unix: implement Getwd using getcwd from libSystem on darwin
Directly wrap the getcwd implementation provided by libSystem.dylib on
darwin and use it to implement Getwd like on the BSDs. This allows to
drop the custom implementation using getAttrList and to merge the
implementation of Getwd for darwin and the BSDs in syscall_bsd.go.
Change-Id: I62d38a239a7279fb95c912344bda2830856d4da4
Reviewed-on: https://go-review.googlesource.com/c/sys/+/257497
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/unix/syscall_bsd.go b/unix/syscall_bsd.go
index 9ebe92e..123536a 100644
--- a/unix/syscall_bsd.go
+++ b/unix/syscall_bsd.go
@@ -18,6 +18,21 @@
"unsafe"
)
+const ImplementsGetwd = true
+
+func Getwd() (string, error) {
+ var buf [PathMax]byte
+ _, err := Getcwd(buf[0:])
+ if err != nil {
+ return "", err
+ }
+ n := clen(buf[:])
+ if n < 1 {
+ return "", EINVAL
+ }
+ return string(buf[:n]), nil
+}
+
/*
* Wrapped
*/
