Settings: add version

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

2 files changed, 22 insertions, 0 deletions

diff --git a/app/tools/libwg-go/src/git.zx2c4.com/wireguard-go/api-android.go b/app/tools/libwg-go/src/git.zx2c4.com/wireguard-go/api-android.go
index f5dae966..19063eec 100644
--- a/app/tools/libwg-go/src/git.zx2c4.com/wireguard-go/api-android.go
+++ b/app/tools/libwg-go/src/git.zx2c4.com/wireguard-go/api-android.go
@@ -160,4 +160,9 @@ func wgGetSocketV6(tunnelHandle int32) int32 {
 	return fd
 }
 
+//export wgVersion
+func wgVersion() string {
+	return WireGuardGoVersion
+}
+
 func main() {}
diff --git a/app/tools/libwg-go/src/git.zx2c4.com/wireguard-go/jni.c b/app/tools/libwg-go/src/git.zx2c4.com/wireguard-go/jni.c
index a0f3d0ba..acb2d728 100644
--- a/app/tools/libwg-go/src/git.zx2c4.com/wireguard-go/jni.c
+++ b/app/tools/libwg-go/src/git.zx2c4.com/wireguard-go/jni.c
@@ -4,12 +4,15 @@
  */
 
 #include <jni.h>
+#include <stdlib.h>
+#include <string.h>
 
 struct go_string { const char *str; long n; };
 extern int wgTurnOn(struct go_string ifname, int tun_fd, struct go_string settings);
 extern void wgTurnOff(int handle);
 extern int wgGetSocketV4(int handle);
 extern int wgGetSocketV6(int handle);
+extern struct go_string wgVersion();
 
 JNIEXPORT jint JNICALL Java_com_wireguard_android_backend_GoBackend_wgTurnOn(JNIEnv *env, jclass c, jstring ifname, jint tun_fd, jstring settings)
 {
@@ -43,3 +46,17 @@ JNIEXPORT jint JNICALL Java_com_wireguard_android_backend_GoBackend_wgGetSocketV
 {
 	return wgGetSocketV6(handle);
 }
+
+JNIEXPORT jstring JNICALL Java_com_wireguard_android_backend_GoBackend_wgVersion(JNIEnv *env, jclass c)
+{
+	struct go_string s = wgVersion();
+	char *cstr = malloc(s.n + 1);
+	if (!cstr)
+		return NULL;
+	jstring ret;
+	memcpy(cstr, s.str, s.n);
+	cstr[s.n] = '\0';
+	ret = (*env)->NewStringUTF(env, cstr);
+	free(cstr);
+	return ret;
+}