| 1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ |
| 3 | // $Id: fileutl.cc,v 1.42 2002/09/14 05:29:22 jgg Exp $ |
| 4 | /* ###################################################################### |
| 5 | |
| 6 | File Utilities |
| 7 | |
| 8 | CopyFile - Buffered copy of a single file |
| 9 | GetLock - dpkg compatible lock file manipulation (fcntl) |
| 10 | |
| 11 | This source is placed in the Public Domain, do with it what you will |
| 12 | It was originally written by Jason Gunthorpe <jgg@debian.org>. |
| 13 | |
| 14 | ##################################################################### */ |
| 15 | /*}}}*/ |
| 16 | // Include Files /*{{{*/ |
| 17 | #ifdef __GNUG__ |
| 18 | #pragma implementation "apt-pkg/fileutl.h" |
| 19 | #endif |
| 20 | #include <apt-pkg/fileutl.h> |
| 21 | #include <apt-pkg/error.h> |
| 22 | #include <apt-pkg/sptr.h> |
| 23 | #include <apt-pkg/configuration.h> |
| 24 | |
| 25 | #include <apti18n.h> |
| 26 | |
| 27 | #include <iostream> |
| 28 | #include <unistd.h> |
| 29 | #include <fcntl.h> |
| 30 | #include <sys/stat.h> |
| 31 | #include <sys/types.h> |
| 32 | #include <sys/time.h> |
| 33 | #include <sys/wait.h> |
| 34 | #include <signal.h> |
| 35 | #include <errno.h> |
| 36 | #include <set> |
| 37 | /*}}}*/ |
| 38 | |
| 39 | using namespace std; |
| 40 | |
| 41 | // CopyFile - Buffered copy of a file /*{{{*/ |
| 42 | // --------------------------------------------------------------------- |
| 43 | /* The caller is expected to set things so that failure causes erasure */ |
| 44 | bool CopyFile(FileFd &From,FileFd &To) |
| 45 | { |
| 46 | if (From.IsOpen() == false || To.IsOpen() == false) |
| 47 | return false; |
| 48 | |
| 49 | // Buffered copy between fds |
| 50 | SPtrArray<unsigned char> Buf = new unsigned char[64000]; |
| 51 | unsigned long Size = From.Size(); |
| 52 | while (Size != 0) |
| 53 | { |
| 54 | unsigned long ToRead = Size; |
| 55 | if (Size > 64000) |
| 56 | ToRead = 64000; |
| 57 | |
| 58 | if (From.Read(Buf,ToRead) == false || |
| 59 | To.Write(Buf,ToRead) == false) |
| 60 | return false; |
| 61 | |
| 62 | Size -= ToRead; |
| 63 | } |
| 64 | |
| 65 | return true; |
| 66 | } |
| 67 | /*}}}*/ |
| 68 | // GetLock - Gets a lock file /*{{{*/ |
| 69 | // --------------------------------------------------------------------- |
| 70 | /* This will create an empty file of the given name and lock it. Once this |
| 71 | is done all other calls to GetLock in any other process will fail with |
| 72 | -1. The return result is the fd of the file, the call should call |
| 73 | close at some time. */ |
| 74 | int GetLock(string File,bool Errors) |
| 75 | { |
| 76 | int FD = open(File.c_str(),O_RDWR | O_CREAT | O_TRUNC,0640); |
| 77 | if (FD < 0) |
| 78 | { |
| 79 | // Read only .. cant have locking problems there. |
| 80 | if (errno == EROFS) |
| 81 | { |
| 82 | _error->Warning(_("Not using locking for read only lock file %s"),File.c_str()); |
| 83 | return dup(0); // Need something for the caller to close |
| 84 | } |
| 85 | |
| 86 | if (Errors == true) |
| 87 | _error->Errno("open",_("Could not open lock file %s"),File.c_str()); |
| 88 | |
| 89 | // Feh.. We do this to distinguish the lock vs open case.. |
| 90 | errno = EPERM; |
| 91 | return -1; |
| 92 | } |
| 93 | SetCloseExec(FD,true); |
| 94 | |
| 95 | // Aquire a write lock |
| 96 | struct flock fl; |
| 97 | fl.l_type = F_WRLCK; |
| 98 | fl.l_whence = SEEK_SET; |
| 99 | fl.l_start = 0; |
