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-rw-r--r--apt-pkg/contrib/fileutl.cc191
1 files changed, 91 insertions, 100 deletions
diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index 46661887a..0f88923cf 100644
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -184,7 +184,8 @@ bool RunScripts(const char *Cnf)
/* 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
@@ -861,7 +862,7 @@ bool FileFd::Open(string FileName,unsigned int const Mode,CompressMode Compress,
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());
std::vector<APT::Configuration::Compressor> const compressors = APT::Configuration::getCompressors();
std::vector<APT::Configuration::Compressor>::const_iterator compressor = compressors.begin();
@@ -914,17 +915,17 @@ bool FileFd::Open(string FileName,unsigned int const Mode,CompressMode Compress,
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)
@@ -933,9 +934,9 @@ bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Co
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)
{
@@ -981,7 +982,7 @@ bool FileFd::Open(string FileName,unsigned int const Mode,APT::Configuration::Co
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());
}
SetCloseExec(iFd,true);
@@ -1010,14 +1011,19 @@ bool FileFd::OpenDescriptor(int Fd, unsigned int const Mode, CompressMode Compre
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)
@@ -1039,11 +1045,21 @@ bool FileFd::OpenDescriptor(int Fd, unsigned int const Mode, APT::Configuration:
else
iFd = Fd;
this->FileName = "";
- if (OpenInternDescriptor(Mode, compressor) == false)
+ if (Fd == -1 || OpenInternDescriptor(Mode, compressor) == false)
{
- if (AutoClose)
+ if (iFd != -1 && (
+#ifdef HAVE_ZLIB
+ compressor.Name == "gzip" ||
+#endif
+#ifdef HAVE_BZ2
+ compressor.Name == "bzip2" ||
+#endif
+ AutoClose == true))
+ {
close (iFd);
- return _error->Errno("gzdopen",_("Could not open file descriptor %d"), Fd);
+ iFd = -1;
+ }
+ return FileFdError(_("Could not open file descriptor %d"), Fd);
}
return true;
}
@@ -1105,10 +1121,7 @@ bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::C
ExecWait(d->compressor_pid, "FileFdCompressor", true);
if ((Mode & ReadWrite) == ReadWrite)
- {
- Flags |= Fail;
- 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;
if (Comp == false)
@@ -1131,10 +1144,7 @@ bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::C
// Create a data pipe
int Pipe[2] = {-1,-1};
if (pipe(Pipe) != 0)
- {
- Flags |= Fail;
- 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);
@@ -1244,14 +1254,13 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
{
if (errno == EINTR)
continue;
- Flags |= Fail;
#ifdef HAVE_ZLIB
if (d != NULL && d->gz != NULL)
{
int err;
char const * const errmsg = gzerror(d->gz, &err);
if (err != Z_ERRNO)
- return _error->Error("gzread: %s (%d: %s)", _("Read error"), err, errmsg);
+ return FileFdError("gzread: %s (%d: %s)", _("Read error"), err, errmsg);
}
#endif
#ifdef HAVE_BZ2
@@ -1260,10 +1269,10 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
int err;
char const * const errmsg = BZ2_bzerror(d->bz2, &err);
if (err != BZ_IO_ERROR)
- return _error->Error("BZ2_bzread: %s (%d: %s)", _("Read error"), err, errmsg);
+ return FileFdError("BZ2_bzread: %s (%d: %s)", _("Read error"), err, errmsg);
}
#endif
- return _error->Errno("read",_("Read error"));
+ return FileFdErrno("read",_("Read error"));
}
To = (char *)To + Res;
@@ -1284,9 +1293,8 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
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 /*{{{*/
@@ -1342,14 +1350,13 @@ bool FileFd::Write(const void *From,unsigned long long Size)
continue;
if (Res < 0)
{
- Flags |= Fail;
#ifdef HAVE_ZLIB
if (d != NULL && d->gz != NULL)
{
int err;
char const * const errmsg = gzerror(d->gz, &err);
if (err != Z_ERRNO)
- return _error->Error("gzwrite: %s (%d: %s)", _("Write error"), err, errmsg);
+ return FileFdError("gzwrite: %s (%d: %s)", _("Write error"), err, errmsg);
}
#endif
#ifdef HAVE_BZ2
@@ -1358,10 +1365,10 @@ bool FileFd::Write(const void *From,unsigned long long Size)
int err;
char const * const errmsg = BZ2_bzerror(d->bz2, &err);
if (err != BZ_IO_ERROR)
- return _error->Error("BZ2_bzwrite: %s (%d: %s)", _("Write error"), err, errmsg);
+ return FileFdError("BZ2_bzwrite: %s (%d: %s)", _("Write error"), err, errmsg);
}
#endif
- return _error->Errno("write",_("Write error"));
+ return FileFdErrno("write",_("Write error"));
}
From = (char *)From + Res;
@@ -1373,9 +1380,8 @@ bool FileFd::Write(const void *From,unsigned long long Size)
if (Size == 0)
return true;
-
- Flags |= Fail;
- return _error->Error(_("write, still have %llu to write but couldn't"), Size);
+
+ return FileFdError(_("write, still have %llu to write but couldn't"), Size);
}
