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Greatly expand system() shell code features

Browse source 
The cosmopolitan command interpreter now has 13 builtin commands,
variable support, support for ; / && / || syntax, asynchronous support,
and plenty of unit tests with bug fixes.

This change fixes a bug in posix_spawn() with null envp arg. strace
logging now uses atomic writes for scatter functions. Breaking change
renaming GetCpuCount() to _getcpucount(). TurfWar is now updated to use
the new token bucket algorithm. WIN32 affinity masks now inherit across
fork() and execve().
This commit is contained in:
Justine Tunney 2022-10-11 21:06:27 -07:00
parent e7329b7cba
commit b41f91c658
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
80 changed files with 1370 additions and 344 deletions
Download patch file Download diff file Expand all files Collapse all files

3
test/libc/calls/mkdir_test.c
View file

@ -21,9 +21,10 @@
#include "libc/errno.h"
#include "libc/fmt/fmt.h"
#include "libc/log/check.h"
#include "libc/mem/mem.h"
#include "libc/mem/gc.internal.h"
#include "libc/mem/mem.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/o.h"
#include "libc/testlib/testlib.h"

49
test/libc/calls/sched_getaffinity_test.c
View file

@ -19,9 +19,12 @@
#include "libc/calls/calls.h"
#include "libc/calls/struct/cpuset.h"
#include "libc/dce.h"
#include "libc/fmt/conv.h"
#include "libc/intrin/popcnt.h"
#include "libc/intrin/safemacros.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/runtime/sysconf.h"
#include "libc/stdio/spawn.h"
#include "libc/testlib/subprocess.h"
#include "libc/testlib/testlib.h"
#include "libc/thread/thread.h"
#include "libc/thread/thread2.h"
@ -44,7 +47,7 @@ TEST(sched_getaffinity, firstOnly) {
}
TEST(sched_getaffinity, secondOnly) {
if (GetCpuCount() < 2) return;
if (_getcpucount() < 2) return;
cpu_set_t x, y;
CPU_ZERO(&x);
CPU_SET(1, &x);
@ -55,6 +58,48 @@ TEST(sched_getaffinity, secondOnly) {
EXPECT_TRUE(CPU_ISSET(1, &y));
}
TEST(sched_setaffinity, isInheritedAcrossFork) {
cpu_set_t x, y;
CPU_ZERO(&x);
CPU_SET(0, &x);
ASSERT_SYS(0, 0, sched_setaffinity(0, sizeof(x), &x));
SPAWN(fork);
ASSERT_SYS(0, 0, sched_getaffinity(0, sizeof(y), &y));
EXPECT_EQ(1, CPU_COUNT(&y));
EXPECT_TRUE(CPU_ISSET(0, &y));
EXPECT_FALSE(CPU_ISSET(1, &y));
EXITS(0);
}
__attribute__((__constructor__)) static void init(void) {
cpu_set_t y;
switch (atoi(nulltoempty(getenv("THE_DOGE")))) {
case 42:
ASSERT_SYS(0, 0, sched_getaffinity(0, sizeof(y), &y));
EXPECT_EQ(1, CPU_COUNT(&y));
EXPECT_TRUE(CPU_ISSET(0, &y));
EXPECT_FALSE(CPU_ISSET(1, &y));
exit(42);
default:
break;
}
}
TEST(sched_setaffinity, isInheritedAcrossExecve) {
cpu_set_t x, y;
CPU_ZERO(&x);
CPU_SET(0, &x);
ASSERT_SYS(0, 0, sched_setaffinity(0, sizeof(x), &x));
int rc, ws, pid;
char *prog = GetProgramExecutableName();
char *args[] = {program_invocation_name, NULL};
char *envs[] = {"THE_DOGE=42", NULL};
EXPECT_EQ(0, posix_spawn(&pid, prog, NULL, NULL, args, envs));
EXPECT_NE(-1, waitpid(pid, &ws, 0));
EXPECT_TRUE(WIFEXITED(ws));
EXPECT_EQ(42, WEXITSTATUS(ws));
}
TEST(sched_getaffinity, getpid) {
cpu_set_t x, y;
CPU_ZERO(&x);

