X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/a2228a452bd3be54eaba1047726a79509150c2da..63b399509d46df71e8d16bd0d362eb23aa6558d7:/apt-pkg/deb/dpkgpm.cc diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc index 0d73733d5..b187efb40 100644 --- a/apt-pkg/deb/dpkgpm.cc +++ b/apt-pkg/deb/dpkgpm.cc @@ -10,53 +10,71 @@ // Includes /*{{{*/ #include -#include -#include +#include #include #include -#include -#include +#include +#include #include -#include -#include #include +#include +#include +#include +#include +#include +#include -#include -#include +#include #include +#include +#include +#include +#include +#include +#include +#include +#include #include #include -#include +#include #include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - #include +#include #include -#include -#include -#include +#include +#include +#include +#include +#include +#include +#include +#include #include /*}}}*/ using namespace std; +APT_PURE static unsigned int +EnvironmentSize() +{ + unsigned int size = 0; + char **envp = environ; + + while (*envp != NULL) + size += strlen (*envp++) + 1; + + return size; +} + class pkgDPkgPMPrivate { public: pkgDPkgPMPrivate() : stdin_is_dev_null(false), dpkgbuf_pos(0), - term_out(NULL), history_out(NULL), - progress(NULL), master(-1), slave(-1) + term_out(NULL), history_out(NULL), + progress(NULL), tt_is_valid(false), master(-1), + slave(NULL), protect_slave_from_dying(-1), + direct_stdin(false) { dpkgbuf[0] = '\0'; } @@ -73,14 +91,17 @@ public: APT::Progress::PackageManager *progress; // pty stuff - struct termios tt; + struct termios tt; + bool tt_is_valid; int master; - int slave; + char * slave; + int protect_slave_from_dying; // signals sigset_t sigmask; sigset_t original_sigmask; + bool direct_stdin; }; namespace @@ -395,10 +416,14 @@ bool pkgDPkgPM::SendPkgsInfo(FILE * const F, unsigned int const &Version) that are due to be installed. */ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf) { + bool result = true; + Configuration::Item const *Opts = _config->Tree(Cnf); if (Opts == 0 || Opts->Child == 0) return true; Opts = Opts->Child; + + sighandler_t old_sigpipe = signal(SIGPIPE, SIG_IGN); unsigned int Count = 1; for (; Opts != 0; Opts = Opts->Next, Count++) @@ -406,6 +431,10 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf) if (Opts->Value.empty() == true) continue; + if(_config->FindB("Debug::RunScripts", false) == true) + std::clog << "Running external script with list of all .deb file: '" + << Opts->Value << "'" << std::endl; + // Determine the protocol version string OptSec = Opts->Value; string::size_type Pos; @@ -420,8 +449,10 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf) std::set KeepFDs; MergeKeepFdsFromConfiguration(KeepFDs); int Pipes[2]; - if (pipe(Pipes) != 0) - return _error->Errno("pipe","Failed to create IPC pipe to subprocess"); + if (pipe(Pipes) != 0) { + result = _error->Errno("pipe","Failed to create IPC pipe to subprocess"); + break; + } if (InfoFD != (unsigned)Pipes[0]) SetCloseExec(Pipes[0],true); else @@ -455,8 +486,10 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf) } close(Pipes[0]); FILE *F = fdopen(Pipes[1],"w"); - if (F == 0) - return _error->Errno("fdopen","Faild to open new FD"); + if (F == 0) { + result = _error->Errno("fdopen","Faild to open new FD"); + break; + } // Feed it the filenames. if (Version <= 1) @@ -484,14 +517,17 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf) fclose(F); // Clean up the sub process - if (ExecWait(Process,Opts->Value.c_str()) == false) - return _error->Error("Failure running script %s",Opts->Value.c_str()); + if (ExecWait(Process,Opts->Value.c_str()) == false) { + result = _error->Error("Failure running script %s",Opts->Value.c_str()); + break; + } } + signal(SIGPIPE, old_sigpipe); - return true; + return result; } /*}}}*/ -// DPkgPM::DoStdin - Read stdin and pass to slave pty /*{{{*/ +// DPkgPM::DoStdin - Read stdin and pass to master pty /*{{{*/ // --------------------------------------------------------------------- /* */ @@ -545,8 +581,8 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line) 'status: : ' 'status: :: ' - 'processing: {install,configure,remove,purge,disappear,trigproc}: pkg' - 'processing: {install,configure,remove,purge,disappear,trigproc}: trigger' + 'processing: {install,upgrade,configure,remove,purge,disappear,trigproc}: pkg' + 'processing: {install,upgrade,configure,remove,purge,disappear,trigproc}: trigger' */ // we need to split on ": " (note the appended space) as the ':' is @@ -568,15 +604,17 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line) std::string prefix = APT::String::Strip(list[0]); std::string pkgname; std::string action; - ostringstream status; // "processing" has the form "processing: action: pkg or trigger" - // with action = ["install", "configure", "remove", "purge", "disappear", - // "trigproc"] + // with action = ["install", "upgrade", "configure", "remove", "purge", + // "disappear", "trigproc"] if (prefix == "processing") { pkgname = APT::String::Strip(list[2]); action = APT::String::Strip(list[1]); + // we don't care for the difference (as dpkg doesn't really either) + if (action == "upgrade") + action = "install"; } // "status" has the form: "status: pkg: state" // with state in ["half-installed", "unpacked", "half-configured", @@ -603,15 +641,15 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line) { if(action == "error") { - d->progress->Error(list[1], PackagesDone, PackagesTotal, + d->progress->Error(pkgname, PackagesDone, PackagesTotal, list[3]); pkgFailures++; - WriteApportReport(list[1].c_str(), list[3].c_str()); + WriteApportReport(pkgname.c_str(), list[3].c_str()); return; } else if(action == "conffile-prompt") { - d->progress->ConffilePrompt(list[1], PackagesDone, PackagesTotal, + d->progress->ConffilePrompt(pkgname, PackagesDone, PackagesTotal, list[3]); return; } @@ -620,27 +658,26 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line) // at this point we know that we should have a valid pkgname, so build all // the info from it - // dpkg does not send always send "pkgname:arch" so we add it here - // if needed + // dpkg does not always send "pkgname:arch" so we add it here if needed if (pkgname.find(":") == std::string::npos) { - // find the package in the group that is in a touched by dpkg - // if there are multiple dpkg will send us a full pkgname:arch + // find the package in the group that is touched by dpkg + // if there are multiple pkgs dpkg would send us a full pkgname:arch pkgCache::GrpIterator Grp = Cache.FindGrp(pkgname); - if (Grp.end() == false) + if (Grp.end() == false) { - pkgCache::PkgIterator P = Grp.PackageList(); - for (; P.end() != true; P = Grp.NextPkg(P)) - { - if(Cache[P].Mode != pkgDepCache::ModeKeep) - { - pkgname = P.FullName(); - break; - } - } + pkgCache::PkgIterator P = Grp.PackageList(); + for (; P.end() != true; P = Grp.NextPkg(P)) + { + if(Cache[P].Keep() == false || Cache[P].ReInstall() == true) + { + pkgname = P.FullName(); + break; + } + } } } - + const char* const pkg = pkgname.c_str(); std::string short_pkgname = StringSplit(pkgname, ":")[0]; std::string arch = ""; @@ -679,28 +716,29 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line) if (prefix == "status") { vector const &states = PackageOps[pkg]; - const char *next_action = NULL; if(PackageOpsDone[pkg] < states.size()) - next_action = states[PackageOpsDone[pkg]].state; - // check if the package moved to the next dpkg state - if(next_action && (action == next_action)) { - // only read the translation if there is actually a next - // action - const char *translation = _(states[PackageOpsDone[pkg]].str); - std::string msg; - - // we moved from one dpkg state to a new one, report that - PackageOpsDone[pkg]++; - PackagesDone++; - - strprintf(msg, translation, i18n_pkgname.c_str()); - d->progress->StatusChanged(pkgname, PackagesDone, PackagesTotal, msg); - + char const * const next_action = states[PackageOpsDone[pkg]].state; + if (next_action && Debug == true) + std::clog << "(parsed from dpkg) pkg: " << short_pkgname + << " action: " << action << " (expected: '" << next_action << "' " + << PackageOpsDone[pkg] << " of " << states.size() << ")" << endl; + + // check if the package moved to the next dpkg state + if(next_action && (action == next_action)) + { + // only read the translation if there is actually a next action + char const * const translation = _(states[PackageOpsDone[pkg]].str); + + // we moved from one dpkg state to a new one, report that + ++PackageOpsDone[pkg]; + ++PackagesDone; + + std::string msg; + strprintf(msg, translation, i18n_pkgname.c_str()); + d->progress->StatusChanged(pkgname, PackagesDone, PackagesTotal, msg); + } } - if (Debug == true) - std::clog << "(parsed from dpkg) pkg: " << short_pkgname - << " action: " << action << endl; } } /*}}}*/ @@ -1011,6 +1049,12 @@ void pkgDPkgPM::BuildPackagesProgressMap() PackagesTotal++; } } + /* one extra: We don't want the progress bar to reach 100%, especially not + if we call dpkg --configure --pending and process a bunch of triggers + while showing 100%. Also, spindown takes a while, so never reaching 100% + is way more correct than reaching 100% while still doing stuff even if + doing it this way is slightly bending the rules */ + ++PackagesTotal; } /*}}}*/ #if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR < 13) @@ -1028,56 +1072,145 @@ bool pkgDPkgPM::Go(int StatusFd) void pkgDPkgPM::StartPtyMagic() { - // setup the pty and stuff - struct winsize win; + if (_config->FindB("Dpkg::Use-Pty", true) == false) + { + d->master = -1; + if (d->slave != NULL) + free(d->slave); + d->slave = NULL; + return; + } + + if (isatty(STDIN_FILENO) == 0) + d->direct_stdin = true; - // if tcgetattr does not return zero there was a error - // and we do not do any pty magic _error->PushToStack(); - if (tcgetattr(STDOUT_FILENO, &d->tt) == 0) + + d->master = posix_openpt(O_RDWR | O_NOCTTY); + if (d->master == -1) + _error->Errno("posix_openpt", _("Can not write log (%s)"), _("Is /dev/pts mounted?")); + else if (unlockpt(d->master) == -1) + _error->Errno("unlockpt", "Unlocking the slave of master fd %d failed!", d->master); + else { - ioctl(1, TIOCGWINSZ, (char *)&win); - if (_config->FindB("Dpkg::Use-Pty", true) == false) - { - d->master = d->slave = -1; - } else if (openpty(&d->master, &d->slave, NULL, &d->tt, &win) < 0) - { - _error->Errno("openpty", _("Can not write log (%s)"), _("Is /dev/pts mounted?")); - d->master = d->slave = -1; - } else { - struct termios rtt; - rtt = d->tt; - cfmakeraw(&rtt); - rtt.c_lflag &= ~ECHO; - rtt.c_lflag |= ISIG; + char const * const slave_name = ptsname(d->master); + if (slave_name == NULL) + _error->Errno("ptsname", "Getting name for