msvcrt: Allocate buffer in fwrite function.

ec26342c · Piotr Caban · Alexandre Julliard · 4455250a · ec26342c
Commit ec26342c authored Nov 02, 2012 by Piotr Caban Committed by Alexandre Julliard Nov 02, 2012
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file.c dlls/msvcrt/file.c +6 -1

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--- a/dlls/msvcrt/file.c
+++ b/dlls/msvcrt/file.c
@@ -2919,8 +2919,13 @@ MSVCRT_size_t CDECL MSVCRT_fwrite(const void *ptr, MSVCRT_size_t size, MSVCRT_si
        }
    }
    if(wrcnt) {
+        int res;
+
+        if(file->_bufsiz == 0 && !(file->_flag & MSVCRT__IONBF))
+            msvcrt_alloc_buffer(file);
+
        /* Flush buffer */
-        int res=msvcrt_flush_buffer(file);
+        res=msvcrt_flush_buffer(file);
        if(!res) {
            int pwritten = MSVCRT__write(file->_file, ptr, wrcnt);
            if (pwritten <= 0)