syscall: report unsupported WASI chown/fchown/lchown

src/syscall/syscall_libc.go

@@ -125,24 +125,6 @@ func Unlink(path string) (err error) {
 	return
 }
 
-func Chown(path string, uid, gid int) (err error) {
-	data := cstring(path)
-	fail := int(libc_chown(&data[0], uid, gid))
-	if fail < 0 {
-		err = getErrno()
-	}
-	return
-}
-
-func Lchown(path string, uid, gid int) (err error) {
-	data := cstring(path)
-	fail := int(libc_lchown(&data[0], uid, gid))
-	if fail < 0 {
-		err = getErrno()
-	}
-	return
-}
-
 func Fork() (err error) {
 	fail := int(libc_fork())
 	if fail < 0 {
@@ -329,16 +311,6 @@ func libc_chdir(pathname *byte) int32
 //export chmod
 func libc_chmod(pathname *byte, mode uint32) int32
 
-// int chown(const char *pathname, uid_t owner, gid_t group);
-//
-//export chown
-func libc_chown(pathname *byte, owner, group int) int32
-
-// int lchown(const char *pathname, uid_t owner, gid_t group);
-//
-//export lchown
-func libc_lchown(pathname *byte, owner, group int) int32
-
 // int mkdir(const char *pathname, mode_t mode);
 //
 //export mkdir

src/syscall/syscall_libc_nintendoswitch.go

@@ -36,6 +36,30 @@ var signals = [...]string{}
 
 // File system
 
+func Chown(path string, uid, gid int) (err error) {
+	data := cstring(path)
+	fail := int(libc_chown(&data[0], uid, gid))
+	if fail < 0 {
+		err = getErrno()
+	}
+	return
+}
+
+func Lchown(path string, uid, gid int) (err error) {
+	data := cstring(path)
+	fail := int(libc_lchown(&data[0], uid, gid))
+	if fail < 0 {
+		err = getErrno()
+	}
+	return
+}
+
+//export chown
+func libc_chown(pathname *byte, owner, group int) int32
+
+//export lchown
+func libc_lchown(pathname *byte, owner, group int) int32
+
 const (
 	Stdin  = 0
 	Stdout = 1

src/syscall/syscall_libc_wasi.go

@@ -411,6 +411,19 @@ func Chmod(path string, mode uint32) (err error) {
 	return Lstat(path, &stat)
 }
 
+// WASI has no ownership operations. Match Go's syscall/fs_wasip1.go.
+func Chown(path string, uid, gid int) error {
+	return ENOSYS
+}
+
+func Fchown(fd int, uid, gid int) error {
+	return ENOSYS
+}
+
+func Lchown(path string, uid, gid int) error {
+	return ENOSYS
+}
+
 // TODO: should this return runtime.wasmPageSize?
 func Getpagesize() int {
 	return libc_getpagesize()