// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: dpkgpm.cc,v 1.28 2004/01/27 02:25:01 mdz Exp $
/* ######################################################################
DPKG Package Manager - Provide an interface to dpkg
-
+
##################################################################### */
/*}}}*/
// Includes /*{{{*/
#include <apt-pkg/configuration.h>
#include <apt-pkg/depcache.h>
#include <apt-pkg/dpkgpm.h>
+#include <apt-pkg/debsystem.h>
#include <apt-pkg/error.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/install-progress.h>
#include <apt-pkg/packagemanager.h>
-#include <apt-pkg/pkgrecords.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/cacheiterators.h>
#include <apt-pkg/macros.h>
#include <errno.h>
#include <fcntl.h>
#include <grp.h>
-#include <pty.h>
#include <pwd.h>
#include <signal.h>
#include <stddef.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
+
#include <algorithm>
+#include <array>
#include <cstring>
#include <iostream>
#include <map>
#include <string>
#include <utility>
#include <vector>
+#include <sstream>
+#include <numeric>
#include <apti18n.h>
/*}}}*/
using namespace std;
-class pkgDPkgPMPrivate
+APT_PURE static string AptHistoryRequestingUser() /*{{{*/
+{
+ const char* EnvKeys[]{"SUDO_UID", "PKEXEC_UID", "PACKAGEKIT_CALLER_UID"};
+
+ for (const auto &Key: EnvKeys)
+ {
+ if (getenv(Key) != nullptr)
+ {
+ int uid = atoi(getenv(Key));
+ if (uid > 0) {
+ struct passwd pwd;
+ struct passwd *result;
+ char buf[255];
+ if (getpwuid_r(uid, &pwd, buf, sizeof(buf), &result) == 0 && result != NULL) {
+ std::string res;
+ strprintf(res, "%s (%d)", pwd.pw_name, uid);
+ return res;
+ }
+ }
+ }
+ }
+ return "";
+}
+ /*}}}*/
+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(NULL)
+ progress(NULL), tt_is_valid(false), master(-1),
+ slave(NULL), protect_slave_from_dying(-1),
+ direct_stdin(false)
{
dpkgbuf[0] = '\0';
}
bool stdin_is_dev_null;
// the buffer we use for the dpkg status-fd reading
char dpkgbuf[1024];
- int dpkgbuf_pos;
+ size_t dpkgbuf_pos;
FILE *term_out;
FILE *history_out;
string dpkg_error;
// pty stuff
struct termios tt;
+ bool tt_is_valid;
int master;
char * slave;
+ int protect_slave_from_dying;
// signals
sigset_t sigmask;
sigset_t original_sigmask;
+ bool direct_stdin;
};
-
+ /*}}}*/
namespace
{
// Maps the dpkg "processing" info to human readable names. Entry 0
const char *target;
public:
- MatchProcessingOp(const char *the_target)
+ explicit MatchProcessingOp(const char *the_target)
: target(the_target)
{
}
};
}
-/* helper function to ionice the given PID
-
- there is no C header for ionice yet - just the syscall interface
- so we use the binary from util-linux
-*/
-static bool
-ionice(int PID)
+// ionice - helper function to ionice the given PID /*{{{*/
+/* there is no C header for ionice yet - just the syscall interface
+ so we use the binary from util-linux */
+static bool ionice(int PID)
{
if (!FileExists("/usr/bin/ionice"))
return false;
}
return ExecWait(Process, "ionice");
}
-
-static std::string 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;
-}
-
-// dpkgChrootDirectory - chrooting for dpkg if needed /*{{{*/
-static void 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);
-}
/*}}}*/
-
-
// FindNowVersion - Helper to find a Version in "now" state /*{{{*/
// ---------------------------------------------------------------------
-/* This is helpful when a package is no longer installed but has residual
+/* This is helpful when a package is no longer installed but has residual
* config files
*/
-static
+static
pkgCache::VerIterator FindNowVersion(const pkgCache::PkgIterator &Pkg)
{
pkgCache::VerIterator Ver;
for (Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
- {
- pkgCache::VerFileIterator Vf = Ver.FileList();
- pkgCache::PkgFileIterator F = Vf.File();
- for (F = Vf.File(); F.end() == false; ++F)
- {
- if (F && F.Archive())
- {
- if (strcmp(F.Archive(), "now"))
- return Ver;
- }
- }
- }
+ for (pkgCache::VerFileIterator Vf = Ver.FileList(); Vf.end() == false; ++Vf)
+ for (pkgCache::PkgFileIterator F = Vf.File(); F.end() == false; ++F)
+ {
+ if (F.Archive() != 0 && strcmp(F.Archive(), "now") == 0)
+ return Ver;
+ }
return Ver;
}
/*}}}*/
// DPkgPM::pkgDPkgPM - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
-pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache)
- : pkgPackageManager(Cache), pkgFailures(0), PackagesDone(0), PackagesTotal(0)
+pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache)
+ : pkgPackageManager(Cache),d(new pkgDPkgPMPrivate()), pkgFailures(0), PackagesDone(0), PackagesTotal(0)
{
- d = new pkgDPkgPMPrivate();
}
/*}}}*/
// DPkgPM::pkgDPkgPM - Destructor /*{{{*/
{
if (Pkg.end() == true)
return false;
-
+
if (Purge == true)
List.push_back(Item(Item::Purge,Pkg));
else
Top = Top->Child;
continue;
}
-
+
while (Top != 0 && Top->Next == 0)
Top = Top->Parent;
if (Top != 0)
Top = Top->Next;
- }
+ }
fprintf(F,"\n");
-
+
// Write out the package actions in order.
