| 1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ |
| 3 | // $Id: dpkgpm.cc,v 1.28 2004/01/27 02:25:01 mdz Exp $ |
| 4 | /* ###################################################################### |
| 5 | |
| 6 | DPKG Package Manager - Provide an interface to dpkg |
| 7 | |
| 8 | ##################################################################### */ |
| 9 | /*}}}*/ |
| 10 | // Includes /*{{{*/ |
| 11 | #include <apt-pkg/dpkgpm.h> |
| 12 | #include <apt-pkg/error.h> |
| 13 | #include <apt-pkg/configuration.h> |
| 14 | #include <apt-pkg/depcache.h> |
| 15 | #include <apt-pkg/pkgrecords.h> |
| 16 | #include <apt-pkg/strutl.h> |
| 17 | #include <apti18n.h> |
| 18 | #include <apt-pkg/fileutl.h> |
| 19 | |
| 20 | #include <unistd.h> |
| 21 | #include <stdlib.h> |
| 22 | #include <fcntl.h> |
| 23 | #include <sys/select.h> |
| 24 | #include <sys/stat.h> |
| 25 | #include <sys/types.h> |
| 26 | #include <sys/wait.h> |
| 27 | #include <signal.h> |
| 28 | #include <errno.h> |
| 29 | #include <string.h> |
| 30 | #include <stdio.h> |
| 31 | #include <string.h> |
| 32 | #include <algorithm> |
| 33 | #include <sstream> |
| 34 | #include <map> |
| 35 | |
| 36 | #include <termios.h> |
| 37 | #include <unistd.h> |
| 38 | #include <sys/ioctl.h> |
| 39 | #include <pty.h> |
| 40 | |
| 41 | #include <config.h> |
| 42 | #include <apti18n.h> |
| 43 | /*}}}*/ |
| 44 | |
| 45 | using namespace std; |
| 46 | |
| 47 | namespace |
| 48 | { |
| 49 | // Maps the dpkg "processing" info to human readable names. Entry 0 |
| 50 | // of each array is the key, entry 1 is the value. |
| 51 | const std::pair<const char *, const char *> PackageProcessingOps[] = { |
| 52 | std::make_pair("install", N_("Installing %s")), |
| 53 | std::make_pair("configure", N_("Configuring %s")), |
| 54 | std::make_pair("remove", N_("Removing %s")), |
| 55 | std::make_pair("purge", N_("Completely removing %s")), |
| 56 | std::make_pair("disappear", N_("Noting disappearance of %s")), |
| 57 | std::make_pair("trigproc", N_("Running post-installation trigger %s")) |
| 58 | }; |
| 59 | |
| 60 | const std::pair<const char *, const char *> * const PackageProcessingOpsBegin = PackageProcessingOps; |
| 61 | const std::pair<const char *, const char *> * const PackageProcessingOpsEnd = PackageProcessingOps + sizeof(PackageProcessingOps) / sizeof(PackageProcessingOps[0]); |
| 62 | |
| 63 | // Predicate to test whether an entry in the PackageProcessingOps |
| 64 | // array matches a string. |
| 65 | class MatchProcessingOp |
| 66 | { |
| 67 | const char *target; |
| 68 | |
| 69 | public: |
| 70 | MatchProcessingOp(const char *the_target) |
| 71 | : target(the_target) |
| 72 | { |
| 73 | } |
| 74 | |
| 75 | bool operator()(const std::pair<const char *, const char *> &pair) const |
| 76 | { |
| 77 | return strcmp(pair.first, target) == 0; |
| 78 | } |
| 79 | }; |
| 80 | } |
| 81 | |
| 82 | /* helper function to ionice the given PID |
| 83 | |
| 84 | there is no C header for ionice yet - just the syscall interface |
| 85 | so we use the binary from util-linux |
| 86 | */ |
| 87 | static bool |
| 88 | ionice(int PID) |
| 89 | { |
| 90 | if (!FileExists("/usr/bin/ionice")) |
| 91 | return false; |
| 92 | pid_t Process = ExecFork(); |
| 93 | if (Process == 0) |
| 94 | { |
| 95 | char buf[32]; |
| 96 | snprintf(buf, sizeof(buf), "-p%d", PID); |
| 97 | const char *Args[4]; |
| 98 | Args[0] = "/usr/bin/ionice"; |
| 99 | Args[1] = "-c3"; |
| 100 | Args[2] = buf; |
| 101 | Args[3] = 0; |
| 102 | execv(Args[0], (char **)Args); |
| 103 | } |
| 104 | return ExecWait(Process, "ionice"); |
| 105 | } |
| 106 | |
| 107 | // DPkgPM::pkgDPkgPM - Constructor /*{{{*/ |
| 108 | // --------------------------------------------------------------------- |
| 109 | /* */ |
| 110 | pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache) |
| 111 | : pkgPackageManager(Cache), dpkgbuf_pos(0), |
| 112 | term_out(NULL), history_out(NULL), PackagesDone(0), PackagesTotal(0) |
| 113 | { |
| 114 | } |
| 115 | /*}}}*/ |
| 116 | // DPkgPM::pkgDPkgPM - Destructor /*{{{*/ |
| 117 | // --------------------------------------------------------------------- |
| 118 | /* */ |
| 119 | pkgDPkgPM::~pkgDPkgPM() |
| 120 | { |
| 121 | } |
| 122 | /*}}}*/ |
| 123 | // DPkgPM::Install - Install a package /*{{{*/ |
| 124 | // --------------------------------------------------------------------- |
| 125 | /* Add an install operation to the sequence list */ |
| 126 | bool pkgDPkgPM::Install(PkgIterator Pkg,string File) |
| 127 | { |
| 128 | if (File.empty() == true || Pkg.end() == true) |
| 129 | return _error->Error("Internal Error, No file name for %s",Pkg.Name()); |
| 130 | |
| 131 | // If the filename string begins with DPkg::Chroot-Directory, return the |
| 132 | // substr that is within the chroot so dpkg can access it. |
| 133 | string const chrootdir = _config->FindDir("DPkg::Chroot-Directory","/"); |
| 134 | if (chrootdir != "/" && File.find(chrootdir) == 0) |
| 135 | { |
| 136 | size_t len = chrootdir.length(); |
| 137 | if (chrootdir.at(len - 1) == '/') |
| 138 | len--; |
| 139 | List.push_back(Item(Item::Install,Pkg,File.substr(len))); |
| 140 | } |
| 141 | else |
| 142 | List.push_back(Item(Item::Install,Pkg,File)); |
| 143 | |
| 144 | return true; |
| 145 | } |
| 146 | /*}}}*/ |
| 147 | // DPkgPM::Configure - Configure a package /*{{{*/ |
| 148 | // --------------------------------------------------------------------- |
| 149 | /* Add a configure operation to the sequence list */ |
| 150 | bool pkgDPkgPM::Configure(PkgIterator Pkg) |
| 151 | { |
| 152 | if (Pkg.end() == true) |
| 153 | return false; |
| 154 | |
| 155 | List.push_back(Item(Item::Configure, Pkg)); |
| 156 | |
| 157 | // Use triggers for config calls if we configure "smart" |
| 158 | // as otherwise Pre-Depends will not be satisfied, see #526774 |
| 159 | if (_config->FindB("DPkg::TriggersPending", false) == true) |
| 160 | List.push_back(Item(Item::TriggersPending, PkgIterator())); |
| 161 | |
| 162 | return true; |
| 163 | } |
| 164 | /*}}}*/ |
| 165 | // DPkgPM::Remove - Remove a package /*{{{*/ |
| 166 | // --------------------------------------------------------------------- |
| 167 | /* Add a remove operation to the sequence list */ |
| 168 | bool pkgDPkgPM::Remove(PkgIterator Pkg,bool Purge) |
| 169 | { |
| 170 | if (Pkg.end() == true) |
| 171 | return false; |
| 172 | |
| 173 | if (Purge == true) |
| 174 | List.push_back(Item(Item::Purge,Pkg)); |
| 175 | else |
| 176 | List.push_back(Item(Item::Remove,Pkg)); |
| 177 | return true; |
| 178 | } |
| 179 | /*}}}*/ |