| 100 | fl.l_len = 0; |
| 101 | if (fcntl(FD,F_SETLK,&fl) == -1) |
| 102 | { |
| 103 | if (errno == ENOLCK) |
| 104 | { |
| 105 | _error->Warning(_("Not using locking for nfs mounted lock file %s"),File.c_str()); |
| 106 | return dup(0); // Need something for the caller to close |
| 107 | } |
| 108 | if (Errors == true) |
| 109 | _error->Errno("open",_("Could not get lock %s"),File.c_str()); |
| 110 | |
| 111 | int Tmp = errno; |
| 112 | close(FD); |
| 113 | errno = Tmp; |
| 114 | return -1; |
| 115 | } |
| 116 | |
| 117 | return FD; |
| 118 | } |
| 119 | /*}}}*/ |
| 120 | // FileExists - Check if a file exists /*{{{*/ |
| 121 | // --------------------------------------------------------------------- |
| 122 | /* */ |
| 123 | bool FileExists(string File) |
| 124 | { |
| 125 | struct stat Buf; |
| 126 | if (stat(File.c_str(),&Buf) != 0) |
| 127 | return false; |
| 128 | return true; |
| 129 | } |
| 130 | /*}}}*/ |
| 131 | // SafeGetCWD - This is a safer getcwd that returns a dynamic string /*{{{*/ |
| 132 | // --------------------------------------------------------------------- |
| 133 | /* We return / on failure. */ |
| 134 | string SafeGetCWD() |
| 135 | { |
| 136 | // Stash the current dir. |
| 137 | char S[300]; |
| 138 | S[0] = 0; |
| 139 | if (getcwd(S,sizeof(S)-2) == 0) |
| 140 | return "/"; |
| 141 | unsigned int Len = strlen(S); |
| 142 | S[Len] = '/'; |
| 143 | S[Len+1] = 0; |
| 144 | return S; |
| 145 | } |
| 146 | /*}}}*/ |
| 147 | // flNotDir - Strip the directory from the filename /*{{{*/ |
| 148 | // --------------------------------------------------------------------- |
| 149 | /* */ |
| 150 | string flNotDir(string File) |
| 151 | { |
| 152 | string::size_type Res = File.rfind('/'); |
| 153 | if (Res == string::npos) |
| 154 | return File; |
| 155 | Res++; |
| 156 | return string(File,Res,Res - File.length()); |
| 157 | } |
| 158 | /*}}}*/ |
| 159 | // flNotFile - Strip the file from the directory name /*{{{*/ |
| 160 | // --------------------------------------------------------------------- |
| 161 | /* Result ends in a / */ |
| 162 | string flNotFile(string File) |
| 163 | { |
| 164 | string::size_type Res = File.rfind('/'); |
| 165 | if (Res == string::npos) |
| 166 | return "./"; |
| 167 | Res++; |
| 168 | return string(File,0,Res); |
| 169 | } |
| 170 | /*}}}*/ |
| 171 | // flExtension - Return the extension for the file /*{{{*/ |
| 172 | // --------------------------------------------------------------------- |
| 173 | /* */ |
| 174 | string flExtension(string File) |
| 175 | { |
| 176 | string::size_type Res = File.rfind('.'); |
| 177 | if (Res == string::npos) |
| 178 | return File; |
| 179 | Res++; |
| 180 | return string(File,Res,Res - File.length()); |
| 181 | } |
| 182 | /*}}}*/ |
| 183 | // flNoLink - If file is a symlink then deref it /*{{{*/ |
| 184 | // --------------------------------------------------------------------- |
| 185 | /* If the name is not a link then the returned path is the input. */ |
| 186 | string flNoLink(string File) |
| 187 | { |
| 188 | struct stat St; |
| 189 | if (lstat(File.c_str(),&St) != 0 || S_ISLNK(St.st_mode) == 0) |
| 190 | return File; |
| 191 | if (stat(File.c_str(),&St) != 0) |
| 192 | return File; |
| 193 | |
| 194 | /* Loop resolving the link. There is no need to limit the number of |
| 195 | loops because the stat call above ensures that the symlink is not |
| 196 | circular */ |
