mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-08 06:10:06 +00:00
socket: Add new test for shutdown
This commit adds shutdown test with SHUT_RD, SHUT_WR, SHUT_RDWR for an UNIX socket connection. Reviewed-by: DJ Delorie <dj@redhat.com>
This commit is contained in:
parent
d2f6ceaccb
commit
50f5a09e68
@ -71,6 +71,7 @@ tests := \
|
||||
tst-cmsg_cloexec \
|
||||
tst-cmsghdr \
|
||||
tst-connect \
|
||||
tst-shutdown \
|
||||
tst-sockopt \
|
||||
# tests
|
||||
|
||||
|
257
socket/tst-shutdown.c
Normal file
257
socket/tst-shutdown.c
Normal file
@ -0,0 +1,257 @@
|
||||
/* Test the shutdown function.
|
||||
Copyright (C) 2024 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <arpa/inet.h>
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdbool.h>
|
||||
#include <support/check.h>
|
||||
#include <support/support.h>
|
||||
#include <support/xsocket.h>
|
||||
#include <support/xunistd.h>
|
||||
#include <sys/socket.h>
|
||||
#include <stdio.h>
|
||||
#include <fcntl.h>
|
||||
#include <string.h>
|
||||
|
||||
struct connection
|
||||
{
|
||||
int sockets[2];
|
||||
};
|
||||
|
||||
void
|
||||
establish_connection (struct connection *conn)
|
||||
{
|
||||
if (socketpair (AF_UNIX, SOCK_STREAM, 0, conn->sockets) != 0)
|
||||
{
|
||||
FAIL_EXIT1 ("socketpair (AF_UNIX, SOCK_STREAM, 0): %m\n");
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
close_connection (struct connection *conn)
|
||||
{
|
||||
xclose (conn->sockets[0]);
|
||||
xclose (conn->sockets[1]);
|
||||
}
|
||||
|
||||
/* Open a file and check that shutdown fails with the ENOTSOCK error code. */
|
||||
void
|
||||
do_test_enotsock (void)
|
||||
{
|
||||
/* Open file and check that shutdown will fail with ENOTSOCK. */
|
||||
int fd = xopen ("/dev/null", O_RDWR, 0);
|
||||
|
||||
int result = shutdown (fd, SHUT_RD);
|
||||
if (result == 0 || errno != ENOTSOCK)
|
||||
{
|
||||
FAIL_EXIT1 ("shutdown should fail with ENOTSOCK");
|
||||
}
|
||||
xclose (fd);
|
||||
}
|
||||
|
||||
/* Test shutdown with SHUT_RD. */
|
||||
void
|
||||
do_test_shut_rd (void)
|
||||
{
|
||||
struct connection conn;
|
||||
const char *str = "AAAAAAA";
|
||||
int len = 8;
|
||||
int ret;
|
||||
void *s_buf = xmalloc (len);
|
||||
bzero (s_buf, len);
|
||||
|
||||
establish_connection (&conn);
|
||||
int server = conn.sockets[0];
|
||||
int client = conn.sockets[1];
|
||||
|
||||
/* Call shutdown with SHUT_RD on server socket. */
|
||||
if (shutdown (server, SHUT_RD) != 0)
|
||||
{
|
||||
FAIL_EXIT1 ("shutdown with SHUT_RD on socket %d failed", server);
|
||||
}
|
||||
|
||||
ret = send (server, str, len, 0);
|
||||
if (ret <= 0)
|
||||
{
|
||||
FAIL_EXIT1 ("send (%d, data, %d): %m", server, len);
|
||||
}
|
||||
|
||||
ret = recv (client, s_buf, len, 0);
|
||||
if (ret <= 0)
|
||||
{
|
||||
FAIL_EXIT1 ("recv (%d, data, %d): %m", client, len);
|
||||
}
|
||||
|
||||
TEST_COMPARE_BLOB (str, len, s_buf, len);
|
||||
|
||||
/* Send data should be disallowed on shutdown socket. */
|
||||
errno = 0;
|
||||
ret = send (client, str, len, MSG_NOSIGNAL);
|
||||
if (ret >= 0 || errno != EPIPE)
|
||||
{
|
||||
FAIL_EXIT1 ("Send on SHUT_RD socket should be disallowed: %m");
|
||||
}
|
||||
|
||||
/* Recv should return zero and no error. */
|
||||
errno = 0;
|
||||
ret = recv (server, s_buf, len, 0);
|
||||
if (ret != 0 || errno != 0)
|
||||
{
|
||||
FAIL_EXIT1 ("recv should return 0 without error: %m");
|
||||
}
|
||||
|
||||
close_connection (&conn);
|
||||
}
|
||||
|
||||
/* Test shutdown with SHUT_WR. */
|
||||
void
|
||||
do_test_shut_wr (void)
|
||||
{
|
||||
struct connection conn;
|
||||
const char *str1 = "CCCCCCC";
|
||||
const char *str2 = "DDDDDDD";
|
||||
const char *str3 = "EEEEEEE";
|
||||
int len = 8;
|
||||
int ret;
|
||||
void *c_buf = xmalloc (len);
|
||||
void *s_buf = xmalloc (len);
