[apt.git] / cmdline / apt-mark.cc

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
/* #####################################################################
   apt-mark - show and change auto-installed bit information
   ##################################################################### */
									/*}}}*/
// Include Files							/*{{{*/
#include <config.h>

#include <apt-pkg/cachefile.h>
#include <apt-pkg/cacheset.h>
#include <apt-pkg/cmndline.h>
#include <apt-pkg/error.h>
#include <apt-pkg/init.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/pkgsystem.h>
#include <apt-pkg/fileutl.h>

#include <algorithm>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <fcntl.h>

#include <apt-private/private-cmndline.h>

#include <apti18n.h>
									/*}}}*/
using namespace std;

ostream c0out(0);
ostream c1out(0);
ostream c2out(0);
ofstream devnull("/dev/null");
/* DoAuto - mark packages as automatically/manually installed		{{{*/
bool DoAuto(CommandLine &CmdL)
{
   pkgCacheFile CacheFile;
   pkgCache *Cache = CacheFile.GetPkgCache();
   pkgDepCache *DepCache = CacheFile.GetDepCache();
   if (unlikely(Cache == NULL || DepCache == NULL))
      return false;

   APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1);
   if (pkgset.empty() == true)
      return _error->Error(_("No packages found"));

   bool MarkAuto = strcasecmp(CmdL.FileList[0],"auto") == 0;
   int AutoMarkChanged = 0;

   for (APT::PackageList::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
   {
      if (Pkg->CurrentVer == 0)
      {
	 ioprintf(c1out,_("%s can not be marked as it is not installed.\n"), Pkg.FullName(true).c_str());
	 continue;
      }
      else if ((((*DepCache)[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == MarkAuto)
      {
	 if (MarkAuto == false)
	    ioprintf(c1out,_("%s was already set to manually installed.\n"), Pkg.FullName(true).c_str());
	 else
	    ioprintf(c1out,_("%s was already set to automatically installed.\n"), Pkg.FullName(true).c_str());
	 continue;
      }

      if (MarkAuto == false)
	 ioprintf(c1out,_("%s set to manually installed.\n"), Pkg.FullName(true).c_str());
      else
	 ioprintf(c1out,_("%s set to automatically installed.\n"), Pkg.FullName(true).c_str());

      DepCache->MarkAuto(Pkg, MarkAuto);
      ++AutoMarkChanged;
   }
   if (AutoMarkChanged > 0 && _config->FindB("APT::Mark::Simulate", false) == false)
      return DepCache->writeStateFile(NULL);
   return true;
}
									/*}}}*/
/* DoMarkAuto - mark packages as automatically/manually installed	{{{*/
/* Does the same as DoAuto but tries to do it exactly the same why as
   the python implementation did it so it can be a drop-in replacement */
bool DoMarkAuto(CommandLine &CmdL)
{
   pkgCacheFile CacheFile;
   pkgCache *Cache = CacheFile.GetPkgCache();
   pkgDepCache *DepCache = CacheFile.GetDepCache();
   if (unlikely(Cache == NULL || DepCache == NULL))
      return false;

   APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1);
   if (pkgset.empty() == true)
      return _error->Error(_("No packages found"));

   bool const MarkAuto = strcasecmp(CmdL.FileList[0],"markauto") == 0;
   bool const Verbose = _config->FindB("APT::MarkAuto::Verbose", false);
   int AutoMarkChanged = 0;

   for (APT::PackageList::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
   {
      if (Pkg->CurrentVer == 0 ||
	  (((*DepCache)[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == MarkAuto)
	 continue;

      if (Verbose == true)
	 ioprintf(c1out, "changing %s to %d\n", Pkg.Name(), (MarkAuto == false) ? 0 : 1);

      DepCache->MarkAuto(Pkg, MarkAuto);
      ++AutoMarkChanged;
   }
   if (AutoMarkChanged > 0 && _config->FindB("APT::Mark::Simulate", false) == false)
      return DepCache->writeStateFile(NULL);

   _error->Notice(_("This command is deprecated. Please use 'apt-mark auto' and 'apt-mark manual' instead."));

   return true;
}
									/*}}}*/
/* ShowAuto - show automatically installed packages (sorted)		{{{*/
bool ShowAuto(CommandLine &CmdL)
{
   pkgCacheFile CacheFile;
   pkgCache *Cache = CacheFile.GetPkgCache();
   pkgDepCache *DepCache = CacheFile.GetDepCache();
   if (unlikely(Cache == NULL || DepCache == NULL))
      return false;

   std::vector<string> packages;

   bool const ShowAuto = strcasecmp(CmdL.FileList[0],"showauto") == 0;

