[MESOS-3551] Replace use of strerror with thread-safe alternatives strerror_r / strerror_l.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.27.0
• Component/s: libprocess, stout
• Labels: mesosphere newbie tech-debt
• Sprint: Mesosphere Sprint 22
• Story Points: 3
• Assignee: Benjamin Bannier
• Reporter: Benjamin Mahler
• Shepherd: Till Toenshoff
• Created: 29/Sep/15 19:39
• Updated: 26/Nov/18 09:29
• Resolved: 26/Nov/18 09:29

Description

strerror() is not required to be thread safe by POSIX and is listed as unsafe on Linux:

http://pubs.opengroup.org/onlinepubs/9699919799/
http://man7.org/linux/man-pages/man3/strerror.3.html

I don't believe we've seen any issues reported due to this. We should replace occurrences of strerror accordingly, possibly offering a wrapper in stout to simplify callsites.