getpwuid() fails

[jbeigel]

I try to use i3lock on a Linux system with LDAP user account. Later in the code, this seems to be handled correctly via PAM, but right at the start after the option parsing, getpwuid() is called, fails and i3lock immediately exit with the (somewhat funny) error "i3lock: getpwuid() failed: Success"

[SegFault42]

It's because getpwuid return NULL and errno is set to 0 (Success).

If you read the manual, you can see that (in RETURN VALUE and ERRORS section):

If  an error occurs, errno is set appropriately.

ERRORS
       0 or ENOENT or ESRCH or EBADF or EPERM or ...
              The given name or uid was not found.

I don't know how LDAP user acount work with getpwuid().

[Z1NZ]

Hi @jbeigel @SegFault42

We can have more information about issue like linux (32/64) ? distribution of linux ?
Did you compile source code ?

I find similar issue on stackoverflow
https://stackoverflow.com/questions/18570177/getpwuid-returns-null-for-ldap-user

[stapelberg]

We could totally add a fallback code path which used the $USER environment variable (if set) when getpwuid fails. @jbeigel would you be able to test such a patch in your environment?