// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: fileutl.cc,v 1.30 1999/07/26 17:46:08 jgg Exp $
+// $Id: fileutl.cc,v 1.35 2001/02/20 07:03:17 jgg Exp $
/* ######################################################################
File Utilities
#endif
#include <apt-pkg/fileutl.h>
#include <apt-pkg/error.h>
+#include <apt-pkg/sptr.h>
+
+#include <apti18n.h>
#include <unistd.h>
+#include <fcntl.h>
#include <sys/stat.h>
-#include <sys/fcntl.h>
#include <sys/types.h>
#include <sys/time.h>
+#include <sys/wait.h>
#include <signal.h>
-#include <wait.h>
#include <errno.h>
/*}}}*/
return false;
// Buffered copy between fds
- unsigned char *Buf = new unsigned char[64000];
+ SPtrArray<unsigned char> Buf = new unsigned char[64000];
unsigned long Size = From.Size();
while (Size != 0)
{
if (From.Read(Buf,ToRead) == false ||
To.Write(Buf,ToRead) == false)
- {
- delete [] Buf;
return false;
- }
Size -= ToRead;
}
- delete [] Buf;
return true;
}
/*}}}*/
int FD = open(File.c_str(),O_RDWR | O_CREAT | O_TRUNC,0640);
if (FD < 0)
{
+ // Read only .. cant have locking problems there.
+ if (errno == EROFS)
+ {
+ _error->Warning(_("Not using locking for read only lock file %s"),File.c_str());
+ return dup(0); // Need something for the caller to close
+ }
+
if (Errors == true)
- _error->Errno("open","Could not open lock file %s",File.c_str());
+ _error->Errno("open",_("Could not open lock file %s"),File.c_str());
+
+ // Feh.. We do this to distinguish the lock vs open case..
+ errno = EPERM;
return -1;
}
-
+ SetCloseExec(FD,true);
+
// Aquire a write lock
struct flock fl;
fl.l_type = F_WRLCK;
{
if (errno == ENOLCK)
{
- _error->Warning("Not using locking for nfs mounted lock file %s",File.c_str());
- return true;
+ _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());
+ _error->Errno("open",_("Could not get lock %s"),File.c_str());
+
+ int Tmp = errno;
close(FD);
+ errno = Tmp;
return -1;
}
return string(File,0,Res);
}
/*}}}*/
+// flExtension - Return the extension for the file /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+string flExtension(string File)
+{
+ string::size_type Res = File.rfind('.');
+ if (Res == string::npos)
+ return File;
+ Res++;
+ return string(File,Res,Res - File.length());
+}
+ /*}}}*/
+// flNoLink - If file is a symlink then deref it /*{{{*/
+// ---------------------------------------------------------------------
+/* If the name is not a link then the returned path is the input. */
+string flNoLink(string File)
+{
+ struct stat St;
+ if (lstat(File.c_str(),&St) != 0 || S_ISLNK(St.st_mode) == 0)
+ return File;
+ if (stat(File.c_str(),&St) != 0)
+ return File;
+
+ /* Loop resolving the link. There is no need to limit the number of
+ loops because the stat call above ensures that the symlink is not
+ circular */
+ char Buffer[1024];
+ string NFile = File;
+ while (1)
+ {
+ // Read the link
+ int Res;
+ if ((Res = readlink(NFile.c_str(),Buffer,sizeof(Buffer))) <= 0 ||
+ (unsigned)Res >= sizeof(Buffer))
+ return File;
+
+ // Append or replace the previous path
+ Buffer[Res] = 0;
+ if (Buffer[0] == '/')
+ NFile = Buffer;
+ else
+ NFile = flNotFile(NFile) + Buffer;
+
+ // See if we are done
+ if (lstat(NFile.c_str(),&St) != 0)
+ return File;
+ if (S_ISLNK(St.st_mode) == 0)
+ return NFile;
+ }
+}
+ /*}}}*/
+// flCombine - Combine a file and a directory /*{{{*/
+// ---------------------------------------------------------------------
+/* If the file is an absolute path then it is just returned, otherwise
+ the directory is pre-pended to it. */
+string flCombine(string Dir,string File)
+{
+ if (File.empty() == true)
+ return string();
+
+ if (File[0] == '/' || Dir.empty() == true)
+ return File;
+ if (File.length() >= 2 && File[0] == '.' && File[1] == '/')
+ return File;
+ if (Dir[Dir.length()-1] == '/')
+ return Dir + File;
+ return Dir + '/' + File;
+}
+ /*}}}*/
// SetCloseExec - Set the close on exec flag /*{{{*/
