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avoid using GetTempFileName in a way it's documented to not work on windows

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mysys/mf_tempfile.c:
  Try to avoid passing null as first parameter to GetTempFileName, since it's documented that it won't work.
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unknown 2007-09-27 08:56:06 +02:00
parent 4b4680898f
commit 5b770e3a98
1 changed files with 14 additions and 0 deletions
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14
mysys/mf_tempfile.c
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@ -59,11 +59,25 @@ File create_temp_file(char *to, const char *dir, const char *prefix,
myf MyFlags __attribute__((unused)))
{
File file= -1;
#ifdef __WIN__
TCHAR path_buf[MAX_PATH-14];
#endif
DBUG_ENTER("create_temp_file");
DBUG_PRINT("enter", ("dir: %s, prefix: %s", dir, prefix));
#if defined (__WIN__)
/*
Use GetTempPath to determine path for temporary files.
This is because the documentation for GetTempFileName
has the following to say about this parameter:
"If this parameter is NULL, the function fails."
*/
if (!dir)
{
if(GetTempPath(sizeof(path_buf), path_buf) > 0)
dir = path_buf;
}
/*
Use GetTempFileName to generate a unique filename, create
the file and release it's handle