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ddns4cdn wakatime

自动获取本机 IP 并更新 CDN 源站地址，同时支持 IPV4 和 IPV6。

Supported Cloud Services

  • Cloudflare

  • Alibaba Cloud ECDN

  • Tencent Cloud DCDN

Config

See example

Run

./ddns4cdn -c config.toml

Build

Tips for developers using macOS:

You don't need Xcode (but still need to install command line tools) to build executables and libraries (including Swift).

I created this project without opening Xcode at all, you can do the same.

Xcode sucks. It doesn't provide a human-readable configuration file. When I search on Google for development problems about macOS, most of the results are about Xcode (even on Stack Overflow). Using the mouse to click buttons is not a good way to develop. It is not efficient and not reproducible. I don't want to use a tool that I don't know how it works.

Executable

go build -o build/ddns4cdn[.exe] ./src

Set GOOS and GOARCH to build for other platforms.

Library

Requirements

Windows

  • Mingw-w64 (GCC, required for go build)

    WinLibs's build is recommended, tested with MCF and UCRT.

  • Microsoft C++ Build Tools (MSVC, optional)

    go build doesn't support MSVC, but you can use MSVC to build exe and dll.

macOS / Linux

GCC or Clang

go build can use GCC or Clang, set CC to switch.

Static library

Prepare the library
go build -o build/ddns4cdn.a -buildmode=c-archive ./src/cgo/go
GCC
# C
gcc -o build/ddns4cdn_c src/cgo/c/main.c build/ddns4cdn.a
# C++
g++ -o build/ddns4cdn_cpp src/cgo/cpp/main.cc build/ddns4cdn.a
Clang
# C
clang -o build/ddns4cdn_c src/cgo/c/main.c build/ddns4cdn.a -framework CoreFoundation -framework Security -lresolv
# C++
clang++ -o build/ddns4cdn_cpp src/cgo/cpp/main.cc build/ddns4cdn.a -framework CoreFoundation -framework Security -lresolv
# Objective-C
clang -o build/ddns4cdn_objc src/cgo/objc/main.m build/ddns4cdn.a -framework Foundation -framework Security -lresolv
MSVC
# only supports amd64
& "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\Common7\Tools\Launch-VsDevShell.ps1" -Arch amd64 -HostArch amd64

# C
cl /MD /Fe"build\ddns4cdn_msvc_c.exe" /Fo"build\ddns4cdn_msvc_c.obj" src\cgo\c\main.c /link build\ddns4cdn.a
# C++
cl /EHsc /MD /Fe"build\ddns4cdn_msvc_cpp.exe" /Fo"build\ddns4cdn_msvc_cpp.obj" src\cgo\cpp\main.cc /link build\ddns4cdn.a

Shared library

Prepare the library
go build -o build/ddns4cdn.so -buildmode=c-shared ./src/cgo/go
GCC
# C
gcc -o build/ddns4cdn_dl_c src/cgo/c/main.c build/ddns4cdn.so
# C++
g++ -o build/ddns4cdn_dl_cpp src/cgo/cpp/main.cc build/ddns4cdn.so
Clang
# C
clang -o build/ddns4cdn_dl_c src/cgo/c/main.c build/ddns4cdn.so
# C++
clang++ -o build/ddns4cdn_dl_cpp src/cgo/cpp/main.cc build/ddns4cdn.so
# Objective-C
clang -o build/ddns4cdn_dl_objc src/cgo/objc/main.m build/ddns4cdn.so -framework Foundation

# set DYLD_LIBRARY_PATH to load shared library
export DYLD_LIBRARY_PATH=$(realpath build)
MSVC

Building a dynamic-link library (.dll) requires a static library (.a) as a link file.

See the previous section for how to build a static library.

```powershell
# only supports amd64
& "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\Common7\Tools\Launch-VsDevShell.ps1" -Arch amd64 -HostArch amd64

# DLL
cl /LD /MD /Fe"build\ddns4cdn.dll" /Fo"build\ddns4cdn.obj" src\cgo\msvc\ddns4cdn.c /link /DEF:src\cgo\msvc\ddns4cdn.def build\ddns4cdn.a

# C
cl /DNO_CGO_LIB /Fe"build\ddns4cdn_msvc_dl_c.exe" /Fo"build\ddns4cdn_msvc_dl_c.obj" src\cgo\c\main.c /link build\ddns4cdn.lib
# C++
cl /DNO_CGO_LIB /EHsc /Fe"build\ddns4cdn_msvc_dl_cpp.exe" /Fo"build\ddns4cdn_msvc_dl_cpp.obj" src\cgo\cpp\main.cc /link build\ddns4cdn.lib

C#

Compiling C# code requires a dynamic-link library (.dll).

See the previous section for how to build a dll.

cd src/cgo/csharp
dotnet publish

Swift

cd src/cgo/swift
# the output binary is .build/release/ddns4cdn
# and .build/release/ddns4cdn_dl
swift build -c release

# to use ddns4cdn_dl, set DYLD_LIBRARY_PATH to load shared library
# ddns4cdn linked a static library, so you don't need to set it
export DYLD_LIBRARY_PATH=$(realpath ../../../build)

Go mobile

Requirements

Go Mobile

Android:

Android SDK Command-Line Tools

iOS:

Xcode Command Line Tools

Build

cd src/gomobile
# Android
gomobile bind -o ../../build/ddns4cdn.aar -target android -javapkg ddns4cdn -androidapi 34
# iOS and macOS
gomobile bind -o ../../build/Ddns4cdn.xcframework -target ios,macos -prefix Ddns4cdn -iosversion 17