- string dpkgcall = _config->Find("Dir::Bin::dpkg", "dpkg");
- std::vector<string> const dpkgoptions = _config->FindVector("DPkg::options");
- for (std::vector<string>::const_iterator o = dpkgoptions.begin();
- o != dpkgoptions.end(); ++o)
- dpkgcall.append(" ").append(*o);
- dpkgcall.append(" --set-selections");
- FILE *dpkg = popen(dpkgcall.c_str(), "w");
- if (dpkg == NULL)
- return _error->Errno("DoHold", "fdopen on dpkg stdin failed");
-
- for (APT::PackageSet::iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
+ APT::PackageList keepoffset;
+ for (APT::PackageList::iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
+ {
+ if (Pkg->CurrentVer != 0)
+ continue;
+ keepoffset.insert(*Pkg);
+ }
+
+ if (keepoffset.empty() == false)
+ {
+ Args.erase(Args.begin() + BaseArgs, Args.end());
+ Args.push_back("--merge-avail");
+ // FIXME: supported only since 1.17.7 in dpkg
+ Args.push_back("-");
+ Args.push_back(NULL);
+
+ int external[2] = {-1, -1};
+ if (pipe(external) != 0)
+ return _error->WarningE("DoHold", "Can't create IPC pipe for dpkg --merge-avail");
+
+ pid_t dpkgMergeAvail = ExecFork();
+ if (dpkgMergeAvail == 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 --merge-avail", chrootDir.c_str());
+ dup2(external[0], STDIN_FILENO);
+ int const nullfd = open("/dev/null", O_RDONLY);
+ dup2(nullfd, STDOUT_FILENO);
+ execvp(Args[0], (char**) &Args[0]);
+ _error->WarningE("dpkgGo", "Can't get dpkg --merge-avail running!");
+ _exit(2);
+ }
+
+ FILE* dpkg = fdopen(external[1], "w");
+ for (APT::PackageList::iterator Pkg = keepoffset.begin(); Pkg != keepoffset.end(); ++Pkg)
+ {
+ char const * Arch;
+ if (Pkg->VersionList != 0)
+ Arch = Pkg.VersionList().Arch();
+ else
+ Arch = Pkg.Arch();
+ fprintf(dpkg, "Package: %s\nVersion: 0~\nArchitecture: %s\nMaintainer: Dummy Example <dummy@example.org>\n"
+ "Description: dummy package record\n A record is needed to put a package on hold, so here it is.\n\n", Pkg.Name(), Arch);
+ }
+ fclose(dpkg);
+ keepoffset.clear();
+
+ if (dpkgMergeAvail > 0)
+ {
+ int Status = 0;
+ while (waitpid(dpkgMergeAvail, &Status, 0) != dpkgMergeAvail)
+ {
+ if (errno == EINTR)
+ continue;
+ _error->WarningE("dpkgGo", _("Waited for %s but it wasn't there"), "dpkg --merge-avail");
+ break;
+ }
+ if (WIFEXITED(Status) == false || WEXITSTATUS(Status) != 0)
+ return _error->Error(_("Executing dpkg failed. Are you root?"));
+ }
+ }
+
+ 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());
+ dup2(external[0], STDIN_FILENO);
+ execvp(Args[0], (char**) &Args[0]);
+ _error->WarningE("dpkgGo", "Can't get dpkg --set-selections running!");
+ _exit(2);
+ }
+
+ FILE* dpkg = fdopen(external[1], "w");
+ for (APT::PackageList::iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
projects / apt.git / blobdiff