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