1474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org/* 2474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org * 4474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org * Use of this source code is governed by a BSD-style license 5474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org * that can be found in the LICENSE file in the root of the source 6474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org * tree. An additional intellectual property rights grant can be found 7474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org * in the file PATENTS. All contributing project authors may 8474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org * be found in the AUTHORS file in the root of the source tree. 9474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org */ 10474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org 11474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org 12474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org/* This code is in the public domain. 13474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org** Version: 1.1 Author: Walt Karas 14474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org*/ 15474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org 16474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org/* The function in this file performs default actions if self-auditing 17474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org** finds heap corruption. Don't rely on this code to handle the 18474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org** case where HMM is being used to implement the malloc and free standard 19474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org** library functions. Rewrite the function if necessary to avoid using 20474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org** I/O and execution termination functions that call malloc or free. 21474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org** In Unix, for example, you would replace the fputs calls with calls 22474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org** to the write system call using file handle number 2. 23474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org*/ 24474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org#include "hmm_intrnl.h" 25474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org#include <stdio.h> 26474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org#include <stdlib.h> 27474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org 28474eb7536515fb785e925cc9375d22817c416851hclam@chromium.orgstatic int entered = 0; 29474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org 30474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org/* Print abort message, file and line. Terminate execution. 31474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org*/ 326fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.orgvoid hmm_dflt_abort(const char *file, const char *line) { 336fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org /* Avoid use of printf(), which is more likely to use heap. */ 34474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org 356fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org if (entered) 36474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org 376fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org /* The standard I/O functions called a heap function and caused 386fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org ** an indirect recursive call to this function. So we'll have 396fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org ** to just exit without printing a message. */ 406fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org while (1); 41474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org 426fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org entered = 1; 43474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org 446fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org fputs("\n_abort - Heap corruption\n" "File: ", stderr); 456fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org fputs(file, stderr); 466fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org fputs(" Line: ", stderr); 476fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org fputs(line, stderr); 486fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org fputs("\n\n", stderr); 496fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org fputs("hmm_dflt_abort: while(1)!!!\n", stderr); 506fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org fflush(stderr); 51474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org 526fefe538d859300e7febe78271828198c10f1b52fgalligan@chromium.org while (1); 53474eb7536515fb785e925cc9375d22817c416851hclam@chromium.org} 54