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24-Jul-90 10:42:28-GMT,1507;000000000005
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Date: 23 Jul 90 15:28:48 EDT
From: <[email protected]>
To: <[email protected]>
Subject: write()
Message-Id: <"CSI 5746-5946"@CompuServe.COM>

Thanks, your patch to _blkfin() appears to have worked.  We still
had a problem if the buffer length was a multiple of 4, and the
output file already existed before being opened.  We think it'll
be solved by subtracting one in the line before the one you changed;
will let you know when we have tested it more.

Interesting: it looks as if the file size in bytes is only tracked
in the case of 8 bit files; is that correct?  At any rate,
when we run the programs we sent you, with (7- or) 9-bit files, they
always read back a multiple of (5 or) 4 bytes.  Is that behaviour the
same under your simulator?

Here is a short program that will generate the other (iodump) error
message we mentioned.  If you type the output file after execution, 
it appears that both writes succeeded; the panic occurred during 
fclose.

#endif

#include <stdio.h>

FILE *out;

main()
{
    out = fopen("a.tmp", "w");
    fprintf(out, "Hollow world\n");
    fclose(out);
    out = fopen("a.tmp", "a");
    fprintf(out, "Yellow world\n");
    fclose(out);
}