Dmitry V. Levin
b93d52fe3d
strace is now provided under the terms of the GNU Lesser General Public License version 2.1 or later, see COPYING for more details. strace test suite is now provided under the terms of the GNU General Public License version 2 or later, see tests/COPYING for more details.
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/*
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* Copyright (c) 1993 Ulrich Pegelow <pegelow@moorea.uni-muenster.de>
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* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
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* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
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* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
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* Copyright (c) 2003-2006 Roland McGrath <roland@redhat.com>
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* Copyright (c) 2006-2015 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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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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#include "defs.h"
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#include DEF_MPERS_TYPE(msqid_ds_t)
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#include "ipc_defs.h"
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#ifdef HAVE_SYS_MSG_H
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/* The C library generally exports the struct the current kernel expects. */
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# include <sys/msg.h>
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typedef struct msqid_ds msqid_ds_t;
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#elif defined HAVE_LINUX_MSG_H
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/* The linux header might provide the right struct. */
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# include <linux/msg.h>
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typedef struct msqid64_ds msqid_ds_t;
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#endif
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#include MPERS_DEFS
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#include "xlat/msgctl_flags.h"
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static void
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print_msqid_ds(struct tcb *const tcp, const kernel_ulong_t addr, int cmd)
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{
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/* TODO: We don't properly decode old compat ipc calls. */
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if (cmd & IPC_64)
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cmd &= ~IPC_64;
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msqid_ds_t msqid_ds;
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switch (cmd) {
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case IPC_SET:
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case IPC_STAT:
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if (umove_or_printaddr(tcp, addr, &msqid_ds))
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return;
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tprints("{msg_perm={");
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printuid("uid=", msqid_ds.msg_perm.uid);
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printuid(", gid=", msqid_ds.msg_perm.gid);
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tprints(", mode=");
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print_numeric_umode_t(msqid_ds.msg_perm.mode);
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if (cmd != IPC_STAT) {
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tprints("}, ...}");
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break;
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}
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tprintf(", key=%u", (unsigned) msqid_ds.msg_perm.__key);
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printuid(", cuid=", msqid_ds.msg_perm.cuid);
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printuid(", cgid=", msqid_ds.msg_perm.cgid);
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tprints("}");
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tprintf(", msg_stime=%u", (unsigned) msqid_ds.msg_stime);
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tprintf(", msg_rtime=%u", (unsigned) msqid_ds.msg_rtime);
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tprintf(", msg_ctime=%u", (unsigned) msqid_ds.msg_ctime);
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tprintf(", msg_qnum=%u", (unsigned) msqid_ds.msg_qnum);
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tprintf(", msg_qbytes=%u", (unsigned) msqid_ds.msg_qbytes);
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tprintf(", msg_lspid=%u", (unsigned) msqid_ds.msg_lspid);
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tprintf(", msg_lrpid=%u", (unsigned) msqid_ds.msg_lrpid);
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tprints("}");
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break;
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default:
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printaddr(addr);
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break;
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}
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}
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SYS_FUNC(msgctl)
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{
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if (entering(tcp)) {
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tprintf("%d, ", (int) tcp->u_arg[0]);
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PRINTCTL(msgctl_flags, tcp->u_arg[1], "MSG_???");
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tprints(", ");
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} else {
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const kernel_ulong_t addr = tcp->u_arg[indirect_ipccall(tcp) ? 3 : 2];
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print_msqid_ds(tcp, addr, tcp->u_arg[1]);
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}
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return 0;
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}
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