X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Fconfigfile.c;h=5472de4e3e18d3a927289f9d6c5425ee88b70386;hb=2cea8075c666a6c6c7d6e1b4f95e1bee6f3803ac;hp=76e542178ab5e4b7a43e1bb6c59049294f8c5852;hpb=424db8460223d3fb13cf96ba0e93b246c74639dc;p=collectd.git diff --git a/src/configfile.c b/src/configfile.c index 76e54217..5472de4e 100644 --- a/src/configfile.c +++ b/src/configfile.c @@ -1,6 +1,6 @@ /** * collectd - src/configfile.c - * Copyright (C) 2005 Florian octo Forster + * Copyright (C) 2005,2006 Florian octo Forster * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -24,8 +24,10 @@ #include "libconfig/libconfig.h" +#include "common.h" #include "plugin.h" #include "configfile.h" +#include "network.h" #include "utils_debug.h" #define SHORTOPT_NONE 0 @@ -35,17 +37,22 @@ #define ERR_NEEDS_ARG "Section `%s' needs an argument.\n" #define ERR_NEEDS_SECTION "`%s' can only be used within a section.\n" -#ifdef HAVE_LIBRRD +#define ESCAPE_NULL(str) ((str) == NULL ? "(null)" : (str)) + +#define DEBUG_CALLBACK(shortvar, var, arguments, value) \ + DBG("shortvar = %s, var = %s, arguments = %s, value = %s, ...", \ + ESCAPE_NULL(shortvar), \ + ESCAPE_NULL(var), \ + ESCAPE_NULL(arguments), \ + ESCAPE_NULL(value)) + extern int operating_mode; -#else -static int operating_mode = MODE_CLIENT; -#endif typedef struct cf_callback { - char *type; - int (*callback) (char *, char *); - char **keys; + const char *type; + int (*callback) (const char *, const char *); + const char **keys; int keys_num; struct cf_callback *next; } cf_callback_t; @@ -59,12 +66,15 @@ typedef struct cf_mode_item int mode; } cf_mode_item_t; +/* TODO + * - LogFile + */ static cf_mode_item_t cf_mode_list[] = { - {"Server", NULL, MODE_CLIENT }, - {"Port", NULL, MODE_CLIENT | MODE_SERVER }, - {"PIDFile", NULL, MODE_CLIENT | MODE_SERVER | MODE_LOCAL}, - {"DataDir", NULL, MODE_SERVER | MODE_LOCAL} + {"TimeToLive", NULL, MODE_CLIENT }, + {"PIDFile", NULL, MODE_CLIENT | MODE_SERVER | MODE_LOCAL | MODE_LOG }, + {"DataDir", NULL, MODE_CLIENT | MODE_SERVER | MODE_LOCAL | MODE_LOG }, + {"LogFile", NULL, MODE_CLIENT | MODE_SERVER | MODE_LOCAL | MODE_LOG } }; static int cf_mode_num = 4; @@ -72,14 +82,14 @@ static int nesting_depth = 0; static char *current_module = NULL; /* `cf_register' needs this prototype */ -int cf_callback_plugin_dispatch (const char *, const char *, const char *, - const char *, lc_flags_t, void *); +static int cf_callback_plugin_dispatch (const char *, const char *, + const char *, const char *, lc_flags_t, void *); /* * Functions to handle register/unregister, search, and other plugin related * stuff */ -cf_callback_t *cf_search (char *type) +static cf_callback_t *cf_search (char *type) { cf_callback_t *cf_cb; @@ -93,7 +103,7 @@ cf_callback_t *cf_search (char *type) return (cf_cb); } -int cf_dispatch (char *type, const char *orig_key, const char *orig_value) +static int cf_dispatch (char *type, const char *orig_key, const char *orig_value) { cf_callback_t *cf_cb; char *key; @@ -101,9 +111,14 @@ int cf_dispatch (char *type, const char *orig_key, const char *orig_value) int ret; int i; + DBG ("type = %s, key = %s, value = %s", + ESCAPE_NULL(type), + ESCAPE_NULL(orig_key), + ESCAPE_NULL(orig_value)); + if ((cf_cb = cf_search (type)) == NULL) { - syslog (LOG_WARNING, "Plugin `%s' did not register a callback.