Re: [PATCH] Prefer getenv("HOME") to find the UNIX home directory - Mailing list pgsql-hackers

From Tom Lane
Subject Re: [PATCH] Prefer getenv("HOME") to find the UNIX home directory
Date
Msg-id 1888214.1641768008@sss.pgh.pa.us
Whole thread Raw
In response to Re: [PATCH] Prefer getenv("HOME") to find the UNIX home directory  (Christoph Moench-Tegeder <cmt@burggraben.net>)
Responses Re: [PATCH] Prefer getenv("HOME") to find the UNIX home directory
List pgsql-hackers
Christoph Moench-Tegeder <cmt@burggraben.net> writes:
> ## Tom Lane (tgl@sss.pgh.pa.us):
>> Given the POSIX requirements, it's basically impossible to believe
>> that there are interesting cases where $HOME isn't set.

> When I look at a random Debian with the usual PGDG packages, the
> postmaster process (and every backend) has a rather minimal environment
> without HOME. When I remember the code correctly, walreceiver uses
> the functions from fe-connect.c and may need to find the service file,
> a password file or certificates. If I'm correct with that, requiring
> HOME to be set would be a significant change for existing "normal"
> installations.
> What about containers and similar "reduced" environments?

Isn't that a flat out violation of POSIX 8.3 Other Environment Variables?

    HOME
        The system shall initialize this variable at the time of login to
        be a pathname of the user's home directory. See <pwd.h>.

To claim it's not, you have to claim these programs aren't logged in,
in which case where did they get any privileges from?

            regards, tom lane



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