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) 2015-2018 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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