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@@ -905,8 +905,6 @@ bool FileFd::Open(string FileName,unsigned int const Mode,CompressMode Compress,
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bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Compressor const &compressor, unsigned long const Perms)
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{
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Close();
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- d = new FileFdPrivate;
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- d->openmode = Mode;
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Flags = AutoClose;
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if ((Mode & WriteOnly) != WriteOnly && (Mode & (Atomic | Create | Empty | Exclusive)) != 0)
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@@ -1000,8 +998,6 @@ bool FileFd::OpenDescriptor(int Fd, unsigned int const Mode, CompressMode Compre
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bool FileFd::OpenDescriptor(int Fd, unsigned int const Mode, APT::Configuration::Compressor const &compressor, bool AutoClose)
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{
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Close();
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- d = new FileFdPrivate;
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- d->openmode = Mode;
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Flags = (AutoClose) ? FileFd::AutoClose : 0;
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iFd = Fd;
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this->FileName = "";
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@@ -1015,12 +1011,24 @@ bool FileFd::OpenDescriptor(int Fd, unsigned int const Mode, APT::Configuration:
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}
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bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::Compressor const &compressor)
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{
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- d->compressor = compressor;
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if (compressor.Name == "." || compressor.Binary.empty() == true)
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return true;
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+
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+ if (d == NULL)
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+ {
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+ d = new FileFdPrivate();
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+ d->openmode = Mode;
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+ d->compressor = compressor;
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+ }
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+
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#ifdef HAVE_ZLIB
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- else if (compressor.Name == "gzip")
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+ if (compressor.Name == "gzip")
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{
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+ if (d->gz != NULL)
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+ {
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+ gzclose(d->gz);
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+ d->gz = NULL;
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+ }
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if ((Mode & ReadWrite) == ReadWrite)
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d->gz = gzdopen(iFd, "r+");
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else if ((Mode & WriteOnly) == WriteOnly)
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@@ -1034,8 +1042,13 @@ bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::C
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}
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#endif
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#ifdef HAVE_BZ2
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- else if (compressor.Name == "bzip2")
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+ if (compressor.Name == "bzip2")
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{
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+ if (d->bz2 != NULL)
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+ {
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+ BZ2_bzclose(d->bz2);
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+ d->bz2 = NULL;
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+ }
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if ((Mode & ReadWrite) == ReadWrite)
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d->bz2 = BZ2_bzdopen(iFd, "r+");
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else if ((Mode & WriteOnly) == WriteOnly)
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@@ -1049,14 +1062,20 @@ bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::C
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}
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#endif
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+ // collect zombies here in case we reopen
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+ if (d->compressor_pid > 0)
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+ ExecWait(d->compressor_pid, "FileFdCompressor", true);
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if ((Mode & ReadWrite) == ReadWrite)
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+ {
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+ Flags |= Fail;
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return _error->Error("ReadWrite mode is not supported for file %s", FileName.c_str());
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+ }
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bool const Comp = (Mode & WriteOnly) == WriteOnly;
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- // Handle 'decompression' of empty files
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if (Comp == false)
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{
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+ // Handle 'decompression' of empty files
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struct stat Buf;
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fstat(iFd, &Buf);
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if (Buf.st_size == 0 && S_ISFIFO(Buf.st_mode) == false)
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@@ -1065,13 +1084,19 @@ bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::C
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// We don't need the file open - instead let the compressor open it
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// as he properly knows better how to efficiently read from 'his' file
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if (FileName.empty() == false)
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+ {
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close(iFd);
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+ iFd = -1;
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+ }
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}
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// Create a data pipe
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int Pipe[2] = {-1,-1};
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if (pipe(Pipe) != 0)
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+ {
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+ Flags |= Fail;
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return _error->Errno("pipe",_("Failed to create subprocess IPC"));
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+ }
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for (int J = 0; J != 2; J++)
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SetCloseExec(Pipe[J],true);
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@@ -1133,7 +1158,7 @@ bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::C
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close(Pipe[0]);
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else
