cosmopolitan/test/libc/sock/unix_test.c
Jōshin e16a7d8f3b
flip et / noet in modelines
`et` means `expandtab`.

```sh
rg 'vi: .* :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\)  :vi/vi: \1 xoet\2:vi/'
rg 'vi: .*  :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2  :vi/'
rg 'vi: .*  :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/'
```
2023-12-07 22:17:11 -05:00

176 lines
7.3 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/atomic.h"
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/timeval.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/nexgen32e/vendor.internal.h"
#include "libc/nt/version.h"
#include "libc/runtime/internal.h"
#include "libc/runtime/runtime.h"
#include "libc/sock/sock.h"
#include "libc/sock/struct/sockaddr.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/af.h"
#include "libc/sysv/consts/so.h"
#include "libc/sysv/consts/sock.h"
#include "libc/sysv/consts/sol.h"
#include "libc/testlib/subprocess.h"
#include "libc/testlib/testlib.h"
#include "libc/time/time.h"
void SetUpOnce(void) {
testlib_enable_tmp_setup_teardown();
ASSERT_SYS(0, 0, pledge("stdio rpath cpath proc unix", 0));
}
TEST(unix, datagram) {
if (IsWindows()) return; // no unix datagram on windows :'(
atomic_bool *ready = _mapshared(1);
SPAWN(fork);
char buf[256] = {0};
uint32_t len = sizeof(struct sockaddr_un);
struct sockaddr_un addr = {AF_UNIX, "foo.sock"};
ASSERT_SYS(0, 3, socket(AF_UNIX, SOCK_DGRAM, 0));
ASSERT_SYS(0, 0, bind(3, (void *)&addr, len));
*ready = true;
bzero(&addr, sizeof(addr));
ASSERT_SYS(0, 0, getsockname(3, (void *)&addr, &len));
ASSERT_EQ(11, len);
ASSERT_STREQ("foo.sock", addr.sun_path);
ASSERT_SYS(0, 5, read(3, buf, 256));
EXPECT_STREQ("hello", buf);
ASSERT_SYS(0, 0, close(3));
PARENT();
while (!*ready) sched_yield();
ASSERT_SYS(0, 3, socket(AF_UNIX, SOCK_DGRAM, 0));
uint32_t len = sizeof(struct sockaddr_un);
struct sockaddr_un addr = {AF_UNIX, "foo.sock"};
ASSERT_SYS(0, 5, sendto(3, "hello", 5, 0, (struct sockaddr *)&addr, len));
ASSERT_SYS(0, 0, close(3));
WAIT(exit, 0);
munmap(ready, 1);
}
void StreamServer(atomic_bool *ready) {
char buf[256] = {0};
uint32_t len = sizeof(struct sockaddr_un);
struct sockaddr_un addr = {AF_UNIX, "foo.sock"};
ASSERT_SYS(0, 3, socket(AF_UNIX, SOCK_STREAM, 0));
ASSERT_SYS(0, 0, bind(3, (void *)&addr, len));
bzero(&addr, sizeof(addr));
ASSERT_SYS(0, 0, getsockname(3, (void *)&addr, &len));
ASSERT_EQ(2 + 8 + 1, len);
ASSERT_EQ(AF_UNIX, addr.sun_family);
ASSERT_STREQ("foo.sock", addr.sun_path);
ASSERT_SYS(0, 0, listen(3, 10));
bzero(&addr, sizeof(addr));
len = sizeof(addr);
*ready = true;
ASSERT_SYS(0, 4, accept(3, (struct sockaddr *)&addr, &len));
ASSERT_EQ(AF_UNIX, addr.sun_family);
EXPECT_STREQ("", addr.sun_path);
ASSERT_SYS(0, 5, read(4, buf, 256));
EXPECT_STREQ("hello", buf);
ASSERT_SYS(0, 0, close(3));