3
test/libc/calls/stat_test.c
View file

@ -22,9 +22,10 @@
#include "libc/calls/struct/stat.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/nt/files.h"
#include "libc/mem/gc.internal.h"
#include "libc/nt/files.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/consts/nr.h"

14
test/libc/fmt/atoi_test.c
View file

@ -558,6 +558,20 @@ TEST(strtoul, testoverflow) {
ASSERT_STREQ("", e);
}
TEST(strtol, invalidHex_consistentWithBsd) {
char *c = 0;
long x = strtol("0xz", &c, 16);
ASSERT_EQ(0, x);
ASSERT_STREQ("z", c);
}
TEST(strtol, invalidHex_consistentWithBsd2) {
char *c = 0;
long x = strtol("0xez", &c, 16);
ASSERT_EQ(0xe, x);
ASSERT_STREQ("z", c);
}
BENCH(atoi, bench) {
EZBENCH2("atoi 10⁸", donothing, EXPROPRIATE(atoi(VEIL("r", "100000000"))));
EZBENCH2("strtol 10⁸", donothing,

2
test/libc/mem/malloc_test.c
View file

@ -162,7 +162,7 @@ void *Worker(void *arg) {
}
BENCH(malloc, torture) {
int i, n = GetCpuCount() * 2;
int i, n = _getcpucount() * 2;
pthread_t *t = _gc(malloc(sizeof(pthread_t) * n));
if (!n) return;
printf("\nmalloc torture test w/ %d threads and %d iterations\n", n,

56
test/libc/runtime/daemon_test.c Normal file
View file

@ -0,0 +1,56 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net 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/calls/calls.h"
#include "libc/calls/struct/sigset.h"
#include "libc/dce.h"
#include "libc/intrin/kprintf.h"
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/o.h"
#include "libc/testlib/subprocess.h"
#include "libc/testlib/testlib.h"
#include "libc/time/time.h"
#include "libc/x/x.h"
char testlib_enable_tmp_setup_teardown;
TEST(daemon, test) {
int dirfd;
char buf[512];
SPAWN(fork);
ASSERT_SYS(0, 3, open(".", O_RDONLY | O_DIRECTORY));
ASSERT_SYS(0, 0, daemon(false, false));
ASSERT_SYS(0, 4, openat(3, "ok", O_WRONLY | O_CREAT | O_TRUNC, 0644));
ASSERT_NE(NULL, getcwd(buf, sizeof(buf)));
ASSERT_SYS(0, 0, write(4, buf, strlen(buf)));
ASSERT_SYS(0, 0, close(4));
ASSERT_SYS(0, 0, close(3));
EXITS(0);
for (int i = 0; i < 13; ++i) {
bzero(buf, 512);
open("ok", O_RDONLY);
read(3, buf, 511);
close(3);
if (!strcmp(IsWindows() ? "/C/" : "/", buf)) {
return;
}
usleep(1000L << i);
}
ASSERT_TRUE(false);
}

27
test/libc/runtime/omg_test.c Normal file
View file

@ -0,0 +1,27 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net 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/calls/calls.h"
#include "libc/runtime/runtime.h"
#include "libc/testlib/subprocess.h"
#include "libc/testlib/testlib.h"
TEST(omg, test) {
SPAWN(fork);
EXITS(0);
}

