Several months ago I was having trouble porting a program of mine
to solaris, the problem was that I'd get EINVAL back from writev/readv
if my iovec was larger than 16 entries long.
I thought this was a pretty stupidly set low limit, however the
solaris #define for it looked pretty official:
sys/socket.h:#define MSG_MAXIOVLEN 16
sys/stream.h:#define DEF_IOV_MAX 16
anyhow, I just noticed that our manpages now proclaim a 16 entry
limit, however our kernel code doesn't seemt to mind up to 1024
iovs. (sys/uio.h:#define UIO_MAXIOV 1024)
So do we:
a) change the kernel to match the docco and possibly breaks
lotsa stuff?
b) change the docco to note that although FreeBSD allows
more than 16 iovecs, it's not recommeneded for portability
reasons
c) change readv/writev but provide compat syscalls.
--
-Alfred Perlstein - [[EMAIL PROTECTED]|[EMAIL PROTECTED]]
"I have the heart of a child; I keep it in a jar on my desk."
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