Add API for getting the ABI version of the various objects

Signed-off-by: Shawn Webb <shawn.webb@hardenedbsd.org>

include/liblattutil.h

@@ -123,6 +123,14 @@ lattutil_config_path_t *lattutil_find_config(const char **, size_t, const char *
  */
 void lattutil_free_config_path(lattutil_config_path_t **);
 
+/**
+ * Get the ABI version of the config path object
+ *
+ * @param The config path object
+ * @return The version number
+ */
+uint64_t lattutil_config_get_version(lattutil_config_path_t *);
+
 /**
  * Return the fully-qualified path of the config file
  *
@@ -179,6 +187,14 @@ lattutil_log_t *lattutil_log_init(char *, int);
  */
 void lattutil_log_free(lattutil_log_t **);
 
+/**
+ * Get the ABI version number of the log object
+ *
+ * @param The log object
+ * @return The ABI version number
+ */
+uint64_t lattutil_log_get_version(lattutil_log_t *);
+
 /**
  * Initialize syslog-based logging
  *
@@ -234,6 +250,14 @@ int lattutil_log_set_verbosity(lattutil_log_t *, int);
 lattutil_sqlite_ctx_t *lattutil_sqlite_ctx_new(const char *, lattutil_log_t *,
     uint64_t);
 
+/**
+ * Get the ABI version number of the sqlite wrapper
+ *
+ * @param The lattutil sqlite context object
+ * @return The ABI version number
+ */
+uint64_t lattutil_sqlite_get_version(lattutil_sqlite_ctx_t *);
+
 /**
  * Free The SQLite3 context object
  *

src/config.c

@@ -123,6 +123,18 @@ lattutil_free_config_path(lattutil_config_path_t **obj)
 	*obj = NULL; /* Prevent UAF */
 }
 
+EXPORTED_SYM
+uint64_t
+lattutil_config_get_version(lattutil_config_path_t *obj)
+{
+
+	if (obj == NULL) {
+		return (0);
+	}
+
+	return (obj->l_version);
+}
+
 EXPORTED_SYM
 char *
 lattutil_config_path_path(lattutil_config_path_t *path)

src/log-main.c

@@ -80,6 +80,18 @@ lattutil_log_free(lattutil_log_t **logp)
 	*logp = NULL;
 }
 
+EXPORTED_SYM
+uint64_t
+lattutil_log_get_version(lattutil_log_t *logp)
+{
+
+	if (logp == NULL) {
+		return (0);
+	}
+
+	return (logp->ll_version);
+}
+
 EXPORTED_SYM
 bool
 lattutil_log_ready(lattutil_log_t *logp)

src/sqlite3.c

@@ -94,6 +94,18 @@ lattutil_sqlite_ctx_free(lattutil_sqlite_ctx_t **ctx)
 	*ctx = NULL;
 }
 
+EXPORTED_SYM
+uint64_t
+lattutil_sqlite_get_version(lattutil_sqlite_ctx_t *ctx)
+{
+
+	if (ctx == NULL) {
+		return (0);
+	}
+
+	return (ctx->lsq_version);
+}
+
 EXPORTED_SYM
 lattutil_sqlite_query_t *
 lattutil_sqlite_prepare(lattutil_sqlite_ctx_t *ctx, const char *query_string)