59 lines
2.3 KiB
C
59 lines
2.3 KiB
C
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/*
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* Check decoding of getresuid/getresgid/getresuid32/getresgid32 syscalls.
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*
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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 <assert.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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unsigned UGID_TYPE *const r = tail_alloc(sizeof(*r));
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unsigned UGID_TYPE *const e = tail_alloc(sizeof(*e));
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unsigned UGID_TYPE *const s = tail_alloc(sizeof(*s));
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if (syscall(SYSCALL_NR, r, e, s))
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perror_msg_and_fail(SYSCALL_NAME);
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printf("%s([%u], [%u], [%u]) = 0\n", SYSCALL_NAME,
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(unsigned) *r, (unsigned) *e, (unsigned) *s);
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assert(syscall(SYSCALL_NR, NULL, e, s) == -1);
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printf("%s(NULL, %p, %p) = -1 EFAULT (%m)\n", SYSCALL_NAME, e, s);
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assert(syscall(SYSCALL_NR, r, NULL, s) == -1);
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printf("%s(%p, NULL, %p) = -1 EFAULT (%m)\n", SYSCALL_NAME, r, s);
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assert(syscall(SYSCALL_NR, r, e, NULL) == -1);
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printf("%s(%p, %p, NULL) = -1 EFAULT (%m)\n", SYSCALL_NAME, r, e);
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puts("+++ exited with 0 +++");
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return 0;
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}
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