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H A D | uname.c | b2acfb55 Wed May 01 14:46:46 GMT 2019 Daniel P. Berrangé <berrange@redhat.com> linux-user: avoid string truncation warnings in uname field copying
In file included from /usr/include/string.h:494, from include/qemu/osdep.h:101, from linux-user/uname.c:20: In function ‘strncpy’, inlined from ‘sys_uname’ at linux-user/uname.c:94:3: /usr/include/bits/string_fortified.h:106:10: warning: ‘__builtin_strncpy’ output may be truncated copying 64 bytes from a string of length 64 [-Wstringop-truncation] 106 | return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We don't care where the NUL terminator in the original uname field was. It suffices to copy the entire original field and simply force a NUL terminator at the end of the new field.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190501144646.4851-1-berrange@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
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