for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
{
continue;
pkgDepCache::StateCache &S = Cache[I->Pkg];
-
+
fprintf(F,"%s ",I->Pkg.Name());
// Current version which we are going to replace
fprintf(F,"**ERROR**\n");
else
fprintf(F,"%s\n",I->File.c_str());
- }
+ }
else if (I->Op == Item::Configure)
fprintf(F,"**CONFIGURE**\n");
else if (I->Op == Item::Remove ||
I->Op == Item::Purge)
fprintf(F,"**REMOVE**\n");
-
+
if (ferror(F) != 0)
return false;
}
Opts = Opts->Child;
sighandler_t old_sigpipe = signal(SIGPIPE, SIG_IGN);
-
+
unsigned int Count = 1;
for (; Opts != 0; Opts = Opts->Next, Count++)
{
if ((Pos = OptSec.find(' ')) == string::npos || Pos == 0)
Pos = OptSec.length();
OptSec = "DPkg::Tools::Options::" + string(Opts->Value.c_str(),Pos);
-
+
unsigned int Version = _config->FindI(OptSec+"::Version",1);
unsigned int InfoFD = _config->FindI(OptSec + "::InfoFD", STDIN_FILENO);
-
+
// Create the pipes
std::set<int> KeepFDs;
MergeKeepFdsFromConfiguration(KeepFDs);
strprintf(hookfd, "%d", InfoFD);
setenv("APT_HOOK_INFO_FD", hookfd.c_str(), 1);
- dpkgChrootDirectory();
+ debSystem::DpkgChrootDirectory();
const char *Args[4];
Args[0] = "/bin/sh";
Args[1] = "-c";
close(Pipes[0]);
FILE *F = fdopen(Pipes[1],"w");
if (F == 0) {
- result = _error->Errno("fdopen","Faild to open new FD");
+ result = _error->Errno("fdopen","Failed to open new FD");
break;
}
-
+
// Feed it the filenames.
if (Version <= 1)
{
// No errors here..
if (I->File[0] != '/')
continue;
-
+
/* Feed the filename of each package that is pending install
into the pipe. */
fprintf(F,"%s\n",I->File.c_str());
SendPkgsInfo(F, Version);
fclose(F);
-
+
// Clean up the sub process
if (ExecWait(Process,Opts->Value.c_str()) == false) {
result = _error->Error("Failure running script %s",Opts->Value.c_str());
struct timespec sleepfor = { 0, 500000000 };
nanosleep(&sleepfor, NULL);
return;
- }
- if(len <= 0)
+ }
+ if(len <= 0)
return;
FileFd::Write(1, term_buf, len);
if(d->term_out)
fwrite(term_buf, len, sizeof(char), d->term_out);
}
/*}}}*/
-// DPkgPM::ProcessDpkgStatusBuf /*{{{*/
-// ---------------------------------------------------------------------
-/*
- */
+// DPkgPM::ProcessDpkgStatusBuf /*{{{*/
void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
{
bool const Debug = _config->FindB("Debug::pkgDPkgProgressReporting",false);
/* dpkg sends strings like this:
'status: <pkg>: <pkg qstate>'
'status: <pkg>:<arch>: <pkg qstate>'
-
+
'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
// part of the pkgname:arch information that dpkg sends
- //
+ //
// A dpkg error message may contain additional ":" (like
// "failed in buffer_write(fd) (10, ret=-1): backend dpkg-deb ..."
