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Annotation of embedaddon/strongswan/src/libimcv/imv/imv_os_info.c, revision 1.1.1.1

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: }