#include <dirent.h>
#include <signal.h>
#include <errno.h>
+#include <glob.h>
+
#include <set>
#include <algorithm>
-// FIXME: Compressor Fds have some speed disadvantages and are a bit buggy currently,
-// so while the current implementation satisfies the testcases it is not a real option
-// to disable it for now
-#define APT_USE_ZLIB 1
-#if APT_USE_ZLIB
-#include <zlib.h>
-#else
-#pragma message "Usage of zlib is DISABLED!"
+#ifdef HAVE_ZLIB
+ #include <zlib.h>
+#endif
+#ifdef HAVE_BZ2
+ #include <bzlib.h>
#endif
#ifdef WORDS_BIGENDIAN
class FileFdPrivate {
public:
-#if APT_USE_ZLIB
+#ifdef HAVE_ZLIB
gzFile gz;
#else
void* gz;
+#endif
+#ifdef HAVE_BZ2
+ BZFILE* bz2;
+#else
+ void* bz2;
#endif
int compressed_fd;
pid_t compressor_pid;
bool pipe;
APT::Configuration::Compressor compressor;
unsigned int openmode;
- FileFdPrivate() : gz(NULL), compressed_fd(-1), compressor_pid(-1), pipe(false) {};
+ unsigned long long seekpos;
+ FileFdPrivate() : gz(NULL), bz2(NULL),
+ compressed_fd(-1), compressor_pid(-1), pipe(false),
+ openmode(0), seekpos(0) {};
+ bool CloseDown(std::string const &FileName)
+ {
+ bool Res = true;
+#ifdef HAVE_ZLIB
+ if (gz != NULL) {
+ int const e = gzclose(gz);
+ gz = NULL;
+ // gzdclose() on empty files always fails with "buffer error" here, ignore that
+ if (e != 0 && e != Z_BUF_ERROR)
+ Res &= _error->Errno("close",_("Problem closing the gzip file %s"), FileName.c_str());
+ }
+#endif
+#ifdef HAVE_BZ2
+ if (bz2 != NULL) {
+ BZ2_bzclose(bz2);
+ bz2 = NULL;
+ }
+#endif
+ if (compressor_pid > 0)
+ ExecWait(compressor_pid, "FileFdCompressor", true);
+ compressor_pid = -1;
+
+ return Res;
+ }
+ ~FileFdPrivate() { CloseDown(""); }
};
// RunScripts - Run a set of scripts from a configuration subtree /*{{{*/
/* The caller is expected to set things so that failure causes erasure */
bool CopyFile(FileFd &From,FileFd &To)
{
- if (From.IsOpen() == false || To.IsOpen() == false)
+ if (From.IsOpen() == false || To.IsOpen() == false ||
+ From.Failed() == true || To.Failed() == true)
return false;
// Buffered copy between fds
fl.l_len = 0;
if (fcntl(FD,F_SETLK,&fl) == -1)
{
+ // always close to not leak resources
+ int Tmp = errno;
+ close(FD);
+ errno = Tmp;
+
if (errno == ENOLCK)
{
_error->Warning(_("Not using locking for nfs mounted lock file %s"),File.c_str());
return dup(0); // Need something for the caller to close
- }
+ }
+
if (Errors == true)
_error->Errno("open",_("Could not get lock %s"),File.c_str());
- int Tmp = errno;
- close(FD);
- errno = Tmp;
return -1;
}
std::vector<string> List;
- if (DirectoryExists(Dir.c_str()) == false)
+ if (DirectoryExists(Dir) == false)
{
_error->Error(_("List of files can't be created as '%s' is not a directory"), Dir.c_str());
return List;
if (Ent->d_type != DT_REG)
#endif
{
- if (RealFileExists(File.c_str()) == false)
+ if (RealFileExists(File) == false)
{
+ // do not show ignoration warnings for directories
+ if (
+#ifdef _DIRENT_HAVE_D_TYPE
+ Ent->d_type == DT_DIR ||
+#endif
+ DirectoryExists(File) == true)
+ continue;
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;
}
closedir(D);
+ if (SortList == true)
+ std::sort(List.begin(),List.end());
+ return List;
+}
+std::vector<string> GetListOfFilesInDir(string const &Dir, bool SortList)
+{
+ bool const Debug = _config->FindB("Debug::GetListOfFilesInDir", false);
+ if (Debug == true)
+ std::clog << "Accept in " << Dir << " all regular files" << std::endl;
+
+ std::vector<string> List;
+
+ if (DirectoryExists(Dir) == false)
+ {
+ _error->Error(_("List of files can't be created as '%s' is not a directory"), Dir.c_str());
+ return List;
+ }
+
+ DIR *D = opendir(Dir.c_str());
+ if (D == 0)
+ {
+ _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
+ return List;
+ }
+
+ for (struct dirent *Ent = readdir(D); Ent != 0; Ent = readdir(D))
+ {
+ // skip "hidden" files
+ 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) == false)
+ {
+ if (Debug == true)
+ std::clog << "Bad file: " << Ent->d_name << " → it is not a real file" << std::endl;
+ continue;
+ }
+ }
+
+ // Skip bad filenames ala run-parts
+ const char *C = Ent->d_name;
+ for (; *C != 0; ++C)
+ if (isalpha(*C) == 0 && isdigit(*C) == 0
+ && *C != '_' && *C != '-' && *C != '.')
