Exemplo n.º 1
0
//----------------------------------------------------------------------
// find_cstring_in_heap
//
// Finds a C string inside one or more currently valid malloc blocks.
//----------------------------------------------------------------------
malloc_match *
find_cstring_in_heap (const char *s, int check_vm_regions)
{
    g_matches.clear();
    if (s == NULL || s[0] == '\0')
    {
        printf ("error: invalid argument (empty cstring)\n");
        return NULL;
    }
    // Setup "info" to look for a malloc block that contains data
    // that is the C string passed in aligned on a 1 byte boundary
    range_contains_data_callback_info_t data_info;
    data_info.type = eDataTypeContainsData;  // Check each block for data
    data_info.data.buffer = (uint8_t *)s;    // What data? The C string passed in
    data_info.data.size = strlen(s);         // How many bytes? The length of the C string
    data_info.data.align = 1;                // Data doesn't need to be aligned, so set the alignment to 1
    data_info.match_count = 0;               // Initialize the match count to zero
    data_info.done = false;                  // Set done to false so searching doesn't stop
    data_info.unique = false;                // Set to true when iterating on the vm_regions
    range_callback_info_t info = { enumerate_range_in_zone, range_info_callback, &data_info, check_vm_regions };
    foreach_zone_in_this_process (&info);
    g_matches.dump();

    return g_matches.data();
}
Exemplo n.º 2
0
//----------------------------------------------------------------------
// find_pointer_in_heap
//
// Finds a pointer value inside one or more currently valid malloc
// blocks.
//----------------------------------------------------------------------
malloc_match *
find_pointer_in_heap (const void * addr, int check_vm_regions)
{
    g_matches.clear();
    // Setup "info" to look for a malloc block that contains data
    // that is the a pointer 
    if (addr)
    {
        range_contains_data_callback_info_t data_info;
        data_info.type = eDataTypeContainsData;      // Check each block for data
        data_info.data.buffer = (uint8_t *)&addr;    // What data? The pointer value passed in
        data_info.data.size = sizeof(addr);          // How many bytes? The byte size of a pointer
        data_info.data.align = sizeof(addr);         // Align to a pointer byte size
        data_info.match_count = 0;                   // Initialize the match count to zero
        data_info.done = false;                      // Set done to false so searching doesn't stop
        data_info.unique = false;                    // Set to true when iterating on the vm_regions
        range_callback_info_t info = { enumerate_range_in_zone, range_info_callback, &data_info, check_vm_regions };
        foreach_zone_in_this_process (&info);
    }

    g_matches.dump();
    return g_matches.data();
}