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/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#include <stdio.h>
#include <stdlib.h>
void exit_bo_good_unreachable_bad() {
int arr[1];
exit(1);
// unreachable so no buffer overrun
arr[42] = 42;
}
void fgetc_m1_bad(FILE* f) {
int arr[10000];
int c = fgetc(f);
arr[c] = 42;
}
void fgetc_255_bad(FILE* f) {
int arr[255];
int c = fgetc(f);
if (c >= 0) {
arr[c] = 42;
}
}
void fgetc_256_good(FILE* f) {
int arr[256];
int c = fgetc(f);
if (c >= 0) {
arr[c] = 42;
}
}
void fgetc_256_bad(FILE* f) {
int arr[256];
int c = fgetc(f);
arr[c + 1] = 42;
}
void fgetc_257_good(FILE* f) {
int arr[257];
int c = fgetc(f);
arr[c + 1] = 42;
}
void memcpy_bad1() {
int arr1[10];
int arr2[20];
memcpy(arr1, arr2, 44);
}
void memcpy_bad2() {
int arr1[10];
int arr2[20];
memcpy(arr2, arr1, 44);
}
void memcpy_bad3() {
int arr1[10];
int arr2[20];
memcpy(arr1, arr2, -1);
}
void memcpy_bad4() {
int src[1];
int buff[1];
int* dst = &buff[0];
memcpy(dst, src, sizeof(dst));
}
void memcpy_good1() {
int arr1[10];
int arr2[20];
memcpy(arr2, arr1, 40);
}
void memcpy_good2() {
int arr1[10];
int arr2[20];
memcpy(arr2, arr1, 0);
}
void memcpy_good3() {
int arr1[10];
int arr2[20];
memcpy(arr2, arr1, 20);
}
void memcpy_good4() {
int src[3];
int dst[3];
memcpy(dst, src, sizeof(dst));
}
void memcpy_len_Good(size_t len) {
char dst[len];
char src[len];
memcpy(dst, src, len);
}
void call_memcpy_len1_Good() { memcpy_len_Good(40); }
extern size_t unknown_uint();
void call_memcpy_len2_Good() {
size_t x = unknown();
memcpy_len_Good(x);
}
void memmove_bad1() {
int arr1[10];
int arr2[20];
memmove(arr1, arr2, 44);
}
void memmove_bad2() {
int arr1[10];
int arr2[20];
memmove(arr2, arr1, 44);
}
void memmove_bad3() {
int arr1[10];
int arr2[20];
memmove(arr1, arr2, -1);
}
void memmove_bad4() {
int src[1];
int buff[1];
int* dst = &buff[0];
memmove(dst, src, sizeof(dst));
}
void memmove_good1() {
int arr1[10];
int arr2[20];
memmove(arr2, arr1, 40);
}
void memmove_good2() {
int arr1[10];
int arr2[20];
memmove(arr2, arr1, 0);
}
void memmove_good3() {
int arr1[10];
int arr2[20];
memmove(arr2, arr1, 20);
}
void memmove_good4() {
int src[3];
int dst[3];
memmove(dst, src, sizeof(dst));
}
void memset_bad1() {
int arr[10];
memset(arr, 0, 44);
}
void memset_bad2() {
int arr[10];
memset(arr, 0, -1);
}
void memset_bad3() {
int arr[1];
int* dst = &arr[0];
memset(dst, 0, sizeof(dst));
}
void memset_good1() {
int arr[10];
memset(arr, 0, 40);
}
void memset_good2() {
int arr[10];
memset(arr, 0, 0);
}
void memset_good3() {
int arr[10];
memset(arr, 0, 20);
}
void memset_good4() {
int arr[10];
memset(arr, 0, sizeof(arr));
}
void strncpy_bad1() {
int arr1[10];
int arr2[20];
strncpy(arr1, arr2, 44);
}
void strncpy_bad2() {
int arr1[10];
int arr2[20];
strncpy(arr2, arr1, 44);
}
void strncpy_bad3() {
int arr1[10];
int arr2[20];
strncpy(arr1, arr2, -1);
}
void strncpy_bad4() {
int src[1];
int buff[1];
int* dst = &buff[0];
strncpy(dst, src, sizeof(dst));
}
void strncpy_good1() {
int arr1[10];
int arr2[20];
strncpy(arr2, arr1, 40);
}
void strncpy_good2() {
int arr1[10];
int arr2[20];
strncpy(arr2, arr1, 0);
}
void strncpy_good3() {
int arr1[10];
int arr2[20];
strncpy(arr2, arr1, 20);
}
void strncpy_good4() {
int src[3];
int dst[3];
strncpy(dst, src, sizeof(dst));
}
void strncpy_good5_FP() {
char src[5] = "test";
char dst[5];
strncpy(dst, src, 10);
}
void memcpy_contents_Good() {
int src[3] = {5, 5, 5};
int dst[3];
memcpy(dst, src, sizeof(dst));
int a[6];
a[dst[0]] = 0;
}
void memcpy_contents_Bad() {
int src[3] = {5, 5, 5};
int dst[3];
memcpy(dst, src, sizeof(dst));
int a[5];
a[dst[0]] = 0;
}
void memcpy_integer_Good() {
int src = 5;
int dst;
memcpy(&dst, &src, sizeof(int));
int a[10];
a[dst] = 0;
}
void memcpy_integer_Bad() {
int src = 5;
int dst;
memcpy(&dst, &src, sizeof(int));
int a[5];
a[dst] = 0;
}
void strncpy_contents_Good() {
char src[5] = "test";
char dst[10];
strncpy(dst, src, 5);
int a[5];
a[strlen(dst)] = 0;
}
void strncpy_contents_Bad() {
char src[5] = "test";
char dst[10];
strncpy(dst, src, 5);
int a[4];
a[strlen(dst)] = 0;
}
void strncpy_no_null_1_Bad_FN() {
char src[5] = "test";
src[4] = 'a';
char dst[10];
strncpy(dst, src, 5); // [dst] may not have null character.
