diff options
Diffstat (limited to 'lib/libsys/open.2')
| -rw-r--r-- | lib/libsys/open.2 | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/lib/libsys/open.2 b/lib/libsys/open.2 index 84c4f02fce8a..a0e905a8f375 100644 --- a/lib/libsys/open.2 +++ b/lib/libsys/open.2 @@ -25,7 +25,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd April 3, 2025 +.Dd May 17, 2025 .Dt OPEN 2 .Os .Sh NAME @@ -195,6 +195,9 @@ error if file is not a directory .It Dv O_CLOEXEC automatically close file on .Xr execve 2 +.It Dv O_CLOFORK +automatically close file on any child process created with +.Fn fork 2 .It Dv O_VERIFY verify the contents of the file with .Xr mac_veriexec 4 @@ -360,6 +363,27 @@ may be used to set .Dv FD_CLOEXEC flag for the newly returned file descriptor. .Pp +.Dv O_CLOFORK +may be used to set +.Dv FD_CLOFORK +flag for the newly returned file descriptor. +The file will be closed on any child process created with +.Fn fork 2 , +.Fn vfork 2 +or +.Fn rfork 2 +with the +.Dv RFFDG +flag, remaining open in the parent. +Both the +.Dv O_CLOEXEC +and +.Dv O_CLOFORK +flags can be modified with the +.Dv F_SETFD +.Fn fcntl 2 +command. +.Pp .Dv O_VERIFY may be used to indicate to the kernel that the contents of the file should be verified before allowing the open to proceed. @@ -846,6 +870,9 @@ function was introduced in appeared in 13.0. .Dv O_NAMEDATTR appeared in 15.0. +.Dv O_CLOFORK +appeared in +.Fx 15.0 . .Sh BUGS The .Fa mode |