mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
2db2f40a98
This change gets GNU grep working. What caused it to not work, is it wouldn't write to an output file descriptor when its dev/ino equaled /dev/null's. So now we invent special dev/ino values for these files
291 lines
10 KiB
C
291 lines
10 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net 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/calls/calls.h"
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#include "libc/cosmo.h"
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#include "libc/dce.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/mem/gc.h"
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#include "libc/mem/gc.internal.h"
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#include "libc/paths.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/consts/sig.h"
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#include "libc/testlib/ezbench.h"
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#include "libc/testlib/testlib.h"
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#include "libc/x/x.h"
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#ifdef __x86_64__
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#define GETEXITSTATUS(x) \
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({ \
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int status_ = (x); \
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if (WIFSIGNALED(status_)) { \
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kprintf("%s:%d: %s terminated with %G\n", __FILE__, __LINE__, #x, \
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WTERMSIG(status_)); \
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exit(1); \
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} \
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WEXITSTATUS(status_); \
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})
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__static_yoink("_tr");
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__static_yoink("glob");
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int pipefd[2];
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int stdoutBack;
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void SetUpOnce(void) {
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testlib_enable_tmp_setup_teardown();
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}
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void CaptureStdout(void) {
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ASSERT_NE(-1, (stdoutBack = dup(1)));
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ASSERT_SYS(0, 0, pipe(pipefd));
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ASSERT_NE(-1, dup2(pipefd[1], 1));
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}
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void RestoreStdout(void) {
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ASSERT_SYS(0, 1, dup2(stdoutBack, 1));
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ASSERT_SYS(0, 0, close(stdoutBack));
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ASSERT_SYS(0, 0, close(pipefd[1]));
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ASSERT_SYS(0, 0, close(pipefd[0]));
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}
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TEST(system, haveShell) {
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ASSERT_TRUE(system(0));
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}
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TEST(system, echo) {
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ASSERT_EQ(0, system("echo hello >\"hello there.txt\""));
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EXPECT_STREQ("hello\n", _gc(xslurp("hello there.txt", 0)));
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}
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TEST(system, exit) {
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ASSERT_EQ(123, GETEXITSTATUS(system("exit 123")));
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}
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TEST(system, testStdoutRedirect) {
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testlib_extract("/zip/echo.com", "echo.com", 0755);
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ASSERT_EQ(0, system("./echo.com hello >hello.txt"));
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EXPECT_STREQ("hello\n", _gc(xslurp("hello.txt", 0)));
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}
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TEST(system, testStdoutRedirect_withSpacesInFilename) {
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testlib_extract("/zip/echo.com", "echo.com", 0755);
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ASSERT_EQ(0, system("./echo.com hello >\"hello there.txt\""));
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EXPECT_STREQ("hello\n", _gc(xslurp("hello there.txt", 0)));
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}
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TEST(system, testStderrRedirect_toStdout) {
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CaptureStdout();
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int stderrBack = dup(2);
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ASSERT_NE(-1, stderrBack);
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char buf[5] = {0};
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ASSERT_NE(-1, dup2(1, 2));
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bool success = false;
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if (GETEXITSTATUS(system("echo aaa 2>&1")) == 0) {
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success = read(pipefd[0], buf, 4) == (4);
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}
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ASSERT_NE(-1, dup2(stderrBack, 2));
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ASSERT_EQ(true, success);
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ASSERT_STREQ("aaa\n", buf);
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buf[0] = 0;
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buf[1] = 0;
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buf[2] = 0;
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buf[3] = 0;
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testlib_extract("/zip/echo.com", "echo.com", 0755);
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ASSERT_NE(-1, dup2(1, 2));
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success = false;
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if (GETEXITSTATUS(system("./echo.com aaa 2>&1")) == 0) {
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success = read(pipefd[0], buf, 4) == (4);
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}
