#ifndef WALKER_H
#define WALKER_H
#include "remote.h"
struct walker { … };
__attribute__((format (printf, 2, 3)))
void walker_say(struct walker *walker, const char *fmt, ...);
int walker_targets_stdin(char ***target, const char ***write_ref);
void walker_targets_free(int targets, char **target, const char **write_ref);
int walker_fetch(struct walker *impl, int targets, char **target,
const char **write_ref, const char *write_ref_log_details);
void walker_free(struct walker *walker);
struct walker *get_http_walker(const char *url);
#endif