mirror of
https://github.com/cryb-to/cryb-to.git
synced 2024-11-24 06:35:45 +00:00
a1bf5e87f0
The caveat is needed because if you include one of these headers on a system that defines rsize_t without having the correct incantations in your configure.ac, you are going to have a bad time. But there is no good general solution to the problem.
307 lines
7.3 KiB
C
307 lines
7.3 KiB
C
/*-
|
||
* Copyright (c) 2015-2018 The University of Oslo
|
||
* All rights reserved.
|
||
*
|
||
* Redistribution and use in source and binary forms, with or without
|
||
* modification, are permitted provided that the following conditions
|
||
* are met:
|
||
* 1. Redistributions of source code must retain the above copyright
|
||
* notice, this list of conditions and the following disclaimer.
|
||
* 2. Redistributions in binary form must reproduce the above copyright
|
||
* notice, this list of conditions and the following disclaimer in the
|
||
* documentation and/or other materials provided with the distribution.
|
||
* 3. The name of the author may not be used to endorse or promote
|
||
* products derived from this software without specific prior written
|
||
* permission.
|
||
*
|
||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
* SUCH DAMAGE.
|
||
*/
|
||
|
||
#include "cryb/impl.h"
|
||
|
||
#include <errno.h>
|
||
#include <stdint.h>
|
||
#include <string.h>
|
||
#include <unistd.h>
|
||
|
||
#undef HAVE_MEMCPY_S
|
||
#include <cryb/memcpy_s.h>
|
||
#include <cryb/strlcpy.h>
|
||
#include <cryb/test.h>
|
||
|
||
#define T_BUF_LEN 40
|
||
|
||
struct t_plain_case {
|
||
const char *desc;
|
||
const char in[T_BUF_LEN];
|
||
rsize_t dsz;
|
||
const char s[T_BUF_LEN];
|
||
rsize_t len;
|
||
const char out[T_BUF_LEN];
|
||
rsize_t outlen;
|
||
int ret;
|
||
};
|
||
|
||
/***************************************************************************
|
||
* Plain test cases
|
||
*/
|
||
static struct t_plain_case t_plain_cases[] = {
|
||
{
|
||
.desc = "zero",
|
||
.in = "squeamish ossifrage",
|
||
.dsz = sizeof "squeamish ossifrage" - 1,
|
||
.s = "",
|
||
.len = 0,
|
||
.out = "squeamish ossifrage",
|
||
.ret = 0,
|
||
},
|
||
{
|
||
.desc = "short",
|
||
.in = "squeamish ossifrage",
|
||
.dsz = sizeof "squeamish ossifrage" - 1,
|
||
.s = "the quick",
|
||
.len = sizeof "the quick" - 1,
|
||
.out = "the quick ossifrage",
|
||
.ret = 0,
|
||
},
|
||
{
|
||
.desc = "exact",
|
||
.in = "squeamish ossifrage",
|
||
.dsz = sizeof "squeamish ossifrage" - 1,
|
||
.s = "the quick brown fox",
|
||
.len = sizeof "the quick brown fox" - 1,
|
||
.out = "the quick brown fox",
|
||
.ret = 0,
|
||
},
|
||
{
|
||
.desc = "long",
|
||
.in = "squeamish ossifrage",
|
||
.dsz = sizeof "squeamish ossifrage" - 1,
|
||
