chore: checkpoint before Python removal

vendor/aws-lc-sys/aws-lc/crypto/console/internal.h

@@ -0,0 +1,37 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0 OR ISC
+
+#include <openssl/base.h>
+
+#define MIN_LENGTH 4
+#define MAX_PASSWORD_LENGTH 1024
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+// Console Management API
+//
+// This API provides functions for secure console I/O operations, supporting both Unix/Linux
+// (termios) and Windows systems. It handles terminal operations like reading input with
+// optional echo suppression (for password entry) and signal handling.
+//
+// Usage requires proper lock management:
+// 1. Acquire the console mutex with openssl_console_acquire_mutex()
+// 2. Initialize console with openssl_console_open()
+// 3. Perform console operations (read/write)
+// 4. Clean up with openssl_console_close()
+// 5. Release the mutex with openssl_console_release_mutex()
+//
+// The global mutex must be held during all console operations and released after closing the console.
+OPENSSL_EXPORT void openssl_console_acquire_mutex(void);
+OPENSSL_EXPORT void openssl_console_release_mutex(void);
+OPENSSL_EXPORT int openssl_console_open(void);
+OPENSSL_EXPORT int openssl_console_close(void);
+OPENSSL_EXPORT int openssl_console_write(const char *str);
+OPENSSL_EXPORT int openssl_console_read(char *buf, int minsize, int maxsize, int echo);
+
+
+#if defined(__cplusplus)
+}  // extern C
+#endif