   if (CmdL.FileList[1] == 0)
   {
      packages.reserve(Cache->HeaderP->PackageCount / 3);
      for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
	 if (P->CurrentVer != 0 &&
	     (((*DepCache)[P].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == ShowAuto)
	    packages.push_back(P.FullName(true));
   }
   else
   {
      APT::CacheSetHelper helper(false); // do not show errors
      APT::PackageSet pkgset = APT::PackageSet::FromCommandLine(CacheFile, CmdL.FileList + 1, helper);
      packages.reserve(pkgset.size());
      for (APT::PackageSet::const_iterator P = pkgset.begin(); P != pkgset.end(); ++P)
	 if (P->CurrentVer != 0 &&
	     (((*DepCache)[P].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == ShowAuto)
	    packages.push_back(P.FullName(true));
   }

   std::sort(packages.begin(), packages.end());

   for (vector<string>::const_iterator I = packages.begin(); I != packages.end(); ++I)
      std::cout << *I << std::endl;

   return true;
}
									/*}}}*/
/* DoHold - mark packages as hold by dpkg				{{{*/
bool DoHold(CommandLine &CmdL)
{
   pkgCacheFile CacheFile;
   pkgCache *Cache = CacheFile.GetPkgCache();
   if (unlikely(Cache == NULL))
      return false;

   // Generate the base argument list for dpkg
   std::vector<const char *> Args;
   string Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
   {
      string const dpkgChrootDir = _config->FindDir("DPkg::Chroot-Directory", "/");
      size_t dpkgChrootLen = dpkgChrootDir.length();
      if (dpkgChrootDir != "/" && Tmp.find(dpkgChrootDir) == 0)
      {
	 if (dpkgChrootDir[dpkgChrootLen - 1] == '/')
	    --dpkgChrootLen;
	 Tmp = Tmp.substr(dpkgChrootLen);
      }
   }
   Args.push_back(Tmp.c_str());

   // Stick in any custom dpkg options
   Configuration::Item const *Opts = _config->Tree("DPkg::Options");
   if (Opts != 0)
   {
      Opts = Opts->Child;
      for (; Opts != 0; Opts = Opts->Next)
      {
	 if (Opts->Value.empty() == true)
	    continue;
	 Args.push_back(Opts->Value.c_str());
      }
   }

   size_t const BaseArgs = Args.size();
   // we need to detect if we can qualify packages with the architecture or not
   Args.push_back("--assert-multi-arch");
   Args.push_back(NULL);


   pid_t dpkgAssertMultiArch = ExecFork();
   if (dpkgAssertMultiArch == 0)
   {
      std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory");
      // redirect everything to the ultimate sink as we only need the exit-status
      int const nullfd = open("/dev/null", O_RDONLY);
      dup2(nullfd, STDIN_FILENO);
      dup2(nullfd, STDOUT_FILENO);
      dup2(nullfd, STDERR_FILENO);
      if (chrootDir != "/" && chroot(chrootDir.c_str()) != 0 && chdir("/") != 0)
	 _error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --assert-multi-arch", chrootDir.c_str());
      execvp(Args[0], (char**) &Args[0]);
      _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
      _exit(2);
   }

   APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1);
   if (pkgset.empty() == true)
      return _error->Error(_("No packages found"));

   bool const MarkHold = strcasecmp(CmdL.FileList[0],"hold") == 0;

   for (APT::PackageList::iterator Pkg = pkgset.begin(); Pkg != pkgset.end();)
   {
      if ((Pkg->SelectedState == pkgCache::State::Hold) == MarkHold)
      {
	 if (MarkHold == true)
	    ioprintf(c1out,_("%s was already set on hold.\n"), Pkg.FullName(true).c_str());
	 else
	    ioprintf(c1out,_("%s was already not hold.\n"), Pkg.FullName(true).c_str());
	 Pkg = pkgset.erase(Pkg, true);
      }
      else
	 ++Pkg;
   }

   bool dpkgMultiArch = false;
   if (dpkgAssertMultiArch > 0)
   {
      int Status = 0;
      while (waitpid(dpkgAssertMultiArch, &Status, 0) != dpkgAssertMultiArch)
      {
	 if (errno == EINTR)
	    continue;
	 _error->WarningE("dpkgGo", _("Waited for %s but it wasn't there"), "dpkg --assert-multi-arch");
	 break;
      }
      if (WIFEXITED(Status) == true && WEXITSTATUS(Status) == 0)
	 dpkgMultiArch = true;
   }

   if (pkgset.empty() == true)
      return true;

   if (_config->FindB("APT::Mark::Simulate", false) == true)
   {
      for (APT::PackageList::iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
      {
	 if (MarkHold == false)
	    ioprintf(c1out,_("%s set on hold.\n"), Pkg.FullName(true).c_str());
	 else
	    ioprintf(c1out,_("Canceled hold on %s.\n"), Pkg.FullName(true).c_str());
      }
      return true;
   }

