mirror of
https://github.com/cryb-to/cryb-to.git
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305 lines
7.2 KiB
C
305 lines
7.2 KiB
C
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/*-
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* Copyright (c) 2015 Dag-Erling Smørgrav
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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
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "cryb/impl.h"
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#include <errno.h>
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#include <stdint.h>
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#include <string.h>
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#include <unistd.h>
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#undef HAVE_MEMCPY_S
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#include <cryb/memcpy_s.h>
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#include <cryb/strlcpy.h>
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#include <cryb/test.h>
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#define T_BUF_LEN 40
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struct t_plain_case {
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const char *desc;
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const char in[T_BUF_LEN];
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size_t dsz;
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const char s[T_BUF_LEN];
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size_t len;
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const char out[T_BUF_LEN];
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size_t outlen;
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int ret;
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};
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/***************************************************************************
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* Plain test cases
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*/
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static struct t_plain_case t_plain_cases[] = {
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{
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.desc = "zero",
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.in = "squeamish ossifrage",
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.dsz = sizeof "squeamish ossifrage" - 1,
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.s = "",
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.len = 0,
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.out = "squeamish ossifrage",
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.ret = 0,
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},
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{
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.desc = "short",
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.in = "squeamish ossifrage",
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.dsz = sizeof "squeamish ossifrage" - 1,
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.s = "the quick",
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.len = sizeof "the quick" - 1,
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.out = "the quick ossifrage",
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.ret = 0,
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},
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{
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.desc = "exact",
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.in = "squeamish ossifrage",
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.dsz = sizeof "squeamish ossifrage" - 1,
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.s = "the quick brown fox",
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.len = sizeof "the quick brown fox" - 1,
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.out = "the quick brown fox",
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.ret = 0,
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},
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{
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.desc = "long",
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.in = "squeamish ossifrage",
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.dsz = sizeof "squeamish ossifrage" - 1,
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.s = "the quick brown fox jumps",
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.len = sizeof "the quick brown fox jumps" + 1,
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.out = "",
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.ret = EOVERFLOW,
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},
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};
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static int
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t_memcpy_s(char **desc CRYB_UNUSED, void *arg)
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{
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struct t_plain_case *t = arg;
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char buf[T_BUF_LEN];
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int ret;
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memset(buf, 0, sizeof buf);
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strlcpy(buf, t->in, T_BUF_LEN);
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ret = memcpy_s(buf, t->dsz, t->s, t->len);
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return (t_compare_i(t->ret, ret) &
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t_compare_mem(t->out, buf, T_BUF_LEN));
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}
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/***************************************************************************
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* Overlapping test cases
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*/
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struct t_overlap_case {
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const char *desc;
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const char *in;
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size_t s_off, s_len, d_off, d_len;
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const char out[T_BUF_LEN];
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int ret;
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};
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static struct t_overlap_case t_overlap_cases[] = {
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{
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/* [<<<<<<<<<< >>>>>>>>>>] */
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.desc = "left, disjoint",
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.in = "the magic words are squeamish ossifrage",
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.s_off = 0,
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.s_len = 15,
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.d_off = 16,
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.d_len = 23,
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.out = "the magic words the magic wordsssifrage",
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.ret = 0,
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},
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{
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/* [<<<<<<<<<<>>>>>>>>>>] */
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.desc = "left, adjoining",
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.in = "the magic words are squeamish ossifrage",
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.s_off = 0,
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.s_len = 16,
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.d_off = 16,
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.d_len = 23,
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.out = "the magic words the magic words sifrage",
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.ret = 0,
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},
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{
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/* [>>>>>>>>>> <<<<<<<<<<] */
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.desc = "right, disjoint",
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.in = "the magic words are squeamish ossifrage",
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.s_off = 20,
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.s_len = 19,
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.d_off = 0,
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.d_len = 19,
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.out = "squeamish ossifrage squeamish ossifrage",
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.ret = 0,
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},
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{
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/* [>>>>>>>>>><<<<<<<<<<] */
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.desc = "right, adjoining",
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.in = "the magic words are squeamish ossifrage",
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.s_off = 20,
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.s_len = 19,
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.d_off = 0,
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.d_len = 19,
