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glibc/stdio-common/tst-sscanf.c
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/* Copyright (C) 2000-2015 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Jakub Jelinek <jakub@redhat.com>, 2000. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#include <stdlib.h> | |
#include <stdio.h> | |
#include <locale.h> | |
#ifndef CHAR | |
# define CHAR char | |
# define L(str) str | |
# define SSCANF sscanf | |
#endif | |
const CHAR *str_double[] = | |
{ | |
L("-.10000E+020.20000E+020.25000E+010.40000E+010.50000E+010.12500E+01"), | |
L("0.10000E+020.20000E+020.25000E+010.40000E+010.50000E+010.12500E+01"), | |
L("-1234567E0198765432E0912345678901987654321091234567890198765432109"), | |
L("-0.1000E+020.20000E+020.25000E+010.40000E+010.50000E+010.12500E+01") | |
}; | |
const double val_double[] = | |
{ | |
-.10000E+02, 0.20000E+02, 0.25000E+01, 0.40000E+01, 0.50000E+01, 0.12500E+01, | |
0.10000E+02, 0.20000E+02, 0.25000E+01, 0.40000E+01, 0.50000E+01, 0.12500E+01, | |
-1234567E01, 98765432E09, 12345678901.0, 98765432109.0, 12345678901.0, | |
98765432109.0, | |
-0.1000E+02, 0.20000E+02, 0.25000E+01, 0.40000E+01, 0.50000E+01, 0.12500E+01 | |
}; | |
const CHAR *str_long[] = | |
{ | |
L("-12345678987654321123456789987654321123456789987654321"), | |
L("-12345678987654321123456789987654321123456789987654321"), | |
L("-12,345,678987,654,321123,456,789987,654,321123,456,789987,654,321"), | |
L("-12,345,678987,654,321123,456,789987,654,321123,456,789987,654,321") | |
}; | |
const CHAR *fmt_long[] = | |
{ | |
L("%9ld%9ld%9ld%9ld%9ld%9ld"), | |
L("%I9ld%I9ld%I9ld%I9ld%I9ld%I9ld"), | |
L("%'11ld%'11ld%'11ld%'11ld%'11ld%'11ld"), | |
L("%I'11ld%I'11ld%I'11ld%I'11ld%I'11ld%I'11ld") | |
}; | |
const long int val_long[] = | |
{ | |
-12345678, 987654321, 123456789, 987654321, 123456789, 987654321 | |
}; | |
struct test | |
{ | |
const CHAR *str; | |
const CHAR *fmt; | |
int retval; | |
} int_tests[] = | |
{ | |
{ L("foo\n"), L("foo\nbar"), -1 }, | |
{ L("foo\n"), L("foo bar"), -1 }, | |
{ L("foo\n"), L("foo %d"), -1 }, | |
{ L("foo\n"), L("foo\n%d"), -1 }, | |
{ L("foon"), L("foonbar"), -1 }, | |
{ L("foon"), L("foon%d"), -1 }, | |
{ L("foo "), L("foo bar"), -1 }, | |
{ L("foo "), L("foo %d"), -1 }, | |
{ L("foo\t"), L("foo\tbar"), -1 }, | |
{ L("foo\t"), L("foo bar"), -1 }, | |
{ L("foo\t"), L("foo %d"), -1 }, | |
{ L("foo\t"), L("foo\t%d"), -1 }, | |
{ L("foo"), L("foo"), 0 }, | |
{ L("foon"), L("foo bar"), 0 }, | |
{ L("foon"), L("foo %d"), 0 }, | |
{ L("foo "), L("fooxbar"), 0 }, | |
{ L("foo "), L("foox%d"), 0 }, | |
{ L("foo bar"), L("foon"), 0 }, | |
{ L("foo bar"), L("foo bar"), 0 }, | |
{ L("foo bar"), L("foo %d"), 0 }, | |
{ L("foo bar"), L("foon%d"), 0 }, | |
{ L("foo (nil)"), L("foo %p"), 1}, | |
{ L("foo (nil)"), L("foo %4p"), 0}, | |
{ L("foo "), L("foo %n"), 0 }, | |
{ L("foo%bar1"), L("foo%%bar%d"), 1 }, | |
/* Some OSes skip whitespace here while others don't. */ | |
{ L("foo \t %bar1"), L("foo%%bar%d"), 1 } | |
}; | |
struct test double_tests[] = | |
{ | |
{ L("-1"), L("%1g"), 0 }, | |
{ L("-.1"), L("%2g"), 0 }, | |
{ L("-inf"), L("%3g"), 0 }, | |
{ L("+0"), L("%1g"), }, | |
{ L("-0x1p0"), L("%2g"), 1 }, | |
{ L("-..1"), L("%g"), 0 }, | |
{ L("-inf"), L("%g"), 1 } | |
}; | |
struct test2 | |
{ | |
const CHAR *str; | |
const CHAR *fmt; | |
int retval; | |
char residual; | |
} double_tests2[] = | |
{ | |
{ L("0e+0"), L("%g%c"), 1, 0 }, | |
{ L("0xe+0"), L("%g%c"), 2, '+' }, | |
