[HDFS-15977] Call explicit_bzero only if it is available

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0, 3.3.2
• Fix Version/s: 3.4.0, 3.3.2
• Component/s: libhdfs++
• Labels: pull-request-available
• Target Version/s: 3.3.1, 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Akira Ajisaka
• Reporter: Akira Ajisaka
• Created: 15/Apr/21 06:43
• Updated: 27/Jan/24 02:48
• Resolved: 16/Apr/21 04:29

Description

CentOS/RHEL 7 has glibc 2.17, and it does not support explicit_bzero. Now I don't want to drop support for CentOS/RHEL 7, and we should call explicit_bzero only if it is available. 

Issue Links

• is broken by: HDFS-15910 Replace bzero with explicit_bzero for better safety
• links to: GitHub Pull Request #2914