/*-
* Copyright (c) 2009 David Schultz <das@FreeBSD.org>
* 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.
*
* 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.
*/
/*
* Tests for basic and miscellaneous printf() formats.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <err.h>
#include <limits.h>
#include <locale.h>
#include <stdio.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <atf-c.h>
#define S_UINT64MAX "18446744073709551615"
#define S_UINT32MAX "4294967295"
#define S_INT64MIN "-9223372036854775808"
#define S_INT32MIN "-2147483648"
#define S_SIZEMAX (SIZE_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
#define S_ULONGMAX (ULONG_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
#define S_ULLONGMAX (ULLONG_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
static void
smash_stack(void)
{
static uint32_t junk = 0xdeadbeef;
uint32_t buf[512];
int i;
for (i = 0; i < sizeof(buf) / sizeof(buf[0]); i++)
buf[i] = junk;
}
#define testfmt(result, fmt, ...) \
_testfmt((result), #__VA_ARGS__, fmt, __VA_ARGS__)
static void
_testfmt(const char *result, const char *argstr, const char *fmt,...)
{
#define BUF 100
wchar_t ws[BUF], wfmt[BUF], wresult[BUF];
char s[BUF];
va_list ap, ap2;
va_start(ap, fmt);
va_copy(ap2, ap);
smash_stack();
vsnprintf(s, sizeof(s), fmt, ap);
ATF_CHECK_MSG(strcmp(result, s) == 0,
"printf(\"%s\", %s) ==> [%s], expected [%s]",
fmt, argstr, s, result);
smash_stack();
mbstowcs(ws, s, BUF - 1);
mbstowcs(wfmt, fmt, BUF - 1);
mbstowcs(wresult, result, BUF - 1);
vswprintf(ws, sizeof(ws) / sizeof(ws[0]), wfmt, ap2);
ATF_CHECK_MSG(wcscmp(wresult, ws) == 0,
"wprintf(\"%ls\", %s) ==> [%ls], expected [%ls]",
wfmt, argstr, ws, wresult);
va_end(ap);
va_end(ap2);
}
ATF_TC_WITHOUT_HEAD(int_within_limits);
ATF_TC_BODY(int_within_limits, tc)
{
ATF_REQUIRE(setlocale(LC_NUMERIC, "C"));
/* The test requires these to be true. */
ATF_REQUIRE(UINTMAX_MAX == UINT64_MAX);
ATF_REQUIRE(UINT_MAX == UINT32_MAX);
ATF_REQUIRE(USHRT_MAX == 0xffff);
ATF_REQUIRE(UCHAR_MAX == 0xff);
/* Make sure we handle signed vs. unsigned args correctly. */
testfmt("-1", "%jd", (intmax_t)-1);
testfmt(S_UINT64MAX, "%ju", UINT64_MAX);
if (sizeof(ptrdiff_t) != sizeof(uintmax_t))
atf_tc_expect_fail("the %%t qualifier is broken on 32-bit "
"platforms where there's a mismatch between ptrdiff_t and "
"uintmax_t's type width; bug # 191674");
testfmt("-1", "%td", (ptrdiff_t)-1);
testfmt(S_SIZEMAX, "%tu", (size_t)-1);
testfmt("-1", "%zd", (ssize_t)-1);
testfmt(S_SIZEMAX, "%zu", (ssize_t)-1);
testfmt("-1", "%ld", (long)-1);
testfmt(S_ULONGMAX, "%lu", ULONG_MAX);
testfmt("-1", "%lld", (long long)-1);
testfmt(S_ULLONGMAX, "%llu", ULLONG_MAX);
testfmt("-1", "%d", -1);
testfmt(S_UINT32MAX, "%u", UINT32_MAX);
testfmt("-1", "%hd", -1);
testfmt("65535", "%hu", USHRT_MAX);
testfmt("-1", "%hhd", -1);
testfmt("255", "%hhu", UCHAR_MAX);
}
ATF_TC_WITHOUT_HEAD(int_limits);
ATF_TC_BODY(int_limits, tc)
{
ATF_REQUIRE(setlocale(LC_NUMERIC, "C"));
/*
* Check that printing the largest negative number does not cause
* overflow when it is negated.
*/
testfmt(S_INT32MIN, "%d", INT_MIN);
testfmt(S_INT64MIN, "%jd", INTMAX_MIN);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, int_within_limits);
ATF_TP_ADD_TC(tp, int_limits);
return (atf_no_error());
}