| 180 | // DPkgPM::SendV2Pkgs - Send version 2 package info /*{{{*/ |
| 181 | // --------------------------------------------------------------------- |
| 182 | /* This is part of the helper script communication interface, it sends |
| 183 | very complete information down to the other end of the pipe.*/ |
| 184 | bool pkgDPkgPM::SendV2Pkgs(FILE *F) |
| 185 | { |
| 186 | fprintf(F,"VERSION 2\n"); |
| 187 | |
| 188 | /* Write out all of the configuration directives by walking the |
| 189 | configuration tree */ |
| 190 | const Configuration::Item *Top = _config->Tree(0); |
| 191 | for (; Top != 0;) |
| 192 | { |
| 193 | if (Top->Value.empty() == false) |
| 194 | { |
| 195 | fprintf(F,"%s=%s\n", |
| 196 | QuoteString(Top->FullTag(),"=\"\n").c_str(), |
| 197 | QuoteString(Top->Value,"\n").c_str()); |
| 198 | } |
| 199 | |
| 200 | if (Top->Child != 0) |
| 201 | { |
| 202 | Top = Top->Child; |
| 203 | continue; |
| 204 | } |
| 205 | |
| 206 | while (Top != 0 && Top->Next == 0) |
| 207 | Top = Top->Parent; |
| 208 | if (Top != 0) |
| 209 | Top = Top->Next; |
| 210 | } |
| 211 | fprintf(F,"\n"); |
| 212 | |
| 213 | // Write out the package actions in order. |
| 214 | for (vector<Item>::iterator I = List.begin(); I != List.end(); I++) |
| 215 | { |
| 216 | if(I->Pkg.end() == true) |
| 217 | continue; |
| 218 | |
| 219 | pkgDepCache::StateCache &S = Cache[I->Pkg]; |
| 220 | |
| 221 | fprintf(F,"%s ",I->Pkg.Name()); |
| 222 | // Current version |
| 223 | if (I->Pkg->CurrentVer == 0) |
| 224 | fprintf(F,"- "); |
| 225 | else |
| 226 | fprintf(F,"%s ",I->Pkg.CurrentVer().VerStr()); |
| 227 | |
| 228 | // Show the compare operator |
| 229 | // Target version |
| 230 | if (S.InstallVer != 0) |
| 231 | { |
| 232 | int Comp = 2; |
| 233 | if (I->Pkg->CurrentVer != 0) |
| 234 | Comp = S.InstVerIter(Cache).CompareVer(I->Pkg.CurrentVer()); |
| 235 | if (Comp < 0) |
| 236 | fprintf(F,"> "); |
| 237 | if (Comp == 0) |
| 238 | fprintf(F,"= "); |
| 239 | if (Comp > 0) |
| 240 | fprintf(F,"< "); |
| 241 | fprintf(F,"%s ",S.InstVerIter(Cache).VerStr()); |
| 242 | } |
| 243 | else |
| 244 | fprintf(F,"> - "); |
| 245 | |
| 246 | // Show the filename/operation |
| 247 | if (I->Op == Item::Install) |
| 248 | { |
| 249 | // No errors here.. |
| 250 | if (I->File[0] != '/') |
| 251 | fprintf(F,"**ERROR**\n"); |
| 252 | else |
| 253 | fprintf(F,"%s\n",I->File.c_str()); |
| 254 | } |
| 255 | if (I->Op == Item::Configure) |
| 256 | fprintf(F,"**CONFIGURE**\n"); |
| 257 | if (I->Op == Item::Remove || |
| 258 | I->Op == Item::Purge) |
| 259 | fprintf(F,"**REMOVE**\n"); |
| 260 | |
| 261 | if (ferror(F) != 0) |
| 262 | return false; |
| 263 | } |
| 264 | return true; |
| 265 | } |
| 266 | /*}}}*/ |
| 267 | // DPkgPM::RunScriptsWithPkgs - Run scripts with package names on stdin /*{{{*/ |
| 268 | // --------------------------------------------------------------------- |
| 269 | /* This looks for a list of scripts to run from the configuration file |
| 270 | each one is run and is fed on standard input a list of all .deb files |
| 271 | that are due to be installed. */ |
| 272 | bool pkgDPkgPM::RunScriptsWithPkgs(const char *Cnf) |
| 273 | { |
| 274 | Configuration::Item const *Opts = _config->Tree(Cnf); |
| 275 | if (Opts == 0 || Opts->Child == 0) |
| 276 | return true; |
| 277 | Opts = Opts->Child; |
| 278 | |
| 279 | unsigned int Count = 1; |
| 280 | for (; Opts != 0; Opts = Opts->Next, Count++) |
| 281 | { |
| 282 | if (Opts->Value.empty() == true) |
| 283 | continue; |
| 284 | |
| 285 | // Determine the protocol version |
| 286 | string OptSec = Opts->Value; |
| 287 | string::size_type Pos; |
| 288 | if ((Pos = OptSec.find(' ')) == string::npos || Pos == 0) |
| 289 | Pos = OptSec.length(); |
| 290 | OptSec = "DPkg::Tools::Options::" + string(Opts->Value.c_str(),Pos); |
| 291 | |
| 292 | unsigned int Version = _config->FindI(OptSec+"::Version",1); |
| 293 | |
| 294 | // Create the pipes |
| 295 | int Pipes[2]; |
| 296 | if (pipe(Pipes) != 0) |
| 297 | return _error->Errno("pipe","Failed to create IPC pipe to subprocess"); |
| 298 | SetCloseExec(Pipes[0],true); |
| 299 | SetCloseExec(Pipes[1],true); |
| 300 | |
| 301 | // Purified Fork for running the script |
| 302 | pid_t Process = ExecFork(); |
| 303 | if (Process == 0) |
| 304 | { |
| 305 | // Setup the FDs |
| 306 | dup2(Pipes[0],STDIN_FILENO); |
| 307 | SetCloseExec(STDOUT_FILENO,false); |
| 308 | SetCloseExec(STDIN_FILENO,false); |
| 309 | SetCloseExec(STDERR_FILENO,false); |
| 310 | |
| 311 | const char *Args[4]; |
| 312 | Args[0] = "/bin/sh"; |
| 313 | Args[1] = "-c"; |
| 314 | Args[2] = Opts->Value.c_str(); |
| 315 | Args[3] = 0; |
| 316 | execv(Args[0],(char **)Args); |
| 317 | _exit(100); |
| 318 | } |
| 319 | close(Pipes[0]); |
| 320 | FILE *F = fdopen(Pipes[1],"w"); |
| 321 | if (F == 0) |
| 322 | return _error->Errno("fdopen","Faild to open new FD"); |
| 323 | |
| 324 | // Feed it the filenames. |
| 325 | bool Die = false; |
| 326 | if (Version <= 1) |
| 327 | { |
| 328 | for (vector<Item>::iterator I = List.begin(); I != List.end(); I++) |
| 329 | { |
| 330 | // Only deal with packages to be installed from .deb |
| 331 | if (I->Op != Item::Install) |
| 332 | continue; |
| 333 | |
| 334 | // No errors here.. |
| 335 | if (I->File[0] != '/') |
| 336 | continue; |
| 337 | |
| 338 | /* Feed the filename of each package that is pending install |
| 339 | into the pipe. */ |
| 340 | fprintf(F,"%s\n",I->File.c_str()); |
| 341 | if (ferror(F) != 0) |
| 342 | { |
| 343 | Die = true; |
| 344 | break; |
| 345 | } |
| 346 | } |
| 347 | } |
| 348 | else |
| 349 | Die = !SendV2Pkgs(F); |
| 350 | |
| 351 | fclose(F); |
| 352 | |
| 353 | // Clean up the sub process |
| 354 | if (ExecWait(Process,Opts->Value.c_str()) == false) |
| 355 | return _error->Error("Failure running script %s",Opts->Value.c_str()); |
| 356 | } |
| 357 | |
| 358 | return true; |
| 359 | } |
| 360 | /*}}}*/ |
| 361 | // DPkgPM::DoStdin - Read stdin and pass to slave pty /*{{{*/ |
| 362 | // --------------------------------------------------------------------- |
| 363 | /* |
| 364 | */ |
| 365 | void pkgDPkgPM::DoStdin(int master) |
| 366 | { |
| 367 | unsigned char input_buf[256] = {0,}; |
| 368 | ssize_t len = read(0, input_buf, sizeof(input_buf)); |
| 369 | if (len) |
| 370 | write(master, input_buf, len); |
| 371 | else |
| 372 | stdin_is_dev_null = true; |
| 373 | } |
| 374 | /*}}}*/ |
| 375 | // DPkgPM::DoTerminalPty - Read the terminal pty and write log /*{{{*/ |
| 376 | // --------------------------------------------------------------------- |
| 377 | /* |
| 378 | * read the terminal pty and write log |