slave of master fd %d failed!", d->master); + else + { + d->slave = strdup(slave_name); + if (d->slave == NULL) + _error->Errno("strdup", "Copying name %s for slave of master fd %d failed!", slave_name, d->master); + else if (grantpt(d->master) == -1) + _error->Errno("grantpt", "Granting access to slave %s based on master fd %d failed!", slave_name, d->master); + else if (tcgetattr(STDIN_FILENO, &d->tt) == 0) + { + d->tt_is_valid = true; + struct termios raw_tt; + // copy window size of stdout if its a 'good' terminal + if (tcgetattr(STDOUT_FILENO, &raw_tt) == 0) + { + struct winsize win; + if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) < 0) + _error->Errno("ioctl", "Getting TIOCGWINSZ from stdout failed!"); + if (ioctl(d->master, TIOCSWINSZ, &win) < 0) + _error->Errno("ioctl", "Setting TIOCSWINSZ for master fd %d failed!", d->master); + } + if (tcsetattr(d->master, TCSANOW, &d->tt) == -1) + _error->Errno("tcsetattr", "Setting in Start via TCSANOW for master fd %d failed!", d->master); + + raw_tt = d->tt; + cfmakeraw(&raw_tt); + raw_tt.c_lflag &= ~ECHO; + raw_tt.c_lflag |= ISIG; // block SIGTTOU during tcsetattr to prevent a hang if // the process is a member of the background process group // http://www.opengroup.org/onlinepubs/000095399/functions/tcsetattr.html sigemptyset(&d->sigmask); sigaddset(&d->sigmask, SIGTTOU); sigprocmask(SIG_BLOCK,&d->sigmask, &d->original_sigmask); - tcsetattr(0, TCSAFLUSH, &rtt); - sigprocmask(SIG_SETMASK, &d->original_sigmask, 0); - } + if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw_tt) == -1) + _error->Errno("tcsetattr", "Setting in Start via TCSAFLUSH for stdin failed!"); + sigprocmask(SIG_SETMASK, &d->original_sigmask, NULL); + + } + if (d->slave != NULL) + { + /* on linux, closing (and later reopening) all references to the slave + makes the slave a death end, so we open it here to have one open all + the time. We could use this fd in SetupSlavePtyMagic() for linux, but + on kfreebsd we get an incorrect ("step like") output then while it has + no problem with closing all references… so to avoid platform specific + code here we combine both and be happy once more */ + d->protect_slave_from_dying = open(d->slave, O_RDWR | O_CLOEXEC | O_NOCTTY); + } + } + } + + if (_error->PendingError() == true) + { + if (d->master != -1) + { + close(d->master); + d->master = -1; } - // complain only if stdout is either a terminal (but still failed) or is an invalid - // descriptor otherwise we would complain about redirection to e.g. /dev/null as well. - else if (isatty(STDOUT_FILENO) == 1 || errno == EBADF) - _error->Errno("tcgetattr", _("Can not write log (%s)"), _("Is stdout a terminal?")); - - if (_error->PendingError() == true) - _error->DumpErrors(std::cerr); - _error->RevertToStack(); + if (d->slave != NULL) + { + free(d->slave); + d->slave = NULL; + } + _error->DumpErrors(std::cerr); + } + _error->RevertToStack(); } +void pkgDPkgPM::SetupSlavePtyMagic() +{ + if(d->master == -1 || d->slave == NULL) + return; + if (close(d->master) == -1) + _error->FatalE("close", "Closing master %d in child failed!", d->master); + d->master = -1; + if (setsid() == -1) + _error->FatalE("setsid", "Starting a new session for child failed!"); + + int const slaveFd = open(d->slave, O_RDWR | O_NOCTTY); + if (slaveFd == -1) + _error->FatalE("open", _("Can not write log (%s)"), _("Is /dev/pts mounted?")); + else if (ioctl(slaveFd, TIOCSCTTY, 0) < 0) + _error->FatalE("ioctl", "Setting TIOCSCTTY for slave fd %d failed!", slaveFd); + else + { + unsigned short i = 0; + if (d->direct_stdin == true) + ++i; + for (; i < 3; ++i) + if (dup2(slaveFd, i) == -1) + _error->FatalE("dup2", "Dupping %d to %d in child failed!", slaveFd, i); + + if (d->tt_is_valid == true && tcsetattr(STDIN_FILENO, TCSANOW, &d->tt) < 0) + _error->FatalE("tcsetattr", "Setting in Setup via TCSANOW for slave fd %d failed!", slaveFd); + } + + if (slaveFd != -1) + close(slaveFd); +} void pkgDPkgPM::StopPtyMagic() { - if(d->slave > 0) - close(d->slave); + if (d->slave != NULL) + free(d->slave); + d->slave = NULL; + if (d->protect_slave_from_dying != -1) + { + close(d->protect_slave_from_dying); + d->protect_slave_from_dying = -1; + } if(d->master >= 0) { - tcsetattr(0, TCSAFLUSH, &d->tt); + if (d->tt_is_valid == true && tcsetattr(STDIN_FILENO, TCSAFLUSH, &d->tt) == -1) + _error->FatalE("tcsetattr", "Setting in Stop via TCSAFLUSH for stdin failed!"); close(d->master); + d->master = -1; } } @@ -1142,8 +1275,15 @@ bool pkgDPkgPM::GoNoABIBreak(APT::Progress::PackageManager *progress) fd_set rfds; struct timespec tv; - unsigned int const MaxArgs = _config->FindI("Dpkg::MaxArgs",8*1024); - unsigned int const MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes",32*1024); + // FIXME: do we really need this limit when we have MaxArgBytes? + unsigned int const MaxArgs = _config->FindI("Dpkg::MaxArgs",32*1024); + + // try to figure out the max environment size + int OSArgMax = sysconf(_SC_ARG_MAX); + if(OSArgMax < 0) + OSArgMax = 32*1024; + OSArgMax -= EnvironmentSize() - 2*1024; + unsigned int const MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes", OSArgMax); bool const NoTriggers = _config->FindB("DPkg::NoTriggers", false); if (RunScripts("DPkg::Pre-Invoke") == false) @@ -1154,9 +1294,8 @@ bool pkgDPkgPM::GoNoABIBreak(APT::Progress::PackageManager *progress) // support subpressing of triggers processing for special // cases like d-i that runs the triggers handling manually - bool const SmartConf = (_config->Find("PackageManager::Configure", "all") != "all"); bool const TriggersPending = _config->FindB("DPkg::TriggersPending", false); - if (_config->FindB("DPkg::ConfigurePending", SmartConf) == true) + if (_config->FindB("DPkg::ConfigurePending", true) == true) List.push_back(Item(Item::ConfigurePending, PkgIterator())); // for the progress @@ -1186,7 +1325,7 @@ bool pkgDPkgPM::GoNoABIBreak(APT::Progress::PackageManager *progress) StartPtyMagic(); // Tell the progress that its starting and fork dpkg - d->progress->Start(); + d->progress->Start(d->master); // this loop is runs once per dpkg operation vector::const_iterator I = List.begin(); @@ -1389,17 +1528,8 @@ bool pkgDPkgPM::GoNoABIBreak(APT::Progress::PackageManager *progress) pid_t Child = ExecFork(KeepFDs); if (Child == 0) { - // This is the child - if(d->slave >= 0 && d->master >= 0) - { - setsid(); - ioctl(d->slave, TIOCSCTTY, 0); - close(d->master); - dup2(d->slave, 0); - dup2(d->slave, 1); - dup2(d->slave, 2); - close(d->slave); - } + // This is the child + SetupSlavePtyMagic(); close(fd[0]); // close the read end of the pipe dpkgChrootDirectory(); @@ -1409,7 +1539,8 @@ bool pkgDPkgPM::GoNoABIBreak(APT::Progress::PackageManager *progress) if (_config->FindB("DPkg::FlushSTDIN",true) == true && isatty(STDIN_FILENO)) { - int Flags,dummy; + int Flags; + int dummy = 0; if ((Flags = fcntl(STDIN_FILENO,F_GETFL,dummy)) < 0) _exit(100); @@ -1473,8 +1604,8 @@ bool pkgDPkgPM::GoNoABIBreak(APT::Progress::PackageManager *progress) // wait for input or output here FD_ZERO(&rfds); - if (d->master >= 0 && !d->stdin_is_dev_null) - FD_SET(0, &rfds); + if (d->master >= 0 && d->direct_stdin == false && d->stdin_is_dev_null == false) + FD_SET(STDIN_FILENO, &rfds); FD_SET(_dpkgin, &rfds); if(d->master >= 0) FD_SET(d->master, &rfds); @@ -1517,28 +1648,18 @@ bool pkgDPkgPM::GoNoABIBreak(APT::Progress::PackageManager *progress) // here but keep the loop going and just report it as a error // for later bool const stopOnError = _config->FindB("Dpkg::StopOnError",true); - - if(stopOnError) - RunScripts("DPkg::Post-Invoke"); - if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV) + if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV) strprintf(d->dpkg_error, "Sub-process %s received a segmentation fault.",Args[0]); else if (WIFEXITED(Status) != 0) strprintf(d->dpkg_error, "Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status)); - else + else strprintf(d->dpkg_error, "Sub-process %s exited unexpectedly",Args[0]); + _error->Error("%s", d->dpkg_error.c_str()); - if(d->dpkg_error.size() > 0) - _error->Error("%s", d->dpkg_error.c_str()); - - if(stopOnError) - { - CloseLog(); - StopPtyMagic(); - d->progress->Stop(); - return false; - } - } + if(stopOnError) + break; + } } // dpkg is done at this point d->progress->Stop(); @@ -1569,10 +1690,10 @@ bool pkgDPkgPM::GoNoABIBreak(APT::Progress::PackageManager *progress) } Cache.writeStateFile(NULL); - return true; + return d->dpkg_error.empty(); } -void SigINT(int sig) { +void SigINT(int /*sig*/) { pkgPackageManager::SigINTStop = true; } /*}}}*/ @@ -1599,7 +1720,7 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg) string::size_type pos; FILE *report; - if (_config->FindB("Dpkg::ApportFailureReport", false) == false) + if (_config->FindB("Dpkg::ApportFailureReport", true) == false) { std::clog << "configured to not write apport reports" << std::endl; return; @@ -1648,11 +1769,12 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg) // do not report dpkg I/O errors, this is a format string, so we compare // the prefix and the suffix of the error with the dpkg error message vector io_errors; - io_errors.push_back(string("failed to read on buffer copy for %s")); - io_errors.push_back(string("failed in write on buffer copy for %s")); - io_errors.push_back(string("short read on buffer copy for %s")); + io_errors.push_back(string("failed to read")); + io_errors.push_back(string("failed to write")); + io_errors.push_back(string("failed to seek")); + io_errors.push_back(string("unexpected end of file or stream")); - for (vector::iterator I = io_errors.begin(); I != io_errors.end(); I++) + for (vector::iterator I = io_errors.begin(); I != io_errors.end(); ++I) { vector list = VectorizeString(dgettext("dpkg", (*I).c_str()), '%'); if (list.size() > 1) { @@ -1767,21 +1889,30 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg) string histfile_name = _config->FindFile("Dir::Log::History"); if (!histfile_name.empty()) { - FILE *log = NULL; - char buf[1024]; - fprintf(report, "DpkgHistoryLog:\n"); - log = fopen(histfile_name.c_str(),"r"); + FILE* log = fopen(histfile_name.c_str(),"r"); if(log != NULL) { + char buf[1024]; while( fgets(buf, sizeof(buf), log) != NULL) fprintf(report, " %s", buf); fclose(log); } } - // log the ordering - const char *ops_str[] = {"Install", "Configure","Remove","Purge"}; + // log the ordering, see dpkgpm.h and the "Ops" enum there + const char *ops_str[] = { + "Install", + "Configure", + "Remove", + "Purge", + "ConfigurePending", + "TriggersPending", + "reserved-1", + "reserved-2", + "reserved-3", + "reserved-4", + }; fprintf(report, "AptOrdering:\n"); for (vector::iterator I = List.begin(); I != List.end(); ++I) if ((*I).Pkg != NULL)