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66 lines
1.3 KiB
66 lines
1.3 KiB
/*
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* Copyright (c) 2015-present, Facebook, Inc.
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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 <errno.h>
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#include <fcntl.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/select.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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struct Person {
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int age;
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int height;
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int weight;
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};
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int simple_null_pointer() {
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struct Person* max = 0;
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return max->age;
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}
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struct Person* Person_create(int age, int height, int weight) {
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struct Person* who = 0;
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return who;
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}
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int get_age(struct Person* who) { return who->age; }
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int null_pointer_interproc() {
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struct Person* joe = Person_create(32, 64, 140);
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return get_age(joe);
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}
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void fileNotClosed() {
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int fd = open("hi.txt", O_WRONLY | O_CREAT | O_TRUNC, 0600);
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if (fd != -1) {
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char buffer[256];
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// We can easily batch that by separating with space
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write(fd, buffer, strlen(buffer));
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}
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}
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void simple_leak() {
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int* p;
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p = (int*)malloc(sizeof(int));
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}
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void common_realloc_leak() {
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int *p, *q;
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p = (int*)malloc(sizeof(int));
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q = (int*)realloc(p, sizeof(int) * 42);
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// if realloc fails, then p becomes unreachable
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if (q != NULL)
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free(q);
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}
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