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Annotation of embedaddon/strongswan/src/libimcv/imv/imv_os_info.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (C) 2014 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 "imv_os_info.h"
        !            17: 
        !            18: typedef struct private_imv_os_info_t private_imv_os_info_t;
        !            19: 
        !            20: /**
        !            21:  * Private data of an imv_os_info_t object.
        !            22:  *
        !            23:  */
        !            24: struct private_imv_os_info_t {
        !            25: 
        !            26:        /**
        !            27:         * Public imv_os_info_t interface.
        !            28:         */
        !            29:        imv_os_info_t public;
        !            30: 
        !            31:        /**
        !            32:         * OS type
        !            33:         */
        !            34:        os_type_t type;
        !            35: 
        !            36:        /**
        !            37:         * OS name
        !            38:         */
        !            39:        chunk_t name;
        !            40: 
        !            41:        /**
        !            42:         * OS version
        !            43:         */
        !            44:        chunk_t version;
        !            45: 
        !            46:        /**
        !            47:         * This flag allows the OS version to be empty
        !            48:         */
        !            49:        bool version_is_set;
        !            50: 
        !            51:        /**
        !            52:         * OS Product Information (OS Name | OS Version)
        !            53:         */
        !            54:        char *info;
        !            55: 
        !            56: };
        !            57: 
        !            58: METHOD(imv_os_info_t, get_type, os_type_t,
        !            59:        private_imv_os_info_t *this)
        !            60: {
        !            61:        return this->type;
        !            62: }
        !            63: 
        !            64: METHOD(imv_os_info_t, set_name, void,
        !            65:        private_imv_os_info_t *this, chunk_t name)
        !            66: {
        !            67:        /* Has the OS name already been set? */
        !            68:        if (this->name.len)
        !            69:        {
        !            70:                if (chunk_equals(name, this->name))
        !            71:                {
        !            72:                        return;
        !            73:                }
        !            74:                free(this->name.ptr);
        !            75: 
        !            76:                /* Also clear the OS info string */
        !            77:                free(this->info);
        !            78:                this->info = NULL;
        !            79:        }
        !            80:        this->name = chunk_clone(name);
        !            81:        this->type = os_type_from_name(name);
        !            82: }
        !            83: 
        !            84: METHOD(imv_os_info_t, get_name, chunk_t,
        !            85:        private_imv_os_info_t *this)
        !            86: {
        !            87:        return this->name;
        !            88: }
        !            89: 
        !            90: METHOD(imv_os_info_t, set_version, void,
        !            91:        private_imv_os_info_t *this, chunk_t version)
        !            92: {
        !            93:        /* Has the OS version already been set? */
        !            94:        if (this->version_is_set)
        !            95:        {
        !            96:                if (chunk_equals(version, this->version))
        !            97:                {
        !            98:                        return;
        !            99:                }
        !           100:                free(this->version.ptr);
        !           101: 
        !           102:                /* Also clear the OS info string */
        !           103:                free(this->info);
        !           104:                this->info = NULL;
        !           105:        }
        !           106:        this->version = chunk_clone(version);
        !           107:        this->version_is_set = TRUE;
        !           108: }
        !           109: 
        !           110: METHOD(imv_os_info_t, get_version, chunk_t,
        !           111:        private_imv_os_info_t *this)
        !           112: {
        !           113:        return this->version;
        !           114: }
        !           115: 
        !           116: METHOD(imv_os_info_t, get_info, char*,
        !           117:        private_imv_os_info_t *this)
        !           118: {
        !           119:        int len;
        !           120: 
        !           121:        if (!this->info)
        !           122:        {
        !           123:                /* Have both OS name and OS version been set? */
        !           124:                if (this->name.len == 0 || !this->version_is_set)
        !           125:                {
        !           126:                        return NULL;
        !           127:                }
        !           128: 
        !           129:                /* OS info is a concatenation of OS name and OS version */
        !           130:                len = this->name.len + 1 + this->version.len + 1;
        !           131:                this->info = malloc(len);
        !           132:                snprintf(this->info, len, "%.*s %.*s",
        !           133:                                (int)this->name.len, this->name.ptr,
        !           134:                                (int)this->version.len, this->version.ptr);
        !           135:        }
        !           136:        return this->info;
        !           137: }
        !           138: 
        !           139: METHOD(imv_os_info_t, destroy, void,
        !           140:        private_imv_os_info_t *this)
        !           141: {
        !           142:        free(this->name.ptr);
        !           143:        free(this->version.ptr);
        !           144:        free(this->info);
        !           145:        free(this);
        !           146: }
        !           147: 
        !           148: /**
        !           149:  * See header
        !           150:  */
        !           151: imv_os_info_t *imv_os_info_create(void)
        !           152: {
        !           153:        private_imv_os_info_t *this;
        !           154: 
        !           155:        INIT(this,
        !           156:                .public = {
        !           157:                        .get_type = _get_type,
        !           158:                        .set_name = _set_name,
        !           159:                        .get_name = _get_name,
        !           160:                        .set_version = _set_version,
        !           161:                        .get_version = _get_version,
        !           162:                        .get_info = _get_info,
        !           163:                        .destroy = _destroy,
        !           164:                },
        !           165:        );
        !           166: 
        !           167:        return &this->public;
        !           168: }