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Annotation of embedaddon/strongswan/scripts/hash_burn.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (C) 2012 Martin Willi
        !             3:  * Copyright (C) 2012 revosec AG
        !             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 <stdio.h>
        !            17: #include <library.h>
        !            18: 
        !            19: 
        !            20: 
        !            21: int main(int argc, char *argv[])
        !            22: {
        !            23:        hash_algorithm_t alg;
        !            24:        hasher_t *hasher;
        !            25:        char buffer[1024];
        !            26:        int limit = 0, i = 0;
        !            27: 
        !            28:        library_init(NULL, "hash_burn");
        !            29:        lib->plugins->load(lib->plugins, PLUGINS);
        !            30:        atexit(library_deinit);
        !            31: 
        !            32:        printf("loaded: %s\n", PLUGINS);
        !            33: 
        !            34:        memset(buffer, 0x12, sizeof(buffer));
        !            35: 
        !            36:        if (argc < 2)
        !            37:        {
        !            38:                fprintf(stderr, "usage: %s <algorithm>!\n", argv[0]);
        !            39:                return 1;
        !            40:        }
        !            41:        if (argc > 2)
        !            42:        {
        !            43:                limit = atoi(argv[2]);
        !            44:        }
        !            45: 
        !            46:        if (!enum_from_name(hash_algorithm_short_names, argv[1], &alg))
        !            47:        {
        !            48:                fprintf(stderr, "unknown hash algorithm: %s\n", argv[1]);
        !            49:                return 1;
        !            50:        }
        !            51:        hasher = lib->crypto->create_hasher(lib->crypto, alg);
        !            52:        if (!hasher)
        !            53:        {
        !            54:                fprintf(stderr, "hash algorithm not supported: %N\n",
        !            55:                                hash_algorithm_names, alg);
        !            56:                return 1;
        !            57:        }
        !            58: 
        !            59:        while (TRUE)
        !            60:        {
        !            61:                if (!hasher->get_hash(hasher, chunk_from_thing(buffer), buffer))
        !            62:                {
        !            63:                        fprintf(stderr, "hashing failed!\n");
        !            64:                        return 1;
        !            65:                }
        !            66:                if (limit && ++i == limit)
        !            67:                {
        !            68:                        break;
        !            69:                }
        !            70:        }
        !            71:        hasher->destroy(hasher);
        !            72:        return 0;
        !            73: }