1 files changed, 78 insertions, 0 deletions
diff --git a/src/lib/encoding/confline.h b/src/lib/encoding/confline.h
new file mode 100644
index 0000000000..41f1200947
--- /dev/null
+++ b/src/lib/encoding/confline.h
@@ -0,0 +1,78 @@
+/* Copyright (c) 2001 Matej Pfajfar.
+ * Copyright (c) 2001-2004, Roger Dingledine.
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2018, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file confline.h
+ *
+ * \brief Header for confline.c
+ **/
+
+#ifndef TOR_CONFLINE_H
+#define TOR_CONFLINE_H
+
+struct smartlist_t;
+
+/** Ordinary configuration line. */
+#define CONFIG_LINE_NORMAL 0
+/** Appends to previous configuration for the same option, even if we
+ * would ordinary replace it. */
+#define CONFIG_LINE_APPEND 1
+/* Removes all previous configuration for an option. */
+#define CONFIG_LINE_CLEAR 2
+
+#define MAX_INCLUDE_RECURSION_LEVEL 31
+
+/** A linked list of lines in a config file, or elsewhere */
+typedef struct config_line_t {
+  char *key;
+  char *value;
+  struct config_line_t *next;
+
+  /** What special treatment (if any) does this line require? */
+  unsigned int command:2;
+  /** If true, subsequent assignments to this linelist should replace
+   * it, not extend it.  Set only on the first item in a linelist in an
+   * or_options_t. */
+  unsigned int fragile:1;
+} config_line_t;
+
+void config_line_append(config_line_t **lst,
+                        const char *key, const char *val);
+void config_line_prepend(config_line_t **lst,
+                         const char *key, const char *val);
+config_line_t *config_lines_dup(const config_line_t *inp);
+config_line_t *config_lines_dup_and_filter(const config_line_t *inp,
+                                           const char *key);
+const config_line_t *config_line_find(const config_line_t *lines,
+                                      const char *key);
+int config_lines_eq(config_line_t *a, config_line_t *b);
+int config_count_key(const config_line_t *a, const char *key);
+void config_free_lines_(config_line_t *front);
+#define config_free_lines(front) \
+  do {                           \
+    config_free_lines_(front);   \
+    (front) = NULL;              \
+  } while (0)
+const char *parse_config_line_from_str_verbose(const char *line,
+                                       char **key_out, char **value_out,
+                                       const char **err_out);
+
+int config_get_lines(const char *string, struct config_line_t **result,
+                     int extended);
+
+typedef int (*include_handler_fn)(const char *, int, int,
+                                  struct config_line_t **,
+                                  struct config_line_t **,
+                                  struct smartlist_t *);
+
+int config_get_lines_aux(const char *string, struct config_line_t **result,
+                         int extended,
+                         int allow_include, int *has_include,
+                         struct smartlist_t *opened_lst, int recursion_level,
+                         config_line_t **last,
+                         include_handler_fn handle_include);
+
+#endif /* !defined(TOR_CONFLINE_H) */