Anacron Email noification cannot be send

[jenslauterbach11]

Release 1.7.2 (fedora) an AARCH64 (Raspberry PI 4)

I have configured in anacrontab with MAILTO=root
Nevertheless the email with console output is not send.
It is failing with:
Syntax error in mailbox address "p+?t??" (non-printable character)
...
Tried to mail output of job `cron.weekly', but mailer process (/usr/sbin/sendmail) exited with status 64

The reason seems to be that in runjob.c:launch_job a pointer to a local reference is stored in jr->mailto.
According to documentation the output of getenv might get invalidated when getenv is called again (see posix standard)
I have the feeling that the address might also get invalidated after fork (before fork the mailto address seems still to be valid)
I think strdup should be used to store the result of getenv.
A local workaround by adding strdup in line 365
jr->mailto = strdup(mailto);
seems to solve the problem for me. Unfortunately this will lead to a memory leak as _jr->mailto is never released.

[t8m]

Fix was merged. Using strdup is fine as the leak is on exit only anyway. The job array is not released either.