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#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>
#include "config.h"
#include "torture.h"
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <poll.h>
static int setup_echo_srv_tcp_ipv4(void **state)
{
torture_setup_echo_srv_tcp_ipv4(state);
return 0;
}
#ifdef HAVE_IPV6
static int setup_echo_srv_tcp_ipv6(void **state)
{
torture_setup_echo_srv_tcp_ipv6(state);
return 0;
}
#endif
static int teardown(void **state)
{
torture_teardown_echo_srv(state);
return 0;
}
static void handle_poll_loop(size_t size, int s)
{
char send_buf[size];
char recv_buf[size];
int nfds, num_open_fds;
struct pollfd pfds[1];
size_t nread = 0, nwrote = 0;
ssize_t ret;
int i;
num_open_fds = nfds = 1;
pfds[0].fd = s;
pfds[0].events = POLLIN | POLLOUT;
i = 0;
memset(send_buf, 0, sizeof(send_buf));
while (num_open_fds > 0 && i < 10) {
int ready;
printf("About to poll()\n");
ready = poll(pfds, nfds, -1);
assert_int_not_equal(ready, -1);
printf("Ready: %d\n", ready);
/* Deal with array returned by poll(). */
for (int j = 0; j < nfds; j++) {
if (pfds[j].revents != 0) {
printf(" fd=%d; events: %s%s%s%s\n", pfds[j].fd,
(pfds[j].revents & POLLIN) ? "POLLIN " : "",
(pfds[j].revents & POLLOUT) ? "POLLOUT " : "",
(pfds[j].revents & POLLHUP) ? "POLLHUP " : "",
(pfds[j].revents & POLLERR) ? "POLLERR " : "");
}
if (pfds[j].revents & POLLIN) {
ret = read(s,
recv_buf + nread,
sizeof(recv_buf) - nread);
printf(" fd=%d: read=%zd\n", pfds[j].fd, ret);
assert_int_not_equal(ret, -1);
nread += ret;
/* try to delay */
sleep(1);
}
if (pfds[j].revents & POLLOUT) {
snprintf(send_buf, sizeof(send_buf),
"packet.%d", i);
ret = write(s,
send_buf + nwrote,
sizeof(send_buf) - nwrote);
printf(" fd=%d: wrote=%zd\n", pfds[j].fd, ret);
assert_int_not_equal(ret, -1);
nwrote += ret;
if (nwrote == sizeof(send_buf)) {
/* no more to write */
pfds[j].events &= ~POLLOUT;
}
}
if (pfds[j].revents & (POLLERR | POLLHUP)) {
printf(" closing fd %d\n", pfds[j].fd);
close(pfds[j].fd);
num_open_fds--;
}
/* verify the data */
if (nwrote == sizeof(send_buf) && nread == nwrote) {
assert_memory_equal(send_buf, recv_buf,
sizeof(send_buf));
i++;
nwrote = 0;
nread = 0;
/* new packet to write */
pfds[j].events |= POLLOUT;
printf("== Next packet %d\n", i);
}
}
}
printf("All file descriptors closed; bye\n");
}
static void test_write_read_ipv4_size(void **state, size_t size)
{
struct torture_address addr = {
.sa_socklen = sizeof(struct sockaddr_in),
};
int rc;
int s;
(void) state; /* unused */
s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
assert_int_not_equal(s, -1);
addr.sa.in.sin_family = AF_INET;
addr.sa.in.sin_port = htons(torture_server_port());
rc = inet_pton(addr.sa.in.sin_family,
torture_server_address(AF_INET),
&addr.sa.in.sin_addr);
assert_int_equal(rc, 1);
rc = connect(s, &addr.sa.s, addr.sa_socklen);
assert_int_equal(rc, 0);
/* closes the socket too */
handle_poll_loop(size, s);
}
static void test_write_read_ipv4(void **state)
{
test_write_read_ipv4_size(state, 64);
}
static void test_write_read_ipv4_large(void **state)
{
test_write_read_ipv4_size(state, 2000);
}
#ifdef HAVE_IPV6
static void test_write_read_ipv6_size(void **state, size_t size)
{
struct torture_address addr = {
.sa_socklen = sizeof(struct sockaddr_in6),
};
int rc;
int s;
(void) state; /* unused */
s = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
assert_int_not_equal(s, -1);
addr.sa.in6.sin6_family = AF_INET6;
addr.sa.in6.sin6_port = htons(torture_server_port());
rc = inet_pton(AF_INET6,
torture_server_address(AF_INET6),
&addr.sa.in6.sin6_addr);
assert_int_equal(rc, 1);
rc = connect(s, &addr.sa.s, addr.sa_socklen);
assert_int_equal(rc, 0);
/* closes the socket too */
handle_poll_loop(size, s);
}
static void test_write_read_ipv6(void **state)
{
test_write_read_ipv6_size(state, 64);
}
static void test_write_read_ipv6_large(void **state)
{
test_write_read_ipv6_size(state, 2000);
}
#endif
int main(void) {
int rc;
const struct CMUnitTest tcp_write_tests[] = {
cmocka_unit_test_setup_teardown(test_write_read_ipv4,
setup_echo_srv_tcp_ipv4,
teardown),
cmocka_unit_test_setup_teardown(test_write_read_ipv4_large,
setup_echo_srv_tcp_ipv4,
teardown),
#ifdef HAVE_IPV6
cmocka_unit_test_setup_teardown(test_write_read_ipv6,
setup_echo_srv_tcp_ipv6,
teardown),
cmocka_unit_test_setup_teardown(test_write_read_ipv6_large,
setup_echo_srv_tcp_ipv6,
teardown),
#endif
};
rc = cmocka_run_group_tests(tcp_write_tests, NULL, NULL);
return rc;
}
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