| 197 | char Buffer[1024]; |
| 198 | string NFile = File; |
| 199 | while (1) |
| 200 | { |
| 201 | // Read the link |
| 202 | int Res; |
| 203 | if ((Res = readlink(NFile.c_str(),Buffer,sizeof(Buffer))) <= 0 || |
| 204 | (unsigned)Res >= sizeof(Buffer)) |
| 205 | return File; |
| 206 | |
| 207 | // Append or replace the previous path |
| 208 | Buffer[Res] = 0; |
| 209 | if (Buffer[0] == '/') |
| 210 | NFile = Buffer; |
| 211 | else |
| 212 | NFile = flNotFile(NFile) + Buffer; |
| 213 | |
| 214 | // See if we are done |
| 215 | if (lstat(NFile.c_str(),&St) != 0) |
| 216 | return File; |
| 217 | if (S_ISLNK(St.st_mode) == 0) |
| 218 | return NFile; |
| 219 | } |
| 220 | } |
| 221 | /*}}}*/ |
| 222 | // flCombine - Combine a file and a directory /*{{{*/ |
| 223 | // --------------------------------------------------------------------- |
| 224 | /* If the file is an absolute path then it is just returned, otherwise |
| 225 | the directory is pre-pended to it. */ |
| 226 | string flCombine(string Dir,string File) |
| 227 | { |
| 228 | if (File.empty() == true) |
| 229 | return string(); |
| 230 | |
| 231 | if (File[0] == '/' || Dir.empty() == true) |
| 232 | return File; |
| 233 | if (File.length() >= 2 && File[0] == '.' && File[1] == '/') |
| 234 | return File; |
| 235 | if (Dir[Dir.length()-1] == '/') |
| 236 | return Dir + File; |
| 237 | return Dir + '/' + File; |
| 238 | } |
| 239 | /*}}}*/ |
| 240 | // SetCloseExec - Set the close on exec flag /*{{{*/ |
| 241 | // --------------------------------------------------------------------- |
| 242 | /* */ |
| 243 | void SetCloseExec(int Fd,bool Close) |
| 244 | { |
| 245 | if (fcntl(Fd,F_SETFD,(Close == false)?0:FD_CLOEXEC) != 0) |
| 246 | { |
| 247 | cerr << "FATAL -> Could not set close on exec " << strerror(errno) << endl; |
| 248 | exit(100); |
| 249 | } |
| 250 | } |
| 251 | /*}}}*/ |
| 252 | // SetNonBlock - Set the nonblocking flag /*{{{*/ |
| 253 | // --------------------------------------------------------------------- |
| 254 | /* */ |
| 255 | void SetNonBlock(int Fd,bool Block) |
| 256 | { |
| 257 | int Flags = fcntl(Fd,F_GETFL) & (~O_NONBLOCK); |
| 258 | if (fcntl(Fd,F_SETFL,Flags | ((Block == false)?0:O_NONBLOCK)) != 0) |
| 259 | { |
| 260 | cerr << "FATAL -> Could not set non-blocking flag " << strerror(errno) << endl; |
| 261 | exit(100); |
| 262 | } |
| 263 | } |
| 264 | /*}}}*/ |
| 265 | // WaitFd - Wait for a FD to become readable /*{{{*/ |
| 266 | // --------------------------------------------------------------------- |
| 267 | /* This waits for a FD to become readable using select. It is useful for |
| 268 | applications making use of non-blocking sockets. The timeout is |
| 269 | in seconds. */ |
| 270 | bool WaitFd(int Fd,bool write,unsigned long timeout) |
| 271 | { |
| 272 | fd_set Set; |
| 273 | struct timeval tv; |
| 274 | FD_ZERO(&Set); |
| 275 | FD_SET(Fd,&Set); |
| 276 | tv.tv_sec = timeout; |
| 277 | tv.tv_usec = 0; |
| 278 | if (write == true) |
| 279 | { |
| 280 | int Res; |
| 281 | do |
| 282 | { |
| 283 | Res = select(Fd+1,0,&Set,0,(timeout != 0?&tv:0)); |
| 284 | } |
| 285 | while (Res < 0 && errno == EINTR); |
| 286 | |
| 287 | if (Res <= 0) |
| 288 | return false; |
| 289 | } |
| 290 | else |
| 291 | { |
| 292 | int Res; |
| 293 | do |
| 294 | { |
| 295 | Res = select(Fd+1,&Set,0,0,(timeout != 0?&tv:0)); |
| 296 | } |
| 297 | while (Res < 0 && errno == EINTR); |
| 298 | |
| 299 | if (Res <= 0) |
