extern int line_id(char **str, int *start_out, int *end_out);
extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n);
extern int line_get_config(char *dev, struct line *lines,
extern int line_id(char **str, int *start_out, int *end_out);
extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n);
extern int line_get_config(char *dev, struct line *lines,