1 files changed, 53 insertions, 0 deletions
diff --git a/src/common/confline.h b/src/common/confline.h
new file mode 100644
index 0000000000..eb863e8fd8
--- /dev/null
+++ b/src/common/confline.h
@@ -0,0 +1,53 @@
+/* Copyright (c) 2001 Matej Pfajfar.
+ * Copyright (c) 2001-2004, Roger Dingledine.
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2017, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+#ifndef TOR_CONFLINE_H
+#define TOR_CONFLINE_H
+
+/** 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);
+int config_get_lines(const char *string, config_line_t **result, int extended);
+int config_get_lines_include(const char *string, config_line_t **result,
+                             int extended, int *has_include);
+void config_free_lines(config_line_t *front);
+const char *parse_config_line_from_str_verbose(const char *line,
+                                       char **key_out, char **value_out,
+                                       const char **err_out);
+#endif
+