X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/7fc9db7c75948504393971681054c5dbea137c5d..919e5852f297045cdb409143df663ad630b123e8:/apt-pkg/deb/dpkgpm.cc?ds=sidebyside diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc index aa840f85e..e3fe8d845 100644 --- a/apt-pkg/deb/dpkgpm.cc +++ b/apt-pkg/deb/dpkgpm.cc @@ -13,6 +13,7 @@ #include #include #include +#include #include #include @@ -43,7 +44,8 @@ using namespace std; // --------------------------------------------------------------------- /* */ pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) - : pkgPackageManager(Cache), dpkgbuf_pos(0), PackagesTotal(0), PackagesDone(0) + : pkgPackageManager(Cache), dpkgbuf_pos(0), + term_out(NULL), PackagesDone(0), PackagesTotal(0) { } /*}}}*/ @@ -350,12 +352,20 @@ void pkgDPkgPM::DoStdin(int master) /* * read the terminal pty and write log */ -void pkgDPkgPM::DoTerminalPty(int master, FILE *term_out) +void pkgDPkgPM::DoTerminalPty(int master) { char term_buf[1024] = {0,}; int len=read(master, term_buf, sizeof(term_buf)); - if(len <= 0) + 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) @@ -390,14 +400,14 @@ 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) { @@ -493,6 +503,67 @@ 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.tv_sec; + tv.tv_usec = timeout->tv.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 /*{{{*/ // --------------------------------------------------------------------- @@ -516,7 +587,7 @@ 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")}, @@ -527,12 +598,20 @@ 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} @@ -561,25 +640,7 @@ bool pkgDPkgPM::Go(int OutStatusFd) } // 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")); - FILE *term_out = NULL; - 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();) @@ -706,15 +767,19 @@ bool pkgDPkgPM::Go(int OutStatusFd) ioctl(0, TIOCGWINSZ, (char *)&win); if (openpty(&master, &slave, NULL, &tt, &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]); @@ -723,13 +788,16 @@ 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) @@ -754,7 +822,7 @@ 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); @@ -770,16 +838,19 @@ bool pkgDPkgPM::Go(int OutStatusFd) int _dpkgin = fd[0]; close(fd[1]); // close the write end of the pipe - // the read buffers for the communication with dpkg - char buf[2] = {0,0}; - // 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) { @@ -799,18 +870,28 @@ bool pkgDPkgPM::Go(int OutStatusFd) FD_ZERO(&rfds); 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)) - DoTerminalPty(master, term_out); - if(FD_ISSET(0, &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(master >= 0 && FD_ISSET(0, &rfds)) DoStdin(master); if(FD_ISSET(_dpkgin, &rfds)) DoDpkgStatusFd(_dpkgin, OutStatusFd); @@ -821,7 +902,11 @@ 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) @@ -843,12 +928,12 @@ bool pkgDPkgPM::Go(int OutStatusFd) if(stopOnError) { - fclose(term_out); + CloseLog(); return false; } } } - fclose(term_out); + CloseLog(); if (RunScripts("DPkg::Post-Invoke") == false) return false;