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fix(receiver): charge per-entry DirTimeList cost; cap client --skip-compress

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TapTap
2026-09-13 01:18:54 +02:00
parent 76eeba1773
commit ea2f76cd7a
3 changed files with 12 additions and 3 deletions
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src/shared/file_receive.c
+6 -2
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@@ -2274,7 +2274,11 @@ bool dir_time_list_add(DirTimeList* list, const char* wire_path, const FileMetad
touching the list, leaving it exactly as it was (the caller fails the
transfer, which becomes a clean protocol error). */
size_t path_len = strlen(wire_path);
if (list->count >= MAX_DIR_TIME_ENTRIES || path_len > MAX_DIR_TIME_BYTES - list->bytes)
/* Charge the whole per-entry cost (path copy + pointer slot + metadata
struct), not just the path, so the array growth is bounded by the same
cumulative budget. */
size_t entry_cost = path_len + sizeof(FileMetadata) + sizeof(char*);
if (list->count >= MAX_DIR_TIME_ENTRIES || entry_cost > MAX_DIR_TIME_BYTES - list->bytes)
return false;
if (list->count == list->capacity) {
size_t new_capacity = list->capacity == 0 ? 16 : list->capacity * 2;
@@ -2302,7 +2306,7 @@ bool dir_time_list_add(DirTimeList* list, const char* wire_path, const FileMetad
list->paths[list->count] = copy;
list->entries[list->count] = *metadata;
list->count++;
list->bytes += path_len;
list->bytes += entry_cost;
return true;
}