feat: add mdns

recipes/mdns/all/conandata.yml

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+sources:
+  "20200225":
+    sha256: 5f327b56d932ed5c1a28b7b1b1f528ddfbf69cb45bc4a8d38301ab85116e4b0e
+    url: https://github.com/mjansson/mdns/archive/0f75def961433102dc4848564c1a865f473dfaed.zip

recipes/mdns/all/conanfile.py

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+import os
+from conans import CMake, ConanFile, tools
+
+
+class MdnsConan(ConanFile):
+    name = "mdns"
+    license = "Public Domain or MIT"
+    homepage = "https://github.com/mjansson/mdns"
+    url = "https://github.com/conan-io/conan-center-index"
+    description = """Public domain mDNS/DNS-SD library in C"""
+    topics = ("mdns")
+    settings = "os"
+    no_copy_source = True
+
+    @property
+    def _source_subfolder(self):
+        return "source_subfolder"
+
+    @property
+    def _build_subfolder(self):
+        return "build_subfolder"
+
+    def source(self):
+        tools.get(**self.conan_data["sources"][self.version])
+        extracted_dir = self.name + "-" + \
+            os.path.basename(
+                self.conan_data["sources"][self.version]["url"]).split(".")[0]
+        os.rename(extracted_dir, self._source_subfolder)
+
+    def package(self):
+        self.copy("LICENSE", dst="licenses", src=self._source_subfolder)
+        self.copy(pattern="*.h", dst="include", src=self._source_subfolder)
+
+    def package_info(self):
+        if self.settings.os == "Windows":
+            self.cpp_info.libs = ["iphlpapi", "ws2_32"]
+        if str(self.settings.os) in ["Linux", "Android"]:
+            self.cpp_info.libs.append('pthread')
+
+    def package_id(self):
+        self.info.header_only()

recipes/mdns/all/test_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 2.8.11)
+project(test_package C)
+
+include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+conan_basic_setup()
+
+add_executable(${PROJECT_NAME} test_package.c)
+target_link_libraries(${PROJECT_NAME} ${CONAN_LIBS})

recipes/mdns/all/test_package/conanfile.py

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+import os
+
+from conans import ConanFile, CMake, tools
+
+
+class TestConan(ConanFile):
+    settings = "os", "compiler", "build_type", "arch"
+    generators = "cmake"
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if not tools.cross_building(self.settings):
+            bin_path = os.path.join("bin", "test_package")
+            bin_path = self.run(bin_path, run_environment=True)