/* ----------------------------------------------------------------------
* Functions to save and restore PuTTY sessions. Note that this is
* only the low-level code to do the reading and writing. The
- * higher-level code that translates a Config structure into a set
- * of (key,value) pairs is elsewhere, since it doesn't (mostly)
- * change between platforms.
+ * higher-level code that translates an internal Conf structure into
+ * a set of (key,value) pairs in their external storage format is
+ * elsewhere, since it doesn't (mostly) change between platforms.
*/
/*
* A given key will be written at most once while saving a session.
* Keys may be up to 255 characters long. String values have no length
* limit.
+ *
+ * Any returned error message must be freed after use.
*/
-void *open_settings_w(const char *sessionname);
+void *open_settings_w(const char *sessionname, char **errmsg);
void write_setting_s(void *handle, const char *key, const char *value);
void write_setting_i(void *handle, const char *key, int value);
-void write_setting_filename(void *handle, const char *key, Filename value);
-void write_setting_fontspec(void *handle, const char *key, FontSpec font);
+void write_setting_filename(void *handle, const char *key, Filename *value);
+void write_setting_fontspec(void *handle, const char *key, FontSpec *font);
void close_settings_w(void *handle);
/*
* number of calls to read_setting_s() and read_setting_i(), and
* then close it using close_settings_r().
*
- * read_setting_s() writes into the provided buffer and returns a
- * pointer to the same buffer.
+ * read_setting_s() returns a dynamically allocated string which the
+ * caller must free. read_setting_filename() and
+ * read_setting_fontspec() likewise return dynamically allocated
+ * structures.
*
* If a particular string setting is not present in the session,
* read_setting_s() can return NULL, in which case the caller
* should invent a sensible default. If an integer setting is not
* present, read_setting_i() returns its provided default.
- *
- * read_setting_filename() and read_setting_fontspec() each read into
- * the provided buffer, and return zero if they failed to.
*/
void *open_settings_r(const char *sessionname);
-char *read_setting_s(void *handle, const char *key, char *buffer, int buflen);
+char *read_setting_s(void *handle, const char *key);
int read_setting_i(void *handle, const char *key, int defvalue);
-int read_setting_filename(void *handle, const char *key, Filename *value);
-int read_setting_fontspec(void *handle, const char *key, FontSpec *font);
+Filename *read_setting_filename(void *handle, const char *key);
+FontSpec *read_setting_fontspec(void *handle, const char *key);
void close_settings_r(void *handle);
/*