| 300 | return false; |
| 301 | } |
| 302 | |
| 303 | return true; |
| 304 | } |
| 305 | /*}}}*/ |
| 306 | // ExecFork - Magical fork that sanitizes the context before execing /*{{{*/ |
| 307 | // --------------------------------------------------------------------- |
| 308 | /* This is used if you want to cleanse the environment for the forked |
| 309 | child, it fixes up the important signals and nukes all of the fds, |
| 310 | otherwise acts like normal fork. */ |
| 311 | pid_t ExecFork() |
| 312 | { |
| 313 | // Fork off the process |
| 314 | pid_t Process = fork(); |
| 315 | if (Process < 0) |
| 316 | { |
| 317 | cerr << "FATAL -> Failed to fork." << endl; |
| 318 | exit(100); |
| 319 | } |
| 320 | |
| 321 | // Spawn the subprocess |
| 322 | if (Process == 0) |
| 323 | { |
| 324 | // Setup the signals |
| 325 | signal(SIGPIPE,SIG_DFL); |
| 326 | signal(SIGQUIT,SIG_DFL); |
| 327 | signal(SIGINT,SIG_DFL); |
| 328 | signal(SIGWINCH,SIG_DFL); |
| 329 | signal(SIGCONT,SIG_DFL); |
| 330 | signal(SIGTSTP,SIG_DFL); |
| 331 | |
| 332 | set<int> KeepFDs; |
| 333 | Configuration::Item const *Opts = _config->Tree("APT::Keep-Fds"); |
| 334 | if (Opts != 0 && Opts->Child != 0) |
| 335 | { |
| 336 | Opts = Opts->Child; |
| 337 | for (; Opts != 0; Opts = Opts->Next) |
| 338 | { |
| 339 | if (Opts->Value.empty() == true) |
| 340 | continue; |
| 341 | int fd = atoi(Opts->Value.c_str()); |
| 342 | KeepFDs.insert(fd); |
| 343 | } |
| 344 | } |
| 345 | |
| 346 | // Close all of our FDs - just in case |
| 347 | for (int K = 3; K != 40; K++) |
| 348 | { |
| 349 | if(KeepFDs.find(K) == KeepFDs.end()) |
| 350 | fcntl(K,F_SETFD,FD_CLOEXEC); |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | return Process; |
| 355 | } |
| 356 | /*}}}*/ |
| 357 | // ExecWait - Fancy waitpid /*{{{*/ |
| 358 | // --------------------------------------------------------------------- |
| 359 | /* Waits for the given sub process. If Reap is set then no errors are |
| 360 | generated. Otherwise a failed subprocess will generate a proper descriptive |
| 361 | message */ |
| 362 | bool ExecWait(pid_t Pid,const char *Name,bool Reap) |
| 363 | { |
| 364 | if (Pid <= 1) |
| 365 | return true; |
| 366 | |
| 367 | // Wait and collect the error code |
| 368 | int Status; |
| 369 | while (waitpid(Pid,&Status,0) != Pid) |
| 370 | { |
| 371 | if (errno == EINTR) |
| 372 | continue; |
| 373 | |
| 374 | if (Reap == true) |
| 375 | return false; |
| 376 | |
| 377 | return _error->Error(_("Waited for %s but it wasn't there"),Name); |
| 378 | } |
| 379 | |
| 380 | |
| 381 | // Check for an error code. |
| 382 | if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0) |
| 383 | { |
| 384 | if (Reap == true) |
| 385 | return false; |
| 386 | if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV) |
| 387 | return _error->Error(_("Sub-process %s received a segmentation fault."),Name); |
| 388 | |
| 389 | if (WIFEXITED(Status) != 0) |
| 390 | return _error->Error(_("Sub-process %s returned an error code (%u)"),Name,WEXITSTATUS(Status)); |
| 391 | |
| 392 | return _error->Error(_("Sub-process %s exited unexpectedly"),Name); |
| 393 | } |
| 394 | |
| 395 | return true; |
| 396 | } |
| 397 | /*}}}*/ |
| 398 | |
| 399 | // FileFd::Open - Open a file /*{{{*/ |
| 400 | // --------------------------------------------------------------------- |
| 401 | /* The most commonly used open mode combinations are given with Mode */ |
