minix/tests/lib/libc/stdio/t_printf.c

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/* $NetBSD: t_printf.c,v 1.8 2012/04/11 16:21:42 jruoho Exp $ */
/*-
* Copyright (c) 2010 The NetBSD Foundation, Inc.
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/types.h>
#include <sys/resource.h>
#include <atf-c.h>
#include <math.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <time.h>
#include <stdlib.h>
ATF_TC(snprintf_c99);
ATF_TC_HEAD(snprintf_c99, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test printf(3) C99 conformance (PR lib/22019)");
}
ATF_TC_BODY(snprintf_c99, tc)
{
char s[4];
(void)memset(s, '\0', sizeof(s));
(void)snprintf(s, sizeof(s), "%#.o", 0);
(void)printf("printf = %#.o\n", 0);
(void)fprintf(stderr, "snprintf = %s", s);
ATF_REQUIRE(strlen(s) == 1);
ATF_REQUIRE(s[0] == '0');
}
ATF_TC(snprintf_dotzero);
ATF_TC_HEAD(snprintf_dotzero, tc)
{
atf_tc_set_md_var(tc, "descr",
"PR lib/32951: %%.0f formats (0.0,0.5] to \"0.\"");
}
ATF_TC_BODY(snprintf_dotzero, tc)
{
char s[4];
ATF_CHECK(snprintf(s, sizeof(s), "%.0f", 0.1) == 1);
ATF_REQUIRE_STREQ(s, "0");
}
ATF_TC(snprintf_posarg);
ATF_TC_HEAD(snprintf_posarg, tc)
{
atf_tc_set_md_var(tc, "descr", "test for positional arguments");
}
ATF_TC_BODY(snprintf_posarg, tc)
{
char s[16];
ATF_CHECK(snprintf(s, sizeof(s), "%1$d", -23) == 3);
ATF_REQUIRE_STREQ(s, "-23");
}
ATF_TC(snprintf_posarg_width);
ATF_TC_HEAD(snprintf_posarg_width, tc)
{
atf_tc_set_md_var(tc, "descr", "test for positional arguments with "
"field width");
}
ATF_TC_BODY(snprintf_posarg_width, tc)
{
char s[16];
ATF_CHECK(snprintf(s, sizeof(s), "%1$*2$d", -23, 4) == 4);
ATF_REQUIRE_STREQ(s, " -23");
}
ATF_TC(snprintf_posarg_error);
ATF_TC_HEAD(snprintf_posarg_error, tc)
{
atf_tc_set_md_var(tc, "descr", "test for positional arguments out "
"of bounds");
}
ATF_TC_BODY(snprintf_posarg_error, tc)
{
char s[16], fmt[32];
snprintf(fmt, sizeof(fmt), "%%%zu$d", SIZE_MAX / sizeof(size_t));
ATF_CHECK(snprintf(s, sizeof(s), fmt, -23) == -1);
}
ATF_TC(snprintf_float);
ATF_TC_HEAD(snprintf_float, tc)
{
atf_tc_set_md_var(tc, "descr", "test that floating conversions don't"
" leak memory");
}
ATF_TC_BODY(snprintf_float, tc)
{
union {
double d;
uint64_t bits;
} u;
uint32_t ul, uh;
time_t now;
char buf[1000];
struct rlimit rl;
rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024;
ATF_CHECK(setrlimit(RLIMIT_AS, &rl) != -1);
rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024;
ATF_CHECK(setrlimit(RLIMIT_DATA, &rl) != -1);
time(&now);
srand(now);
for (size_t i = 0; i < 10000; i++) {
ul = rand();
uh = rand();
u.bits = (uint64_t)uh << 32 | ul;
ATF_CHECK(snprintf(buf, sizeof buf, " %.2f", u.d) != -1);
}
}
ATF_TC(sprintf_zeropad);
ATF_TC_HEAD(sprintf_zeropad, tc)
{
atf_tc_set_md_var(tc, "descr",
"Test output format zero padding (PR lib/44113)");
}
ATF_TC_BODY(sprintf_zeropad, tc)
{
char str[1024];
ATF_CHECK(sprintf(str, "%010f", 0.0) == 10);
ATF_REQUIRE_STREQ(str, "000.000000");
/* ieeefp */
#ifndef __vax__
/* printf(3) should ignore zero padding for nan/inf */
ATF_CHECK(sprintf(str, "%010f", NAN) == 10);
ATF_REQUIRE_STREQ(str, " nan");
ATF_CHECK(sprintf(str, "%010f", INFINITY) == 10);
ATF_REQUIRE_STREQ(str, " inf");
#endif
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, snprintf_c99);
ATF_TP_ADD_TC(tp, snprintf_dotzero);
ATF_TP_ADD_TC(tp, snprintf_posarg);
ATF_TP_ADD_TC(tp, snprintf_posarg_width);
ATF_TP_ADD_TC(tp, snprintf_posarg_error);
ATF_TP_ADD_TC(tp, snprintf_float);
ATF_TP_ADD_TC(tp, sprintf_zeropad);
return atf_no_error();
}