\n", type); + syslog (LOG_WARNING, "Plugin `%s' did not register a callback.", type); return (-1); } @@ -127,15 +142,17 @@ int cf_dispatch (char *type, const char *orig_key, const char *orig_value) } if (i >= cf_cb->keys_num) - syslog (LOG_WARNING, "Plugin `%s' did not register for value `%s'.\n", type, key); + syslog (LOG_WARNING, "Plugin `%s' did not register for value `%s'.", type, key); free (key); free (value); + DBG ("return (%i)", ret); + return (ret); } -void cf_unregister (char *type) +void cf_unregister (const char *type) { cf_callback_t *this, *prev; @@ -154,9 +171,9 @@ void cf_unregister (char *type) } } -void cf_register (char *type, - int (*callback) (char *, char *), - char **keys, int keys_num) +void cf_register (const char *type, + int (*callback) (const char *, const char *), + const char **keys, int keys_num) { cf_callback_t *cf_cb; char buf[64]; @@ -190,7 +207,7 @@ void cf_register (char *type, } else { - DBG ("Key was truncated: `%s'", keys[i]); + DBG ("Key was truncated: `%s'", ESCAPE_NULL(keys[i])); } } } @@ -198,7 +215,7 @@ void cf_register (char *type, /* * Other query functions */ -char *cf_get_mode_option (const char *key) +char *cf_get_option (const char *key, char *def) { int i; @@ -207,8 +224,12 @@ char *cf_get_mode_option (const char *key) if ((cf_mode_list[i].mode & operating_mode) == 0) continue; - if (strcasecmp (cf_mode_list[i].key, key) == 0) + if (strcasecmp (cf_mode_list[i].key, key) != 0) + continue; + + if (cf_mode_list[i].value != NULL) return (cf_mode_list[i].value); + return (def); } return (NULL); @@ -220,61 +241,54 @@ char *cf_get_mode_option (const char *key) /* * `cf_callback_mode' - * Start/end the `mode' section + * Chose the `operating_mode' * - * - * ... - * + * Mode `value' */ -int cf_callback_mode (const char *shortvar, const char *var, +static int cf_callback_mode (const char *shortvar, const char *var, const char *arguments, const char *value, lc_flags_t flags, void *extra) { - DBG ("shortvar = %s, var = %s, arguments = %s, value = %s, ...", - shortvar, var, arguments, value); + DEBUG_CALLBACK (shortvar, var, arguments, value); - if (flags == LC_FLAGS_SECTIONSTART) + if (strcasecmp (value, "Client") == 0) + operating_mode = MODE_CLIENT; +#if HAVE_LIBRRD + else if (strcasecmp (value, "Server") == 0) + operating_mode = MODE_SERVER; + else if (strcasecmp (value, "Local") == 0) + operating_mode = MODE_LOCAL; +#else /* !HAVE_LIBRRD */ + else if (strcasecmp (value, "Server") == 0) { - if (nesting_depth != 0) - { - fprintf (stderr, ERR_NOT_NESTED); - return (LC_CBRET_ERROR); - } - - if (arguments == NULL) - { - fprintf (stderr, ERR_NEEDS_ARG, shortvar); - return (LC_CBRET_ERROR); - } - - nesting_depth++; - - if (((operating_mode == MODE_CLIENT) - && (strcasecmp (arguments, "Client") == 0)) - || ((operating_mode == MODE_SERVER) - && (strcasecmp (arguments, "Server") == 0)) - || ((operating_mode == MODE_LOCAL) - && (strcasecmp (arguments, "Local") == 0))) - { - return (LC_CBRET_OKAY); - } - else - { - return (LC_CBRET_IGNORESECTION); - } + fprintf (stderr, "Invalid mode `Server': " + "You need to link against librrd for this " + "mode to be available.