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authorJulian Andres Klode <julian.klode@canonical.com>2019-05-06 11:40:08 +0200
committerJulian Andres Klode <julian.klode@canonical.com>2019-05-06 12:14:04 +0200
commitdfe2511e31f232a8a8880eba40af40d1deb0e49c (patch)
treec671a2bf5cdb255781548cf9c7a7686fb94d9bf5 /apt-pkg/deb/debfile.h
parentd03105d9fd5af76067f033475d4d60d30063e96a (diff)
Merge libapt-inst into libapt-pkg
Diffstat (limited to 'apt-pkg/deb/debfile.h')
-rw-r--r--apt-pkg/deb/debfile.h95
1 files changed, 95 insertions, 0 deletions
diff --git a/apt-pkg/deb/debfile.h b/apt-pkg/deb/debfile.h
new file mode 100644
index 000000000..21c59a567
--- /dev/null
+++ b/apt-pkg/deb/debfile.h
@@ -0,0 +1,95 @@
+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+/* ######################################################################
+
+ Debian Archive File (.deb)
+
+ This Class handles all the operations performed directly on .deb
+ files. It makes use of the AR and TAR classes to give the necessary
+ external interface.
+
+ There are only two things that can be done with a raw package,
+ extract it's control information and extract the contents itself.
+
+ This should probably subclass an as-yet unwritten super class to
+ produce a generic archive mechanism.
+
+ The memory control file extractor is useful to extract a single file
+ into memory from the control.tar.gz
+
+ ##################################################################### */
+ /*}}}*/
+#ifndef PKGLIB_DEBFILE_H
+#define PKGLIB_DEBFILE_H
+
+#include <apt-pkg/arfile.h>
+#include <apt-pkg/dirstream.h>
+#include <apt-pkg/macros.h>
+#include <apt-pkg/tagfile.h>
+
+#include <string>
+
+#ifndef APT_8_CLEANER_HEADERS
+#include <apt-pkg/md5.h>
+#endif
+#ifndef APT_10_CLEANER_HEADERS
+#include <apt-pkg/pkgcache.h>
+#endif
+
+class FileFd;
+
+class debDebFile
+{
+ protected:
+
+ FileFd &File;
+ ARArchive AR;
+
+ bool CheckMember(const char *Name);
+
+ public:
+ class ControlExtract;
+ class MemControlExtract;
+
+ bool ExtractTarMember(pkgDirStream &Stream, const char *Name);
+ bool ExtractArchive(pkgDirStream &Stream);
+ const ARArchive::Member *GotoMember(const char *Name);
+ inline FileFd &GetFile() {return File;};
+
+ explicit debDebFile(FileFd &File);
+};
+
+class debDebFile::ControlExtract : public pkgDirStream
+{
+ public:
+
+ virtual bool DoItem(Item &Itm,int &Fd) APT_OVERRIDE;
+};
+
+class debDebFile::MemControlExtract : public pkgDirStream
+{
+ bool IsControl;
+
+ public:
+
+ char *Control;
+ pkgTagSection Section;
+ unsigned long Length;
+ std::string Member;
+
+ // Members from DirStream
+ virtual bool DoItem(Item &Itm,int &Fd) APT_OVERRIDE;
+ virtual bool Process(Item &Itm,const unsigned char *Data,
+ unsigned long long Size,unsigned long long Pos) APT_OVERRIDE;
+
+ // Helpers
+ bool Read(debDebFile &Deb);
+ bool TakeControl(const void *Data,unsigned long long Size);
+
+ MemControlExtract() : IsControl(false), Control(0), Length(0), Member("control") {};
+ explicit MemControlExtract(std::string Member) : IsControl(false), Control(0), Length(0), Member(Member) {};
+ ~MemControlExtract() {delete [] Control;};
+};
+ /*}}}*/
+
+#endif