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Ensure that parsed file size isn't negative.

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This commit is contained in:
levlam 2022-06-08 03:55:27 +03:00
parent 848093c0c4
commit 09a39b4cb3
1 changed files with 9 additions and 0 deletions
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9
td/telegram/files/FileManager.hpp
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@ -168,6 +168,9 @@ FileId FileManager::parse_file(ParserT &parser) {
int32 int_size;
parse(int_size, parser);
stored_size = int_size;
if (stored_size < 0) {
stored_size += static_cast<int64>(1) << 32;
}
}
int64 size = has_expected_size ? 0 : stored_size;
int64 expected_size = has_expected_size ? stored_size : 0;
@ -190,6 +193,9 @@ FileId FileManager::parse_file(ParserT &parser) {
int32 int_size;
parse(int_size, parser);
size = int_size;
if (size < 0) {
size += static_cast<int64>(1) << 32;
}
}
int32 get_by_hash;
parse(get_by_hash, parser);
@ -215,6 +221,9 @@ FileId FileManager::parse_file(ParserT &parser) {
int32 int_size;
parse(int_size, parser);
expected_size = int_size;
if (expected_size < 0) {
expected_size += static_cast<int64>(1) << 32;
}
}
int32 zero;
parse(zero, parser);