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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 #include <sys/sem.h>
37
38 #include "xlat/semctl_flags.h"
39 #include "xlat/semop_flags.h"
40
41 static void
42 tprint_sembuf(const struct sembuf *sb)
43 {
44         tprintf("{%u, %d, ", sb->sem_num, sb->sem_op);
45         printflags(semop_flags, sb->sem_flg, "SEM_???");
46         tprints("}");
47 }
48
49 static void
50 tprint_sembuf_array(struct tcb *tcp, const long addr, const unsigned long count)
51 {
52         unsigned long max_count;
53         struct sembuf sb;
54
55         if (abbrev(tcp))
56                 max_count = (max_strlen < count) ? max_strlen : count;
57         else
58                 max_count = count;
59
60         if (!max_count)
61                 printaddr(addr);
62         else if (!umove_or_printaddr(tcp, addr, &sb)) {
63                 unsigned long i;
64
65                 tprints("[");
66                 tprint_sembuf(&sb);
67
68                 for (i = 1; i < max_count; ++i) {
69                         tprints(", ");
70                         if (umove_or_printaddr(tcp, addr + i * sizeof(sb), &sb))
71                                 break;
72                         else
73                                 tprint_sembuf(&sb);
74                 }
75
76                 if (i < max_count || max_count < count)
77                         tprints(", ...");
78
79                 tprints("]");
80         }
81         tprintf(", %lu", count);
82 }
83
84 SYS_FUNC(semop)
85 {
86         tprintf("%lu, ", tcp->u_arg[0]);
87         if (indirect_ipccall(tcp)) {
88                 tprint_sembuf_array(tcp, tcp->u_arg[3], tcp->u_arg[1]);
89         } else {
90                 tprint_sembuf_array(tcp, tcp->u_arg[1], tcp->u_arg[2]);
91         }
92         return RVAL_DECODED;
93 }
94
95 SYS_FUNC(semtimedop)
96 {
97         tprintf("%lu, ", tcp->u_arg[0]);
98         if (indirect_ipccall(tcp)) {
99                 tprint_sembuf_array(tcp, tcp->u_arg[3], tcp->u_arg[1]);
100                 tprints(", ");
101 #if defined(S390) || defined(S390X)
102                 printtv(tcp, tcp->u_arg[2]);
103 #else
104                 printtv(tcp, tcp->u_arg[4]);
105 #endif
106         } else {
107                 tprint_sembuf_array(tcp, tcp->u_arg[1], tcp->u_arg[2]);
108                 tprints(", ");
109                 printtv(tcp, tcp->u_arg[3]);
110         }
111         return RVAL_DECODED;
112 }
113
114 SYS_FUNC(semget)
115 {
116         if (tcp->u_arg[0])
117                 tprintf("%#lx", tcp->u_arg[0]);
118         else
119                 tprints("IPC_PRIVATE");
120         tprintf(", %lu, ", tcp->u_arg[1]);
121         if (printflags(resource_flags, tcp->u_arg[2] & ~0777, NULL) != 0)
122                 tprints("|");
123         tprintf("%#lo", tcp->u_arg[2] & 0777);
124         return RVAL_DECODED;
125 }
126
127 SYS_FUNC(semctl)
128 {
129         tprintf("%lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
130         PRINTCTL(semctl_flags, tcp->u_arg[2], "SEM_???");
131         tprints(", ");
132         if (indirect_ipccall(tcp)) {
133                 printnum_ptr(tcp, tcp->u_arg[3]);
134         } else {
135                 tprintf("%#lx", tcp->u_arg[3]);
136         }
137         return RVAL_DECODED;
138 }