Return to pts_symlinks.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / strongswan / src / libimcv / pts

Annotation of embedaddon/strongswan/src/libimcv/pts/pts_symlinks.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (C) 2020 Andreas Steffen
        !             3:  * HSR Hochschule fuer Technik Rapperswil
        !             4:  *
        !             5:  * This program is free software; you can redistribute it and/or modify it
        !             6:  * under the terms of the GNU General Public License as published by the
        !             7:  * Free Software Foundation; either version 2 of the License, or (at your
        !             8:  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
        !             9:  *
        !            10:  * This program is distributed in the hope that it will be useful, but
        !            11:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            12:  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
        !            13:  * for more details.
        !            14:  */
        !            15: 
        !            16: #include "pts_symlinks.h"
        !            17: 
        !            18: #include <collections/linked_list.h>
        !            19: #include <utils/debug.h>
        !            20: 
        !            21: typedef struct private_pts_symlinks_t private_pts_symlinks_t;
        !            22: typedef struct entry_t entry_t;
        !            23: 
        !            24: /**
        !            25:  * Private data of a pts_symlinks_t object.
        !            26:  *
        !            27:  */
        !            28: struct private_pts_symlinks_t {
        !            29: 
        !            30:        /**
        !            31:         * Public pts_symlinks_t interface.
        !            32:         */
        !            33:        pts_symlinks_t public;
        !            34: 
        !            35:        /**
        !            36:         * List of symbolic links pointing to directories
        !            37:         */
        !            38:        linked_list_t *list;
        !            39: 
        !            40:        /**
        !            41:         * Reference count
        !            42:         */
        !            43:        refcount_t ref;
        !            44: 
        !            45: };
        !            46: 
        !            47: /**
        !            48:  * Symlink entry
        !            49:  */
        !            50: struct entry_t {
        !            51:        chunk_t symlink;
        !            52:        chunk_t dir;
        !            53: };
        !            54: 
        !            55: /**
        !            56:  * Free an entry_t object
        !            57:  */
        !            58: static void free_entry(entry_t *entry)
        !            59: {
        !            60:        if (entry)
        !            61:        {
        !            62:                free(entry->symlink.ptr);
        !            63:                free(entry->dir.ptr);
        !            64:                free(entry);
        !            65:        }
        !            66: }
        !            67: 
        !            68: METHOD(pts_symlinks_t, get_count, int,
        !            69:        private_pts_symlinks_t *this)
        !            70: {
        !            71:        return this->list->get_count(this->list);
        !            72: }
        !            73: 
        !            74: METHOD(pts_symlinks_t, add, void,
        !            75:        private_pts_symlinks_t *this, chunk_t symlink, chunk_t dir)
        !            76: {
        !            77:        entry_t *entry;
        !            78: 
        !            79:        entry = malloc_thing(entry_t);
        !            80:        entry->symlink = chunk_clone(symlink);
        !            81:        entry->dir = chunk_clone(dir);
        !            82: 
        !            83:        this->list->insert_last(this->list, entry);
        !            84: }
        !            85: 
        !            86: CALLBACK(symlink_filter, bool,
        !            87:        void *null, enumerator_t *orig, va_list args)
        !            88: {
        !            89:        entry_t *entry;
        !            90:        chunk_t *symlink;
        !            91:        chunk_t *dir;
        !            92: 
        !            93:        VA_ARGS_VGET(args, symlink, dir);
        !            94: 
        !            95:        if (orig->enumerate(orig, &entry))
        !            96:        {
        !            97:                *symlink = entry->symlink;
        !            98:                *dir     = entry->dir;
        !            99:                return TRUE;
        !           100:        }
        !           101:        return FALSE;
        !           102: }
        !           103: 
        !           104: METHOD(pts_symlinks_t, create_enumerator, enumerator_t*,
        !           105:        private_pts_symlinks_t *this)
        !           106: {
        !           107:        return enumerator_create_filter(this->list->create_enumerator(this->list),
        !           108:                                                                        symlink_filter, NULL, NULL);
        !           109: }
        !           110: 
        !           111: METHOD(pts_symlinks_t, get_ref, pts_symlinks_t*,
        !           112:        private_pts_symlinks_t *this)
        !           113: {
        !           114:        ref_get(&this->ref);
        !           115:        return &this->public;
        !           116: }
        !           117: 
        !           118: METHOD(pts_symlinks_t, destroy, void,
        !           119:        private_pts_symlinks_t *this)
        !           120: {
        !           121:        if (ref_put(&this->ref))
        !           122:        {
        !           123:                this->list->destroy_function(this->list, (void *)free_entry);
        !           124:                free(this);
        !           125:        }
        !           126: }
        !           127: 
        !           128: /**
        !           129:  * See header
        !           130:  */
        !           131: pts_symlinks_t *pts_symlinks_create()
        !           132: {
        !           133:        private_pts_symlinks_t *this;
        !           134: 
        !           135:        INIT(this,
        !           136:                .public = {
        !           137:                        .get_count = _get_count,
        !           138:                        .add = _add,
        !           139:                        .create_enumerator = _create_enumerator,
        !           140:                        .get_ref = _get_ref,
        !           141:                        .destroy = _destroy,
        !           142:                },
        !           143:                .list = linked_list_create(),
        !           144:                .ref = 1,
        !           145:        );
        !           146: 
        !           147:        return &this->public;
        !           148: }
        !           149: