mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 15:40:19 +00:00
5b32b46ebc
This change has the positive side-effect of causing scanf to *segfault* when a NULL pointer argument is passed to scanf. e.g. sscanf(str, "%d", NULL);
253 lines
8.1 KiB
C++
253 lines
8.1 KiB
C++
/*
|
|
* Copyright (c) 2021, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibTest/TestCase.h>
|
|
|
|
#include <AK/Array.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
typedef long double longdouble;
|
|
typedef long long longlong;
|
|
typedef unsigned long long unsignedlonglong;
|
|
typedef unsigned long unsignedlong;
|
|
typedef char charstar[32];
|
|
|
|
template<typename T>
|
|
constexpr static Array<unsigned char, 32> to_value_t(T x)
|
|
{
|
|
// The endianness doesn't really matter, since we're going to convert both sides with this anyway.
|
|
union Value {
|
|
u8 v[32];
|
|
T t;
|
|
};
|
|
|
|
auto value = Value { .t = x };
|
|
|
|
return {
|
|
value.v[0],
|
|
value.v[1],
|
|
value.v[2],
|
|
value.v[3],
|
|
value.v[4],
|
|
value.v[5],
|
|
value.v[6],
|
|
value.v[7],
|
|
value.v[8],
|
|
value.v[9],
|
|
value.v[10],
|
|
value.v[11],
|
|
value.v[12],
|
|
value.v[13],
|
|
value.v[14],
|
|
value.v[15],
|
|
value.v[16],
|
|
value.v[17],
|
|
value.v[18],
|
|
value.v[19],
|
|
value.v[20],
|
|
value.v[21],
|
|
value.v[22],
|
|
value.v[23],
|
|
value.v[24],
|
|
value.v[25],
|
|
value.v[26],
|
|
value.v[27],
|
|
value.v[28],
|
|
value.v[29],
|
|
value.v[30],
|
|
value.v[31],
|
|
};
|
|
}
|
|
|
|
template<size_t N>
|
|
constexpr static Array<unsigned char, 32> str_to_value_t(const char (&x)[N])
|
|
{
|
|
Array<unsigned char, 32> value { 0 };
|
|
for (size_t i = 0; i < N; ++i)
|
|
value[i] = x[i];
|
|
return value;
|
|
}
|
|
|
|
struct Argument {
|
|
size_t size;
|
|
void* data;
|
|
};
|
|
|
|
static Array<u8, 32> arg_to_value_t(const Argument& arg)
|
|
{
|
|
if (arg.size == 1)
|
|
return to_value_t(*(u8*)arg.data);
|
|
|
|
if (arg.size == 2)
|
|
return to_value_t(*(u16*)arg.data);
|
|
|
|
if (arg.size == 4)
|
|
return to_value_t(*(u32*)arg.data);
|
|
|
|
if (arg.size == 8)
|
|
return to_value_t(*(u64*)arg.data);
|
|
|
|
if (arg.size == 16) {
|
|
auto& data = *(charstar*)arg.data;
|
|
Array<unsigned char, 32> value { 0 };
|
|
for (size_t i = 0; i < 16; ++i)
|
|
value[i] = data[i];
|
|
return value;
|
|
}
|
|
|
|
if (arg.size == 32) {
|
|
auto& data = *(charstar*)arg.data;
|
|
auto length = strlen(data);
|
|
Array<unsigned char, 32> value { 0 };
|
|
for (size_t i = 0; i < length; ++i)
|
|
value[i] = data[i];
|
|
return value;
|
|
}
|
|
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
|
|
#define DECL_WITH_TYPE(ty) \
|
|
ty _##ty##arg0; \
|
|
ty _##ty##arg1; \
|
|
ty _##ty##arg2; \
|
|
Argument ty##arg0 { sizeof(ty), &_##ty##arg0 }; \
|
|
Argument ty##arg1 { sizeof(ty), &_##ty##arg1 }; \
|
|
