Be more robust when handling unexpected lack of data

[onak.git] / onak-conf.h

diff --git a/onak-conf.h b/onak-conf.h
index 52439abc1979692e2ccea40bac554aeddd835d6f..4cf9bfc2be2b89e9ba99fef6159d980375afcdb8 100644 (file)
--- a/onak-conf.h
+++ b/onak-conf.h
@@ -23,6 +23,25 @@
 
 #include "keydb.h"
 
+/**
+ * @brief Backend database configuration.
+ *
+ */
+struct onak_db_config {
+       /** Name, as used to refer to individual backend instances */
+       char *name;
+       /** Backend type [e.g. db4, pg, fs, file] */
+       char *type;
+       /** Location information; directory for file backed, DB name for DBs */
+       char *location;
+       /** Database backend hostname, if appropriate */
+       char *hostname;
+       /** Database backend username, if appropriate */
+       char *username;
+       /** Database backend password, if appropriate */
+       char *password;
+};
+
 /**
  * @brief Runtime configuration for onak.
  *
@@ -51,24 +70,11 @@ struct onak_config {
        /** The path to the directory the keyd socket lives in. */
        char *sock_dir;
 
-       /*
-        * Options for any database backend that needs a directory, be it the
-        * file, fs or db4 options.
-        */
-       /** The path to the directory containing the database files. */
-       char *db_dir;
-       
-       /*
-        * Options for the Postgres backend.
-        */
-       /** The host that Postgres is running on. */
-       char *pg_dbhost;
-       /** The database name. */
-       char *pg_dbname;
-       /** The user we should connect as. */
-       char *pg_dbuser;
-       /** The password for the user. */
-       char *pg_dbpass;
+       /** List of backend configurations */
+       struct ll *backends;
+
+       /* The default backend to use */
+       struct onak_db_config *backend;
 
        /*
         * Options for the dynamic backend.
@@ -79,10 +85,20 @@ struct onak_config {
        char *backends_dir;
 
        /** Pointer to the initialisation function for our loaded DB backend */
-       struct onak_dbctx *(*dbinit)(bool);
+       struct onak_dbctx *(*dbinit)(struct onak_db_config *, bool);
 
        /** Should we verify signature hashes match? */
        bool check_sighash;
+
+       /*
+        * Options used by the email handling script.
+        * None of the C code uses this information, but we should be able
+        * to parse it.
+        */
+       /** Location of the onak binary, so the mail script can find it. */
+       char *bin_dir;
+       /** Where incoming mail gets queue, one file per mail. */
+       char *mail_dir;
 };
 
 /**
@@ -99,9 +115,23 @@ extern struct onak_config config;
  */
 void readconfig(const char *configfile);
 
+/**
+ * @brief write the onak config.
+ * @param configfile the config file to write to.
+ *
+ * Write out the config file. If config file is NULL write it to STDOUT.
+ */
+void writeconfig(const char *configfile);
+
 /**
  * @brief clean up the config when we're shutting down.
  */
 void cleanupconfig(void);
 
+
+/**
+ * @brief Find a specified backend configuration by name.
+ */
+struct onak_db_config *find_db_backend_config(struct ll *backends, char *name);
+
 #endif /* __ONAK_CONF_H_ */