merged (and resolved a bunch of conflicts) of the debian-sid branch

1 files changed, 0 insertions, 494 deletions

diff --git a/apt-inst/deb/dpkgdb.cc b/apt-inst/deb/dpkgdb.cc
deleted file mode 100644
index 819c123f6..000000000
--- a/apt-inst/deb/dpkgdb.cc
+++ /dev/null
@@ -1,494 +0,0 @@
-// -*- mode: cpp; mode: fold -*-
-// Description								/*{{{*/
-// $Id: dpkgdb.cc,v 1.7.2.1 2004/01/16 18:58:50 mdz Exp $
-/* ######################################################################
-
-   DPKGv1 Database Implemenation
-   
-   This class provides parsers and other implementations for the DPKGv1
-   database. It reads the diversion file, the list files and the status
-   file to build both the list of currently installed files and the 
-   currently installed package list.
-   
-   ##################################################################### */
-									/*}}}*/
-// Include Files							/*{{{*/
-#include<config.h>
-
-#include <apt-pkg/dpkgdb.h>
-#include <apt-pkg/configuration.h>
-#include <apt-pkg/error.h>
-#include <apt-pkg/progress.h>
-#include <apt-pkg/tagfile.h>
-#include <apt-pkg/strutl.h>
-#include <apt-pkg/fileutl.h>
-#include <apt-pkg/filelist.h>
-
-#include <stdio.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <ctype.h>
-#include <iostream>
-#include <apti18n.h>
-									/*}}}*/
-using namespace std;
-
-// EraseDir - Erase A Directory						/*{{{*/
-// ---------------------------------------------------------------------
-/* This is necessary to create a new empty sub directory. The caller should
-   invoke mkdir after this with the proper permissions and check for 
-   error. Maybe stick this in fileutils */
-static bool EraseDir(const char *Dir)
-{
-   // First we try a simple RM
-   if (rmdir(Dir) == 0 ||
-       errno == ENOENT)
-      return true;
-   
-   // A file? Easy enough..
-   if (errno == ENOTDIR)
-   {
-      if (unlink(Dir) != 0)
-	 return _error->Errno("unlink",_("Failed to remove %s"),Dir);
-      return true;
-   }
-   
-   // Should not happen
-   if (errno != ENOTEMPTY)
-      return _error->Errno("rmdir",_("Failed to remove %s"),Dir);
-   
-   // Purge it using rm
-   pid_t Pid = ExecFork();
-
-   // Spawn the subprocess
-   if (Pid == 0)
-   {
-      execlp(_config->Find("Dir::Bin::rm","/bin/rm").c_str(),
-	     "rm","-rf","--",Dir,(char *)NULL);
-      _exit(100);
-   }
-   return ExecWait(Pid,_config->Find("dir::bin::rm","/bin/rm").c_str());
-}
-									/*}}}*/
-// DpkgDB::debDpkgDB - Constructor					/*{{{*/
-// ---------------------------------------------------------------------
-/* */
-debDpkgDB::debDpkgDB() : CacheMap(0), FileMap(0)
-{
-   AdminDir = flNotFile(_config->Find("Dir::State::status"));   
-   DiverInode = 0;
-   DiverTime = 0;
-}
-									/*}}}*/
-// DpkgDB::~debDpkgDB - Destructor					/*{{{*/
-// ---------------------------------------------------------------------
-/* */
-debDpkgDB::~debDpkgDB()
-{
-   delete Cache;
-   Cache = 0;
-   delete CacheMap;
-   CacheMap = 0;
-   
-   delete FList;
-   FList = 0;
-   delete FileMap;
-   FileMap = 0;
-}
-									/*}}}*/
-// DpkgDB::InitMetaTmp - Get the temp dir for meta information		/*{{{*/
-// ---------------------------------------------------------------------
-/* This creats+empties the meta temporary directory /var/lib/dpkg/tmp.ci
-   Only one package at a time can be using the returned meta directory. */
-bool debDpkgDB::InitMetaTmp(string &Dir)
-{
-   string Tmp = AdminDir + "tmp.ci/";
-   if (EraseDir(Tmp.c_str()) == false)
-      return _error->Error(_("Unable to create %s"),Tmp.c_str());
-   if (mkdir(Tmp.c_str(),0755) != 0)
-      return _error->Errno("mkdir",_("Unable to create %s"),Tmp.c_str());
-   
-   // Verify it is on the same filesystem as the main info directory
-   dev_t Dev;
-   struct stat St;
-   if (stat((AdminDir + "info").c_str(),&St) != 0)
-      return _error->Errno("stat",_("Failed to stat %sinfo"),AdminDir.c_str());
-   Dev = St.st_dev;
