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-rw-r--r--methods/cdrom.cc144
-rw-r--r--methods/makefile6
2 files changed, 150 insertions, 0 deletions
diff --git a/methods/cdrom.cc b/methods/cdrom.cc
new file mode 100644
index 000000000..0d1e8f031
--- /dev/null
+++ b/methods/cdrom.cc
@@ -0,0 +1,144 @@
+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+// $Id: cdrom.cc,v 1.1 1998/12/03 07:29:21 jgg Exp $
+/* ######################################################################
+
+ CDROM URI method for APT
+
+ ##################################################################### */
+ /*}}}*/
+// Include Files /*{{{*/
+#include <apt-pkg/acquire-method.h>
+#include <apt-pkg/cdromutl.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/fileutl.h>
+
+#include <sys/stat.h>
+#include <unistd.h>
+ /*}}}*/
+
+class CDROMMethod : public pkgAcqMethod
+{
+ Configuration Database;
+ string CurrentID;
+
+ virtual bool Fetch(FetchItem *Itm);
+ string GetID(string Name);
+
+ public:
+
+ CDROMMethod();
+};
+
+// CDROMMethod::CDROMethod - Constructor /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+CDROMMethod::CDROMMethod() : pkgAcqMethod("1.0",SingleInstance | LocalOnly)
+{
+ // Read the database
+ string DFile = _config->FindFile("Dir::State::cdroms");
+ if (FileExists(DFile) == true)
+ {
+ if (ReadConfigFile(Database,DFile) == false)
+ {
+ _error->Error("Unable to read the cdrom database %s",
+ DFile.c_str());
+ Fail();
+ }
+ }
+};
+ /*}}}*/
+// CDROMMethod::GetID - Get the ID hash for /*{{{*/
+// ---------------------------------------------------------------------
+/* We search the configuration space for the name and then return the ID
+ tag associated with it. */
+string CDROMMethod::GetID(string Name)
+{
+ const Configuration::Item *Top = Database.Tree(0);
+ for (; Top != 0;)
+ {
+ if (Top->Value == Name)
+ return Top->Tag;
+
+ Top = Top->Next;
+ }
+
+ return string();
+}
+ /*}}}*/
+// CDROMMethod::Fetch - Fetch a file /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool CDROMMethod::Fetch(FetchItem *Itm)
+{
+ URI Get = Itm->Uri;
+ string File = Get.Path;
+ FetchResult Res;
+
+ /* All IMS queries are returned as a hit, CDROMs are readonly so
+ time stamps never change */
+ if (Itm->LastModified != 0)
+ {
+ Res.LastModified = Itm->LastModified;
+ Res.IMSHit = true;
+ URIDone(Res);
+ return true;
+ }
+
+ string ID = GetID(Get.Host);
+
+ // All non IMS queries for package files fail.
+ if (Itm->IndexFile == true || ID.empty() == false)
+ {
+ Fail("Please use apt-cdrom to make this CD recognized by APT."
+ " apt-get update cannot be used to add new CDs");
+ return true;
+ }
+
+ // We already have a CD inserted, but it is the wrong one
+ if (CurrentID.empty() == false && ID != CurrentID)
+ {
+ Fail("Wrong CD",true);
+ return true;
+ }
+
+ string CDROM = _config->FindDir("Acquire::cdrom::mount","/cdrom/");
+ string NewID;
+ while (1)
+ {
+ if (IdentCdrom(CDROM,NewID) == false)
+ return false;
+
+ // A hit
+ if (NewID == ID)
+ break;
+
+ UnmountCdrom(CDROM);
+ MediaFail(Get.Host,CDROM);
+ MountCdrom(CDROM);
+ }
+
+ // ID matches
+ if (NewID == ID)
+ {
+ Res.Filename = CDROM + File;
+ if (FileExists(Res.Filename) == false)
+ return _error->Error("File not found");
+
+ CurrentID = ID;
+ Res.LastModified = Itm->LastModified;
+ Res.IMSHit = true;
+ URIDone(Res);
+ return true;
+ }
+
+ return _error->Error("CDROM not found");
+}
+ /*}}}*/
+
+int main()
+{
+ CDROMMethod Mth;
+ return Mth.Run();
+}
diff --git a/methods/makefile b/methods/makefile
index b05356bb4..2940b891d 100644
--- a/methods/makefile
+++ b/methods/makefile
@@ -24,6 +24,12 @@ SLIBS = -lapt-pkg
SOURCE = gzip.cc
include $(PROGRAM_H)
+# The cdrom method
+PROGRAM=cdrom
+SLIBS = -lapt-pkg
+SOURCE = cdrom.cc
+include $(PROGRAM_H)
+
# The http method
PROGRAM=http
SLIBS = -lapt-pkg