/usr/include/apt-pkg/acquire-method.h is in libapt-pkg-dev 1.0.1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Description /*{{{*/
// $Id: acquire-method.h,v 1.15.2.1 2003/12/24 23:09:17 mdz Exp $
/* ######################################################################
Acquire Method - Method helper class + functions
These functions are designed to be used within the method task to
ease communication with APT.
##################################################################### */
/*}}}*/
/** \addtogroup acquire
* @{
*
* \file acquire-method.h
*/
#ifndef PKGLIB_ACQUIRE_METHOD_H
#define PKGLIB_ACQUIRE_METHOD_H
#include <apt-pkg/macros.h>
#include <stdarg.h>
#include <time.h>
#include <string>
#include <vector>
#ifndef APT_8_CLEANER_HEADERS
#include <apt-pkg/configuration.h>
#include <apt-pkg/strutl.h>
#endif
class Hashes;
class pkgAcqMethod
{
protected:
struct FetchItem
{
FetchItem *Next;
std::string Uri;
std::string DestFile;
time_t LastModified;
bool IndexFile;
bool FailIgnore;
};
struct FetchResult
{
std::string MD5Sum;
std::string SHA1Sum;
std::string SHA256Sum;
std::string SHA512Sum;
std::vector<std::string> GPGVOutput;
time_t LastModified;
bool IMSHit;
std::string Filename;
unsigned long long Size;
unsigned long long ResumePoint;
void TakeHashes(Hashes &Hash);
FetchResult();
};
// State
std::vector<std::string> Messages;
FetchItem *Queue;
FetchItem *QueueBack;
std::string FailReason;
std::string UsedMirror;
std::string IP;
// Handlers for messages
virtual bool Configuration(std::string Message);
virtual bool Fetch(FetchItem * /*Item*/) {return true;};
// Outgoing messages
void Fail(bool Transient = false);
inline void Fail(const char *Why, bool Transient = false) {Fail(std::string(Why),Transient);};
virtual void Fail(std::string Why, bool Transient = false);
virtual void URIStart(FetchResult &Res);
virtual void URIDone(FetchResult &Res,FetchResult *Alt = 0);
bool MediaFail(std::string Required,std::string Drive);
virtual void Exit() {};
void PrintStatus(char const * const header, const char* Format, va_list &args) const;
public:
enum CnfFlags {SingleInstance = (1<<0),
Pipeline = (1<<1), SendConfig = (1<<2),
LocalOnly = (1<<3), NeedsCleanup = (1<<4),
Removable = (1<<5)};
void Log(const char *Format,...);
void Status(const char *Format,...);
void Redirect(const std::string &NewURI);
int Run(bool Single = false);
inline void SetFailReason(std::string Msg) {FailReason = Msg;};
inline void SetIP(std::string aIP) {IP = aIP;};
pkgAcqMethod(const char *Ver,unsigned long Flags = 0);
virtual ~pkgAcqMethod() {};
private:
APT_HIDDEN void Dequeue();
};
/** @} */
#endif
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