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#ifndef __EYETIL_H
#define __EYETIL_H
#include <vector>
#include <string>
#include <archive.h>
#include <archive_entry.h>
#include "openssl/md5.h"
class binary_t : public std::vector<unsigned char> {
public:
binary_t() { }
binary_t(size_type n) : std::vector<unsigned char>(n) { }
binary_t(const std::string& h) { from_hex(h); }
binary_t(const void *d,size_t s) { from_data(d,s); }
binary_t& from_hex(const std::string& h);
binary_t& from_data(const void *d,size_t s);
binary_t& make_nonce();
std::string hex() const;
binary_t md5() const;
};
struct md5_digester {
MD5_CTX ctx;
md5_digester() { init(); }
void init();
void update(const void *d,size_t l);
binary_t final();
template<typename T>
void update(const T& x) { update(&x,sizeof(x)); }
template<typename T>
struct update_iterator : public std::iterator<std::output_iterator_tag,T,void,T*,T&> {
md5_digester *d;
update_iterator(md5_digester *d_) : d(d_) { }
update_iterator(const update_iterator& x) : d(x.d) { }
update_iterator& operator*() { return *this; }
update_iterator& operator++() { return *this; }
update_iterator& operator++(int) { return *this; }
update_iterator& operator=(const T& x) {
d->update(x); return *this;
}
};
template<typename T>
update_iterator<T> updater() {
return update_iterator<T>(this);
}
};
template<> inline void md5_digester::update<binary_t>(const binary_t& x) {
update((const unsigned char*)&(x.front()),x.size());
}
class tmpdir_t {
public:
std::string dir;
tmpdir_t(const std::string& dt);
~tmpdir_t();
std::string get_file(const std::string& f);
};
class tarchive_t {
public:
struct archive *a;
struct archive_entry *e;
tarchive_t(void *p,size_t s);
~tarchive_t();
bool read_next_header();
std::string entry_pathname();
bool read_data_into_fd(int fd);
};
binary_t integrity_digest(const void *ptr,size_t size,
const std::string& ukey);
#endif /* __EYETIL_H */
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