89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/* ****************************************************************************
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* fs/builtin/posix/frompath.c -- POSIX path to libcasio path.
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* Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
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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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#define PATH_FTW
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#include "posix.h"
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#ifndef LIBCASIO_DISABLED_POSIX_FS
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/**
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* casio_make_posix_path_array:
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* Make a path array from a POSIX path.
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*
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* POSIX paths are soooo well done. <3
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*
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* @arg ppath the final path.
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* @arg rawpath the raw POSIX path.
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* @return the error code (0 if ok).
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*/
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int CASIO_EXPORT casio_make_posix_path_array(casio_path_t **ppath,
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const char *rawpath)
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{
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int err = casio_error_alloc;
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casio_path_t *path = NULL;
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casio_pathnode_t **node = NULL;
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casio_pathnode_t *localnode = NULL;
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size_t nodelen;
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/* Make and initialize the path structure. */
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*ppath = malloc(sizeof(casio_path_t));
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path = *ppath; if (!path) return (casio_error_alloc);
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path->casio_path_flags = casio_pathflag_alloc | casio_pathflag_rel;
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path->casio_path_device = NULL;
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path->casio_path_nodes = NULL;
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/* Check if it is an absolute path. */
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if (*rawpath == '/') {
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path->casio_path_flags &= ~casio_pathflag_rel;
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rawpath++;
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}
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/* Split the path. */
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node = &path->casio_path_nodes;
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while (rawpath) {
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rawpath += strspn(rawpath, "/");
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if (!rawpath) break;
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/* Get the entry size (to '/' or NUL). */
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nodelen = strcspn(rawpath, "/");
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/* Make the entry. */
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err = casio_make_pathnode(&localnode, nodelen + 1);
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if (err) goto fail;
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memcpy(localnode->casio_pathnode_name, rawpath, nodelen);
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localnode->casio_pathnode_name[nodelen] = 0;
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*node = localnode;
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node = &localnode->casio_pathnode_next;
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/* Iterate. */
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rawpath += nodelen;
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}
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return (0);
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fail:
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while (path->casio_path_nodes) {
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localnode = path->casio_path_nodes;
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path->casio_path_nodes = localnode->casio_pathnode_next;
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free(localnode);
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}
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if (!err) err = casio_error_alloc;
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return (err);
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}
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#endif
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