Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+# CivetWeb API Reference
+
+CivetWeb is often used as HTTP and HTTPS library inside a larger application.
+A C API is available to integrate the CivetWeb functionality in a larger
+codebase. A C++ wrapper is also available, although it is not guaranteed
+that all functionality available through the C API can also be accessed
+from C++. This document describes the public C API. Basic usage examples of
+the API can be found in [Embedding.md](Embedding.md), as well as in the
+examples directory.
+
+## Macros
+
+| Macro | Description |
+| :--- | :--- |
+| **`CIVETWEB_VERSION`** | The current version of the software as a string with the major and minor version number seperated with a dot. For version 1.9, this string will have the value "1.9", for thw first patch of this version "1.9.1". |
+| **`CIVETWEB_VERSION_MAJOR`** | The current major version as number, e.g., (1) for version 1.9. |
+| **`CIVETWEB_VERSION_MINOR`** | The current minor version as number, e.g., (9) for version 1.9. |
+| **`CIVETWEB_VERSION_PATCH`** | The current patch version as number, e.g., (0) for version 1.9 or (1) for version 1.9.1. |
+
+## Handles
+
+* `struct mg_context *`
+Handle for one instance of the HTTP(S) server.
+All functions using `const struct mg_context *` as an argument do not modify a running server instance, but just query information. Functions using a non-const `struct mg_context *` as an argument may modify a server instance (e.g., register a new URI, stop the server, ...).
+
+* `struct mg_connection *`
+Handle for one individual client-server connection.
+Functions working with `const struct mg_connection *` operate on data already known to the server without reading data from or sending data to the client. Callbacks using a `const struct mg_connection *` argument are supposed to not call functions from the `mg_read()` and `mg_write()` family. To support a correct application, reading and writing functions require a non-const `struct mg_connection *` connection handle.
+
+The content of both structures is not defined in the interface - they are only used as opaque pointers (handles).
+
+## Structures
+
+* [`struct mg_client_cert;`](api/mg_client_cert.md)
+* [`struct mg_client_options;`](api/mg_client_options.md)
+* [`struct mg_callbacks;`](api/mg_callbacks.md)
+* [`struct mg_form_data_handler;`](api/mg_form_data_handler.md)
+* [`struct mg_header;`](api/mg_header.md)
+* [`struct mg_option;`](api/mg_option.md)
+* [`struct mg_request_info;`](api/mg_request_info.md)
+* [`struct mg_server_ports;`](api/mg_server_ports.md)
+
+
+## Library API Functions
+
+* [`mg_init_library( feature );`](api/mg_init_library.md)
+* [`mg_exit_library( feature );`](api/mg_exit_library.md)
+
+* [`mg_check_feature( feature );`](api/mg_check_feature.md)
+* [`mg_version();`](api/mg_version.md)
+
+
+## Server API Functions
+
+* [`mg_start( callbacks, user_data, options );`](api/mg_start.md)
+* [`mg_stop( ctx );`](api/mg_stop.md)
+
+* [`mg_get_builtin_mime_type( file_name );`](api/mg_get_builtin_mime_type.md)
+* [`mg_get_option( ctx, name );`](api/mg_get_option.md)
+* [`mg_get_server_ports( ctx, size, ports );`](api/mg_get_server_ports.md)
+* [`mg_get_user_data( ctx );`](api/mg_get_user_data.md)
+* [`mg_set_auth_handler( ctx, uri, handler, cbdata );`](api/mg_set_auth_handler.md)
+* [`mg_set_request_handler( ctx, uri, handler, cbdata );`](api/mg_set_request_handler.md)
+* [`mg_set_websocket_handler( ctx, uri, connect_handler, ready_handler, data_handler, close_handler, cbdata );`](api/mg_set_websocket_handler.md)
+
+* [`mg_lock_context( ctx );`](api/mg_lock_context.md)
