int main(void) {
char* name = NULL;
int* age = NULL;
name = (char*) calloc(BUFFER, sizeof(char)); // Allocate array using calloc
age = (int*) malloc(sizeof(float)); // Allocate a float using malloc
mem_leak(); // Creates memory leak allocated memory not freed
printf("Enter your name: ");
scanf("%s", name);
printf("Enter your age: ");
scanf("%d", age);
// Arrays are like pointers, print each character of the name
for (int i = 0; i < strlen(name); ++i) { // strlen fail if didn't use calloc!
printf("%c\n", name[i]);
}
// Don't forget to free the memory. Can't free munch don't have pointer!
free(name), free(age);
return 0;
}
int
main(int argc, char**argv)
{
if (argc<2) {
printf("Syntax:");
printf(" %s <test-number> <test-number> <test-number> . . .\r\n", argv[0]);
return -1;
}
if (mallopt(M_CHECK_ACTION, 7) != 1) {
fprintf(stderr, "mallopt() failed");
return(-1);
}
int ctr;
for( ctr=1; ctr < argc; ctr++ )
{
int test_number = atoi(argv[ctr]);
switch (test_number) {
case 1: unintialized_use(); break;
case 2: rw_after_free(); break;
case 3: rw_malloc_overrun(); break;
case 4: rw_bad_stk_location(); break;
case 5: mem_leak(); break;
case 6: test_6(); break;
case 7: memcpy_overlapping_src_dst(); break;
case 8: double_free(); break;
case 9: systemcall_unaddressable_bytes(); break;
case 10: stk_overrun(); break;
case 11: glob_buff_overrun(); break;
default: printf("No test or invalid test specified (only 1--9 are valid).");
return -1;
}
}
return 0;
}
