85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
/* *****************************************************************************
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* mcs/list.c -- list the elements on the main memory.
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* Copyright (C) 2016-2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
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*
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* This file is part of libp7.
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* libp7 is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 3.0 of the License,
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* or (at your option) any later version.
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*
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* libp7 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.
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* See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libp7; if not, see <http://www.gnu.org/licenses/>.
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* ************************************************************************** */
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#include <libp7/internals.h>
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/**
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* p7_mcs_list:
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* List files on the main memory.
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*
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* @arg handle the libp7 handle.
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* @arg callback the callback.
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* @arg cookie something to send to the callback.
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* @return if it worked.
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*/
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int p7_mcs_list(p7_handle_t *handle,
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void (*callback)(void*, const g1m_mcshead_t *head), void *cookie)
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{
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int err;
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/* make checks */
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chk_handle(handle);
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chk_active(handle);
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/* send command packet */
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log_info("sending file transfer request");
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if ((err = p7_send_cmdmcs_reqallinfo(handle))) {
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log_fatal("couldn't send transfer request");
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return (err);
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} else if (response.type != p7_pt_ack) {
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log_fatal("didn't receive ack...");
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return (p7_error_unknown);
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}
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/* swap roles */
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log_info("sending roleswap");
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if ((err = p7_send_roleswp(handle))) {
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log_fatal("couldn't swap roles");
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return (err);
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}
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/* - Note: we are now in passive mode - */
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g1m_mcshead_t head;
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while (1) switch (response.type) {
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/* if answer is roleswap, we are done */
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case p7_pt_roleswp: return (0);
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/* if it is command, should be another file info */
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case p7_pt_cmd:
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/* check args */
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if (g1m_decode_mcsfile_head(&head, response.mcstype,
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(unsigned char*)response.args[2], (unsigned char*)response.args[0],
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(unsigned char*)response.args[1], response.filesize))
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continue;
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(*callback)(cookie, &head);
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/* send ack to continue */
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log_info("sending ack to continue");
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if ((err = p7_send_ack(handle, 1))) {
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log_fatal("unable to send ack");
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return (err);
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}
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break;
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default: /* wtf? */
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log_fatal("wtf?!");
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return (p7_error_unknown);
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}
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}
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