cosmopolitan/test/libc/calls/dup_test.c
Justine Tunney d57b81aac7 Make improvements
- Add GetCpuCount() API to redbean
- Add unix.gmtime() API to redbean
- Add unix.readlink() API to redbean
- Add unix.localtime() API to redbean
- Perfect the new redbean UNIX module APIs
- Integrate with Linux clock_gettime() vDSO
- Run Lua garbage collector when malloc() fails
- Fix another regression quirk with linenoise repl
- Fix GetProgramExecutableName() for systemwide installs
- Fix a build flake with test/libc/mem/test.mk SRCS list
2022-04-26 16:46:15 -07:00

60 lines
2.9 KiB
C

/*-*- 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 2021 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/internal.h"
#include "libc/calls/struct/stat.h"
#include "libc/log/check.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/f.h"
#include "libc/sysv/consts/fd.h"
#include "libc/sysv/consts/o.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
char testlib_enable_tmp_setup_teardown;
static textstartup void TestInit(int argc, char **argv) {
int fd;
if (argc == 2 && !strcmp(argv[1], "boop")) {
if ((fd = open("/dev/null", O_RDWR | O_CLOEXEC)) == 3) {
_exit(72);
} else {
_exit(fd + 1);
}
}
}
const void *const TestCtor[] initarray = {TestInit};
TEST(dup, clearsCloexecFlag) {
int ws;
ASSERT_SYS(0, 0, close(creat("file", 0644)));
ASSERT_SYS(0, 3, open("file", O_RDWR | O_CLOEXEC));
ASSERT_NE(-1, (ws = xspawn(0)));
if (ws == -2) {
dup2(3, 0);
execv(GetProgramExecutableName(),
(char *const[]){GetProgramExecutableName(), "boop", 0});
_exit(127);
}
ASSERT_EQ(72, WEXITSTATUS(ws));
ASSERT_SYS(0, 0, close(3));
}