|
|
@@ -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();
|
|
|
-}
|
David Kalnischkies