.s = "the quick brown fox jumps",
|
||
.len = sizeof "the quick brown fox jumps" + 1,
|
||
.out = "",
|
||
.ret = EOVERFLOW,
|
||
},
|
||
};
|
||
|
||
static int
|
||
t_memcpy_s(char **desc CRYB_UNUSED, void *arg)
|
||
{
|
||
struct t_plain_case *t = arg;
|
||
char buf[T_BUF_LEN];
|
||
int ret;
|
||
|
||
memset(buf, 0, sizeof buf);
|
||
strlcpy(buf, t->in, T_BUF_LEN);
|
||
ret = memcpy_s(buf, t->dsz, t->s, t->len);
|
||
return (t_compare_i(t->ret, ret) &
|
||
t_compare_mem(t->out, buf, T_BUF_LEN));
|
||
}
|
||
|
||
/***************************************************************************
|
||
* Overlapping test cases
|
||
*/
|
||
|
||
struct t_overlap_case {
|
||
const char *desc;
|
||
const char *in;
|
||
size_t s_off, d_off;
|
||
rsize_t s_len, d_len;
|
||
const char out[T_BUF_LEN];
|
||
int ret;
|
||
};
|
||
|
||
static struct t_overlap_case t_overlap_cases[] = {
|
||
{
|
||
/* [<<<<<<<<<< >>>>>>>>>>] */
|
||
.desc = "left, disjoint",
|
||
.in = "the magic words are squeamish ossifrage",
|
||
.s_off = 0,
|
||
.s_len = 15,
|
||
.d_off = 16,
|
||
.d_len = 23,
|
||
.out = "the magic words the magic wordsssifrage",
|
||
.ret = 0,
|
||
},
|
||
{
|
||
/* [<<<<<<<<<<>>>>>>>>>>] */
|
||
.desc = "left, adjoining",
|
||
.in = "the magic words are squeamish ossifrage",
|
||
.s_off = 0,
|
||
.s_len = 16,
|
||
.d_off = 16,
|
||
.d_len = 23,
|
||
.out = "the magic words the magic words sifrage",
|
||
.ret = 0,
|
||
},
|
||
{
|
||
/* [>>>>>>>>>> <<<<<<<<<<] */
|
||
.desc = "right, disjoint",
|
||
.in = "the magic words are squeamish ossifrage",
|
||
.s_off = 20,
|
||
.s_len = 19,
|
||
.d_off = 0,
|
||
.d_len = 19,
|
||
.out = "squeamish ossifrage squeamish ossifrage",
|
||
.ret = 0,
|
||
},
|
||
{
|
||
/* [>>>>>>>>>><<<<<<<<<<] */
|
||
.desc = "right, adjoining",
|
||
.in = "the magic words are squeamish ossifrage",
|
||
.s_off = 20,
|
||
.s_len = 19,
|
||
.d_off = 0,
|
||
.d_len = 19,
|
||
.out = "squeamish ossifrage squeamish ossifrage",
|
||
.ret = 0,
|
||
},
|
||
{
|
||
/* [<<<<<<<<XXXX>>>>>>>>] */
|
||
.desc = "left, overlapping",
|
||
.in = "the magic words are squeamish ossifrage",
|
||
.s_off = 4,
|
||
.s_len = 15,
|
||
.d_off = 16,
|
||
.d_len = 23,
|
||
.out = "the magic words ",
|
||
.ret = EINVAL,
|
||
},
|
||
{
|
||
/* [>>>>>>>>XXXX<<<<<<<<] */
|
||
.desc = "right, overlapping",
|
||
.in = "the magic words are squeamish ossifrage",
|
||
.s_off = 16,
|
||
.s_len = 23,
|
||
.d_off = 0,
|
||
.d_len = 29,
|
||
.out = "\0\0\0\0\0\0\0\0\0\0"
|
||
"\0\0\0\0\0\0\0\0\0\0"
|
||
"\0\0\0\0\0\0\0\0\0"
|
||
" ossifrage",
|
||
.ret = EINVAL,
|
||
},
|
||
{
|
||
/* [>>>>>>>>XXXX>>>>>>>>] */
|
||
.desc = "inside",
|
||
.in = "the magic words are squeamish ossifrage",
|
||
.s_off = 10,
|
||
