Can you try this: https://www.netbsd.org/~christos/res_kqueue.diff <https://www.netbsd.org/~christos/res_kqueue.diff> ?
christos
> On Sep 29, 2021, at 6:12 PM, Pawel S. Veselov <pawel.vese...@gmail.com> wrote:
>
> #include <netdb.h>
> #include <stdio.h>
> #include <unistd.h>
> #include <sys/wait.h>
> #include <fcntl.h>
>
> int main(int argc, char ** argv) {
>
> struct addrinfo * res;
>
> getaddrinfo("www.netbsd.org <http://www.netbsd.org/>", NULL, NULL,
> &res);
>
> pid_t pid = fork();
> if (pid < 0) {
> perror("fork");
> return 1;
> }
>
> if (!pid) {
> // child
> int fd = open("/etc/hosts", O_RDONLY);
> getaddrinfo("www.netbsd.com <http://www.netbsd.com/>", NULL,
> NULL, &res);
> char buf[101];
> int rc;
> while (1) {
> rc = read(fd, buf, 100);
> if (rc < 0) { perror("read"); }
> if (rc <= 0) { break; }
> buf[rc] = 0;
> fprintf(stdout, "%s", buf);
> }
> fprintf(stdout, "\n");
> return !rc ? 0 : 1;
> } else {
> int s;
> while (1) {
> waitpid(pid, &s, 0);
> if (!WIFEXITED(s)) {
> fprintf(stdout, "not ready\n");
> continue;
> }
> return WEXITSTATUS(s);
> break;
> }
> }
>
> }
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