120 lines
3.5 KiB
C
120 lines
3.5 KiB
C
/*
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* Test printstrn/umoven.
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*
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* Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2017-2018 The strace developers.
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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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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <asm/unistd.h>
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#include "scno.h"
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#include "test_ucopy.h"
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static const char *errstr;
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static void add_key(const char *addr, const unsigned int len)
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{
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errstr = sprintrc(syscall(__NR_add_key, 0, 0, addr, len, -1));
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}
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static void
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test_printstrn_at(char *const p, const unsigned int test_max)
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{
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unsigned int i;
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for (i = 0; i <= test_max; ++i) {
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add_key(p + (test_max - i), i);
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printf("add_key(NULL, NULL, \"%.*s\", %u"
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", KEY_SPEC_THREAD_KEYRING) = %s\n",
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(int) i, p + (test_max - i), i, errstr);
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}
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}
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static void
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test_efault(const unsigned int test_max)
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{
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char *p = tail_alloc(test_max);
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memset(p, '/', test_max);
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unsigned int i;
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for (i = 0; i <= test_max; ++i) {
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unsigned int j;
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for (j = 1; j <= sizeof(long); ++j) {
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add_key(p + (test_max - i), i + j);
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printf("add_key(NULL, NULL, %p, %u"
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", KEY_SPEC_THREAD_KEYRING) = %s\n",
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p + (test_max - i), i + j, errstr);
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}
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}
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}
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static void
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test_print_memory(char *const p, const unsigned int test_max)
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{
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add_key(p, test_max);
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printf("add_key(NULL, NULL, ");
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print_quoted_memory(p, test_max);
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printf(", %u, KEY_SPEC_THREAD_KEYRING) = %s\n", test_max, errstr);
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}
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void
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test_printstrn(const unsigned int test_max)
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{
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/*
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* abcdefgh|
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* abcdefg|h
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* abcdef|gh
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* abcde|fgh
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* abcd|efgh
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* abc|defgh
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* ab|cdefgh
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* a|bcdefgh
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* |abcdefgh
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*/
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const unsigned int page_size = get_page_size();
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char *p = tail_alloc(test_max + page_size);
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fill_memory_ex(p, test_max + page_size, 'a', 'z' - 'a' + 1);
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unsigned int i;
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for (i = 1; i <= sizeof(long); ++i)
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test_printstrn_at(p + i, test_max);
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for (i = 0; i < sizeof(long); ++i)
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test_printstrn_at(p + page_size - i, test_max);
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test_efault(test_max);
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fill_memory_ex(p, test_max + page_size, 0x00, 0xFF);
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/* Test corner cases when octal quoting goes before digit */
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for (i = 0; i < 11; i++)
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p[2 + 3 * i] = '0' + i - 1;
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test_print_memory(p, test_max);
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}
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