Start documenting history
https://www.bell-labs.com/usr/dmr/www/man31.pdf

branches: 1.35.4; 1.35.6;

Be more consistent with how we refer to fopen() - pointed out by wiz@

Some (mostly minor) wording improvements (IMO)

Fix xref. Remove Tn.

Implement nofollow (l) for fopen(3).

Allow changing the default buffering policy for a stdio stream during
construction by setting environment variables.

Use Pq to avoid space before O_EXCL.

branches: 1.29.8;
Add 'x' to the mode bits to specify O_EXCL, like glibc.

branches: 1.28.2;
Sort description of flags.

branches: 1.27.2; 1.27.4;
Use a list for clarity, update standards, etc.

Various minor improvements.

* Arrange for interfaces that create new file descriptors to be able to
set close-on-exec on creation (http://udrepper.livejournal.com/20407.html).

- Add F_DUPFD_CLOEXEC to fcntl(2).
- Add MSG_CMSG_CLOEXEC to recvmsg(2) for unix file descriptor passing.
- Add dup3(2) syscall with a flags argument for O_CLOEXEC, O_NONBLOCK.
- Add pipe2(2) syscall with a flags argument for O_CLOEXEC, O_NONBLOCK.
- Add flags SOCK_CLOEXEC, SOCK_NONBLOCK to the socket type parameter
for socket(2) and socketpair(2).
- Add new paccept(2) syscall that takes an additional sigset_t to alter
the sigmask temporarily and a flags argument to set SOCK_CLOEXEC,
SOCK_NONBLOCK.
- Add new mode character 'e' to fopen(3) and popen(3) to open pipes
and file descriptors for close on exec.
- Add new kqueue1(2) syscall with a new flags argument to open the
kqueue file descriptor with O_CLOEXEC, O_NONBLOCK.

* Fix the system calls that take socklen_t arguments to actually do so.

* Don't include userland header files (signal.h) from system header files
(rump_syscallargs.h).

* Bump libc version for the new syscalls.

\\ -> \e

Add restrict qualifiers to fopen()/freopen() arguments.

branches: 1.22.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Use
.In header.h
instead of
.Fd #include \*[Lt]header.h\*[Gt]
Much easier to read and write, and supported by groff for ages.
Okayed by ross.

avoid using multiple different ways of saying the same thing

Merge the nathanw_sa branch.

New sentence, new line. From Robert Elz.

import CAVEATS sections from OpenBSD.
with little tweak by me.

Add Xr to fileno(3).

Consistent wording: plain files -> regular files.

Generate <>& symbolically.

branches: 1.13.2;
Sprinkle some __restrict into stdio.

Make "f" standout better.

Comment out a paragraph describing behavior which NetBSD's fopen(3) does
not exhibit, per PR 6072.

add and "f" flag to fopen that makes sure we are opening a plain file,
so that there is no chance to block.

branches: 1.9.2;
* Add const keywords to function arguments as appropriate.
* Clarify the description of the initial position of the stream (some confusion
due to the way fdopen() was merged into a former ANSI-only document).

fix mdoc references and other mistakes

add LIBRARY section to man page

Fix a bizarre formatting error.

Add missing `STANDARDS' compliance statements. As we #define _POSIX_VERSION
to 199009L, bump existing statements to 1003.1-1990.

Merged with 4.4lite.
Changed to conform to NetBSD's new RCS Id convention.

Use "Er" for argument to -width in the lists in the ERROR sections so that
formatting is consistant.

Add RCS indentifiers.

branches: 1.1.1;
Initial revision