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author | Stefan Liebler <stli@linux.ibm.com> | 2023-02-28 13:37:35 +0100 |
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committer | Stefan Liebler <stli@linux.ibm.com> | 2023-03-02 14:22:54 +0100 |
commit | 1e0c8356f591a62df9725b6c9387da78002ba412 (patch) | |
tree | b0934c68c884057e777a189edffabeedd9834bcb /sysdeps/x86_64/crtn.S | |
parent | 3bfdc4e2bceb601b90c81a9baa73c1904db58b2f (diff) | |
download | glibc-1e0c8356f591a62df9725b6c9387da78002ba412.tar.gz glibc-1e0c8356f591a62df9725b6c9387da78002ba412.tar.xz glibc-1e0c8356f591a62df9725b6c9387da78002ba412.zip |
nis: Fix stringop-truncation warning with -O3 in nis_local_host.
When building with -O3 on s390x/x86_64, I get this stringop-truncation warning which leads to a build fail: In function ‘nis_local_host’, inlined from ‘nis_local_host’ at nis_local_names.c:147:1: nis_local_names.c:171:11: error: ‘strncpy’ output may be truncated copying between 0 and 1023 bytes from a string of length 1024 [-Werror=stringop-truncation] 171 | strncpy (cp, nis_local_directory (), NIS_MAXNAMELEN - len -1); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We can just ignore this warning as the hostname + '.' + directory-name + '\0' always fits in __nishostname with length of (NIS_MAXNAMELEN + 1) as there is the runtime check above. Furthermore as we already know the length of the directory-name, we can also just use memcpy to copy the directory-name inclusive the NUL-termination. Note: This werror was introduced with commit 32c7acd46401530fdbd4e98508c9baaa705f8b53 "Replace rawmemchr (s, '\0') with strchr" Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
Diffstat (limited to 'sysdeps/x86_64/crtn.S')
0 files changed, 0 insertions, 0 deletions