+ break;
+
+ // we don't reach the end of the name -> bad character included
+ if (*C != 0)
+ {
+ if (Debug == true)
+ std::clog << "Bad file: " << Ent->d_name << " → bad character »" << *C << "« in filename" << std::endl;
+ continue;
+ }
+
+ // skip filenames which end with a period. These are never valid
+ if (*(C - 1) == '.')
+ {
+ if (Debug == true)
+ std::clog << "Bad file: " << Ent->d_name << " → Period as last character" << std::endl;
+ continue;
+ }
+
+ if (Debug == true)
+ std::clog << "Accept file: " << Ent->d_name << " in " << Dir << std::endl;
+ List.push_back(File);
+ }
+ closedir(D);
+
if (SortList == true)
std::sort(List.begin(),List.end());
return List;
while (1)
{
// Read the link
- int Res;
+ ssize_t Res;
if ((Res = readlink(NFile.c_str(),Buffer,sizeof(Buffer))) <= 0 ||
- (unsigned)Res >= sizeof(Buffer))
+ (size_t)Res >= sizeof(Buffer))
return File;
// Append or replace the previous path
child, it fixes up the important signals and nukes all of the fds,
otherwise acts like normal fork. */
pid_t ExecFork()
+{
+ set<int> KeepFDs;
+
+ // FIXME: remove looking at APT::Keep-Fds eventually, its a hack
+ Configuration::Item const *Opts = _config->Tree("APT::Keep-Fds");
+ if (Opts != 0 && Opts->Child != 0)
+ {
+ Opts = Opts->Child;
+ for (; Opts != 0; Opts = Opts->Next)
+ {
+ if (Opts->Value.empty() == true)
+ continue;
+ int fd = atoi(Opts->Value.c_str());
+ KeepFDs.insert(fd);
+ }
+ }
+ return ExecFork(KeepFDs);
+}
+
+pid_t ExecFork(std::set<int> KeepFDs)
{
// Fork off the process
pid_t Process = fork();
signal(SIGCONT,SIG_DFL);
signal(SIGTSTP,SIG_DFL);
- set<int> KeepFDs;
- Configuration::Item const *Opts = _config->Tree("APT::Keep-Fds");
- if (Opts != 0 && Opts->Child != 0)
- {
- Opts = Opts->Child;
- for (; Opts != 0; Opts = Opts->Next)
- {
- if (Opts->Value.empty() == true)
- continue;
- int fd = atoi(Opts->Value.c_str());
- KeepFDs.insert(fd);
- }
- }
-
// Close all of our FDs - just in case
- for (int K = 3; K != 40; K++)
+ for (int K = 3; K != sysconf(_SC_OPEN_MAX); K++)
{
if(KeepFDs.find(K) == KeepFDs.end())
fcntl(K,F_SETFD,FD_CLOEXEC);
return Open(FileName, ReadOnly, Gzip, Perms);
if (Compress == Auto && (Mode & WriteOnly) == WriteOnly)
- return _error->Error("Autodetection on %s only works in ReadOnly openmode!", FileName.c_str());
+ return FileFdError("Autodetection on %s only works in ReadOnly openmode!", FileName.c_str());
- // FIXME: Denote inbuilt compressors somehow - as we don't need to have the binaries for them
std::vector<APT::Configuration::Compressor> const compressors = APT::Configuration::getCompressors();
std::vector<APT::Configuration::Compressor>::const_iterator compressor = compressors.begin();
if (Compress == Auto)
case Auto:
case Extension:
// Unreachable
- return _error->Error("Opening File %s in None, Auto or Extension should be already handled?!?", FileName.c_str());
+ return FileFdError("Opening File %s in None, Auto or Extension should be already handled?!?", FileName.c_str());
}
for (; compressor != compressors.end(); ++compressor)
if (compressor->Name == name)
break;
if (compressor == compressors.end())
- return _error->Error("Can't find a configured compressor %s for file %s", name.c_str(), FileName.c_str());
+ return FileFdError("Can't find a configured compressor %s for file %s", name.c_str(), FileName.c_str());
}
if (compressor == compressors.end())
- return _error->Error("Can't find a match for specified compressor mode for file %s", FileName.c_str());
+ return FileFdError("Can't find a match for specified compressor mode for file %s", FileName.c_str());
return Open(FileName, Mode, *compressor, Perms);
}
bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Compressor const &compressor, unsigned long const Perms)
{
Close();
- d = new FileFdPrivate;
- d->openmode = Mode;
Flags = AutoClose;
if ((Mode & WriteOnly) != WriteOnly && (Mode & (Atomic | Create | Empty | Exclusive)) != 0)
- return _error->Error("ReadOnly mode for %s doesn't accept additional flags!", FileName.c_str());
+ return FileFdError("ReadOnly mode for %s doesn't accept additional flags!", FileName.c_str());
if ((Mode & ReadWrite) == 0)
- return _error->Error("No openmode provided in FileFd::Open for %s", FileName.c_str());
+ return FileFdError("No openmode provided in FileFd::Open for %s", FileName.c_str());
if ((Mode & Atomic) == Atomic)
{
Flags |= Replace;
- char *name = strdup((FileName + ".XXXXXX").c_str());
- TemporaryFileName = string(mktemp(name));
- free(name);
}
else if ((Mode & (Exclusive | Create)) == (Exclusive | Create))
{
if_FLAGGED_SET(Create, O_CREAT);
if_FLAGGED_SET(Empty, O_TRUNC);
if_FLAGGED_SET(Exclusive, O_EXCL);
- else if_FLAGGED_SET(Atomic, O_EXCL);
#undef if_FLAGGED_SET
- if (TemporaryFileName.empty() == false)
- iFd = open(TemporaryFileName.c_str(), fileflags, Perms);
+ if ((Mode & Atomic) == Atomic)
+ {
+ char *name = strdup((FileName + ".XXXXXX").c_str());
+
+ if((iFd = mkstemp(name)) == -1)
+ {
+ free(name);
+ return FileFdErrno("mkstemp", "Could not create temporary file for %s", FileName.c_str());
+ }
+
+ TemporaryFileName = string(name);
+ free(name);
+
+ if(Perms != 600 && fchmod(iFd, Perms) == -1)
+ return FileFdErrno("fchmod", "Could not change permissions for temporary file %s", TemporaryFileName.c_str());
+ }
else
iFd = open(FileName.c_str(), fileflags, Perms);
+ this->FileName = FileName;
if (iFd == -1 || OpenInternDescriptor(Mode, compressor) == false)
{
if (iFd != -1)
close (iFd);
iFd = -1;
}
- return _error->Errno("open",_("Could not open file %s"), FileName.c_str());
+ return FileFdErrno("open",_("Could not open file %s"), FileName.c_str());
}
- this->FileName = FileName;
SetCloseExec(iFd,true);
return true;
}
std::vector<APT::Configuration::Compressor> const compressors = APT::Configuration::getCompressors();
std::vector<APT::Configuration::Compressor>::const_iterator compressor = compressors.begin();
std::string name;
+
+ // compat with the old API
+ if (Mode == ReadOnlyGzip && Compress == None)
+ Compress = Gzip;
+
switch (Compress)
{
case None: name = "."; break;
case Xz: name = "xz"; break;
case Auto:
case Extension:
- return _error->Error("Opening Fd %d in Auto or Extension compression mode is not supported", Fd);
+ if (AutoClose == true && Fd != -1)
+ close(Fd);
+ return FileFdError("Opening Fd %d in Auto or Extension compression mode is not supported", Fd);
}
for (; compressor != compressors.end(); ++compressor)
if (compressor->Name == name)
break;
if (compressor == compressors.end())
- return _error->Error("Can't find a configured compressor %s for file %s", name.c_str(), FileName.c_str());
-
+ {
+ if (AutoClose == true && Fd != -1)
+ close(Fd);
+ return FileFdError("Can't find a configured compressor %s for file %s", name.c_str(), FileName.c_str());
+ }
return OpenDescriptor(Fd, Mode, *compressor, AutoClose);
}
bool FileFd::OpenDescriptor(int Fd, unsigned int const Mode, APT::Configuration::Compressor const &compressor, bool AutoClose)
{
Close();
- d = new FileFdPrivate;
- d->openmode = Mode;
Flags = (AutoClose) ? FileFd::AutoClose : 0;
- iFd = Fd;
- if (OpenInternDescriptor(Mode, compressor) == false)
+ if (AutoClose == false && (
+#ifdef HAVE_ZLIB
+ compressor.Name == "gzip" ||
+#endif
+#ifdef HAVE_BZ2
+ compressor.Name == "bzip2" ||
+#endif
