cryb-to/t/t_strlcpy.c

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/*-
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* Copyright (c) 2014-2017 Dag-Erling Smørgrav
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* 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 <sys/types.h>
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#include <stdint.h>
#include <string.h>
#include <unistd.h>
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#include <cryb/strlcpy.h>
#include <cryb/test.h>
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typedef size_t (*strlcpy_f)(char *, const char *, size_t);
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#define T_MAGIC_STR "squeamish ossifrage"
#define T_MAGIC_LEN (sizeof(T_MAGIC_STR) - 1)
#define T_BUFSIZE (T_MAGIC_LEN + 1 + T_MAGIC_LEN + 1)
#define T_CANARY 0x7f
struct t_case {
const char *desc;
const char *in;
const char *out;
size_t sz;
};
/***************************************************************************
* Test cases
*/
static struct t_case t_cases[] = {
{
.desc = "empty",
.in = "",
.out = "",
.sz = 0,
},
{
.desc = "short",
.in = T_MAGIC_STR,
.out = T_MAGIC_STR,
.sz = T_MAGIC_LEN,
},
{
.desc = "full",
.in = T_MAGIC_STR " " T_MAGIC_STR,
.out = T_MAGIC_STR " " T_MAGIC_STR,
.sz = T_BUFSIZE - 1,
},
{
.desc = "overflow",
.in = T_MAGIC_STR " " T_MAGIC_STR " " T_MAGIC_STR,
.out = T_MAGIC_STR " " T_MAGIC_STR,
.sz = T_MAGIC_LEN + 1 + T_MAGIC_LEN + 1 + T_MAGIC_LEN,
},
};
/***************************************************************************
* Test function
*/
static int
t_strlcpy(strlcpy_f func, const struct t_case *t)
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{
char buf[T_BUFSIZE + 1];
size_t sz;
memset(buf, T_CANARY, sizeof buf);
sz = func(buf, t->in, T_BUFSIZE);
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if (buf[T_BUFSIZE] != T_CANARY) {
t_printv("buffer overflow\n");
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return (0);
}
return (t_compare_sz(t->sz, sz) & t_compare_str(t->out, buf));
}
static int
t_cryb_strlcpy(char **desc CRYB_UNUSED, void *arg)
{
const struct t_case *t = arg;
return (t_strlcpy(cryb_strlcpy, t));
}
#if HAVE_STRLCPY
static int
t_libc_strlcpy(char **desc CRYB_UNUSED, void *arg)
{
const struct t_case *t = arg;
return (t_strlcpy(strlcpy, t));
}
#endif
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/***************************************************************************
* Boilerplate
*/
static int
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t_prepare(int argc, char *argv[])
{
int i, n;
(void)argc;
(void)argv;
n = sizeof t_cases / sizeof t_cases[0];
for (i = 0; i < n; ++i)
t_add_test(t_cryb_strlcpy, &t_cases[i],
"%s (cryb)", t_cases[i].desc);
#if HAVE_STRLCPY
for (i = 0; i < n; ++i)
t_add_test(t_libc_strlcpy, &t_cases[i],
"%s (libc)", t_cases[i].desc);
#endif
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return (0);
}
int
main(int argc, char *argv[])
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{
t_main(t_prepare, NULL, argc, argv);
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}