1 files changed, 18 insertions, 0 deletions
diff --git a/tdesu/client.cpp b/tdesu/client.cpp
index fe5733ee7..8c775bbed 100644
--- a/tdesu/client.cpp
+++ b/tdesu/client.cpp
@@ -19,6 +19,9 @@
 #include <pwd.h>
 #include <errno.h>
 #include <string.h>
+#ifdef HAVE_UCRED_H
+#include <ucred.h>
+#endif /* HAVE_UCRED_H */
 
 #include <sys/types.h>
 #include <sys/socket.h>
@@ -146,6 +149,21 @@ int TDEsuClient::connect()
 	return -1;
     }
 # endif
+#elif defined(HAVE_GETPEERUCRED)
+    ucred_t *cred = nullptr;
+
+    if (getpeerucred(sockfd, &cred) == 0) {
+        uid_t peer_uid = ucred_geteuid(cred);
+
+        ucred_free(cred);
+        if (peer_uid != getuid()) {
+            kdWarning(900) << "socket not owned by me! socket uid = " << peer_uid << endl;
+            close(sockfd); sockfd = -1;
+            return -1;
+        }
+    }
+    if (cred != nullptr)
+        ucred_free(cred);
 #else
     struct ucred cred;
     socklen_t siz = sizeof(cred);