From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Sat, 21 May 2016 09:51:08 -0700
To: 9fans@9fans.net
Message-ID: <36c146b2e870849515a1677237037219@lilly.quanstro.net>
In-Reply-To: <F8B3028D-9E02-425A-A92F-FB88A5247587@ar.aichi-u.ac.jp>
References: <e2cc68c67e302f97bc67473b30c2a427@9netics.com>
	<F8B3028D-9E02-425A-A92F-FB88A5247587@ar.aichi-u.ac.jp>
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Subject: Re: [9fans] bug in authdial()
Topicbox-Message-UUID: 921aafb2-ead9-11e9-9d60-3106f5b1d025

> static int
> reap(Dest *dp)
> {
> 	char exitsts[2*ERRMAX];
> +	int n;
> -	if (outstandingprocs(dp) && await(exitsts, sizeof exitsts) >= 0) {
> +	if (outstandingprocs(dp) && (n = await(exitsts, sizeof exitsts-1)) >= 0) {
> +		exitsts[n] = 0;
> 		notedeath(dp, exitsts);
> 		return 0;
> 	}
> 	return -1;
> }
>
> probably 2*ERRMAX is enough for await().
>
> I wonder why await() returns non-terminated string?
>

a better solution is to just use waitmsg (see wait(2)).  the parsing rules and sizing are
already implemented there.

- erik