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close(Pipe[1]);
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- if (Comp == true || FileName.empty() == true)
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+ if ((Comp == true || FileName.empty() == true) && d->compressed_fd != -1)
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close(d->compressed_fd);
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return true;
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@@ -1162,12 +1187,12 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
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do
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{
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#ifdef HAVE_ZLIB
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- if (d->gz != NULL)
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+ if (d != NULL && d->gz != NULL)
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Res = gzread(d->gz,To,Size);
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else
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#endif
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#ifdef HAVE_BZ2
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- if (d->bz2 != NULL)
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+ if (d != NULL && d->bz2 != NULL)
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Res = BZ2_bzread(d->bz2,To,Size);
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else
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#endif
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@@ -1179,7 +1204,7 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
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continue;
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Flags |= Fail;
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#ifdef HAVE_ZLIB
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- if (d->gz != NULL)
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+ if (d != NULL && d->gz != NULL)
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{
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int err;
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char const * const errmsg = gzerror(d->gz, &err);
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@@ -1188,7 +1213,7 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
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}
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#endif
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#ifdef HAVE_BZ2
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- if (d->bz2 != NULL)
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+ if (d != NULL && d->bz2 != NULL)
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{
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int err;
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char const * const errmsg = BZ2_bzerror(d->bz2, &err);
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@@ -1201,7 +1226,8 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
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To = (char *)To + Res;
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Size -= Res;
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- d->seekpos += Res;
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+ if (d != NULL)
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+ d->seekpos += Res;
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if (Actual != 0)
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*Actual += Res;
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}
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@@ -1229,7 +1255,7 @@ char* FileFd::ReadLine(char *To, unsigned long long const Size)
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{
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*To = '\0';
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#ifdef HAVE_ZLIB
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- if (d->gz != NULL)
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+ if (d != NULL && d->gz != NULL)
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return gzgets(d->gz, To, Size);
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#endif
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@@ -1260,12 +1286,12 @@ bool FileFd::Write(const void *From,unsigned long long Size)
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do
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{
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#ifdef HAVE_ZLIB
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- if (d->gz != NULL)
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+ if (d != NULL && d->gz != NULL)
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Res = gzwrite(d->gz,From,Size);
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else
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#endif
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#ifdef HAVE_BZ2
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- if (d->bz2 != NULL)
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+ if (d != NULL && d->bz2 != NULL)
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Res = BZ2_bzwrite(d->bz2,(void*)From,Size);
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else
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#endif
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@@ -1276,7 +1302,7 @@ bool FileFd::Write(const void *From,unsigned long long Size)
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{
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Flags |= Fail;
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#ifdef HAVE_ZLIB
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- if (d->gz != NULL)
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+ if (d != NULL && d->gz != NULL)
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{
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int err;
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char const * const errmsg = gzerror(d->gz, &err);
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@@ -1285,7 +1311,7 @@ bool FileFd::Write(const void *From,unsigned long long Size)
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}
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#endif
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#ifdef HAVE_BZ2
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- if (d->bz2 != NULL)
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+ if (d != NULL && d->bz2 != NULL)
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{
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int err;
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char const * const errmsg = BZ2_bzerror(d->bz2, &err);
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@@ -1298,7 +1324,8 @@ bool FileFd::Write(const void *From,unsigned long long Size)
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From = (char *)From + Res;
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Size -= Res;
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- d->seekpos += Res;
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+ if (d != NULL)
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+ d->seekpos += Res;
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}
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while (Res > 0 && Size > 0);
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@@ -1336,11 +1363,11 @@ bool FileFd::Write(int Fd, const void *From, unsigned long long Size)
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/* */
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bool FileFd::Seek(unsigned long long To)
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{
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- if (d->pipe == true
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+ if (d != NULL && (d->pipe == true
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#ifdef HAVE_BZ2
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- || d->bz2 != NULL
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+ || d->bz2 != NULL