   Args.erase(Args.begin() + BaseArgs, Args.end());
   Args.push_back("--set-selections");
   Args.push_back(NULL);

   int external[2] = {-1, -1};
   if (pipe(external) != 0)
      return _error->WarningE("DoHold", "Can't create IPC pipe for dpkg --set-selections");

   pid_t dpkgSelection = ExecFork();
   if (dpkgSelection == 0)
   {
      close(external[1]);
      std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory");
      if (chrootDir != "/" && chroot(chrootDir.c_str()) != 0 && chdir("/") != 0)
	 _error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --set-selections", chrootDir.c_str());
      int const nullfd = open("/dev/null", O_RDONLY);
      dup2(external[0], STDIN_FILENO);
      dup2(nullfd, STDOUT_FILENO);
      dup2(nullfd, STDERR_FILENO);
      execvp(Args[0], (char**) &Args[0]);
      _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
      _exit(2);
   }

   FILE* dpkg = fdopen(external[1], "w");
   for (APT::PackageList::iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
   {
      if (dpkgMultiArch == false)
	 fprintf(dpkg, "%s", Pkg.FullName(true).c_str());
      else
      {
	 if (Pkg->CurrentVer != 0)
	    fprintf(dpkg, "%s:%s", Pkg.Name(), Pkg.CurrentVer().Arch());
	 else if (Pkg.VersionList().end() == false)
	    fprintf(dpkg, "%s:%s", Pkg.Name(), Pkg.VersionList().Arch());
	 else
	    fprintf(dpkg, "%s", Pkg.FullName(false).c_str());
      }

      if (MarkHold == true)
      {
	 fprintf(dpkg, " hold\n");
	 ioprintf(c1out,_("%s set on hold.\n"), Pkg.FullName(true).c_str());
      }
      else
      {
	 fprintf(dpkg, " install\n");
	 ioprintf(c1out,_("Canceled hold on %s.\n"), Pkg.FullName(true).c_str());
      }
   }
   fclose(dpkg);

   if (dpkgSelection > 0)
   {
      int Status = 0;
      while (waitpid(dpkgSelection, &Status, 0) != dpkgSelection)
      {
	 if (errno == EINTR)
	    continue;
	 _error->WarningE("dpkgGo", _("Waited for %s but it wasn't there"), "dpkg --set-selection");
	 break;
      }
      if (WIFEXITED(Status) == true && WEXITSTATUS(Status) == 0)
	 return true;
   }
   return _error->Error(_("Executing dpkg failed. Are you root?"));
}
									/*}}}*/
/* ShowHold - show packages set on hold in dpkg status			{{{*/
bool ShowHold(CommandLine &CmdL)
{
   pkgCacheFile CacheFile;
   pkgCache *Cache = CacheFile.GetPkgCache();
   if (unlikely(Cache == NULL))
      return false;

   std::vector<string> packages;

   if (CmdL.FileList[1] == 0)
   {
      packages.reserve(50); // how many holds are realistic? I hope just a few…
      for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
	 if (P->SelectedState == pkgCache::State::Hold)
	    packages.push_back(P.FullName(true));
   }
   else
   {
      APT::CacheSetHelper helper(false); // do not show errors
      APT::PackageSet pkgset = APT::PackageSet::FromCommandLine(CacheFile, CmdL.FileList + 1, helper);
      packages.reserve(pkgset.size());
      for (APT::PackageSet::const_iterator P = pkgset.begin(); P != pkgset.end(); ++P)
	 if (P->SelectedState == pkgCache::State::Hold)
	    packages.push_back(P.FullName(true));
   }

   std::sort(packages.begin(), packages.end());

   for (vector<string>::const_iterator I = packages.begin(); I != packages.end(); ++I)
      std::cout << *I << std::endl;

   return true;
}
									/*}}}*/
// ShowHelp - Show a help screen					/*{{{*/
// ---------------------------------------------------------------------
/* */
bool ShowHelp(CommandLine &CmdL)
{
   ioprintf(cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,PACKAGE_VERSION,
	    COMMON_ARCH,__DATE__,__TIME__);

