From Michal Mazurek <akfaew at jasminek dot net>.
OK tedu@

The getenv(3) and unsetenv(3) functions already support this.
This will make it easier to emulate the glibc clearenv() function in ports.
Based on a diff from and OK jca@

Michael McConville

data isn't necessary.
ok mpi@, ok&tweak natano@

correctly - logically complete that now by removing MLINKS from base;
authors need only to ensure there is an entry in NAME for any function/
util being added. MLINKS will still work, and remain for perl to ease
upgrades;
ok nicm (curses) bcook (ssl)
ok schwarze, who provided a lot of feedback and assistance
ok tb natano jung

ok otto@

ok @stefan armani@

in libc's hidden/stdlib.h instead of in each .c file that needs one
ok deraadt@ gsoares@ mpi@

void return types 'return no value'. This is obvious and therefore
unneccessary to mention.
We spare rewind(3)'s sentence because espie@ pointed out that it's a
warning - the function masks a potential error.
This commit also adds a sentence to X509_free clarifying that it's
NULL-safe. This bit was discussed with doug@.
ok martijn@, sentiment supported by schwarze@

about which options are turned on/off by 's' and 'S'
ok tedu

improvements sthen@, jmc@. okay millert@, jca@ jmc@

There is long-standing consensus that err(1, NULL) is the best idiom
after failure of malloc(3) and friends.
Quirk in the manual noticed by tb@.

David CARLIER

The 'A' option elevated warnings to errors, and has been the default for some
time. Then warnings were effectively eliminated in favor of everything
being an error, but then the 'a' flag turned real errors into warnings!
Remove the 'a' option entirely. You shouldn't have used it anyway.
ok tb tdeval

the examples.
Diff from Juuso Lapinlampi < wub () partyvan ! eu >, thanks!
ok schwarze@

validate_junk. from Michal Mazurek

ok and valuable input from millert@

ok tedu@

This is slightly less robust, but RAND_MAX must be one below a power
of two in both variants anyway.
Based on a suggestion by Matthew Martin.
ok tedu@

1. Optionally add random "canaries" to the end of an allocation. This
requires increasing the internal size of the allocation slightly, which
probably results in a large effective increase with current power of two
sizing. Therefore, this option is only enabled via 'C'.
2. When writing junk (0xdf) to freed chunks (current default behavior),
check that the junk is still intact when finally freeing the delayed chunk
to catch some potential use after free. This should be pretty cheap so
there's no option to control it separately.
ok deraadt tb

straight replace: thanks both to schwarze and maja for feedback
on how to rewrite parts;
i've snuck in an rcs id->openbsd id change in dev_mkdb too;

ok tedu@

ok millert@

ok jmc@

Berzerkeley DB code.

or otherwise change Dt to reflect the name of an existing function;
feedback/ok schwarze

stubs for the executable from crtbegin.o into libc, which lets them be
excluded from static links that don't use them.
For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini
sections for libc aren't called at the right times anyway, so it's good that
they're unused.  libc.so just needs __guard_local and the .note.openbsd.ident
section, so add them to stack_protector.c for now (this will be improved)
"good time" deraadt@

doesn't get pulled into all static executables
ok millert@ jca@

Wrap __cxa_{atexit,finalize}() so the call from exit() goes direct
Switch regress/lib/libc/atexit/ to be built with -static so that it can
still access __atexit*
ok millert@ jca@

are the errno messages and signal names.  Everything else is in
English.  We are not planning to translate more text.  Running a
mixed system with less than 1% of the text in native language makes
no sense.  So remove the NLS support from libc messages.  The
catopen(3) functions stay as they are.
OK stsp@ mpi@

wrappers.  To keep uses from crawling back in, mark signal() as
deprecated inside libc.
ok deraadt@

SIGINT and SIGQUIT with sigaction() instead of signal() so that all bits
are preserved.
ok deraadt@ millert@

into libc, and move pthread_sigmask() as well (just a trivial wrapper).
This provides consistent handling of SIGTHR between single- and multi-threaded
programs and is a step in the merge of all the libpthread overloads, providing
some ASM and Makefile bits that the other wrappers will need.
ok deraadt@ millert@

the truncation check immediately following it was not updated to
match.  Not an issue in practice since the buffers are the same
size.  OK deraadt@

case, by deleting some useless '& of an array' we also eliminate the need
for the casts which prompted the original lint warnings
ok deraadt@

ok millert@

on arm and m88k
problems with optind observed by jsg@

development of a cargo cult in case people look at existing files
for examples.  This achieves a consistent .Fo and .Fn quoting style
across the whole tree.