On 1/17/12 7:04 PM, Zachary Miller wrote:
>
> hello,
>
> i would like to report a what i believe to be a minor bug in bash 4.2 that has
> to do with file redirection:
>
> in redir.c:356 (function write_here_document()), this block of code:
> if (write (fd, document, document_len) < document_len)
> {
> if (errno == 0)
> errno = ENOSPC;
> return (errno);
> }
> else
> return 0;
>
> checks for a short write() but doesn't retry writing the remainder of the
> bytes
> (and in fact returns ENOSPC instead, even though no error has yet occurred).
>
> according to the man page for write(2), fewer bytes may be written and this is
> not by itself an error.
Thanks for the report. As a practical matter, this doesn't present a
problem. When writing to a regular file, with no special flags supplied
to open(), the only cases Posix says it can return fewer bytes than
specified are errors.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU [email protected] http://cnswww.cns.cwru.edu/~chet/