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.out = "squeamish ossifrage squeamish ossifrage",
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.ret = 0,
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},
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{
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/* [<<<<<<<<XXXX>>>>>>>>] */
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.desc = "left, overlapping",
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.in = "the magic words are squeamish ossifrage",
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.s_off = 4,
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.s_len = 15,
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.d_off = 16,
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.d_len = 23,
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.out = "the magic words ",
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.ret = EINVAL,
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},
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{
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/* [>>>>>>>>XXXX<<<<<<<<] */
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.desc = "right, overlapping",
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.in = "the magic words are squeamish ossifrage",
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.s_off = 16,
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.s_len = 23,
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.d_off = 0,
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.d_len = 29,
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.out = "\0\0\0\0\0\0\0\0\0\0"
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"\0\0\0\0\0\0\0\0\0\0"
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"\0\0\0\0\0\0\0\0\0"
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" ossifrage",
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.ret = EINVAL,
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},
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{
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/* [>>>>>>>>XXXX>>>>>>>>] */
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.desc = "inside",
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.in = "the magic words are squeamish ossifrage",
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.s_off = 10,
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.s_len = 19,
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.d_off = 0,
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.d_len = 39,
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.out = "",
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.ret = EINVAL,
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},
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{
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/* [<<<<<<<<XXXX<<<<<<<<] */
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/* caught by n > sz before overlap is noticed */
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.desc = "outside",
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.in = "the magic words are squeamish ossifrage",
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.s_off = 0,
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.s_len = 39,
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.d_off = 10,
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.d_len = 19,
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.out = "the magic "
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"\0\0\0\0\0\0\0\0\0\0"
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"\0\0\0\0\0\0\0\0\0"
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" ossifrage",
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.ret = EOVERFLOW,
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},
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{
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/* [XXXXXXXXXXXXXXXXXXXX] */
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.desc = "full overlap",
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.in = "the magic words are squeamish ossifrage",
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.s_off = 10,
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.s_len = 19,
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.d_off = 10,
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.d_len = 19,
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.out = "the magic "
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"\0\0\0\0\0\0\0\0\0\0"
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"\0\0\0\0\0\0\0\0\0"
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" ossifrage",
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.ret = EINVAL,
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},
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};
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static int
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t_memcpy_s_overlap(char **desc CRYB_UNUSED, void *arg)
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{
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struct t_overlap_case *t = arg;
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char buf[T_BUF_LEN];
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int ret;
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strlcpy(buf, t->in, sizeof buf);
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ret = memcpy_s(buf + t->d_off, t->d_len, buf + t->s_off, t->s_len);
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return (t_compare_i(t->ret, ret) &
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t_compare_mem(t->out, buf, T_BUF_LEN));
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}
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/***************************************************************************
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* NULL cases
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*/
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static int
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t_memcpy_s_null_d(char **desc CRYB_UNUSED, void *arg)
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{
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char buf[T_BUF_LEN];
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int ret;
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(void)arg;
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memset(buf, 'x', sizeof buf);
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ret = memcpy_s(NULL, sizeof buf, buf, sizeof buf);
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return (t_compare_i(EINVAL, ret));
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}
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static int
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t_memcpy_s_null_s(char **desc CRYB_UNUSED, void *arg)
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{
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char buf[T_BUF_LEN];
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int ret;
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(void)arg;
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memset(buf, 0, sizeof buf);
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ret = memcpy_s(buf, sizeof buf, NULL, sizeof buf);
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return (t_compare_i(EINVAL, ret) &
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t_compare_mem(buf, t_zero, sizeof buf));
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}
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/***************************************************************************
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* Boilerplate
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*/
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int
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t_prepare(int argc, char *argv[])
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{
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int i, n;
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(void)argc;
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(void)argv;
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t_add_test(t_memcpy_s_null_s, NULL, "null source");
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t_add_test(t_memcpy_s_null_d, NULL, "null destination");
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n = sizeof t_plain_cases / sizeof t_plain_cases[0];
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for (i = 0; i < n; ++i)
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t_add_test(t_memcpy_s, &t_plain_cases[i],
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t_plain_cases[i].desc);
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n = sizeof t_overlap_cases / sizeof t_overlap_cases[0];
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for (i = 0; i < n; ++i)
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t_add_test(t_memcpy_s_overlap, &t_overlap_cases[i],
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t_overlap_cases[i].desc);
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return (0);
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}
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void
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t_cleanup(void)
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{
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}
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