]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/deb/dpkgpm.cc
* merged from the mvo branch
[apt.git] / apt-pkg / deb / dpkgpm.cc
index bf0434ccc5ab32c5333c122579f7d48117c743f8..ac63ccfdf73d0a55086011a3b89ca0fd13368d3f 100644 (file)
@@ -8,18 +8,17 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Includes                                                            /*{{{*/
-#ifdef __GNUG__
-#pragma implementation "apt-pkg/dpkgpm.h"
-#endif
 #include <apt-pkg/dpkgpm.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/depcache.h>
 #include <apt-pkg/strutl.h>
+#include <apti18n.h>
 
 #include <unistd.h>
 #include <stdlib.h>
 #include <fcntl.h>
+#include <sys/select.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <signal.h>
 #include <sstream>
 #include <map>
 
+#include <termios.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <pty.h>
+
 #include <config.h>
 #include <apti18n.h>
                                                                        /*}}}*/
 
 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)
 {
 }
                                                                        /*}}}*/
@@ -326,7 +334,168 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
 
    return true;
 }
+
                                                                        /*}}}*/
+// 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:   <pkg>:  <pkg  qstate>'
+      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;
+      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<struct DpkgState> &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;
+}
+                                                                       /*}}}*/
+
+
 // DPkgPM::Go - Run the sequence                                       /*{{{*/
 // ---------------------------------------------------------------------
 /* This globs the operations and calls dpkg 
@@ -347,49 +516,45 @@ bool pkgDPkgPM::Go(int OutStatusFd)
    if (RunScriptsWithPkgs("DPkg::Pre-Install-Pkgs") == false)
       return false;
    
-   // prepare the progress reporting 
-   int Done = 0;
-   int Total = 0;
    // 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", _("Preparing %s")}, 
-        {"unpacked", _("Unpacking %s") }, 
+        {"half-installed", N_("Preparing %s")}, 
+        {"unpacked", N_("Unpacking %s") }, 
         {NULL, NULL}
       },
       // Configure operation
       { 
-        {"unpacked",_("Preparing to configure %s") },
-        {"half-configured", _("Configuring %s") },
-        { "installed", _("Installed %s")},
+        {"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", _("Preparing for removal of %s")},
-        {"half-installed", _("Removing %s")},
-        {"config-files",  _("Removed %s")},
+        {"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", _("Preparing to completely remove %s")},
-        {"not-installed", _("Completely removed %s")},
+        {"config-files", N_("Preparing to completely remove %s")},
+        {"not-installed", N_("Completely removed %s")},
         {NULL, NULL}
       },
    };
 
-   // the dpkg states that the pkg will run through, the string is 
-   // the package, the vector contains the dpkg states that the package
-   // will go through
-   map<string,vector<struct DpkgState> > PackageOps;
-   // the dpkg states that are already done; the string is the package
-   // the int is the state that is already done (e.g. a package that is
-   // going to be install is already in state "half-installed")
-   map<string,int> PackageOpsDone;
-
    // 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)
@@ -401,10 +566,30 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       for(int i=0; (DpkgStatesOpMap[(*I).Op][i]).state != NULL;  i++) 
       {
         PackageOps[name].push_back(DpkgStatesOpMap[(*I).Op][i]);
-        Total++;
+        PackagesTotal++;
       }
    }   
 
+   // 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");
+   }
+
    // this loop is runs once per operation
    for (vector<Item>::iterator I = List.begin(); I != List.end();)
    {
@@ -474,6 +659,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         case Item::Install:
         Args[n++] = "--unpack";
         Size += strlen(Args[n-1]);
+        Args[n++] = "--auto-deconfigure";
+        Size += strlen(Args[n-1]);
         break;
       }
       
@@ -517,7 +704,30 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         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);
-       
+
+      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]);
@@ -526,8 +736,18 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       // 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);
         
@@ -546,7 +766,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            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");
@@ -563,16 +784,17 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
       // we read from dpkg here
       int _dpkgin = fd[0];
-      fcntl(_dpkgin, F_SETFL, O_NONBLOCK);
       close(fd[1]);                        // close the write end of the pipe
 
-      // the read buffers for the communication with dpkg
-      char line[1024] = {0,};
-      char buf[2] = {0,0};
-      
       // 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
@@ -586,134 +808,70 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            signal(SIGINT,old_SIGINT);
            return _error->Errno("waitpid","Couldn't wait for subprocess");
         }
-        
-        // read a single char, make sure that the read can't block 
-        // (otherwise we may leave zombies)
-         int len = read(_dpkgin, buf, 1);
 
-        // nothing to read, wait a bit for more
-        if(len <= 0)
-        {
-           usleep(1000);
-           continue;
-        }
+        // 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;
+        } 
         
-        // sanity check (should never happen)
-        if(strlen(line) >= sizeof(line)-10)
-        {
-           _error->Error("got a overlong line from dpkg: '%s'",line);
-           line[0]=0;
-        }
-        // append to line, check if we got a complete line
-        strcat(line, buf);
-        if(buf[0] != '\n')
-           continue;
-
-        if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
-           std::clog << "got from dpkg '" << line << "'" << std::endl;
-
-        // the status we output
-        ostringstream status;
-
-        /* dpkg sends strings like this:
-           'status:   <pkg>:  <pkg  qstate>'
-           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];
-        if(!TokSplitString(':', line, list, sizeof(list)/sizeof(list[0])))
-           // FIXME: 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
-           continue;
-        char *pkg = list[1];
-        char *action = _strstrip(list[2]);
-
-        if(strncmp(action,"error",strlen("error")) == 0)
-        {
-           status << "pmerror:" << list[1]
-                  << ":"  << (Done/float(Total)*100.0) 
-                  << ":" << list[3]
-                  << endl;
-           if(OutStatusFd > 0)
-              write(OutStatusFd, status.str().c_str(), status.str().size());
-           line[0]=0;
-           if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
-              std::clog << "send: '" << status.str() << "'" << endl;
-           continue;
-        }
-        if(strncmp(action,"conffile",strlen("conffile")) == 0)
-        {
-           status << "pmconffile:" << list[1]
-                  << ":"  << (Done/float(Total)*100.0) 
-                  << ":" << list[3]
-                  << endl;
-           if(OutStatusFd > 0)
-              write(OutStatusFd, status.str().c_str(), status.str().size());
-           line[0]=0;
-           if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
-              std::clog << "send: '" << status.str() << "'" << endl;
-           continue;
-        }
-
-        vector<struct DpkgState> &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]++;
-           Done++;
-           // build the status str
-           status << "pmstatus:" << pkg 
-                  << ":"  << (Done/float(Total)*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;
-
-        // reset the line buffer
-        line[0]=0;
+        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,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) 
+        {
+           if(term_out)
+              fclose(term_out);
+           return false;
+        }
       }      
    }
+   if(term_out)
+      fclose(term_out);
 
    if (RunScripts("DPkg::Post-Invoke") == false)
       return false;