* cygheap.h (cygheap_types): Add HEAP_COMMUNE.

* fhandler_proc.cc: Use cygheap rather than user heap for allocation of filebuf
throughout.
* fhandler_registry.cc: Ditto.
* fhandler_virtual.cc: Ditto.
* fhandler_process.cc: Ditto.
(get_mem_values): Use malloc/realloc/free rather than new.
* pinfo.cc (_pinfo::commune_send): Allocate on cygwin heap rather than user
heap.  Avoid calling ReadFile when correct number of characters have been read
or suffer buffer corruption.
(_pinfo::fd): Allocate on cygwin heap rather than user heap.
(_pinfo::fds): Ditto.
(_pinfo::root): Ditto.
(_pinfo::cwd): Ditto.
(_pinfo::cmdline): Ditto.
* devices.h (FH_DEV): New define.
* devices.in: Detect lone /dev.
* devices.cc: Regenerate.
* path.cc (path_conv::check): Treat FH_DEV as a special case.

1 files changed, 7 insertions, 1 deletions

diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc
index 2a5ca4608..787251d72 100644
--- a/winsup/cygwin/path.cc
+++ b/winsup/cygwin/path.cc
@@ -634,11 +634,17 @@ path_conv::check (const char *src, unsigned opt,
 		fileattr = FILE_ATTRIBUTE_DIRECTORY | FILE_ATTRIBUTE_READONLY;
 	      else
 		{
-		  dev.devn = FH_FS;
 		  fileattr = GetFileAttributes (this->path);
+		  dev.devn = FH_FS;
 		}
 	      goto out;
 	    }
+	  else if (dev == FH_DEV)
+	    {
+	      fileattr = FILE_ATTRIBUTE_DIRECTORY;
+	      dev.devn = FH_FS;
+	      goto out;
+	    }
 	  else if (isvirtual_dev (dev.devn))
 	    {
 	      /* FIXME: Calling build_fhandler here is not the right way to handle this. */