src/lib/libc/sys/close.2, branch releng/12.4

Mark all the system calls that were in 1st Edition Unix as such in the

2017-12-01T22:26:36Z

HISTORY section. Note: Any system calls that were added prior to v7, but after v1 weren't changed. Obtained from: http://www.tuhs.org/cgi-bin/utree.pl?file=V1/man/man2

Renumber copyright clause 4

2017-02-28T23:42:47Z

Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann Pull Request: https://github.com/freebsd/freebsd/pull/96

Consistently reference file descriptors as "fd". 55 other manpages

2013-09-12T00:53:38Z

used "fd", while these used "d" and "filedes". MFC after: 1 week Approved by: gjb Approved by: re (delphij)

Clarify the implementation-defined behaviour in case of close(2)

2012-01-22T11:58:17Z

returning error. MFC after: 1 week

Add a new 'void closefrom(int lowfd)' system call. When called, it closes

2009-06-15T20:38:55Z

any open file descriptors >= 'lowfd'. It is largely identical to the same function on other operating systems such as Solaris, DFly, NetBSD, and OpenBSD. One difference from other *BSD is that this closefrom() does not fail with any errors. In practice, while the manpages for NetBSD and OpenBSD claim that they return EINTR, they ignore internal errors from close() and never return EINTR. DFly does return EINTR, but for the common use case (closing fd's prior to execve()), the caller really wants all fd's closed and returning EINTR just forces callers to call closefrom() in a loop until it stops failing. Note that this implementation of closefrom(2) does not make any effort to resolve userland races with open(2) in other threads. As such, it is not multithread safe. Submitted by: rwatson (initial version) Reviewed by: rwatson MFC after: 2 weeks

Per Regents of the University of Calfornia letter, remove advertising

2007-01-09T00:28:16Z

clause. # If I've done so improperly on a file, please let me know.

Grammar.

2006-12-04T20:34:25Z

OK'ed by: sam

document recent change to return ECONNRESET for tcp sockets

2006-12-04T18:39:11Z

MFC after: 1 month

Mechanically kill hard sentence breaks.

2004-07-02T23:52:20Z

Document ENOSPC.

2003-06-13T22:41:12Z

PR: 52612 Submitted by: Marc Olzheim