libetpan - fdik
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/*
* libEtPan! -- a mail stuff library
*
* Copyright (C) 2001, 2005 - DINH Viet Hoa
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the libEtPan! project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "mailimap_compress.h"
#include "mailimap.h"
#include "mailimap_sender.h"
#include "mailstream_compress.h"
int mailimap_compress(mailimap * session)
{
struct mailimap_response * response;
int r;
int res;
int error_code;
mailstream_low * compressed_stream;
mailstream_low * low;
r = mailimap_send_current_tag(session);
if (r != MAILIMAP_NO_ERROR) {
res = r;
goto err;
}
r = mailimap_token_send(session->imap_stream, "COMPRESS DEFLATE");
if (r != MAILIMAP_NO_ERROR) {
res = r;
goto err;
}
r = mailimap_crlf_send(session->imap_stream);
if (r != MAILIMAP_NO_ERROR) {
res = r;
goto err;
}
if (mailstream_flush(session->imap_stream) == -1) {
res = MAILIMAP_ERROR_STREAM;
goto err;
}
if (mailimap_read_line(session) == NULL) {
res = MAILIMAP_ERROR_STREAM;
goto err;
}
r = mailimap_parse_response(session, &response);
if (r != MAILIMAP_NO_ERROR) {
res = r;
goto err;
}
error_code = response->rsp_resp_done->rsp_data.rsp_tagged->rsp_cond_state->rsp_type;
mailimap_response_free(response);
if (error_code != MAILIMAP_RESP_COND_STATE_OK) {
res = MAILIMAP_ERROR_EXTENSION;
goto err;
}
low = mailstream_get_low(session->imap_stream);
compressed_stream = mailstream_low_compress_open(low);
if (compressed_stream == NULL) {
res = MAILIMAP_ERROR_STREAM;
goto err;
}
mailstream_set_low(session->imap_stream, compressed_stream);
return MAILIMAP_NO_ERROR;
err:
return res;
}