+++ /dev/null
-// -*- 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();
-}
#include <apti18n.h>
/*}}}*/
+const char *Prog;
+
class GzipMethod : public pkgAcqMethod
{
virtual bool Fetch(FetchItem *Itm);
FetchResult Res;
Res.Filename = Itm->DestFile;
URIStart(Res);
-
+
+ std::vector<APT::Configuration::Compressor> const compressors = APT::Configuration::getCompressors();
+ std::vector<APT::Configuration::Compressor>::const_iterator compressor = compressors.begin();
+ for (; compressor != compressors.end(); ++compressor)
+ if (compressor->Name == Prog)
+ break;
+ if (compressor == compressors.end())
+ return _error->Error("Extraction of file %s requires unknown compressor %s", Path.c_str(), Prog);
+
// Open the source and destination files
- FileFd From(Path,FileFd::ReadOnly, FileFd::Gzip);
+ FileFd From;
+ From.Open(Path, FileFd::ReadOnly, *compressor);
if(From.FileSize() == 0)
return _error->Error(_("Empty files can't be valid archives"));
{
setlocale(LC_ALL, "");
+ Prog = strrchr(argv[0],'/');
+ ++Prog;
+
GzipMethod Mth;
return Mth.Run();
}
SOURCE = mirror.cc http.cc rfc2553emu.cc connect.cc
include $(PROGRAM_H)
-# The gzip method
-PROGRAM=bzip2
-SLIBS = -lapt-pkg $(INTLLIBS)
-LIB_MAKES = apt-pkg/makefile
-SOURCE = bzip2.cc
-include $(PROGRAM_H)
-
-# SSH and lzma method symlink
-binary: $(BIN)/ssh $(BIN)/lzma $(BIN)/xz
-veryclean: clean-$(BIN)/ssh clean-$(BIN)/lzma clean-$(BIN)/xz
+# SSH method symlink
+binary: $(BIN)/ssh
+veryclean: clean-$(BIN)/ssh
$(BIN)/ssh:
echo "Installing ssh method link"
clean-$(BIN)/ssh:
-rm $(BIN)/ssh
-$(BIN)/lzma:
- echo "Installing lzma method link"
- ln -fs bzip2 $(BIN)/lzma
-clean-$(BIN)/lzma:
- -rm $(BIN)/lzma
-
-$(BIN)/xz:
- echo "Installing xz method link"
- ln -fs bzip2 $(BIN)/xz
-clean-$(BIN)/xz:
- -rm $(BIN)/xz
+# create links for all other compressors
+COMPRESSORS=bzip2 lzma xz
+
+binary: $(addprefix $(BIN)/,$(COMPRESSORS))
+veryclean: $(addprefix clean-$(BIN)/,$(COMPRESSORS))
+
+$(addprefix $(BIN)/,$(COMPRESSORS)): $(BIN)/gzip
+ echo "Installing $(notdir $@) method link"
+ ln -fs gzip $@
+
+$(addprefix clean-$(BIN)/,$(COMPRESSORS)):
+ -rm $(BIN)/$(notdir $@)
projects / apt.git / commitdiff
