diff options
Diffstat (limited to 'scripts/update_payload/common.py')
| -rw-r--r-- | scripts/update_payload/common.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/scripts/update_payload/common.py b/scripts/update_payload/common.py index 2beabeac..573fda40 100644 --- a/scripts/update_payload/common.py +++ b/scripts/update_payload/common.py @@ -4,6 +4,8 @@ """Utilities for update payload processing.""" +from __future__ import print_function + import ctypes from error import PayloadError @@ -21,6 +23,8 @@ SIG_ASN1_HEADER = ( '\x00\x04\x20' ) +INPLACE_MINOR_PAYLOAD_VERSION = 1 +SOURCE_MINOR_PAYLOAD_VERSION = 2 # # Payload operation types. @@ -58,9 +62,11 @@ def IntPackingFmtStr(size, is_unsigned): Args: size: the integer size in bytes (2, 4 or 8) is_unsigned: whether it is signed or not + Returns: A format string for packing/unpacking integer values; assumes network byte order (big-endian). + Raises: PayloadError if something is wrong with the arguments. @@ -95,8 +101,10 @@ def Read(file_obj, length, offset=None, hasher=None): from either the beginning (non-negative) or end (negative) of the file. (optional) hasher: a hashing object to pass the read data through (optional) + Returns: A string containing the read data. + Raises: PayloadError if a read error occurred or not enough data was read. @@ -150,6 +158,7 @@ def _ObjNameIter(items, base_name, reverse=False, name_format_func=None): base_name: the base name for all objects reverse: whether iteration should be in reverse order name_format_func: a function to apply to the name string + Yields: An iterator whose i-th invocation returns (items[i], name), where name == base_name + '[i]' (with a formatting function optionally applied to it). |