// ---------------------------------------------------------------------
/* */
/*}}}*/
// WaitFd - Wait for a FD to become readable /*{{{*/
// ---------------------------------------------------------------------
-/* This waits for a FD to become readable using select. It is usefull for
+/* This waits for a FD to become readable using select. It is useful for
applications making use of non-blocking sockets. The timeout is
in seconds. */
bool WaitFd(int Fd,bool write,unsigned long timeout)
if (Reap == true)
return false;
- return _error->Error("Waited, for %s but it wasn't there",Name);
+ return _error->Error(_("Waited, for %s but it wasn't there"),Name);
}
if (Reap == true)
return false;
if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV)
- return _error->Error("Sub-process %s recieved a segmentation fault.",Name);
+ return _error->Error(_("Sub-process %s received a segmentation fault."),Name);
if (WIFEXITED(Status) != 0)
- return _error->Error("Sub-process %s returned an error code (%u)",Name,WEXITSTATUS(Status));
+ return _error->Error(_("Sub-process %s returned an error code (%u)"),Name,WEXITSTATUS(Status));
- return _error->Error("Sub-process %s exited unexpectedly",Name);
+ return _error->Error(_("Sub-process %s exited unexpectedly"),Name);
}
return true;
case WriteEmpty:
{
struct stat Buf;
- if (stat(FileName.c_str(),&Buf) == 0 && S_ISLNK(Buf.st_mode))
+ if (lstat(FileName.c_str(),&Buf) == 0 && S_ISLNK(Buf.st_mode))
unlink(FileName.c_str());
iFd = open(FileName.c_str(),O_RDWR | O_CREAT | O_TRUNC,Perms);
break;
}
if (iFd < 0)
- return _error->Errno("open","Could not open file %s",FileName.c_str());
+ return _error->Errno("open",_("Could not open file %s"),FileName.c_str());
this->FileName = FileName;
SetCloseExec(iFd,true);
if (Res < 0)
{
Flags |= Fail;
- return _error->Errno("read","Read error");
+ return _error->Errno("read",_("Read error"));
}
To = (char *)To + Res;
}
Flags |= Fail;
- return _error->Error("read, still have %u to read but none left",Size);
+ return _error->Error(_("read, still have %lu to read but none left"),Size);
}
/*}}}*/
// FileFd::Write - Write to the file /*{{{*/
if (Res < 0)
{
Flags |= Fail;
- return _error->Errno("write","Write error");
+ return _error->Errno("write",_("Write error"));
}
From = (char *)From + Res;
return true;
Flags |= Fail;
- return _error->Error("write, still have %u to write but couldn't",Size);
+ return _error->Error(_("write, still have %lu to write but couldn't"),Size);
}
/*}}}*/
// FileFd::Seek - Seek in the file /*{{{*/
if (lseek(iFd,To,SEEK_SET) != (signed)To)
{
Flags |= Fail;
- return _error->Error("Unable to seek to %u",To);
+ return _error->Error("Unable to seek to %lu",To);
}
return true;
if (lseek(iFd,Over,SEEK_CUR) < 0)
{
Flags |= Fail;
- return _error->Error("Unable to seek ahead %u",Over);
+ return _error->Error("Unable to seek ahead %lu",Over);
}
return true;
if (ftruncate(iFd,To) != 0)
{
Flags |= Fail;
- return _error->Error("Unable to truncate to %u",To);
+ return _error->Error("Unable to truncate to %lu",To);
}
return true;
bool Res = true;
if ((Flags & AutoClose) == AutoClose)
if (iFd >= 0 && close(iFd) != 0)
- Res &= _error->Errno("close","Problem closing the file");
+ Res &= _error->Errno("close",_("Problem closing the file"));
iFd = -1;
if ((Flags & Fail) == Fail && (Flags & DelOnFail) == DelOnFail &&
FileName.empty() == false)
if (unlink(FileName.c_str()) != 0)
- Res &= _error->Warning("unlnk","Problem unlinking the file");
+ Res &= _error->WarningE("unlnk",_("Problem unlinking the file"));
return Res;
}
/*}}}*/
+// FileFd::Sync - Sync the file /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool FileFd::Sync()
+{
+#ifdef _POSIX_SYNCHRONIZED_IO
+ if (fsync(iFd) != 0)
+ return _error->Errno("sync",_("Problem syncing the file"));
+#endif
+ return true;
+}
+ /*}}}*/
HCoop / ntk / apt.git / blobdiff