\n"); + syslog (LOG_ERR, "Invalid mode `Server': " + "You need to link against librrd for this " + "mode to be available."); + return (LC_CBRET_ERROR); } - else if (flags == LC_FLAGS_SECTIONEND) + else if (strcasecmp (value, "Local") == 0) { - nesting_depth--; - - return (LC_CBRET_OKAY); + fprintf (stderr, "Invalid mode `Local': " + "You need to link against librrd for this " + "mode to be available.\n"); + syslog (LOG_ERR, "Invalid mode `Local': " + "You need to link against librrd for this " + "mode to be available."); + return (LC_CBRET_ERROR); } +#endif + else if (strcasecmp (value, "Log") == 0) + operating_mode = MODE_LOG; else { - fprintf (stderr, ERR_SECTION_ONLY, shortvar); + syslog (LOG_ERR, "Invalid value for config option `Mode': `%s'", value); return (LC_CBRET_ERROR); } + return (LC_CBRET_OKAY); } /* @@ -285,26 +299,24 @@ int cf_callback_mode (const char *shortvar, const char *var, * PluginDir `value' * */ -int cf_callback_mode_plugindir (const char *shortvar, const char *var, +static int cf_callback_mode_plugindir (const char *shortvar, const char *var, const char *arguments, const char *value, lc_flags_t flags, void *extra) { - DBG ("shortvar = %s, var = %s, arguments = %s, value = %s, ...", - shortvar, var, arguments, value); + DEBUG_CALLBACK (shortvar, var, arguments, value); plugin_set_dir (value); return (LC_CBRET_OKAY); } -int cf_callback_mode_option (const char *shortvar, const char *var, +static int cf_callback_mode_option (const char *shortvar, const char *var, const char *arguments, const char *value, lc_flags_t flags, void *extra) { cf_mode_item_t *item; - DBG ("shortvar = %s, var = %s, arguments = %s, value = %s, ...", - shortvar, var, arguments, value); + DEBUG_CALLBACK (shortvar, var, arguments, value); if (extra == NULL) { @@ -349,18 +361,11 @@ int cf_callback_mode_option (const char *shortvar, const char *var, * LoadPlugin `value' * */ -int cf_callback_mode_loadmodule (const char *shortvar, const char *var, +static int cf_callback_mode_loadmodule (const char *shortvar, const char *var, const char *arguments, const char *value, lc_flags_t flags, void *extra) { - DBG ("shortvar = %s, var = %s, arguments = %s, value = %s, ...", - shortvar, var, arguments, value); - - if (nesting_depth == 0) - { - fprintf (stderr, ERR_NEEDS_SECTION, shortvar); - return (LC_CBRET_ERROR); - } + DEBUG_CALLBACK (shortvar, var, arguments, value); if (plugin_load (value)) syslog (LOG_ERR, "plugin_load (%s): failed to load plugin", value); @@ -370,29 +375,6 @@ int cf_callback_mode_loadmodule (const char *shortvar, const char *var, return (LC_CBRET_OKAY); } -/* XXX think about how to do the command line stuff */ -int cf_callback_mode_switch (const char *shortvar, const char *var, - const char *arguments, const char *value, lc_flags_t flags, - void *extra) -{ - DBG ("shortvar = %s, var = %s, arguments = %s, value = %s, ...", - shortvar, var, arguments, value); - - if (strcasecmp (shortvar, "Client") == 0) - operating_mode = MODE_CLIENT; - else if (strcasecmp (shortvar, "Local") == 0) - operating_mode = MODE_LOCAL; - else if (strcasecmp (shortvar, "Server") == 0) - operating_mode = MODE_SERVER; - else - { - fprintf (stderr, "cf_callback_mode_switch: Wrong mode!