   cout <<
    _("Usage: apt-mark [options] {auto|manual} pkg1 [pkg2 ...]\n"
      "\n"
      "apt-mark is a simple command line interface for marking packages\n"
      "as manually or automatically installed. It can also list marks.\n"
      "\n"
      "Commands:\n"
      "   auto - Mark the given packages as automatically installed\n"
      "   manual - Mark the given packages as manually installed\n"
      "   hold - Mark a package as held back\n"
      "   unhold - Unset a package set as held back\n"
      "   showauto - Print the list of automatically installed packages\n"
      "   showmanual - Print the list of manually installed packages\n"
      "   showhold - Print the list of package on hold\n"
      "\n"
      "Options:\n"
      "  -h  This help text.\n"
      "  -q  Loggable output - no progress indicator\n"
      "  -qq No output except for errors\n"
      "  -s  No-act. Just prints what would be done.\n"
      "  -f  read/write auto/manual marking in the given file\n"
      "  -c=? Read this configuration file\n"
      "  -o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp\n"
      "See the apt-mark(8) and apt.conf(5) manual pages for more information.")
      << std::endl;
   return true;
}
									/*}}}*/
int main(int argc,const char *argv[])					/*{{{*/
{
   CommandLine::Dispatch Cmds[] = {{"help",&ShowHelp},
				   {"auto",&DoAuto},
				   {"manual",&DoAuto},
				   {"hold",&DoHold},
				   {"unhold",&DoHold},
				   {"showauto",&ShowAuto},
				   {"showmanual",&ShowAuto},
				   {"showhold",&ShowHold},
				   // be nice and forgive the typo
				   {"showholds",&ShowHold},
				   // be nice and forgive it as it is technical right
				   {"install",&DoHold},
				   // obsolete commands for compatibility
				   {"markauto", &DoMarkAuto},
				   {"unmarkauto", &DoMarkAuto},
                                   {0,0}};

   std::vector<CommandLine::Args> Args = getCommandArgs("apt-mark", CommandLine::GetCommand(Cmds, argc, argv));

   // Set up gettext support
   setlocale(LC_ALL,"");
   textdomain(PACKAGE);

   // Parse the command line and initialize the package library
   CommandLine CmdL(Args.data(),_config);
   if (pkgInitConfig(*_config) == false ||
       CmdL.Parse(argc,argv) == false ||
       pkgInitSystem(*_config,_system) == false)
   {
      if (_config->FindB("version") == true)
	 ShowHelp(CmdL);
      _error->DumpErrors();
      return 100;
   }

   // See if the help should be shown
   if (_config->FindB("help") == true ||
       _config->FindB("version") == true ||
       CmdL.FileSize() == 0)
   {
      ShowHelp(CmdL);
      return 0;
   }

   // Deal with stdout not being a tty
   if (!isatty(STDOUT_FILENO) && _config->FindI("quiet", -1) == -1)
      _config->Set("quiet","1");

   // Setup the output streams
   c0out.rdbuf(cout.rdbuf());
   c1out.rdbuf(cout.rdbuf());
   c2out.rdbuf(cout.rdbuf());
   if (_config->FindI("quiet",0) > 0)
      c0out.rdbuf(devnull.rdbuf());
   if (_config->FindI("quiet",0) > 1)
      c1out.rdbuf(devnull.rdbuf());

   // Match the operation
   CmdL.DispatchArg(Cmds);