// so we need to ensure to not split too much
d->progress->StatusChanged(pkgname, PackagesDone, PackagesTotal, msg);
// FIXME: this needs a muliarch testcase
- // FIXME2: is "pkgname" here reliable with dpkg only sending us
+ // FIXME2: is "pkgname" here reliable with dpkg only sending us
// short pkgnames?
if (action == "disappear")
handleDisappearAction(pkgname);
return;
- }
+ }
if (prefix == "status")
{
}
/*}}}*/
// DPkgPM::DoDpkgStatusFd /*{{{*/
-// ---------------------------------------------------------------------
-/*
- */
void pkgDPkgPM::DoDpkgStatusFd(int statusfd)
{
- char *p, *q;
- int len;
-
- len=read(statusfd, &d->dpkgbuf[d->dpkgbuf_pos], sizeof(d->dpkgbuf)-d->dpkgbuf_pos);
- d->dpkgbuf_pos += len;
+ ssize_t const len = read(statusfd, &d->dpkgbuf[d->dpkgbuf_pos],
+ (sizeof(d->dpkgbuf)/sizeof(d->dpkgbuf[0])) - d->dpkgbuf_pos);
if(len <= 0)
return;
+ d->dpkgbuf_pos += (len / sizeof(d->dpkgbuf[0]));
- // process line by line if we have a buffer
- p = q = d->dpkgbuf;
- while((q=(char*)memchr(p, '\n', d->dpkgbuf+d->dpkgbuf_pos-p)) != NULL)
+ // process line by line from the buffer
+ char *p = d->dpkgbuf, *q = nullptr;
+ while((q=(char*)memchr(p, '\n', (d->dpkgbuf + d->dpkgbuf_pos) - p)) != nullptr)
{
- *q = 0;
+ *q = '\0';
ProcessDpkgStatusLine(p);
- p=q+1; // continue with next line
+ p = q + 1; // continue with next line
}
- // now move the unprocessed bits (after the final \n that is now a 0x0)
- // to the start and update d->dpkgbuf_pos
- p = (char*)memrchr(d->dpkgbuf, 0, d->dpkgbuf_pos);
- if(p == NULL)
+ // check if we stripped the buffer clean
+ if (p > (d->dpkgbuf + d->dpkgbuf_pos))
+ {
+ d->dpkgbuf_pos = 0;
return;
+ }
- // we are interessted in the first char *after* 0x0
- p++;
-
- // move the unprocessed tail to the start and update pos
- memmove(d->dpkgbuf, p, p-d->dpkgbuf);
- d->dpkgbuf_pos = d->dpkgbuf+d->dpkgbuf_pos-p;
+ // otherwise move the unprocessed tail to the start and update pos
+ memmove(d->dpkgbuf, p, (p - d->dpkgbuf));
+ d->dpkgbuf_pos = (d->dpkgbuf + d->dpkgbuf_pos) - p;
}
/*}}}*/
// DPkgPM::WriteHistoryTag /*{{{*/
// get current time
char timestr[200];
time_t const t = time(NULL);
- struct tm const * const tmp = localtime(&t);
+ struct tm tm_buf;
+ struct tm const * const tmp = localtime_r(&t, &tm_buf);
strftime(timestr, sizeof(timestr), "%F %T", tmp);
// open terminal log
}
if (_config->Exists("Commandline::AsString") == true)
WriteHistoryTag("Commandline", _config->Find("Commandline::AsString"));
+ std::string RequestingUser = AptHistoryRequestingUser();
+ if (RequestingUser != "")
+ WriteHistoryTag("Requested-By", RequestingUser);
WriteHistoryTag("Install", install);
WriteHistoryTag("Reinstall", reinstall);
WriteHistoryTag("Upgrade", upgrade);
WriteHistoryTag("Purge",purge);
fflush(d->history_out);
}
-
+
return true;
}
/*}}}*/
{
char timestr[200];
time_t t = time(NULL);
- struct tm *tmp = localtime(&t);
+ struct tm tm_buf;
+ struct tm *tmp = localtime_r(&t, &tm_buf);
strftime(timestr, sizeof(timestr), "%F %T", tmp);
if(d->term_out)
return true;
}
/*}}}*/
- /*}}}*/
-/*{{{*/
-// This implements a racy version of pselect for those architectures
-// that don't have a working implementation.
