mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
18bb5888e1
- Remove PAGESIZE constant - Fix realloc() documentation - Fix ttyname_r() error reporting - Make forking more reliable on Windows - Make execvp() a few microseconds faster - Make system() a few microseconds faster - Tighten up the socket-related magic numbers - Loosen restrictions on mmap() offset alignment - Improve GetProgramExecutableName() with getenv("_") - Use mkstemp() as basis for mktemp(), tmpfile(), tmpfd() - Fix flakes in pthread_cancel_test, unix_test, fork_test - Fix recently introduced futex stack overflow regression - Let sockets be passed as stdio to subprocesses on Windows - Improve security of bind() on Windows w/ SO_EXCLUSIVEADDRUSE
154 lines
5.4 KiB
C
154 lines
5.4 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/calls/struct/rusage.h"
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#include "libc/calls/syscall_support-sysv.internal.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/fmt/conv.h"
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#include "libc/fmt/itoa.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/temp.h"
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#include "libc/str/str.h"
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#include "libc/testlib/ezbench.h"
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#include "libc/testlib/subprocess.h"
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#include "libc/testlib/testlib.h"
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#ifdef __x86_64__
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#define N 16
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char *GenBuf(char buf[8], int x) {
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int i;
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bzero(buf, 8);
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for (i = 0; i < 7; ++i) {
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buf[i] = x & 127; // nt doesn't respect invalid unicode?
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x >>= 1;
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}
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return buf;
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}
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__attribute__((__constructor__)) static void init(void) {
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char buf[8];
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if (__argc == 4 && !strcmp(__argv[1], "-")) {
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ASSERT_STREQ(GenBuf(buf, atoi(__argv[2])), __argv[3]);
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exit(0);
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}
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}
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TEST(execve, testArgPassing) {
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int i;
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char ibuf[12], buf[8];
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for (i = 0; i < N; ++i) {
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FormatInt32(ibuf, i);
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GenBuf(buf, i);
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SPAWN(vfork);
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execve(GetProgramExecutableName(),
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(char *const[]){GetProgramExecutableName(), "-", ibuf, buf, 0},
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(char *const[]){0});
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kprintf("execve failed: %m\n");
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EXITS(0);
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}
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}
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TEST(execve, ziposELF) {
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if (IsFreebsd()) return; // TODO: fixme on freebsd
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if (!__is_linux_2_6_23()) return; // TODO: fixme on old linux
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if (!IsLinux() && !IsFreebsd()) {
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EXPECT_SYS(ENOSYS, -1,
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execve("/zip/life.elf", (char *const[]){0}, (char *const[]){0}));
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return;
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}
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SPAWN(fork);
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execve("/zip/life.elf", (char *const[]){0}, (char *const[]){0});
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kprintf("execve failed: %m\n");
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EXITS(42);
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}
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TEST(execve, ziposAPE) {
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if (IsFreebsd()) return; // TODO: fixme on freebsd
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if (!__is_linux_2_6_23()) return; // TODO: fixme on old linux
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if (!IsLinux() && !IsFreebsd()) {
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EXPECT_EQ(-1, execve("/zip/life-nomod.com", (char *const[]){0},
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(char *const[]){0}));
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return;
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}
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SPAWN(fork);
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execve("/zip/life-nomod.com", (char *const[]){0}, (char *const[]){0});
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kprintf("execve failed: %m\n");
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EXITS(42);
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}
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// clang-format off
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#define TINY_ELF_PROGRAM "\
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\177\105\114\106\002\001\001\000\000\000\000\000\000\000\000\000\
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\002\000\076\000\001\000\000\000\170\000\100\000\000\000\000\000\
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\100\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\
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\000\000\000\000\100\000\070\000\001\000\000\000\000\000\000\000\
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\001\000\000\000\005\000\000\000\000\000\000\000\000\000\000\000\
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\000\000\100\000\000\000\000\000\000\000\100\000\000\000\000\000\
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\200\000\000\000\000\000\000\000\200\000\000\000\000\000\000\000\
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\000\020\000\000\000\000\000\000\152\052\137\152\074\130\017\005"
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// clang-format on
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void ExecvTinyElf(const char *path) {
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int ws;
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if (!vfork()) {
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execv(path, (char *[]){path, 0});
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abort();
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}
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ASSERT_NE(-1, wait(&ws));
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ASSERT_EQ(42, WEXITSTATUS(ws));
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}
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void ExecvpTinyElf(const char *path) {
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int ws;
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if (!vfork()) {
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execvp(path, (char *[]){path, 0});
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abort();
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}
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ASSERT_NE(-1, wait(&ws));
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ASSERT_EQ(42, WEXITSTATUS(ws));
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}
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void ExecveTinyElf(const char *path) {
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int ws;
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if (!vfork()) {
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execve(path, (char *[]){path, 0}, (char *[]){0});
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abort();
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}
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ASSERT_NE(-1, wait(&ws));
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ASSERT_EQ(42, WEXITSTATUS(ws));
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}
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BENCH(execve, bench) {
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if (!IsLinux()) return;
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char path[128] = "/tmp/tinyelf.XXXXXX";
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int fd = mkstemp(path);
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fchmod(fd, 0700);
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write(fd, TINY_ELF_PROGRAM, sizeof(TINY_ELF_PROGRAM));
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close(fd);
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EZBENCH2("execv", donothing, ExecvTinyElf(path));
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EZBENCH2("execvp", donothing, ExecvpTinyElf(path));
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EZBENCH2("execve", donothing, ExecveTinyElf(path));
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unlink(path);
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}
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#endif
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