   // Print any errors or warnings found during parsing
   bool const Errors = _error->PendingError();
   if (_config->FindI("quiet",0) > 0)
      _error->DumpErrors();
   else
      _error->DumpErrors(GlobalError::DEBUG);
   return Errors == true ? 100 : 0;
}
									/*}}}*/
Commit	Line	Data
c98fb5e0 DK	1	// -- mode: cpp; mode: fold --
	2	// Description /{{{/
	3	/* #####################################################################
	4	apt-mark - show and change auto-installed bit information
	5	##################################################################### */
	6	/}}}/
	7	// Include Files /{{{/
ea542140 DK	8	#include <config.h>
ea542140 DK	9
c98fb5e0 DK	10	#include <apt-pkg/cachefile.h>
	11	#include <apt-pkg/cacheset.h>
	12	#include <apt-pkg/cmndline.h>
	13	#include <apt-pkg/error.h>
	14	#include <apt-pkg/init.h>
	15	#include <apt-pkg/strutl.h>
472ff00e	16	#include <apt-pkg/pkgsystem.h>
6fddb156	17	#include <apt-pkg/fileutl.h>
c98fb5e0	18
c98fb5e0	19	#include <algorithm>
6fddb156	20	#include <errno.h>
e75aa333	21	#include <unistd.h>
6fddb156 DK	22	#include <sys/types.h>
	23	#include <sys/stat.h>
	24	#include <sys/wait.h>
	25	#include <fcntl.h>
ea542140	26
b9179170 MV	27	#include <apt-private/private-cmndline.h>
b9179170 MV	28
ea542140	29	#include <apti18n.h>
c98fb5e0 DK	30	/}}}/
	31	using namespace std;
	32
	33	ostream c0out(0);
	34	ostream c1out(0);
	35	ostream c2out(0);
	36	ofstream devnull("/dev/null");
	37	/* DoAuto - mark packages as automatically/manually installed {{{*/
	38	bool DoAuto(CommandLine &CmdL)
	39	{
	40	pkgCacheFile CacheFile;
	41	pkgCache *Cache = CacheFile.GetPkgCache();
	42	pkgDepCache *DepCache = CacheFile.GetDepCache();
	43	if (unlikely(Cache == NULL \|\| DepCache == NULL))
	44	return false;
	45
c4cca791	46	APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1);
c98fb5e0 DK	47	if (pkgset.empty() == true)
	48	return _error->Error(_("No packages found"));
	49
	50	bool MarkAuto = strcasecmp(CmdL.FileList[0],"auto") == 0;
	51	int AutoMarkChanged = 0;
	52
c4cca791	53	for (APT::PackageList::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
c98fb5e0 DK	54	{
	55	if (Pkg->CurrentVer == 0)
	56	{
	57	ioprintf(c1out,_("%s can not be marked as it is not installed.\n"), Pkg.FullName(true).c_str());
	58	continue;
	59	}
	60	else if ((((*DepCache)[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == MarkAuto)
	61	{
	62	if (MarkAuto == false)
	63	ioprintf(c1out,_("%s was already set to manually installed.\n"), Pkg.FullName(true).c_str());
	64	else
	65	ioprintf(c1out,_("%s was already set to automatically installed.\n"), Pkg.FullName(true).c_str());
	66	continue;
	67	}
	68
	69	if (MarkAuto == false)
	70	ioprintf(c1out,_("%s set to manually installed.\n"), Pkg.FullName(true).c_str());
	71	else
	72	ioprintf(c1out,_("%s set to automatically installed.\n"), Pkg.FullName(true).c_str());
	73
	74	DepCache->MarkAuto(Pkg, MarkAuto);
	75	++AutoMarkChanged;
	76	}
	77	if (AutoMarkChanged > 0 && _config->FindB("APT::Mark::Simulate", false) == false)
	78	return DepCache->writeStateFile(NULL);
	79	return true;
	80	}
	81	/}}}/
	82	/* DoMarkAuto - mark packages as automatically/manually installed {{{*/
	83	/* Does the same as DoAuto but tries to do it exactly the same why as
	84	the python implementation did it so it can be a drop-in replacement */
	85	bool DoMarkAuto(CommandLine &CmdL)
	86	{
	87	pkgCacheFile CacheFile;
	88	pkgCache *Cache = CacheFile.GetPkgCache();
	89	pkgDepCache *DepCache = CacheFile.GetDepCache();
	90	if (unlikely(Cache == NULL \|\| DepCache == NULL))
	91	return false;
	92
c4cca791	93	APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1);
c98fb5e0 DK	94	if (pkgset.empty() == true)
	95	return _error->Error(_("No packages found"));
	96
	97	bool const MarkAuto = strcasecmp(CmdL.FileList[0],"markauto") == 0;
	98	bool const Verbose = _config->FindB("APT::MarkAuto::Verbose", false);
	99	int AutoMarkChanged = 0;
	100
c4cca791	101	for (APT::PackageList::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
c98fb5e0 DK	102	{
	103	if (Pkg->CurrentVer == 0 \|\|
	104	(((*DepCache)[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == MarkAuto)
	105	continue;
	106
	107	if (Verbose == true)
	108	ioprintf(c1out, "changing %s to %d\n", Pkg.Name(), (MarkAuto == false) ? 0 : 1);
	109
	110	DepCache->MarkAuto(Pkg, MarkAuto);
	111	++AutoMarkChanged;
