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#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include "endpoint.h"
static int getFamily(const MunitParameter params[])
{
const char *family = NULL;
if (params != NULL) {
family = munit_parameters_get(params, TEST_ENDPOINT_FAMILY);
}
if (family == NULL) {
family = "unix";
}
if (strcmp(family, "tcp") == 0) {
return AF_INET;
} else if (strcmp(family, "unix") == 0) {
return AF_UNIX;
}
munit_errorf("unexpected socket family: %s", family);
return -1;
}
void test_endpoint_setup(struct test_endpoint *e, const MunitParameter params[])
{
struct sockaddr *address;
socklen_t size;
int rv;
e->family = getFamily(params);
/* Initialize the appropriate socket address structure, depending on the
* selected socket family. */
switch (e->family) {
case AF_INET:
/* TCP socket on loopback device */
memset(&e->in_address, 0, sizeof e->in_address);
e->in_address.sin_family = AF_INET;
e->in_address.sin_addr.s_addr = inet_addr("127.0.0.1");
e->in_address.sin_port = 0; /* Get a random free port */
address = (struct sockaddr *)(&e->in_address);
size = sizeof e->in_address;
break;
case AF_UNIX:
/* Abstract Unix socket */
memset(&e->un_address, 0, sizeof e->un_address);
e->un_address.sun_family = AF_UNIX;
strcpy(e->un_address.sun_path, ""); /* Random address */
address = (struct sockaddr *)(&e->un_address);
size = sizeof e->un_address;
break;
default:
munit_errorf("unexpected socket family: %d", e->family);
}
/* Create the listener fd. */
e->fd = socket(e->family, SOCK_STREAM, 0);
if (e->fd < 0) {
munit_errorf("socket(): %s", strerror(errno));
}
/* Bind the listener fd. */
rv = bind(e->fd, address, size);
if (rv != 0) {
munit_errorf("bind(): %s", strerror(errno));
}
/* Get the actual addressed assigned by the kernel and save it back in
* the relevant struct server field (pointed to by address). */
rv = getsockname(e->fd, address, &size);
if (rv != 0) {
munit_errorf("getsockname(): %s", strerror(errno));
}
/* Render the endpoint address. */
switch (e->family) {
case AF_INET:
sprintf(e->address, "127.0.0.1:%d",
htons(e->in_address.sin_port));
break;
case AF_UNIX:
/* TODO */
break;
}
}
void test_endpoint_tear_down(struct test_endpoint *e)
{
close(e->fd);
}
int test_endpoint_connect(struct test_endpoint *e)
{
struct sockaddr *address;
socklen_t size;
int fd;
int rv;
switch (e->family) {
case AF_INET:
address = (struct sockaddr *)&e->in_address;
size = sizeof e->in_address;
break;
case AF_UNIX:
address = (struct sockaddr *)&e->un_address;
size = sizeof e->un_address;
break;
}
/* Create the socket. */
fd = socket(e->family, SOCK_STREAM, 0);
if (fd < 0) {
munit_errorf("socket(): %s", strerror(errno));
}
/* Connect to the server */
rv = connect(fd, address, size);
if (rv != 0 && errno != ECONNREFUSED) {
munit_errorf("connect(): %s", strerror(errno));
}
return fd;
}
int test_endpoint_accept(struct test_endpoint *e)
{
struct sockaddr_in in_address;
struct sockaddr_un un_address;
struct sockaddr *address;
socklen_t size;
int fd;
int rv;
switch (e->family) {
case AF_INET:
address = (struct sockaddr *)&in_address;
size = sizeof in_address;
break;
case AF_UNIX:
address = (struct sockaddr *)&un_address;
size = sizeof un_address;
break;
}
/* Accept the client connection. */
fd = accept(e->fd, address, &size);
if (fd < 0) {
/* Check if the endpoint has been closed, so this is benign. */
if (errno == EBADF || errno == EINVAL || errno == ENOTSOCK) {
return -1;
}
munit_errorf("accept(): %s", strerror(errno));
}
/* Set non-blocking mode */
rv = fcntl(fd, F_SETFL, O_NONBLOCK);
if (rv != 0) {
munit_errorf("set non-blocking mode: %s", strerror(errno));
}
return fd;
}
void test_endpoint_pair(struct test_endpoint *e, int *server, int *client)
{
*client = test_endpoint_connect(e);
*server = test_endpoint_accept(e);
}
const char *test_endpoint_address(struct test_endpoint *e)
{
return e->address;
}
char *test_endpoint_family_values[] = {"tcp", "unix", NULL};
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