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Make the header removal compressor complain if the start of a frame doesn't match the pattern it should remove. This will have to be improved later if we decide to allow "lossy removal", but for now it is safer.

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This commit is contained in:
Moritz Bunkus 2005-10-18 11:43:51 +00:00
parent 4b6932b8e9
commit 2496ee620d
1 changed files with 13 additions and 13 deletions
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26
src/common/compression.cpp
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@ -281,20 +281,20 @@ header_removal_compressor_c::compress(memory_cptr &buffer) {
buffer->get_size(), buffer->get_size(),
m_bytes->get_size())); m_bytes->get_size()));
// if (memcmp(buffer->get(), m_bytes->get(), m_bytes->get_size())) { if (memcmp(buffer->get(), m_bytes->get(), m_bytes->get_size())) {
// string b_buffer, b_bytes; string b_buffer, b_bytes;
// int i; int i;
// for (i = 0; m_bytes->get_size() > i; ++i) { for (i = 0; m_bytes->get_size() > i; ++i) {
// b_buffer += mxsprintf(" %02x", buffer->get()[i]); b_buffer += mxsprintf(" %02x", buffer->get()[i]);
// b_bytes += mxsprintf(" %02x", m_bytes->get()[i]); b_bytes += mxsprintf(" %02x", m_bytes->get()[i]);
// } }
// throw compression_error_c(mxsprintf("Header removal compression not " throw compression_error_c(mxsprintf("Header removal compression not "
// "possible because the buffer did not " "possible because the buffer did not "
// "start with the bytes that should be " "start with the bytes that should be "
// "removed. Wanted bytes:%s; found:%s.", "removed. Wanted bytes:%s; found:%s.",
// b_bytes.c_str(), b_buffer.c_str())); b_bytes.c_str(), b_buffer.c_str()));
// } }
memmove(buffer->get(), buffer->get() + m_bytes->get_size(), memmove(buffer->get(), buffer->get() + m_bytes->get_size(),
buffer->get_size() - m_bytes->get_size()); buffer->get_size() - m_bytes->get_size());