| 379 | */ |
| 380 | void pkgDPkgPM::DoTerminalPty(int master) |
| 381 | { |
| 382 | unsigned char term_buf[1024] = {0,0, }; |
| 383 | |
| 384 | ssize_t len=read(master, term_buf, sizeof(term_buf)); |
| 385 | if(len == -1 && errno == EIO) |
| 386 | { |
| 387 | // this happens when the child is about to exit, we |
| 388 | // give it time to actually exit, otherwise we run |
| 389 | // into a race |
| 390 | usleep(500000); |
| 391 | return; |
| 392 | } |
| 393 | if(len <= 0) |
| 394 | return; |
| 395 | write(1, term_buf, len); |
| 396 | if(term_out) |
| 397 | fwrite(term_buf, len, sizeof(char), term_out); |
| 398 | } |
| 399 | /*}}}*/ |
| 400 | // DPkgPM::ProcessDpkgStatusBuf /*{{{*/ |
| 401 | // --------------------------------------------------------------------- |
| 402 | /* |
| 403 | */ |
| 404 | void pkgDPkgPM::ProcessDpkgStatusLine(int OutStatusFd, char *line) |
| 405 | { |
| 406 | bool const Debug = _config->FindB("Debug::pkgDPkgProgressReporting",false); |
| 407 | // the status we output |
| 408 | ostringstream status; |
| 409 | |
| 410 | if (Debug == true) |
| 411 | std::clog << "got from dpkg '" << line << "'" << std::endl; |
| 412 | |
| 413 | |
| 414 | /* dpkg sends strings like this: |
| 415 | 'status: <pkg>: <pkg qstate>' |
| 416 | errors look like this: |
| 417 | '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 |
| 418 | and conffile-prompt like this |
| 419 | 'status: conffile-prompt: conffile : 'current-conffile' 'new-conffile' useredited distedited |
| 420 | |
| 421 | Newer versions of dpkg sent also: |
| 422 | 'processing: install: pkg' |
| 423 | 'processing: configure: pkg' |
| 424 | 'processing: remove: pkg' |
| 425 | 'processing: purge: pkg' |
| 426 | 'processing: disappear: pkg' |
| 427 | 'processing: trigproc: trigger' |
| 428 | |
| 429 | */ |
| 430 | char* list[6]; |
| 431 | // dpkg sends multiline error messages sometimes (see |
| 432 | // #374195 for a example. we should support this by |
| 433 | // either patching dpkg to not send multiline over the |
| 434 | // statusfd or by rewriting the code here to deal with |
| 435 | // it. for now we just ignore it and not crash |
| 436 | TokSplitString(':', line, list, sizeof(list)/sizeof(list[0])); |
| 437 | if( list[0] == NULL || list[1] == NULL || list[2] == NULL) |
| 438 | { |
| 439 | if (Debug == true) |
| 440 | std::clog << "ignoring line: not enough ':'" << std::endl; |
| 441 | return; |
| 442 | } |
| 443 | const char* const pkg = list[1]; |
| 444 | const char* action = _strstrip(list[2]); |
| 445 | |
| 446 | // 'processing' from dpkg looks like |
| 447 | // 'processing: action: pkg' |
| 448 | if(strncmp(list[0], "processing", strlen("processing")) == 0) |
| 449 | { |
| 450 | char s[200]; |
| 451 | const char* const pkg_or_trigger = _strstrip(list[2]); |
| 452 | action = _strstrip( list[1]); |
| 453 | const std::pair<const char *, const char *> * const iter = |
| 454 | std::find_if(PackageProcessingOpsBegin, |
| 455 | PackageProcessingOpsEnd, |
| 456 | MatchProcessingOp(action)); |
| 457 | if(iter == PackageProcessingOpsEnd) |
| 458 | { |
| 459 | if (Debug == true) |
| 460 | std::clog << "ignoring unknown action: " << action << std::endl; |
| 461 | return; |
| 462 | } |
| 463 | snprintf(s, sizeof(s), _(iter->second), pkg_or_trigger); |
| 464 | |
| 465 | status << "pmstatus:" << pkg_or_trigger |
| 466 | << ":" << (PackagesDone/float(PackagesTotal)*100.0) |
| 467 | << ":" << s |
| 468 | << endl; |
| 469 | if(OutStatusFd > 0) |
| 470 | write(OutStatusFd, status.str().c_str(), status.str().size()); |
| 471 | if (Debug == true) |
| 472 | std::clog << "send: '" << status.str() << "'" << endl; |
| 473 | |
| 474 | if (strncmp(action, "disappear", strlen("disappear")) == 0) |
| 475 | handleDisappearAction(pkg_or_trigger); |
| 476 | return; |
| 477 | } |
| 478 | |
| 479 | if(strncmp(action,"error",strlen("error")) == 0) |
| 480 | { |
| 481 | // urgs, sometime has ":" in its error string so that we |
| 482 | // end up with the error message split between list[3] |
| 483 | // and list[4], e.g. the message: |
| 484 | // "failed in buffer_write(fd) (10, ret=-1): backend dpkg-deb ..." |
| 485 | // concat them again |
| 486 | if( list[4] != NULL ) |
| 487 | list[3][strlen(list[3])] = ':'; |
| 488 | |
| 489 | status << "pmerror:" << list[1] |
| 490 | << ":" << (PackagesDone/float(PackagesTotal)*100.0) |
| 491 | << ":" << list[3] |
| 492 | << endl; |
| 493 | if(OutStatusFd > 0) |
| 494 | write(OutStatusFd, status.str().c_str(), status.str().size()); |
| 495 | if (Debug == true) |
| 496 | std::clog << "send: '" << status.str() << "'" << endl; |
| 497 | pkgFailures++; |
| 498 | WriteApportReport(list[1], list[3]); |
| 499 | return; |
| 500 | } |
| 501 | else if(strncmp(action,"conffile",strlen("conffile")) == 0) |
| 502 | { |
| 503 | status << "pmconffile:" << list[1] |
| 504 | << ":" << (PackagesDone/float(PackagesTotal)*100.0) |
| 505 | << ":" << list[3] |
| 506 | << endl; |
| 507 | if(OutStatusFd > 0) |
| 508 | write(OutStatusFd, status.str().c_str(), status.str().size()); |
| 509 | if (Debug == true) |
| 510 | std::clog << "send: '" << status.str() << "'" << endl; |
| 511 | return; |
| 512 | } |
| 513 | |
| 514 | vector<struct DpkgState> const &states = PackageOps[pkg]; |
| 515 | const char *next_action = NULL; |
| 516 | if(PackageOpsDone[pkg] < states.size()) |
| 517 | next_action = states[PackageOpsDone[pkg]].state; |
| 518 | // check if the package moved to the next dpkg state |
| 519 | if(next_action && (strcmp(action, next_action) == 0)) |
| 520 | { |
| 521 | // only read the translation if there is actually a next |
| 522 | // action |
| 523 | const char *translation = _(states[PackageOpsDone[pkg]].str); |
| 524 | char s[200]; |
| 525 | snprintf(s, sizeof(s), translation, pkg); |
| 526 | |
| 527 | // we moved from one dpkg state to a new one, report that |
| 528 | PackageOpsDone[pkg]++; |
| 529 | PackagesDone++; |
| 530 | // build the status str |
| 531 | status << "pmstatus:" << pkg |
| 532 | << ":" << (PackagesDone/float(PackagesTotal)*100.0) |
| 533 | << ":" << s |
| 534 | << endl; |
| 535 | if(OutStatusFd > 0) |
| 536 | write(OutStatusFd, status.str().c_str(), status.str().size()); |
| 537 | if (Debug == true) |
| 538 | std::clog << "send: '" << status.str() << "'" << endl; |
| 539 | } |
| 540 | if (Debug == true) |
| 541 | std::clog << "(parsed from dpkg) pkg: " << pkg |
| 542 | << " action: " << action << endl; |
| 543 | } |
| 544 | /*}}}*/ |
| 545 | // DPkgPM::handleDisappearAction /*{{{*/ |
| 546 | void pkgDPkgPM::handleDisappearAction(string const &pkgname) |
| 547 | { |