-   if (stat(Tmp.c_str(),&St) != 0)
-      return _error->Errno("stat",_("Failed to stat %s"),Tmp.c_str());
-   if (Dev != St.st_dev)
-      return _error->Error(_("The info and temp directories need to be on the same filesystem"));
-   
-   // Done
-   Dir = Tmp;
-   return true;
-}
-									/*}}}*/
-// DpkgDB::ReadyPkgCache - Prepare the cache with the current status	/*{{{*/
-// ---------------------------------------------------------------------
-/* This reads in the status file into an empty cache. This really needs 
-   to be somehow unified with the high level APT notion of the Database
-   directory, but there is no clear way on how to do that yet. */
-bool debDpkgDB::ReadyPkgCache(OpProgress &Progress)
-{
-   if (Cache != 0)
-   {  
-      Progress.OverallProgress(1,1,1,_("Reading package lists"));      
-      return true;
-   }
-   
-   if (CacheMap != 0)
-   {
-      delete CacheMap;
-      CacheMap = 0;
-   }
-   
-   if (pkgCacheGenerator::MakeOnlyStatusCache(&Progress,&CacheMap) == false)
-      return false;
-   Cache->DropProgress();
-   
-   return true;
-}
-									/*}}}*/
-// DpkgDB::ReadFList - Read the File Listings in 			/*{{{*/
-// ---------------------------------------------------------------------
-/* This reads the file listing in from the state directory. This is a 
-   performance critical routine, as it needs to parse about 50k lines of
-   text spread over a hundred or more files. For an initial cold start
-   most of the time is spent in reading file inodes and so on, not 
-   actually parsing. */
-bool debDpkgDB::ReadFList(OpProgress &Progress)
-{
-   // Count the number of packages we need to read information for
-   unsigned long Total = 0;
-   pkgCache &Cache = this->Cache->GetCache();
-   for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
-   {
-      // Only not installed packages have no files.
-      if (I->CurrentState == pkgCache::State::NotInstalled)
-	 continue;
-      Total++;
-   }
-
-   /* Switch into the admin dir, this prevents useless lookups for the 
-      path components */
-   string Cwd = SafeGetCWD();
-   if (chdir((AdminDir + "info/").c_str()) != 0)
-      return _error->Errno("chdir",_("Failed to change to the admin dir %sinfo"),AdminDir.c_str());
-   
-   // Allocate a buffer. Anything larger than this buffer will be mmaped
-   unsigned long BufSize = 32*1024;
-   char *Buffer = new char[BufSize];
-
-   // Begin Loading them
-   unsigned long Count = 0;
-   char Name[300];
-   for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
-   {
-      /* Only not installed packages have no files. ConfFile packages have
-         file lists but we don't want to read them in */
-      if (I->CurrentState == pkgCache::State::NotInstalled ||
-	  I->CurrentState == pkgCache::State::ConfigFiles)
-	 continue;
-
-      // Fetch a package handle to associate with the file
-      pkgFLCache::PkgIterator FlPkg = FList->GetPkg(I.Name(),0,true);
-      if (FlPkg.end() == true)
-      {
-	 _error->Error(_("Internal error getting a package name"));
-	 break;
-      }
-      
-      Progress.OverallProgress(Count,Total,1,_("Reading file listing"));
-     
-      // Open the list file
-      snprintf(Name,sizeof(Name),"%s.list",I.Name());
-      int Fd = open(Name,O_RDONLY);
-      
-      /* Okay this is very strange and bad.. Best thing is to bail and
-         instruct the user to look into it. */
-      struct stat Stat;
-      if (Fd == -1 || fstat(Fd,&Stat) != 0)
-      {
-	 _error->Errno("open",_("Failed to open the list file '%sinfo/%s'. If you "
-		       "cannot restore this file then make it empty "
-		       "and immediately re-install the same version of the package!"),
-		       AdminDir.c_str(),Name);
-	 break;
-      }
-      
-      // Set File to be a memory buffer containing the whole file
-      char *File;
-      if ((unsigned)Stat.st_size < BufSize)
-      {
-	 if (read(Fd,Buffer,Stat.st_size) != Stat.st_size)
-	 {
