Date: Thu, 10 Jul 2003 16:21:50 -0400 (EDT) From: Matthew Emmerton <matt@compar.com> To: Terry Lambert <tlambert2@mindspring.com> Cc: freebsd-hackers@freebsd.org Subject: Re: RFC: Change to sys_errlist Message-ID: <20030710162030.R32209-100000@skippyii.compar.com> In-Reply-To: <3F084B85.5CF7F6B0@mindspring.com>
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On Sun, 6 Jul 2003, Terry Lambert wrote: > Matthew Emmerton wrote: > > This is a RFC on a change to sys_errlist for errno = 0. > > > > On Linux, if perror() or strerror() is called with errno = 0, the resulting > > string is "Success". > > On FreeBSD, the resulting string is "Unknown error: 0". > > > > I think that FreeBSD's output is unintentionally confusing, as errno = 0 > > implies success. > > > > The following patch will change the output to the Linux behaviour. > > > > I appreciate any comments. > > Actually, I ran into a situation on MacOS X the other day that had > a system call with a -1 return code with an errno == 0. > > I would personally like to distinguish this case, if only for the > purpose of catching kernel errors. Saying "Success" when in fact > the system call is returning -1 is a bogus thing to do. Agreed. I thought this over and read some specs and believe our way is the right way. -- Matthew Emmerton Computer Partners IT Specialist
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