	112	}
	113	if (AutoMarkChanged > 0 && _config->FindB("APT::Mark::Simulate", false) == false)
	114	return DepCache->writeStateFile(NULL);
	115
	116	_error->Notice(_("This command is deprecated. Please use 'apt-mark auto' and 'apt-mark manual' instead."));
	117
	118	return true;
	119	}
	120	/}}}/
	121	/* ShowAuto - show automatically installed packages (sorted) {{{*/
	122	bool ShowAuto(CommandLine &CmdL)
	123	{
	124	pkgCacheFile CacheFile;
	125	pkgCache *Cache = CacheFile.GetPkgCache();
	126	pkgDepCache *DepCache = CacheFile.GetDepCache();
	127	if (unlikely(Cache == NULL \|\| DepCache == NULL))
	128	return false;
	129
	130	std::vector<string> packages;
	131
	132	bool const ShowAuto = strcasecmp(CmdL.FileList[0],"showauto") == 0;
	133
	134	if (CmdL.FileList[1] == 0)
	135	{
	136	packages.reserve(Cache->HeaderP->PackageCount / 3);
	137	for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
	138	if (P->CurrentVer != 0 &&
	139	(((*DepCache)[P].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == ShowAuto)
	140	packages.push_back(P.FullName(true));
	141	}
	142	else
	143	{
	144	APT::CacheSetHelper helper(false); // do not show errors
	145	APT::PackageSet pkgset = APT::PackageSet::FromCommandLine(CacheFile, CmdL.FileList + 1, helper);
	146	packages.reserve(pkgset.size());
	147	for (APT::PackageSet::const_iterator P = pkgset.begin(); P != pkgset.end(); ++P)
	148	if (P->CurrentVer != 0 &&
	149	(((*DepCache)[P].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == ShowAuto)
	150	packages.push_back(P.FullName(true));
	151	}
	152
	153	std::sort(packages.begin(), packages.end());
	154
a09e4489 DK	155	for (vector<string>::const_iterator I = packages.begin(); I != packages.end(); ++I)
	156	std::cout << *I << std::endl;
	157
	158	return true;
	159	}
	160	/}}}/
	161	/* DoHold - mark packages as hold by dpkg {{{*/
	162	bool DoHold(CommandLine &CmdL)
	163	{
	164	pkgCacheFile CacheFile;
	165	pkgCache *Cache = CacheFile.GetPkgCache();
	166	if (unlikely(Cache == NULL))
	167	return false;
	168
6fddb156 DK	169	// Generate the base argument list for dpkg
	170	std::vector<const char *> Args;
	171	string Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
	172	{
	173	string const dpkgChrootDir = _config->FindDir("DPkg::Chroot-Directory", "/");
	174	size_t dpkgChrootLen = dpkgChrootDir.length();
	175	if (dpkgChrootDir != "/" && Tmp.find(dpkgChrootDir) == 0)
	176	{
	177	if (dpkgChrootDir[dpkgChrootLen - 1] == '/')
	178	--dpkgChrootLen;
	179	Tmp = Tmp.substr(dpkgChrootLen);
	180	}
	181	}
	182	Args.push_back(Tmp.c_str());
	183
	184	// Stick in any custom dpkg options
	185	Configuration::Item const *Opts = _config->Tree("DPkg::Options");
	186	if (Opts != 0)
	187	{
	188	Opts = Opts->Child;
	189	for (; Opts != 0; Opts = Opts->Next)
	190	{
	191	if (Opts->Value.empty() == true)
	192	continue;
	193	Args.push_back(Opts->Value.c_str());
	194	}
	195	}
	196
	197	size_t const BaseArgs = Args.size();
	198	// we need to detect if we can qualify packages with the architecture or not
	199	Args.push_back("--assert-multi-arch");
	200	Args.push_back(NULL);
	201
	202
	203	pid_t dpkgAssertMultiArch = ExecFork();
	204	if (dpkgAssertMultiArch == 0)
	205	{
	206	std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory");
6fddb156 DK	207	// redirect everything to the ultimate sink as we only need the exit-status
	208	int const nullfd = open("/dev/null", O_RDONLY);
	209	dup2(nullfd, STDIN_FILENO);
	210	dup2(nullfd, STDOUT_FILENO);
	211	dup2(nullfd, STDERR_FILENO);
2510eea4	212	if (chrootDir != "/" && chroot(chrootDir.c_str()) != 0 && chdir("/") != 0)
36a0c0f7	213	_error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --assert-multi-arch", chrootDir.c_str());
6fddb156 DK	214	execvp(Args[0], (char**) &Args[0]);
	215	_error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
	216	_exit(2);
	217	}
	218
c4cca791	219	APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1);
a09e4489 DK	220	if (pkgset.empty() == true)
	221	return _error->Error(_("No packages found"));
	222
	223	bool const MarkHold = strcasecmp(CmdL.FileList[0],"hold") == 0;
	224
5eb9a474	225	for (APT::PackageList::iterator Pkg = pkgset.begin(); Pkg != pkgset.end();)
a09e4489 DK	226	{
	227	if ((Pkg->SelectedState == pkgCache::State::Hold) == MarkHold)
	228	{
	229	if (MarkHold == true)
	230	ioprintf(c1out,_("%s was already set on hold.\n"), Pkg.FullName(true).c_str());
