QA:Testcase c ares

{{QA/Test_Case |description=c-ares is a C library for asynchronous DNS requests (including name resolves).This test case ensures the proper installation and basic functionality of the c-ares library for asynchronous DNS requests. |setup=

1. Install the development package for c-ares: sudo dnf install c-ares-devel.
2. Prepare a basic C code to test the functionality using c-ares.

|actions=

1. Write a simple C program to use the c-ares library for DNS resolution.

 The program should:
 - Initialize the library.
 - Make a DNS request to resolve a known domain (e.g., "www.google.com").
 - Print the results.
 - Cleanup.

1. Here's a simple program [[
2. Compile the program: gcc -o test_cares test_cares.c -lcares.
3. Run the program: ./test_cares.

|results=

1. The C program should compile without any errors.
2. Running the program should display the resolved IP addresses for the specified domain.
3. The program should exit gracefully after printing the results.

|optional=For advanced testing:

1. Test the program with multiple domains.
2. Test DNS resolution for various record types (e.g., MX, TXT).
3. Examine the behavior of the program when given invalid or non-existent domain names.
4. Check the behavior with different DNS server configurations.

}}