1 /*
2 * Copyright (c) 1993 Ulrich Pegelow <pegelow@moorea.uni-muenster.de>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
6 * Copyright (c) 2003-2006 Roland McGrath <roland@redhat.com>
7 * Copyright (c) 2006-2015 Dmitry V. Levin <ldv@altlinux.org>
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include "defs.h"
34 #include "ipc_defs.h"
35
36 #ifdef HAVE_SYS_SEM_H
37 # include <sys/sem.h>
38 #elif defined HAVE_LINUX_SEM_H
39 # include <linux/sem.h>
40 #endif
41
42 #include "xlat/semctl_flags.h"
43 #include "xlat/semop_flags.h"
44
45 #if defined HAVE_SYS_SEM_H || defined HAVE_LINUX_SEM_H
46 static void
tprint_sembuf(const struct sembuf * sb)47 tprint_sembuf(const struct sembuf *sb)
48 {
49 tprintf("{%u, %d, ", sb->sem_num, sb->sem_op);
50 printflags(semop_flags, sb->sem_flg, "SEM_???");
51 tprints("}");
52 }
53 #endif
54
55 static void
tprint_sembuf_array(struct tcb * tcp,const long addr,const unsigned long count)56 tprint_sembuf_array(struct tcb *tcp, const long addr, const unsigned long count)
57 {
58 #if defined HAVE_SYS_SEM_H || defined HAVE_LINUX_SEM_H
59 unsigned long max_count;
60 struct sembuf sb;
61
62 if (abbrev(tcp))
63 max_count = (max_strlen < count) ? max_strlen : count;
64 else
65 max_count = count;
66
67 if (!max_count)
68 printaddr(addr);
69 else if (!umove_or_printaddr(tcp, addr, &sb)) {
70 unsigned long i;
71
72 tprints("[");
73 tprint_sembuf(&sb);
74
75 for (i = 1; i < max_count; ++i) {
76 tprints(", ");
77 if (umove_or_printaddr(tcp, addr + i * sizeof(sb), &sb))
78 break;
79 else
80 tprint_sembuf(&sb);
81 }
82
83 if (i < max_count || max_count < count)
84 tprints(", ...");
85
86 tprints("]");
87 }
88 #else
89 printaddr(addr);
90 #endif
91 tprintf(", %lu", count);
92 }
93
SYS_FUNC(semop)94 SYS_FUNC(semop)
95 {
96 tprintf("%lu, ", tcp->u_arg[0]);
97 if (indirect_ipccall(tcp)) {
98 tprint_sembuf_array(tcp, tcp->u_arg[3], tcp->u_arg[1]);
99 } else {
100 tprint_sembuf_array(tcp, tcp->u_arg[1], tcp->u_arg[2]);
101 }
102 return RVAL_DECODED;
103 }
104
SYS_FUNC(semtimedop)105 SYS_FUNC(semtimedop)
106 {
107 tprintf("%lu, ", tcp->u_arg[0]);
108 if (indirect_ipccall(tcp)) {
109 tprint_sembuf_array(tcp, tcp->u_arg[3], tcp->u_arg[1]);
110 tprints(", ");
111 #if defined(S390) || defined(S390X)
112 print_timespec(tcp, tcp->u_arg[2]);
113 #else
114 print_timespec(tcp, tcp->u_arg[4]);
115 #endif
116 } else {
117 tprint_sembuf_array(tcp, tcp->u_arg[1], tcp->u_arg[2]);
118 tprints(", ");
119 print_timespec(tcp, tcp->u_arg[3]);
120 }
121 return RVAL_DECODED;
122 }
123
SYS_FUNC(semget)124 SYS_FUNC(semget)
125 {
126 if (tcp->u_arg[0])
127 tprintf("%#lx", tcp->u_arg[0]);
128 else
129 tprints("IPC_PRIVATE");
130 tprintf(", %lu, ", tcp->u_arg[1]);
131 if (printflags(resource_flags, tcp->u_arg[2] & ~0777, NULL) != 0)
132 tprints("|");
133 tprintf("%#lo", tcp->u_arg[2] & 0777);
134 return RVAL_DECODED;
135 }
136
SYS_FUNC(semctl)137 SYS_FUNC(semctl)
138 {
139 tprintf("%lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
140 PRINTCTL(semctl_flags, tcp->u_arg[2], "SEM_???");
141 tprints(", ");
142 if (indirect_ipccall(tcp)) {
143 printnum_ptr(tcp, tcp->u_arg[3]);
144 } else {
145 tprintf("%#lx", tcp->u_arg[3]);
146 }
147 return RVAL_DECODED;
148 }
149