msvcrt: Fix _flsbuf behavior on streams with MSVCRT__IONBF flag.

f91f24f6 · Piotr Caban · Alexandre Julliard · 8715d89c · f91f24f6
Commit f91f24f6 authored Jun 26, 2014 by Piotr Caban Committed by Alexandre Julliard Jun 26, 2014
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file.c dlls/msvcrt/file.c +1 -1

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--- a/dlls/msvcrt/file.c
+++ b/dlls/msvcrt/file.c
@@ -3656,7 +3656,7 @@ int CDECL MSVCRT__flsbuf(int c, MSVCRT_FILE* file)
        else
            return MSVCRT_EOF;
    }
-    if(file->_bufsiz) {
+    if(file->_bufsiz && !(file->_flag&MSVCRT__IONBF)) {
        int res = 0;

        if(file->_cnt <= 0) {