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/*
* Copyright (c) 2017-present, Facebook, Inc.
*
* 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 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));
}