]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/deb/dpkgpm.cc
* first (raw and ineffient) implementation
[apt.git] / apt-pkg / deb / dpkgpm.cc
index 2e85fc14ea28b2f3f5d799a83b0c078a96a4f9df..9ca519acddb1de9259a81442d0d52ed1bbba2e48 100644 (file)
@@ -8,9 +8,6 @@
    ##################################################################### */
                                                                        /*}}}*/
 // 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 <sstream>
 #include <map>
 
+#include <termios.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <pty.h>
+
 #include <config.h>
 #include <apti18n.h>
                                                                        /*}}}*/
@@ -355,29 +357,29 @@ bool pkgDPkgPM::Go(int OutStatusFd)
    static const struct DpkgState DpkgStatesOpMap[][5] = {
       // Install operation
       { 
-        {"half-installed", _("Preparing %s")}, 
-        {"unpacked", _("Unpacking %s") }, 
-        NULL
+        {"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")},
-         NULL
+        {"unpacked",N_("Preparing to configure %s") },
+        {"half-configured", N_("Configuring %s") },
+        { "installed", N_("Installed %s")},
+        {NULL, NULL}
       },
       // Remove operation
       { 
-        {"half-configured", _("Preparing for removal of %s")},
-        {"half-installed", _("Removing %s")},
-        {"config-files",  _("Removed %s")},
-         NULL
+        {"half-configured", N_("Preparing for removal of %s")},
+        {"half-installed", N_("Removing %s")},
+        {"config-files",  N_("Removed %s")},
+        {NULL, NULL}
       },
       // Purge operation
       { 
-        {"config-files", _("Preparing for remove with config %s")},
-        {"not-installed", _("Removed with config %s")},
-        NULL 
+        {"config-files", N_("Preparing to completely remove %s")},
+        {"not-installed", N_("Completely removed %s")},
+        {NULL, NULL}
       },
    };
 
@@ -474,6 +476,8 @@ 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 +521,24 @@ 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;
+
+      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]);
@@ -526,8 +547,16 @@ 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);
+
         close(fd[0]); // close the read end of the pipe
-        
+
         if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
            _exit(100);
         
@@ -546,7 +575,8 @@ 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");
@@ -568,11 +598,19 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
       // the read buffers for the communication with dpkg
       char line[1024] = {0,};
+      
       char buf[2] = {0,0};
+      char term_buf[2] = {0,0};
+      char input_buf[2] = {0,0};
       
       // the result of the waitpid call
       int res;
-
+      close(slave);
+      fcntl(0, F_SETFL, O_NONBLOCK);
+      fcntl(master, F_SETFL, O_NONBLOCK);
+      FILE *term_out = fopen("/var/log/dpkg-out.log","a");
+      chmod("/var/log/dpkg-out.log", 0600);
+      
       while ((res=waitpid(Child,&Status, WNOHANG)) != Child) {
         if(res < 0) {
            // FIXME: move this to a function or something, looks ugly here
@@ -586,18 +624,41 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            signal(SIGINT,old_SIGINT);
            return _error->Errno("waitpid","Couldn't wait for subprocess");
         }
+
+        // wait for input or output here
+        
+        // FIXME: use select() instead of the rubish below
         
         // read a single char, make sure that the read can't block 
         // (otherwise we may leave zombies)
+         int term_len = read(master, term_buf, 1);
+        int input_len = read(0, input_buf, 1);
          int len = read(_dpkgin, buf, 1);
 
-        // nothing to read, wait a bit for more
+        // see if we have any input that needs to go to the 
+        // master pty
+        if(input_len > 0) 
+           write(master, input_buf, 1);
+
+        // see if we have any output that needs to be echoed
+        // and written to the log
+        if(term_len > 0) 
+        {
+           do
+           {
+              fwrite(term_buf, 1, 1, term_out);
+              write(1, term_buf, 1);
+           } while(read(master, term_buf, 1) > 0);
+           term_buf[0] = 0;
+        }
+
+        // nothing to read from dpkg , wait a bit for more
         if(len <= 0)
         {
            usleep(1000);
            continue;
         }
-        
+
         // sanity check (should never happen)
         if(strlen(line) >= sizeof(line)-10)
         {
@@ -612,32 +673,78 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
            std::clog << "got from dpkg '" << line << "'" << std::endl;
 
-        // pass "error" and "conffile-prompt" messages from dpkg verbatim
-        if((strncmp(line,"error",strlen("error")) == 0) ||
-           (strncmp(line,"conffile-prompt",strlen("conffile-prompt")) == 0))
-        {
-              write(OutStatusFd, line, strlen(line));
-              line[0]=0;
-              continue;
-        }
-        // line contains the dpkg status info now. it has the form:
-        // 'status:   <pkg>:  <pkg  qstate>' (see dpkg(1) for details)
+        // 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];
-        TokSplitString(':', line, 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 = list[2];
+        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;
+        }
+
         vector<struct DpkgState> &states = PackageOps[pkg];
-        const char *next_action = states[PackageOpsDone[pkg]].state;
-        const char *translation = states[PackageOpsDone[pkg]].str;
-        char s[200];
-        snprintf(s, sizeof(s), translation, 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++;
-           ostringstream status;
            // build the status str
            status << "pmstatus:" << pkg 
                   << ":"  << (Done/float(Total)*100.0) 
@@ -646,11 +753,7 @@ bool pkgDPkgPM::Go(int OutStatusFd)
            if(OutStatusFd > 0)
               write(OutStatusFd, status.str().c_str(), status.str().size());
            if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true)
-           {
-              std::clog << "send to fd: '" << status.str() 
-                        << "'" << std::endl;
-              
-           }
+              std::clog << "send: '" << status.str() << "'" << endl;
 
         }
         if (_config->FindB("Debug::pkgDPkgProgressReporting",false) == true) 
@@ -661,22 +764,34 @@ bool pkgDPkgPM::Go(int OutStatusFd)
         line[0]=0;
       }
       close(_dpkgin);
+      fclose(term_out);
 
       // 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)
       {
-        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;
       }      
    }