Re: Request for portability test of strerror(). - Mailing list pgsql-ports

From Pete Forman
Subject Re: Request for portability test of strerror().
Date
Msg-id 14832.14490.954318.955855@kryten.bedford.waii.com
Whole thread Raw
In response to Request for portability test of strerror().  (Pete Forman <gsez020@kryten.bedford.waii.com>)
List pgsql-ports
Pete Forman writes:
 > What I'd like to know is whether any version of strerror() returns
 > a non-NULL pointer that does not contain a print of the number.

Bernd Tegg writes:
> QNX 4.25: errno = 0 after strerror(-1) returned "Unknown error"
> (egcs-2.91.66 using watcom 10.6 QNX specific libs)

I'll modify the question then.  Does any version of strerror() return
a non-NULL pointer to a garbage string?


The proposed modifications to the PostgreSQL code would be to remove
references to sys_nerr and print both the error number and its text,
if available.  Testing against sys_nerr is probably redundant anyway
as most calls to the routines will be with a valid errno.  If anyone
feels strongly about keeping sys_nerr it should be tested for by
configure and not with the OS-specific ifdefs in the code.
--
Pete Forman                    -./\.- <mailto:pete.forman@westgeo.com>
Western Geophysical              -./\.-          <tel:+44-1234-224798>
Manton Lane, Bedford, MK41 7PA, UK -./\.-        <fax:+44-1234-224804>
    -./\.-  <http://www.bedford.waii.com/wsdev/petef/PeteF_links.html>

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