}
TEST(unix, stream) {
int ws;
if (IsWindows() && !IsAtLeastWindows10()) return;
atomic_bool *ready = _mapshared(1);
// TODO(jart): move this line down when kFdProcess is gone
ASSERT_SYS(0, 3, socket(AF_UNIX, SOCK_STREAM, 0));
if (!fork()) {
close(3);
StreamServer(ready);
_Exit(0);
}
while (!*ready) sched_yield();
uint32_t len = sizeof(struct sockaddr_un);
struct sockaddr_un addr = {AF_UNIX, "foo.sock"};
ASSERT_SYS(0, 0, connect(3, (void *)&addr, len));
ASSERT_SYS(0, 5, write(3, "hello", 5));
ASSERT_SYS(0, 0, close(3));
ASSERT_NE(-1, wait(&ws));
EXPECT_TRUE(WIFEXITED(ws));
EXPECT_EQ(0, WEXITSTATUS(ws));
munmap(ready, 1);
}
TEST(unix, serverGoesDown_deletedSockFile) { // field of landmine
if (IsWindows()) return;
if (IsCygwin()) return;
char buf[8] = {0};
uint32_t len = sizeof(struct sockaddr_un);
struct sockaddr_un addr = {AF_UNIX, "foo.sock"};
ASSERT_SYS(0, 3, socket(AF_UNIX, SOCK_DGRAM, 0));
ASSERT_SYS(0, 0, bind(3, (void *)&addr, len));
ASSERT_SYS(0, 4, socket(AF_UNIX, SOCK_DGRAM, 0));
ASSERT_SYS(0, 0, connect(4, (void *)&addr, len));
ASSERT_SYS(0, 5, write(4, "hello", 5));
ASSERT_SYS(0, 5, read(3, buf, 8));
ASSERT_SYS(0, 0, close(3));
ASSERT_EQ(-1, write(4, "hello", 5));
ASSERT_TRUE(errno == ECONNREFUSED || // Linux
errno == ECONNRESET); // BSDs
errno = 0;
ASSERT_SYS(0, 0, unlink(addr.sun_path));
ASSERT_SYS(0, 3, socket(AF_UNIX, SOCK_DGRAM, 0));
ASSERT_SYS(0, 0, bind(3, (void *)&addr, len));
int rc = write(4, "hello", 5);
ASSERT_TRUE(rc == -1 && (errno == ECONNRESET || //
errno == ENOTCONN || //
errno == ECONNREFUSED || //
errno == EDESTADDRREQ));
errno = 0;
ASSERT_SYS(0, 0, close(4));
ASSERT_SYS(0, 4, socket(AF_UNIX, SOCK_DGRAM, 0));
ASSERT_SYS(0, 0, connect(4, (void *)&addr, len));
ASSERT_SYS(0, 5, write(4, "hello", 5));
ASSERT_SYS(0, 5, read(3, buf, 8));
ASSERT_SYS(0, 0, close(4));
ASSERT_SYS(0, 0, close(3));
}
TEST(unix, serverGoesDown_usingSendTo_unlink) { // much easier
if (IsWindows()) return;
if (IsCygwin()) return;
char buf[8] = {0};
uint32_t len = sizeof(struct sockaddr_un);
struct sockaddr_un addr = {AF_UNIX, "foo.sock"};
ASSERT_SYS(0, 3, socket(AF_UNIX, SOCK_DGRAM, 0));
ASSERT_SYS(0, 0, bind(3, (void *)&addr, len));
ASSERT_SYS(0, 4, socket(AF_UNIX, SOCK_DGRAM, 0));
ASSERT_SYS(0, 5, sendto(4, "hello", 5, 0, (void *)&addr, len));
ASSERT_SYS(0, 5, read(3, buf, 8));
ASSERT_SYS(0, 0, close(3));
ASSERT_SYS(__iswsl1() ? ENOTCONN : ECONNREFUSED, -1,
sendto(4, "hello", 5, 0, (void *)&addr, len));
ASSERT_SYS(0, 0, unlink(addr.sun_path));
ASSERT_SYS(ENOENT, -1, sendto(4, "hello", 5, 0, (void *)&addr, len));
ASSERT_SYS(0, 3, socket(AF_UNIX, SOCK_DGRAM, 0));
ASSERT_SYS(0, 0, bind(3, (void *)&addr, len));
ASSERT_SYS(0, 5, sendto(4, "hello", 5, 0, (void *)&addr, len));
ASSERT_SYS(0, 5, read(3, buf, 8));
ASSERT_SYS(0, 0, close(4));
ASSERT_SYS(0, 0, close(3));
}