75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
/*
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* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <assert.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#define N_FDS 3
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/*
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* Do not print any messages, indicate errors with return codes.
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*/
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static int
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check_fd(int fd, const char *fname)
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{
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const int should_be_closed = (fname[0] == '\0');
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struct stat st_fd, st_fn;
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if (fstat(fd, &st_fd)) {
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if (!should_be_closed)
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return 10 + fd;
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} else {
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if (should_be_closed)
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return 20 + fd;
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if (stat(fname, &st_fn))
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return 30 + fd;
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if (st_fd.st_dev != st_fn.st_dev
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|| st_fd.st_ino != st_fn.st_ino)
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return 40 + fd;
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}
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return 0;
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}
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int
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main(int ac, char **av)
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{
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assert(ac == 1 + N_FDS);
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int rc = 0, fd;
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for (fd = 1; fd < 1 + N_FDS; ++fd)
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if ((rc = check_fd(fd - 1, av[fd])))
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break;
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return rc;
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}
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