80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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* Check decoding of sethostname syscall.
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*
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* Copyright (c) 2016 Fei Jie <feij.fnst@cn.fujitsu.com>
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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 <asm/unistd.h>
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#ifdef __NR_sethostname
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# include <stdio.h>
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# include <unistd.h>
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#ifdef HAVE_LINUX_UTSNAME_H
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# include <linux/utsname.h>
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#endif
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#ifndef __NEW_UTS_LEN
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# define __NEW_UTS_LEN 64
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#endif
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int
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main(void)
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{
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kernel_ulong_t len;
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long rc;
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len = __NEW_UTS_LEN;
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rc = syscall(__NR_sethostname, 0, len);
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printf("sethostname(NULL, %u) = %s\n",
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(unsigned) len, sprintrc(rc));
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if (F8ILL_KULONG_MASK) {
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len |= F8ILL_KULONG_MASK;
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rc = syscall(__NR_sethostname, 0, len);
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printf("sethostname(NULL, %u) = %s\n",
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(unsigned) len, sprintrc(rc));
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}
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len = __NEW_UTS_LEN + 1;
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void *const p = tail_alloc(len);
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rc = syscall(__NR_sethostname, p, len);
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printf("sethostname(%p, %u) = %s\n",
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p, (unsigned) len, sprintrc(rc));
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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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SKIP_MAIN_UNDEFINED("__NR_sethostname")
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#endif
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