|
||||
|
||||
establish_connection (&conn);
|
||||
int server = conn.sockets[0];
|
||||
int client = conn.sockets[1];
|
||||
|
||||
xwrite (client, str1, len);
|
||||
|
||||
if (shutdown (client, SHUT_WR) != 0)
|
||||
{
|
||||
FAIL_EXIT1 ("shutdown with SHUT_WR on socket %d failed", client);
|
||||
}
|
||||
|
||||
ret = send (client, str2, len, MSG_NOSIGNAL);
|
||||
if (ret >= 0)
|
||||
{
|
||||
FAIL_EXIT1 ("send on SHUT_WR socket should fail");
|
||||
}
|
||||
|
||||
/* Read data written before shutdown and check if it's correct. */
|
||||
xread (server, s_buf, len);
|
||||
TEST_COMPARE_BLOB (str1, len, s_buf, len);
|
||||
|
||||
/* Second read should return zero without error. */
|
||||
errno = 0;
|
||||
if (read (server, s_buf, len) != 0 || errno != 0)
|
||||
{
|
||||
FAIL_EXIT1 ("read after shutdown should return zero without error: %m");
|
||||
}
|
||||
|
||||
/* Write some data to socket and check it still can be read on other side. */
|
||||
memcpy (s_buf, str3, len);
|
||||
xwrite (server, s_buf, len);
|
||||
|
||||
xread (client, c_buf, len);
|
||||
TEST_COMPARE_BLOB (s_buf, len, c_buf, len);
|
||||
|
||||
close_connection (&conn);
|
||||
}
|
||||
|
||||
/* Test shutdown with SHUT_RDWR. */
|
||||
void
|
||||
do_test_shut_rdwr (void)
|
||||
{
|
||||
struct connection conn;
|
||||
struct sockaddr peer;
|
||||
socklen_t peer_len = sizeof (peer);
|
||||
|
||||
const char *str1 = "FFFFFFF";
|
||||
const char *str2 = "GGGGGGG";
|
||||
int len = 8;
|
||||
int ret;
|
||||
void *s_buf = xmalloc (len);
|
||||
bzero (s_buf, len);
|
||||
|
||||
establish_connection (&conn);
|
||||
int server = conn.sockets[0];
|
||||
int client = conn.sockets[1];
|
||||
|
||||
/* Send some data to both sockets before shutdown. */
|
||||
xwrite (client, str1, len);
|
||||
xwrite (server, str2, len);
|
||||
|
||||
/* Call shutdown with SHUT_RDWR on client socket. */
|
||||
if (shutdown (client, SHUT_RDWR) != 0)
|
||||
{
|
||||
FAIL_EXIT1 ("shutdown with SHUT_RDWR on socket %d failed", client);
|
||||
}
|
||||
|
||||
/* Verify that socket is still connected. */
|
||||
xgetsockname (client, &peer, &peer_len);
|
||||
|
||||
/* Read data written before shutdown. */
|
||||
xread (client, s_buf, len);
|
||||
TEST_COMPARE_BLOB (s_buf, len, str2, len);
|
||||
|
||||
/* Second read should return zero, but no error. */
|
||||
errno = 0;
|
||||
if (read (client, s_buf, len) != 0 || errno != 0)
|
||||
{
|
||||
FAIL_EXIT1 ("read after shutdown should return zero without error: %m");
|
||||
}
|
||||
|
||||
/* Send some data to shutdown socket and expect error. */
|
||||
errno = 0;
|
||||
ret = send (server, str2, len, MSG_NOSIGNAL);
|
||||
if (ret >= 0 || errno != EPIPE)
|
||||
{
|
||||
FAIL_EXIT1 ("send to RDWR shutdown socket should fail with EPIPE");
|
||||
}
|
||||
|
||||
/* Read data written before shutdown. */
|
||||
xread (server, s_buf, len);
|
||||
TEST_COMPARE_BLOB (s_buf, len, str1, len);
|
||||
|
||||
/* Second read should return zero, but no error. */
|
||||
errno = 0;
|
||||
if (read (server, s_buf, len) != 0 || errno != 0)
|
||||
{
|
||||
FAIL_EXIT1 ("read after shutdown should return zero without error: %m");
|
||||
}
|
||||
|
||||
/* Send some data to shutdown socket and expect error. */
|
||||
errno = 0;
|
||||
ret = send (client, str1, len, MSG_NOSIGNAL);
|
||||
if (ret >= 0 || errno != EPIPE)
|
||||
{
|
||||
FAIL_EXIT1 ("send to RDWR shutdown socket should fail with EPIPE");
|
||||
}
|
||||
|
||||
close_connection (&conn);
|
||||
}
|
||||
|
||||
static int
|
||||
do_test (void)
|
||||
{
|
||||
do_test_enotsock ();
|
||||
do_test_shut_rd ();
|
||||
do_test_shut_wr ();
|
||||
do_test_shut_rdwr ();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#include <support/test-driver.c>
|
Loading…
Reference in New Issue
Block a user