| 548 | // record the package name for display and stuff later |
| 549 | disappearedPkgs.insert(pkgname); |
| 550 | |
| 551 | pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname); |
| 552 | if (unlikely(Pkg.end() == true)) |
| 553 | return; |
| 554 | // the disappeared package was auto-installed - nothing to do |
| 555 | if ((Cache[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) |
| 556 | return; |
| 557 | pkgCache::VerIterator PkgVer = Pkg.CurrentVer(); |
| 558 | if (unlikely(PkgVer.end() == true)) |
| 559 | return; |
| 560 | /* search in the list of dependencies for (Pre)Depends, |
| 561 | check if this dependency has a Replaces on our package |
| 562 | and if so transfer the manual installed flag to it */ |
| 563 | for (pkgCache::DepIterator Dep = PkgVer.DependsList(); Dep.end() != true; ++Dep) |
| 564 | { |
| 565 | if (Dep->Type != pkgCache::Dep::Depends && |
| 566 | Dep->Type != pkgCache::Dep::PreDepends) |
| 567 | continue; |
| 568 | pkgCache::PkgIterator Tar = Dep.TargetPkg(); |
| 569 | if (unlikely(Tar.end() == true)) |
| 570 | continue; |
| 571 | // the package is already marked as manual |
| 572 | if ((Cache[Tar].Flags & pkgCache::Flag::Auto) != pkgCache::Flag::Auto) |
| 573 | continue; |
| 574 | pkgCache::VerIterator TarVer = Tar.CurrentVer(); |
| 575 | for (pkgCache::DepIterator Rep = TarVer.DependsList(); Rep.end() != true; ++Rep) |
| 576 | { |
| 577 | if (Rep->Type != pkgCache::Dep::Replaces) |
| 578 | continue; |
| 579 | if (Pkg != Rep.TargetPkg()) |
| 580 | continue; |
| 581 | // okay, they are strongly connected - transfer manual-bit |
| 582 | if (Debug == true) |
| 583 | std::clog << "transfer manual-bit from disappeared »" << pkgname << "« to »" << Tar.FullName() << "«" << std::endl; |
| 584 | Cache[Tar].Flags &= ~Flag::Auto; |
| 585 | break; |
| 586 | } |
| 587 | } |
| 588 | } |
| 589 | /*}}}*/ |
| 590 | // DPkgPM::DoDpkgStatusFd /*{{{*/ |
| 591 | // --------------------------------------------------------------------- |
| 592 | /* |
| 593 | */ |
| 594 | void pkgDPkgPM::DoDpkgStatusFd(int statusfd, int OutStatusFd) |
| 595 | { |
| 596 | char *p, *q; |
| 597 | int len; |
| 598 | |
| 599 | len=read(statusfd, &dpkgbuf[dpkgbuf_pos], sizeof(dpkgbuf)-dpkgbuf_pos); |
| 600 | dpkgbuf_pos += len; |
| 601 | if(len <= 0) |
| 602 | return; |
| 603 | |
| 604 | // process line by line if we have a buffer |
| 605 | p = q = dpkgbuf; |
| 606 | while((q=(char*)memchr(p, '\n', dpkgbuf+dpkgbuf_pos-p)) != NULL) |
| 607 | { |
| 608 | *q = 0; |
| 609 | ProcessDpkgStatusLine(OutStatusFd, p); |
| 610 | p=q+1; // continue with next line |
| 611 | } |
| 612 | |
| 613 | // now move the unprocessed bits (after the final \n that is now a 0x0) |
| 614 | // to the start and update dpkgbuf_pos |
| 615 | p = (char*)memrchr(dpkgbuf, 0, dpkgbuf_pos); |
| 616 | if(p == NULL) |
| 617 | return; |
| 618 | |
| 619 | // we are interessted in the first char *after* 0x0 |
| 620 | p++; |
| 621 | |
| 622 | // move the unprocessed tail to the start and update pos |
| 623 | memmove(dpkgbuf, p, p-dpkgbuf); |
| 624 | dpkgbuf_pos = dpkgbuf+dpkgbuf_pos-p; |
| 625 | } |
| 626 | /*}}}*/ |
| 627 | // DPkgPM::WriteHistoryTag /*{{{*/ |
| 628 | void pkgDPkgPM::WriteHistoryTag(string const &tag, string value) |
| 629 | { |
| 630 | size_t const length = value.length(); |
| 631 | if (length == 0) |
| 632 | return; |
| 633 | // poor mans rstrip(", ") |
| 634 | if (value[length-2] == ',' && value[length-1] == ' ') |
| 635 | value.erase(length - 2, 2); |
| 636 | fprintf(history_out, "%s: %s\n", tag.c_str(), value.c_str()); |
| 637 | } /*}}}*/ |
| 638 | // DPkgPM::OpenLog /*{{{*/ |
| 639 | bool pkgDPkgPM::OpenLog() |
| 640 | { |
| 641 | string const logdir = _config->FindDir("Dir::Log"); |
| 642 | if(not FileExists(logdir)) |
| 643 | return _error->Error(_("Directory '%s' missing"), logdir.c_str()); |
| 644 | |
| 645 | // get current time |
| 646 | char timestr[200]; |
| 647 | time_t const t = time(NULL); |
| 648 | struct tm const * const tmp = localtime(&t); |
| 649 | strftime(timestr, sizeof(timestr), "%F %T", tmp); |
| 650 | |
| 651 | // open terminal log |
| 652 | string const logfile_name = flCombine(logdir, |
| 653 | _config->Find("Dir::Log::Terminal")); |
| 654 | if (!logfile_name.empty()) |
| 655 | { |
| 656 | term_out = fopen(logfile_name.c_str(),"a"); |
| 657 | if (term_out == NULL) |
| 658 | return _error->WarningE("OpenLog", _("Could not open file '%s'"), logfile_name.c_str()); |
| 659 | setvbuf(term_out, NULL, _IONBF, 0); |
| 660 | chmod(logfile_name.c_str(), 0600); |
| 661 | fprintf(term_out, "\nLog started: %s\n", timestr); |
| 662 | } |
| 663 | |
| 664 | // write your history |
| 665 | string const history_name = flCombine(logdir, |
| 666 | _config->Find("Dir::Log::History")); |
| 667 | if (!history_name.empty()) |
| 668 | { |
| 669 | history_out = fopen(history_name.c_str(),"a"); |
| 670 | if (history_out == NULL) |
| 671 | return _error->WarningE("OpenLog", _("Could not open file '%s'"), history_name.c_str()); |
| 672 | chmod(history_name.c_str(), 0644); |
| 673 | fprintf(history_out, "\nStart-Date: %s\n", timestr); |
| 674 | string remove, purge, install, upgrade, downgrade; |
| 675 | for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) |
| 676 | { |
| 677 | if (Cache[I].NewInstall()) |
| 678 | { |
| 679 | install += I.FullName(false) + string(" (") + Cache[I].CandVersion; |
| 680 | if (Cache[I].Flags & pkgCache::Flag::Auto) |
| 681 | install+= ", automatic"; |
| 682 | install += string("), "); |
| 683 | } |
| 684 | else if (Cache[I].Upgrade()) |
| 685 | upgrade += I.FullName(false) + string(" (") + Cache[I].CurVersion + string(", ") + Cache[I].CandVersion + string("), "); |
| 686 | else if (Cache[I].Downgrade()) |
| 687 | downgrade += I.FullName(false) + string(" (") + Cache[I].CurVersion + string(", ") + Cache[I].CandVersion + string("), "); |
| 688 | else if (Cache[I].Delete()) |
| 689 | { |
| 690 | if ((Cache[I].iFlags & pkgDepCache::Purge) == pkgDepCache::Purge) |
| 691 | purge += I.FullName(false) + string(" (") + Cache[I].CurVersion + string("), "); |
| 692 | else |
| 693 | remove += I.FullName(false) + string(" (") + Cache[I].CurVersion + string("), "); |
| 694 | } |
| 695 | } |
| 696 | if (_config->Exists("Commandline::AsString") == true) |
| 697 | WriteHistoryTag("Commandline", _config->Find("Commandline::AsString")); |
| 698 | WriteHistoryTag("Install", install); |
| 699 | WriteHistoryTag("Upgrade", upgrade); |
| 700 | WriteHistoryTag("Downgrade",downgrade); |
| 701 | WriteHistoryTag("Remove",remove); |
| 702 | WriteHistoryTag("Purge",purge); |