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ASSERT_NE(-1, dup2(stderrBack, 2));
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ASSERT_EQ(true, success);
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ASSERT_STREQ("aaa\n", buf);
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RestoreStdout();
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}
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TEST(system, and) {
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ASSERT_EQ(1, GETEXITSTATUS(system("false && false")));
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ASSERT_EQ(1, GETEXITSTATUS(system("true&& false")));
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ASSERT_EQ(1, GETEXITSTATUS(system("false &&true")));
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ASSERT_EQ(0, GETEXITSTATUS(system("true&&true")));
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}
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TEST(system, or) {
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ASSERT_EQ(1, GETEXITSTATUS(system("false || false")));
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ASSERT_EQ(0, GETEXITSTATUS(system("true|| false")));
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ASSERT_EQ(0, GETEXITSTATUS(system("false ||true")));
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ASSERT_EQ(0, GETEXITSTATUS(system("true||true")));
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}
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TEST(system, async1) {
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ASSERT_EQ(123, GETEXITSTATUS(system("exit 123 & "
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"wait $!")));
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}
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TEST(system, async4) {
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ASSERT_EQ(0, GETEXITSTATUS(system("echo a >a & "
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"echo b >b & "
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"echo c >c & "
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"echo d >d & "
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"wait")));
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ASSERT_TRUE(fileexists("a"));
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ASSERT_TRUE(fileexists("b"));
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ASSERT_TRUE(fileexists("c"));
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ASSERT_TRUE(fileexists("d"));
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}
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TEST(system, equals) {
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setenv("var", "wand", true);
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ASSERT_EQ(0, GETEXITSTATUS(system("test a = a")));
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ASSERT_EQ(1, GETEXITSTATUS(system("test a = b")));
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ASSERT_EQ(0, GETEXITSTATUS(system("test x$var = xwand")));
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ASSERT_EQ(0, GETEXITSTATUS(system("[ a = a ]")));
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ASSERT_EQ(1, GETEXITSTATUS(system("[ a = b ]")));
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}
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TEST(system, notequals) {
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ASSERT_EQ(1, GETEXITSTATUS(system("test a != a")));
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ASSERT_EQ(0, GETEXITSTATUS(system("test a != b")));
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}
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TEST(system, usleep) {
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ASSERT_EQ(0, GETEXITSTATUS(system("usleep & kill $!")));
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}
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TEST(system, kill) {
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int ws = system("kill -TERM $$; usleep");
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if (!IsWindows()) ASSERT_EQ(SIGTERM, WTERMSIG(ws));
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}
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TEST(system, exitStatusPreservedAfterSemiColon) {
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testlib_extract("/zip/false.com", "false.com", 0755);
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ASSERT_EQ(1, GETEXITSTATUS(system("false;")));
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ASSERT_EQ(1, GETEXITSTATUS(system("false; ")));
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ASSERT_EQ(1, GETEXITSTATUS(system("./false.com;")));
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ASSERT_EQ(1, GETEXITSTATUS(system("./false.com;")));
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CaptureStdout();
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ASSERT_EQ(0, GETEXITSTATUS(system("false; echo $?")));
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char buf[9] = {0};
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ASSERT_EQ(2, read(pipefd[0], buf, 8));
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ASSERT_STREQ("1\n", buf);
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ASSERT_EQ(0, GETEXITSTATUS(system("./false.com; echo $?")));
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ASSERT_EQ(2, read(pipefd[0], buf, 8));
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ASSERT_STREQ("1\n", buf);
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ASSERT_EQ(0, GETEXITSTATUS(system("echo -n hi")));
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EXPECT_EQ(2, read(pipefd[0], buf, 8));
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ASSERT_STREQ("hi", buf);
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RestoreStdout();
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}
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TEST(system, devStdout) {
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CaptureStdout();
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ASSERT_EQ(0, GETEXITSTATUS(system("echo sup >/dev/stdout")));
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char buf[16] = {0};
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ASSERT_EQ(4, read(pipefd[0], buf, 16));
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ASSERT_STREQ("sup\n", buf);
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RestoreStdout();
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}
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TEST(system, globio) {
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char buf[9] = {0};
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CaptureStdout();
