X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/c0c0b100a9e276a86e1e0943e64aa7e29e67d72c..e43312cf4e19bd3eab15a4f43a586e2ab28c9763:/apt-pkg/deb/dpkgpm.cc diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc index c3f255401..7e1933f06 100644 --- a/apt-pkg/deb/dpkgpm.cc +++ b/apt-pkg/deb/dpkgpm.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: dpkgpm.cc,v 1.24 2002/04/02 06:42:39 jgg Exp $ +// $Id: dpkgpm.cc,v 1.28 2004/01/27 02:25:01 mdz Exp $ /* ###################################################################### DPKG Package Manager - Provide an interface to dpkg @@ -8,32 +8,45 @@ ##################################################################### */ /*}}}*/ // Includes /*{{{*/ -#ifdef __GNUG__ -#pragma implementation "apt-pkg/dpkgpm.h" -#endif #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; + + // DPkgPM::pkgDPkgPM - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) : pkgPackageManager(Cache) +pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) + : pkgPackageManager(Cache), dpkgbuf_pos(0), PackagesDone(0), + PackagesTotal(0), term_out(NULL) { } /*}}}*/ @@ -144,7 +157,6 @@ bool pkgDPkgPM::RunScripts(const char *Cnf) return true; } - /*}}}*/ // DPkgPM::SendV2Pkgs - Send version 2 package info /*{{{*/ // --------------------------------------------------------------------- @@ -325,26 +337,295 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf) } /*}}}*/ +// DPkgPM::DoStdin - Read stdin and pass to slave pty /*{{{*/ +// --------------------------------------------------------------------- +/* +*/ +void pkgDPkgPM::DoStdin(int master) +{ + char input_buf[256] = {0,}; + int len = read(0, input_buf, sizeof(input_buf)); + write(master, input_buf, len); +} + /*}}}*/ +// DPkgPM::DoTerminalPty - Read the terminal pty and write log /*{{{*/ +// --------------------------------------------------------------------- +/* + * read the terminal pty and write log + */ +void pkgDPkgPM::DoTerminalPty(int master) +{ + char term_buf[1024] = {0,}; + + int len=read(master, term_buf, sizeof(term_buf)); + if(len <= 0) + return; + write(1, term_buf, len); + if(term_out) + fwrite(term_buf, len, sizeof(char), term_out); +} + /*}}}*/ +// DPkgPM::ProcessDpkgStatusBuf /*{{{*/ +// --------------------------------------------------------------------- +/* + */ +void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line) +{ + // the status we output + ostringstream status; + + if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true) + std::clog << "got from dpkg '" << line << "'" << std::endl; + + + /* dpkg sends strings like this: + 'status: : ' + errors look like this: + 'status: /var/cache/apt/archives/krecipes_0.8.1-0ubuntu1_i386.deb : error : trying to overwrite `/usr/share/doc/kde/HTML/en/krecipes/krectip.png', which is also in package krecipes-data + and conffile-prompt like this + 'status: conffile-prompt: conffile : 'current-conffile' 'new-conffile' useredited distedited + + */ + char* list[5]; + // dpkg sends multiline error messages sometimes (see + // #374195 for a example. we should support this by + // either patching dpkg to not send multiline over the + // 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 (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true) + std::clog << "ignoring line: not enough ':'" << std::endl; + return; + } + + if(strncmp(action,"error",strlen("error")) == 0) + { + status << "pmerror:" << list[1] + << ":" << (PackagesDone/float(PackagesTotal)*100.0) + << ":" << list[3] + << endl; + if(OutStatusFd > 0) + write(OutStatusFd, status.str().c_str(), status.str().size()); + if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true) + std::clog << "send: '" << status.str() << "'" << endl; + pkgFailures++; + WriteApportReport(list[1], list[3]); + return; + } + if(strncmp(action,"conffile",strlen("conffile")) == 