8
test/libc/sock/test.mk
View file

@ -69,10 +69,16 @@ o/$(MODE)/test/libc/sock/sendrecvmsg_test.com.runs \
o/$(MODE)/test/libc/sock/nointernet_test.com.runs: \
private .PLEDGE = stdio rpath wpath cpath fattr proc inet recvfd sendfd
o/$(MODE)/test/libc/sock/socket_test.com.runs: .INTERNET = 1 # todo: ipv6 filtering
o/$(MODE)/test/libc/sock/socket_test.com.runs: \
private .INTERNET = 1 # todo: ipv6 filtering
o/$(MODE)/test/libc/sock/socket_test.com.runs: \
private .PLEDGE = stdio rpath wpath cpath fattr proc inet
o/$(MODE)/test/libc/sock/recvmsg_test.com.runs: \
private .INTERNET = 1 # need to bind to 0.0.0.0
o/$(MODE)/test/libc/sock/recvmsg_test.com.runs: \
private .PLEDGE = stdio rpath wpath cpath fattr proc inet recvfd sendfd
o/$(MODE)/test/libc/sock/shutdown_test.com.runs: \
private .PLEDGE = stdio rpath wpath cpath fattr proc inet

4
test/libc/x/makedirs_test.c → test/libc/stdio/makedirs_test.c
View file

@ -16,12 +16,12 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/mem/mem.h"
#include "libc/mem/gc.internal.h"
#include "libc/mem/mem.h"
#include "libc/stdio/stdio.h"
#include "libc/testlib/testlib.h"
#include "libc/thread/spawn.h"
#include "libc/thread/thread.h"
#include "libc/x/x.h"
#define DIR \
"a/b/c/d/e/f/g/h/i/j/k/l/m/n/o/p/q/r/s/t/u/v/w/x/y/z/A/B/C/D/E/F/G/H/I/J/K/" \

95
test/libc/stdio/popen_test.c Normal file
View file

@ -0,0 +1,95 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net 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/calls/calls.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/dce.h"
#include "libc/fmt/fmt.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/stdio.h"
#include "libc/sysv/consts/sig.h"
#include "libc/testlib/testlib.h"
FILE *f;
char buf[32];
char testlib_enable_tmp_setup_teardown;
TEST(popen, command) {
char foo[6];
testlib_extract("/zip/echo.com", "echo.com", 0755);
ASSERT_NE(NULL, (f = popen("./echo.com hello", "r")));
ASSERT_NE(NULL, fgets(foo, sizeof(foo), f));
ASSERT_STREQ("hello", foo);
ASSERT_EQ(0, pclose(f));
}
TEST(popen, semicolon) {
ASSERT_NE(NULL, (f = popen("echo hello;echo there", "r")));
ASSERT_STREQ("hello\n", fgets(buf, sizeof(buf), f));
ASSERT_STREQ("there\n", fgets(buf, sizeof(buf), f));
ASSERT_EQ(0, pclose(f));
}
TEST(popen, singleQuotes) {
setenv("there", "a b c", true);
ASSERT_NE(NULL, (f = popen("echo -l 'hello $there' yo", "r")));
ASSERT_STREQ("hello $there\n", fgets(buf, sizeof(buf), f));
ASSERT_STREQ("yo\n", fgets(buf, sizeof(buf), f));
ASSERT_EQ(0, pclose(f));
}
TEST(popen, doubleQuotes) {
setenv("hello", "a b c", true);
ASSERT_NE(NULL, (f = popen("echo -l \"$hello there\"", "r")));
ASSERT_STREQ("a b c there\n", fgets(buf, sizeof(buf), f));
ASSERT_EQ(0, pclose(f));
}
TEST(popen, quoteless) {
setenv("there", "a b c", true);
ASSERT_NE(NULL, (f = popen("echo -l hello a$there yo", "r")));
ASSERT_STREQ("hello\n", fgets(buf, sizeof(buf), f));
ASSERT_STREQ("aa b c\n", fgets(buf, sizeof(buf), f)); // mixed feelings
ASSERT_STREQ("yo\n", fgets(buf, sizeof(buf), f));
ASSERT_EQ(0, pclose(f));
}
TEST(popen, pipe) {
setenv("there", "a b c", true);
ASSERT_NE(NULL, (f = popen("echo hello | toupper", "r")));
ASSERT_STREQ("HELLO\n", fgets(buf, sizeof(buf), f));
ASSERT_EQ(0, pclose(f));
}
sig_atomic_t gotsig;
void OnSig(int sig) {
gotsig = 1;
}
TEST(popen, complicated) {
if (IsWindows()) return; // windows treats sigusr1 as terminate
char cmd[64];
signal(SIGUSR1, OnSig);
sprintf(cmd, "read a ; test \"x$a\" = xhello && kill -USR1 %d", getpid());
ASSERT_NE(NULL, (f = popen(cmd, "w")));
ASSERT_GE(fputs("hello", f), 0);
ASSERT_EQ(0, pclose(f));
ASSERT_EQ(1, gotsig);
signal(SIGUSR1, SIG_DFL);
}