| 703 | fflush(history_out); |
| 704 | } |
| 705 | |
| 706 | return true; |
| 707 | } |
| 708 | /*}}}*/ |
| 709 | // DPkg::CloseLog /*{{{*/ |
| 710 | bool pkgDPkgPM::CloseLog() |
| 711 | { |
| 712 | char timestr[200]; |
| 713 | time_t t = time(NULL); |
| 714 | struct tm *tmp = localtime(&t); |
| 715 | strftime(timestr, sizeof(timestr), "%F %T", tmp); |
| 716 | |
| 717 | if(term_out) |
| 718 | { |
| 719 | fprintf(term_out, "Log ended: "); |
| 720 | fprintf(term_out, "%s", timestr); |
| 721 | fprintf(term_out, "\n"); |
| 722 | fclose(term_out); |
| 723 | } |
| 724 | term_out = NULL; |
| 725 | |
| 726 | if(history_out) |
| 727 | { |
| 728 | if (disappearedPkgs.empty() == false) |
| 729 | { |
| 730 | string disappear; |
| 731 | for (std::set<std::string>::const_iterator d = disappearedPkgs.begin(); |
| 732 | d != disappearedPkgs.end(); ++d) |
| 733 | { |
| 734 | pkgCache::PkgIterator P = Cache.FindPkg(*d); |
| 735 | disappear.append(*d); |
| 736 | if (P.end() == true) |
| 737 | disappear.append(", "); |
| 738 | else |
| 739 | disappear.append(" (").append(Cache[P].CurVersion).append("), "); |
| 740 | } |
| 741 | WriteHistoryTag("Disappeared", disappear); |
| 742 | } |
| 743 | if (dpkg_error.empty() == false) |
| 744 | fprintf(history_out, "Error: %s\n", dpkg_error.c_str()); |
| 745 | fprintf(history_out, "End-Date: %s\n", timestr); |
| 746 | fclose(history_out); |
| 747 | } |
| 748 | history_out = NULL; |
| 749 | |
| 750 | return true; |
| 751 | } |
| 752 | /*}}}*/ |
| 753 | /*{{{*/ |
| 754 | // This implements a racy version of pselect for those architectures |
| 755 | // that don't have a working implementation. |
| 756 | // FIXME: Probably can be removed on Lenny+1 |
| 757 | static int racy_pselect(int nfds, fd_set *readfds, fd_set *writefds, |
| 758 | fd_set *exceptfds, const struct timespec *timeout, |
| 759 | const sigset_t *sigmask) |
| 760 | { |
| 761 | sigset_t origmask; |
| 762 | struct timeval tv; |
| 763 | int retval; |
| 764 | |
| 765 | tv.tv_sec = timeout->tv_sec; |
| 766 | tv.tv_usec = timeout->tv_nsec/1000; |
| 767 | |
| 768 | sigprocmask(SIG_SETMASK, sigmask, &origmask); |
| 769 | retval = select(nfds, readfds, writefds, exceptfds, &tv); |
| 770 | sigprocmask(SIG_SETMASK, &origmask, 0); |
| 771 | return retval; |
| 772 | } |
| 773 | /*}}}*/ |
| 774 | // DPkgPM::Go - Run the sequence /*{{{*/ |
| 775 | // --------------------------------------------------------------------- |
| 776 | /* This globs the operations and calls dpkg |
| 777 | * |
| 778 | * If it is called with "OutStatusFd" set to a valid file descriptor |
| 779 | * apt will report the install progress over this fd. It maps the |
| 780 | * dpkg states a package goes through to human readable (and i10n-able) |
| 781 | * names and calculates a percentage for each step. |
| 782 | */ |
| 783 | bool pkgDPkgPM::Go(int OutStatusFd) |
| 784 | { |
| 785 | fd_set rfds; |
| 786 | struct timespec tv; |
| 787 | sigset_t sigmask; |
| 788 | sigset_t original_sigmask; |
| 789 | |
| 790 | unsigned int const MaxArgs = _config->FindI("Dpkg::MaxArgs",8*1024); |
| 791 | unsigned int const MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes",32*1024); |
| 792 | bool const NoTriggers = _config->FindB("DPkg::NoTriggers", false); |
| 793 | |
| 794 | if (RunScripts("DPkg::Pre-Invoke") == false) |
| 795 | return false; |
| 796 | |
| 797 | if (RunScriptsWithPkgs("DPkg::Pre-Install-Pkgs") == false) |
| 798 | return false; |
| 799 | |
| 800 | // support subpressing of triggers processing for special |
| 801 | // cases like d-i that runs the triggers handling manually |
| 802 | bool const SmartConf = (_config->Find("PackageManager::Configure", "all") != "all"); |
| 803 | bool const TriggersPending = _config->FindB("DPkg::TriggersPending", false); |
| 804 | if (_config->FindB("DPkg::ConfigurePending", SmartConf) == true) |
| 805 | List.push_back(Item(Item::ConfigurePending, PkgIterator())); |
| 806 | |
| 807 | // map the dpkg states to the operations that are performed |
| 808 | // (this is sorted in the same way as Item::Ops) |
| 809 | static const struct DpkgState DpkgStatesOpMap[][7] = { |
| 810 | // Install operation |
| 811 | { |
| 812 | {"half-installed", N_("Preparing %s")}, |
| 813 | {"unpacked", N_("Unpacking %s") }, |
| 814 | {NULL, NULL} |
| 815 | }, |
| 816 | // Configure operation |
| 817 | { |
| 818 | {"unpacked",N_("Preparing to configure %s") }, |
| 819 | {"half-configured", N_("Configuring %s") }, |
| 820 | { "installed", N_("Installed %s")}, |
| 821 | {NULL, NULL} |
| 822 | }, |
| 823 | // Remove operation |
| 824 | { |
| 825 | {"half-configured", N_("Preparing for removal of %s")}, |
| 826 | {"half-installed", N_("Removing %s")}, |
| 827 | {"config-files", N_("Removed %s")}, |
| 828 | {NULL, NULL} |
| 829 | }, |
| 830 | // Purge operation |
| 831 | { |
| 832 | {"config-files", N_("Preparing to completely remove %s")}, |
| 833 | {"not-installed", N_("Completely removed %s")}, |
| 834 | {NULL, NULL} |
| 835 | }, |
| 836 | }; |
| 837 | |
| 838 | // init the PackageOps map, go over the list of packages that |
| 839 | // that will be [installed|configured|removed|purged] and add |
| 840 | // them to the PackageOps map (the dpkg states it goes through) |
| 841 | // and the PackageOpsTranslations (human readable strings) |
| 842 | for (vector<Item>::const_iterator I = List.begin(); I != List.end();I++) |
| 843 | { |
| 844 | if((*I).Pkg.end() == true) |
| 845 | continue; |
| 846 | |
| 847 | string const name = (*I).Pkg.Name(); |
| 848 | PackageOpsDone[name] = 0; |
| 849 | for(int i=0; (DpkgStatesOpMap[(*I).Op][i]).state != NULL; i++) |
| 850 | { |
| 851 | PackageOps[name].push_back(DpkgStatesOpMap[(*I).Op][i]); |
| 852 | PackagesTotal++; |
| 853 | } |
| 854 | } |
| 855 | |
| 856 | stdin_is_dev_null = false; |
| 857 | |
| 858 | // create log |
| 859 | OpenLog(); |
| 860 | |
| 861 | // this loop is runs once per operation |
| 862 | for (vector<Item>::const_iterator I = List.begin(); I != List.end();) |
| 863 | { |
| 864 | // Do all actions with the same Op in one run |
| 865 | vector<Item>::const_iterator J = I; |
| 866 | if (TriggersPending == true) |
| 867 | for (; J != List.end(); J++) |
| 868 | { |
| 869 | if (J->Op == I->Op) |
| 870 | continue; |
| 871 | if (J->Op != Item::TriggersPending) |
| 872 | break; |
| 873 | vector<Item>::const_iterator T = J + 1; |
| 874 | if (T != List.end() && T->Op == I->Op) |
| 875 | continue; |
| 876 | break; |
| 877 | } |
| 878 | else |
| 879 | for (; J != List.end() && J->Op == I->Op; J++) |
| 880 | /* nothing */; |
| 881 | |
| 882 | // Generate the argument list |
