X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/44dc669e08353716da835608ea54563b4c8c32bb..2ec858bc68bc2d79ec020fe24be2d76b7c5b6792:/apt-pkg/contrib/fileutl.cc diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc index cbf1d64a9..85dc6f600 100644 --- a/apt-pkg/contrib/fileutl.cc +++ b/apt-pkg/contrib/fileutl.cc @@ -42,6 +42,11 @@ #include #include #include + +#include +#ifdef WORDS_BIGENDIAN +#include +#endif /*}}}*/ using namespace std; @@ -62,6 +67,15 @@ bool RunScripts(const char *Cnf) // This is the child if (Child == 0) { + if (_config->FindDir("DPkg::Chroot-Directory","/") != "/") + { + std::cerr << "Chrooting into " + << _config->FindDir("DPkg::Chroot-Directory") + << std::endl; + if (chroot(_config->FindDir("DPkg::Chroot-Directory","/").c_str()) != 0) + _exit(100); + } + if (chdir("/tmp/") != 0) _exit(100); @@ -191,7 +205,7 @@ int GetLock(string File,bool Errors) /*}}}*/ // FileExists - Check if a file exists /*{{{*/ // --------------------------------------------------------------------- -/* */ +/* Beware: Directories are also files! */ bool FileExists(string File) { struct stat Buf; @@ -200,6 +214,17 @@ bool FileExists(string File) return true; } /*}}}*/ +// RealFileExists - Check if a file exists and if it is really a file /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool RealFileExists(string File) +{ + struct stat Buf; + if (stat(File.c_str(),&Buf) != 0) + return false; + return ((Buf.st_mode & S_IFREG) != 0); +} + /*}}}*/ // DirectoryExists - Check if a directory exists and is really one /*{{{*/ // --------------------------------------------------------------------- /* */ @@ -304,6 +329,13 @@ std::vector GetListOfFilesInDir(string const &Dir, std::vector c } std::vector List; + + if (DirectoryExists(Dir.c_str()) == false) + { + _error->Error(_("List of files can't be created as '%s' is not a directory"), Dir.c_str()); + return List; + } + Configuration::MatchAgainstConfig SilentIgnore("Dir::Ignore-Files-Silently"); DIR *D = opendir(Dir.c_str()); if (D == 0) @@ -318,6 +350,20 @@ std::vector GetListOfFilesInDir(string const &Dir, std::vector c if (Ent->d_name[0] == '.') continue; + // Make sure it is a file and not something else + string const File = flCombine(Dir,Ent->d_name); +#ifdef _DIRENT_HAVE_D_TYPE + if (Ent->d_type != DT_REG) +#endif + { + if (RealFileExists(File.c_str()) == false) + { + if (SilentIgnore.Match(Ent->d_name) == false) + _error->Notice(_("Ignoring '%s' in directory '%s' as it is not a regular file"), Ent->d_name, Dir.c_str()); + continue; + } + } + // check for accepted extension: // no extension given -> periods are bad as hell! // extensions given -> "" extension allows no extension @@ -331,7 +377,7 @@ std::vector GetListOfFilesInDir(string const &Dir, std::vector c if (Debug == true) std::clog << "Bad file: " << Ent->d_name << " → no extension" << std::endl; if (SilentIgnore.Match(Ent->d_name) == false) - _error->Notice("Ignoring file '%s' in directory '%s' as it has no filename extension", Ent->d_name, Dir.c_str()); + _error->Notice(_("Ignoring file '%s' in directory '%s' as it has no filename extension"), Ent->d_name, Dir.c_str()); continue; } } @@ -340,7 +386,7 @@ std::vector GetListOfFilesInDir(string const &Dir, std::vector c if (Debug == true) std::clog << "Bad file: " << Ent->d_name << " → bad extension »" << flExtension(Ent->d_name) << "«" << std::endl; if (SilentIgnore.Match(Ent->d_name) == false) - _error->Notice("Ignoring file '%s' in directory '%s' as it has an invalid filename extension", Ent->d_name, Dir.c_str()); + _error->Notice(_("Ignoring file '%s' in directory '%s' as it has an invalid filename extension"), Ent->d_name, Dir.c_str()); continue; } } @@ -373,16 +419,6 @@ std::vector GetListOfFilesInDir(string const &Dir, std::vector c continue; } - // Make sure it is a file and not something else - string const File = flCombine(Dir,Ent->d_name); - struct stat St; - if (stat(File.c_str(),&St) != 0 || S_ISREG(St.st_mode) == 0) - { - if (Debug == true) - std::clog << "Bad file: " << Ent->d_name << " → stat says not a good file" << std::endl; - continue; - } - if (Debug == true) std::clog << "Accept file: " << Ent->d_name << " in " << Dir << std::endl; List.push_back(File); @@ -410,6 +446,17 @@ string SafeGetCWD() return S; } /*}}}*/ +// GetModificationTime - Get the mtime of the given file or -1 on error /*{{{*/ +// --------------------------------------------------------------------- +/* We return / on failure. */ +time_t GetModificationTime(string const &Path) +{ + struct stat St; + if (stat(Path.c_str(), &St) < 0) + return -1; + return St.st_mtime; +} + /*}}}*/ // flNotDir - Strip the directory from the filename /*{{{*/ // --------------------------------------------------------------------- /* */ @@ -910,18 +957,24 @@ unsigned long FileFd::Tell() return Res; } /*}}}*/ -// FileFd::Size - Return the size of the file /*{{{*/ +// FileFd::FileSize - Return the size of the file /*{{{*/ // --------------------------------------------------------------------- /* */ -unsigned long FileFd::Size() +unsigned long FileFd::FileSize() { struct stat Buf; - unsigned long size; - off_t orig_pos; if (fstat(iFd,&Buf) != 0) return _error->Errno("fstat","Unable to determine the file size"); - size = Buf.st_size; + return Buf.st_size; +} + /*}}}*/ +// FileFd::Size - Return the size of the content in the file /*{{{*/ +// --------------------------------------------------------------------- +/* */ +unsigned long FileFd::Size() +{ + unsigned long size = FileSize(); // only check gzsize if we are actually a gzip file, just checking for // "gz" is not sufficient as uncompressed files will be opened with @@ -931,12 +984,19 @@ unsigned long FileFd::Size() /* unfortunately zlib.h doesn't provide a gzsize(), so we have to do * this ourselves; the original (uncompressed) file size is the last 32 * bits of the file */ - orig_pos = lseek(iFd, 0, SEEK_CUR); + off_t orig_pos = lseek(iFd, 0, SEEK_CUR); if (lseek(iFd, -4, SEEK_END) < 0) return _error->Errno("lseek","Unable to seek to end of gzipped file"); + size = 0L; if (read(iFd, &size, 4) != 4) return _error->Errno("read","Unable to read original size of gzipped file"); - size &= 0xFFFFFFFF; + +#ifdef WORDS_BIGENDIAN + uint32_t tmp_size = size; + uint8_t const * const p = (uint8_t const * const) &tmp_size; + tmp_size = (p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]; + size = tmp_size; +#endif if (lseek(iFd, orig_pos, SEEK_SET) < 0) return _error->Errno("lseek","Unable to seek in gzipped file");