diff --git a/base/include/android-base/file.h b/base/include/android-base/file.h
index 8f9bf80..86d537d 100644
--- a/base/include/android-base/file.h
+++ b/base/include/android-base/file.h
@@ -20,6 +20,8 @@
 #include <sys/types.h>
 #include <string>
 
+#include "android-base/off64_t.h"
+
 #if !defined(_WIN32) && !defined(O_BINARY)
 /** Windows needs O_BINARY, but Unix never mangles line endings. */
 #define O_BINARY 0
@@ -30,11 +32,6 @@
 #define O_CLOEXEC O_NOINHERIT
 #endif
 
-#if defined(__APPLE__)
-/** Mac OS has always had a 64-bit off_t, so it doesn't have off64_t. */
-typedef off_t off64_t;
-#endif
-
 namespace android {
 namespace base {
 
diff --git a/base/include/android-base/mapped_file.h b/base/include/android-base/mapped_file.h
index 667ba7e..80513b1 100644
--- a/base/include/android-base/mapped_file.h
+++ b/base/include/android-base/mapped_file.h
@@ -16,12 +16,8 @@
 
 #pragma once
 
-#if __APPLE__
-/* Temporary Mac build fix for off64_t. TODO: refactor into `portability.h`. */
-#include "android-base/file.h"
-#endif
-
 #include "android-base/macros.h"
+#include "android-base/off64_t.h"
 
 #include <sys/types.h>
 
diff --git a/base/include/android-base/off64_t.h b/base/include/android-base/off64_t.h
new file mode 100644
index 0000000..e6b71b8
--- /dev/null
+++ b/base/include/android-base/off64_t.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#if defined(__APPLE__)
+/** Mac OS has always had a 64-bit off_t, so it doesn't have off64_t. */
+typedef off_t off64_t;
+#endif
diff --git a/fastboot/fastboot.cpp b/fastboot/fastboot.cpp
index 81350fd..6e257c9 100644
--- a/fastboot/fastboot.cpp
+++ b/fastboot/fastboot.cpp
@@ -1092,12 +1092,20 @@
     }
 }
 
+static bool is_logical(const std::string& partition) {
+    std::string value;
+    return fb->GetVar("is-logical:" + partition, &value) == fastboot::SUCCESS && value == "yes";
+}
+
 static void do_flash(const char* pname, const char* fname) {
     struct fastboot_buffer buf;
 
     if (!load_buf(fname, &buf)) {
         die("cannot load '%s': %s", fname, strerror(errno));
     }
+    if (is_logical(pname)) {
+        fb->ResizePartition(pname, std::to_string(buf.image_size));
+    }
     flash_buf(pname, &buf);
 }
 
@@ -1140,11 +1148,6 @@
     return fb->GetVar("partition-size:" + partition_name, &partition_size) == fastboot::SUCCESS;
 }
 
-static bool is_logical(const std::string& partition) {
-    std::string value;
-    return fb->GetVar("is-logical:" + partition, &value) == fastboot::SUCCESS && value == "yes";
-}
-
 static void reboot_to_userspace_fastboot() {
     fb->RebootTo("fastboot");
 
diff --git a/libcutils/include/cutils/sockets.h b/libcutils/include/cutils/sockets.h
index b24468b..285f150 100644
--- a/libcutils/include/cutils/sockets.h
+++ b/libcutils/include/cutils/sockets.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef __CUTILS_SOCKETS_H
-#define __CUTILS_SOCKETS_H
+#pragma once
 
 #include <errno.h>
 #include <limits.h>
@@ -141,19 +140,6 @@
                             const cutils_socket_buffer_t* buffers,
                             size_t num_buffers);
 
-/*
- * socket_peer_is_trusted - Takes a socket which is presumed to be a
- * connected local socket (e.g. AF_LOCAL) and returns whether the peer
- * (the userid that owns the process on the other end of that socket)
- * is one of the two trusted userids, root or shell.
- *
- * Note: This only works as advertised on the Android OS and always
- * just returns true when called on other operating systems.
- */
-extern bool socket_peer_is_trusted(int fd);
-
 #ifdef __cplusplus
 }
 #endif
-
-#endif /* __CUTILS_SOCKETS_H */
diff --git a/libcutils/sockets_unix.cpp b/libcutils/sockets_unix.cpp
index 0cb8a4d..2248817 100644
--- a/libcutils/sockets_unix.cpp
+++ b/libcutils/sockets_unix.cpp
@@ -32,34 +32,6 @@
 
 #include "android_get_control_env.h"
 
-#if defined(__ANDROID__)
-/* For the socket trust (credentials) check */
-#include <private/android_filesystem_config.h>
-#define __android_unused
-#else
-#define __android_unused __attribute__((__unused__))
-#endif
-
-bool socket_peer_is_trusted(int fd __android_unused) {
-#if defined(__ANDROID__)
-    ucred cr;
-    socklen_t len = sizeof(cr);
-    int n = getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cr, &len);
-
-    if (n != 0) {
-        ALOGE("could not get socket credentials: %s\n", strerror(errno));
-        return false;
-    }
-
-    if ((cr.uid != AID_ROOT) && (cr.uid != AID_SHELL)) {
-        ALOGE("untrusted userid on other end of socket: userid %d\n", cr.uid);
-        return false;
-    }
-#endif
-
-    return true;
-}
-
 int socket_close(int sock) {
     return close(sock);
 }