mlockall.2: Point out MCL_CURRENT is not yet implemented (refs #1921).

libc/stdtime: Set errno to EOVERFLOW when there is an overflow.

This fixes various issues such as gmtime() returning NULL on an
out-of-bounds time_t but not setting errno, as POSIX requires.

Also,

libc/stdtime: Set errno to EOVERFLOW when there is an overflow.

This fixes various issues such as gmtime() returning NULL on an
out-of-bounds time_t but not setting errno, as POSIX requires.

Also, in ctime() and ctime_r(), check the result of localtime()
before passing it to asctime{,_r}().

See:
https://github.com/eggert/tz/commit/4d306b3a17ce5ce0b33a73a90dc713d3601ea89a

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Add base64(3) man page for b64_ntop() and b64_pton()

Reviewed-and-improved-by: swildner

libc/net: Fix b64_pton() for some exact-sized buffer

When decoding a base64 string with padding, b64_pton() can fail when the
output buffer is exactly the needed size. For example, decoding the
fol

libc/net: Fix b64_pton() for some exact-sized buffer

When decoding a base64 string with padding, b64_pton() can fail when the
output buffer is exactly the needed size. For example, decoding the
following base64 string to buffer[32] would fail:

% dd if=/dev/random bs=32 count=1 | base64
FCiWkKuhdRq3tMmtAt9CpchTTYMlIW3U3gJsavDNxZI=

This commit fixes the above issue.

Reported-by: dczheng
Obtained-from: OpenBSD
See also: FreeBSD revision 275060, https://reviews.freebsd.org/D1218

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libc/net: Multiple minor cleanups to base64.c

* Remove unused but included headers.
* Use 'unsigned char' instead of 'u_char'.
* Properly cast 'char' to 'unsigned char'.
* Remove the debug Assert()s

libc/net: Multiple minor cleanups to base64.c

* Remove unused but included headers.
* Use 'unsigned char' instead of 'u_char'.
* Properly cast 'char' to 'unsigned char'.
* Remove the debug Assert()s.

Partially obtained from OpenBSD.

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libc - Protect dbm_*() API with a mutex

* The dbm_*() API is not thread-safe. Generally speaking, libc is
expected to be thread-safe these days.

* Protect the dbm_*() API with a mutex in the DB

libc - Protect dbm_*() API with a mutex

* The dbm_*() API is not thread-safe. Generally speaking, libc is
expected to be thread-safe these days.

* Protect the dbm_*() API with a mutex in the DB (aka DBM) structure.
We use available pthread_mutex_*() stubs for the locking, so they
are basically NOPs for applications not linked against pthreads.

* Also protect dbm_delete() and dbm_store() with our new sigblockall() /
sigunblockall() mechanism to prevent corruption due to ^C and
other regular signals. This mechanism implements a simple kernel/user
shared-memory counter and flag, and imposes no additional system calls
in DBM's critical paths.

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Mark up defined values better in some manual pages.

libc: Adjust comment in Versions.def.

printf(3)/scanf(3): Make ll and L length modifiers equivalent.

POSIX defines L only for floating point numbers (long double) and ll only
for integer numbers (long long), leaving for example %Ld or %

printf(3)/scanf(3): Make ll and L length modifiers equivalent.

POSIX defines L only for floating point numbers (long double) and ll only
for integer numbers (long long), leaving for example %Ld or %llg
undefined. GCC allows these non-portable combinations as an extension,
i.e. -Wformat will not warn about them unless -pedantic is passed.

To avoid surprises with Linux code, go with glibc and make ll and L
equivalent. For base code, we still prefer going with the standard, of
course.

Interestingly, the alternate printf(3) implementation in libc (enabled
by defining USE_XPRINTF in the environment) already treats them equally.

In-discussion-with: zrj

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libc_rtld: Reduce the amount of libc code that we compile into it.

Fix some 'any more' vs. 'anymore' confusion in manpages and messages.

getopt.3: Clarify option string syntax

The recently added 'option::' syntax requires the following argument
(if present) *must* be in the same word as the option name itself
(e.g., "-x<arg>"). This

getopt.3: Clarify option string syntax

The recently added 'option::' syntax requires the following argument
(if present) *must* be in the same word as the option name itself
(e.g., "-x<arg>"). This is different than the normal 'option:' syntax,
for which the argument may have a leading white space (e.g., "-x <arg>").
Update the man page to explicitly describe the syntax.

Update to use a list to describe the 3 types of option string syntaxes
with examples.

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getopt.3: Fix date

Reported-by: swildner

getopt(3): Recognize 'option::' for optional argument

If the option is followed by two colons, then the option argument is
optional. This is a GNU extension.

Obtained from NetBSD via FreeBSD (revi

getopt(3): Recognize 'option::' for optional argument

If the option is followed by two colons, then the option argument is
optional. This is a GNU extension.

Obtained from NetBSD via FreeBSD (revision 267745).

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Remove unneeded .Ns macros in various manual pages.

Fix "macro neither callable nor escaped" mandoc warnings in the manpages.

Some of these were affecting the output.

libc: Add strerror_l() (taken from FreeBSD).

Reported-by: zrj

libc: Fix building without YP.

libc: Remove libc checks around manual pages from the Makefile.inc's.

Handle this better by setting NOMAN for libc_rtld.

libc - Increase opendir/readdir buffer size

* Increase the directory scan buffer size from 4096 bytes to 16384
bytes, significantly reducing the number of discrete system calls
which must be mad

libc - Increase opendir/readdir buffer size

* Increase the directory scan buffer size from 4096 bytes to 16384
bytes, significantly reducing the number of discrete system calls
which must be made when scanning very large directories.

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sysctl.3: Adjust for pageout daemon algo changes from last year.

Taken-from: dillon's commit message

libc/isc: Stop using self assignment for unused variables.

Some checkers complain about this.

Taken-from: FreeBSD

libc: Fix environment passing in posix_spawnp(3)

The execvPe() was always passing the parent process environment to
children (a long standing bug).

While there, replace the deprecated index(3) w

libc: Fix environment passing in posix_spawnp(3)

The execvPe() was always passing the parent process environment to
children (a long standing bug).

While there, replace the deprecated index(3) with strchr(3).

Reported-by: falsifian (breakage in hs-git-annex)

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Add a getentropy(3) manual page.

Taken-from: FreeBSD

libc - Add getentropy()

* Add getentropy(). This function uses getrandom() internally.

Requested-by: zrj, for dports