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/*
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
#include DEF_MPERS_TYPE(struct_mmsghdr)
#include "msghdr.h"
typedef struct mmsghdr struct_mmsghdr;
#include MPERS_DEFS
/*
* On success, return the number of fetched bytes.
* On error, return 0;
*
* This function cannot use umove_or_printaddr because
* it is called by dumpio and therefore cannot print anything.
*/
MPERS_PRINTER_DECL(int, fetch_struct_mmsghdr,
struct tcb *tcp, const unsigned long addr, void *p)
{
struct mmsghdr *p_native = p;
struct_mmsghdr v_compat;
if (sizeof(*p_native) == sizeof(v_compat))
return umove(tcp, addr, p_native) ? 0 : sizeof(*p_native);
if (umove(tcp, addr, &v_compat))
return 0;
p_native->msg_hdr.msg_name = (void *) (unsigned long)
v_compat.msg_hdr.msg_name;
p_native->msg_hdr.msg_namelen =
v_compat.msg_hdr.msg_namelen;
p_native->msg_hdr.msg_iov = (void *) (unsigned long)
v_compat.msg_hdr.msg_iov;
p_native->msg_hdr.msg_iovlen =
v_compat.msg_hdr.msg_iovlen;
p_native->msg_hdr.msg_control = (void *) (unsigned long)
v_compat.msg_hdr.msg_control;
p_native->msg_hdr.msg_controllen =
v_compat.msg_hdr.msg_controllen;
p_native->msg_hdr.msg_flags =
v_compat.msg_hdr.msg_flags;
p_native->msg_len =
v_compat.msg_len;
return sizeof(v_compat);
}
MPERS_PRINTER_DECL(unsigned int, sizeof_struct_mmsghdr, void)
{
return sizeof(struct_mmsghdr);
}
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