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93 lines
3.2 KiB
93 lines
3.2 KiB
/* |
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* Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org> |
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* Copyright (c) 2015-2017 The strace developers. |
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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 "defs.h" |
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#include DEF_MPERS_TYPE(struct_flock) |
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#include DEF_MPERS_TYPE(struct_flock64) |
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#include "flock.h" |
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typedef struct_kernel_flock struct_flock; |
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typedef struct_kernel_flock64 struct_flock64; |
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#include MPERS_DEFS |
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#define SIZEOF_MEMBER(type, member) \ |
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sizeof(((type *) NULL)->member) |
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#define FLOCK_MEMBERS_EQ(type, member) \ |
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(SIZEOF_MEMBER(struct_kernel_flock64, member) == SIZEOF_MEMBER(type, member) \ |
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&& offsetof(struct_kernel_flock64, member) == offsetof(type, member)) |
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#define FLOCK_STRUCTS_EQ(type) \ |
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(sizeof(struct_kernel_flock64) == sizeof(type) \ |
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&& FLOCK_MEMBERS_EQ(type, l_type) \ |
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&& FLOCK_MEMBERS_EQ(type, l_whence) \ |
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&& FLOCK_MEMBERS_EQ(type, l_start) \ |
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&& FLOCK_MEMBERS_EQ(type, l_len) \ |
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&& FLOCK_MEMBERS_EQ(type, l_pid)) |
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MPERS_PRINTER_DECL(bool, fetch_struct_flock, struct tcb *const tcp, |
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const kernel_ulong_t addr, void *const p) |
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{ |
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struct_kernel_flock64 *pfl = p; |
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struct_flock mfl; |
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if (FLOCK_STRUCTS_EQ(struct_flock)) |
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return !umove_or_printaddr(tcp, addr, pfl); |
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if (umove_or_printaddr(tcp, addr, &mfl)) |
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return false; |
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pfl->l_type = mfl.l_type; |
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pfl->l_whence = mfl.l_whence; |
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pfl->l_start = mfl.l_start; |
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pfl->l_len = mfl.l_len; |
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pfl->l_pid = mfl.l_pid; |
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return true; |
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} |
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MPERS_PRINTER_DECL(bool, fetch_struct_flock64, struct tcb *const tcp, |
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const kernel_ulong_t addr, void *const p) |
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{ |
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struct_kernel_flock64 *pfl = p; |
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struct_flock64 mfl; |
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if (FLOCK_STRUCTS_EQ(struct_flock64)) |
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return !umove_or_printaddr(tcp, addr, pfl); |
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if (umove_or_printaddr(tcp, addr, &mfl)) |
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return false; |
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pfl->l_type = mfl.l_type; |
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pfl->l_whence = mfl.l_whence; |
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pfl->l_start = mfl.l_start; |
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pfl->l_len = mfl.l_len; |
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pfl->l_pid = mfl.l_pid; |
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return true; |
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}
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