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CFile::Write not working properly on a network drive unless I add one to the number of bytes.

Posted on 2003-04-01
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Last Modified: 2013-11-20
I am having a problem writing out to a file on a network drive.  When I call the CFile Write function, the computer hangs for about a minute, then eventally displays an error message that access to the file is denied.  I have write access to the network drive.  This problem only happens when using the network drive.  It works fine when writing to a local drive.  The command I use is:

fp->Write(c,strlen(c));

But the funny thing is, if I add one to the number of bytes being sent, such as:

fp->Write(c,strlen(c)+1);

then it works fine.  Does anybody know why this is?  Has anyone else ever experienced anything like this?

c is a character string.  I have allowed enough space for the string.  I can't find anywhere where I don't allow enough memory.

Thank you,

Ray
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Question by:RKulwiec
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6 Comments
 
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by:williamcampbell
ID: 8247949

  IS c Zero terminated? If not then strlen may return a huge value.
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Author Comment

by:RKulwiec
ID: 8247977
Yes.  c is zero terminated.
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Accepted Solution

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williamcampbell earned 1000 total points
ID: 8248047
char we[6] = {"123456"};
int len = strlen (we);

CFile cf;
cf.Open ( "\\\\COMP\\SOMEDIR\\text.txt", CFile::modecreate | CFile::modeWrite );
cf.Write( we, len );
cf.Close ();

Do this test above and see what happens.
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