| 883 | const char *Args[MaxArgs + 50]; |
| 884 | |
| 885 | // Now check if we are within the MaxArgs limit |
| 886 | // |
| 887 | // this code below is problematic, because it may happen that |
| 888 | // the argument list is split in a way that A depends on B |
| 889 | // and they are in the same "--configure A B" run |
| 890 | // - with the split they may now be configured in different |
| 891 | // runs |
| 892 | if (J - I > (signed)MaxArgs) |
| 893 | J = I + MaxArgs; |
| 894 | |
| 895 | unsigned int n = 0; |
| 896 | unsigned long Size = 0; |
| 897 | string const Tmp = _config->Find("Dir::Bin::dpkg","dpkg"); |
| 898 | Args[n++] = Tmp.c_str(); |
| 899 | Size += strlen(Args[n-1]); |
| 900 | |
| 901 | // Stick in any custom dpkg options |
| 902 | Configuration::Item const *Opts = _config->Tree("DPkg::Options"); |
| 903 | if (Opts != 0) |
| 904 | { |
| 905 | Opts = Opts->Child; |
| 906 | for (; Opts != 0; Opts = Opts->Next) |
| 907 | { |
| 908 | if (Opts->Value.empty() == true) |
| 909 | continue; |
| 910 | Args[n++] = Opts->Value.c_str(); |
| 911 | Size += Opts->Value.length(); |
| 912 | } |
| 913 | } |
| 914 | |
| 915 | char status_fd_buf[20]; |
| 916 | int fd[2]; |
| 917 | pipe(fd); |
| 918 | |
| 919 | Args[n++] = "--status-fd"; |
| 920 | Size += strlen(Args[n-1]); |
| 921 | snprintf(status_fd_buf,sizeof(status_fd_buf),"%i", fd[1]); |
| 922 | Args[n++] = status_fd_buf; |
| 923 | Size += strlen(Args[n-1]); |
| 924 | |
| 925 | switch (I->Op) |
| 926 | { |
| 927 | case Item::Remove: |
| 928 | Args[n++] = "--force-depends"; |
| 929 | Size += strlen(Args[n-1]); |
| 930 | Args[n++] = "--force-remove-essential"; |
| 931 | Size += strlen(Args[n-1]); |
| 932 | Args[n++] = "--remove"; |
| 933 | Size += strlen(Args[n-1]); |
| 934 | break; |
| 935 | |
| 936 | case Item::Purge: |
| 937 | Args[n++] = "--force-depends"; |
| 938 | Size += strlen(Args[n-1]); |
| 939 | Args[n++] = "--force-remove-essential"; |
| 940 | Size += strlen(Args[n-1]); |
| 941 | Args[n++] = "--purge"; |
| 942 | Size += strlen(Args[n-1]); |
| 943 | break; |
| 944 | |
| 945 | case Item::Configure: |
| 946 | Args[n++] = "--configure"; |
| 947 | Size += strlen(Args[n-1]); |
| 948 | break; |
| 949 | |
| 950 | case Item::ConfigurePending: |
| 951 | Args[n++] = "--configure"; |
| 952 | Size += strlen(Args[n-1]); |
| 953 | Args[n++] = "--pending"; |
| 954 | Size += strlen(Args[n-1]); |
| 955 | break; |
| 956 | |
| 957 | case Item::TriggersPending: |
| 958 | Args[n++] = "--triggers-only"; |
| 959 | Size += strlen(Args[n-1]); |
| 960 | Args[n++] = "--pending"; |
| 961 | Size += strlen(Args[n-1]); |
| 962 | break; |
| 963 | |
| 964 | case Item::Install: |
| 965 | Args[n++] = "--unpack"; |
| 966 | Size += strlen(Args[n-1]); |
| 967 | Args[n++] = "--auto-deconfigure"; |
| 968 | Size += strlen(Args[n-1]); |
| 969 | break; |
| 970 | } |
| 971 | |
| 972 | if (NoTriggers == true && I->Op != Item::TriggersPending && |
| 973 | I->Op != Item::ConfigurePending) |
| 974 | { |
| 975 | Args[n++] = "--no-triggers"; |
| 976 | Size += strlen(Args[n-1]); |
| 977 | } |
| 978 | |
| 979 | // Write in the file or package names |
| 980 | if (I->Op == Item::Install) |
| 981 | { |
| 982 | for (;I != J && Size < MaxArgBytes; I++) |
| 983 | { |
| 984 | if (I->File[0] != '/') |
| 985 | return _error->Error("Internal Error, Pathname to install is not absolute '%s'",I->File.c_str()); |
| 986 | Args[n++] = I->File.c_str(); |
| 987 | Size += strlen(Args[n-1]); |
| 988 | } |
| 989 | } |
| 990 | else |
| 991 | { |
| 992 | for (;I != J && Size < MaxArgBytes; I++) |
| 993 | { |
| 994 | if((*I).Pkg.end() == true) |
| 995 | continue; |
| 996 | if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.Name()) != disappearedPkgs.end()) |
| 997 | continue; |
| 998 | Args[n++] = I->Pkg.Name(); |
| 999 | Size += strlen(Args[n-1]); |
| 1000 | } |
| 1001 | } |
| 1002 | Args[n] = 0; |
| 1003 | J = I; |
| 1004 | |
| 1005 | if (_config->FindB("Debug::pkgDPkgPM",false) == true) |
| 1006 | { |
| 1007 | for (unsigned int k = 0; k != n; k++) |
| 1008 | clog << Args[k] << ' '; |
| 1009 | clog << endl; |
| 1010 | continue; |
| 1011 | } |
| 1012 | |
| 1013 | cout << flush; |
| 1014 | clog << flush; |
| 1015 | cerr << flush; |
| 1016 | |
| 1017 | /* Mask off sig int/quit. We do this because dpkg also does when |
| 1018 | it forks scripts. What happens is that when you hit ctrl-c it sends |
| 1019 | it to all processes in the group. Since dpkg ignores the signal |
| 1020 | it doesn't die but we do! So we must also ignore it */ |
| 1021 | sighandler_t old_SIGQUIT = signal(SIGQUIT,SIG_IGN); |
| 1022 | sighandler_t old_SIGINT = signal(SIGINT,SIG_IGN); |
| 1023 | |
| 1024 | // ignore SIGHUP as well (debian #463030) |
| 1025 | sighandler_t old_SIGHUP = signal(SIGHUP,SIG_IGN); |
| 1026 | |
| 1027 | struct termios tt; |
| 1028 | struct winsize win; |
| 1029 | int master = -1; |
| 1030 | int slave = -1; |
| 1031 | |
| 1032 | // if tcgetattr does not return zero there was a error |
| 1033 | // and we do not do any pty magic |
| 1034 | if (tcgetattr(0, &tt) == 0) |
| 1035 | { |
| 1036 | ioctl(0, TIOCGWINSZ, (char *)&win); |
| 1037 | if (openpty(&master, &slave, NULL, &tt, &win) < 0) |
| 1038 | { |
| 1039 | const char *s = _("Can not write log, openpty() " |
| 1040 | "failed (/dev/pts not mounted?)\n"); |
| 1041 | fprintf(stderr, "%s",s); |
| 1042 | if(term_out) |
| 1043 | fprintf(term_out, "%s",s); |
| 1044 | master = slave = -1; |
| 1045 | } else { |
| 1046 | struct termios rtt; |
| 1047 | rtt = tt; |
| 1048 | cfmakeraw(&rtt); |
| 1049 | rtt.c_lflag &= ~ECHO; |
| 1050 | rtt.c_lflag |= ISIG; |
| 1051 | // block SIGTTOU during tcsetattr to prevent a hang if |
| 1052 | // the process is a member of the background process group |
| 1053 | // http://www.opengroup.org/onlinepubs/000095399/functions/tcsetattr.html |
| 1054 | sigemptyset(&sigmask); |
| 1055 | sigaddset(&sigmask, SIGTTOU); |
| 1056 | sigprocmask(SIG_BLOCK,&sigmask, &original_sigmask); |
| 1057 | tcsetattr(0, TCSAFLUSH, &rtt); |
| 1058 | sigprocmask(SIG_SETMASK, &original_sigmask, 0); |
| 1059 | } |
| 1060 | } |
| 1061 | |
| 1062 | // Fork dpkg |
| 1063 | pid_t Child; |
| 1064 | _config->Set("APT::Keep-Fds::",fd[1]); |
| 1065 | // send status information that we are about to fork dpkg |
| 1066 | if(OutStatusFd > 0) { |
| 1067 | ostringstream status; |
| 1068 | status << "pmstatus:dpkg-exec:" |
| 1069 | << (PackagesDone/float(PackagesTotal)*100.0) |
| 1070 | << ":" << _("Running dpkg") |
| 1071 | << endl; |
| 1072 | write(OutStatusFd, status.str().c_str(), status.str().size()); |
| 1073 | } |
| 1074 | Child = ExecFork(); |
