5 * net - simple IPv4/IPv6 client library
7 * This code makes it simple to support IPv4 and IPv6 without speed penalty.
11 * Author: Rusty Russell <rusty@rustcorp.com.au>
14 * #include <ccan/net/net.h>
15 * #include <sys/types.h>
16 * #include <sys/socket.h>
20 * int main(int argc, char *argv[])
22 * struct addrinfo *addr;
23 * const char *dest, *port;
25 * struct sockaddr saddr;
26 * socklen_t slen = sizeof(saddr);
31 * } else if (argc == 3) {
35 * errx(1, "Usage: test-net <target> [<port>]");
37 * addr = net_client_lookup(dest, port, AF_UNSPEC, SOCK_STREAM);
39 * err(1, "Failed to look up %s", dest);
41 * fd = net_connect(addr);
43 * err(1, "Failed to connect to %s", dest);
45 * if (getsockname(fd, &saddr, &slen) == 0)
46 * printf("Connected via %s\n",
47 * saddr.sa_family == AF_INET6 ? "IPv6"
48 * : saddr.sa_family == AF_INET ? "IPv4"
51 * err(1, "Failed to get socket type for connection");
55 int main(int argc, char *argv[])
57 /* Expect exactly one argument */
61 if (strcmp(argv[1], "depends") == 0) {
62 printf("ccan/noerr\n");