+* [`mg_unlock_context( ctx );`](api/mg_unlock_context.md)
+
+* [`mg_get_context( conn );`](api/mg_get_context.md)
+
+* [`mg_send_http_error( conn, status_code, fmt, ... );`](api/mg_send_http_error.md)
+
+* [`mg_send_digest_access_authentication_request( conn, realm );`](api/mg_send_digest_access_authentication_request.md)
+* [`mg_check_digest_access_authentication( conn, realm, filename );`](api/mg_check_digest_access_authentication.md)
+* [`mg_modify_passwords_file( passwords_file_name, realm, user, password );`](api/mg_modify_passwords_file.md)
+
+
+## Client API Functions
+
+* [`mg_connect_client( host, port, use_ssl, error_buffer, error_buffer_size );`](api/mg_connect_client.md)
+* [`mg_connect_websocket_client( host, port, use_ssl, error_buffer, error_buffer_size, path, origin, data_func, close_func, user_data);`](api/mg_connect_websocket_client.md)
+* [`mg_websocket_client_write( conn, opcode, data, data_len );`](api/mg_websocket_client_write.md)
+
+* [`mg_download( host, port, use_ssl, error_buffer, error_buffer_size, fmt, ... );`](api/mg_download.md)
+
+
+## Common API Functions
+
+* [`mg_close_connection( conn );`](api/mg_close_connection.md)
+* [`mg_cry( conn, fmt, ... );`](api/mg_cry.md)
+
+* [`mg_get_cookie( cookie, var_name, buf, buf_len );`](api/mg_get_cookie.md)
+* [`mg_get_header( conn, name );`](api/mg_get_header.md)
+* [`mg_get_request_info( conn );`](api/mg_get_request_info.md)
+* [`mg_get_response( conn, ebuf, ebuf_len, timeout );`](api/mg_get_response.md)
+* [`mg_get_response_code_text( conn, response_code );`](api/mg_get_response_code_text.md)
+* [`mg_get_user_connection_data( conn );`](api/mg_get_user_connection_data.md)
+* [`mg_get_valid_options();`](api/mg_get_valid_options.md)
+* [`mg_get_var( data, data_len, var_name, dst, dst_len );`](api/mg_get_var.md)
+* [`mg_get_var2( data, data_len, var_name, dst, dst_len, occurrence );`](api/mg_get_var2.md)
+* [`mg_handle_form_request( conn, fdh );`](api/mg_handle_form_request.md)
+* [`mg_lock_connection( conn );`](api/mg_lock_connection.md)
+* [`mg_md5( buf, ... );`](api/mg_md5.md)
+* [`mg_printf( conn, fmt, ... );`](api/mg_printf.md)
+* [`mg_read( conn, buf, len );`](api/mg_read.md)
+* [`mg_send_chunk( conn, buf, len );`](api/mg_send_chunk.md)
+* [`mg_send_file( conn, path );`](api/mg_send_file.md)
+* [`mg_send_mime_file( conn, path, mime_type );`](api/mg_send_mime_file.md)
+* [`mg_send_mime_file2( conn, path, mime_type, additional_headers );`](api/mg_send_mime_file2.md)
+* [`mg_set_user_connection_data( conn, data );`](api/mg_set_user_connection_data.md)
+* [`mg_start_thread( f, p );`](api/mg_start_thread.md)
+* [`mg_store_body( conn, path );`](api/mg_store_body.md)
+* [`mg_strcasecmp( s1, s2 );`](api/mg_strcasecmp.md)
+* [`mg_strncasecmp( s1, s2, len );`](api/mg_strncasecmp.md)
+* [`mg_unlock_connection( conn );`](api/mg_unlock_connection.md)
+* [`mg_url_decode( src, src_len, dst, dst_len, is_form_url_encoded );`](api/mg_url_decode.md)
+* [`mg_url_encode( src, dst, dst_len );`](api/mg_url_encode.md)
+* [`mg_websocket_write( conn, opcode, data, data_len );`](api/mg_websocket_write.md)
+* [`mg_write( conn, buf, len );`](api/mg_write.md)
+
+
+## Diagnosis Functions
+
+* [`mg_get_system_info( buffer, buf_len );`](api/mg_get_system_info.md)
+* [`mg_get_context_info( ctx, buffer, buf_len );`](api/mg_get_context_info.md)
+* [`mg_get_connection_info( ctx, idx, buffer, buf_len );`](api/mg_get_context_info.md)
+
+
+## Deprecated:
+
+* [~~`mg_get_valid_option_names();`~~](api/mg_get_valid_option_names.md)
+* [~~`mg_upload( conn, destination_dir );`~~](api/mg_upload.md)
+
+