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/* Child program invoked by test-execute-main.
Copyright (C) 2009-2020 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#include <fcntl.h>
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#if defined _WIN32 && ! defined __CYGWIN__
/* Get declarations of the native Windows API functions. */
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
/* Get _get_osfhandle, _isatty. */
# include <io.h>
#endif
/* In this file, we use only system functions, no overrides from gnulib. */
#undef atoi
#undef fcntl
#undef fflush
#undef fgetc
#undef fprintf
#undef fputs
#undef fstat
#undef isatty
#undef raise
#undef read
#undef sprintf
#undef stat
#undef strcmp
#undef strlen
#undef write
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
static void __cdecl
gl_msvc_invalid_parameter_handler (const wchar_t *expression,
const wchar_t *function,
const wchar_t *file,
unsigned int line,
uintptr_t dummy)
{
}
#endif
/* Return non-zero if FD is open. */
static int
is_open (int fd)
{
#if defined _WIN32 && ! defined __CYGWIN__
/* On native Windows, the initial state of unassigned standard file
descriptors is that they are open but point to an
INVALID_HANDLE_VALUE, and there is no fcntl. */
return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE;
#else
# ifndef F_GETFL
# error Please port fcntl to your platform
# endif
return 0 <= fcntl (fd, F_GETFL);
#endif
}
int
main (int argc, char *argv[])
{
if (argc == 1)
/* Check an invocation without arguments. Check the exit code. */
return 40;
int test = atoi (argv[1]);
switch (test)
{
case 2:
/* Check argument passing. */
return !(argc == 12
&& strcmp (argv[2], "abc def") == 0
&& strcmp (argv[3], "abc\"def\"ghi") == 0
&& strcmp (argv[4], "xyz\"") == 0
&& strcmp (argv[5], "abc\\def\\ghi") == 0
&& strcmp (argv[6], "xyz\\") == 0
&& strcmp (argv[7], "???") == 0
&& strcmp (argv[8], "***") == 0
&& strcmp (argv[9], "") == 0
&& strcmp (argv[10], "foo") == 0
&& strcmp (argv[11], "") == 0);
#if !(defined _WIN32 && !defined __CYGWIN__)
case 3:
/* Check SIGPIPE handling with ignore_sigpipe = false. */
case 4:
/* Check SIGPIPE handling with ignore_sigpipe = true. */
raise (SIGPIPE);
return 71;
#endif
case 5:
/* Check other signal. */
raise (SIGINT);
return 71;
case 6:
/* Check stdin is inherited. */
return !(fgetc (stdin) == 'F' && fgetc (stdin) == 'o');
case 7:
/* Check null_stdin = true. */
return !(fgetc (stdin) == EOF);
case 8:
/* Check stdout is inherited, part 1 (regular file). */
return !(fputs ("bar", stdout) != EOF && fflush (stdout) == 0);
case 9:
/* Check stdout is inherited, part 2 (device). */
case 10:
/* Check null_stdout = true. */
{
struct stat st;
return !(fstat (STDOUT_FILENO, &st) >= 0 && !S_ISREG (st.st_mode));
}
case 11:
/* Check stderr is inherited, part 1 (regular file). */
return !(fputs ("bar", stderr) != EOF && fflush (stderr) == 0);
case 12:
/* Check stderr is inherited, part 2 (device). */
case 13:
/* Check null_stderr = true. */
{
struct stat st;
return !(fstat (STDERR_FILENO, &st) >= 0 && !S_ISREG (st.st_mode));
}
case 14:
case 15:
/* Check file descriptors >= 3 can be inherited. */
case 16:
/* Check file descriptors >= 3 with O_CLOEXEC bit are not inherited. */
#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
/* Avoid exceptions from within _get_osfhandle. */
_set_invalid_parameter_handler (gl_msvc_invalid_parameter_handler);
#endif
{
char buf[300];
buf[0] = '\0';
char *p = buf;
int fd;
for (fd = 0; fd < 20; fd++)
#ifdef __NetBSD__
if (fd != 3)
#endif
if (is_open (fd))
{
sprintf (p, "%d ", fd);
p += strlen (p);
}
const char *expected = (test < 16 ? "0 1 2 10 " : "0 1 2 ");
if (strcmp (buf, expected) == 0)
return 0;
else
{
fprintf (stderr, "Test case %d: %s\n", test, buf); fflush (stderr);
return 1;
}
}
case 17:
/* Check that file descriptors >= 3, open for reading, can be inherited,
including the file position. */
{
char buf[6];
int n = read (10, buf, sizeof (buf));
return !(n == 4 && memcmp (buf, "obar", 4) == 0);
}
case 18:
/* Check that file descriptors >= 3, open for writing, can be inherited,
including the file position. */
{
int n = write (10, "bar", 3);
return !(n == 3);
}
case 19:
/* Check that file descriptors >= 3, when inherited, preserve their
isatty() property, part 1 (regular file). */
case 20:
/* Check that file descriptors >= 3, when inherited, preserve their
isatty() property, part 2 (character devices). */
{
#if defined _WIN32 && ! defined __CYGWIN__
return 4 + 2 * (_isatty (10) != 0) + (_isatty (11) != 0);
#else
return 4 + 2 * (isatty (10) != 0) + (isatty (11) != 0);
#endif
}
default:
abort ();
}
}
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