From 3e0814cd9862b89c7a39672672937477bd87ddfb Mon Sep 17 00:00:00 2001 From: Andreas Rottmann Date: Thu, 27 May 2010 18:23:15 +0200 Subject: Imported Upstream version 0.9.3 --- tests/test-dup2.c | 121 ------------------------------------------------------ 1 file changed, 121 deletions(-) delete mode 100644 tests/test-dup2.c (limited to 'tests/test-dup2.c') diff --git a/tests/test-dup2.c b/tests/test-dup2.c deleted file mode 100644 index 2009aaa..0000000 --- a/tests/test-dup2.c +++ /dev/null @@ -1,121 +0,0 @@ -/* Test duplicating file descriptors. - Copyright (C) 2009 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 of the License, 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 . */ - -/* Written by Eric Blake , 2009. */ - -#include - -#include - -#include -#include -#include -#include - -#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ -/* Get declarations of the Win32 API functions. */ -# define WIN32_LEAN_AND_MEAN -# include -#endif - -#define ASSERT(expr) \ - do \ - { \ - if (!(expr)) \ - { \ - fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \ - fflush (stderr); \ - abort (); \ - } \ - } \ - while (0) - -/* Return non-zero if FD is open. */ -static int -is_open (int fd) -{ -#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ - /* On Win32, 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 () -{ - const char *file = "test-dup2.tmp"; - char buffer[1]; - int fd = open (file, O_CREAT | O_RDWR, 0600); - - /* Assume std descriptors were provided by invoker. */ - ASSERT (STDERR_FILENO < fd); - ASSERT (is_open (fd)); - /* Ignore any other fd's leaked into this process. */ - close (fd + 1); - close (fd + 2); - ASSERT (!is_open (fd + 1)); - ASSERT (!is_open (fd + 2)); - - /* Assigning to self must be a no-op. */ - ASSERT (dup2 (fd, fd) == fd); - ASSERT (is_open (fd)); - - /* If the source is not open, then the destination is unaffected. */ - errno = 0; - ASSERT (dup2 (fd + 1, fd + 1) == -1); - ASSERT (errno == EBADF); - ASSERT (!is_open (fd + 1)); - errno = 0; - ASSERT (dup2 (fd + 1, fd) == -1); - ASSERT (errno == EBADF); - ASSERT (is_open (fd)); - - /* The destination must be valid. */ - errno = 0; - ASSERT (dup2 (fd, -2) == -1); - ASSERT (errno == EBADF); - - /* Using dup2 can skip fds. */ - ASSERT (dup2 (fd, fd + 2) == fd + 2); - ASSERT (is_open (fd)); - ASSERT (!is_open (fd + 1)); - ASSERT (is_open (fd + 2)); - - /* Prove that dup2 closes the previous occupant of a fd. */ - ASSERT (open ("/dev/null", O_WRONLY, 0600) == fd + 1); - ASSERT (dup2 (fd + 1, fd) == fd); - ASSERT (close (fd + 1) == 0); - ASSERT (write (fd, "1", 1) == 1); - ASSERT (dup2 (fd + 2, fd) == fd); - ASSERT (write (fd + 2, "2", 1) == 1); - ASSERT (lseek (fd, SEEK_SET, 0) == 0); - ASSERT (read (fd, buffer, 1) == 1); - ASSERT (*buffer == '2'); - - /* Clean up. */ - ASSERT (close (fd + 2) == 0); - ASSERT (close (fd) == 0); - ASSERT (unlink (file) == 0); - - return 0; -} -- cgit v1.2.3