Piotr Caban : msvcrt: Allocate buffer in fwrite function.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ec26342c88fb48954cad9044fecce336e1be31d9
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=ec26342c88fb48954cad9044fecce336e1be31d9

Author: Piotr Caban <piotr at codeweavers.com>
Date:   Fri Nov  2 17:18:34 2012 +0100

msvcrt: Allocate buffer in fwrite function.

---

 dlls/msvcrt/file.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/dlls/msvcrt/file.c b/dlls/msvcrt/file.c
index 185b1e2..1b87dd2 100644
--- 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)