-// FIXME: Probably can be removed on Lenny+1
-static int racy_pselect(int nfds, fd_set *readfds, fd_set *writefds,
- fd_set *exceptfds, const struct timespec *timeout,
- const sigset_t *sigmask)
-{
- sigset_t origmask;
- struct timeval tv;
- int retval;
-
- tv.tv_sec = timeout->tv_sec;
- tv.tv_usec = timeout->tv_nsec/1000;
-
- sigprocmask(SIG_SETMASK, sigmask, &origmask);
- retval = select(nfds, readfds, writefds, exceptfds, &tv);
- sigprocmask(SIG_SETMASK, &origmask, 0);
- return retval;
-}
- /*}}}*/
// DPkgPM::BuildPackagesProgressMap /*{{{*/
void pkgDPkgPM::BuildPackagesProgressMap()
{
// map the dpkg states to the operations that are performed
// (this is sorted in the same way as Item::Ops)
- static const struct DpkgState DpkgStatesOpMap[][7] = {
+ static const std::array<std::array<DpkgState, 3>, 4> DpkgStatesOpMap = {{
// Install operation
- {
- {"half-installed", N_("Preparing %s")},
- {"unpacked", N_("Unpacking %s") },
- {NULL, NULL}
- },
+ {{
+ {"half-installed", N_("Preparing %s")},
+ {"unpacked", N_("Unpacking %s") },
+ {nullptr, nullptr}
+ }},
// Configure operation
- {
+ {{
{"unpacked",N_("Preparing to configure %s") },
{"half-configured", N_("Configuring %s") },
{ "installed", N_("Installed %s")},
- {NULL, NULL}
- },
+ }},
// Remove operation
- {
+ {{
{"half-configured", N_("Preparing for removal of %s")},
{"half-installed", N_("Removing %s")},
{"config-files", N_("Removed %s")},
- {NULL, NULL}
- },
+ }},
// Purge operation
- {
+ {{
{"config-files", N_("Preparing to completely remove %s")},
{"not-installed", N_("Completely removed %s")},
- {NULL, NULL}
- },
- };
+ {nullptr, nullptr}
+ }},
+ }};
+ static_assert(Item::Purge == 3, "Enum item has unexpected index for mapping array");
// init the PackageOps map, go over the list of packages that
// that will be [installed|configured|removed|purged] and add
// them to the PackageOps map (the dpkg states it goes through)
// and the PackageOpsTranslations (human readable strings)
- for (vector<Item>::const_iterator I = List.begin(); I != List.end(); ++I)
+ for (auto &&I : List)
{
- if((*I).Pkg.end() == true)
+ if(I.Pkg.end() == true)
continue;
- string const name = (*I).Pkg.FullName();
+ string const name = I.Pkg.FullName();
PackageOpsDone[name] = 0;
- for(int i=0; (DpkgStatesOpMap[(*I).Op][i]).state != NULL; ++i)
+ auto AddToPackageOps = std::back_inserter(PackageOps[name]);
+ if (I.Op == Item::Purge && I.Pkg->CurrentVer != 0)
{
- PackageOps[name].push_back(DpkgStatesOpMap[(*I).Op][i]);
- PackagesTotal++;
+ // purging a package which is installed first passes through remove states
+ auto const DpkgOps = DpkgStatesOpMap[Item::Remove];
+ std::copy(DpkgOps.begin(), DpkgOps.end(), AddToPackageOps);
+ PackagesTotal += DpkgOps.size();
}
+ auto const DpkgOps = DpkgStatesOpMap[I.Op];
+ std::copy_if(DpkgOps.begin(), DpkgOps.end(), AddToPackageOps, [&](DpkgState const &state) {
+ if (state.state == nullptr)
+ return false;
+ ++PackagesTotal;
+ return true;
+ });
}
+ /* 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;
}
/*}}}*/
-bool pkgDPkgPM::Go(int StatusFd)
+bool pkgDPkgPM::Go(int StatusFd) /*{{{*/
{
APT::Progress::PackageManager *progress = NULL;
if (StatusFd == -1)
progress = APT::Progress::PackageManagerProgressFactory();
else
progress = new APT::Progress::PackageManagerProgressFd(StatusFd);
-
+
return Go(progress);
}
-
-void pkgDPkgPM::StartPtyMagic()
+ /*}}}*/
+void pkgDPkgPM::StartPtyMagic() /*{{{*/
{
if (_config->FindB("Dpkg::Use-Pty", true) == false)
{
return;
}
+ if (isatty(STDIN_FILENO) == 0)
+ d->direct_stdin = true;
+
_error->PushToStack();
- // if tcgetattr for both stdin/stdout returns 0 (no error)
- // we do the pty magic
- if (tcgetattr(STDOUT_FILENO, &d->tt) == 0 &&
- tcgetattr(STDIN_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
{
- 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);
- close(d->master);
- d->master = -1;
- }
+#ifdef HAVE_PTS_NAME_R
+ char slave_name[64]; // 64 is used by bionic
+ if (ptsname_r(d->master, slave_name, sizeof(slave_name)) != 0)
+#else
+ char const * const slave_name = ptsname(d->master);
+ if (slave_name == NULL)
+#endif
+ _error->Errno("ptsname", "Getting name for slave of master fd %d failed!", d->master);
else
{
- char const * const slave_name = ptsname(d->master);
- if (slave_name == NULL)
- {
- _error->Errno("unlockpt", "Getting name for slave of master fd %d failed!", d->master);
- close(d->master);
- d->master = -1;
- }
- 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->slave = strdup(slave_name);
- if (d->slave == NULL)
+ 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)
{
- _error->Errno("strdup", "Copying name %s for slave of master fd %d failed!", slave_name, d->master);
- close(d->master);
- d->master = -1;
+ 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);
}
- 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);
- struct termios raw_tt;
raw_tt = d->tt;
cfmakeraw(&raw_tt);
raw_tt.c_lflag &= ~ECHO;
sigaddset(&d->sigmask, SIGTTOU);
sigprocmask(SIG_BLOCK,&d->sigmask, &d->original_sigmask);
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw_tt) == -1)
- _error->Errno("tcsetattr", "Setting in Start via TCSAFLUSH for stdout failed!");
+ _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);
}
}
}
- else
- {
- // 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.
