-// SigVerify::RunGPGV - returns the command needed for verify /*{{{*/
-// ---------------------------------------------------------------------
-/* Generating the commandline for calling gpgv is somehow complicated as
- we need to add multiple keyrings and user supplied options. Also, as
- the cdrom code currently can not use the gpgv method we have two places
- these need to be done - so the place for this method is wrong but better
- than code duplication… */
-bool SigVerify::RunGPGV(std::string const &File, std::string const &FileGPG,
- int const &statusfd, int fd[2])
-{
- if (File == FileGPG)
- {
- #define SIGMSG "-----BEGIN PGP SIGNED MESSAGE-----\n"
- char buffer[sizeof(SIGMSG)];
- FILE* gpg = fopen(File.c_str(), "r");
- if (gpg == NULL)
- return _error->Errno("RunGPGV", _("Could not open file %s"), File.c_str());
- char const * const test = fgets(buffer, sizeof(buffer), gpg);
- fclose(gpg);
- if (test == NULL || strcmp(buffer, SIGMSG) != 0)
- return _error->Error(_("File %s doesn't start with a clearsigned message"), File.c_str());
- #undef SIGMSG
- }
-
-
- string const gpgvpath = _config->Find("Dir::Bin::gpg", "/usr/bin/gpgv");
- // FIXME: remove support for deprecated APT::GPGV setting
- string const trustedFile = _config->Find("APT::GPGV::TrustedKeyring", _config->FindFile("Dir::Etc::Trusted"));
- string const trustedPath = _config->FindDir("Dir::Etc::TrustedParts");
-
- bool const Debug = _config->FindB("Debug::Acquire::gpgv", false);
-
- if (Debug == true)
- {
- std::clog << "gpgv path: " << gpgvpath << std::endl;
- std::clog << "Keyring file: " << trustedFile << std::endl;
- std::clog << "Keyring path: " << trustedPath << std::endl;
- }
-
- std::vector<string> keyrings;
- if (DirectoryExists(trustedPath))
- keyrings = GetListOfFilesInDir(trustedPath, "gpg", false, true);
- if (RealFileExists(trustedFile) == true)
- keyrings.push_back(trustedFile);
-
- std::vector<const char *> Args;
- Args.reserve(30);
-
- if (keyrings.empty() == true)
- {
- // TRANSLATOR: %s is the trusted keyring parts directory
- return _error->Error(_("No keyring installed in %s."),
- _config->FindDir("Dir::Etc::TrustedParts").c_str());
- }
-
- Args.push_back(gpgvpath.c_str());
- Args.push_back("--ignore-time-conflict");
-
- if (statusfd != -1)
- {
- Args.push_back("--status-fd");
- char fd[10];
- snprintf(fd, sizeof(fd), "%i", statusfd);
- Args.push_back(fd);
- }
-
- for (vector<string>::const_iterator K = keyrings.begin();
- K != keyrings.end(); ++K)
- {
- Args.push_back("--keyring");
- Args.push_back(K->c_str());
- }
-
- Configuration::Item const *Opts;
- Opts = _config->Tree("Acquire::gpgv::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());
- }
- }
-
- Args.push_back(FileGPG.c_str());
- if (FileGPG != File)
- Args.push_back(File.c_str());
- Args.push_back(NULL);
-
- if (Debug == true)
- {
- std::clog << "Preparing to exec: " << gpgvpath;
- for (std::vector<const char *>::const_iterator a = Args.begin(); *a != NULL; ++a)
- std::clog << " " << *a;
- std::clog << std::endl;
- }
-
- if (statusfd != -1)
- {
- int const nullfd = open("/dev/null", O_RDONLY);
- close(fd[0]);
- // Redirect output to /dev/null; we read from the status fd
- dup2(nullfd, STDOUT_FILENO);
- dup2(nullfd, STDERR_FILENO);
- // Redirect the pipe to the status fd (3)
- dup2(fd[1], statusfd);
-
- putenv((char *)"LANG=");
- putenv((char *)"LC_ALL=");
- putenv((char *)"LC_MESSAGES=");
- }
-
- execvp(gpgvpath.c_str(), (char **) &Args[0]);
- return true;
projects / apt.git / blobdiff