diff options
Diffstat (limited to 'methods/bzip2.cc')
| -rw-r--r-- | methods/bzip2.cc | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/methods/bzip2.cc b/methods/bzip2.cc deleted file mode 100644 index 8e7e46557..000000000 --- a/methods/bzip2.cc +++ /dev/null @@ -1,175 +0,0 @@ -// -*- mode: cpp; mode: fold -*- -// Description /*{{{*/ -/* ###################################################################### - - Bzip2 method - Take a file URI in and decompress it into the target - file. - - While the method is named "bzip2" it handles also other compression - types as it calls binaries based on the name of the method, - so it can also be used to handle gzip, lzma and others if named - correctly. - - ##################################################################### */ - /*}}}*/ -// Include Files /*{{{*/ -#include <config.h> - -#include <apt-pkg/fileutl.h> -#include <apt-pkg/error.h> -#include <apt-pkg/acquire-method.h> -#include <apt-pkg/strutl.h> -#include <apt-pkg/hashes.h> -#include <apt-pkg/configuration.h> - -#include <sys/stat.h> -#include <unistd.h> -#include <utime.h> -#include <stdio.h> -#include <errno.h> -#include <apti18n.h> - /*}}}*/ - -const char *Prog; - -class Bzip2Method : public pkgAcqMethod -{ - virtual bool Fetch(FetchItem *Itm); - - public: - - Bzip2Method() : pkgAcqMethod("1.1",SingleInstance | SendConfig) {}; -}; - - -// Bzip2Method::Fetch - Decompress the passed URI /*{{{*/ -// --------------------------------------------------------------------- -/* */ -bool Bzip2Method::Fetch(FetchItem *Itm) -{ - URI Get = Itm->Uri; - std::string Path = Get.Host + Get.Path; // To account for relative paths - - std::string GzPathOption = "Dir::bin::" + std::string(Prog); - - FetchResult Res; - Res.Filename = Itm->DestFile; - URIStart(Res); - - // Open the source and destination files - FileFd From(Path,FileFd::ReadOnly); - - if(From.FileSize() == 0) - return _error->Error(_("Empty files can't be valid archives")); - - int GzOut[2]; - if (pipe(GzOut) < 0) - return _error->Errno("pipe",_("Couldn't open pipe for %s"),Prog); - - // Fork bzip2 - pid_t Process = ExecFork(); - if (Process == 0) - { - close(GzOut[0]); - dup2(From.Fd(),STDIN_FILENO); - dup2(GzOut[1],STDOUT_FILENO); - From.Close(); - close(GzOut[1]); - SetCloseExec(STDIN_FILENO,false); - SetCloseExec(STDOUT_FILENO,false); - - const char *Args[3]; - std::string Tmp = _config->Find(GzPathOption,Prog); - Args[0] = Tmp.c_str(); - Args[1] = "-d"; - Args[2] = 0; - execvp(Args[0],(char **)Args); - _exit(100); - } - From.Close(); - close(GzOut[1]); - - FileFd FromGz(GzOut[0]); // For autoclose - FileFd To(Itm->DestFile,FileFd::WriteAtomic); - To.EraseOnFailure(); - if (_error->PendingError() == true) - return false; - - // Read data from bzip2, generate checksums and write - Hashes Hash; - bool Failed = false; - while (1) - { - unsigned char Buffer[4*1024]; - - ssize_t Count = read(GzOut[0],Buffer,sizeof(Buffer)); - if (Count < 0 && errno == EINTR) - continue; - - if (Count < 0) - { - _error->Errno("read", _("Read error from %s process"),Prog); - Failed = true; - break; - } - - if (Count == 0) - break; - - Hash.Add(Buffer,Count); - if (To.Write(Buffer,Count) == false) - { - Failed = true; - FromGz.Close(); - break; - } - } - - // Wait for bzip2 to finish - if (ExecWait(Process,_config->Find(GzPathOption,Prog).c_str(),false) == false) - { - To.OpFail(); - return false; - } - - To.Close(); - - if (Failed == true) - return false; - - // Transfer the modification times - struct stat Buf; - if (stat(Path.c_str(),&Buf) != 0) - return _error->Errno("stat",_("Failed to stat")); - - struct utimbuf TimeBuf; - TimeBuf.actime = Buf.st_atime; - TimeBuf.modtime = Buf.st_mtime; - if (utime(Itm->DestFile.c_str(),&TimeBuf) != 0) - return _error->Errno("utime",_("Failed to set modification time")); - - if (stat(Itm->DestFile.c_str(),&Buf) != 0) - return _error->Errno("stat",_("Failed to stat")); - - // Return a Done response - Res.LastModified = Buf.st_mtime; - Res.Size = Buf.st_size; - Res.TakeHashes(Hash); - - URIDone(Res); - - return true; -} - /*}}}*/ - -int main(int argc, char *argv[]) -{ - setlocale(LC_ALL, ""); - - Bzip2Method Mth; - - Prog = strrchr(argv[0],'/'); - Prog++; - - return Mth.Run(); -} |