| 1075 | |
| 1076 | // This is the child |
| 1077 | if (Child == 0) |
| 1078 | { |
| 1079 | if(slave >= 0 && master >= 0) |
| 1080 | { |
| 1081 | setsid(); |
| 1082 | ioctl(slave, TIOCSCTTY, 0); |
| 1083 | close(master); |
| 1084 | dup2(slave, 0); |
| 1085 | dup2(slave, 1); |
| 1086 | dup2(slave, 2); |
| 1087 | close(slave); |
| 1088 | } |
| 1089 | close(fd[0]); // close the read end of the pipe |
| 1090 | |
| 1091 | if (_config->FindDir("DPkg::Chroot-Directory","/") != "/") |
| 1092 | { |
| 1093 | std::cerr << "Chrooting into " |
| 1094 | << _config->FindDir("DPkg::Chroot-Directory") |
| 1095 | << std::endl; |
| 1096 | if (chroot(_config->FindDir("DPkg::Chroot-Directory","/").c_str()) != 0) |
| 1097 | _exit(100); |
| 1098 | } |
| 1099 | |
| 1100 | if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0) |
| 1101 | _exit(100); |
| 1102 | |
| 1103 | if (_config->FindB("DPkg::FlushSTDIN",true) == true && isatty(STDIN_FILENO)) |
| 1104 | { |
| 1105 | int Flags,dummy; |
| 1106 | if ((Flags = fcntl(STDIN_FILENO,F_GETFL,dummy)) < 0) |
| 1107 | _exit(100); |
| 1108 | |
| 1109 | // Discard everything in stdin before forking dpkg |
| 1110 | if (fcntl(STDIN_FILENO,F_SETFL,Flags | O_NONBLOCK) < 0) |
| 1111 | _exit(100); |
| 1112 | |
| 1113 | while (read(STDIN_FILENO,&dummy,1) == 1); |
| 1114 | |
| 1115 | if (fcntl(STDIN_FILENO,F_SETFL,Flags & (~(long)O_NONBLOCK)) < 0) |
| 1116 | _exit(100); |
| 1117 | } |
| 1118 | |
| 1119 | /* No Job Control Stop Env is a magic dpkg var that prevents it |
| 1120 | from using sigstop */ |
| 1121 | putenv((char *)"DPKG_NO_TSTP=yes"); |
| 1122 | execvp(Args[0],(char **)Args); |
| 1123 | cerr << "Could not exec dpkg!" << endl; |
| 1124 | _exit(100); |
| 1125 | } |
| 1126 | |
| 1127 | // apply ionice |
| 1128 | if (_config->FindB("DPkg::UseIoNice", false) == true) |
| 1129 | ionice(Child); |
| 1130 | |
| 1131 | // clear the Keep-Fd again |
| 1132 | _config->Clear("APT::Keep-Fds",fd[1]); |
| 1133 | |
| 1134 | // Wait for dpkg |
| 1135 | int Status = 0; |
| 1136 | |
| 1137 | // we read from dpkg here |
| 1138 | int const _dpkgin = fd[0]; |
| 1139 | close(fd[1]); // close the write end of the pipe |
| 1140 | |
| 1141 | if(slave > 0) |
| 1142 | close(slave); |
| 1143 | |
| 1144 | // setups fds |
| 1145 | sigemptyset(&sigmask); |
| 1146 | sigprocmask(SIG_BLOCK,&sigmask,&original_sigmask); |
| 1147 | |
| 1148 | // the result of the waitpid call |
| 1149 | int res; |
| 1150 | int select_ret; |
| 1151 | while ((res=waitpid(Child,&Status, WNOHANG)) != Child) { |
| 1152 | if(res < 0) { |
| 1153 | // FIXME: move this to a function or something, looks ugly here |
| 1154 | // error handling, waitpid returned -1 |
| 1155 | if (errno == EINTR) |
| 1156 | continue; |
| 1157 | RunScripts("DPkg::Post-Invoke"); |
| 1158 | |
| 1159 | // Restore sig int/quit |
| 1160 | signal(SIGQUIT,old_SIGQUIT); |
| 1161 | signal(SIGINT,old_SIGINT); |
| 1162 | signal(SIGHUP,old_SIGHUP); |
| 1163 | return _error->Errno("waitpid","Couldn't wait for subprocess"); |
| 1164 | } |
| 1165 | |
| 1166 | // wait for input or output here |
| 1167 | FD_ZERO(&rfds); |
| 1168 | if (master >= 0 && !stdin_is_dev_null) |
| 1169 | FD_SET(0, &rfds); |
| 1170 | FD_SET(_dpkgin, &rfds); |
| 1171 | if(master >= 0) |
| 1172 | FD_SET(master, &rfds); |
| 1173 | tv.tv_sec = 1; |
| 1174 | tv.tv_nsec = 0; |
| 1175 | select_ret = pselect(max(master, _dpkgin)+1, &rfds, NULL, NULL, |
| 1176 | &tv, &original_sigmask); |
| 1177 | if (select_ret < 0 && (errno == EINVAL || errno == ENOSYS)) |
| 1178 | select_ret = racy_pselect(max(master, _dpkgin)+1, &rfds, NULL, |
| 1179 | NULL, &tv, &original_sigmask); |
| 1180 | if (select_ret == 0) |
| 1181 | continue; |
| 1182 | else if (select_ret < 0 && errno == EINTR) |
| 1183 | continue; |
| 1184 | else if (select_ret < 0) |
| 1185 | { |
| 1186 | perror("select() returned error"); |
| 1187 | continue; |
| 1188 | } |
| 1189 | |
| 1190 | if(master >= 0 && FD_ISSET(master, &rfds)) |
| 1191 | DoTerminalPty(master); |
| 1192 | if(master >= 0 && FD_ISSET(0, &rfds)) |
| 1193 | DoStdin(master); |
| 1194 | if(FD_ISSET(_dpkgin, &rfds)) |
| 1195 | DoDpkgStatusFd(_dpkgin, OutStatusFd); |
| 1196 | } |
| 1197 | close(_dpkgin); |
| 1198 | |
| 1199 | // Restore sig int/quit |
| 1200 | signal(SIGQUIT,old_SIGQUIT); |
| 1201 | signal(SIGINT,old_SIGINT); |
| 1202 | signal(SIGHUP,old_SIGHUP); |
| 1203 | |
| 1204 | if(master >= 0) |
| 1205 | { |
| 1206 | tcsetattr(0, TCSAFLUSH, &tt); |
| 1207 | close(master); |
| 1208 | } |
| 1209 | |
| 1210 | // Check for an error code. |
| 1211 | if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0) |
| 1212 | { |
| 1213 | // if it was set to "keep-dpkg-runing" then we won't return |
| 1214 | // here but keep the loop going and just report it as a error |
| 1215 | // for later |
| 1216 | bool const stopOnError = _config->FindB("Dpkg::StopOnError",true); |
| 1217 | |
| 1218 | if(stopOnError) |
| 1219 | RunScripts("DPkg::Post-Invoke"); |
| 1220 | |
| 1221 | if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV) |
| 1222 | strprintf(dpkg_error, "Sub-process %s received a segmentation fault.",Args[0]); |
| 1223 | else if (WIFEXITED(Status) != 0) |
| 1224 | strprintf(dpkg_error, "Sub-process %s returned an error code (%u)",Args[0],WEXITSTATUS(Status)); |
| 1225 | else |
| 1226 | strprintf(dpkg_error, "Sub-process %s exited unexpectedly",Args[0]); |
| 1227 | |
| 1228 | if(dpkg_error.size() > 0) |
| 1229 | _error->Error(dpkg_error.c_str()); |
| 1230 | |
| 1231 | if(stopOnError) |
| 1232 | { |
| 1233 | CloseLog(); |
| 1234 | return false; |
| 1235 | } |
| 1236 | } |
| 1237 | } |
| 1238 | CloseLog(); |
| 1239 | |
| 1240 | if (RunScripts("DPkg::Post-Invoke") == false) |
| 1241 | return false; |
| 1242 | |
| 1243 | Cache.writeStateFile(NULL); |
| 1244 | return true; |
| 1245 | } |
| 1246 | /*}}}*/ |
| 1247 | // pkgDpkgPM::Reset - Dump the contents of the command list /*{{{*/ |
| 1248 | // --------------------------------------------------------------------- |
| 1249 | /* */ |
| 1250 | void pkgDPkgPM::Reset() |
| 1251 | { |
| 1252 | List.erase(List.begin(),List.end()); |
| 1253 | } |
| 1254 | /*}}}*/ |
| 1255 | // pkgDpkgPM::WriteApportReport - write out error report pkg failure /*{{{*/ |
| 1256 | // --------------------------------------------------------------------- |
| 1257 | /* */ |
| 1258 | void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg) |
| 1259 | { |
| 1260 | string pkgname, reportfile, srcpkgname, pkgver, arch; |
| 1261 | string::size_type pos; |
| 1262 | FILE *report; |
| 1263 | |
| 1264 | if (_config->FindB("Dpkg::ApportFailureReport", false) == false) |