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#endif
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- )
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+ ))
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{
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// Our poor man seeking in pipes is costly, so try to avoid it
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unsigned long long seekpos = Tell();
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@@ -1350,13 +1377,17 @@ bool FileFd::Seek(unsigned long long To)
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return Skip(To - seekpos);
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if ((d->openmode & ReadOnly) != ReadOnly)
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+ {
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+ Flags |= Fail;
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return _error->Error("Reopen is only implemented for read-only files!");
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+ }
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#ifdef HAVE_BZ2
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if (d->bz2 != NULL)
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BZ2_bzclose(d->bz2);
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#endif
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- close(iFd);
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- iFd = 0;
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+ if (iFd != -1)
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+ close(iFd);
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+ iFd = -1;
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if (TemporaryFileName.empty() == false)
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iFd = open(TemporaryFileName.c_str(), O_RDONLY);
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else if (FileName.empty() == false)
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@@ -1367,11 +1398,17 @@ bool FileFd::Seek(unsigned long long To)
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if (lseek(d->compressed_fd, 0, SEEK_SET) != 0)
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iFd = d->compressed_fd;
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if (iFd <= 0)
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+ {
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+ Flags |= Fail;
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return _error->Error("Reopen is not implemented for pipes opened with FileFd::OpenDescriptor()!");
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+ }
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}
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if (OpenInternDescriptor(d->openmode, d->compressor) == false)
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+ {
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+ Flags |= Fail;
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return _error->Error("Seek on file %s because it couldn't be reopened", FileName.c_str());
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+ }
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if (To != 0)
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return Skip(To);
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@@ -1381,7 +1418,7 @@ bool FileFd::Seek(unsigned long long To)
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}
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int res;
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#ifdef HAVE_ZLIB
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- if (d->gz)
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+ if (d != NULL && d->gz)
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res = gzseek(d->gz,To,SEEK_SET);
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else
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#endif
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@@ -1392,7 +1429,8 @@ bool FileFd::Seek(unsigned long long To)
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return _error->Error("Unable to seek to %llu", To);
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}
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- d->seekpos = To;
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+ if (d != NULL)
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+ d->seekpos = To;
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return true;
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}
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/*}}}*/
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@@ -1401,11 +1439,11 @@ bool FileFd::Seek(unsigned long long To)
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/* */
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bool FileFd::Skip(unsigned long long Over)
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{
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- if (d->pipe == true
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+ if (d != NULL && (d->pipe == true
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#ifdef HAVE_BZ2
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- || d->bz2 != NULL
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+ || d->bz2 != NULL
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#endif
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- )
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+ ))
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{
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d->seekpos += Over;
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char buffer[1024];
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@@ -1413,7 +1451,10 @@ bool FileFd::Skip(unsigned long long Over)
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{
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unsigned long long toread = std::min((unsigned long long) sizeof(buffer), Over);
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if (Read(buffer, toread) == false)
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+ {
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+ Flags |= Fail;
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return _error->Error("Unable to seek ahead %llu",Over);
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+ }
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Over -= toread;
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}
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return true;
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@@ -1421,7 +1462,7 @@ bool FileFd::Skip(unsigned long long Over)
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int res;
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#ifdef HAVE_ZLIB
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- if (d->gz != NULL)
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+ if (d != NULL && d->gz != NULL)
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res = gzseek(d->gz,Over,SEEK_CUR);
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else
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#endif
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@@ -1431,7 +1472,8 @@ bool FileFd::Skip(unsigned long long Over)
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Flags |= Fail;
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return _error->Error("Unable to seek ahead %llu",Over);
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}
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- d->seekpos = res;
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+ if (d != NULL)
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+ d->seekpos = res;
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return true;
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}
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@@ -1442,7 +1484,7 @@ bool FileFd::Skip(unsigned long long Over)
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bool FileFd::Truncate(unsigned long long To)
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{
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#if defined HAVE_ZLIB || defined HAVE_BZ2
