Fix overlapping strcpy usages
Using overlapping src & dest witgh strcpy is undefined, so anything
like
strcpy(str + N, str + M);
is automatically invalid, regardless of the valuse of N and M.
Change offending usages here to use memmove() instead.
Note: 2 issues: First, there is no (in sntp/compat) anything to deal
with the possibility that memmove() is not available - this should not
be a problem building nbsd, but it might be if any attempt were to be
made to upstream this change (the autoconf machinery to detect memmove()
would be needed, along wth a memmove() implementation).
Second, and more serious here, I haven't been able to get a build to
actually compile this code, so while I believe it is correct, I am unable
to test it. This is intended to fix the sh3 builds on in the releng
daily builds, so we will see what happens. As best I can tell my build
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libc/rand: remove no-longer-needed LINTED comment
The calculation happens in unsigned integer mode, which is guaranteed to
wrap around on overflow. As long as RAND_MAX fits in 'int', the cast to
'int' is not necessary, but it doesn't hurt either.
bswap16: remove no-longer-needed LINTED comment
Lint computes the integer constraints for the expression and thus knows
that it fits in uint16_t. Since the default LINTFLAGS contain only a
single -a, lint wouldn't detect an accidental overflow at this point, it
would need a second -a flag.
Import jemalloc-5.3.1 (previous was 5.3.0)
This release includes over 390 commits spanning bug fixes, new features,
performance optimizations, and portability improvements. Multiple percent
of system-level metric improvements were measured in tested production
workloads. The release has gone through large-scale production testing
at Meta.
New features:
Support pvalloc. (@Lapenkov: 5b1f2cc)
Add double free detection for the debug build. (@izaitsevfb:
36366f3, @guangli-dai: 42daa1a, @divanorama: 1897f18)
Add compile-time option --enable-pageid to enable memory mapping
annotation. (@devnexen: 4fc5c4f)
Add runtime option prof_bt_max to control the max stack depth for
profiling. (@guangli-dai: a0734fd)
Add compile-time option --enable-force-getenv to use getenv instead
of secure_getenv. (@interwq: 481bbfc)
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