bool FileFd::Write(int Fd, const void *From, unsigned long long Size)
{
@@ -1419,10 +1425,7 @@ bool FileFd::Seek(unsigned long long To)
return Skip(To - seekpos);
if ((d->openmode & ReadOnly) != ReadOnly)
- {
- Flags |= Fail;
- return _error->Error("Reopen is only implemented for read-only files!");
- }
+ return FileFdError("Reopen is only implemented for read-only files!");
#ifdef HAVE_BZ2
if (d->bz2 != NULL)
{
@@ -1443,17 +1446,11 @@ bool FileFd::Seek(unsigned long long To)
if (lseek(d->compressed_fd, 0, SEEK_SET) != 0)
iFd = d->compressed_fd;
if (iFd < 0)
- {
- Flags |= Fail;
- return _error->Error("Reopen is not implemented for pipes opened with FileFd::OpenDescriptor()!");
- }
+ return FileFdError("Reopen is not implemented for pipes opened with FileFd::OpenDescriptor()!");
}
if (OpenInternDescriptor(d->openmode, d->compressor) == false)
- {
- Flags |= Fail;
- 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);
@@ -1469,10 +1466,7 @@ bool FileFd::Seek(unsigned long long To)
#endif
res = lseek(iFd,To,SEEK_SET);
if (res != (signed)To)
- {
- Flags |= Fail;
- return _error->Error("Unable to seek to %llu", To);
- }
+ return FileFdError("Unable to seek to %llu", To);
if (d != NULL)
d->seekpos = To;
@@ -1496,10 +1490,7 @@ bool FileFd::Skip(unsigned long long Over)
{
unsigned long long toread = std::min((unsigned long long) sizeof(buffer), Over);
if (Read(buffer, toread) == false)
- {
- Flags |= Fail;
- return _error->Error("Unable to seek ahead %llu",Over);
- }
+ return FileFdError("Unable to seek ahead %llu",Over);
Over -= toread;
}
return true;
@@ -1513,10 +1504,7 @@ bool FileFd::Skip(unsigned long long Over)
#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;
@@ -1530,17 +1518,11 @@ bool FileFd::Truncate(unsigned long long To)
{
#if defined HAVE_ZLIB || defined HAVE_BZ2
if (d != NULL && (d->gz != NULL || d->bz2 != NULL))
- {
- Flags |= Fail;
- return _error->Error("Truncating compressed files is not implemented (%s)", FileName.c_str());
- }
+ 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;
}
/*}}}*/
@@ -1568,10 +1550,7 @@ unsigned long long FileFd::Tell()
#endif
Res = lseek(iFd,0,SEEK_CUR);
if (Res == (off_t)-1)
- {
- Flags |= Fail;
- _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;
@@ -1584,10 +1563,7 @@ unsigned long long FileFd::FileSize()
{
struct stat Buf;
if ((d == NULL || d->pipe == false) && fstat(iFd,&Buf) != 0)
- {
- Flags |= Fail;
- return _error->Errno("fstat","Unable to determine the file size");
- }
+ return FileFdErrno("fstat","Unable to determine the file size");
// for compressor pipes st_size is undefined and at 'best' zero
if ((d != NULL && d->pipe == true) || S_ISFIFO(Buf.st_mode))
@@ -1597,10 +1573,7 @@ unsigned long long FileFd::FileSize()
if (d != NULL)
d->pipe = true;
if (stat(FileName.c_str(), &Buf) != 0)
- {
- Flags |= Fail;
- return _error->Errno("stat","Unable to determine the file size");
- }
+ return FileFdErrno("stat","Unable to determine the file size");
}
return Buf.st_size;
@@ -1642,16 +1615,10 @@ 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)
- {
- Flags |= Fail;
- return _error->Errno("lseek","Unable to seek to end of gzipped file");
- }
+ return FileFdErrno("lseek","Unable to seek to end of gzipped file");
size = 0L;
if (read(iFd, &size, 4) != 4)
- {
- Flags |= Fail;
- return _error->Errno("read","Unable to read original size of gzipped file");
- }
+ return FileFdErrno("read","Unable to read original size of gzipped file");
#ifdef WORDS_BIGENDIAN
uint32_t tmp_size = size;
@@ -1661,10 +1628,7 @@ unsigned long long FileFd::Size()
#endif
if (lseek(iFd, oldPos, SEEK_SET) < 0)
- {
- Flags |= Fail;
- return _error->Errno("lseek","Unable to seek in gzipped file");
- }
+ return FileFdErrno("lseek","Unable to seek in gzipped file");
return size;
}
@@ -1681,8 +1645,7 @@ time_t FileFd::ModificationTime()
struct stat Buf;
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());
+ FileFdErrno("fstat","Unable to determine the modification time of file %s", FileName.c_str());
return 0;
}
@@ -1695,8 +1658,7 @@ time_t FileFd::ModificationTime()
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());
+ FileFdErrno("fstat","Unable to determine the modification time of file %s", FileName.c_str());
return 0;
}
}
@@ -1752,11 +1714,40 @@ bool FileFd::Close()
bool FileFd::Sync()
{
if (fsync(iFd) != 0)
+ 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)
{
- Flags |= Fail;
- return _error->Errno("sync",_("Problem syncing the file"));
+ va_start(args,Description);
+ if (_error->InsertErrno(GlobalError::ERROR, Function, Description, args, errsv, msgSize) == false)
+ break;
+ va_end(args);
}
- return true;
+ 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;
}
/*}}}*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 22:41:54 +0000