#include <sys/types.h>                                                   
#include <sys/stat.h>                                                    
#include <fcntl.h>
#include <stdio.h>
#include <sys/socket.h>                                                  
#include <netdb.h>
#include <errno.h>

int main() {

    for (;;) {
        int fd = open("/dev/null", O_RDONLY);
        if (fd == -1) {
        }

        struct addrinfo *res;
        struct addrinfo hints;

        hints.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ALL;

        char *h = "example.com";
        
        int ret = getaddrinfo(h, NULL, &hints, &res);

        if (ret != 0) {
            fprintf(stderr, "getaddrinfo: %d, %d\n", ret, errno);
        } else {
            freeaddrinfo(ret);
        }
    }

    return 0;
}