Re: Is getpass(3) really obsolete?

> On October 29, 2021 7:29 AM, Alejandro Colomar wrote:
> > On 10/29/21 13:15, Alejandro Colomar wrote:
> > > Hi,
> > >
> > > As the manual pages says, SUSv2 marked it as LEGACY, and POSIX doesn't
> > > have it at all.  The manual page goes further and says "This function
> > > is obsolete. Do not use it." in its first lines.
> > >
> > > But, glibc doesn't seem to have deprecated this function at all.  And
> > > it seems to be the most portable way to get a password, even if it's
> > > not in POSIX.
> > >
> > > BSDs have readpassphrase(3), but glibc doesn't, so unless you
> > > recommend
> > 
> > OpenBSD also marks getpass(3) as obsolete and recommends
> > readpassphrase(3):
> > <https://man.openbsd.org/getpass>
> > 
> > > using readpassphrase(3) from libbsd, or plan to add it to glibc, I
> > > think
> > > getpass(3) should be the recommended function in Linux, and therefore
> > > we should remove the hard words against it.
> > >
> > > As a real example, git(1) uses getpass(3).
> > > <https://github.com/git/git/blob/master/compat/terminal.c>
> > >
> > > What are your thoughts?
> 
> getpass() is obsolete in POSIX.2. However, some platforms still are on POSIX.1, so replacing it instead of providing a configure detection/switch for it might cause issues.