[PATCH] Portability patches

Ralph Böhme rb at sernet.de
Thu Oct 9 11:20:40 MDT 2014

On Thu, Oct 09, 2014 at 09:56:52AM -0700, Richard Sharpe wrote:
> On Thu, Oct 9, 2014 at 9:28 AM, Ralph Böhme <rb at sernet.de> wrote:
> > Hi all,
> >
> > attached please find two simple fixes for non-portable code that
> > exploded on my FreeBSD 10 testbox (the non-portable code, not the
> > fixes ;)
> Hmmm, on the CentOS 6.5 (and thus RHEL 6.x) box I am currently using,
> it says of %m that:
>        m      (Glibc  extension.)   Print output of strerror(errno).  No argu-
>               ment is required.

where does it say that? In man sscanf? The only reference to this text
I can find is from man printf: <http://linux.die.net/man/3/printf>

> Isn't that going to cause more portability problems?

To reiterate:

a    scanf glibc extension, eg FreeBSD and Solaris don't have it
m    In SUSv4 [1], but not in SUSv3 [2], supported by glibc since 2.7, FreeBSD

Looks like at least Solaris 11.1 doesn't have m yet, maybe it's in 11.2.


[1] <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sscanf.html>
[2] <http://pubs.opengroup.org/onlinepubs/009695399/functions/sscanf.html>

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