msvcrt: Fix fflush() of files opened for read.

Some apps, for no particular reason, call fflush() on files opened for read. This keeps them from tripping over their shoelaces.

msvcrt: Fix fflush() of files opened for read.
19a08820 · Alexandre Julliard · 56de92d7 · 19a08820
Commit 19a08820 authored Mar 24, 2006 by Alexandre Julliard
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file.c dlls/msvcrt/file.c +2 -2

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--- a/dlls/msvcrt/file.c
+++ b/dlls/msvcrt/file.c
@@ -588,11 +588,11 @@ int MSVCRT_fflush(MSVCRT_FILE* file)
 {
  if(!file) {
 	_flushall();
-	return 0;
-  } else {
+  } else if(file->_flag & MSVCRT__IOWRT) {
  	int res=msvcrt_flush_buffer(file);
  	return res;
  }
+  return 0;
 }

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