int a[10];
a[strlen(dst)] = 0;
}
void strncpy_no_null_2_Bad() {
char src[5] = "test";
src[4] = 'a';
char dst[10];
strncpy(dst, src, 5); // [dst] may not have null character.
int a[5];
a[strlen(dst)] = 0;
}
void strncpy_no_null_3_Bad_FN() {
char src[15] = "test.test.test";
char dst[10];
strncpy(dst, src, 10); // [dst] does not have null character.
int a[20];
a[strlen(dst)] = 0;
}
void strncpy_no_null_4_Bad() {
char src[15] = "test.test.test";
char dst[10];
strncpy(dst, src, 10); // [dst] does not have null character.
int a[10];
a[strlen(dst)] = 0;
}
void strndup_1_Good() {
char s1[] = "Hello Infer!";
int len = strlen(s1);
char* s2 = strndup(s1, len);
for (int i = 0; i < len; i++) {
s2[i] = 'a';
}
}
void strndup_1_Bad() {
char s1[] = "Hello Infer!";
int len = 100;
char* s2 = strndup(s1, len);
for (int i = 0; i < len; i++) {
s2[i] = 'a';
}
}
void strndup_2_Good() {
char s1[] = "Hello Infer!";
int len = strlen(s1);
s1[5] = '\0';
char* s2 = strndup(s1, len);
for (int i = 0; i < strlen(s2); i++) {
s2[i] = 'a';
}
}
void strndup_2_Bad() {
char s1[] = "Hello Infer!";
int len = strlen(s1);
s1[5] = '\0';
char* s2 = strndup(s1, len);
for (int i = 0; i < len; i++) {
s2[i] = 'a';
}
}
void strndup_3_Good() {
int size = unknown();
if (size >= 10) {
char* s1 = (char*)malloc(sizeof(char) * size);
s1[5] = '\0';
char* s2 = strndup(s1, size - 1);
for (int i = 0; i < strlen(s2); i++) {
s2[i] = 'a';
}
}
}
void strndup_3_Bad() {
int size = unknown();
if (size >= 10) {
char* s1 = (char*)malloc(sizeof(char) * size);
s1[5] = '\0';
char* s2 = strndup(s1, size - 1);
for (int i = 0; i < size - 1; i++) {
s2[i] = 'a';
}
}
}
void strcpy_Good() {
char src[5] = "test";
char dst[10];
strcpy(dst, src);
}
void strcpy_Bad() {
char src[5] = "test";
char dst[4];
strcpy(dst, src);
}
void strcpy_literal_string_Good() {
char dst[10];
strcpy(dst, "test");
}
void strcpy_literal_string_Bad() {
char dst[4];
strcpy(dst, "test");
}
void strcpy_strlen_Good() {
char src[5] = "test";
char dst[10];
strcpy(dst, src);
int a[5];
a[strlen(dst)] = 0;
}
void strcpy_strlen_Bad() {
char src[5] = "test";
char dst[10];
strcpy(dst, src);
int a[4];
a[strlen(dst)] = 0;
}
void strcpy_contents_Good() {
char src[5] = "aaaa";
char dst[5];
strcpy(dst, src);
char c = dst[0];
if (c >= 'a') {
int a[5];
a[c - 'a' + 4] = 0;
}
}
void strcpy_contents_Bad() {
char src[5] = "aaaa";
char dst[5];
strcpy(dst, src);
char c = dst[0];
if (c >= 'a') {
int a[5];
a[c - 'a' + 5] = 0;
}
}
void strcpy_no_null_Bad() {
char src[5] = "test";
src[4] = 'a';
char dst[10];
strcpy(dst, src);
}
void strcat_Good() {
char str[8];
strcpy(str, "abc");
strcat(str, "defg");
}
void strcat_Bad() {
char str[8];
strcpy(str, "abc");
strcat(str, "defgh");
}
void strcat_strlen_Good() {
char str[8];
strcpy(str, "abc");
strcat(str, "defg");
int a[8];
a[strlen(str)] = 0;
}
void strcat_strlen_Bad() {
char str[20];
strcpy(str, "abc");
strcat(str, "defgh");
int a[8];
a[strlen(str)] = 0;
}