2 * Check decoding of prctl PR_GET_NAME/PR_SET_NAME operations.
4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
5 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
8 * SPDX-License-Identifier: GPL-2.0-or-later
14 # include <sys/prctl.h>
17 #if defined HAVE_PRCTL && defined PR_GET_NAME && defined PR_SET_NAME
26 static const char str[] = "0123456789abcdef";
27 static const int len = sizeof(str) - 1;
28 char *name = tail_memdup(str, sizeof(str));
32 rc = prctl(PR_SET_NAME, NULL);
33 printf("prctl(PR_SET_NAME, NULL) = %s\n", sprintrc(rc));
35 for (i = 0; i <= len; ++i) {
36 rc = prctl(PR_SET_NAME, name + len - i);
37 printf("prctl(PR_SET_NAME, \"%.*s\"%s) = %s\n",
38 i < len - 1 ? i : len - 1,
40 i < len - 1 ? "" : "...",
46 memcpy(name, str, len);
48 for (i = 0; i <= len; ++i) {
49 rc = prctl(PR_SET_NAME, name + len - i);
51 printf("prctl(PR_SET_NAME, %p) = %s\n",
52 name + len - i, sprintrc(rc));
54 printf("prctl(PR_SET_NAME, \"%.*s\"...) = %s\n",
55 len - 1, str + len - i, sprintrc(rc));
58 rc = prctl(PR_GET_NAME, NULL);
59 printf("prctl(PR_GET_NAME, NULL) = %s\n", sprintrc(rc));
61 for (i = 0; i < len; ++i) {
62 rc = prctl(PR_GET_NAME, name + len - i);
63 printf("prctl(PR_GET_NAME, %p) = %s\n",
64 name + len - i, sprintrc(rc));
67 rc = prctl(PR_GET_NAME, name);
69 printf("prctl(PR_GET_NAME, %p) = %s\n",
72 printf("prctl(PR_GET_NAME, \"%.*s\") = %s\n",
73 len - 1, name, sprintrc(rc));
75 puts("+++ exited with 0 +++");
81 SKIP_MAIN_UNDEFINED("HAVE_PRCTL && PR_GET_NAME && PR_SET_NAME")