vasilito
facf0c92e0
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/* Test of create_pipe_bidi/wait_subprocess.
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Copyright (C) 2009-2024 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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#include "spawn-pipe.h"
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#include "wait-process.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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/* Depending on arguments, this test intentionally closes stderr or
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starts life with stderr closed. So, we arrange to have fd 10
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(outside the range of interesting fd's during the test) set up to
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duplicate the original stderr. */
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#define BACKUP_STDERR_FILENO 10
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#define ASSERT_STREAM myerr
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#include "macros.h"
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static FILE *myerr;
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/* Create a bi-directional pipe to a test child, and validate that the
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child program returns the expected output.
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PROG is the program to run in the child process.
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STDERR_CLOSED is true if we have already closed fd 2. */
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static void
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test_pipe (const char *prog, bool stderr_closed)
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{
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int fd[2];
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const char *argv[3];
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pid_t pid;
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char buffer[2] = { 'a', 't' };
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/* Set up child. */
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argv[0] = prog;
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argv[1] = (stderr_closed ? "1" : "0");
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argv[2] = NULL;
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pid = create_pipe_bidi (prog, prog, argv, NULL, false, true, true, fd);
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ASSERT (0 <= pid);
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ASSERT (STDERR_FILENO < fd[0]);
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ASSERT (STDERR_FILENO < fd[1]);
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/* Push child's input. */
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ASSERT (write (fd[1], buffer, 1) == 1);
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ASSERT (close (fd[1]) == 0);
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/* Get child's output. */
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ASSERT (read (fd[0], buffer, 2) == 1);
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/* Wait for child. */
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ASSERT (wait_subprocess (pid, prog, true, false, true, true, NULL) == 0);
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ASSERT (close (fd[0]) == 0);
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/* Check the result. */
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ASSERT (buffer[0] == 'b');
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ASSERT (buffer[1] == 't');
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}
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int
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main (int argc, char *argv[])
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{
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int test;
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int fd;
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if (argc != 3)
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{
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fprintf (stderr, "%s: need 2 arguments\n", argv[0]);
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return 2;
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}
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/* We might close fd 2 later, so save it in fd 10. */
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if (dup2 (STDERR_FILENO, BACKUP_STDERR_FILENO) != BACKUP_STDERR_FILENO
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|| (myerr = fdopen (BACKUP_STDERR_FILENO, "w")) == NULL)
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return 2;
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/* Selectively close various standard fds, to verify the child process is
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not impacted by this. */
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test = atoi (argv[2]);
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switch (test)
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{
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case 0:
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break;
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case 1:
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close (0);
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break;
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case 2:
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close (1);
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break;
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case 3:
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close (0);
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close (1);
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break;
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case 4:
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close (2);
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break;
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case 5:
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close (0);
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close (2);
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break;
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case 6:
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close (1);
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close (2);
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break;
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case 7:
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close (0);
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close (1);
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close (2);
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break;
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default:
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ASSERT (false);
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}
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/* Plug any file descriptor leaks inherited from outside world before
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starting, so that child has a clean slate (at least for the fds that we
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might be manipulating). */
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for (fd = 3; fd < 7; fd++)
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close (fd);
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test_pipe (argv[1], test >= 4);
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return 0;
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}
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