+ false))
{
- if (AutoClose)
- close (iFd);
- return _error->Errno("gzdopen",_("Could not open file descriptor %d"), Fd);
+ // Need to duplicate fd here or gzclose for cleanup will close the fd as well
+ iFd = dup(Fd);
}
+ else
+ iFd = Fd;
this->FileName = "";
+ if (Fd == -1 || OpenInternDescriptor(Mode, compressor) == false)
+ {
+ if (iFd != -1 && (
+#ifdef HAVE_ZLIB
+ compressor.Name == "gzip" ||
+#endif
+#ifdef HAVE_BZ2
+ compressor.Name == "bzip2" ||
+#endif
+ AutoClose == true))
+ {
+ close (iFd);
+ iFd = -1;
+ }
+ return FileFdError(_("Could not open file descriptor %d"), Fd);
+ }
return true;
}
bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::Compressor const &compressor)
{
- d->compressor = compressor;
if (compressor.Name == "." || compressor.Binary.empty() == true)
return true;
-#if APT_USE_ZLIB
- else if (compressor.Name == "gzip")
+
+ if (d == NULL)
{
+ d = new FileFdPrivate();
+ d->openmode = Mode;
+ d->compressor = compressor;
+ }
+
+#ifdef HAVE_ZLIB
+ if (compressor.Name == "gzip")
+ {
+ if (d->gz != NULL)
+ {
+ gzclose(d->gz);
+ d->gz = NULL;
+ }
if ((Mode & ReadWrite) == ReadWrite)
d->gz = gzdopen(iFd, "r+");
else if ((Mode & WriteOnly) == WriteOnly)
d->gz = gzdopen(iFd, "w");
else
- d->gz = gzdopen (iFd, "r");
+ d->gz = gzdopen(iFd, "r");
if (d->gz == NULL)
return false;
Flags |= Compressed;
return true;
}
#endif
+#ifdef HAVE_BZ2
+ if (compressor.Name == "bzip2")
+ {
+ if (d->bz2 != NULL)
+ {
+ BZ2_bzclose(d->bz2);
+ d->bz2 = NULL;
+ }
+ if ((Mode & ReadWrite) == ReadWrite)
+ d->bz2 = BZ2_bzdopen(iFd, "r+");
+ else if ((Mode & WriteOnly) == WriteOnly)
+ d->bz2 = BZ2_bzdopen(iFd, "w");
+ else
+ d->bz2 = BZ2_bzdopen(iFd, "r");
+ if (d->bz2 == NULL)
+ return false;
+ Flags |= Compressed;
+ return true;
+ }
+#endif
+
+ // collect zombies here in case we reopen
+ if (d->compressor_pid > 0)
+ ExecWait(d->compressor_pid, "FileFdCompressor", true);
if ((Mode & ReadWrite) == ReadWrite)
- return _error->Error("ReadWrite mode is not supported for file %s", FileName.c_str());
+ return FileFdError("ReadWrite mode is not supported for file %s", FileName.c_str());
bool const Comp = (Mode & WriteOnly) == WriteOnly;
- // Handle 'decompression' of empty files
if (Comp == false)
{
+ // Handle 'decompression' of empty files
struct stat Buf;
fstat(iFd, &Buf);
if (Buf.st_size == 0 && S_ISFIFO(Buf.st_mode) == false)
// We don't need the file open - instead let the compressor open it
// as he properly knows better how to efficiently read from 'his' file
if (FileName.empty() == false)
+ {
close(iFd);
+ iFd = -1;
+ }
}
// Create a data pipe
int Pipe[2] = {-1,-1};
if (pipe(Pipe) != 0)
- return _error->Errno("pipe",_("Failed to create subprocess IPC"));
+ return FileFdErrno("pipe",_("Failed to create subprocess IPC"));
for (int J = 0; J != 2; J++)
SetCloseExec(Pipe[J],true);
dup2(d->compressed_fd,STDIN_FILENO);
dup2(Pipe[1],STDOUT_FILENO);
}
+ int const nullfd = open("/dev/null", O_WRONLY);
+ if (nullfd != -1)
+ {
+ dup2(nullfd,STDERR_FILENO);
+ close(nullfd);
+ }
SetCloseExec(STDOUT_FILENO,false);
SetCloseExec(STDIN_FILENO,false);
close(Pipe[0]);
else
close(Pipe[1]);
- if (Comp == true || FileName.empty() == true)
- close(d->compressed_fd);
return true;
}
FileFd::~FileFd()
{
Close();
+ if (d != NULL)
+ d->CloseDown(FileName);
+ delete d;
+ d = NULL;
}
/*}}}*/
// FileFd::Read - Read a bit of the file /*{{{*/
gracefully. */
bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
{
- int Res;
+ ssize_t Res;
errno = 0;
if (Actual != 0)
*Actual = 0;
*((char *)To) = '\0';
do
{
-#if APT_USE_ZLIB
- if (d->gz != NULL)
- Res = gzread(d->gz,To,Size);
+#ifdef HAVE_ZLIB
