adb: extend sync protocol's stat support.
Extend the file sync protocol to support calling regular stat (instead
of lstat), return error codes, and provide the entire stat struct.
Bug: http://b/33058958
Test: python test_device.py with both old and new adbd
Change-Id: I841123debc380f86194a19e91c97d85160112144
diff --git a/adb/sysdeps/errno.cpp b/adb/sysdeps/errno.cpp
new file mode 100644
index 0000000..0f7f58a
--- /dev/null
+++ b/adb/sysdeps/errno.cpp
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#include "sysdeps/errno.h"
+
+#include <errno.h>
+
+#include <thread>
+#include <unordered_map>
+
+#include "adb.h"
+
+#if defined(_WIN32)
+#define ETXTBSY EBUSY
+#endif
+
+static std::unordered_map<int, int> initialize_translations() {
+ std::unordered_map<int, int> translations;
+#if defined(__linux__)
+#define ERRNO_VALUE(error_name, linux_value) static_assert((error_name) == (linux_value), "")
+#else
+#define ERRNO_VALUE(error_name, linux_value) \
+ translations.insert(std::make_pair((linux_value), (error_name)))
+#endif
+ // Untranslated errno values returned by open: EDQUOT, ENODEV, ENXIO, EWOULDBLOCK
+ ERRNO_VALUE(EACCES, 13);
+ ERRNO_VALUE(EEXIST, 17);
+ ERRNO_VALUE(EFAULT, 14);
+ ERRNO_VALUE(EFBIG, 27);
+ ERRNO_VALUE(EINTR, 4);
+ ERRNO_VALUE(EINVAL, 22);
+ ERRNO_VALUE(EIO, 5);
+ ERRNO_VALUE(EISDIR, 21);
+ ERRNO_VALUE(ELOOP, 40);
+ ERRNO_VALUE(EMFILE, 24);
+ ERRNO_VALUE(ENAMETOOLONG, 36);
+ ERRNO_VALUE(ENFILE, 23);
+ ERRNO_VALUE(ENOENT, 2);
+ ERRNO_VALUE(ENOMEM, 12);
+ ERRNO_VALUE(ENOSPC, 28);
+ ERRNO_VALUE(ENOTDIR, 20);
+ ERRNO_VALUE(EOVERFLOW, 75);
+ ERRNO_VALUE(EPERM, 1);
+ ERRNO_VALUE(EROFS, 30);
+ ERRNO_VALUE(ETXTBSY, 26);
+ return translations;
+}
+
+int translate_linux_errno(int error) {
+#if defined(__linux__)
+ UNUSED(initialize_translations);
+ return error;
+#else
+ static std::unordered_map<int, int> translations = initialize_translations();
+ auto it = translations.find(error);
+ if (it != translations.end()) {
+ return it->second;
+ }
+ fatal("received unexpected remote errno: %d", error);
+#endif
+}
diff --git a/adb/sysdeps/errno.h b/adb/sysdeps/errno.h
new file mode 100644
index 0000000..d514184
--- /dev/null
+++ b/adb/sysdeps/errno.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2016 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
+
+int translate_linux_errno(int error);