lines. */
extern void find_source_lines (struct symtab *s, int desc);
+/* Return the first line listed by print_source_lines.
+ Used by command interpreters to request listing from
+ a previous point. */
+extern int get_first_line_listed (void);
+
+/* Return the default number of lines to print with commands like the
+ cli "list". The caller of print_source_lines must use this to
+ calculate the end line and use it in the call to print_source_lines
+ as it does not automatically use this value. */
+extern int get_lines_to_list (void);
+
+/* Return the current source file for listing and next line to list.
+ NOTE: The returned sal pc and end fields are not valid. */
+extern void clear_current_source_symtab_and_line (void);
+
+/* Return the current source file for listing and next line to list.
+ If a file is not set, try and get a default.
+ It may err out if a default cannot be determined.
+ Depending on where it is called, it can recurse as the process of
+ determining a new default may call the caler!
+ Use get_current_source_symtab_and_line instead to get whatever
+ we have without erroring out or trying to get a default.
+ NOTE: The returned sal pc and end fields are not valid. */
+extern struct symtab_and_line get_current_source_symtab_and_line (void);
+
+/* Return the current default file for listing and next line to list
+ (the returned sal pc and end fields are not valid.)
+ and set the surrent default to whatever is in SAL */
+extern struct symtab_and_line get_current_or_default_source_symtab_and_line (void);
+
+/* Reset any information stored about a default file and line to print. */
+extern struct symtab_and_line set_current_source_symtab_and_line (struct symtab_and_line *);
#endif