Port GetCurrentDeviceID()

.gitignore

@@ -1,4 +1,4 @@
 /cmutton.a
 /cmutton.h
-/test.c
+/testc
 /a.out

README.md

@@ -36,7 +36,7 @@ Build the C library + headers w/`go build -buildmode=c-archive`.
 - [ ] global
     - [X] DirInit(preserveOldCfgDir bool) (string, error)
     - [ ] ~~GenDeviceIDList() ([]fs.DirEntry, error)~~
-    - [ ] GetCurrentDeviceID() (string, error)
+    - [X] GetCurrentDeviceID() (string, error)
     - [ ] GetRealAgePath(vanityPath string) string
     - [ ] GetRealPath(vanityPath string) string
     - [ ] GetSysProcAttr() *syscall.SysProcAttr

global.go

@@ -9,7 +9,7 @@ import (
 )
 
 // DirInit returns:
-// r0: oldDeviceID (special case: see libmutton docs)
+// r0: oldDeviceID (FSMisc if none)
 //
 // r1: err
 //
@@ -22,4 +22,18 @@ func DirInit(preserveOldCfgDir bool) (*C.char, *C.char) {
 	return C.CString(oldDeviceID), nil
 }
 
+// GetCurrentDeviceID returns:
+// r0: currentDeviceID (FSMisc if none)
+//
+// r1: err
+//
+//export GetCurrentDeviceID
+func GetCurrentDeviceID() (*C.char, *C.char) {
+	currentDeviceID, err := global.GetCurrentDeviceID()
+	if err != nil {
+		return nil, C.CString(err.Error())
+	}
+	return C.CString(currentDeviceID), nil
+}
+
 func main() {}