X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/04b38410e88705c26f191ca654cb89ab91c866ad..b09e09c756861ab167647ec61ac59b85c2928be6:/apt-pkg/deb/dpkgpm.cc diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc index de84ba96a..b11ecf132 100644 --- a/apt-pkg/deb/dpkgpm.cc +++ b/apt-pkg/deb/dpkgpm.cc @@ -14,6 +14,8 @@ #include #include #include +#include +#include #include #include @@ -44,8 +46,8 @@ using namespace std; // --------------------------------------------------------------------- /* */ pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) - : pkgPackageManager(Cache), dpkgbuf_pos(0), - PackagesTotal(0), PackagesDone(0), term_out(NULL) + : pkgPackageManager(Cache), dpkgbuf_pos(0), + term_out(NULL), PackagesDone(0), PackagesTotal(0) { } /*}}}*/ @@ -95,68 +97,6 @@ bool pkgDPkgPM::Remove(PkgIterator Pkg,bool Purge) return true; } /*}}}*/ -// DPkgPM::RunScripts - Run a set of scripts /*{{{*/ -// --------------------------------------------------------------------- -/* This looks for a list of script sto run from the configuration file, - each one is run with system from a forked child. */ -bool pkgDPkgPM::RunScripts(const char *Cnf) -{ - Configuration::Item const *Opts = _config->Tree(Cnf); - if (Opts == 0 || Opts->Child == 0) - return true; - Opts = Opts->Child; - - // Fork for running the system calls - pid_t Child = ExecFork(); - - // This is the child - if (Child == 0) - { - if (chdir("/tmp/") != 0) - _exit(100); - - unsigned int Count = 1; - for (; Opts != 0; Opts = Opts->Next, Count++) - { - if (Opts->Value.empty() == true) - continue; - - if (system(Opts->Value.c_str()) != 0) - _exit(100+Count); - } - _exit(0); - } - - // Wait for the child - int Status = 0; - while (waitpid(Child,&Status,0) != Child) - { - if (errno == EINTR) - continue; - return _error->Errno("waitpid","Couldn't wait for subprocess"); - } - - // Restore sig int/quit - signal(SIGQUIT,SIG_DFL); - signal(SIGINT,SIG_DFL); - - // Check for an error code. - if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0) - { - unsigned int Count = WEXITSTATUS(Status); - if (Count > 100) - { - Count -= 100; - for (; Opts != 0 && Count != 1; Opts = Opts->Next, Count--); - _error->Error("Problem executing scripts %s '%s'",Cnf,Opts->Value.c_str()); - } - - return _error->Error("Sub-process returned an error code"); - } - - return true; -} - /*}}}*/ // DPkgPM::SendV2Pkgs - Send version 2 package info /*{{{*/ // --------------------------------------------------------------------- /* This is part of the helper script communication interface, it sends @@ -334,7 +274,6 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf) return true; } - /*}}}*/ // DPkgPM::DoStdin - Read stdin and pass to slave pty /*{{{*/ // --------------------------------------------------------------------- @@ -342,9 +281,12 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf) */ void pkgDPkgPM::DoStdin(int master) { - char input_buf[256] = {0,}; - int len = read(0, input_buf, sizeof(input_buf)); - write(master, input_buf, len); + unsigned char input_buf[256] = {0,}; + ssize_t len = read(0, input_buf, sizeof(input_buf)); + if (len) + write(master, input_buf, len); + else + stdin_is_dev_null = true; } /*}}}*/ // DPkgPM::DoTerminalPty - Read the terminal pty and write log /*{{{*/ @@ -354,10 +296,18 @@ void pkgDPkgPM::DoStdin(int master) */ void pkgDPkgPM::DoTerminalPty(int master) { - char term_buf[1024] = {0,}; + unsigned char term_buf[1024] = {0,0, }; - int len=read(master, term_buf, sizeof(term_buf)); - if(len <= 0) + ssize_t len=read(master, term_buf, sizeof(term_buf)); + if(len == -1 && errno == EIO) + { + // this happens when the child is about to exit, we + // give it time to actually exit, otherwise we run + // into a race + usleep(500000); + return; + } + if(len <= 0) return; write(1, term_buf, len); if(term_out) @@ -392,14 +342,14 @@ void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line) // statusfd or by rewriting the code here to deal with // it. for now we just ignore it and not crash TokSplitString(':', line, list, sizeof(list)/sizeof(list[0])); - char *pkg = list[1]; - char *action = _strstrip(list[2]); - if( pkg == NULL || action == NULL) + if( list[0] == NULL || list[1] == NULL || list[2] == NULL) { if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true) std::clog << "ignoring line: not enough ':'" << std::endl; return; } + char *pkg = list[1]; + char *action = _strstrip(list[2]); if(strncmp(action,"error",strlen("error")) == 0) { @@ -497,6 +447,67 @@ void pkgDPkgPM::DoDpkgStatusFd(int statusfd, int OutStatusFd) } /*}}}*/ +bool pkgDPkgPM::OpenLog() +{ + string logdir = _config->FindDir("Dir::Log"); + if(not FileExists(logdir)) + return _error->Error(_("Directory '%s' missing"), logdir.c_str()); + string logfile_name = flCombine(logdir, + _config->Find("Dir::Log::Terminal")); + if (!logfile_name.empty()) + { + term_out = fopen(logfile_name.c_str(),"a"); + chmod(logfile_name.c_str(), 0600); + // output current time + char outstr[200]; + time_t t = time(NULL); + struct tm *tmp = localtime(&t); + strftime(outstr, sizeof(outstr), "%F %T", tmp); + fprintf(term_out, "\nLog started: "); + fprintf(term_out, outstr); + fprintf(term_out, "\n"); + } + return true; +} + +bool pkgDPkgPM::CloseLog() +{ + if(term_out) + { + char outstr[200]; + time_t t = time(NULL); + struct tm *tmp = localtime(&t); + strftime(outstr, sizeof(outstr), "%F %T", tmp); + fprintf(term_out, "Log ended: "); + fprintf(term_out, outstr); + fprintf(term_out, "\n"); + fclose(term_out); + } + term_out = NULL; + 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::Go - Run the sequence /*{{{*/ // --------------------------------------------------------------------- @@ -520,7 +531,7 @@ bool pkgDPkgPM::Go(int OutStatusFd) // 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[][5] = { + static const struct DpkgState DpkgStatesOpMap[][7] = { // Install operation { {"half-installed", N_("Preparing %s")}, @@ -531,12 +542,20 @@ bool pkgDPkgPM::Go(int OutStatusFd) { {"unpacked",N_("Preparing to configure %s") }, {"half-configured", N_("Configuring %s") }, +#if 0 + {"triggers-awaited", N_("Processing triggers for %s") }, + {"triggers-pending", N_("Processing triggers for %s") }, +#endif { "installed", N_("Installed %s")}, {NULL, NULL} }, // Remove operation { {"half-configured", N_("Preparing for removal of %s")}, +#if 0 + {"triggers-awaited", N_("Preparing for removal of %s")}, + {"triggers-pending", N_("Preparing for removal of %s")}, +#endif {"half-installed", N_("Removing %s")}, {"config-files", N_("Removed %s")}, {NULL, NULL} @@ -564,25 +583,10 @@ bool pkgDPkgPM::Go(int OutStatusFd) } } + stdin_is_dev_null = false; + // create log - string logdir = _config->FindDir("Dir::Log"); - if(not FileExists(logdir)) - return _error->Error(_("Directory '%s' missing"), logdir.c_str()); - string logfile_name = flCombine(logdir, - _config->Find("Dir::Log::Terminal")); - if (!logfile_name.empty()) - { - term_out = fopen(logfile_name.c_str(),"a"); - chmod(logfile_name.c_str(), 0600); - // output current time - char outstr[200]; - time_t t = time(NULL); - struct tm *tmp = localtime(&t); - strftime(outstr, sizeof(outstr), "%F %T", tmp); - fprintf(term_out, "\nLog started: "); - fprintf(term_out, outstr); - fprintf(term_out, "\n"); - } + OpenLog(); // this loop is runs once per operation for (vector::iterator I = List.begin(); I != List.end();) @@ -700,24 +704,30 @@ bool pkgDPkgPM::Go(int OutStatusFd) sighandler_t old_SIGINT = signal(SIGINT,SIG_IGN); struct termios tt; + struct termios tt_out; struct winsize win; int master; int slave; // FIXME: setup sensible signal handling (*ick*) tcgetattr(0, &tt); + tcgetattr(1, &tt_out); ioctl(0, TIOCGWINSZ, (char *)&win); - if (openpty(&master, &slave, NULL, &tt, &win) < 0) + if (openpty(&master, &slave, NULL, &tt_out, &win) < 0) { - fprintf(stderr, _("openpty failed\n")); + const char *s = _("Can not write log, openpty() " + "failed (/dev/pts not mounted?)