X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/a0e07f3ec885c12c733c12805391646c202f3f31..f0b503b394e6d1e9263e905560ec56a01d847563:/apt-pkg/deb/dpkgpm.cc diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc index 2c34465c0..7c0ed5639 100644 --- a/apt-pkg/deb/dpkgpm.cc +++ b/apt-pkg/deb/dpkgpm.cc @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -904,6 +905,28 @@ bool pkgDPkgPM::Go(int OutStatusFd) // create log OpenLog(); + // Generate the base argument list for dpkg + std::vector Args; + unsigned long StartSize = 0; + string const Tmp = _config->Find("Dir::Bin::dpkg","dpkg"); + Args.push_back(Tmp.c_str()); + StartSize += Tmp.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(); + } + } + size_t const BaseArgs = Args.size(); + // this loop is runs once per operation for (vector::const_iterator I = List.begin(); I != List.end();) { @@ -925,11 +948,12 @@ bool pkgDPkgPM::Go(int OutStatusFd) for (; J != List.end() && J->Op == I->Op; ++J) /* nothing */; - // Generate the argument list - const char *Args[MaxArgs + 50]; // keep track of allocated strings for multiarch package names - char *Packages[MaxArgs + 50]; - unsigned int pkgcount = 0; + std::vector Packages; + + // start with the baseset of arguments + unsigned long Size = StartSize; + Args.erase(Args.begin() + BaseArgs, Args.end()); // Now check if we are within the MaxArgs limit // @@ -937,93 +961,70 @@ bool pkgDPkgPM::Go(int OutStatusFd) // 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 + // runs, using Immediate-Configure-All can help prevent this. if (J - I > (signed)MaxArgs) + { J = I + MaxArgs; - - unsigned int n = 0; - unsigned long Size = 0; - string const Tmp = _config->Find("Dir::Bin::dpkg","dpkg"); - Args[n++] = Tmp.c_str(); - Size += strlen(Args[n-1]); - - // Stick in any custom dpkg options - Configuration::Item const *Opts = _config->Tree("DPkg::Options"); - if (Opts != 0) + Args.reserve(MaxArgs + 10); + } + else { - Opts = Opts->Child; - for (; Opts != 0; Opts = Opts->Next) - { - if (Opts->Value.empty() == true) - continue; - Args[n++] = Opts->Value.c_str(); - Size += Opts->Value.length(); - } + Args.reserve((J - I) + 10); } + - char status_fd_buf[20]; int fd[2]; pipe(fd); - - Args[n++] = "--status-fd"; - Size += strlen(Args[n-1]); + +#define ADDARG(X) Args.push_back(X); Size += strlen(X) +#define ADDARGC(X) Args.push_back(X); Size += sizeof(X) - 1 + + ADDARGC("--status-fd"); + char status_fd_buf[20]; snprintf(status_fd_buf,sizeof(status_fd_buf),"%i", fd[1]); - Args[n++] = status_fd_buf; - Size += strlen(Args[n-1]); + ADDARG(status_fd_buf); + unsigned long const Op = I->Op; switch (I->Op) { case Item::Remove: - Args[n++] = "--force-depends"; - Size += strlen(Args[n-1]); - Args[n++] = "--force-remove-essential"; - Size += strlen(Args[n-1]); - Args[n++] = "--remove"; - Size += strlen(Args[n-1]); + ADDARGC("--force-depends"); + ADDARGC("--force-remove-essential"); + ADDARGC("--remove"); break; case Item::Purge: - Args[n++] = "--force-depends"; - Size += strlen(Args[n-1]); - Args[n++] = "--force-remove-essential"; - Size += strlen(Args[n-1]); - Args[n++] = "--purge"; - Size += strlen(Args[n-1]); + ADDARGC("--force-depends"); + ADDARGC("--force-remove-essential"); + ADDARGC("--purge"); break; case Item::Configure: - Args[n++] = "--configure"; - Size += strlen(Args[n-1]); + ADDARGC("--configure"); break; case Item::ConfigurePending: - Args[n++] = "--configure"; - Size += strlen(Args[n-1]); - Args[n++] = "--pending"; - Size += strlen(Args[n-1]); + ADDARGC("--configure"); + ADDARGC("--pending"); break; case Item::TriggersPending: - Args[n++] = "--triggers-only"; - Size += strlen(Args[n-1]); - Args[n++] = "--pending"; - Size += strlen(Args[n-1]); + ADDARGC("--triggers-only"); + ADDARGC("--pending"); break; case Item::Install: - Args[n++] = "--unpack"; - Size += strlen(Args[n-1]); - Args[n++] = "--auto-deconfigure"; - Size += strlen(Args[n-1]); + ADDARGC("--unpack"); + ADDARGC("--auto-deconfigure"); break; } if (NoTriggers == true && I->Op != Item::TriggersPending && I->Op != Item::ConfigurePending) { - Args[n++] = "--no-triggers"; - Size += strlen(Args[n-1]); + ADDARGC("--no-triggers"); } +#undef ADDARGC // Write in the file or package names if (I->Op == Item::Install) @@ -1032,10 +1033,10 @@ bool pkgDPkgPM::Go(int OutStatusFd) { if (I->File[0] != '/') return _error->Error("Internal Error, Pathname to install is not absolute '%s'",I->File.c_str()); - Args[n++] = I->File.c_str(); - Size += strlen(Args[n-1]); + Args.push_back(I->File.c_str()); + Size += I->File.length(); } - } + } else { string const nativeArch = _config->Find("APT::Architecture"); @@ -1047,29 +1048,35 @@ bool pkgDPkgPM::Go(int OutStatusFd) if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.Name()) != disappearedPkgs.end()) continue; if (I->Pkg.Arch() == nativeArch || !strcmp(I->Pkg.Arch(), "all")) - Args[n++] = I->Pkg.Name(); + { + char const * const name = I->Pkg.Name(); + ADDARG(name); + } else { - Packages[pkgcount] = strdup(I->Pkg.FullName(false).c_str()); - Args[n++] = Packages[pkgcount++]; + char * const fullname = strdup(I->Pkg.FullName(false).c_str()); + Packages.push_back(fullname); + ADDARG(fullname); } - Size += strlen(Args[n-1]); } // skip configure action if all sheduled packages disappeared if (oldSize == Size) continue; } - Args[n] = 0; +#undef ADDARG + J = I; if (_config->FindB("Debug::pkgDPkgPM",false) == true) { - for (unsigned int k = 0; k != n; k++) - clog << Args[k] << ' '; + for (std::vector::const_iterator a = Args.begin(); + a != Args.end(); ++a) + clog << *a << ' '; clog << endl; continue; } - + Args.push_back(NULL); + cout << flush; clog << flush; cerr << flush; @@ -1079,8 +1086,13 @@ bool pkgDPkgPM::Go(int OutStatusFd) 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,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)) + break; + + // ignore SIGHUP as well (debian #463030) sighandler_t old_SIGHUP = signal(SIGHUP,SIG_IGN); @@ -1118,7 +1130,6 @@ bool pkgDPkgPM::Go(int OutStatusFd) sigprocmask(SIG_SETMASK, &original_sigmask, 0); } } - // Fork dpkg pid_t Child; _config->Set("APT::Keep-Fds::",fd[1]); @@ -1179,7 +1190,7 @@ bool pkgDPkgPM::Go(int OutStatusFd) /* No Job Control Stop Env is a magic dpkg var that prevents it from using sigstop */ putenv((char *)"DPKG_NO_TSTP=yes"); - execvp(Args[0],(char **)Args); + execvp(Args[0], (char**) &Args[0]); cerr << "Could not exec dpkg!" << endl; _exit(100); } @@ -1205,10 +1216,11 @@ bool pkgDPkgPM::Go(int OutStatusFd) sigemptyset(&sigmask); sigprocmask(SIG_BLOCK,&sigmask,&original_sigmask); - /* clean up the temporary allocation for multiarch package names in - the parent, so we don't leak memory when we return. */ - for (unsigned int i = 0; i < pkgcount; i++) - free(Packages[i]); + /* free vectors (and therefore memory) as we don't need the included data anymore */ + for (std::vector::const_iterator p = Packages.begin(); + p != Packages.end(); ++p) + free(*p); + Packages.clear(); // the result of the waitpid call int res; @@ -1224,6 +1236,7 @@ bool pkgDPkgPM::Go(int OutStatusFd) // 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"); } @@ -1264,6 +1277,7 @@ bool pkgDPkgPM::Go(int OutStatusFd) // Restore sig int/quit signal(SIGQUIT,old_SIGQUIT); signal(SIGINT,old_SIGINT); + signal(SIGHUP,old_SIGHUP); if(master >= 0) @@ -1301,6 +1315,9 @@ bool pkgDPkgPM::Go(int OutStatusFd) } } CloseLog(); + + if (pkgPackageManager::SigINTStop) + _error->Warning(_("Operation was interrupted before it could finish")); if (RunScripts("DPkg::Post-Invoke") == false) return false; @@ -1325,6 +1342,11 @@ bool pkgDPkgPM::Go(int OutStatusFd) Cache.writeStateFile(NULL); return true; } + +void SigINT(int sig) { + if (_config->FindB("APT::Immediate-Configure-All",false)) + pkgPackageManager::SigINTStop = true; +} /*}}}*/ // pkgDpkgPM::Reset - Dump the contents of the command list /*{{{*/ // ---------------------------------------------------------------------