GitHubMirror/sys
1
0
Fork 0
mirror of https://github.com/rwinkhart/sys.git synced 2026-09-02 07:07:33 -04:00
Code Issues Packages Projects Releases Wiki Activity

unix: add Dup3 on FreeBSD

Browse Source 
Other BSDs provide dup3(2) syscall, on FreeBSD it is implemented as libc
function using fcntl(2). This CL adds similar Go implementation.

Fixes golang/go#55935

Change-Id: I9c6d762415c7bed5442966a7fcbf9a6f8dfdaf2a
Reviewed-on: https://go-review.googlesource.com/c/sys/+/470675
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Dmitri Goutnik
2023-02-24 13:20:54 +00:00
parent 748af6eb5d
commit 92c4c39f76
2 changed files with 77 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
unix/syscall_freebsd.go
+12
View File
@@ -325,6 +325,18 @@ func PtraceSingleStep(pid int) (err error) {
return ptrace(PT_STEP, pid, 1, 0)
}
func Dup3(oldfd, newfd, flags int) error {
if oldfd == newfd || flags&^O_CLOEXEC != 0 {
return EINVAL
}
how := F_DUP2FD
if flags&O_CLOEXEC != 0 {
how = F_DUP2FD_CLOEXEC
}
_, err := fcntl(oldfd, how, newfd)
return err
}
/*
* Exposed directly
*/