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ASSERT_SYS(0, 0, touch("a", 0644));
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ASSERT_SYS(0, 0, touch("b", 0644));
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ASSERT_EQ(0, GETEXITSTATUS(system("echo *")));
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EXPECT_EQ(4, read(pipefd[0], buf, 8));
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ASSERT_STREQ("a b\n", buf);
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RestoreStdout();
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}
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TEST(system, allowsLoneCloseCurlyBrace) {
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CaptureStdout();
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char buf[6] = {0};
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ASSERT_EQ(0, GETEXITSTATUS(system("echo \"aaa\"}")));
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ASSERT_EQ(5, read(pipefd[0], buf, 5));
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ASSERT_STREQ("aaa}\n", buf);
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bzero(buf, 6);
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testlib_extract("/zip/echo.com", "echo.com", 0755);
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ASSERT_EQ(0, GETEXITSTATUS(system("./echo.com \"aaa\"}")));
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ASSERT_EQ(5, read(pipefd[0], buf, 5));
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ASSERT_STREQ("aaa}\n", buf);
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RestoreStdout();
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}
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TEST(system, glob) {
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testlib_extract("/zip/echo.com", "echo.com", 0755);
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ASSERT_EQ(0, system("./ec*.com aaa"));
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ASSERT_EQ(0, system("./ec?o.com aaa"));
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}
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TEST(system, env) {
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ASSERT_EQ(0, GETEXITSTATUS(system("env - a=b c=d >res")));
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ASSERT_STREQ("a=b\nc=d\n", gc(xslurp("res", 0)));
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ASSERT_EQ(0, GETEXITSTATUS(system("env -i -0 a=b c=d >res")));
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ASSERT_STREQN("a=b\0c=d\0", gc(xslurp("res", 0)), 8);
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ASSERT_EQ(0, GETEXITSTATUS(system("env -i0 a=b c=d >res")));
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ASSERT_STREQN("a=b\0c=d\0", gc(xslurp("res", 0)), 8);
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ASSERT_EQ(0, GETEXITSTATUS(system("env - a=b c=d -u a z=g >res")));
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ASSERT_STREQ("c=d\nz=g\n", gc(xslurp("res", 0)));
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ASSERT_EQ(0, GETEXITSTATUS(system("env - a=b c=d -ua z=g >res")));
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ASSERT_STREQ("c=d\nz=g\n", gc(xslurp("res", 0)));
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ASSERT_EQ(0, GETEXITSTATUS(system("env - dope='show' >res")));
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ASSERT_STREQ("dope=show\n", gc(xslurp("res", 0)));
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}
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TEST(system, pipelineCanOutputToFile) {
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ASSERT_EQ(0, GETEXITSTATUS(system("echo hello | tr a-z A-Z >res")));
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ASSERT_STREQ("HELLO\n", gc(xslurp("res", 0)));
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testlib_extract("/zip/echo.com", "echo.com", 0755);
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ASSERT_EQ(0, GETEXITSTATUS(system("./echo.com hello | tr a-z A-Z >res")));
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ASSERT_STREQ("HELLO\n", gc(xslurp("res", 0)));
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}
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TEST(system, pipelineCanOutputBackToSelf) {
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char buf[16] = {0};
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CaptureStdout();
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ASSERT_EQ(0, GETEXITSTATUS(system("echo hello | tr a-z A-Z")));
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ASSERT_SYS(0, 6, read(pipefd[0], buf, 16));
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ASSERT_STREQ("HELLO\n", buf);
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ASSERT_EQ(0, GETEXITSTATUS(system("echo hello | exec tr a-z A-Z")));
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ASSERT_SYS(0, 6, read(pipefd[0], buf, 16));
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ASSERT_STREQ("HELLO\n", buf);
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testlib_extract("/zip/echo.com", "echo.com", 0755);
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ASSERT_EQ(0, GETEXITSTATUS(system("./echo.com hello | tr a-z A-Z")));
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ASSERT_SYS(0, 6, read(pipefd[0], buf, 16));
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ASSERT_STREQ("HELLO\n", buf);
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ASSERT_EQ(0, GETEXITSTATUS(system("./echo.com hello | exec tr a-z A-Z")));
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ASSERT_SYS(0, 6, read(pipefd[0], buf, 16));
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ASSERT_STREQ("HELLO\n", buf);
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RestoreStdout();
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}
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int system2(const char *);
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BENCH(system, bench) {
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testlib_extract("/zip/echo.com", "echo.com", 0755);
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EZBENCH2("system cmd", donothing, system("./echo.com hi >/dev/null"));
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EZBENCH2("systemvpe cmd", donothing,
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systemvpe("./echo.com", (char *[]){"./echo.com", "hi", 0}, 0));
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EZBENCH2("cocmd echo", donothing, system("echo hi >/dev/null"));
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EZBENCH2("cocmd exit", donothing, system("exit"));
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}
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#endif /* __x86_64__ */
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