apt-pkg/deb/dpkgpm.{cc,h}:

[apt.git] / apt-pkg / deb / dpkgpm.cc

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 2b167dbf6f31c79765135f2d416f27843b40d4cb..949ae1c3ff6978d6d5b9aa77f166902a33a72e20 100644 (file)
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -8,9 +8,6 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Includes                                                            /*{{{*/
    ##################################################################### */
                                                                        /*}}}*/
 // 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/dpkgpm.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/configuration.h>


@@ -20,6 +17,7 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <fcntl.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 <sys/types.h>
 #include <sys/wait.h>
 #include <signal.h>


@@ -28,6 +26,11 @@
 #include <sstream>
 #include <map>
 
 #include <sstream>
 #include <map>
 

+#include <termios.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <pty.h>
+

 #include <config.h>
 #include <apti18n.h>
                                                                        /*}}}*/
 #include <config.h>
 #include <apti18n.h>
                                                                        /*}}}*/


@@ -37,7 +40,7 @@ using namespace std;
 // DPkgPM::pkgDPkgPM - Constructor                                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // DPkgPM::pkgDPkgPM - Constructor                                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) : pkgPackageManager(Cache)
+pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) : pkgPackageManager(Cache), dpkgbuf_pos(0)

 {
 }
                                                                        /*}}}*/
 {
 }
                                                                        /*}}}*/


@@ -326,7 +329,83 @@ bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf)
 
    return true;
 }
 
    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, FILE *term_out)
+{
+   char term_buf[1024] = {0,};
+
+   int len=read(master, term_buf, sizeof(term_buf));
+   if(len <= 0)
+      return;
+   fwrite(term_buf, len, sizeof(char), term_out);
+   write(1, term_buf, len);
+}

                                                                        /*}}}*/
                                                                        /*}}}*/

+// DPkgPM::ProcessDpkgStatusBuf                                                /*{{{*/
+// ---------------------------------------------------------------------
+/*
+ */
+void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
+{
+   std::cerr << "got line: '" << line << "'" << std::endl;
+}
+
+// DPkgPM::DoDpkgStatusFd                                              /*{{{*/
+// ---------------------------------------------------------------------
+/*
+ */
+void pkgDPkgPM::DoDpkgStatusFd(int statusfd)
+{
+   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(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 
 // DPkgPM::Go - Run the sequence                                       /*{{{*/
 // ---------------------------------------------------------------------
 /* This globs the operations and calls dpkg 


@@ -474,6 +553,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         case Item::Install:
         Args[n++] = "--unpack";
         Size += strlen(Args[n-1]);
         case Item::Install:
         Args[n++] = "--unpack";
         Size += strlen(Args[n-1]);

+        Args[n++] = "--auto-deconfigure";
+        Size += strlen(Args[n-1]);

         break;
       }
       
         break;
       }
       


@@ -517,7 +598,26 @@ 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);
         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) 
+      {
+        fprintf(stderr, _("openpty failed\n"));
+      }
+
+      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]);
        // Fork dpkg
       pid_t Child;
       _config->Set("APT::Keep-Fds::",fd[1]);


@@ -526,8 +626,15 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       // This is the child
       if (Child == 0)
       {
       // 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);

         close(fd[0]); // close the read end of the pipe
         close(fd[0]); // close the read end of the pipe

-        
+

         if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
            _exit(100);
         
         if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
            _exit(100);
         


@@ -546,7 +653,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            if (fcntl(STDIN_FILENO,F_SETFL,Flags & (~(long)O_NONBLOCK)) < 0)
               _exit(100);
         }
            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");
         /* No Job Control Stop Env is a magic dpkg var that prevents it
            from using sigstop */
         putenv("DPKG_NO_TSTP=yes");


@@ -563,16 +671,31 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
       // we read from dpkg here
       int _dpkgin = fd[0];
 
       // 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
       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;
       char buf[2] = {0,0};
       
       // the result of the waitpid call
       int res;

-
+      close(slave);
+
+      // FIXME: make this a apt config option and add a logrotate file
+      FILE *term_out = fopen("/var/log/dpkg-out.log","a");
+      chmod("/var/log/dpkg-out.log", 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, "Log started: ");
+      fprintf(term_out, outstr);
+      fprintf(term_out, "\n");
+
+      // 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
       while ((res=waitpid(Child,&Status, WNOHANG)) != Child) {
         if(res < 0) {
            // FIXME: move this to a function or something, looks ugly here


@@ -586,132 +709,169 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            signal(SIGINT,old_SIGINT);
            return _error->Errno("waitpid","Couldn't wait for subprocess");
         }
            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);
+        // wait for input or output here
+        FD_ZERO(&rfds);
+        FD_SET(0, &rfds); 
+        FD_SET(_dpkgin, &rfds);
+        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;
            continue;

-        }
-        
-        // sanity check (should never happen)
-        if(strlen(line) >= sizeof(line)-10)
+
+        if(FD_ISSET(master, &rfds))
+           DoTerminalPty(master, term_out);
+        if(FD_ISSET(0, &rfds))
+           DoStdin(master);
+
+        if(FD_ISSET(_dpkgin, &rfds))
+           DoDpkgStatusFd(_dpkgin);
+#if 0
+        while(true)

         {
         {

-           _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(read(_dpkgin, buf, 1) <= 0)
+              break;

 
 

-        if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
-           std::clog << "got from dpkg '" << line << "'" << std::endl;
+           // sanity check (should never happen)
+           if(strlen(line) >= sizeof(line)-10)
+           {
+              _error->Error("got a overlong line from dpkg: '%s'",line);
+              line[0]=0;
+              continue;
+           }
+           // append to line, check if we got a complete line
+           strcat(line, buf);
+           if(buf[0] != '\n')
+              continue;

 
 

-        // 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
+           // 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
+           */
+           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
            //        #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]);
+           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;
+              // reset the line buffer
+              line[0]=0;
+              continue;
+           }

 
 

-        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;
-        }
+           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;
+           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;
+           }
+           if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true) 
+              std::clog << "(parsed from dpkg) pkg: " << pkg 
+                        << " action: " << action << endl;

 
 

-        // reset the line buffer
-        line[0]=0;
+           // reset the line buffer
+           line[0]=0;
+        }
+#endif

       }
       close(_dpkgin);
       }
       close(_dpkgin);

+      fclose(term_out);

 
       // Restore sig int/quit
       signal(SIGQUIT,old_SIGQUIT);
       signal(SIGINT,old_SIGINT);
 
       // Restore sig int/quit
       signal(SIGQUIT,old_SIGQUIT);
       signal(SIGINT,old_SIGINT);

+
+      tcsetattr(0, TCSAFLUSH, &tt);

        
       // Check for an error code.
       if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
       {
        
       // 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)
+           return false;

       }      
    }
 
       }      
    }