xref: /aosp_15_r20/external/strace/personality.c (revision cf84ac9a129d8ea9952db616b4e9b904c4bdde56)
1*cf84ac9aSAndroid Build Coastguard Worker /*
2*cf84ac9aSAndroid Build Coastguard Worker  * Copyright (c) 2015 Dmitry V. Levin <[email protected]>
3*cf84ac9aSAndroid Build Coastguard Worker  * Copyright (c) 2014-2018 The strace developers.
4*cf84ac9aSAndroid Build Coastguard Worker  * All rights reserved.
5*cf84ac9aSAndroid Build Coastguard Worker  *
6*cf84ac9aSAndroid Build Coastguard Worker  * Redistribution and use in source and binary forms, with or without
7*cf84ac9aSAndroid Build Coastguard Worker  * modification, are permitted provided that the following conditions
8*cf84ac9aSAndroid Build Coastguard Worker  * are met:
9*cf84ac9aSAndroid Build Coastguard Worker  * 1. Redistributions of source code must retain the above copyright
10*cf84ac9aSAndroid Build Coastguard Worker  *    notice, this list of conditions and the following disclaimer.
11*cf84ac9aSAndroid Build Coastguard Worker  * 2. Redistributions in binary form must reproduce the above copyright
12*cf84ac9aSAndroid Build Coastguard Worker  *    notice, this list of conditions and the following disclaimer in the
13*cf84ac9aSAndroid Build Coastguard Worker  *    documentation and/or other materials provided with the distribution.
14*cf84ac9aSAndroid Build Coastguard Worker  * 3. The name of the author may not be used to endorse or promote products
15*cf84ac9aSAndroid Build Coastguard Worker  *    derived from this software without specific prior written permission.
16*cf84ac9aSAndroid Build Coastguard Worker  *
17*cf84ac9aSAndroid Build Coastguard Worker  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18*cf84ac9aSAndroid Build Coastguard Worker  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19*cf84ac9aSAndroid Build Coastguard Worker  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20*cf84ac9aSAndroid Build Coastguard Worker  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21*cf84ac9aSAndroid Build Coastguard Worker  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22*cf84ac9aSAndroid Build Coastguard Worker  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23*cf84ac9aSAndroid Build Coastguard Worker  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24*cf84ac9aSAndroid Build Coastguard Worker  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25*cf84ac9aSAndroid Build Coastguard Worker  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26*cf84ac9aSAndroid Build Coastguard Worker  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27*cf84ac9aSAndroid Build Coastguard Worker  */
28*cf84ac9aSAndroid Build Coastguard Worker 
29*cf84ac9aSAndroid Build Coastguard Worker #include "defs.h"
30*cf84ac9aSAndroid Build Coastguard Worker #include "xlat/personality_flags.h"
31*cf84ac9aSAndroid Build Coastguard Worker #include "xlat/personality_types.h"
32*cf84ac9aSAndroid Build Coastguard Worker 
33*cf84ac9aSAndroid Build Coastguard Worker 
SYS_FUNC(personality)34*cf84ac9aSAndroid Build Coastguard Worker SYS_FUNC(personality)
35*cf84ac9aSAndroid Build Coastguard Worker {
36*cf84ac9aSAndroid Build Coastguard Worker 	unsigned int pers;
37*cf84ac9aSAndroid Build Coastguard Worker 
38*cf84ac9aSAndroid Build Coastguard Worker 	if (entering(tcp)) {
39*cf84ac9aSAndroid Build Coastguard Worker 		pers = tcp->u_arg[0];
40*cf84ac9aSAndroid Build Coastguard Worker 		if (0xffffffff == pers) {
41*cf84ac9aSAndroid Build Coastguard Worker 			tprints("0xffffffff");
42*cf84ac9aSAndroid Build Coastguard Worker 		} else {
43*cf84ac9aSAndroid Build Coastguard Worker 			printxval(personality_types, pers & PER_MASK, "PER_???");
44*cf84ac9aSAndroid Build Coastguard Worker 			pers &= ~PER_MASK;
45*cf84ac9aSAndroid Build Coastguard Worker 			if (pers) {
46*cf84ac9aSAndroid Build Coastguard Worker 				tprints("|");
47*cf84ac9aSAndroid Build Coastguard Worker 				printflags(personality_flags, pers, NULL);
48*cf84ac9aSAndroid Build Coastguard Worker 			}
49*cf84ac9aSAndroid Build Coastguard Worker 		}
50*cf84ac9aSAndroid Build Coastguard Worker 		return 0;
51*cf84ac9aSAndroid Build Coastguard Worker 	}
52*cf84ac9aSAndroid Build Coastguard Worker 
53*cf84ac9aSAndroid Build Coastguard Worker 	if (syserror(tcp))
54*cf84ac9aSAndroid Build Coastguard Worker 		return 0;
55*cf84ac9aSAndroid Build Coastguard Worker 
56*cf84ac9aSAndroid Build Coastguard Worker 	pers = tcp->u_rval;
57*cf84ac9aSAndroid Build Coastguard Worker 	static char outstr[1024];
58*cf84ac9aSAndroid Build Coastguard Worker 	char *p = outstr + sprintxval(outstr, sizeof(outstr), personality_types,
59*cf84ac9aSAndroid Build Coastguard Worker 				      pers & PER_MASK, "PER_???");
60*cf84ac9aSAndroid Build Coastguard Worker 	pers &= ~PER_MASK;
61*cf84ac9aSAndroid Build Coastguard Worker 	if (pers)
62*cf84ac9aSAndroid Build Coastguard Worker 		strcpy(p, sprintflags("|", personality_flags, pers));
63*cf84ac9aSAndroid Build Coastguard Worker 	tcp->auxstr = outstr;
64*cf84ac9aSAndroid Build Coastguard Worker 	return RVAL_HEX | RVAL_STR;
65*cf84ac9aSAndroid Build Coastguard Worker }
66