- if (isatty(STDOUT_FILENO) == 1 || errno == EBADF)
- _error->Errno("tcgetattr", _("Can not write log (%s)"), _("Is stdout a terminal?"));
- }
if (_error->PendingError() == true)
{
close(d->master);
d->master = -1;
}
- _error->DumpErrors(std::cerr);
+ if (d->slave != NULL)
+ {
+ free(d->slave);
+ d->slave = NULL;
+ }
+ _error->DumpErrors(std::cerr, GlobalError::DEBUG, false);
}
_error->RevertToStack();
}
-void pkgDPkgPM::SetupSlavePtyMagic()
+ /*}}}*/
+void pkgDPkgPM::SetupSlavePtyMagic() /*{{{*/
{
- if(d->master == -1)
+ 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);
+ 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?"));
-
- if (ioctl(slaveFd, TIOCSCTTY, 0) < 0)
+ else if (ioctl(slaveFd, TIOCSCTTY, 0) < 0)
_error->FatalE("ioctl", "Setting TIOCSCTTY for slave fd %d failed!", slaveFd);
else
{
- for (unsigned short i = 0; i < 3; ++i)
+ 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 (tcsetattr(0, TCSANOW, &d->tt) < 0)
+ 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()
+ /*}}}*/
+void pkgDPkgPM::StopPtyMagic() /*{{{*/
{
if (d->slave != NULL)
free(d->slave);
d->slave = NULL;
- if(d->master >= 0)
+ if (d->protect_slave_from_dying != -1)
{
- if (tcsetattr(0, TCSAFLUSH, &d->tt) == -1)
+ close(d->protect_slave_from_dying);
+ d->protect_slave_from_dying = -1;
+ }
+ if(d->master >= 0)
+ {
+ 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;
// DPkgPM::Go - Run the sequence /*{{{*/
// ---------------------------------------------------------------------
-/* This globs the operations and calls dpkg
+/* This globs the operations and calls dpkg
*
* If it is called with a progress object apt will report the install
* progress to this object. It maps the dpkg states a package goes
d->progress = progress;
// Generate the base argument list for dpkg
- unsigned long StartSize = 0;
- std::vector<const char *> Args;
- std::string DpkgExecutable = getDpkgExecutable();
- Args.push_back(DpkgExecutable.c_str());
- StartSize += DpkgExecutable.length();
-
- // 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());
- StartSize += Opts->Value.length();
- }
- }
-
+ std::vector<std::string> const sArgs = debSystem::GetDpkgBaseCommand();
+ std::vector<const char *> Args(sArgs.size(), NULL);
+ std::transform(sArgs.begin(), sArgs.end(), Args.begin(),
+ [](std::string const &s) { return s.c_str(); });
+ unsigned long long const StartSize = std::accumulate(sArgs.begin(), sArgs.end(), 0llu,
+ [](unsigned long long const i, std::string const &s) { return i + s.length(); });
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)
- {
- 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(Args[0], (char**) &Args[0]);
- _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
- _exit(2);
- }
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);
+ // 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)
if (RunScriptsWithPkgs("DPkg::Pre-Install-Pkgs") == false)
return false;
+ auto const noopDPkgInvocation = _config->FindB("Debug::pkgDPkgPM",false);
+ // store auto-bits as they are supposed to be after dpkg is run
+ if (noopDPkgInvocation == false)
+ Cache.writeStateFile(NULL);
+
+ decltype(List)::const_iterator::difference_type const notconfidx =
+ _config->FindB("Dpkg::ExplicitLastConfigure", false) ? std::numeric_limits<decltype(notconfidx)>::max() :
+ std::distance(List.cbegin(), std::find_if_not(List.crbegin(), List.crend(), [](Item const &i) { return i.Op == Item::Configure; }).base());