| 402 | bool FileFd::Open(string FileName,OpenMode Mode, unsigned long Perms) |
| 403 | { |
| 404 | Close(); |
| 405 | Flags = AutoClose; |
| 406 | switch (Mode) |
| 407 | { |
| 408 | case ReadOnly: |
| 409 | iFd = open(FileName.c_str(),O_RDONLY); |
| 410 | break; |
| 411 | |
| 412 | case WriteEmpty: |
| 413 | { |
| 414 | struct stat Buf; |
| 415 | if (lstat(FileName.c_str(),&Buf) == 0 && S_ISLNK(Buf.st_mode)) |
| 416 | unlink(FileName.c_str()); |
| 417 | iFd = open(FileName.c_str(),O_RDWR | O_CREAT | O_TRUNC,Perms); |
| 418 | break; |
| 419 | } |
| 420 | |
| 421 | case WriteExists: |
| 422 | iFd = open(FileName.c_str(),O_RDWR); |
| 423 | break; |
| 424 | |
| 425 | case WriteAny: |
| 426 | iFd = open(FileName.c_str(),O_RDWR | O_CREAT,Perms); |
| 427 | break; |
| 428 | |
| 429 | case WriteTemp: |
| 430 | unlink(FileName.c_str()); |
| 431 | iFd = open(FileName.c_str(),O_RDWR | O_CREAT | O_EXCL,Perms); |
| 432 | break; |
| 433 | } |
| 434 | |
| 435 | if (iFd < 0) |
| 436 | return _error->Errno("open",_("Could not open file %s"),FileName.c_str()); |
| 437 | |
| 438 | this->FileName = FileName; |
| 439 | SetCloseExec(iFd,true); |
| 440 | return true; |
| 441 | } |
| 442 | /*}}}*/ |
| 443 | // FileFd::~File - Closes the file /*{{{*/ |
| 444 | // --------------------------------------------------------------------- |
| 445 | /* If the proper modes are selected then we close the Fd and possibly |
| 446 | unlink the file on error. */ |
| 447 | FileFd::~FileFd() |
| 448 | { |
| 449 | Close(); |
| 450 | } |
| 451 | /*}}}*/ |
| 452 | // FileFd::Read - Read a bit of the file /*{{{*/ |
| 453 | // --------------------------------------------------------------------- |
| 454 | /* We are carefull to handle interruption by a signal while reading |
| 455 | gracefully. */ |
| 456 | bool FileFd::Read(void *To,unsigned long Size,unsigned long *Actual) |
| 457 | { |
| 458 | int Res; |
| 459 | errno = 0; |
| 460 | if (Actual != 0) |
| 461 | *Actual = 0; |
| 462 | |
| 463 | do |
| 464 | { |
| 465 | Res = read(iFd,To,Size); |
| 466 | if (Res < 0 && errno == EINTR) |
| 467 | continue; |
| 468 | if (Res < 0) |
| 469 | { |
| 470 | Flags |= Fail; |
| 471 | return _error->Errno("read",_("Read error")); |
| 472 | } |
| 473 | |
| 474 | To = (char *)To + Res; |
| 475 | Size -= Res; |
| 476 | if (Actual != 0) |
| 477 | *Actual += Res; |
| 478 | } |
| 479 | while (Res > 0 && Size > 0); |
| 480 | |
| 481 | if (Size == 0) |
| 482 | return true; |
| 483 | |
| 484 | // Eof handling |
| 485 | if (Actual != 0) |
| 486 | { |
| 487 | Flags |= HitEof; |
| 488 | return true; |
| 489 | } |
| 490 | |
| 491 | Flags |= Fail; |
| 492 | return _error->Error(_("read, still have %lu to read but none left"),Size); |
| 493 | } |
| 494 | /*}}}*/ |
| 495 | // FileFd::Write - Write to the file /*{{{*/ |
| 496 | // --------------------------------------------------------------------- |
| 497 | /* */ |
| 498 | bool FileFd::Write(const void *From,unsigned long Size) |
| 499 | { |
| 500 | int Res; |
| 501 | errno = 0; |
| 502 | do |
| 503 | { |
| 504 | Res = write(iFd,From,Size); |
| 505 | if (Res < 0 && errno == EINTR) |
| 506 | continue; |
| 507 | if (Res < 0) |
| 508 | { |
| 509 | Flags |= Fail; |
| 510 | return _error->Errno("write",_("Write error")); |
| 511 | } |
| 512 | |
| 513 | From = (char *)From + Res; |
| 514 | Size -= Res; |
| 515 | } |
| 516 | while (Res > 0 && Size > 0); |
| 517 | |
| 518 | if (Size == 0) |
