Author: kib Date: Fri Apr 1 12:52:55 2011 New Revision: 220242 URL: http://svn.freebsd.org/changeset/base/220242
Log: MFC r220000: Document O_CLOEXEC. Modified: stable/8/lib/libc/sys/open.2 Directory Properties: stable/8/lib/libc/ (props changed) stable/8/lib/libc/stdtime/ (props changed) Modified: stable/8/lib/libc/sys/open.2 ============================================================================== --- stable/8/lib/libc/sys/open.2 Fri Apr 1 12:50:29 2011 (r220241) +++ stable/8/lib/libc/sys/open.2 Fri Apr 1 12:52:55 2011 (r220242) @@ -28,7 +28,7 @@ .\" @(#)open.2 8.2 (Berkeley) 11/16/93 .\" $FreeBSD$ .\" -.Dd February 28, 2009 +.Dd March 25, 2011 .Dt OPEN 2 .Os .Sh NAME @@ -117,6 +117,7 @@ O_SYNC synchronous writes O_NOFOLLOW do not follow symlinks O_NOCTTY don't assign controlling terminal O_TTY_INIT restore default terminal attributes +O_CLOEXEC set FD_CLOEXEC upon open .Ed .Pp Opening a file with @@ -222,6 +223,11 @@ The initial call to on a TTY will always restore default terminal attributes on .Fx . .Pp +.Dv O_CLOEXEC +may be used to set +.Dv FD_CLOEXEC +flag for the newly returned file descriptor. +.Pp If successful, .Fn open returns a non-negative integer, termed a file descriptor. @@ -232,12 +238,18 @@ file is set to the beginning of the file When a new file is created it is given the group of the directory which contains it. .Pp -The new descriptor is set to remain open across +Unless +.Dv +O_CLOEXEC +flag was specified, +the new descriptor is set to remain open across .Xr execve 2 system calls; see -.Xr close 2 +.Xr close 2 , +.Xr fcntl 2 and -.Xr fcntl 2 . +.Dv O_CLOEXEC +description. .Pp The system imposes a limit on the number of file descriptors open simultaneously by one process. _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