+
// 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)
+ bool const ConfigurePending = _config->FindB("DPkg::ConfigurePending", true);
+ if (ConfigurePending)
List.push_back(Item(Item::ConfigurePending, PkgIterator()));
// for the progress
BuildPackagesProgressMap();
+ if (notconfidx != std::numeric_limits<decltype(notconfidx)>::max())
+ {
+ if (ConfigurePending)
+ List.erase(std::next(List.begin(), notconfidx), std::prev(List.end()));
+ else
+ List.erase(std::next(List.begin(), notconfidx), List.end());
+ }
+
d->stdin_is_dev_null = false;
// create log
OpenLog();
- 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;
- }
+ bool dpkgMultiArch = debSystem::SupportsMultiArch();
// start pty magic before the loop
StartPtyMagic();
- // Tell the progress that its starting and fork dpkg
+ // Tell the progress that its starting and fork dpkg
d->progress->Start(d->master);
// this loop is runs once per dpkg operation
for (; J != List.end() && J->Op == I->Op; ++J)
/* nothing */;
- // keep track of allocated strings for multiarch package names
- std::vector<char *> Packages;
+ auto const size = (J - I) + 10;
// start with the baseset of arguments
- unsigned long Size = StartSize;
+ auto Size = StartSize;
Args.erase(Args.begin() + BaseArgs, Args.end());
-
- // Now check if we are within the MaxArgs limit
- //
- // this code below is problematic, because it may happen that
- // the argument list is split in a way that A depends on B
- // and they are in the same "--configure A B" run
- // - with the split they may now be configured in different
- // runs, using Immediate-Configure-All can help prevent this.
- if (J - I > (signed)MaxArgs)
- {
- J = I + MaxArgs;
- unsigned long const size = MaxArgs + 10;
- Args.reserve(size);
- Packages.reserve(size);
- }
- else
- {
- unsigned long const size = (J - I) + 10;
- Args.reserve(size);
- Packages.reserve(size);
- }
+ Args.reserve(size);
+ // keep track of allocated strings for multiarch package names
+ std::vector<char *> Packages(size, nullptr);
int fd[2];
if (pipe(fd) != 0)
ADDARGC("--force-remove-essential");
ADDARGC("--remove");
break;
-
+
case Item::Purge:
ADDARGC("--force-depends");
ADDARGC("--force-remove-essential");
ADDARGC("--purge");
break;
-
+
case Item::Configure:
ADDARGC("--configure");
break;
#undef ADDARG
J = I;
-
- if (_config->FindB("Debug::pkgDPkgPM",false) == true)
+
+ if (noopDPkgInvocation == true)
{
for (std::vector<const char *>::const_iterator a = Args.begin();
a != Args.end(); ++a)
clog << *a << ' ';
clog << endl;
+ for (std::vector<char *>::const_iterator p = Packages.begin();
+ p != Packages.end(); ++p)
+ free(*p);
+ Packages.clear();
+ close(fd[0]);
+ close(fd[1]);
continue;
}
Args.push_back(NULL);
clog << flush;
cerr << flush;
- /* Mask off sig int/quit. We do this because dpkg also does when
+ /* Mask off sig int/quit. We do this because dpkg also does when
it forks scripts. What happens is that when you hit ctrl-c it sends
- it to all processes in the group. Since dpkg ignores the signal
+ it to all processes in the group. Since dpkg ignores the signal
it doesn't die but we do! So we must also ignore it */
sighandler_t old_SIGQUIT = signal(SIGQUIT,SIG_IGN);
sighandler_t old_SIGINT = signal(SIGINT,SigINT);
-
+
// Check here for any SIGINT
- if (pkgPackageManager::SigINTStop && (Op == Item::Remove || Op == Item::Purge || Op == Item::Install))
+ if (pkgPackageManager::SigINTStop && (Op == Item::Remove || Op == Item::Purge || Op == Item::Install))