| 519 | return true; |
| 520 | |
| 521 | Flags |= Fail; |
| 522 | return _error->Error(_("write, still have %lu to write but couldn't"),Size); |
| 523 | } |
| 524 | /*}}}*/ |
| 525 | // FileFd::Seek - Seek in the file /*{{{*/ |
| 526 | // --------------------------------------------------------------------- |
| 527 | /* */ |
| 528 | bool FileFd::Seek(unsigned long To) |
| 529 | { |
| 530 | if (lseek(iFd,To,SEEK_SET) != (signed)To) |
| 531 | { |
| 532 | Flags |= Fail; |
| 533 | return _error->Error("Unable to seek to %lu",To); |
| 534 | } |
| 535 | |
| 536 | return true; |
| 537 | } |
| 538 | /*}}}*/ |
| 539 | // FileFd::Skip - Seek in the file /*{{{*/ |
| 540 | // --------------------------------------------------------------------- |
| 541 | /* */ |
| 542 | bool FileFd::Skip(unsigned long Over) |
| 543 | { |
| 544 | if (lseek(iFd,Over,SEEK_CUR) < 0) |
| 545 | { |
| 546 | Flags |= Fail; |
| 547 | return _error->Error("Unable to seek ahead %lu",Over); |
| 548 | } |
| 549 | |
| 550 | return true; |
| 551 | } |
| 552 | /*}}}*/ |
| 553 | // FileFd::Truncate - Truncate the file /*{{{*/ |
| 554 | // --------------------------------------------------------------------- |
| 555 | /* */ |
| 556 | bool FileFd::Truncate(unsigned long To) |
| 557 | { |
| 558 | if (ftruncate(iFd,To) != 0) |
| 559 | { |
| 560 | Flags |= Fail; |
| 561 | return _error->Error("Unable to truncate to %lu",To); |
| 562 | } |
| 563 | |
| 564 | return true; |
| 565 | } |
| 566 | /*}}}*/ |
| 567 | // FileFd::Tell - Current seek position /*{{{*/ |
| 568 | // --------------------------------------------------------------------- |
| 569 | /* */ |
| 570 | unsigned long FileFd::Tell() |
| 571 | { |
| 572 | off_t Res = lseek(iFd,0,SEEK_CUR); |
| 573 | if (Res == (off_t)-1) |
| 574 | _error->Errno("lseek","Failed to determine the current file position"); |
| 575 | return Res; |
| 576 | } |
| 577 | /*}}}*/ |
| 578 | // FileFd::Size - Return the size of the file /*{{{*/ |
| 579 | // --------------------------------------------------------------------- |
| 580 | /* */ |
| 581 | unsigned long FileFd::Size() |
| 582 | { |
| 583 | struct stat Buf; |
| 584 | if (fstat(iFd,&Buf) != 0) |
| 585 | return _error->Errno("fstat","Unable to determine the file size"); |
| 586 | return Buf.st_size; |
| 587 | } |
| 588 | /*}}}*/ |
| 589 | // FileFd::Close - Close the file if the close flag is set /*{{{*/ |
| 590 | // --------------------------------------------------------------------- |
| 591 | /* */ |
| 592 | bool FileFd::Close() |
| 593 | { |
| 594 | bool Res = true; |
| 595 | if ((Flags & AutoClose) == AutoClose) |
| 596 | if (iFd >= 0 && close(iFd) != 0) |
| 597 | Res &= _error->Errno("close",_("Problem closing the file")); |
| 598 | iFd = -1; |
| 599 | |
| 600 | if ((Flags & Fail) == Fail && (Flags & DelOnFail) == DelOnFail && |
| 601 | FileName.empty() == false) |
| 602 | if (unlink(FileName.c_str()) != 0) |
| 603 | Res &= _error->WarningE("unlnk",_("Problem unlinking the file")); |
| 604 | return Res; |
| 605 | } |
| 606 | /*}}}*/ |
| 607 | // FileFd::Sync - Sync the file /*{{{*/ |
| 608 | // --------------------------------------------------------------------- |
| 609 | /* */ |
| 610 | bool FileFd::Sync() |
| 611 | { |
| 612 | #ifdef _POSIX_SYNCHRONIZED_IO |
| 613 | if (fsync(iFd) != 0) |
| 614 | return _error->Errno("sync",_("Problem syncing the file")); |
| 615 | #endif |
| 616 | return true; |
| 617 | } |
| 618 | /*}}}*/ |