\n"); + fprintf(stderr, "%s",s); + fprintf(term_out, "%s",s); + master = slave = -1; + } else { + struct termios rtt; + rtt = tt; + cfmakeraw(&rtt); + rtt.c_lflag &= ~ECHO; + tcsetattr(0, TCSAFLUSH, &rtt); } - struct termios rtt; - rtt = tt; - cfmakeraw(&rtt); - rtt.c_lflag &= ~ECHO; - tcsetattr(0, TCSAFLUSH, &rtt); - // Fork dpkg pid_t Child; _config->Set("APT::Keep-Fds::",fd[1]); @@ -726,13 +736,16 @@ bool pkgDPkgPM::Go(int OutStatusFd) // This is the child if (Child == 0) { - setsid(); - ioctl(slave, TIOCSCTTY, 0); - close(master); - dup2(slave, 0); - dup2(slave, 1); - dup2(slave, 2); - close(slave); + if(slave >= 0 && master >= 0) + { + setsid(); + ioctl(slave, TIOCSCTTY, 0); + close(master); + dup2(slave, 0); + dup2(slave, 1); + dup2(slave, 2); + close(slave); + } close(fd[0]); // close the read end of the pipe if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0) @@ -757,7 +770,7 @@ bool pkgDPkgPM::Go(int OutStatusFd) /* No Job Control Stop Env is a magic dpkg var that prevents it from using sigstop */ - putenv("DPKG_NO_TSTP=yes"); + putenv((char *)"DPKG_NO_TSTP=yes"); execvp(Args[0],(char **)Args); cerr << "Could not exec dpkg!" << endl; _exit(100); @@ -775,11 +788,17 @@ bool pkgDPkgPM::Go(int OutStatusFd) // the result of the waitpid call int res; - close(slave); + if(slave > 0) + close(slave); // setups fds fd_set rfds; - struct timeval tv; + struct timespec tv; + sigset_t sigmask; + sigset_t original_sigmask; + sigemptyset(&sigmask); + sigprocmask(SIG_BLOCK,&sigmask,&original_sigmask); + int select_ret; while ((res=waitpid(Child,&Status, WNOHANG)) != Child) { if(res < 0) { @@ -794,23 +813,33 @@ bool pkgDPkgPM::Go(int OutStatusFd) signal(SIGINT,old_SIGINT); return _error->Errno("waitpid","Couldn't wait for subprocess"); } - // wait for input or output here FD_ZERO(&rfds); - FD_SET(0, &rfds); + if (!stdin_is_dev_null) + FD_SET(0, &rfds); FD_SET(_dpkgin, &rfds); - FD_SET(master, &rfds); + if(master >= 0) + FD_SET(master, &rfds); tv.tv_sec = 1; - tv.tv_usec = 0; - select_ret = select(max(master, _dpkgin)+1, &rfds, NULL, NULL, &tv); - if (select_ret < 0) - std::cerr << "Error in select()" << std::endl; - else if (select_ret == 0) - continue; - - if(FD_ISSET(master, &rfds)) + tv.tv_nsec = 0; + select_ret = pselect(max(master, _dpkgin)+1, &rfds, NULL, NULL, + &tv, &original_sigmask); + if (select_ret < 0 && (errno == EINVAL || errno == ENOSYS)) + select_ret = racy_pselect(max(master, _dpkgin)+1, &rfds, NULL, + NULL, &tv, &original_sigmask); + if (select_ret == 0) + continue; + else if (select_ret < 0 && errno == EINTR) + continue; + else if (select_ret < 0) + { + perror("select() returned error"); + continue; + } + + if(master >= 0 && FD_ISSET(master, &rfds)) DoTerminalPty(master); - if(FD_ISSET(0, &rfds)) + if(master >= 0 && FD_ISSET(0, &rfds)) DoStdin(master); if(FD_ISSET(_dpkgin, &rfds)) DoDpkgStatusFd(_dpkgin, OutStatusFd); @@ -821,7 +850,11 @@ bool pkgDPkgPM::Go(int OutStatusFd) signal(SIGQUIT,old_SIGQUIT); signal(SIGINT,old_SIGINT); - tcsetattr(0, TCSAFLUSH, &tt); + if(master >= 0) + { + tcsetattr(0, TCSAFLUSH, &tt); + close(master); + } // Check for an error code. if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0) @@ -843,14 +876,12 @@ bool pkgDPkgPM::Go(int OutStatusFd) if(stopOnError) { - if(term_out) - fclose(term_out); + CloseLog(); return false; } } } - if(term_out) - fclose(term_out); + CloseLog(); if (RunScripts("DPkg::Post-Invoke") == false) return false; @@ -877,25 +908,24 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg) if (_config->FindB("Dpkg::ApportFailureReport",true) == false) return; - // only report the first error if we are in StopOnError=false mode - // to prevent bogus reports - if((_config->FindB("Dpkg::StopOnError",true) == false) && pkgFailures > 1) + // only report the first error + if(pkgFailures > _config->FindI("APT::Apport::MaxReports", 3)) return; // get the pkgname and reportfile pkgname = flNotDir(pkgpath); - pos = pkgname.rfind('_'); + pos = pkgname.find('_'); if(pos != string::npos) - pkgname = string(pkgname, 0, pos); + pkgname = pkgname.substr(0, pos); // find the package versin and source package name pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname); if (Pkg.end() == true) return; pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg); - pkgver = Ver.VerStr(); if (Ver.end() == true) return; + pkgver = Ver.VerStr() == NULL ? "unknown" : Ver.VerStr(); pkgRecords Recs(Cache); pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList()); srcpkgname = Parse.SourcePkg();