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https://git.jami.net/savoirfairelinux/jami-daemon.git
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63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
/*
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* Copyright (C) 2004-2024 Savoir-faire Linux Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <cstdlib>
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#include "lib/gnutls.h"
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#include "lib/sip-fmt.h"
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/*
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* Example that will try to overflow the SDP parser.
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*/
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bool
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mutate_gnutls_record_send(ChanneledMessage& msg)
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{
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static size_t body_repeat = 1;
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SIPFmt sip(msg.data);
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/* Only SIP request */
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if (not sip.isRequest()) {
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return false;
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}
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/* Skip none SDP Content-Type */
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if (not sip.isApplication("media_control+xml")) {
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return false;
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}
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auto body = sip.getBody();
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std::vector<uint8_t> newBody;
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newBody.reserve(body_repeat * body.size());
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for (size_t i=0; i<body_repeat; ++i) {
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for (auto it=body.cbegin(); it!=body.cend(); ++it) {
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newBody.emplace_back(*it);
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}
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}
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sip.swapBody(newBody);
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body_repeat *= 2;
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/* Commit changes! */
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sip.swap(msg.data);
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return true;
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}
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