[PATCH] ntdll: round section parameters on 0x200

[Andrey Turkin]

This patch does 2 things:
1) round PointerToRawData down on 0x200 boundary;
2) round section initialized data end up on 0x200 boundary.
Such loader behaviour is not documented, but Win2k3, IDA and hiew all 
follow the same rules (some forum topics stated the same, too).

Also, this patch implements similar roundings for file header. It also 
disables mmaping of header in order to not read data beyond 0x200 
boundary (an alternative to it would be to clear header memory beyond 
boundary).

The patch fixes bug #3702 (UPack packed files, file header mapped 3 
times(!))
---
  dlls/ntdll/virtual.c |   28 ++++++++++++++++------------
  1 files changed, 16 insertions(+), 12 deletions(-)
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