##################################################################### */
/*}}}*/
// Include Files /*{{{*/
+#include <config.h>
+
#include <apt-pkg/debsystem.h>
#include <apt-pkg/debversion.h>
#include <apt-pkg/debindexfile.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/error.h>
#include <apt-pkg/fileutl.h>
-#include <apti18n.h>
-#include <sys/types.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
+
+#include <algorithm>
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <string>
+#include <vector>
#include <unistd.h>
#include <dirent.h>
#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <fcntl.h>
+
+#include <apti18n.h>
/*}}}*/
+using std::string;
+
debSystem debSys;
+class APT_HIDDEN debSystemPrivate {
+public:
+ debSystemPrivate() : LockFD(-1), LockCount(0), StatusFile(0)
+ {
+ }
+ // For locking support
+ int LockFD;
+ unsigned LockCount;
+
+ debStatusIndex *StatusFile;
+};
+
// System::debSystem - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
-debSystem::debSystem()
+debSystem::debSystem() : pkgSystem("Debian dpkg interface", &debVS), d(new debSystemPrivate())
{
- LockFD = -1;
- LockCount = 0;
- StatusFile = 0;
-
- Label = "Debian dpkg interface";
- VS = &debVS;
}
/*}}}*/
// System::~debSystem - Destructor /*{{{*/
/* */
debSystem::~debSystem()
{
- delete StatusFile;
+ delete d->StatusFile;
+ delete d;
}
/*}}}*/
// System::Lock - Get the lock /*{{{*/
bool debSystem::Lock()
{
// Disable file locking
- if (_config->FindB("Debug::NoLocking",false) == true || LockCount > 1)
+ if (_config->FindB("Debug::NoLocking",false) == true || d->LockCount > 1)
{
- LockCount++;
+ d->LockCount++;
return true;
}
// Create the lockfile
string AdminDir = flNotFile(_config->Find("Dir::State::status"));
- LockFD = GetLock(AdminDir + "lock");
- if (LockFD == -1)
+ d->LockFD = GetLock(AdminDir + "lock");
+ if (d->LockFD == -1)
{
if (errno == EACCES || errno == EAGAIN)
return _error->Error(_("Unable to lock the administration directory (%s), "
// See if we need to abort with a dirty journal
if (CheckUpdates() == true)
{
- close(LockFD);
- LockFD = -1;
+ close(d->LockFD);
+ d->LockFD = -1;
const char *cmd;
if (getenv("SUDO_USER") != NULL)
cmd = "sudo dpkg --configure -a";
"run '%s' to correct the problem. "), cmd);
}
- LockCount++;
+ d->LockCount++;
return true;
}
/* */
bool debSystem::UnLock(bool NoErrors)
{
- if (LockCount == 0 && NoErrors == true)
+ if (d->LockCount == 0 && NoErrors == true)
return false;
- if (LockCount < 1)
+ if (d->LockCount < 1)
return _error->Error(_("Not locked"));
- if (--LockCount == 0)
+ if (--d->LockCount == 0)
{
- close(LockFD);
- LockCount = 0;
+ close(d->LockFD);
+ d->LockCount = 0;
}
return true;
Cnf.CndSet("Dir::State::status","/var/lib/dpkg/status");
Cnf.CndSet("Dir::Bin::dpkg","/usr/bin/dpkg");
- if (StatusFile) {
- delete StatusFile;
- StatusFile = 0;
+ if (d->StatusFile) {
+ delete d->StatusFile;
+ d->StatusFile = 0;
}
return true;
/*}}}*/
// System::ArchiveSupported - Is a file format supported /*{{{*/
// ---------------------------------------------------------------------
-/* The standard name for a deb is 'deb'.. There are no seperate versions
+/* The standard name for a deb is 'deb'.. There are no separate versions
of .deb to worry about.. */
-bool debSystem::ArchiveSupported(const char *Type)
+APT_PURE bool debSystem::ArchiveSupported(const char *Type)
{
if (strcmp(Type,"deb") == 0)
return true;
// System::AddStatusFiles - Register the status files /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool debSystem::AddStatusFiles(vector<pkgIndexFile *> &List)
+bool debSystem::AddStatusFiles(
std::vector<pkgIndexFile *> &List)
{
- if (StatusFile == 0)
- StatusFile = new debStatusIndex(_config->FindFile("Dir::State::status"));
- List.push_back(StatusFile);
+ if (d->StatusFile == 0)
+ d->StatusFile = new debStatusIndex(_config->FindFile("Dir::State::status"));
+ List.push_back(d->StatusFile);
return true;
}
/*}}}*/
bool debSystem::FindIndex(pkgCache::PkgFileIterator File,
pkgIndexFile *&Found) const
{
- if (StatusFile == 0)
+ if (d->StatusFile == 0)
return false;
- if (StatusFile->FindInCache(*File.Cache()) == File)
+ if (d->StatusFile->FindInCache(*File.Cache()) == File)
{
- Found = StatusFile;
+ Found = d->StatusFile;
return true;
}
return false;
}
/*}}}*/
+
+std::string debSystem::GetDpkgExecutable() /*{{{*/
+{
+ 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);
+ }
+ return Tmp;
+}
+ /*}}}*/
+std::vector<std::string> debSystem::GetDpkgBaseCommand() /*{{{*/
+{
+ // Generate the base argument list for dpkg
+ std::vector<std::string> Args = { GetDpkgExecutable() };
+ // 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);
+ }
+ }
+ return Args;
+}
+ /*}}}*/
+void debSystem::DpkgChrootDirectory() /*{{{*/
+{
+ std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory");
+ if (chrootDir == "/")
+ return;
+ std::cerr << "Chrooting into " << chrootDir << std::endl;
+ if (chroot(chrootDir.c_str()) != 0)
+ _exit(100);
+ if (chdir("/") != 0)
+ _exit(100);
+}
+ /*}}}*/
+bool debSystem::SupportsMultiArch() /*{{{*/
+{
+ // Generate the base argument list for dpkg
+ std::vector<std::string> const Args = GetDpkgBaseCommand();
+ std::vector<const char *> cArgs(Args.size(), NULL);
+ std::transform(Args.begin(), Args.end(), cArgs.begin(), [](std::string const &s) { return s.c_str(); });
+
+ // we need to detect if we can qualify packages with the architecture or not
+ cArgs.push_back("--assert-multi-arch");
+ cArgs.push_back(NULL);
+
+ pid_t dpkgAssertMultiArch = ExecFork();
+ if (dpkgAssertMultiArch == 0)
+ {
+ DpkgChrootDirectory();
+ // 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);
+ execvp(cArgs[0], (char**) &cArgs[0]);
+ _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
+ _exit(2);
+ }
+
+ 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)
+ return true;
+ }
+ return false;
+}
+ /*}}}*/
projects / apt.git / blobdiff