src/jdk.net/linux/native/libextnet/LinuxSocketOptions.c

*** 21,30 ****
--- 21,32 ----
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  #include <sys/socket.h>
+ #include <sys/un.h>
+ #include <sys/types.h>
  #include <string.h>
  #include <errno.h>
  #include <unistd.h>
  
  #include <jni.h>
*** 109,118 ****
--- 111,146 ----
      return socketOptionSupported(SOL_SOCKET, TCP_QUICKACK);
  }
  
  /*
   * Class:     jdk_net_LinuxSocketOptions
+  * Method:    getSoPeerCred0
+  * Signature: (I[I)I
+  */
+ JNIEXPORT void JNICALL Java_jdk_net_LinuxSocketOptions_getSoPeerCred0
+   (JNIEnv *env, jclass clazz, jint fd, jintArray result) {
+ 
+     int rv;
+     struct ucred cred;
+     socklen_t len = sizeof(cred);
+     int *rr = (int *)(*env)->GetIntArrayElements(env, result, NULL);
+ 
+     if ((rv=getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cred, &len)) < 0) {
+         handleError(env, rv, "get SO_PEERCRED failed");
+     } else {
+         if ((int)cred.uid == -1) {
+             handleError(env, -1, "get SO_PEERCRED failed");
+         } else {
+             rr[0] = cred.uid;
+             rr[1] = cred.gid;
+         }
+     }
+     (*env)->ReleaseIntArrayElements(env, result, rr, 0);
+ }
+ 
+ /*
+  * Class:     jdk_net_LinuxSocketOptions
   * Method:    keepAliveOptionsSupported0
   * Signature: ()Z
   */
  JNIEXPORT jboolean JNICALL Java_jdk_net_LinuxSocketOptions_keepAliveOptionsSupported0
  (JNIEnv *env, jobject unused) {