From: Mark Wooding <mdw@distorted.org.uk>
Date: Sun, 18 Jan 2015 04:07:44 +0000 (+0000)
Subject: linux.c: Implement the return-code protocol described.
X-Git-Tag: 1.0.3~8
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/yaid/commitdiff_plain/c63b1d0aa5a62651d7dddf0550ca3a9a94d05d98?hp=c63b1d0aa5a62651d7dddf0550ca3a9a94d05d98

linux.c: Implement the return-code protocol described.

It should return zero on success or -1 on failure, because it's an
operation which attempts to return a value, and so might fail -- as
opposed to a predicate asking a simple boolean question about the world.

No actual harm done, because the code was correct to begin with, but
potentially confusing later.
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