| 1265 | { |
| 1266 | std::clog << "configured to not write apport reports" << std::endl; |
| 1267 | return; |
| 1268 | } |
| 1269 | |
| 1270 | // only report the first errors |
| 1271 | if(pkgFailures > _config->FindI("APT::Apport::MaxReports", 3)) |
| 1272 | { |
| 1273 | std::clog << _("No apport report written because MaxReports is reached already") << std::endl; |
| 1274 | return; |
| 1275 | } |
| 1276 | |
| 1277 | // check if its not a follow up error |
| 1278 | const char *needle = dgettext("dpkg", "dependency problems - leaving unconfigured"); |
| 1279 | if(strstr(errormsg, needle) != NULL) { |
| 1280 | std::clog << _("No apport report written because the error message indicates its a followup error from a previous failure.") << std::endl; |
| 1281 | return; |
| 1282 | } |
| 1283 | |
| 1284 | // do not report disk-full failures |
| 1285 | if(strstr(errormsg, strerror(ENOSPC)) != NULL) { |
| 1286 | std::clog << _("No apport report written because the error message indicates a disk full error") << std::endl; |
| 1287 | return; |
| 1288 | } |
| 1289 | |
| 1290 | // do not report out-of-memory failures |
| 1291 | if(strstr(errormsg, strerror(ENOMEM)) != NULL) { |
| 1292 | std::clog << _("No apport report written because the error message indicates a out of memory error") << std::endl; |
| 1293 | return; |
| 1294 | } |
| 1295 | |
| 1296 | // do not report dpkg I/O errors |
| 1297 | // XXX - this message is localized, but this only matches the English version. This is better than nothing. |
| 1298 | if(strstr(errormsg, "short read in buffer_copy (")) { |
| 1299 | std::clog << _("No apport report written because the error message indicates a dpkg I/O error") << std::endl; |
| 1300 | return; |
| 1301 | } |
| 1302 | |
| 1303 | // get the pkgname and reportfile |
| 1304 | pkgname = flNotDir(pkgpath); |
| 1305 | pos = pkgname.find('_'); |
| 1306 | if(pos != string::npos) |
| 1307 | pkgname = pkgname.substr(0, pos); |
| 1308 | |
| 1309 | // find the package versin and source package name |
| 1310 | pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname); |
| 1311 | if (Pkg.end() == true) |
| 1312 | return; |
| 1313 | pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg); |
| 1314 | if (Ver.end() == true) |
| 1315 | return; |
| 1316 | pkgver = Ver.VerStr() == NULL ? "unknown" : Ver.VerStr(); |
| 1317 | pkgRecords Recs(Cache); |
| 1318 | pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList()); |
| 1319 | srcpkgname = Parse.SourcePkg(); |
| 1320 | if(srcpkgname.empty()) |
| 1321 | srcpkgname = pkgname; |
| 1322 | |
| 1323 | // if the file exists already, we check: |
| 1324 | // - if it was reported already (touched by apport). |
| 1325 | // If not, we do nothing, otherwise |
| 1326 | // we overwrite it. This is the same behaviour as apport |
| 1327 | // - if we have a report with the same pkgversion already |
| 1328 | // then we skip it |
| 1329 | reportfile = flCombine("/var/crash",pkgname+".0.crash"); |
| 1330 | if(FileExists(reportfile)) |
| 1331 | { |
| 1332 | struct stat buf; |
| 1333 | char strbuf[255]; |
| 1334 | |
| 1335 | // check atime/mtime |
| 1336 | stat(reportfile.c_str(), &buf); |
| 1337 | if(buf.st_mtime > buf.st_atime) |
| 1338 | return; |
| 1339 | |
| 1340 | // check if the existing report is the same version |
| 1341 | report = fopen(reportfile.c_str(),"r"); |
| 1342 | while(fgets(strbuf, sizeof(strbuf), report) != NULL) |
| 1343 | { |
| 1344 | if(strstr(strbuf,"Package:") == strbuf) |
| 1345 | { |
| 1346 | char pkgname[255], version[255]; |
| 1347 | if(sscanf(strbuf, "Package: %s %s", pkgname, version) == 2) |
| 1348 | if(strcmp(pkgver.c_str(), version) == 0) |
| 1349 | { |
| 1350 | fclose(report); |
| 1351 | return; |
| 1352 | } |
| 1353 | } |
| 1354 | } |
| 1355 | fclose(report); |
| 1356 | } |
| 1357 | |
| 1358 | // now write the report |
| 1359 | arch = _config->Find("APT::Architecture"); |
| 1360 | report = fopen(reportfile.c_str(),"w"); |
| 1361 | if(report == NULL) |
| 1362 | return; |
| 1363 | if(_config->FindB("DPkgPM::InitialReportOnly",false) == true) |
| 1364 | chmod(reportfile.c_str(), 0); |
| 1365 | else |
| 1366 | chmod(reportfile.c_str(), 0600); |
| 1367 | fprintf(report, "ProblemType: Package\n"); |
| 1368 | fprintf(report, "Architecture: %s\n", arch.c_str()); |
| 1369 | time_t now = time(NULL); |
| 1370 | fprintf(report, "Date: %s" , ctime(&now)); |
| 1371 | fprintf(report, "Package: %s %s\n", pkgname.c_str(), pkgver.c_str()); |
| 1372 | fprintf(report, "SourcePackage: %s\n", srcpkgname.c_str()); |
| 1373 | fprintf(report, "ErrorMessage:\n %s\n", errormsg); |
| 1374 | |
| 1375 | // ensure that the log is flushed |
| 1376 | if(term_out) |
| 1377 | fflush(term_out); |
| 1378 | |
| 1379 | // attach terminal log it if we have it |
| 1380 | string logfile_name = _config->FindFile("Dir::Log::Terminal"); |
| 1381 | if (!logfile_name.empty()) |
| 1382 | { |
| 1383 | FILE *log = NULL; |
| 1384 | char buf[1024]; |
| 1385 | |
| 1386 | fprintf(report, "DpkgTerminalLog:\n"); |
| 1387 | log = fopen(logfile_name.c_str(),"r"); |
| 1388 | if(log != NULL) |
| 1389 | { |
| 1390 | while( fgets(buf, sizeof(buf), log) != NULL) |
| 1391 | fprintf(report, " %s", buf); |
| 1392 | fclose(log); |
| 1393 | } |
| 1394 | } |
| 1395 | |
| 1396 | // log the ordering |
| 1397 | const char *ops_str[] = {"Install", "Configure","Remove","Purge"}; |
| 1398 | fprintf(report, "AptOrdering:\n"); |
| 1399 | for (vector<Item>::iterator I = List.begin(); I != List.end(); I++) |
| 1400 | fprintf(report, " %s: %s\n", (*I).Pkg.Name(), ops_str[(*I).Op]); |
| 1401 | |
| 1402 | // attach dmesg log (to learn about segfaults) |
| 1403 | if (FileExists("/bin/dmesg")) |
| 1404 | { |
| 1405 | FILE *log = NULL; |
| 1406 | char buf[1024]; |
| 1407 | |
| 1408 | fprintf(report, "Dmesg:\n"); |
| 1409 | log = popen("/bin/dmesg","r"); |
| 1410 | if(log != NULL) |
| 1411 | { |
| 1412 | while( fgets(buf, sizeof(buf), log) != NULL) |
| 1413 | fprintf(report, " %s", buf); |
| 1414 | fclose(log); |
| 1415 | } |
| 1416 | } |
| 1417 | |
| 1418 | // attach df -l log (to learn about filesystem status) |
| 1419 | if (FileExists("/bin/df")) |
| 1420 | { |
| 1421 | FILE *log = NULL; |
| 1422 | char buf[1024]; |
| 1423 | |
| 1424 | fprintf(report, "Df:\n"); |
| 1425 | log = popen("/bin/df -l","r"); |
| 1426 | if(log != NULL) |
| 1427 | { |
| 1428 | while( fgets(buf, sizeof(buf), log) != NULL) |
| 1429 | fprintf(report, " %s", buf); |
| 1430 | fclose(log); |
| 1431 | } |
| 1432 | } |
| 1433 | |
| 1434 | fclose(report); |
| 1435 | |
| 1436 | } |
| 1437 | /*}}}*/ |