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83 lines
1.5 KiB
83 lines
1.5 KiB
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include <stdlib.h>
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void malloc_no_free_bad() { int* p = malloc(sizeof(p)); }
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int* malloc_returned_ok() {
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int* p = malloc(sizeof(p));
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return p;
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}
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void malloc_then_free_ok() {
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int* p = malloc(sizeof(p));
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if (p) {
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*p = 5;
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free(p);
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}
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}
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int* create_p() {
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int* p = malloc(sizeof(p));
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return p;
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}
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void malloc_interproc_no_free_bad() { int* p = create_p(); }
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void malloc_interproc_no_free_bad2() {
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int* p = malloc(sizeof(p));
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int z = 3;
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int y = 4;
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int* q = p;
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}
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void malloc_formal_leak_bad(int* x) { x = (int*)malloc(sizeof(int*)); }
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static void* (*const malloc_func)(size_t) = malloc;
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static void (*const free_func)(void*) = free;
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void* malloc_via_ptr(size_t size) {
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void* ret = NULL;
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if (size <= 0) {
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return NULL;
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}
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ret = malloc_func(size);
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return ret;
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}
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void free_via_ptr(void* x) { free_func(x); }
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void malloc_ptr_leak_bad() { int* p = (int*)malloc_via_ptr(sizeof(int)); }
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void malloc_ptr_no_check_leak_bad() {
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int* p = (int*)malloc_via_ptr(sizeof(int));
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*p = 42;
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}
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void malloc_ptr_free_ok() {
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int* p = (int*)malloc_via_ptr(sizeof(int));
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free(p);
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}
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void malloc_ptr_free_ptr_ok() {
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int* p = (int*)malloc_via_ptr(sizeof(int));
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free_via_ptr(p);
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}
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void alias_ptr_free_FP(int* out, int flag) {
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int* y;
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if (flag) {
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y = (int*)malloc(sizeof(int));
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} else {
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y = out;
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}
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if (y && y != out)
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free(y);
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}
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