Argument ty##arg2 { sizeof(ty), &_##ty##arg2 };
|
|
|
|
DECL_WITH_TYPE(int);
|
|
DECL_WITH_TYPE(unsigned);
|
|
DECL_WITH_TYPE(long);
|
|
DECL_WITH_TYPE(longlong);
|
|
DECL_WITH_TYPE(float);
|
|
DECL_WITH_TYPE(double);
|
|
DECL_WITH_TYPE(longdouble);
|
|
DECL_WITH_TYPE(unsignedlong);
|
|
DECL_WITH_TYPE(unsignedlonglong);
|
|
|
|
#undef DECL_WITH_TYPE
|
|
|
|
charstar _charstararg0;
|
|
charstar _charstararg1;
|
|
charstar _charstararg2;
|
|
Argument charstararg0 { sizeof(charstar), &_charstararg0[0] };
|
|
Argument charstararg1 { sizeof(charstar), &_charstararg1[0] };
|
|
Argument charstararg2 { sizeof(charstar), &_charstararg2[0] };
|
|
|
|
struct TestSuite {
|
|
const char* format;
|
|
const char* input;
|
|
int expected_return_value;
|
|
size_t argument_count;
|
|
Argument arguments[8];
|
|
Array<unsigned char, 32> expected_values[8]; // 32 bytes for each argument's value.
|
|
};
|
|
|
|
const TestSuite test_suites[] {
|
|
{ "%d", "", 0, 0, {}, {} },
|
|
{ "%x", "0x519", 1, 1, { unsignedarg0 }, { to_value_t(0x519) } },
|
|
{ "%x", "0x51g", 1, 1, { unsignedarg0 }, { to_value_t(0x51u) } },
|
|
{ "%06x", "0xabcdef", 1, 1, { unsignedarg0 }, { to_value_t(0xabcdefu) } },
|
|
{ "%X", "0xCAFEBABE", 1, 1, { unsignedarg0 }, { to_value_t(0xcafebabe) } },
|
|
{ "%04X", "0x5E4E", 1, 1, { unsignedarg0 }, { to_value_t(0x5e4e) } },
|
|
{ "%X", "0x51Eg", 1, 1, { unsignedarg0 }, { to_value_t(0x51e) } },
|
|
{ "\"%%%d#", "\"%42#", 1, 1, { intarg0 }, { to_value_t(42) } },
|
|
{ " %d", "42", 1, 1, { intarg0 }, { to_value_t(42) } },
|
|
{ "%d", " 42", 1, 1, { intarg0 }, { to_value_t(42) } },
|
|
{ "%ld", "42", 1, 1, { longarg0 }, { to_value_t(42l) } },
|
|
{ "%lld", "42", 1, 1, { longlongarg0 }, { to_value_t(42ll) } },
|
|
{ "%f", "42", 1, 1, { floatarg0 }, { to_value_t(42.0f) } },
|
|
{ "%lf", "42", 1, 1, { doublearg0 }, { to_value_t(42.0) } },
|
|
{ "%s", "42", 1, 1, { charstararg0 }, { str_to_value_t("42") } },
|
|
{ "%d%s", "42yoinks", 2, 2, { intarg0, charstararg0 }, { to_value_t(42), str_to_value_t("yoinks") } },
|
|
{ "%[^\n]", "aaaa\n", 1, 1, { charstararg0 }, { str_to_value_t("aaaa") } },
|
|
{ "%u.%u.%u", "3.19", 2, 3, { unsignedarg0, unsignedarg1, unsignedarg2 }, { to_value_t(3u), to_value_t(19u) } },
|
|
// Failing test case from previous impl:
|
|
{ "SSH-%d.%d-%[^\n]\n", "SSH-2.0-OpenSSH_8.2p1 Ubuntu-4ubuntu0.1\n", 3, 3, { intarg0, intarg1, charstararg0 }, { to_value_t(2), to_value_t(0), str_to_value_t("OpenSSH_8.2p1 Ubuntu-4ubuntu0.1") } },
|
|
// GCC failure tests
|
|
{ "%d.%d.%d", "10.2.0", 3, 3, { intarg0, intarg1, intarg2 }, { to_value_t(10), to_value_t(2), to_value_t(0) } },
|
|
{ "%lu", "3054 ", 1, 1, { unsignedlongarg0 }, { to_value_t(3054ul) } },
|
|
// "actual" long long and unsigned long long, from #6096
|
|
// Note: '9223372036854775806' is the max value for 'long long'.
