9a41ce4a69
The %t{d,u} (ptrdiff_t) tests fail for the following reasons:
- ptrdiff_t is by definition int32_t on !LP64 architectures and int64_t on
LP64 architectures.
- intmax_t is by definition fixed to int64_t on all architectures.
- Some of the code in lib/libc/stdio/... is promoting ptrdiff_t to *intmax_t
when parsing/representing the value.
PR: 191674
MFC after: 1 week
Sponsored by: Dell EMC Isilon
163 lines
4.5 KiB
C
163 lines
4.5 KiB
C
/*-
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* Copyright (c) 2009 David Schultz <das@FreeBSD.org>
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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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*
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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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/*
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* Tests for basic and miscellaneous printf() formats.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <err.h>
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#include <limits.h>
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#include <locale.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wchar.h>
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#include <atf-c.h>
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#define S_UINT64MAX "18446744073709551615"
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#define S_UINT32MAX "4294967295"
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#define S_INT64MIN "-9223372036854775808"
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#define S_INT32MIN "-2147483648"
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#define S_SIZEMAX (SIZE_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
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#define S_ULONGMAX (ULONG_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
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#define S_ULLONGMAX (ULLONG_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
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static void
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smash_stack(void)
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{
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static uint32_t junk = 0xdeadbeef;
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uint32_t buf[512];
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int i;
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for (i = 0; i < sizeof(buf) / sizeof(buf[0]); i++)
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buf[i] = junk;
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}
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#define testfmt(result, fmt, ...) \
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_testfmt((result), #__VA_ARGS__, fmt, __VA_ARGS__)
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static void
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_testfmt(const char *result, const char *argstr, const char *fmt,...)
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{
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#define BUF 100
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wchar_t ws[BUF], wfmt[BUF], wresult[BUF];
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char s[BUF];
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va_list ap, ap2;
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va_start(ap, fmt);
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va_copy(ap2, ap);
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smash_stack();
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vsnprintf(s, sizeof(s), fmt, ap);
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ATF_CHECK_MSG(strcmp(result, s) == 0,
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"printf(\"%s\", %s) ==> [%s], expected [%s]",
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fmt, argstr, s, result);
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smash_stack();
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mbstowcs(ws, s, BUF - 1);
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mbstowcs(wfmt, fmt, BUF - 1);
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mbstowcs(wresult, result, BUF - 1);
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vswprintf(ws, sizeof(ws) / sizeof(ws[0]), wfmt, ap2);
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ATF_CHECK_MSG(wcscmp(wresult, ws) == 0,
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"wprintf(\"%ls\", %s) ==> [%ls], expected [%ls]",
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wfmt, argstr, ws, wresult);
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va_end(ap);
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va_end(ap2);
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}
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ATF_TC_WITHOUT_HEAD(int_within_limits);
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ATF_TC_BODY(int_within_limits, tc)
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{
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ATF_REQUIRE(setlocale(LC_NUMERIC, "C"));
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/* The test requires these to be true. */
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ATF_REQUIRE(UINTMAX_MAX == UINT64_MAX);
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ATF_REQUIRE(UINT_MAX == UINT32_MAX);
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ATF_REQUIRE(USHRT_MAX == 0xffff);
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ATF_REQUIRE(UCHAR_MAX == 0xff);
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/* Make sure we handle signed vs. unsigned args correctly. */
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testfmt("-1", "%jd", (intmax_t)-1);
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testfmt(S_UINT64MAX, "%ju", UINT64_MAX);
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if (sizeof(ptrdiff_t) != sizeof(uintmax_t))
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atf_tc_expect_fail("the %%t qualifier is broken on 32-bit "
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"platforms where there's a mismatch between ptrdiff_t and "
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"uintmax_t's type width; bug # 191674");
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testfmt("-1", "%td", (ptrdiff_t)-1);
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testfmt(S_SIZEMAX, "%tu", (size_t)-1);
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testfmt("-1", "%zd", (ssize_t)-1);
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testfmt(S_SIZEMAX, "%zu", (ssize_t)-1);
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testfmt("-1", "%ld", (long)-1);
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testfmt(S_ULONGMAX, "%lu", ULONG_MAX);
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testfmt("-1", "%lld", (long long)-1);
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testfmt(S_ULLONGMAX, "%llu", ULLONG_MAX);
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testfmt("-1", "%d", -1);
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testfmt(S_UINT32MAX, "%u", UINT32_MAX);
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testfmt("-1", "%hd", -1);
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testfmt("65535", "%hu", USHRT_MAX);
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testfmt("-1", "%hhd", -1);
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testfmt("255", "%hhu", UCHAR_MAX);
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}
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ATF_TC_WITHOUT_HEAD(int_limits);
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ATF_TC_BODY(int_limits, tc)
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{
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ATF_REQUIRE(setlocale(LC_NUMERIC, "C"));
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/*
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* Check that printing the largest negative number does not cause
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* overflow when it is negated.
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*/
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testfmt(S_INT32MIN, "%d", INT_MIN);
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testfmt(S_INT64MIN, "%jd", INTMAX_MIN);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, int_within_limits);
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ATF_TP_ADD_TC(tp, int_limits);
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return (atf_no_error());
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}
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