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git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@978 626c5289-ae23-0410-ae9c-e8d60b6d4f22

SWIG/Tools/WAD/Test/debug.c

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