\n"); - return (LC_CBRET_ERROR); - } - - return (LC_CBRET_OKAY); -} - /* * `cf_callback_plugin' * Start/end section `plugin' @@ -401,12 +383,11 @@ int cf_callback_mode_switch (const char *shortvar, const char *var, * ... * */ -int cf_callback_plugin (const char *shortvar, const char *var, +static int cf_callback_plugin (const char *shortvar, const char *var, const char *arguments, const char *value, lc_flags_t flags, void *extra) { - DBG ("shortvar = %s, var = %s, arguments = %s, value = %s, ...", - shortvar, var, arguments, value); + DEBUG_CALLBACK (shortvar, var, arguments, value); if (flags == LC_FLAGS_SECTIONSTART) { @@ -462,12 +443,11 @@ int cf_callback_plugin (const char *shortvar, const char *var, * `var' `value' * */ -int cf_callback_plugin_dispatch (const char *shortvar, const char *var, +static int cf_callback_plugin_dispatch (const char *shortvar, const char *var, const char *arguments, const char *value, lc_flags_t flags, void *extra) { - DBG ("shortvar = %s, var = %s, arguments = %s, value = %s, ...", - shortvar, var, arguments, value); + DEBUG_CALLBACK (shortvar, var, arguments, value); if ((nesting_depth == 0) || (current_module == NULL)) { @@ -482,50 +462,54 @@ int cf_callback_plugin_dispatch (const char *shortvar, const char *var, return (LC_CBRET_OKAY); } -int cf_read (char *filename) +static void cf_init (void) { + static int run_once = 0; int i; - if (filename == NULL) - filename = CONFIGFILE; - - lc_register_callback ("Client", 'c', LC_VAR_NONE, - cf_callback_mode_switch, NULL); - lc_register_callback ("Local", 'l', LC_VAR_NONE, - cf_callback_mode_switch, NULL); - lc_register_callback ("Server", 's', LC_VAR_NONE, - cf_callback_mode_switch, NULL); + if (run_once != 0) + return; + run_once = 1; - lc_register_callback ("Mode", SHORTOPT_NONE, LC_VAR_SECTION, + lc_register_callback ("Mode", SHORTOPT_NONE, LC_VAR_STRING, cf_callback_mode, NULL); lc_register_callback ("Plugin", SHORTOPT_NONE, LC_VAR_SECTION, cf_callback_plugin, NULL); - lc_register_callback ("Mode.PluginDir", 'P', + lc_register_callback ("PluginDir", SHORTOPT_NONE, LC_VAR_STRING, cf_callback_mode_plugindir, NULL); - lc_register_callback ("Mode.LoadPlugin", SHORTOPT_NONE, + lc_register_callback ("LoadPlugin", SHORTOPT_NONE, LC_VAR_STRING, cf_callback_mode_loadmodule, NULL); for (i = 0; i < cf_mode_num; i++) { - char longvar[256]; cf_mode_item_t *item; item = &cf_mode_list[i]; - if (snprintf (longvar, 256, "Mode.%s", item->key) >= 256) - continue; - - lc_register_callback (longvar, SHORTOPT_NONE, LC_VAR_STRING, + lc_register_callback (item->key, SHORTOPT_NONE, LC_VAR_STRING, cf_callback_mode_option, (void *) item); } +} + +int cf_read (char *filename) +{ + cf_init (); + if (filename == NULL) + filename = CONFIGFILE; + + DBG ("Starting to parse file `%s'", filename); + + /* int lc_process_file(const char *appname, const char *pathname, lc_conf_type_t type); */ if (lc_process_file ("collectd", filename, LC_CONF_APACHE)) { syslog (LOG_ERR, "lc_process_file (%s): %s", filename, lc_geterrstr ()); return (-1); } + DBG ("Done parsing file `%s'", filename); + /* free memory and stuff */ lc_cleanup ();