CVS log for src/lib/libc/gen/popen.3

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Default branch: MAIN

lib: Mark up error names in man pages with .Er

popen.3: revert s/null-/nul-/ change, this is subject to debate

popen.3: minor spelling, grammar, style, and xref tweaks

popen.3: move popenve from BUGS to HISTORY

Sync with HEAD

Sync with HEAD

Use Fn for function name.

Whitespace fixes. Remove duplicate Pp.

Factor out popen() code into separate functions and create popenve()
using the new functions, a safer version of popen() that does not
involve a shell. Correct manual page inaccuracies.

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.

Add xref to shquote(3), suggested by joerg. Bump date.

file popen.3 was added on branch matt-mips64 on 2007-08-02 23:45:11 +0000

Add xref to shquote(3), suggested by joerg. Bump date.

Pull up revisions 1.14-1.15 (requested by kleink in ticket #658):
  Add a STANDARDS section; fixes PR#25957.

Bump date for previous.

Add a STANDARDS section; noted by Peter Bex in PR standards/25957.

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.

Grammar fix in return values section.

Catch up to -current.

Catch up to -current.

Generate <>& symbolically.

Catch up to -current.

Standardize section headers, sort sections, sort SEE ALSO, punctuation
and misc. fixes.

Fix mdoc .Xr reference for syntax or correctness (e.g. exec(2) versus exec(3)).
Make other mdoc corrections as inspection dictated.

add LIBRARY section to man page

merge/update to lite-2

import lite-2

clean up Id's on files previously imported...

clean up conflicts

merge our changes into 4.4lite

44lite code

Add RCS identifiers.

initial import of 386bsd-0.1 sources

Initial revision