diff options
Diffstat (limited to 'apt-pkg/indexcopy.cc')
| -rw-r--r-- | apt-pkg/indexcopy.cc | 146 |
1 files changed, 72 insertions, 74 deletions
diff --git a/apt-pkg/indexcopy.cc b/apt-pkg/indexcopy.cc index 84f9fd420..e38fe3e45 100644 --- a/apt-pkg/indexcopy.cc +++ b/apt-pkg/indexcopy.cc @@ -16,6 +16,7 @@ #include <apt-pkg/progress.h> #include <apt-pkg/strutl.h> #include <apt-pkg/fileutl.h> +#include <apt-pkg/aptconfiguration.h> #include <apt-pkg/configuration.h> #include <apt-pkg/tagfile.h> #include <apt-pkg/indexrecords.h> @@ -37,80 +38,62 @@ using namespace std; -// DecompressFile - wrapper for decompressing gzip/bzip2/xz compressed files /*{{{*/ +// DecompressFile - wrapper for decompressing compressed files /*{{{*/ // --------------------------------------------------------------------- /* */ bool DecompressFile(string Filename, int *fd, off_t *FileSize) { - string CompressProg; - string CompressProgFind; - FileFd From; struct stat Buf; - *fd = -1; + *fd = -1; - if (stat((Filename + ".gz").c_str(), &Buf) == 0) + std::vector<APT::Configuration::Compressor> const compressor = APT::Configuration::getCompressors(); + std::vector<APT::Configuration::Compressor>::const_iterator UnCompress; + std::string file = std::string(Filename).append(UnCompress->Extension); + for (UnCompress = compressor.begin(); UnCompress != compressor.end(); ++UnCompress) { - CompressProg = "gzip"; - CompressProgFind = "Dir::bin::gzip"; - From.Open(Filename + ".gz",FileFd::ReadOnly); + if (stat(file.c_str(), &Buf) == 0) + break; } - else if (stat((Filename + ".bz2").c_str(), &Buf) == 0) - { - CompressProg = "bzip2"; - CompressProgFind = "Dir::bin::bzip2"; - From.Open(Filename + ".bz2",FileFd::ReadOnly); - } - else if (stat((Filename + ".xz").c_str(), &Buf) == 0) - { - CompressProg = "xz"; - CompressProgFind = "Dir::bin::xz"; - From.Open(Filename + ".xz",FileFd::ReadOnly); - } - else - { + + if (UnCompress == compressor.end()) return _error->Errno("decompressor", "Unable to parse file"); - } - if (_error->PendingError() == true) - return -1; - *FileSize = Buf.st_size; - - // Get a temp file - FILE *tmp = tmpfile(); - if (tmp == 0) - return _error->Errno("tmpfile","Unable to create a tmp file"); - *fd = dup(fileno(tmp)); - fclose(tmp); - - // Fork decompressor - pid_t Process = fork(); - if (Process < 0) - return _error->Errno("fork","Couldn't fork to run decompressor"); - - // The child - if (Process == 0) - { - dup2(From.Fd(),STDIN_FILENO); - dup2(*fd,STDOUT_FILENO); - SetCloseExec(STDIN_FILENO,false); - SetCloseExec(STDOUT_FILENO,false); - - const char *Args[3]; - string Tmp = _config->Find(CompressProgFind, CompressProg); - Args[0] = Tmp.c_str(); - Args[1] = "-d"; - Args[2] = 0; - if(execvp(Args[0],(char **)Args)) - return(_error->Errno("decompressor","decompress failed")); - /* Should never get here */ - exit(100); + + // Create a data pipe + int Pipe[2] = {-1,-1}; + if (pipe(Pipe) != 0) + return _error->Errno("pipe",_("Failed to create subprocess IPC")); + for (int J = 0; J != 2; J++) + SetCloseExec(Pipe[J],true); + + *fd = Pipe[1]; + + // The child.. + pid_t Pid = ExecFork(); + if (Pid == 0) + { + dup2(Pipe[1],STDOUT_FILENO); + SetCloseExec(STDOUT_FILENO, false); + + std::vector<char const*> Args; + Args.push_back(UnCompress->Binary.c_str()); + for (std::vector<std::string>::const_iterator a = UnCompress->UncompressArgs.begin(); + a != UnCompress->UncompressArgs.end(); ++a) + Args.push_back(a->c_str()); + Args.push_back("--stdout"); + Args.push_back(file.c_str()); + Args.push_back(NULL); + + execvp(Args[0],(char **)&Args[0]); + cerr << _("Failed to exec compressor ") << Args[0] << endl; + _exit(100); } // Wait for decompress to finish - if (ExecWait(Process,CompressProg.c_str(),false) == false) + if (ExecWait(Pid, UnCompress->Binary.c_str(), false) == false) return false; - + return true; } /*}}}*/ @@ -132,17 +115,25 @@ bool IndexCopy::CopyPackages(string CDROM,string Name,vector<string> &List, // Prepare the progress indicator off_t TotalSize = 0; + std::vector<APT::Configuration::Compressor> const compressor = APT::Configuration::getCompressors(); for (vector<string>::iterator I = List.begin(); I != List.end(); ++I) { struct stat Buf; - if (stat(string(*I + GetFileName()).c_str(),&Buf) != 0 && - stat(string(*I + GetFileName() + ".gz").c_str(),&Buf) != 0 && - stat(string(*I + GetFileName() + ".xz").c_str(),&Buf) != 0 && - stat(string(*I + GetFileName() + ".bz2").c_str(),&Buf) != 0) - return _error->Errno("stat","Stat failed for %s", - string(*I + GetFileName()).c_str()); + bool found = false; + std::string file = std::string(*I).append(GetFileName()); + for (std::vector<APT::Configuration::Compressor>::const_iterator c = compressor.begin(); + c != compressor.end(); ++c) + { + if (stat(std::string(file + c->Extension).c_str(), &Buf) != 0) + continue; + found = true; + break; + } + + if (found == false) + return _error->Errno("stat", "Stat failed for %s", file.c_str()); TotalSize += Buf.st_size; - } + } off_t CurrentSize = 0; unsigned int NotFound = 0; @@ -834,18 +825,25 @@ bool TranslationsCopy::CopyTranslations(string CDROM,string Name, /*{{{*/ // Prepare the progress indicator off_t TotalSize = 0; + std::vector<APT::Configuration::Compressor> const compressor = APT::Configuration::getCompressors(); for (vector<string>::iterator I = List.begin(); I != List.end(); ++I) { struct stat Buf; - - if (stat(string(*I).c_str(),&Buf) != 0 && - stat(string(*I + ".gz").c_str(),&Buf) != 0 && - stat(string(*I + ".bz2").c_str(),&Buf) != 0 && - stat(string(*I + ".xz").c_str(),&Buf) != 0) - return _error->Errno("stat","Stat failed for %s", - string(*I).c_str()); + bool found = false; + std::string file = *I; + for (std::vector<APT::Configuration::Compressor>::const_iterator c = compressor.begin(); + c != compressor.end(); ++c) + { + if (stat(std::string(file + c->Extension).c_str(), &Buf) != 0) + continue; + found = true; + break; + } + + if (found == false) + return _error->Errno("stat", "Stat failed for %s", file.c_str()); TotalSize += Buf.st_size; - } + } off_t CurrentSize = 0; unsigned int NotFound = 0; |