|
|
{ "%lld", "9223372036854775805", 1, 1, { longlongarg0 }, { to_value_t(9223372036854775805LL) } },
|
|
{ "%llu", "9223372036854775810", 1, 1, { unsignedlonglongarg0 }, { to_value_t(9223372036854775810ULL) } },
|
|
{ "%n", "", 0, 1, { intarg0 }, { to_value_t(0) } },
|
|
{ "%d %n", "1 a", 1, 2, { intarg0, intarg1 }, { to_value_t(1), to_value_t(2) } },
|
|
{ "%*d", " 42", 0, 0, {}, {} },
|
|
{ "%d%*1[:/]%d", "24/7", 2, 2, { intarg0, intarg1 }, { to_value_t(24), to_value_t(7) } },
|
|
};
|
|
|
|
bool g_any_failed = false;
|
|
|
|
static bool check_value_conformance(const TestSuite& test)
|
|
{
|
|
bool fail = false;
|
|
for (size_t i = 0; i < test.argument_count; ++i) {
|
|
auto& arg = test.arguments[i];
|
|
auto arg_value = arg_to_value_t(arg);
|
|
auto& value = test.expected_values[i];
|
|
if (arg_value != value) {
|
|
auto arg_ptr = (const u32*)arg_value.data();
|
|
auto value_ptr = (const u32*)value.data();
|
|
printf(" value %zu FAIL,\n", i);
|
|
printf(" expected %08x%08x%08x%08x%08x%08x%08x%08x\n",
|
|
value_ptr[0], value_ptr[1], value_ptr[2], value_ptr[3],
|
|
value_ptr[4], value_ptr[5], value_ptr[6], value_ptr[7]);
|
|
printf(" but got %08x%08x%08x%08x%08x%08x%08x%08x\n",
|
|
arg_ptr[0], arg_ptr[1], arg_ptr[2], arg_ptr[3],
|
|
arg_ptr[4], arg_ptr[5], arg_ptr[6], arg_ptr[7]);
|
|
fail = true;
|
|
} else {
|
|
printf(" value %zu PASS\n", i);
|
|
}
|
|
}
|
|
|
|
return !fail;
|
|
}
|
|
|
|
static void do_one_test(const TestSuite& test)
|
|
{
|
|
printf("Testing '%s' against '%s'...\n", test.input, test.format);
|
|
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wformat-nonliteral"
|
|
auto rc = sscanf(test.input, test.format,
|
|
test.arguments[0].data, test.arguments[1].data, test.arguments[2].data, test.arguments[3].data,
|
|
test.arguments[4].data, test.arguments[5].data, test.arguments[6].data, test.arguments[7].data);
|
|
#pragma GCC diagnostic pop
|
|
|
|
bool overall = true;
|
|
printf(" return value...\n");
|
|
if (rc != test.expected_return_value) {
|
|
printf(" return value FAIL, expected %d but got %d\n", test.expected_return_value, rc);
|
|
overall = false;
|
|
} else {
|
|
printf(" return value PASS\n");
|
|
}
|
|
|
|
printf(" read values...\n");
|
|
if (check_value_conformance(test)) {
|
|
printf(" read values PASS\n");
|
|
} else {
|
|
printf(" read values FAIL\n");
|
|
overall = false;
|
|
}
|
|
|
|
if (overall)
|
|
printf(" overall PASS\n");
|
|
else
|
|
printf(" overall FAIL\n");
|
|
|
|
VERIFY(overall);
|
|
}
|
|
|
|
TEST_CASE(scanf)
|
|
{
|
|
for (auto& test : test_suites)
|
|
do_one_test(test);
|
|
}
|