-	    _error->Errno("read",_("Failed reading the list file %sinfo/%s"),
-			  AdminDir.c_str(),Name);
-	    close(Fd);
-	    break;
-	 }
-	 File = Buffer;
-      }
-      else
-      {
-	 // Use mmap
-	 File = (char *)mmap(0,Stat.st_size,PROT_READ,MAP_PRIVATE,Fd,0);
-	 if (File == (char *)(-1))
-	 {
-	    _error->Errno("mmap",_("Failed reading the list file %sinfo/%s"),
-			  AdminDir.c_str(),Name);
-	    close(Fd);
-	    break;
-	 }	    
-      }
-      
-      // Parse it
-      const char *Start = File;
-      const char *End = File;
-      const char *Finish = File + Stat.st_size;
-      for (; End < Finish; End++)
-      {
-	 // Not an end of line
-	 if (*End != '\n' && End + 1 < Finish)
-	    continue;
-
-	 // Skip blank lines
-	 if (End - Start > 1)
-	 {
-	    pkgFLCache::NodeIterator Node = FList->GetNode(Start,End,
- 					      FlPkg.Offset(),true,false);
-	    if (Node.end() == true)
-	    {
-	       _error->Error(_("Internal error getting a node"));
-	       break;
-	    }
-	 }
-	 
-	 // Skip past the end of line
-	 for (; *End == '\n' && End < Finish; End++);
-	 Start = End;
-      }      
-      
-      close(Fd);
-      if ((unsigned)Stat.st_size >= BufSize)
-	 munmap((caddr_t)File,Stat.st_size);
-      
-      // Failed
-      if (End < Finish)
-	 break;
-      
-      Count++;
-   }
-
-   delete [] Buffer;
-   if (chdir(Cwd.c_str()) != 0)
-      chdir("/");
-   
-   return !_error->PendingError();
-}
-									/*}}}*/
-// DpkgDB::ReadDiversions - Load the diversions file			/*{{{*/
-// ---------------------------------------------------------------------
-/* Read the diversion file in from disk. This is usually invoked by 
-   LoadChanges before performing an operation that uses the FLCache. */
-bool debDpkgDB::ReadDiversions()
-{
-   struct stat Stat;
-   if (stat((AdminDir + "diversions").c_str(),&Stat) != 0)
-      return true;
-   
-   if (_error->PendingError() == true)
-      return false;
-   
-   FILE *Fd = fopen((AdminDir + "diversions").c_str(),"r");
-   if (Fd == 0)
-      return _error->Errno("fopen",_("Failed to open the diversions file %sdiversions"),AdminDir.c_str());
-	
-   FList->BeginDiverLoad();
-   while (1)
-   {
-      char From[300];
-      char To[300];
-      char Package[100];
-   
-      // Read the three lines in
-      if (fgets(From,sizeof(From),Fd) == 0)
-	 break;
-      if (fgets(To,sizeof(To),Fd) == 0 ||
-	  fgets(Package,sizeof(Package),Fd) == 0)
-      {
-	 _error->Error(_("The diversion file is corrupted"));
-	 break;
-      }
-      
-      // Strip the \ns
-      unsigned long Len = strlen(From);
-      if (Len < 2 || From[Len-1] != '\n')
-	 _error->Error(_("Invalid line in the diversion file: %s"),From);
-      else
-	 From[Len-1] = 0;
-      Len = strlen(To);
-      if (Len < 2 || To[Len-1] != '\n')
-	 _error->Error(_("Invalid line in the diversion file: %s"),To);
-      else
-	 To[Len-1] = 0;     
-      Len = strlen(Package);
-      if (Len < 2 || Package[Len-1] != '\n')
-	 _error->Error(_("Invalid line in the diversion file: %s"),Package);
-      else
-	 Package[Len-1] = 0;
-      
-      // Make sure the lines were parsed OK
-      if (_error->PendingError() == true)
-	 break;
-      
-      // Fetch a package
-      if (strcmp(Package,":") == 0)
-	 Package[0] = 0;
-      pkgFLCache::PkgIterator FlPkg = FList->GetPkg(Package,0,true);
-      if (FlPkg.end() == true)
-      {
-	 _error->Error(_("Internal error getting a package name"));
-	 break;
-      }
-      
-      // Install the diversion
-      if (FList->AddDiversion(FlPkg,From,To) == false)
-      {
-	 _error->Error(_("Internal error adding a diversion"));
-	 break;
-      }
-   }
-   if (_error->PendingError() == false)
-      FList->FinishDiverLoad();
-   
-   DiverInode = Stat.st_ino;
-   DiverTime = Stat.st_mtime;
-   
-   fclose(Fd);
-   return !_error->PendingError();
-}
-									/*}}}*/
-// DpkgDB::ReadFileList - Read the file listing				/*{{{*/
-// ---------------------------------------------------------------------
-/* Read in the file listing. The file listing is created from three
-   sources, *.list, Conffile sections and the Diversion table. */
-bool debDpkgDB::ReadyFileList(OpProgress &Progress)
-{
-   if (Cache == 0)
-      return _error->Error(_("The pkg cache must be initialized first"));
-   if (FList != 0)
-   {
-      Progress.OverallProgress(1,1,1,_("Reading file listing"));
-      return true;
-   }
-   
-   // Create the cache and read in the file listing
-   FileMap = new DynamicMMap(MMap::Public);
-   FList = new pkgFLCache(*FileMap);
-   if (_error->PendingError() == true || 
-       ReadFList(Progress) == false ||
-       ReadConfFiles() == false || 
-       ReadDiversions() == false)
-   {
-      delete FList;
-      delete FileMap;
-      FileMap = 0;
-      FList = 0;
-      return false;
-   }
-      
-   cout << "Node: " << FList->HeaderP->NodeCount << ',' << FList->HeaderP->UniqNodes << endl;
-   cout << "Dir: " << FList->HeaderP->DirCount << endl;
-   cout << "Package: " << FList->HeaderP->PackageCount << endl;
-   cout << "HashSize: " << FList->HeaderP->HashSize << endl;
-   cout << "Size: " << FileMap->Size() << endl;
-   cout << endl;
-
-   return true;
-}
-									/*}}}*/
-// DpkgDB::ReadConfFiles - Read the conf file sections from the s-file	/*{{{*/
-// ---------------------------------------------------------------------
-/* Reading the conf files is done by reparsing the status file. This is
-   actually rather fast so it is no big deal. */
-bool debDpkgDB::ReadConfFiles()
-{
-   FileFd File(_config->FindFile("Dir::State::status"),FileFd::ReadOnly);
-   pkgTagFile Tags(&File);
-   if (_error->PendingError() == true)
-      return false;
-   
-   pkgTagSection Section;   
-   while (1)
-   {
-      // Skip to the next section
-      unsigned long Offset = Tags.Offset();
-      if (Tags.Step(Section) == false)
-	 break;
-	 
-      // Parse the line
-      const char *Start;
-      const char *Stop;
-      if (Section.Find("Conffiles",Start,Stop) == false)
-	 continue;
-
-      const char *PkgStart;
-      const char *PkgEnd;
-      if (Section.Find("Package",PkgStart,PkgEnd) == false)
-	 return _error->Error(_("Failed to find a Package: header, offset %lu"),Offset);
-
-      // Snag a package record for it
-      pkgFLCache::PkgIterator FlPkg = FList->GetPkg(PkgStart,PkgEnd,true);
-      if (FlPkg.end() == true)
-	 return _error->Error(_("Internal error getting a package name"));
-
-      // Parse the conf file lines
-      while (1)
-      {
-	 for (; isspace(*Start) != 0 && Start < Stop; Start++);
-	 if (Start == Stop)
-	    break;
-
-	 // Split it into words
-	 const char *End = Start;
-	 for (; isspace(*End) == 0 && End < Stop; End++);
-	 const char *StartMd5 = End;
-	 for (; isspace(*StartMd5) != 0 && StartMd5 < Stop; StartMd5++);
-	 const char *EndMd5 = StartMd5;
-	 for (; isspace(*EndMd5) == 0 && EndMd5 < Stop; EndMd5++);
-	 if (StartMd5 == EndMd5 || Start == End)
-	    return _error->Error(_("Bad ConfFile section in the status file. Offset %lu"),Offset);
-	 	 
-	 // Insert a new entry
-	 unsigned char MD5[16];
-	 if (Hex2Num(string(StartMd5,EndMd5-StartMd5),MD5,16) == false)
-	    return _error->Error(_("Error parsing MD5. Offset %lu"),Offset);
-
-	 if (FList->AddConfFile(Start,End,FlPkg,MD5) == false)
-	    return false;
-	 Start = EndMd5;
-      }      
-   }   
-   
-   return true;
-}
-									/*}}}*/
-// DpkgDB::LoadChanges - Read in any changed state files		/*{{{*/
-// ---------------------------------------------------------------------
-/* The only file in the dpkg system that can change while packages are
-   unpacking is the diversions file. */
-bool debDpkgDB::LoadChanges()
-{
-   struct stat Stat;
-   if (stat((AdminDir + "diversions").c_str(),&Stat) != 0)
-      return true;
-   if (DiverInode == Stat.st_ino && DiverTime == Stat.st_mtime)
-      return true;
-   return ReadDiversions();
-}
-									/*}}}*/