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- if (d->gz != NULL || d->bz2 != NULL)
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+ if (d != NULL && (d->gz != NULL || d->bz2 != NULL))
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{
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Flags |= Fail;
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return _error->Error("Truncating compressed files is not implemented (%s)", FileName.c_str());
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@@ -1466,23 +1508,27 @@ unsigned long long FileFd::Tell()
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// seeking around, but not all users of FileFd use always Seek() and co
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// so d->seekpos isn't always true and we can just use it as a hint if
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// we have nothing else, but not always as an authority…
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- if (d->pipe == true
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+ if (d != NULL && (d->pipe == true
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#ifdef HAVE_BZ2
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- || d->bz2 != NULL
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+ || d->bz2 != NULL
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#endif
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- )
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+ ))
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return d->seekpos;
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off_t Res;
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#ifdef HAVE_ZLIB
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- if (d->gz != NULL)
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+ if (d != NULL && d->gz != NULL)
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Res = gztell(d->gz);
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else
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#endif
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Res = lseek(iFd,0,SEEK_CUR);
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if (Res == (off_t)-1)
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+ {
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+ Flags |= Fail;
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_error->Errno("lseek","Failed to determine the current file position");
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- d->seekpos = Res;
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+ }
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+ if (d != NULL)
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+ d->seekpos = Res;
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return Res;
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}
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/*}}}*/
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@@ -1492,17 +1538,24 @@ unsigned long long FileFd::Tell()
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unsigned long long FileFd::FileSize()
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{
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struct stat Buf;
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- if (d->pipe == false && fstat(iFd,&Buf) != 0)
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+ if ((d == NULL || d->pipe == false) && fstat(iFd,&Buf) != 0)
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+ {
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+ Flags |= Fail;
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return _error->Errno("fstat","Unable to determine the file size");
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+ }
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// for compressor pipes st_size is undefined and at 'best' zero
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- if (d->pipe == true || S_ISFIFO(Buf.st_mode))
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+ if ((d != NULL && d->pipe == true) || S_ISFIFO(Buf.st_mode))
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{
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// we set it here, too, as we get the info here for free
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// in theory the Open-methods should take care of it already
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- d->pipe = true;
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+ if (d != NULL)
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+ d->pipe = true;
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if (stat(FileName.c_str(), &Buf) != 0)
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+ {
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+ Flags |= Fail;
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return _error->Errno("stat","Unable to determine the file size");
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+ }
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}
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return Buf.st_size;
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@@ -1517,11 +1570,11 @@ unsigned long long FileFd::Size()
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// for compressor pipes st_size is undefined and at 'best' zero,
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// so we 'read' the content and 'seek' back - see there
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- if (d->pipe == true
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+ if (d != NULL && (d->pipe == true
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#ifdef HAVE_BZ2
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- || (d->bz2 && size > 0)
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+ || (d->bz2 && size > 0)
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#endif
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- )
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+ ))
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{
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unsigned long long const oldSeek = Tell();
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char ignore[1000];
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@@ -1536,7 +1589,7 @@ unsigned long long FileFd::Size()
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// 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
|
|
|
@@ -1544,10 +1597,16 @@ unsigned long long FileFd::Size()
|
|
|
* bits of the file */
|
|
|
// FIXME: Size for gz-files is limited by 32bit… no largefile support
|
|
|
if (lseek(iFd, -4, SEEK_END) < 0)
|
|
|
- return _error->Errno("lseek","Unable to seek to end of gzipped file");
|
|
|
+ {
|
|
|
+ Flags |= Fail;
|
|
|
+ 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");
|
|
|
+ {
|
|
|
+ Flags |= Fail;
|
|
|
+ return _error->Errno("read","Unable to read original size of gzipped file");
|
|
|
+ }
|
|
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
|
uint32_t tmp_size = size;
|
|
|
@@ -1557,7 +1616,10 @@ unsigned long long FileFd::Size()
|
|
|
#endif
|
|
|
|
|
|
if (lseek(iFd, oldPos, SEEK_SET) < 0)
|
|
|
- return _error->Errno("lseek","Unable to seek in gzipped file");
|
|
|
+ {
|
|
|
+ Flags |= Fail;
|
|
|
+ return _error->Errno("lseek","Unable to seek in gzipped file");
|
|
|
+ }
|
|
|
|
|
|
return size;
|
|
|
}
|
|
|
@@ -1572,20 +1634,23 @@ unsigned long long FileFd::Size()
|
|
|
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)
|
|
|
{
|
|
|
+ Flags |= Fail;
|
|
|
_error->Errno("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)
|
|
|
{
|
|
|
+ Flags |= Fail;
|
|
|
_error->Errno("fstat","Unable to determine the modification time of file %s", FileName.c_str());
|
|
|
return 0;
|
|
|
}
|
|
|
@@ -1645,6 +1710,8 @@ bool FileFd::Close()
|
|
|
d = NULL;
|
|
|
}
|
|
|
|
|
|
+ if (Res == false)
|
|
|
+ Flags |= Fail;
|
|
|
return Res;
|
|
|
}
|
|
|
/*}}}*/
|
|
|
@@ -1655,7 +1722,10 @@ bool FileFd::Sync()
|
|
|
{
|
|
|
#ifdef _POSIX_SYNCHRONIZED_IO
|
|
|
if (fsync(iFd) != 0)
|
|
|
+ {
|
|
|
+ Flags |= Fail;
|
|
|
return _error->Errno("sync",_("Problem syncing the file"));
|
|
|
+ }
|
|
|
#endif
|
|
|
return true;
|
|
|
}
|