init: Add Dir::Bin::planners default entry

[apt.git] / apt-pkg / contrib / fileutl.cc

diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index 342f9830d78a4b0adec1f4e678666a03884348c0..fd13b45dc61374f6534524becda29e7bce488b0a 100644 (file)
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -1908,11 +1908,12 @@ public:
               " but was forced to ignore it in favor of an external binary – which isn't installed.", compressor.Name.c_str());
 
       bool const Comp = (Mode & FileFd::WriteOnly) == FileFd::WriteOnly;
-      if (Comp == false)
+      if (Comp == false && filefd->iFd != -1)
       {
         // Handle 'decompression' of empty files
         struct stat Buf;
-        fstat(filefd->iFd, &Buf);
+        if (fstat(filefd->iFd, &Buf) != 0)
+           return filefd->FileFdErrno("fstat", "Could not stat fd %d for file %s", filefd->iFd, filefd->FileName.c_str());
         if (Buf.st_size == 0 && S_ISFIFO(Buf.st_mode) == false)
            return true;
 
@@ -2443,6 +2444,37 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual)
    }
 
    return FileFdError(_("read, still have %llu to read but none left"), Size);
+}
+bool FileFd::Read(int const Fd, void *To, unsigned long long Size, unsigned long long * const Actual)
+{
+   ssize_t Res = 1;
+   errno = 0;
+   if (Actual != nullptr)
+      *Actual = 0;
+   *static_cast<char *>(To) = '\0';
+   while (Res > 0 && Size > 0)
+   {
+      Res = read(Fd, To, Size);
+      if (Res < 0)
+      {
+        if (errno == EINTR)
+        {
+           Res = 1;
+           errno = 0;
+           continue;
+        }
+        return _error->Errno("read", _("Read error"));
+      }
+      To = static_cast<char *>(To) + Res;
+      Size -= Res;
+      if (Actual != 0)
+        *Actual += Res;
+   }
+   if (Size == 0)
+      return true;
+   if (Actual != nullptr)
+      return true;
+   return _error->Error(_("read, still have %llu to read but none left"), Size);
 }
                                                                        /*}}}*/
 // FileFd::ReadLine - Read a complete line from the file               /*{{{*/