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// OpenVPN -- An application to securely tunnel IP networks
// over a single port, with support for SSL/TLS-based
// session authentication and key exchange,
// packet encryption, packet authentication, and
// packet compression.
//
// Copyright (C) 2012- OpenVPN Inc.
//
// SPDX-License-Identifier: MPL-2.0 OR AGPL-3.0-only WITH openvpn3-openssl-exception
//
#pragma once
#include <openvpn/buffer/buffer.hpp>
namespace openvpn {
// Iterate over the lines in a buffer by returning
// a sub-buffer for each line. Zero-copy.
class BufferLineIterator
{
public:
BufferLineIterator(const ConstBuffer &buf)
: src(buf)
{
}
// Returns a zero-length buffer at end of iteration
ConstBuffer next()
{
return src.read_alloc_buf(line_len());
}
private:
size_t line_len() const
{
const unsigned char *const data = src.c_data();
size_t i = 0;
while (i < src.size())
if (data[i++] == '\n')
break;
return i;
}
ConstBuffer src;
};
} // namespace openvpn
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