diff options
| author | Max Kellermann <max@musicpd.org> | 2021-01-21 16:55:47 +0100 |
|---|---|---|
| committer | Max Kellermann <max@musicpd.org> | 2021-01-21 16:57:38 +0100 |
| commit | 6e33566ceeb7e6c4454e44efd203b2e2fcd10feb (patch) | |
| tree | 434db24d0de7816739aaf8ea65443c8d02628e56 /src/command/FileCommands.cxx | |
| parent | 3b3c1d466d0d3de16697269b72c289d55935402b (diff) | |
client/FileCommands: validate the given offset
Diffstat (limited to 'src/command/FileCommands.cxx')
| -rw-r--r-- | src/command/FileCommands.cxx | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/command/FileCommands.cxx b/src/command/FileCommands.cxx index dc68463aa..4ac239646 100644 --- a/src/command/FileCommands.cxx +++ b/src/command/FileCommands.cxx @@ -205,6 +205,17 @@ read_stream_art(Response &r, const char *uri, size_t offset) const offset_type art_file_size = is->GetSize(); + if (offset >= art_file_size) { + if (offset > art_file_size) { + r.Error(ACK_ERROR_ARG, "Offset too large"); + return CommandResult::ERROR; + } else { + r.Format("size: %" PRIoffset "\n", art_file_size); + r.WriteBinary(nullptr); + return CommandResult::OK; + } + } + uint8_t buffer[Response::MAX_BINARY_SIZE]; size_t read_size; |