.s_len = 19,
|
||
.d_off = 0,
|
||
.d_len = 39,
|
||
.out = "",
|
||
.ret = EINVAL,
|
||
},
|
||
{
|
||
/* [<<<<<<<<XXXX<<<<<<<<] */
|
||
/* caught by n > sz before overlap is noticed */
|
||
.desc = "outside",
|
||
.in = "the magic words are squeamish ossifrage",
|
||
.s_off = 0,
|
||
.s_len = 39,
|
||
.d_off = 10,
|
||
.d_len = 19,
|
||
.out = "the magic "
|
||
"\0\0\0\0\0\0\0\0\0\0"
|
||
"\0\0\0\0\0\0\0\0\0"
|
||
" ossifrage",
|
||
.ret = EOVERFLOW,
|
||
},
|
||
{
|
||
/* [XXXXXXXXXXXXXXXXXXXX] */
|
||
.desc = "full overlap",
|
||
.in = "the magic words are squeamish ossifrage",
|
||
.s_off = 10,
|
||
.s_len = 19,
|
||
.d_off = 10,
|
||
.d_len = 19,
|
||
.out = "the magic "
|
||
"\0\0\0\0\0\0\0\0\0\0"
|
||
"\0\0\0\0\0\0\0\0\0"
|
||
" ossifrage",
|
||
.ret = EINVAL,
|
||
},
|
||
};
|
||
|
||
static int
|
||
t_memcpy_s_overlap(char **desc CRYB_UNUSED, void *arg)
|
||
{
|
||
struct t_overlap_case *t = arg;
|
||
char buf[T_BUF_LEN];
|
||
int ret;
|
||
|
||
strlcpy(buf, t->in, sizeof buf);
|
||
ret = memcpy_s(buf + t->d_off, t->d_len, buf + t->s_off, t->s_len);
|
||
return (t_compare_i(t->ret, ret) &
|
||
t_compare_mem(t->out, buf, T_BUF_LEN));
|
||
}
|
||
|
||
/***************************************************************************
|
||
* NULL cases
|
||
*/
|
||
static int
|
||
t_memcpy_s_null_d(char **desc CRYB_UNUSED, void *arg)
|
||
{
|
||
char buf[T_BUF_LEN];
|
||
int ret;
|
||
|
||
(void)arg;
|
||
memset(buf, 'x', sizeof buf);
|
||
ret = memcpy_s(NULL, sizeof buf, buf, sizeof buf);
|
||
return (t_compare_i(EINVAL, ret));
|
||
}
|
||
|
||
static int
|
||
t_memcpy_s_null_s(char **desc CRYB_UNUSED, void *arg)
|
||
{
|
||
char buf[T_BUF_LEN];
|
||
int ret;
|
||
|
||
(void)arg;
|
||
memset(buf, 0, sizeof buf);
|
||
ret = memcpy_s(buf, sizeof buf, NULL, sizeof buf);
|
||
return (t_compare_i(EINVAL, ret) &
|
||
t_compare_mem(buf, t_zero, sizeof buf));
|
||
}
|
||
|
||
|
||
/***************************************************************************
|
||
* Boilerplate
|
||
*/
|
||
|
||
int
|
||
t_prepare(int argc, char *argv[])
|
||
{
|
||
int i, n;
|
||
|
||
(void)argc;
|
||
(void)argv;
|
||
t_add_test(t_memcpy_s_null_s, NULL, "null source");
|
||
t_add_test(t_memcpy_s_null_d, NULL, "null destination");
|
||
n = sizeof t_plain_cases / sizeof t_plain_cases[0];
|
||
for (i = 0; i < n; ++i)
|
||
t_add_test(t_memcpy_s, &t_plain_cases[i], "%s",
|
||
t_plain_cases[i].desc);
|
||
n = sizeof t_overlap_cases / sizeof t_overlap_cases[0];
|
||
for (i = 0; i < n; ++i)
|
||
t_add_test(t_memcpy_s_overlap, &t_overlap_cases[i], "%s",
|
||
t_overlap_cases[i].desc);
|
||
return (0);
|
||
}
|
||
|
||
int
|
||
main(int argc, char *argv[])
|
||
{
|
||
|
||
t_main(t_prepare, NULL, argc, argv);
|
||
}
|