Date: Sat, 23 Jul 2016 21:47:41 -0400 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: Re: strftime sets errno to 22 On Sat, Jul 23, 2016 at 10:17:30PM -0300, Alba Pompeo wrote: > Hello musl people. > > I was reading some commits messages from a project and ended up seeing > something that might be interesting to you. > > https://github.com/izabera/inutility/commit/1db3ba948ad1d4cbfa8c0164fa475439c99c06bc > > I don't think it's been reported yet. Except for a few special functions with more restrictive specification, you can only expect errno to contain something meaningful immediately after a function returns with a return value indicating an error. The code above was assuming that errno being set indicated an error even when strftime succeeded. With that said, at the time this was reported on IRC I looked for the cause of errno being set to EINVAL and didn't see it. It might be nice to know why it's happening, just in case some unintended code paths with nontrivial cost are getting pulled in. Rich
Powered by blists - more mailing lists
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.