1 /* Child program invoked by test-execute-main.
2 Copyright (C) 2009-2021 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, see <https://www.gnu.org/licenses/>. */
17 /* If the user's config.h happens to include <sys/stat.h>, let it include only
18 the system's <sys/stat.h> here. */
19 #define __need_system_sys_stat_h
22 /* Get the original definition of fstat. It might be defined as a macro.
23 Also, 'stat' might be defined as a macro. */
24 #include <sys/types.h>
26 #undef __need_system_sys_stat_h
28 /* Return non-zero if FD is opened to a device. */
32 #if defined _WIN32 && ! defined __CYGWIN__
34 return _fstat (fd, &st) >= 0 && !((st.st_mode & S_IFMT) == S_IFREG);
37 return fstat (fd, &st) >= 0 && !S_ISREG (st.st_mode);
41 /* Now include the other header files. */
50 #if defined _WIN32 && ! defined __CYGWIN__
51 /* Get declarations of the native Windows API functions. */
52 # define WIN32_LEAN_AND_MEAN
54 /* Get _get_osfhandle, _isatty, _chdir, _getcwd. */
58 /* In this file, we use only system functions, no overrides from gnulib. */
74 #if HAVE_MSVC_INVALID_PARAMETER_HANDLER
76 gl_msvc_invalid_parameter_handler (const wchar_t *expression,
77 const wchar_t *function,
85 /* Return non-zero if FD is open. */
89 #if defined _WIN32 && ! defined __CYGWIN__
90 /* On native Windows, the initial state of unassigned standard file
91 descriptors is that they are open but point to an
92 INVALID_HANDLE_VALUE, and there is no fcntl. */
93 return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE;
96 # error Please port fcntl to your platform
98 return 0 <= fcntl (fd, F_GETFL);
103 main (int argc, char *argv[])
106 /* Check an invocation without arguments. Check the exit code. */
109 int test = atoi (argv[1]);
113 /* Check argument passing. */
115 && strcmp (argv[2], "abc def") == 0
116 && strcmp (argv[3], "abc\"def\"ghi") == 0
117 && strcmp (argv[4], "xyz\"") == 0
118 && strcmp (argv[5], "abc\\def\\ghi") == 0
119 && strcmp (argv[6], "xyz\\") == 0
120 && strcmp (argv[7], "???") == 0
121 && strcmp (argv[8], "***") == 0
122 && strcmp (argv[9], "") == 0
123 && strcmp (argv[10], "foo") == 0
124 && strcmp (argv[11], "") == 0);
125 #if !(defined _WIN32 && !defined __CYGWIN__)
127 /* Check SIGPIPE handling with ignore_sigpipe = false. */
129 /* Check SIGPIPE handling with ignore_sigpipe = true. */
134 /* Check other signal. */
138 /* Check stdin is inherited. */
139 return !(fgetc (stdin) == 'F' && fgetc (stdin) == 'o');
141 /* Check null_stdin = true. */
142 return !(fgetc (stdin) == EOF);
144 /* Check stdout is inherited, part 1 (regular file). */
145 return !(fputs ("bar", stdout) != EOF && fflush (stdout) == 0);
147 /* Check stdout is inherited, part 2 (device). */
149 /* Check null_stdout = true. */
150 return !is_device (STDOUT_FILENO);
152 /* Check stderr is inherited, part 1 (regular file). */
153 return !(fputs ("bar", stderr) != EOF && fflush (stderr) == 0);
155 /* Check stderr is inherited, part 2 (device). */
157 /* Check null_stderr = true. */
158 return !is_device (STDERR_FILENO);
161 /* Check file descriptors >= 3 can be inherited. */
163 /* Check file descriptors >= 3 with O_CLOEXEC bit are not inherited. */
164 #if HAVE_MSVC_INVALID_PARAMETER_HANDLER
165 /* Avoid exceptions from within _get_osfhandle. */
166 _set_invalid_parameter_handler (gl_msvc_invalid_parameter_handler);
173 for (fd = 0; fd < 20; fd++)
176 sprintf (p, "%d ", fd);
179 const char *expected = (test < 16 ? "0 1 2 10 " : "0 1 2 ");
180 if (strcmp (buf, expected) == 0)
184 fprintf (stderr, "Test case %d: %s\n", test, buf); fflush (stderr);
189 /* Check that file descriptors >= 3, open for reading, can be inherited,
190 including the file position. */
193 int n = read (10, buf, sizeof (buf));
194 return !(n == 4 && memcmp (buf, "obar", 4) == 0);
197 /* Check that file descriptors >= 3, open for writing, can be inherited,
198 including the file position. */
200 int n = write (10, "bar", 3);
204 /* Check that file descriptors >= 3, when inherited, preserve their
205 isatty() property, part 1 (regular file). */
207 /* Check that file descriptors >= 3, when inherited, preserve their
208 isatty() property, part 2 (character devices). */
210 #if defined _WIN32 && ! defined __CYGWIN__
211 return 4 + 2 * (_isatty (10) != 0) + (_isatty (11) != 0);
213 return 4 + 2 * (isatty (10) != 0) + (isatty (11) != 0);
217 /* Check execution in a different directory. */
220 #if defined _WIN32 && ! defined __CYGWIN__
221 if (_chdir ("..") != 0)
223 if (_getcwd (cwd, sizeof (cwd)) == NULL)
226 if (chdir ("..") != 0)
228 if (getcwd (cwd, sizeof (cwd)) == NULL)
231 return (argc == 3 && strcmp (argv[2], cwd) == 0 ? 0 : 3);