Gautham Banasandra created HDFS-15935:
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Summary: Use memcpy for copying non-null terminated string
Key: HDFS-15935
URL: https://issues.apache.org/jira/browse/HDFS-15935
Project: Hadoop HDFS
Issue Type: Bug
Components: libhdfs++
Affects Versions: 3.4.0
Reporter: Gautham Banasandra
Assignee: Gautham Banasandra
We currently get a warning while compiling HDFS native client -
{code}
[WARNING] /usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:10:
warning: '__builtin_strncpy' output truncated before terminating nul copying as
many bytes from a string as its length [-Wstringop-truncation]
{code}
The scenario here is such that the copied string is deliberately not null
terminated, so that we append a custom character appropriately. The warning
reported by strncpy is valid, but not applicable in this scenario. Thus, we
need to use memcpy which doesn't mind if the string is null terminated or not.
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