[systemd-devel] [PATCH] fstab-generator: default to "ro"

Lennart Poettering lennart at poettering.net
Fri Mar 1 09:00:13 PST 2013


On Fri, 01.03.13 17:56, Harald Hoyer (harald at redhat.com) wrote:

> 
> Am 01.03.2013 17:37, schrieb Lennart Poettering:
> > On Fri, 01.03.13 15:13, harald at redhat.com (harald at redhat.com) wrote:
> > 
> >> From: Harald Hoyer <harald at redhat.com>
> >>
> >> If no "ro" or "rw" is specified on the kernel command line, mount root
> >> read-only on /sysroot by default
> > 
> > This sounds good, in order to stay in sync with the initrd-less kernel
> > logic. Please commit!
> > 
> 
> committed.
> 
> Btw, strjoin() should really handle empty strings as the first argument.
> 
> strjoin(NULL, ",", "TEST") should result in "TEST" .. shouldn't it?
> 
> strjoin("", ",", "TEST") ?

We use NULL as the sentinel here for the varargs list. It just stupidly
concatenates the strings you pass it, one after the other, until we hit
NULL. If you pass NULL as first arg, then we'd just stop there...

There's strempty() which turns NULL into ""?

Lennart

-- 
Lennart Poettering - Red Hat, Inc.


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