break;
-
-
+
// ignore SIGHUP as well (debian #463030)
sighandler_t old_SIGHUP = signal(SIGHUP,SIG_IGN);
SetupSlavePtyMagic();
close(fd[0]); // close the read end of the pipe
- dpkgChrootDirectory();
+ debSystem::DpkgChrootDirectory();
if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
_exit(100);
int dummy = 0;
if ((Flags = fcntl(STDIN_FILENO,F_GETFL,dummy)) < 0)
_exit(100);
-
+
// Discard everything in stdin before forking dpkg
if (fcntl(STDIN_FILENO,F_SETFL,Flags | O_NONBLOCK) < 0)
_exit(100);
-
+
while (read(STDIN_FILENO,&dummy,1) == 1);
-
+
if (fcntl(STDIN_FILENO,F_SETFL,Flags & (~(long)O_NONBLOCK)) < 0)
_exit(100);
}
- /* No Job Control Stop Env is a magic dpkg var that prevents it
- from using sigstop */
- putenv((char *)"DPKG_NO_TSTP=yes");
+ // if color support isn't enabled/disabled explicitly tell
+ // dpkg to use the same state apt is using for its color support
+ if (_config->FindB("APT::Color", false) == true)
+ setenv("DPKG_COLORS", "always", 0);
+ else
+ setenv("DPKG_COLORS", "never", 0);
+
execvp(Args[0], (char**) &Args[0]);
cerr << "Could not exec dpkg!" << endl;
_exit(100);
- }
-
- // apply ionice
- if (_config->FindB("DPkg::UseIoNice", false) == true)
- ionice(Child);
-
- // Wait for dpkg
- int Status = 0;
+ }
// we read from dpkg here
int const _dpkgin = fd[0];
close(fd[1]); // close the write end of the pipe
+ // apply ionice
+ if (_config->FindB("DPkg::UseIoNice", false) == true)
+ ionice(Child);
+
// setups fds
sigemptyset(&d->sigmask);
sigprocmask(SIG_BLOCK,&d->sigmask,&d->original_sigmask);
Packages.clear();
// the result of the waitpid call
+ int Status = 0;
int res;
- int select_ret;
+ bool waitpid_failure = false;
while ((res=waitpid(Child,&Status, WNOHANG)) != Child) {
if(res < 0) {
- // FIXME: move this to a function or something, looks ugly here
// error handling, waitpid returned -1
if (errno == EINTR)
continue;
- RunScripts("DPkg::Post-Invoke");
-
- // Restore sig int/quit
- signal(SIGQUIT,old_SIGQUIT);
- signal(SIGINT,old_SIGINT);
-
- signal(SIGHUP,old_SIGHUP);
- return _error->Errno("waitpid","Couldn't wait for subprocess");
+ waitpid_failure = true;
+ break;
}
// 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);
tv.tv_sec = 0;
tv.tv_nsec = d->progress->GetPulseInterval();
- select_ret = pselect(max(d->master, _dpkgin)+1, &rfds, NULL, NULL,
+ auto const select_ret = pselect(max(d->master, _dpkgin)+1, &rfds, NULL, NULL,
&tv, &d->original_sigmask);
- if (select_ret < 0 && (errno == EINVAL || errno == ENOSYS))
- select_ret = racy_pselect(max(d->master, _dpkgin)+1, &rfds, NULL,
- NULL, &tv, &d->original_sigmask);
d->progress->Pulse();
- if (select_ret == 0)
- continue;
- else if (select_ret < 0 && errno == EINTR)
- continue;
- else if (select_ret < 0)
- {
- perror("select() returned error");
- continue;
- }
-
+ if (select_ret == 0)
+ continue;
+ else if (select_ret < 0 && errno == EINTR)
+ continue;
+ else if (select_ret < 0)
+ {
+ perror("select() returned error");
+ continue;
+ }
+
if(d->master >= 0 && FD_ISSET(d->master, &rfds))
DoTerminalPty(d->master);
if(d->master >= 0 && FD_ISSET(0, &rfds))
// Restore sig int/quit
signal(SIGQUIT,old_SIGQUIT);
signal(SIGINT,old_SIGINT);
-
signal(SIGHUP,old_SIGHUP);
+
+ if (waitpid_failure == true)
+ {
+ strprintf(d->dpkg_error, "Sub-process %s couldn't be waited for.",Args[0]);
+ _error->Error("%s", d->dpkg_error.c_str());
+ break;
+ }
+
// Check for an error code.
