121 lines
3.9 KiB
C
121 lines
3.9 KiB
C
/* *****************************************************************************
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* usage/mcs/send.c -- send a file to 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_send:
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* Send a file.
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*
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* @arg handle the libp7 handle.
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* @arg file the file to send.
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* @arg overwrite if no confirmation callback, should overwrite or not.
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* @arg confirm if file exists and this callback is not NULL,
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* call it. If answer is 1, overwrite, otherwise, not.
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* @arg disp the progression display callback.
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* @return the libp7 error (0 if ok).
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*/
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p7_define_ufunc(p7_mcs_send, p7_attrs_mcs_send,
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p7_handle_t *handle, g1m_mcsfile_t *file,
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int overwrite, p7_confirm_t *confirm, p7_disp_t *disp)
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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_seven(handle);
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chk_active(handle);
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chk_head(&file->head);
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/* choose overwrite mode */
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p7_seven_ow_t owmode;
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if (confirm || !overwrite) owmode = p7_seven_ow_confirm;
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else owmode = p7_seven_ow_force;
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/* send command */
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log_info("sending command");
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if ((err = p7_send_cmdmcs_sendfile(handle, owmode, file))) {
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log_fatal("couldn't send file transfer pakcet/didn't receive answer");
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return (err);
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} else if (response.p7_seven_packet_type != p7_seven_type_ack
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&& response.p7_seven_packet_type != p7_seven_type_error) {
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log_fatal("file transfer answer was unknown");
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return (p7_error_unknown);
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}
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/* check what happened if it is an error packet */
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if (response.p7_seven_packet_type == p7_seven_type_error)
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switch (response.p7_seven_packet_code) {
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/* file exists, confirm or not */
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case p7_seven_err_overwrite:
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log_info("calc wanted overwrite confirmation");
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/* check whether to ask */
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if ((confirm || overwrite) && (!confirm || (*confirm)())) {
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/* confirm! */
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log_info("sending yes to overwrite confirmation");
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if ((err = p7_seven_confirm_ow(handle)))
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return (err);
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else if (response.p7_seven_packet_type != p7_seven_type_ack) {
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log_fatal("response packet wasn't ack");
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return (p7_error_unknown);
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}
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} else {
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/* nope, don't want to */
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log_info("sending no to overwrite confirmation");
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if ((err = p7_seven_deny_ow(handle)))
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return (err);
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else if (response.p7_seven_packet_type != p7_seven_type_ack) {
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log_fatal("response packet wasn't ack");
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return (p7_error_unknown);
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}
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/* we have denied */
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return (p7_error_denied_overwrite);
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}
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break;
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/* impossible overwrite */
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case p7_seven_err_dont_overwrite:
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case p7_seven_err_other:
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log_error("overwrite impossible");
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err = p7_error_unsupported_device;
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return (err);
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/* memory full */
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case p7_seven_err_fullmem:
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log_error("distant memory is full");
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return (p7_error_fullmem);
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}
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/* send the file content */
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p7_seven_data_cookie_t bcookie;
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g1m_buffer_t buffer = {
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.cookie = &bcookie,
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.announce = (g1m_buffer_announce_t)&p7_seven_data_prepare,
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.write = (g1m_buffer_write_t)&p7_seven_data_write
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};
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int libg1m_err = g1m_encode_mcsfile(file, &buffer);
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if (libg1m_err == g1m_error_nowrite)
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return (bcookie.p7err);
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else return (p7_error_unknown); /* FIXME */
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/* no error! */
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return (0);
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}
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