{ L("0x.e+0"), L("%g%c"), 2, '+' }, | |
}; | |
static int | |
do_test (void) | |
{ | |
double d[6]; | |
long l[6]; | |
int i, j; | |
int tst_locale; | |
int result = 0; | |
tst_locale = 1; | |
if (tst_locale) | |
if (setlocale (LC_ALL, "en_US.ISO-8859-1") == NULL) | |
{ | |
puts ("Failed to set en_US locale, skipping locale related tests"); | |
tst_locale = 0; | |
} | |
for (i = 0; i < 4; ++i) | |
{ | |
if (SSCANF (str_double[i], L("%11lf%11lf%11lf%11lf%11lf%11lf"), | |
&d[0], &d[1], &d[2], &d[3], &d[4], &d[5]) != 6) | |
{ | |
printf ("Double sscanf test %d wrong number of " | |
"assigned inputs\n", i); | |
result = 1; | |
} | |
else | |
for (j = 0; j < 6; ++j) | |
if (d[j] != val_double[6 * i + j]) | |
{ | |
printf ("Double sscanf test %d failed (%g instead of %g)\n", | |
i, d[j], val_double[6 * i + j]); | |
result = 1; | |
break; | |
} | |
} | |
for (i = 0; i < 4; ++i) | |
{ | |
if (SSCANF (str_long[i], fmt_long[i], | |
&l[0], &l[1], &l[2], &l[3], &l[4], &l[5]) != 6) | |
{ | |
printf ("Integer sscanf test %d wrong number of " | |
"assigned inputs\n", i); | |
result = 1; | |
} | |
else | |
for (j = 0; j < 6; ++j) | |
if (l[j] != val_long[j]) | |
{ | |
printf ("Integer sscanf test %d failed (%ld instead %ld)\n", | |
i, l[j], val_long[j]); | |
result = 1; | |
break; | |
} | |
if (! tst_locale) | |
break; | |
} | |
for (i = 0; i < sizeof (int_tests) / sizeof (int_tests[0]); ++i) | |
{ | |
long dummy; | |
int ret; | |
if ((ret = SSCANF (int_tests[i].str, int_tests[i].fmt, | |
&dummy)) != int_tests[i].retval) | |
{ | |
printf ("int_tests[%d] returned %d != %d\n", | |
i, ret, int_tests[i].retval); | |
result = 1; | |
} | |
} | |
for (i = 0; i < sizeof (double_tests) / sizeof (double_tests[0]); ++i) | |
{ | |
double dummy; | |
int ret; | |
if ((ret = SSCANF (double_tests[i].str, double_tests[i].fmt, | |
&dummy)) != double_tests[i].retval) | |
{ | |
printf ("double_tests[%d] returned %d != %d\n", | |
i, ret, double_tests[i].retval); | |
result = 1; | |
} | |
} | |
for (i = 0; i < sizeof (double_tests2) / sizeof (double_tests2[0]); ++i) | |
{ | |
double dummy; | |
int ret; | |
char c = 0; | |
if ((ret = SSCANF (double_tests2[i].str, double_tests2[i].fmt, | |
&dummy, &c)) != double_tests2[i].retval) | |
{ | |
printf ("double_tests2[%d] returned %d != %d\n", | |
i, ret, double_tests2[i].retval); | |
result = 1; | |
} | |
else if (ret == 2 && c != double_tests2[i].residual) | |
{ | |
printf ("double_tests2[%d] stopped at '%c' != '%c'\n", | |
i, c, double_tests2[i].residual); | |
result = 1; | |
} | |
} | |
/* BZ #16618 | |
The test will segfault during SSCANF if the buffer overflow | |
is not fixed. The size of `s` is such that it forces the use | |
of malloc internally and this triggers the incorrect computation. | |
Thus the value for SIZE is arbitrariy high enough that malloc | |
is used. */ | |
{ | |
#define SIZE 131072 | |
CHAR *s = malloc ((SIZE + 1) * sizeof (*s)); | |
if (s == NULL) | |
abort (); | |
for (size_t i = 0; i < SIZE; i++) | |
s[i] = L('0'); | |
s[SIZE] = L('\0'); | |
int i = 42; | |
/* Scan multi-digit zero into `i`. */ | |
if (SSCANF (s, L("%d"), &i) != 1) | |
{ | |
printf ("FAIL: bug16618: SSCANF did not read one input item.\n"); | |
result = 1; | |
} | |
if (i != 0) | |
{ | |
printf ("FAIL: bug16618: Value of `i` was not zero as expected.\n"); | |
result = 1; | |
} | |
free (s); | |
if (result != 1) | |
printf ("PASS: bug16618: Did not crash.\n"); | |
#undef SIZE | |
} | |
return result; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |