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| author | kib <kib@FreeBSD.org> | 2012-07-27 10:41:53 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2012-07-27 10:41:53 +0000 |
| commit | 4e7839007ab707452aab4262d6fee9846bb28767 (patch) | |
| tree | 018dea469e87f3a8a46f326de6555aabd3b6bafa /lib/libc/sys/fcntl.2 | |
| parent | 5a2e16924f3798ee7f3bf930c0d43f38f18a69dd (diff) | |
| download | FreeBSD-src-4e7839007ab707452aab4262d6fee9846bb28767.zip FreeBSD-src-4e7839007ab707452aab4262d6fee9846bb28767.tar.gz | |
Document F_DUP2FD_CLOEXEC.
MFC after: 1 week
Diffstat (limited to 'lib/libc/sys/fcntl.2')
| -rw-r--r-- | lib/libc/sys/fcntl.2 | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/lib/libc/sys/fcntl.2 b/lib/libc/sys/fcntl.2 index 0844e87..63d6510 100644 --- a/lib/libc/sys/fcntl.2 +++ b/lib/libc/sys/fcntl.2 @@ -28,7 +28,7 @@ .\" @(#)fcntl.2 8.2 (Berkeley) 1/12/94 .\" $FreeBSD$ .\" -.Dd July 18, 2012 +.Dd July 27, 2012 .Dt FCNTL 2 .Os .Sh NAME @@ -54,7 +54,7 @@ Depending on the value of .Fn fcntl can take an additional third argument .Fa "int arg" . -.Bl -tag -width F_DUPFD_CLOEXEC +.Bl -tag -width F_DUP2FD_CLOEXEC .It Dv F_DUPFD Return a new descriptor as follows: .Pp @@ -94,13 +94,23 @@ It is functionally equivalent to .Bd -literal -offset indent dup2(fd, arg) .Ed +.It Dv F_DU2PFD_CLOEXEC +Like +.Dv F_DUP2FD , +but the +.Dv FD_CLOEXEC +flag associated with the new file descriptor is set. .Pp The .Dv F_DUP2FD -constant is not portable, so it should not be used if portability is needed. +and +.Dv F_DUP2DF_CLOEXEC +constants are not portable, so they should not be used if +portability is needed. Use .Fn dup2 -instead. +instead of +.Dv F_DUP2FD . .It Dv F_GETFD Get the close-on-exec flag associated with the file descriptor .Fa fd |
