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/*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdlib.h>
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <sys/un.h>
#include <unistd.h>
#include "wayland-client.h"
#include "wayland-server.h"
#include "test-runner.h"
/* Paths longer than what the .sun_path array can contain must be rejected.
* This is a hard limitation of assigning a name to AF_UNIX/AF_LOCAL sockets.
* See `man 7 unix`.
*/
static const struct sockaddr_un example_sockaddr_un;
#define TOO_LONG (1 + sizeof example_sockaddr_un.sun_path)
/* Ensure the connection doesn't fail due to lack of XDG_RUNTIME_DIR. */
static const char *
require_xdg_runtime_dir(void)
{
char *val = getenv("XDG_RUNTIME_DIR");
assert(val && "set $XDG_RUNTIME_DIR to run this test");
return val;
}
TEST(socket_path_overflow_client_connect)
{
char path[TOO_LONG];
struct wl_display *d;
require_xdg_runtime_dir();
memset(path, 'a', sizeof path);
path[sizeof path - 1] = '\0';
d = wl_display_connect(path);
assert(d == NULL);
assert(errno == ENAMETOOLONG);
}
TEST(socket_path_overflow_server_create)
{
char path[TOO_LONG];
struct wl_display *d;
int ret;
require_xdg_runtime_dir();
memset(path, 'a', sizeof path);
path[sizeof path - 1] = '\0';
d = wl_display_create();
assert(d != NULL);
ret = wl_display_add_socket(d, path);
assert(ret < 0);
assert(errno == ENAMETOOLONG);
wl_display_destroy(d);
}
TEST(add_existing_socket)
{
char path[sizeof example_sockaddr_un.sun_path];
const char *name = "wayland-test-0";
const char *xdg_runtime_dir;
struct wl_display *d;
int ret;
size_t len;
xdg_runtime_dir = require_xdg_runtime_dir();
d = wl_display_create();
assert(d != NULL);
/* this one should be OK */
ret = wl_display_add_socket(d, name);
assert(ret == 0);
/* this one should fail */
ret = wl_display_add_socket(d, name);
assert(ret < 0);
/* the original socket should still exist.
* this was a bug introduced in e2c0d47b0c77f18cd90e9c6eabb358c4d89681c8 */
len = snprintf(path, sizeof example_sockaddr_un.sun_path, "%s/%s",
xdg_runtime_dir, name);
assert(len < sizeof example_sockaddr_un.sun_path
&& "Bug in test. Path too long");
assert(access(path, F_OK) != -1);
/* the original socket should still exist */
ret = wl_display_add_socket(d, name);
assert(ret < 0);
wl_display_destroy(d);
}
TEST(add_socket_auto)
{
/* the number of auto sockets is currently 32,
* set in wayland-server.c.
*/
const int MAX_SOCKETS = 32;
char path[sizeof example_sockaddr_un.sun_path];
const char *name;
const char *xdg_runtime_dir;
struct wl_display *d;
int i;
size_t len;
xdg_runtime_dir = require_xdg_runtime_dir();
d = wl_display_create();
assert(d != NULL);
for (i = 0; i <= MAX_SOCKETS; ++i) {
name = wl_display_add_socket_auto(d);
assert(name != NULL);
len = snprintf(path, sizeof example_sockaddr_un.sun_path,
"%s/%s", xdg_runtime_dir, name);
assert(len < sizeof example_sockaddr_un.sun_path
&& "Bug in test. Path too long");
/* was the socket created correctly? */
assert(access(path, F_OK) != -1);
/* is the name sequential? */
len = snprintf(path, sizeof example_sockaddr_un.sun_path,
"wayland-%d", i);
assert(strcmp(name, path) == 0);
}
/* next addition should return NULL */
name = wl_display_add_socket_auto(d);
assert(name == NULL);
/* check if the socket was not deleted the last time */
name = wl_display_add_socket_auto(d);
assert(name == NULL);
wl_display_destroy(d);
}
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