diff options
Diffstat (limited to 'cmdline')
| -rw-r--r-- | cmdline/apt-mark.cc | 129 |
1 files changed, 112 insertions, 17 deletions
diff --git a/cmdline/apt-mark.cc b/cmdline/apt-mark.cc index c7d9b6f6a..b067413e3 100644 --- a/cmdline/apt-mark.cc +++ b/cmdline/apt-mark.cc @@ -14,9 +14,15 @@ #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 <apti18n.h> /*}}}*/ @@ -158,6 +164,56 @@ bool DoHold(CommandLine &CmdL) 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"); + if (chrootDir != "/" && chroot(chrootDir.c_str()) != 0) + _error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --assert-multi-arch", chrootDir.c_str()); + // 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(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")); @@ -177,6 +233,21 @@ bool DoHold(CommandLine &CmdL) } } + 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; @@ -192,36 +263,60 @@ bool DoHold(CommandLine &CmdL) return true; } - 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"); + 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) + _error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --set-selections", chrootDir.c_str()); + int const nullfd = open("/dev/null", O_RDONLY); + dup2(nullfd, STDIN_FILENO); + dup2(external[0], 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 (MarkHold == true) { - fprintf(dpkg, "%s hold\n", Pkg.FullName(true).c_str()); + fprintf(dpkg, "%s hold\n", Pkg.FullName(!dpkgMultiArch).c_str()); ioprintf(c1out,_("%s set on hold.\n"), Pkg.FullName(true).c_str()); } else { - fprintf(dpkg, "%s install\n", Pkg.FullName(true).c_str()); + fprintf(dpkg, "%s install\n", Pkg.FullName(!dpkgMultiArch).c_str()); ioprintf(c1out,_("Canceled hold on %s.\n"), Pkg.FullName(true).c_str()); } } + fclose(dpkg); - int const status = pclose(dpkg); - if (status == -1) - return _error->Errno("DoHold", "dpkg execution failed in the end"); - if (WIFEXITED(status) == false || WEXITSTATUS(status) != 0) - return _error->Error(_("Executing dpkg failed. Are you root?")); - return true; + 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 {{{*/ |