+ if (d != NULL && d->gz != NULL)
+ Res = gzread(d->gz,To,Size);
+ else
+#endif
+#ifdef HAVE_BZ2
+ if (d != NULL && d->bz2 != NULL)
+ Res = BZ2_bzread(d->bz2,To,Size);
else
#endif
Res = read(iFd,To,Size);
- if (Res < 0 && errno == EINTR)
- continue;
+
if (Res < 0)
{
- Flags |= Fail;
- return _error->Errno("read",_("Read error"));
+ if (errno == EINTR)
+ continue;
+#ifdef HAVE_ZLIB
+ if (d != NULL && d->gz != NULL)
+ {
+ int err;
+ char const * const errmsg = gzerror(d->gz, &err);
+ if (err != Z_ERRNO)
+ return FileFdError("gzread: %s (%d: %s)", _("Read error"), err, errmsg);
+ }
+#endif
+#ifdef HAVE_BZ2
+ if (d != NULL && d->bz2 != NULL)
+ {
+ int err;
+ char const * const errmsg = BZ2_bzerror(d->bz2, &err);
+ if (err != BZ_IO_ERROR)
+ return FileFdError("BZ2_bzread: %s (%d: %s)", _("Read error"), err, errmsg);
+ }
+#endif
+ return FileFdErrno("read",_("Read error"));
}
To = (char *)To + Res;
Size -= Res;
+ if (d != NULL)
+ d->seekpos += Res;
if (Actual != 0)
*Actual += Res;
}
Flags |= HitEof;
return true;
}
-
- Flags |= Fail;
- return _error->Error(_("read, still have %llu to read but none left"), Size);
+
+ return FileFdError(_("read, still have %llu to read but none left"), Size);
}
/*}}}*/
// FileFd::ReadLine - Read a complete line from the file /*{{{*/
char* FileFd::ReadLine(char *To, unsigned long long const Size)
{
*To = '\0';
-#if APT_USE_ZLIB
- if (d->gz != NULL)
+#ifdef HAVE_ZLIB
+ if (d != NULL && d->gz != NULL)
return gzgets(d->gz, To, Size);
#endif
unsigned long long read = 0;
- if (Read(To, Size, &read) == false)
+ while ((Size - 1) != read)
+ {
+ unsigned long long done = 0;
+ if (Read(To + read, 1, &done) == false)
+ return NULL;
+ if (done == 0)
+ break;
+ if (To[read++] == '\n')
+ break;
+ }
+ if (read == 0)
return NULL;
- char* c = To;
- for (; *c != '\n' && *c != '\0' && read != 0; --read, ++c)
- ; // find the end of the line
- if (*c != '\0')
- *c = '\0';
- if (read != 0)
- Seek(Tell() - read);
+ To[read] = '\0';
return To;
}
/*}}}*/
/* */
bool FileFd::Write(const void *From,unsigned long long Size)
{
- int Res;
+ ssize_t Res;
errno = 0;
do
{
-#if APT_USE_ZLIB
- if (d->gz != NULL)
+#ifdef HAVE_ZLIB
+ if (d != NULL && d->gz != NULL)
Res = gzwrite(d->gz,From,Size);
else
+#endif
+#ifdef HAVE_BZ2
+ if (d != NULL && d->bz2 != NULL)
+ Res = BZ2_bzwrite(d->bz2,(void*)From,Size);
+ else
#endif
Res = write(iFd,From,Size);
if (Res < 0 && errno == EINTR)
continue;
if (Res < 0)
{
- Flags |= Fail;
- return _error->Errno("write",_("Write error"));
+#ifdef HAVE_ZLIB
+ if (d != NULL && d->gz != NULL)
+ {
+ int err;
+ char const * const errmsg = gzerror(d->gz, &err);
+ if (err != Z_ERRNO)
+ return FileFdError("gzwrite: %s (%d: %s)", _("Write error"), err, errmsg);
+ }
+#endif
+#ifdef HAVE_BZ2
+ if (d != NULL && d->bz2 != NULL)
+ {
+ int err;
+ char const * const errmsg = BZ2_bzerror(d->bz2, &err);
+ if (err != BZ_IO_ERROR)
+ return FileFdError("BZ2_bzwrite: %s (%d: %s)", _("Write error"), err, errmsg);
+ }
+#endif
+ return FileFdErrno("write",_("Write error"));
}
From = (char *)From + Res;
Size -= Res;
+ if (d != NULL)
+ d->seekpos += Res;
}
while (Res > 0 && Size > 0);
if (Size == 0)
return true;
-
- Flags |= Fail;
+
+ return FileFdError(_("write, still have %llu to write but couldn't"), Size);
+}
+bool FileFd::Write(int Fd, const void *From, unsigned long long Size)
+{
+ ssize_t Res;
+ errno = 0;
+ do
+ {
+ Res = write(Fd,From,Size);
+ if (Res < 0 && errno == EINTR)
+ continue;
+ if (Res < 0)
+ return _error->Errno("write",_("Write error"));
+
+ From = (char *)From + Res;
+ Size -= Res;
+ }
+ while (Res > 0 && Size > 0);
+
+ if (Size == 0)
+ return true;
+