	231	else
	232	ioprintf(c1out,_("%s was already not hold.\n"), Pkg.FullName(true).c_str());
5eb9a474	233	Pkg = pkgset.erase(Pkg, true);
a09e4489	234	}
5eb9a474 DK	235	else
5eb9a474 DK	236	++Pkg;
a09e4489 DK	237	}
a09e4489 DK	238
6fddb156 DK	239	bool dpkgMultiArch = false;
	240	if (dpkgAssertMultiArch > 0)
	241	{
	242	int Status = 0;
	243	while (waitpid(dpkgAssertMultiArch, &Status, 0) != dpkgAssertMultiArch)
	244	{
	245	if (errno == EINTR)
	246	continue;
	247	_error->WarningE("dpkgGo", _("Waited for %s but it wasn't there"), "dpkg --assert-multi-arch");
	248	break;
	249	}
	250	if (WIFEXITED(Status) == true && WEXITSTATUS(Status) == 0)
	251	dpkgMultiArch = true;
	252	}
	253
a09e4489 DK	254	if (pkgset.empty() == true)
	255	return true;
	256
	257	if (_config->FindB("APT::Mark::Simulate", false) == true)
	258	{
c4cca791	259	for (APT::PackageList::iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
a09e4489 DK	260	{
	261	if (MarkHold == false)
	262	ioprintf(c1out,_("%s set on hold.\n"), Pkg.FullName(true).c_str());
	263	else
	264	ioprintf(c1out,_("Canceled hold on %s.\n"), Pkg.FullName(true).c_str());
	265	}
	266	return true;
	267	}
	268
6fddb156 DK	269	Args.erase(Args.begin() + BaseArgs, Args.end());
	270	Args.push_back("--set-selections");
	271	Args.push_back(NULL);
	272
	273	int external[2] = {-1, -1};
	274	if (pipe(external) != 0)
	275	return _error->WarningE("DoHold", "Can't create IPC pipe for dpkg --set-selections");
	276
	277	pid_t dpkgSelection = ExecFork();
	278	if (dpkgSelection == 0)
	279	{
	280	close(external[1]);
	281	std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory");
2510eea4	282	if (chrootDir != "/" && chroot(chrootDir.c_str()) != 0 && chdir("/") != 0)
6fddb156 DK	283	_error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --set-selections", chrootDir.c_str());
6fddb156 DK	284	int const nullfd = open("/dev/null", O_RDONLY);
5834d7a1 DK	285	dup2(external[0], STDIN_FILENO);
5834d7a1 DK	286	dup2(nullfd, STDOUT_FILENO);
6fddb156 DK	287	dup2(nullfd, STDERR_FILENO);
	288	execvp(Args[0], (char**) &Args[0]);
	289	_error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
	290	_exit(2);
	291	}
a09e4489	292
6fddb156	293	FILE* dpkg = fdopen(external[1], "w");
c4cca791	294	for (APT::PackageList::iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
a09e4489	295	{
b855a400 DK	296	if (dpkgMultiArch == false)
	297	fprintf(dpkg, "%s", Pkg.FullName(true).c_str());
	298	else
	299	{
	300	if (Pkg->CurrentVer != 0)
	301	fprintf(dpkg, "%s:%s", Pkg.Name(), Pkg.CurrentVer().Arch());
	302	else if (Pkg.VersionList().end() == false)
	303	fprintf(dpkg, "%s:%s", Pkg.Name(), Pkg.VersionList().Arch());
	304	else
	305	fprintf(dpkg, "%s", Pkg.FullName(false).c_str());
	306	}
	307
a09e4489 DK	308	if (MarkHold == true)
a09e4489 DK	309	{
b855a400	310	fprintf(dpkg, " hold\n");
a09e4489 DK	311	ioprintf(c1out,_("%s set on hold.\n"), Pkg.FullName(true).c_str());
	312	}
	313	else
	314	{
b855a400	315	fprintf(dpkg, " install\n");
a09e4489 DK	316	ioprintf(c1out,_("Canceled hold on %s.\n"), Pkg.FullName(true).c_str());
	317	}
	318	}
6fddb156	319	fclose(dpkg);
a09e4489	320
6fddb156 DK	321	if (dpkgSelection > 0)
	322	{
	323	int Status = 0;
	324	while (waitpid(dpkgSelection, &Status, 0) != dpkgSelection)
	325	{
	326	if (errno == EINTR)
	327	continue;
	328	_error->WarningE("dpkgGo", _("Waited for %s but it wasn't there"), "dpkg --set-selection");
	329	break;
	330	}
	331	if (WIFEXITED(Status) == true && WEXITSTATUS(Status) == 0)
	332	return true;
	333	}
	334	return _error->Error(_("Executing dpkg failed. Are you root?"));
a09e4489 DK	335	}
	336	/}}}/
	337	/* ShowHold - show packages set on hold in dpkg status {{{*/
	338	bool ShowHold(CommandLine &CmdL)
	339	{
	340	pkgCacheFile CacheFile;
	341	pkgCache *Cache = CacheFile.GetPkgCache();
	342	if (unlikely(Cache == NULL))
	343	return false;
	344
	345	std::vector<string> packages;
	346
	347	if (CmdL.FileList[1] == 0)
	348	{
	349	packages.reserve(50); // how many holds are realistic? I hope just a few…
	350	for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
	351	if (P->SelectedState == pkgCache::State::Hold)
	352	packages.push_back(P.FullName(true));
	353	}
	354	else
	355	{
	356	APT::CacheSetHelper helper(false); // do not show errors
	357	APT::PackageSet pkgset = APT::PackageSet::FromCommandLine(CacheFile, CmdL.FileList + 1, helper);
