Dmitry V. Levin
9db0797b22
* tests/llseek.c: New file. * tests/lseek.c: Likewise. * tests/llseek.test: New test. * tests/lseek.test: Likewise. * tests/Makefile.am (check_PROGRAMS): Add llseek and lseek. (TESTS): Add llseek.test and lseek.test. * tests/.gitignore: Add llseek and lseek.
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/*
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* Copyright (c) 2015 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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <sys/syscall.h>
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#ifdef __NR__llseek
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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int
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main(void)
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{
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const unsigned long high = 0xdefaced;
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const unsigned long low = 0xdeadbeef;
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const unsigned long long offset = 0xdefaceddeadbeef;
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unsigned long long result;
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int rc = syscall(__NR__llseek, -1, high, low, &result, SEEK_SET);
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if (rc != -1 || EBADF != errno)
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return 77;
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printf("_llseek(-1, %Lu, %p, SEEK_SET) = -1 EBADF (Bad file descriptor)\n",
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offset, &result);
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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int
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main(void)
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{
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return 77;
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}
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#endif
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