33
test/libc/stdio/spawn_test.c
View file

@ -29,20 +29,18 @@
#include "libc/testlib/ezbench.h"
#include "libc/testlib/testlib.h"
void SetUpOnce(void) {
__enable_threads();
}
char testlib_enable_tmp_setup_teardown;
__attribute__((__constructor__)) static void init(void) {
if (atoi(nulltoempty(getenv("THE_DOGE"))) == 42) {
exit(42);
switch (atoi(nulltoempty(getenv("THE_DOGE")))) {
case 42:
exit(42);
default:
break;
}
}
TEST(spawn, test) {
if (atoi(nulltoempty(getenv("THE_DOGE"))) == 42) {
exit(42);
}
int rc, ws, pid;
char *prog = GetProgramExecutableName();
char *args[] = {program_invocation_name, NULL};
@ -53,6 +51,25 @@ TEST(spawn, test) {
EXPECT_EQ(42, WEXITSTATUS(ws));
}
TEST(spawn, pipe) {
char buf[10];
int p[2], pid, status;
const char *pn = "./echo.com";
posix_spawn_file_actions_t fa;
testlib_extract("/zip/echo.com", "echo.com", 0755);
ASSERT_SYS(0, 0, pipe(p));
ASSERT_EQ(0, posix_spawn_file_actions_init(&fa));
ASSERT_EQ(0, posix_spawn_file_actions_addclose(&fa, p[0]));
ASSERT_EQ(0, posix_spawn_file_actions_adddup2(&fa, p[1], 1));
ASSERT_EQ(0, posix_spawn_file_actions_addclose(&fa, p[1]));
ASSERT_EQ(0, posix_spawnp(&pid, pn, &fa, 0, (char *[]){pn, "hello", 0}, 0));
ASSERT_SYS(0, 0, close(p[1]));
ASSERT_SYS(0, pid, waitpid(pid, &status, 0));
ASSERT_SYS(0, 6, read(p[0], buf, sizeof(buf)));
ASSERT_SYS(0, 0, close(p[0]));
ASSERT_EQ(0, posix_spawn_file_actions_destroy(&fa));
}
/*
* BEST LINUX FORK+EXEC+EXIT+WAIT PERFORMANCE
* The fastest it can go with fork() is 40µs