return _error->Error(_("write, still have %llu to write but couldn't"), Size);
}
/*}}}*/
/* */
bool FileFd::Seek(unsigned long long To)
{
- if (d->pipe == true)
+ if (d != NULL && (d->pipe == true
+#ifdef HAVE_BZ2
+ || d->bz2 != NULL
+#endif
+ ))
{
+ // Our poor man seeking in pipes is costly, so try to avoid it
+ unsigned long long seekpos = Tell();
+ if (seekpos == To)
+ return true;
+ else if (seekpos < To)
+ return Skip(To - seekpos);
+
if ((d->openmode & ReadOnly) != ReadOnly)
- return _error->Error("Reopen is only implemented for read-only files!");
- close(iFd);
- iFd = 0;
+ return FileFdError("Reopen is only implemented for read-only files!");
+#ifdef HAVE_BZ2
+ if (d->bz2 != NULL)
+ {
+ BZ2_bzclose(d->bz2);
+ d->bz2 = NULL;
+ }
+#endif
+ if (iFd != -1)
+ close(iFd);
+ iFd = -1;
if (TemporaryFileName.empty() == false)
iFd = open(TemporaryFileName.c_str(), O_RDONLY);
else if (FileName.empty() == false)
if (d->compressed_fd > 0)
if (lseek(d->compressed_fd, 0, SEEK_SET) != 0)
iFd = d->compressed_fd;
- if (iFd <= 0)
- return _error->Error("Reopen is not implemented for pipes opened with FileFd::OpenDescriptor()!");
+ if (iFd < 0)
+ return FileFdError("Reopen is not implemented for pipes opened with FileFd::OpenDescriptor()!");
}
if (OpenInternDescriptor(d->openmode, d->compressor) == false)
- return _error->Error("Seek on file %s because it couldn't be reopened", FileName.c_str());
+ return FileFdError("Seek on file %s because it couldn't be reopened", FileName.c_str());
if (To != 0)
return Skip(To);
+
+ d->seekpos = To;
return true;
}
- int res;
-#if APT_USE_ZLIB
- if (d->gz)
+ off_t res;
+#ifdef HAVE_ZLIB
+ if (d != NULL && d->gz)
res = gzseek(d->gz,To,SEEK_SET);
else
#endif
res = lseek(iFd,To,SEEK_SET);
- if (res != (signed)To)
- {
- Flags |= Fail;
- return _error->Error("Unable to seek to %llu", To);
- }
-
+ if (res != (off_t)To)
+ return FileFdError("Unable to seek to %llu", To);
+
+ if (d != NULL)
+ d->seekpos = To;
return true;
}
/*}}}*/
/* */
bool FileFd::Skip(unsigned long long Over)
{
- int res;
-#if APT_USE_ZLIB
- if (d->gz != NULL)
+ if (d != NULL && (d->pipe == true
+#ifdef HAVE_BZ2
+ || d->bz2 != NULL
+#endif
+ ))
+ {
+ d->seekpos += Over;
+ char buffer[1024];
+ while (Over != 0)
+ {
+ unsigned long long toread = std::min((unsigned long long) sizeof(buffer), Over);
+ if (Read(buffer, toread) == false)
+ return FileFdError("Unable to seek ahead %llu",Over);
+ Over -= toread;
+ }
+ return true;
+ }
+
+ off_t res;
+#ifdef HAVE_ZLIB
+ if (d != NULL && d->gz != NULL)
res = gzseek(d->gz,Over,SEEK_CUR);
else
#endif
res = lseek(iFd,Over,SEEK_CUR);
if (res < 0)
- {
- Flags |= Fail;
- return _error->Error("Unable to seek ahead %llu",Over);
- }
-
+ return FileFdError("Unable to seek ahead %llu",Over);
+ if (d != NULL)
+ d->seekpos = res;
+
return true;
}
/*}}}*/
/* */
bool FileFd::Truncate(unsigned long long To)
{
- if (d->gz != NULL)
- {
- Flags |= Fail;
- return _error->Error("Truncating gzipped files is not implemented (%s)", FileName.c_str());
- }
+#if defined HAVE_ZLIB || defined HAVE_BZ2
+ if (d != NULL && (d->gz != NULL || d->bz2 != NULL))
+ return FileFdError("Truncating compressed files is not implemented (%s)", FileName.c_str());
+#endif
if (ftruncate(iFd,To) != 0)
- {
- Flags |= Fail;
- return _error->Error("Unable to truncate to %llu",To);
- }
-
+ return FileFdError("Unable to truncate to %llu",To);
+
return true;
}
/*}}}*/
/* */
unsigned long long FileFd::Tell()
{
+ // In theory, we could just return seekpos here always instead of
+ // seeking around, but not all users of FileFd use always Seek() and co
+ // so d->seekpos isn't always true and we can just use it as a hint if
