[6108] in Athena Bugs

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fwrite on file opened for read

daemon@ATHENA.MIT.EDU (Ken Raeburn)
Wed Sep 26 13:23:01 1990

Date: Wed, 26 Sep 90 13:22:49 -0400
From: Ken Raeburn <Raeburn@MIT.Edu>
To: bugs@ATHENA.MIT.EDU

If fwrite is called on a FILE* that is opened for read only, and
_flsbuf gets called, fwrite will return 0, indicating an error, but
neither ferror nor feof will show an error after that, nor will errno
have been set.  Such behavior is neither obvious nor documented.

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