104 lines
3.2 KiB
C
104 lines
3.2 KiB
C
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/*
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* Check decoding of prctl PR_GET_NAME/PR_SET_NAME operations.
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*
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* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
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* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#ifdef HAVE_PRCTL
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# include <sys/prctl.h>
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#endif
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#if defined HAVE_PRCTL && defined PR_GET_NAME && defined PR_SET_NAME
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# include <stdio.h>
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# include <string.h>
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# include <unistd.h>
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int
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main(void)
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{
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static const char str[] = "0123456789abcdef";
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static const int len = sizeof(str) - 1;
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char *name = tail_memdup(str, sizeof(str));
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int i;
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int rc;
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rc = prctl(PR_SET_NAME, NULL);
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printf("prctl(PR_SET_NAME, NULL) = %s\n", sprintrc(rc));
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for (i = 0; i <= len; ++i) {
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rc = prctl(PR_SET_NAME, name + len - i);
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printf("prctl(PR_SET_NAME, \"%.*s\"%s) = %s\n",
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i < len - 1 ? i : len - 1,
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str + len - i,
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i < len - 1 ? "" : "...",
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sprintrc(rc));
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}
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*name = -1;
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++name;
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memcpy(name, str, len);
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for (i = 0; i <= len; ++i) {
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rc = prctl(PR_SET_NAME, name + len - i);
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if (i < len - 1)
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printf("prctl(PR_SET_NAME, %p) = %s\n",
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name + len - i, sprintrc(rc));
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else
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printf("prctl(PR_SET_NAME, \"%.*s\"...) = %s\n",
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len - 1, str + len - i, sprintrc(rc));
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}
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rc = prctl(PR_GET_NAME, NULL);
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printf("prctl(PR_GET_NAME, NULL) = %s\n", sprintrc(rc));
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for (i = 0; i < len; ++i) {
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rc = prctl(PR_GET_NAME, name + len - i);
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printf("prctl(PR_GET_NAME, %p) = %s\n",
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name + len - i, sprintrc(rc));
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}
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rc = prctl(PR_GET_NAME, name);
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if (rc)
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printf("prctl(PR_GET_NAME, %p) = %s\n",
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name, sprintrc(rc));
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else
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printf("prctl(PR_GET_NAME, \"%.*s\") = %s\n",
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len - 1, name, sprintrc(rc));
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("HAVE_PRCTL && PR_GET_NAME && PR_SET_NAME")
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#endif
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