	358	packages.reserve(pkgset.size());
	359	for (APT::PackageSet::const_iterator P = pkgset.begin(); P != pkgset.end(); ++P)
	360	if (P->SelectedState == pkgCache::State::Hold)
	361	packages.push_back(P.FullName(true));
	362	}
	363
	364	std::sort(packages.begin(), packages.end());
	365
c98fb5e0 DK	366	for (vector<string>::const_iterator I = packages.begin(); I != packages.end(); ++I)
	367	std::cout << *I << std::endl;
	368
	369	return true;
	370	}
	371	/}}}/
	372	// ShowHelp - Show a help screen /{{{/
	373	// ---------------------------------------------------------------------
	374	/* */
	375	bool ShowHelp(CommandLine &CmdL)
	376	{
9179f697	377	ioprintf(cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,PACKAGE_VERSION,
c98fb5e0 DK	378	COMMON_ARCH,__DATE__,__TIME__);
	379
	380	cout <<
	381	_("Usage: apt-mark [options] {auto\|manual} pkg1 [pkg2 ...]\n"
	382	"\n"
	383	"apt-mark is a simple command line interface for marking packages\n"
3999d158	384	"as manually or automatically installed. It can also list marks.\n"
c98fb5e0 DK	385	"\n"
	386	"Commands:\n"
	387	" auto - Mark the given packages as automatically installed\n"
	388	" manual - Mark the given packages as manually installed\n"
1aef66d5 MV	389	" hold - Mark a package as held back\n"
	390	" unhold - Unset a package set as held back\n"
	391	" showauto - Print the list of automatically installed packages\n"
	392	" showmanual - Print the list of manually installed packages\n"
	393	" showhold - Print the list of package on hold\n"
c98fb5e0 DK	394	"\n"
	395	"Options:\n"
	396	" -h This help text.\n"
	397	" -q Loggable output - no progress indicator\n"
	398	" -qq No output except for errors\n"
	399	" -s No-act. Just prints what would be done.\n"
	400	" -f read/write auto/manual marking in the given file\n"
	401	" -c=? Read this configuration file\n"
	402	" -o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp\n"
	403	"See the apt-mark(8) and apt.conf(5) manual pages for more information.")
	404	<< std::endl;
	405	return true;
	406	}
	407	/}}}/
	408	int main(int argc,const char argv[]) /{{{*/
	409	{
c98fb5e0 DK	410	CommandLine::Dispatch Cmds[] = {{"help",&ShowHelp},
	411	{"auto",&DoAuto},
	412	{"manual",&DoAuto},
a09e4489 DK	413	{"hold",&DoHold},
a09e4489 DK	414	{"unhold",&DoHold},
c98fb5e0 DK	415	{"showauto",&ShowAuto},
c98fb5e0 DK	416	{"showmanual",&ShowAuto},
a09e4489 DK	417	{"showhold",&ShowHold},
	418	// be nice and forgive the typo
	419	{"showholds",&ShowHold},
	420	// be nice and forgive it as it is technical right
	421	{"install",&DoHold},
c98fb5e0 DK	422	// obsolete commands for compatibility
	423	{"markauto", &DoMarkAuto},
	424	{"unmarkauto", &DoMarkAuto},
	425	{0,0}};
	426
b9179170 MV	427	std::vector<CommandLine::Args> Args = getCommandArgs("apt-mark", CommandLine::GetCommand(Cmds, argc, argv));
b9179170 MV	428
c98fb5e0 DK	429	// Set up gettext support
	430	setlocale(LC_ALL,"");
	431	textdomain(PACKAGE);
	432
	433	// Parse the command line and initialize the package library
b9179170	434	CommandLine CmdL(Args.data(),_config);
c98fb5e0 DK	435	if (pkgInitConfig(*_config) == false \|\|
	436	CmdL.Parse(argc,argv) == false \|\|
	437	pkgInitSystem(*_config,_system) == false)
	438	{
	439	if (_config->FindB("version") == true)
	440	ShowHelp(CmdL);
	441	_error->DumpErrors();
	442	return 100;
	443	}
	444
	445	// See if the help should be shown
	446	if (_config->FindB("help") == true \|\|
	447	_config->FindB("version") == true \|\|
	448	CmdL.FileSize() == 0)
	449	{
	450	ShowHelp(CmdL);
	451	return 0;
	452	}
	453
	454	// Deal with stdout not being a tty
	455	if (!isatty(STDOUT_FILENO) && _config->FindI("quiet", -1) == -1)
	456	_config->Set("quiet","1");
	457
	458	// Setup the output streams
	459	c0out.rdbuf(cout.rdbuf());
	460	c1out.rdbuf(cout.rdbuf());
	461	c2out.rdbuf(cout.rdbuf());
	462	if (_config->FindI("quiet",0) > 0)
	463	c0out.rdbuf(devnull.rdbuf());
	464	if (_config->FindI("quiet",0) > 1)
	465	c1out.rdbuf(devnull.rdbuf());
	466
	467	// Match the operation
	468	CmdL.DispatchArg(Cmds);
	469
	470	// Print any errors or warnings found during parsing
	471	bool const Errors = _error->PendingError();
	472	if (_config->FindI("quiet",0) > 0)
	473	_error->DumpErrors();
	474	else
	475	_error->DumpErrors(GlobalError::DEBUG);
	476	return Errors == true ? 100 : 0;
	477	}
	478	/}}}/