int reload_config_file (const char *config_fname, struct config_s *conf,
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                               struct config_s *defaults);
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int config_compile_regex (void);
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#endif
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@ -364,6 +364,11 @@ main (int argc, char **argv)
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        log_message (LOG_INFO, "Initializing " PACKAGE " ...");
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        ret = config_compile_regex();
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        if (ret != 0) {
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                exit (EX_SOFTWARE);
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        }
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        initialize_config_defaults (&config_defaults);
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        process_cmdline (argc, argv, &config_defaults);
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