148 lines
5.4 KiB
C
148 lines
5.4 KiB
C
/* ****************************************************************************
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* link/seven_fs/delete.c -- delete an element from a Protocol 7.00 filesystem.
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* Copyright (C) 2019 Alan "Lailouezzz" Le Bouder <alanlebouder@gmail.com>
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*
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* This file is part of libcasio.
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* libcasio 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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* libcasio 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 libcasio; if not, see <http://www.gnu.org/licenses/>.
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* ************************************************************************* */
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#include "seven_fs.h"
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/**
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* casio_sevenfs_list:
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* List all files/directories from a Protocol 7.00 filesystem.
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*
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* @arg cookie the cookie.
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* @arg path the path.
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* @arg callback the callback list function.
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* @arg cbcookie the callback cookie.
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* @return the error code (0 if ok).
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*/
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int CASIO_EXPORT casio_sevenfs_list(sevenfs_cookie_t *cookie, sevenfs_path_t *path,
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casio_fs_list_func_t *callback, void *cbcookie)
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{
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int err; casio_link_t *handle = cookie;
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const char *dev;
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/* Make the vars. */
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dev = &path->sevenfs_path_data[path->sevenfs_path_dev];
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/* send command packet */
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msg((ll_info, "Sending the list command"));
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if((err = casio_seven_send_cmdfls_reqallinfo(handle, dev))) {
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msg((ll_fatal, "Couldn't send file transfer request/didn't receive answer"));
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return (err);
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} else if (response.casio_seven_packet_type == casio_seven_type_nak
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&& response.casio_seven_packet_code == casio_seven_err_other) {
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msg((ll_fatal, "Invalid filesystem"));
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return (casio_error_device); // FIXME : unsupported device error
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} else if (response.casio_seven_packet_type != casio_seven_type_ack) {
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msg((ll_fatal, "Didn't receive ack or known error..."));
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return (casio_error_unknown);
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}
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/* swap roles */
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msg((ll_info, "Sending roleswap"));
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if((err = casio_seven_send_roleswp(handle))) {
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msg((ll_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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while(1) {
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/* check answer */
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char *dir, *filename, *cdev; unsigned int fs, ldir, lfilename;
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casio_pathnode_t *fnode = NULL;
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casio_stat_t fstat;
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switch (response.casio_seven_packet_type)
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{
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/* - If is roleswap, we have finished our job here - */
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case casio_seven_type_swp:
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return (0);
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break;
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/* - If is command, should be another file info - */
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case casio_seven_type_cmd:
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/* Check args */
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dir = response.casio_seven_packet_args[0];
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filename = response.casio_seven_packet_args[1];
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cdev = response.casio_seven_packet_args[4];
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fs = response.casio_seven_packet_filesize;
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/* Device root should not be sent */
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if(!dir && !filename) continue;
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/* Create node and stat */
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ldir = dir ? strlen(dir) : 0;
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lfilename = filename ? strlen(filename) : 0;
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if(dir && filename) {
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} else {
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casio_make_pathnode(&fnode, 1);
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}
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if(dir && filename) {
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/* Create node size 2 */
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casio_make_pathnode(&fnode, 2);
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casio_make_pathnode(&fnode->casio_pathnode_next, 1);
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/* Dir node */
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memcpy(&fnode->casio_pathnode_name, dir, ldir);
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fnode->casio_pathnode_name[ldir] = '\0';
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/* File node */
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memcpy(&fnode->casio_pathnode_next->casio_pathnode_name, filename, lfilename);
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fnode->casio_pathnode_next->casio_pathnode_name[lfilename] = '\0';
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} else if(filename && !dir) {
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/* Create node size 1 */
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casio_make_pathnode(&fnode, 1);
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/* File node */
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memcpy(&fnode->casio_pathnode_name, filename, lfilename);
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fnode->casio_pathnode_name[lfilename] = '\0';
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} else if(dir && !filename) {
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/* Create node size 1 */
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casio_make_pathnode(&fnode, 1);
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/* Dir node */
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memcpy(&fnode->casio_pathnode_name, dir, ldir);
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fnode->casio_pathnode_name[ldir] = '\0';
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}
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/* Call callback and free node */
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(*callback)(cbcookie, fnode, &fstat);
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if(dir && filename) {
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casio_free_pathnode(fnode->casio_pathnode_next);
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fnode->casio_pathnode_next = NULL;
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}
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casio_free_pathnode(fnode);
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fnode = NULL;
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break;
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default:
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// Unknown
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msg((ll_fatal, "Error packet type unknown"));
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return (casio_error_unknown);
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break;
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}
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/* send ack to continue */
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msg((ll_info, "Sending ack to continue"));
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if ((err = casio_seven_send_ack(handle, 1))) {
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msg((ll_fatal, "Unable to send ack/receive answer!"));
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return (err);
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}
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}
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return (0);
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} |