5cd99377b5
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@978 626c5289-ae23-0410-ae9c-e8d60b6d4f22
97 lines
1.9 KiB
C
97 lines
1.9 KiB
C
/* -----------------------------------------------------------------------------
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* debug.c
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*
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* This file contains a variety of different programming errors to test with
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* WAD.
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* ----------------------------------------------------------------------------- */
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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/* A simple segmentation fault on an uninitialized pointer */
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int seg_crash() {
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int *a = 0;
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*a = 3;
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return 1;
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}
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/* Blow the process heap */
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int blowheap_crash() {
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int i;
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int *a = (int *) malloc(sizeof(int));
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for (i = 0;; i++) {
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a[i] = i;
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}
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}
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/* Buffer overflow crash on the stack */
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int overflow_crash() {
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int a[512];
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int i;
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for (i = 0; i < 1024; i++) {
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a[i] = i;
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}
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}
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/* A simple bus error. This might fail silently on certain platforms */
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int bus_crash() {
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int b;
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int *a = &b;
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a = (int *) ((int) a | 0x1);
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*a = 3;
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return 1;
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}
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/* An assertion */
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int abort_crash(int n) {
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assert(n > 0);
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return 1;
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}
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/* A math error (maybe) */
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int math_crash(int x, int y) {
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return x/y;
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}
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#ifdef NEED_MAIN
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static const char *usage="\n\
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Usage: debug type\n\
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seg - Fail with an uninitialized pointer.\n\
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bus - Fail with a bus error.\n\
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abort - Fail with an assertion error.\n\
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math - Fail with a math error.\n\
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heap - Blow the process heap.\n\
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overflow - Buffer overflow on the stack.\n\
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";
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int main(int argc, char **argv) {
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int n;
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printf("WAD debug program.\n");
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if (argc < 2) {
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printf("%s\n", usage);
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exit(0);
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}
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if (strcmp(argv[1],"abort") == 0) {
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abort_crash(-4);
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} else if (strcmp(argv[1],"seg") ==0) {
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seg_crash();
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} else if (strcmp(argv[1],"bus") == 0) {
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bus_crash();
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} else if (strcmp(argv[1],"math") == 0) {
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math_crash(3,0);
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} else if (strcmp(argv[1],"heap") == 0) {
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blowheap_crash();
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} else if (strcmp(argv[1],"overflow") == 0) {
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overflow_crash();
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}
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}
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#endif
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