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SubjectRe: writev() "bug"
>This doesn't quite qualify as a bug, but it's something I think should
>be changed. Currently writev(3) allows a maximum of 8 iov's in the io
>vector; if more than 8 are specified, it returns EINVAL. IMHO, this
>is far too small, especially for an arbitrary limit: SunOS supports up
>to 16, and OSF/1 (aka Digital UNIX) supports up to 1024. I'd like to
>see MAX_IOVEC increased to at least 16, and preferably more than that.

Not necessary. As of libc 5.2.18, libc writev()s longer vectors MAX_IOVEC
iov's at a time. The only problem occurs when you use a library compiled
before readv/writev were syscalls with a newer kernel; in that case the
library reverts to its old behavior because MAX_IOVEC is not defined
anywhere.

-- Aaron Ucko (ucko@vax1.rockhurst.edu; finger for PGP public key) | httyp!
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