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#include <ccan/net/net.h>
#include <ccan/tap/tap.h>
#include <sys/time.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <stdio.h>
#include <err.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
static int ipv6_only;
#ifdef IPV6_V6ONLY
static int my_setsockopt(int sockfd, int level, int optname,
const void *optval, socklen_t optlen)
{
int ret;
setsockopt(sockfd, IPPROTO_IPV6, IPV6_V6ONLY, &ipv6_only,
sizeof(ipv6_only));
ret = setsockopt(sockfd, level, optname, optval, optlen);
return ret;
}
#define setsockopt my_setsockopt
#endif
#include <ccan/net/net.c>
#define TEST_PORT "65001"
static void do_connect(int family, int type)
{
int fd, ret;
struct addrinfo *addr;
char buf[8];
/* Just in case... */
alarm(5);
addr = net_client_lookup(NULL, TEST_PORT, family, type);
fd = net_connect(addr);
if (fd < 0)
err(1, "Failed net_connect");
freeaddrinfo(addr);
ret = write(fd, "Yay!", strlen("Yay!"));
if (ret != strlen("Yay!"))
err(1, "Write returned %i", ret);
ret = read(fd, buf, sizeof(buf));
if (ret != 5)
err(1, "Read returned %i", ret);
if (memcmp(buf, "metoo", ret) != 0)
err(1, "Read returned '%.*s'", ret, buf);
close(fd);
}
static int wait_for_readable(int fds[2], int num_fds)
{
int i, max_fd = -1;
fd_set set;
FD_ZERO(&set);
for (i = 0; i < num_fds; i++) {
if (fds[i] > max_fd)
max_fd = fds[i];
FD_SET(fds[i], &set);
}
select(max_fd+1, &set, NULL, NULL, NULL);
for (i = 0; i < num_fds; i++) {
if (FD_ISSET(fds[i], &set))
return i;
}
return num_fds+1;
}
int main(void)
{
struct addrinfo *addr;
int fds[2], num_fds, i, fd, status, ret;
char buf[20];
union {
struct sockaddr addr;
struct sockaddr_in ipv4;
struct sockaddr_in6 ipv6;
} remote_addr;
socklen_t addlen = sizeof(remote_addr);
plan_tests(35);
/* Simple TCP test. */
addr = net_server_lookup(TEST_PORT, AF_UNSPEC, SOCK_STREAM);
ok1(addr);
num_fds = net_bind(addr, fds);
ok1(num_fds == 1 || num_fds == 2);
if (!fork()) {
for (i = 0; i < num_fds; i++)
close(fds[i]);
do_connect(AF_UNSPEC, SOCK_STREAM);
exit(0);
}
i = wait_for_readable(fds, num_fds);
ok1(i < num_fds);
fd = accept(fds[i], NULL, NULL);
ok1(fd >= 0);
ret = read(fd, buf, strlen("Yay!"));
ok1(ret == strlen("Yay!"));
ok1(memcmp(buf, "Yay!", ret) == 0);
ret = write(fd, "metoo", strlen("metoo"));
ok1(ret == strlen("metoo"));
ok1(wait(&status) != -1);
ok1(WIFEXITED(status));
ok1(WEXITSTATUS(status) == 0);
close(fd);
for (i = 0; i < num_fds; i++)
close(fds[i]);
freeaddrinfo(addr);
/* Simple UDP test. */
addr = net_server_lookup(TEST_PORT, AF_UNSPEC, SOCK_DGRAM);
ok1(addr);
num_fds = net_bind(addr, fds);
ok1(num_fds == 1 || num_fds == 2);
if (!fork()) {
for (i = 0; i < num_fds; i++)
close(fds[i]);
do_connect(AF_UNSPEC, SOCK_DGRAM);
exit(0);
}
i = wait_for_readable(fds, num_fds);
ok1(i < num_fds);
fd = fds[i];
ret = recvfrom(fd, buf, strlen("Yay!"), 0,
(void *)&remote_addr, &addlen);
ok1(ret == strlen("Yay!"));
ok1(memcmp(buf, "Yay!", ret) == 0);
ret = sendto(fd, "metoo", strlen("metoo"), 0,
(void *)&remote_addr, addlen);
ok1(ret == strlen("metoo"));
ok1(wait(&status) >= 0);
ok1(WIFEXITED(status));
ok1(WEXITSTATUS(status) == 0);
close(fd);
for (i = 0; i < num_fds; i++)
close(fds[i]);
/* This seems like a Linux-only extension */
#ifdef IPV6_V6ONLY
/* Try to force separate sockets for IPv4/IPv6, if we can. */
if (addr->ai_next)
ipv6_only = true;
#endif
freeaddrinfo(addr);
if (ipv6_only) {
int j;
addr = net_server_lookup(TEST_PORT, AF_UNSPEC, SOCK_STREAM);
ok1(addr);
num_fds = net_bind(addr, fds);
ok1(num_fds == 2);
freeaddrinfo(addr);
if (!fork()) {
for (i = 0; i < num_fds; i++)
close(fds[i]);
do_connect(AF_INET, SOCK_STREAM);
do_connect(AF_INET6, SOCK_STREAM);
exit(0);
}
i = wait_for_readable(fds, num_fds);
ok1(i < num_fds);
fd = accept(fds[i], NULL, NULL);
ok1(fd >= 0);
ret = read(fd, buf, strlen("Yay!"));
ok1(ret == strlen("Yay!"));
ok1(memcmp(buf, "Yay!", ret) == 0);
ret = write(fd, "metoo", strlen("metoo"));
ok1(ret == strlen("metoo"));
close(fd);
j = wait_for_readable(fds, num_fds);
ok1(j < num_fds);
ok1(j != i);
fd = accept(fds[j], NULL, NULL);
ok1(fd >= 0);
ret = read(fd, buf, strlen("Yay!"));
ok1(ret == strlen("Yay!"));
ok1(memcmp(buf, "Yay!", ret) == 0);
ret = write(fd, "metoo", strlen("metoo"));
ok1(ret == strlen("metoo"));
ok1(wait(&status) >= 0);
ok1(WIFEXITED(status));
ok1(WEXITSTATUS(status) == 0);
close(fd);
} else
skip(16, "No support for IPv6-only binding");
for (i = 0; i < num_fds; i++)
close(fds[i]);
/* This exits depending on whether all tests passed */
return exit_status();
}
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