+ // we have nothing else, but not always as an authority…
+ if (d != NULL && (d->pipe == true
+#ifdef HAVE_BZ2
+ || d->bz2 != NULL
+#endif
+ ))
+ return d->seekpos;
+
off_t Res;
-#if APT_USE_ZLIB
- if (d->gz != NULL)
+#ifdef HAVE_ZLIB
+ if (d != NULL && d->gz != NULL)
Res = gztell(d->gz);
else
#endif
Res = lseek(iFd,0,SEEK_CUR);
if (Res == (off_t)-1)
- _error->Errno("lseek","Failed to determine the current file position");
+ FileFdErrno("lseek","Failed to determine the current file position");
+ if (d != NULL)
+ d->seekpos = Res;
return Res;
}
/*}}}*/
unsigned long long FileFd::FileSize()
{
struct stat Buf;
- if (d->pipe == false && fstat(iFd,&Buf) != 0)
- return _error->Errno("fstat","Unable to determine the file size");
+ if ((d == NULL || d->pipe == false) && fstat(iFd,&Buf) != 0)
+ return FileFdErrno("fstat","Unable to determine the file size");
// for compressor pipes st_size is undefined and at 'best' zero
- if (d->pipe == true || S_ISFIFO(Buf.st_mode))
+ if ((d != NULL && d->pipe == true) || S_ISFIFO(Buf.st_mode))
{
// we set it here, too, as we get the info here for free
// in theory the Open-methods should take care of it already
- d->pipe = true;
+ if (d != NULL)
+ d->pipe = true;
if (stat(FileName.c_str(), &Buf) != 0)
- return _error->Errno("stat","Unable to determine the file size");
+ return FileFdErrno("stat","Unable to determine the file size");
}
return Buf.st_size;
// for compressor pipes st_size is undefined and at 'best' zero,
// so we 'read' the content and 'seek' back - see there
- if (d->pipe == true)
+ if (d != NULL && (d->pipe == true
+#ifdef HAVE_BZ2
+ || (d->bz2 && size > 0)
+#endif
+ ))
{
- // FIXME: If we have read first and then FileSize() the report is wrong
- size = 0;
+ unsigned long long const oldSeek = Tell();
char ignore[1000];
unsigned long long read = 0;
do {
- Read(ignore, sizeof(ignore), &read);
- size += read;
+ if (Read(ignore, sizeof(ignore), &read) == false)
+ {
+ Seek(oldSeek);
+ return 0;
+ }
} while(read != 0);
- Seek(0);
+ size = Tell();
+ Seek(oldSeek);
}
-#if APT_USE_ZLIB
+#ifdef HAVE_ZLIB
// only check gzsize if we are actually a gzip file, just checking for
// "gz" is not sufficient as uncompressed files could be opened with
// gzopen in "direct" mode as well
- else if (d->gz && !gzdirect(d->gz) && size > 0)
+ else if (d != NULL && d->gz && !gzdirect(d->gz) && size > 0)
{
+ off_t const oldPos = lseek(iFd,0,SEEK_CUR);
/* 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 */
// FIXME: Size for gz-files is limited by 32bit… no largefile support
- 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;
+ {
+ FileFdErrno("lseek","Unable to seek to end of gzipped file");
+ return 0;
+ }
+ size = 0;
if (read(iFd, &size, 4) != 4)
- return _error->Errno("read","Unable to read original size of gzipped file");
+ {
+ FileFdErrno("read","Unable to read original size of gzipped file");
+ return 0;
+ }
#ifdef WORDS_BIGENDIAN
uint32_t tmp_size = size;
size = tmp_size;
#endif
- if (lseek(iFd, orig_pos, SEEK_SET) < 0)
- return _error->Errno("lseek","Unable to seek in gzipped file");
+ if (lseek(iFd, oldPos, SEEK_SET) < 0)
+ {
+ FileFdErrno("lseek","Unable to seek in gzipped file");
+ return 0;
+ }
+
return size;
}
#endif
time_t FileFd::ModificationTime()
{
struct stat Buf;
- if (d->pipe == false && fstat(iFd,&Buf) != 0)
+ if ((d == NULL || d->pipe == false) && fstat(iFd,&Buf) != 0)
{
- _error->Errno("fstat","Unable to determine the modification time of file %s", FileName.c_str());
+ FileFdErrno("fstat","Unable to determine the modification time of file %s", FileName.c_str());
return 0;
}