76
test/libc/stdio/system_test.c
View file

@ -29,27 +29,79 @@
char testlib_enable_tmp_setup_teardown;
TEST(system, testStdoutRedirect) {
int ws;
testlib_extract("/zip/echo.com", "echo.com", 0755);
TEST(system, haveShell) {
ASSERT_TRUE(system(0));
ws = system("./echo.com hello >hello.txt");
ASSERT_TRUE(WIFEXITED(ws));
ASSERT_EQ(0, WEXITSTATUS(ws));
}
TEST(system, echo) {
ASSERT_EQ(0, system("echo hello >\"hello there.txt\""));
EXPECT_STREQ("hello\n", _gc(xslurp("hello there.txt", 0)));
}
TEST(system, exit) {
ASSERT_EQ(123, WEXITSTATUS(system("exit 123")));
}
TEST(system, testStdoutRedirect) {
testlib_extract("/zip/echo.com", "echo.com", 0755);
ASSERT_EQ(0, system("./echo.com hello >hello.txt"));
EXPECT_STREQ("hello\n", _gc(xslurp("hello.txt", 0)));
}
TEST(system, testStdoutRedirect_withSpacesInFilename) {
int ws;
testlib_extract("/zip/echo.com", "echo.com", 0755);
ASSERT_TRUE(system(0));
ws = system("./echo.com hello >\"hello there.txt\"");
ASSERT_TRUE(WIFEXITED(ws));
ASSERT_EQ(0, WEXITSTATUS(ws));
ASSERT_EQ(0, system("./echo.com hello >\"hello there.txt\""));
EXPECT_STREQ("hello\n", _gc(xslurp("hello there.txt", 0)));
}
BENCH(system, bench) {
testlib_extract("/zip/echo.com", "echo.com", 0755);
EZBENCH2("system", donothing, system("./echo.com hi >/dev/null"));
EZBENCH2("system cmd", donothing, system("./echo.com hi >/dev/null"));
EZBENCH2("cocmd echo", donothing, system("echo hi >/dev/null"));
EZBENCH2("cocmd exit", donothing, system("exit"));
}
TEST(system, and) {
ASSERT_EQ(1, WEXITSTATUS(system("false && false")));
ASSERT_EQ(1, WEXITSTATUS(system("true&& false")));
ASSERT_EQ(1, WEXITSTATUS(system("false &&true")));
ASSERT_EQ(0, WEXITSTATUS(system("true&&true")));
}
TEST(system, or) {
ASSERT_EQ(1, WEXITSTATUS(system("false || false")));
ASSERT_EQ(0, WEXITSTATUS(system("true|| false")));
ASSERT_EQ(0, WEXITSTATUS(system("false ||true")));
ASSERT_EQ(0, WEXITSTATUS(system("true||true")));
}
TEST(system, async1) {
ASSERT_EQ(123, WEXITSTATUS(system("exit 123 & "
"wait $!")));
}
TEST(system, async4) {
ASSERT_EQ(0, WEXITSTATUS(system("echo a >a & "
"echo b >b & "
"echo c >c & "
"echo d >d & "
"wait")));
ASSERT_TRUE(fileexists("a"));
ASSERT_TRUE(fileexists("b"));
ASSERT_TRUE(fileexists("c"));
ASSERT_TRUE(fileexists("d"));
}
TEST(system, equals) {
setenv("var", "wand", true);
ASSERT_EQ(0, WEXITSTATUS(system("test a = a")));
ASSERT_EQ(1, WEXITSTATUS(system("test a = b")));
ASSERT_EQ(0, WEXITSTATUS(system("test x$var = xwand")));
ASSERT_EQ(0, WEXITSTATUS(system("[ a = a ]")));
ASSERT_EQ(1, WEXITSTATUS(system("[ a = b ]")));
}
TEST(system, notequals) {
ASSERT_EQ(1, WEXITSTATUS(system("test a != a")));
ASSERT_EQ(0, WEXITSTATUS(system("test a != b")));
}

20
test/libc/stdio/test.mk
View file

@ -74,6 +74,26 @@ o/$(MODE)/test/libc/stdio/system_test.com.dbg: \
$(APE_NO_MODIFY_SELF)
@$(APELINK)
o/$(MODE)/test/libc/stdio/popen_test.com.dbg: \
$(TEST_LIBC_STDIO_DEPS) \
o/$(MODE)/test/libc/stdio/popen_test.o \
o/$(MODE)/test/libc/stdio/stdio.pkg \
o/$(MODE)/tool/build/echo.com.zip.o \
$(LIBC_TESTMAIN) \
$(CRT) \
$(APE_NO_MODIFY_SELF)
@$(APELINK)
o/$(MODE)/test/libc/stdio/spawn_test.com.dbg: \
$(TEST_LIBC_STDIO_DEPS) \
o/$(MODE)/test/libc/stdio/spawn_test.o \
o/$(MODE)/test/libc/stdio/stdio.pkg \
o/$(MODE)/tool/build/echo.com.zip.o \
$(LIBC_TESTMAIN) \
$(CRT) \
$(APE_NO_MODIFY_SELF)
@$(APELINK)
$(TEST_LIBC_STDIO_OBJS): private \
DEFAULT_CCFLAGS += \
-fno-builtin