Chain
LIMIT = pwndbg.config.add_param('dereference-limit', 5, 'max number of pointers to dereference in a chain') module-attribute ¶
c = ColorConfig('chain', [ColorParamSpec('arrow', 'normal', 'color of chain formatting (arrow)'), ColorParamSpec('contiguous-marker', 'normal', 'color of chain formatting (contiguous marker)')]) module-attribute ¶
config_arrow_left = theme.add_param('chain-arrow-left', '◂—', 'left arrow of chain formatting') module-attribute ¶
config_arrow_right = theme.add_param('chain-arrow-right', '—▸', 'right arrow of chain formatting') module-attribute ¶
config_contiguous = theme.add_param('chain-contiguous-marker', '...', 'contiguous marker of chain formatting') module-attribute ¶
format(value, limit=LIMIT, code=True, offset=0, hard_stop=None, hard_end=0, safe_linking=False, enhance_string_len=None) ¶
Recursively dereferences an address into string representation, or convert the list representation of address dereferences into string representation.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
value(int|list) | Either the starting address to be sent to get, or the result of get (a list) | required | |
limit(int) | Number of valid pointers | required | |
code(bool) | Hint that indicates the value may be an instruction | required | |
offset(int) | Offset into the address to get the next pointer | required | |
hard_stop(int) | Value to stop on | required | |
hard_end | int | Value to append when hard_stop is reached: null, value of hard stop, a string. | 0 |
safe_linking(bool) | whether this chain use safe-linking | required | |
enhance_string_len(int) | The length of string to display for enhancement of the last pointer | required |
Returns: A string representing pointers of each address and reference Strings format: 0x0804a10 —▸ 0x08061000 ◂— 0x41414141
get(address, limit=LIMIT, offset=0, hard_stop=None, hard_end=0, include_start=True, safe_linking=False) ¶
Recursively dereferences an address. For bare metal, it will stop when the address is not in any of vmmap pages to avoid redundant dereference.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
address(int) | the first address to begin dereferencing | required | |
limit(int) | number of valid pointers | required | |
offset(int) | offset into the address to get the next pointer | required | |
hard_stop(int) | address to stop at | required | |
hard_end | int | value to append when hard_stop is reached | 0 |
include_start(bool) | whether to include starting address or not | required | |
safe_linking(bool) | whether this chain use safe-linking | required |
Returns:
| Type | Description |
|---|---|
List[int] | None | A list representing pointers of each |