0) + { + status << "pmconffile:" << list[1] + << ":" << (PackagesDone/float(PackagesTotal)*100.0) + << ":" << list[3] + << endl; + if(OutStatusFd > 0) + write(OutStatusFd, status.str().c_str(), status.str().size()); + if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true) + std::clog << "send: '" << status.str() << "'" << endl; + return; + } + + vector &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 && (strcmp(action, next_action) == 0)) + { + // only read the translation if there is actually a next + // action + const char *translation = _(states[PackageOpsDone[pkg]].str); + char s[200]; + snprintf(s, sizeof(s), translation, pkg); + + // we moved from one dpkg state to a new one, report that + PackageOpsDone[pkg]++; + PackagesDone++; + // build the status str + status << "pmstatus:" << pkg + << ":" << (PackagesDone/float(PackagesTotal)*100.0) + << ":" << s + << endl; + if(OutStatusFd > 0) + write(OutStatusFd, status.str().c_str(), status.str().size()); + if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true) + std::clog << "send: '" << status.str() << "'" << endl; + } + if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true) + std::clog << "(parsed from dpkg) pkg: " << pkg + << " action: " << action << endl; +} + +// DPkgPM::DoDpkgStatusFd /*{{{*/ +// --------------------------------------------------------------------- +/* + */ +void pkgDPkgPM::DoDpkgStatusFd(int statusfd, int OutStatusFd) +{ + char *p, *q; + int len; + + len=read(statusfd, &dpkgbuf[dpkgbuf_pos], sizeof(dpkgbuf)-dpkgbuf_pos); + dpkgbuf_pos += len; + if(len <= 0) + return; + + // process line by line if we have a buffer + p = q = dpkgbuf; + while((q=(char*)memchr(p, '\n', dpkgbuf+dpkgbuf_pos-p)) != NULL) + { + *q = 0; + ProcessDpkgStatusLine(OutStatusFd, p); + 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 dpkgbuf_pos + p = (char*)memrchr(dpkgbuf, 0, dpkgbuf_pos); + if(p == NULL) + return; + + // we are interessted in the first char *after* 0x0 + p++; + + // move the unprocessed tail to the start and update pos + memmove(dpkgbuf, p, p-dpkgbuf); + dpkgbuf_pos = dpkgbuf+dpkgbuf_pos-p; +} + /*}}}*/ + +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; +} + + // DPkgPM::Go - Run the sequence /*{{{*/ // --------------------------------------------------------------------- -/* This globs the operations and calls dpkg */ -bool pkgDPkgPM::Go() +/* This globs the operations and calls dpkg + * + * If it is called with "OutStatusFd" set to a valid file descriptor + * apt will report the install progress over this fd. It maps the + * dpkg states a package goes through to human readable (and i10n-able) + * names and calculates a percentage for each step. +*/ +bool pkgDPkgPM::Go(int OutStatusFd) { + unsigned int MaxArgs = _config->FindI("Dpkg::MaxArgs",8*1024); + unsigned int MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes",32*1024); + if (RunScripts("DPkg::Pre-Invoke") == false) return false; if (RunScriptsWithPkgs("DPkg::Pre-Install-Pkgs") == false) return false; + + // 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] = { + // Install operation + { + {"half-installed", N_("Preparing %s")}, + {"unpacked", N_("Unpacking %s") }, + {NULL, NULL} + }, + // Configure operation + { + {"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} + }, + // Purge operation + { + {"config-files", N_("Preparing to completely remove %s")}, + {"not-installed", N_("Completely removed %s")}, + {NULL, NULL} + }, + }; + // 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::iterator I = List.begin(); I != List.end();I++) + { + string name = (*I).Pkg.Name(); + PackageOpsDone[name] = 0; + for(int i=0; (DpkgStatesOpMap[(*I).Op][i]).state != NULL; i++) + { + PackageOps[name].push_back(DpkgStatesOpMap[(*I).Op][i]); + PackagesTotal++; + } + } + + // create log + OpenLog(); + + // this loop is runs once per operation for (vector::iterator I = List.begin(); I != List.end();) { vector::iterator J = I; for (; J != List.end() && J->Op == I->Op; J++); // Generate the argument list - const char *Args[400]; - if (J - I > 350) - J = I + 350; + const char *Args[MaxArgs + 50]; + if (J - I > (signed)MaxArgs) + J = I + MaxArgs; unsigned int n = 0; unsigned long Size = 0; @@ -366,6 +647,16 @@ bool pkgDPkgPM::Go() } } + char status_fd_buf[20]; + int fd[2]; + pipe(fd); + + Args[n++] = "--status-fd"; + Size += strlen(Args[n-1]); + snprintf(status_fd_buf,sizeof(status_fd_buf),"%i", fd[1]); + Args[n++] = status_fd_buf; + Size += strlen(Args[n-1]); + switch (I->Op) { case Item::Remove: @@ -394,13 +685,15 @@ bool pkgDPkgPM::Go() case Item::Install: Args[n++] = "--unpack"; Size += strlen(Args[n-1]); + Args[n++] = "--auto-deconfigure"; + Size += strlen(Args[n-1]); break; } // Write in the file or package names if (I->Op == Item::Install) { - for (;I != J && Size < 1024; I++) + for (;I != J && Size < MaxArgBytes; I++) { if (I->File[0] != '/') return _error->Error("Internal Error, Pathname to install is not absolute '%s'",I->File.c_str()); @@ -410,7 +703,7 @@ bool pkgDPkgPM::Go() } else { - for (;I != J && Size < 1024; I++) + for (;I != J && Size < MaxArgBytes; I++) { Args[n++] = I->Pkg.Name(); Size += strlen(Args[n-1]); @@ -435,19 +728,56 @@ bool pkgDPkgPM::Go() 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 doesn't die but we do! So we must also ignore it */ - signal(SIGQUIT,SIG_IGN); - signal(SIGINT,SIG_IGN); - - // Fork dpkg - pid_t Child = ExecFork(); + sighandler_t old_SIGQUIT = signal(SIGQUIT,SIG_IGN); + sighandler_t old_SIGINT = signal(SIGINT,SIG_IGN); + + struct termios tt; + struct winsize win; + int master; + int slave; + + // FIXME: setup sensible signal handling (*ick*) + tcgetattr(0, &tt); + ioctl(0, TIOCGWINSZ, (char *)&win); + if (openpty(&master, &slave, NULL, &tt, &win) < 0) + { + 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); + } + + // Fork dpkg + pid_t Child; + _config->Set("APT::Keep-Fds::",fd[1]); + Child = ExecFork(); // This is the child if (Child == 0) { + 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) _exit(100); - if (_config->FindB("DPkg::FlushSTDIN",true) == true) + if (_config->FindB("DPkg::FlushSTDIN",true) == true && isatty(STDIN_FILENO)) { int Flags,dummy; if ((Flags = fcntl(STDIN_FILENO,F_GETFL,dummy)) < 0) @@ -462,7 +792,8 @@ bool pkgDPkgPM::Go() 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("DPKG_NO_TSTP=yes"); @@ -471,33 +802,100 @@ bool pkgDPkgPM::Go() _exit(100); } + // clear the Keep-Fd again + _config->Clear("APT::Keep-Fds",fd[1]); + // Wait for dpkg int Status = 0; - while (waitpid(Child,&Status,0) != Child) - { - if (errno == EINTR) - continue; - RunScripts("DPkg::Post-Invoke"); - return _error->Errno("waitpid","Couldn't wait for subprocess"); + + // we read from dpkg here + int _dpkgin = fd[0]; + close(fd[1]); // close the write end of the pipe + + // the result of the waitpid call + int res; + if(slave > 0) + close(slave); + + // setups fds + fd_set rfds; + struct timeval tv; + int select_ret; + 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); + return _error->Errno("waitpid","Couldn't wait for subprocess"); + } + + // wait for input or output here + FD_ZERO(&rfds); + FD_SET(0, &rfds); + FD_SET(_dpkgin, &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) + 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(master >= 0 && FD_ISSET(0, &rfds)) + DoStdin(master); + if(FD_ISSET(_dpkgin, &rfds)) + DoDpkgStatusFd(_dpkgin, OutStatusFd); } + close(_dpkgin); // Restore sig int/quit - signal(SIGQUIT,SIG_DFL); - signal(SIGINT,SIG_DFL); + signal(SIGQUIT,old_SIGQUIT); + signal(SIGINT,old_SIGINT); + + if(master >= 0 && slave >= 0) + tcsetattr(0, TCSAFLUSH, &tt); // Check