if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
{
- // if it was set to "keep-dpkg-runing" then we won't return
+ // if it was set to "keep-dpkg-running" then we won't return
// here but keep the loop going and just report it as a error
// for later
bool const stopOnError = _config->FindB("Dpkg::StopOnError",true);
}
}
// dpkg is done at this point
- d->progress->Stop();
StopPtyMagic();
CloseLog();
if (pkgPackageManager::SigINTStop)
_error->Warning(_("Operation was interrupted before it could finish"));
- if (RunScripts("DPkg::Post-Invoke") == false)
- return false;
-
- if (_config->FindB("Debug::pkgDPkgPM",false) == false)
+ if (noopDPkgInvocation == false)
{
std::string const oldpkgcache = _config->FindFile("Dir::cache::pkgcache");
if (oldpkgcache.empty() == false && RealFileExists(oldpkgcache) == true &&
- unlink(oldpkgcache.c_str()) == 0)
+ RemoveFile("pkgDPkgPM::Go", oldpkgcache))
{
std::string const srcpkgcache = _config->FindFile("Dir::cache::srcpkgcache");
if (srcpkgcache.empty() == false && RealFileExists(srcpkgcache) == true)
}
}
- Cache.writeStateFile(NULL);
+ // disappearing packages can forward their auto-bit
+ if (disappearedPkgs.empty() == false)
+ Cache.writeStateFile(NULL);
+
+ d->progress->Stop();
+
+ if (RunScripts("DPkg::Post-Invoke") == false)
+ return false;
+
return d->dpkg_error.empty();
}
// pkgDpkgPM::Reset - Dump the contents of the command list /*{{{*/
// ---------------------------------------------------------------------
/* */
-void pkgDPkgPM::Reset()
+void pkgDPkgPM::Reset()
{
List.erase(List.begin(),List.end());
}
// pkgDpkgPM::WriteApportReport - write out error report pkg failure /*{{{*/
// ---------------------------------------------------------------------
/* */
-void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
+void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
{
// If apport doesn't exist or isn't installed do nothing
// This e.g. prevents messages in 'universes' without apport
if (apportPkg.end() == true || apportPkg->CurrentVer == 0)
return;
- string pkgname, reportfile, srcpkgname, pkgver, arch;
+ string pkgname, reportfile, pkgver, arch;
string::size_type pos;
FILE *report;
return;
}
- // check if its not a follow up error
+ // check if its not a follow up error
const char *needle = dgettext("dpkg", "dependency problems - leaving unconfigured");
if(strstr(errormsg, needle) != NULL) {
std::clog << _("No apport report written because the error message indicates its a followup error from a previous failure.") << std::endl;
return;
}
- // do not report disk-full failures
+ // do not report disk-full failures
if(strstr(errormsg, strerror(ENOSPC)) != NULL) {
std::clog << _("No apport report written because the error message indicates a disk full error") << std::endl;
return;
}
- // do not report out-of-memory failures
+ // do not report out-of-memory failures
if(strstr(errormsg, strerror(ENOMEM)) != NULL ||
strstr(errormsg, "failed to allocate memory") != NULL) {
std::clog << _("No apport report written because the error message indicates a out of memory error") << std::endl;
// to kill the "s" manually
if (list[1].size() > 1) {
list[1].erase(0, 1);
- if(strstr(errormsg, list[0].c_str()) &&
+ if(strstr(errormsg, list[0].c_str()) &&
strstr(errormsg, list[1].c_str())) {
std::clog << _("No apport report written because the error message indicates a dpkg I/O error") << std::endl;
return;
if(pos != string::npos)
pkgname = pkgname.substr(0, pos);
- // find the package versin and source package name
+ // find the package version and source package name
pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname);
if (Pkg.end() == true)
return;
- pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);
+ pkgCache::VerIterator Ver = Cache.GetCandidateVersion(Pkg);
if (Ver.end() == true)
return;
pkgver = Ver.VerStr() == NULL ? "unknown" : Ver.VerStr();
fprintf(report, "ProblemType: Package\n");
fprintf(report, "Architecture: %s\n", arch.c_str());
time_t now = time(NULL);
- fprintf(report, "Date: %s" , ctime(&now));
+ char ctime_buf[26]; // need at least 26 bytes according to ctime(3)
+ fprintf(report, "Date: %s" , ctime_r(&now, ctime_buf));
fprintf(report, "Package: %s %s\n", pkgname.c_str(), pkgver.c_str());
fprintf(report, "SourcePackage: %s\n", Ver.SourcePkgName());
fprintf(report, "ErrorMessage:\n %s\n", errormsg);
}
}
- // 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",
+ };
fprintf(report, "AptOrdering:\n");
for (vector<Item>::iterator I = List.begin(); I != List.end(); ++I)
if ((*I).Pkg != NULL)
projects / apt.git / blobdiff