// for compressor pipes st_size is undefined and at 'best' zero
- if (d->pipe == true || S_ISFIFO(Buf.st_mode))
+ if ((d != NULL && d->pipe == true) || S_ISFIFO(Buf.st_mode))
{
// we set it here, too, as we get the info here for free
// in theory the Open-methods should take care of it already
- d->pipe = true;
+ if (d != NULL)
+ d->pipe = true;
if (stat(FileName.c_str(), &Buf) != 0)
{
- _error->Errno("fstat","Unable to determine the modification time of file %s", FileName.c_str());
+ FileFdErrno("fstat","Unable to determine the modification time of file %s", FileName.c_str());
return 0;
}
}
bool Res = true;
if ((Flags & AutoClose) == AutoClose)
{
-#if APT_USE_ZLIB
- if (d != NULL && d->gz != NULL) {
- int const e = gzclose(d->gz);
- // gzdopen() on empty files always fails with "buffer error" here, ignore that
- if (e != 0 && e != Z_BUF_ERROR)
- Res &= _error->Errno("close",_("Problem closing the gzip file %s"), FileName.c_str());
- } else
-#endif
- if (iFd > 0 && close(iFd) != 0)
- Res &= _error->Errno("close",_("Problem closing the file %s"), FileName.c_str());
+ if ((Flags & Compressed) != Compressed && iFd > 0 && close(iFd) != 0)
+ Res &= _error->Errno("close",_("Problem closing the file %s"), FileName.c_str());
+
+ if (d != NULL)
+ {
+ Res &= d->CloseDown(FileName);
+ delete d;
+ d = NULL;
+ }
}
- if ((Flags & Replace) == Replace && iFd >= 0) {
+ if ((Flags & Replace) == Replace) {
if (rename(TemporaryFileName.c_str(), FileName.c_str()) != 0)
Res &= _error->Errno("rename",_("Problem renaming the file %s to %s"), TemporaryFileName.c_str(), FileName.c_str());
if (unlink(FileName.c_str()) != 0)
Res &= _error->WarningE("unlnk",_("Problem unlinking the file %s"), FileName.c_str());
- if (d != NULL)
- {
- if (d->compressor_pid > 0)
- ExecWait(d->compressor_pid, "FileFdCompressor", true);
- delete d;
- d = NULL;
- }
-
+ if (Res == false)
+ Flags |= Fail;
return Res;
}
/*}}}*/
/* */
bool FileFd::Sync()
{
-#ifdef _POSIX_SYNCHRONIZED_IO
if (fsync(iFd) != 0)
- return _error->Errno("sync",_("Problem syncing the file"));
-#endif
+ return FileFdErrno("sync",_("Problem syncing the file"));
return true;
}
/*}}}*/
+// FileFd::FileFdErrno - set Fail and call _error->Errno *{{{*/
+bool FileFd::FileFdErrno(const char *Function, const char *Description,...)
+{
+ Flags |= Fail;
+ va_list args;
+ size_t msgSize = 400;
+ int const errsv = errno;
+ while (true)
+ {
+ va_start(args,Description);
+ if (_error->InsertErrno(GlobalError::ERROR, Function, Description, args, errsv, msgSize) == false)
+ break;
+ va_end(args);
+ }
+ return false;
+}
+ /*}}}*/
+// FileFd::FileFdError - set Fail and call _error->Error *{{{*/
+bool FileFd::FileFdError(const char *Description,...) {
+ Flags |= Fail;
+ va_list args;
+ size_t msgSize = 400;
+ while (true)
+ {
+ va_start(args,Description);
+ if (_error->Insert(GlobalError::ERROR, Description, args, msgSize) == false)
+ break;
+ va_end(args);
+ }
+ return false;
+}
+ /*}}}*/
gzFile FileFd::gzFd() { return (gzFile) d->gz; }
+
+
+// Glob - wrapper around "glob()" /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+std::vector<std::string> Glob(std::string const &pattern, int flags)
+{
+ std::vector<std::string> result;
+ glob_t globbuf;
+ int glob_res;
+ unsigned int i;
+
+ glob_res = glob(pattern.c_str(), flags, NULL, &globbuf);
+
+ if (glob_res != 0)
+ {
+ if(glob_res != GLOB_NOMATCH) {
+ _error->Errno("glob", "Problem with glob");
+ return result;
+ }
+ }
+
+ // append results
+ for(i=0;i<globbuf.gl_pathc;i++)
+ result.push_back(string(globbuf.gl_pathv[i]));
+
+ globfree(&globbuf);
+ return result;
+}
+ /*}}}*/
projects / apt.git / blobdiff