for an error code. if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0) { - RunScripts("DPkg::Post-Invoke"); - if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV) - return _error->Error("Sub-process %s received a segmentation fault.",Args[0]); - - if (WIFEXITED(Status) != 0) - return _error->Error("Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status)); + // if it was set to "keep-dpkg-runing" then we won't return + // here but keep the loop going and just report it as a error + // for later + bool stopOnError = _config->FindB("Dpkg::StopOnError",true); - return _error->Error("Sub-process %s exited unexpectedly",Args[0]); + if(stopOnError) + RunScripts("DPkg::Post-Invoke"); + + if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV) + _error->Error("Sub-process %s received a segmentation fault.",Args[0]); + else if (WIFEXITED(Status) != 0) + _error->Error("Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status)); + else + _error->Error("Sub-process %s exited unexpectedly",Args[0]); + + if(stopOnError) + { + CloseLog(); + return false; + } } } + CloseLog(); if (RunScripts("DPkg::Post-Invoke") == false) return false; @@ -512,3 +910,115 @@ 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) +{ + string pkgname, reportfile, srcpkgname, pkgver, arch; + string::size_type pos; + FILE *report; + + 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) + return; + + // get the pkgname and reportfile + pkgname = flNotDir(pkgpath); + pos = pkgname.find('_'); + if(pos != string::npos) + 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; + pkgRecords Recs(Cache); + pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList()); + srcpkgname = Parse.SourcePkg(); + if(srcpkgname.empty()) + srcpkgname = pkgname; + + // if the file exists already, we check: + // - if it was reported already (touched by apport). + // If not, we do nothing, otherwise + // we overwrite it. This is the same behaviour as apport + // - if we have a report with the same pkgversion already + // then we skip it + reportfile = flCombine("/var/crash",pkgname+".0.crash"); + if(FileExists(reportfile)) + { + struct stat buf; + char strbuf[255]; + + // check atime/mtime + stat(reportfile.c_str(), &buf); + if(buf.st_mtime > buf.st_atime) + return; + + // check if the existing report is the same version + report = fopen(reportfile.c_str(),"r"); + while(fgets(strbuf, sizeof(strbuf), report) != NULL) + { + if(strstr(strbuf,"Package:") == strbuf) + { + char pkgname[255], version[255]; + if(sscanf(strbuf, "Package: %s %s", pkgname, version) == 2) + if(strcmp(pkgver.c_str(), version) == 0) + { + fclose(report); + return; + } + } + } + fclose(report); + } + + // now write the report + arch = _config->Find("APT::Architecture"); + report = fopen(reportfile.c_str(),"w"); + if(report == NULL) + return; + if(_config->FindB("DPkgPM::InitialReportOnly",false) == true) + chmod(reportfile.c_str(), 0); + else + chmod(reportfile.c_str(), 0600); + fprintf(report, "ProblemType: Package\n"); + fprintf(report, "Architecture: %s\n", arch.c_str()); + time_t now = time(NULL); + fprintf(report, "Date: %s" , ctime(&now)); + fprintf(report, "Package: %s %s\n", pkgname.c_str(), pkgver.c_str()); + fprintf(report, "SourcePackage: %s\n", srcpkgname.c_str()); + fprintf(report, "ErrorMessage:\n %s\n", errormsg); + + // ensure that the log is flushed + if(term_out) + fflush(term_out); + + // attach terminal log it if we have it + string logfile_name = _config->FindFile("Dir::Log::Terminal"); + if (!logfile_name.empty()) + { + FILE *log = NULL; + char buf[1024]; + + fprintf(report, "DpkgTerminalLog:\n"); + log = fopen(logfile_name.c_str(),"r"); + if(log != NULL) + { + while( fgets(buf, sizeof(buf), log) != NULL) + fprintf(report, " %s", buf); + fclose(log); + } + } + fclose(report); +} + /*}}}*/