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/* |
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* Copyright (C) 1998,1999,2000 Nikos Mavroyanopoulos |
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* |
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* This library is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU Library General Public License as published |
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* by the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This library 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. See the GNU |
| 12 |
* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public |
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* License along with this library; if not, write to the |
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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* Boston, MA 02111-1307, USA. |
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*/ |
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|
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#ifndef LIBDEFS_H |
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#define LIBDEFS_H |
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#include <libdefs.h> |
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#endif |
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#include <bzero.h> |
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#include <mcrypt_internal.h> |
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#include <xmemory.h> |
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|
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#if 0 |
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extern int preloaded_symbols; |
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#endif |
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|
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int mcrypt_module_close(MCRYPT td) |
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{ |
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|
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lt_dlclose(td->algorithm_handle); |
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lt_dlclose(td->mode_handle); |
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lt_dlexit(); |
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|
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td->algorithm_handle = NULL; |
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td->mode_handle = NULL; |
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|
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td->m_encrypt = NULL; |
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td->a_encrypt = NULL; |
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td->a_decrypt = NULL; |
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td->m_decrypt = NULL; |
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|
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return 0; |
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} |
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|
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#ifndef USE_LTDL |
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void *mcrypt_dlopen_ext ( const char *filename) { |
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void *ret; |
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char full_path[1054]; |
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|
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if (strlen(filename)>sizeof(full_path)) return; |
| 56 |
|
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strcpy(full_path, filename); |
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ret = dlopen(full_path, RTLD_LAZY); |
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|
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if (ret==NULL) { |
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strcat(full_path, ".so"); |
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ret = dlopen(full_path, RTLD_LAZY); |
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} |
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return ret; |
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|
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} |
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#endif |
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|
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void *mcrypt_dlopen ( const char* a_directory, const char *m_directory, const char *filename) { |
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void* ret=NULL; |
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|
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#ifdef USE_LTDL |
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char paths[1526]; |
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|
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memset( paths, 0, 1024); |
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if (a_directory != NULL) { |
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strncat( paths, a_directory, 512); |
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strcat( paths, ":"); |
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} |
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if (m_directory != NULL) { |
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strncat( paths, m_directory, 512); |
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strcat( paths, ":"); |
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} |
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strncat( paths, LIBDIR, 512); |
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|
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lt_dlsetsearchpath(paths); |
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|
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ret = lt_dlopenext(filename); |
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if (ret==NULL) ret = lt_dlopen(filename); |
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|
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return ret; |
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|
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#else |
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char full_path[1050]; |
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|
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if (a_directory!=NULL) { |
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strncpy(full_path, a_directory, 512); |
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strcat(full_path, "/"); |
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strncat( full_path, filename, 512); |
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ret = mcrypt_dlopen_ext(full_path); |
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} |
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if (ret==NULL) { |
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if (m_directory!=NULL) { |
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strncpy(full_path, m_directory, 512); |
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strcat(full_path, "/"); |
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strncat( full_path, filename, 510); |
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ret = mcrypt_dlopen_ext(full_path); |
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} |
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} |
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if (ret==NULL) { |
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if (LIBDIR!=NULL) { |
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strncpy(full_path, LIBDIR, 512); |
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strcat(full_path, "/"); |
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strncat( full_path, filename, 510); |
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ret = mcrypt_dlopen_ext(full_path); |
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} |
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} |
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return ret; |
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#endif |
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|
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} |
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|
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MCRYPT mcrypt_module_open(char *algorithm, |
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char *a_directory, char *mode, char *m_directory) |
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{ |
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MCRYPT td; |
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char* err; |
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|
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td = calloc(1, sizeof(CRYPT_STREAM)); |
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|
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if (lt_dlinit() != 0) { |
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return MCRYPT_FAILED; |
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} |
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|
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/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
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|
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td->algorithm_handle = mcrypt_dlopen(a_directory, m_directory, algorithm); |
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if (td->algorithm_handle == NULL) { |
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err=lt_dlerror(); |
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if (err!=NULL) fputs( err, stderr); |
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fputs("\n", stderr); |
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return MCRYPT_FAILED; |
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} |
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|
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td->mode_handle = mcrypt_dlopen(a_directory, m_directory, mode); |
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|
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if (td->mode_handle == NULL) { |
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err=lt_dlerror(); |
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if (err!=NULL) fputs( err, stderr); |
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lt_dlclose(td->algorithm_handle); |
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return MCRYPT_FAILED; |
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} |
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|
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td->a_encrypt = lt_dlsym(td->algorithm_handle, "_mcrypt_encrypt"); |
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td->a_decrypt = lt_dlsym(td->algorithm_handle, "_mcrypt_decrypt"); |
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td->m_encrypt = lt_dlsym(td->mode_handle, "_mcrypt"); |
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td->m_decrypt = lt_dlsym(td->mode_handle, "_mdecrypt"); |
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td->a_block_size = |
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lt_dlsym(td->algorithm_handle, "_mcrypt_get_block_size"); |
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|
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if (mcrypt_enc_is_block_algorithm_mode(td) != |
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mcrypt_enc_is_block_algorithm(td)) { |
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mcrypt_module_close(td); |
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return MCRYPT_FAILED; |
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} |
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|
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return td; |
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} |
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|
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|
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|
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/* Modules' frontends */ |
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|
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int mcrypt_get_size(MCRYPT td) |
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{ |
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int (*_mcrypt_get_size) (void); |
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|
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const char *error; |
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char *s; |
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|
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s = td->algorithm_handle; |
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_mcrypt_get_size = lt_dlsym(s, "_mcrypt_get_size"); |
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if ((error = lt_dlerror())) { |
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if (error!=NULL) fputs(error, stderr); |
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fputs("\n", stderr); |
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return MCRYPT_UNKNOWN_ERROR; |
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} |
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return _mcrypt_get_size(); |
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} |
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|
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int mcrypt_mode_get_size(MCRYPT td) |
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{ |
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int (*_mcrypt_get_size) (void); |
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|
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const char *error; |
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char *s; |
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|
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s = td->mode_handle; |
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_mcrypt_get_size = lt_dlsym(s, "_mcrypt_mode_get_size"); |
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if ((error = lt_dlerror())) { |
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if (error!=NULL) fputs(error, stderr); |
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fputs("\n", stderr); |
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return MCRYPT_UNKNOWN_ERROR; |
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} |
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return _mcrypt_get_size(); |
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} |
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|
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void mcrypt_set_key(MCRYPT td, void *a, void *b, int c, void *d, int e) |
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{ |
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void (*__mcrypt_set_key_stream) (void *, void *, int, void *, int); |
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void (*__mcrypt_set_key_block) (void *, void *, int); |
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const char *error; |
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char *s; |
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|
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s = td->algorithm_handle; |
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if (mcrypt_enc_is_block_algorithm(td) == 0) { |
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/* stream */ |
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__mcrypt_set_key_stream = lt_dlsym(s, "_mcrypt_set_key"); |
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if ((error = lt_dlerror())) { |
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if (error!=NULL) fputs(error, stderr); |
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fputs("\n", stderr); |
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return; |
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} |
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__mcrypt_set_key_stream(a, b, c, d, e); |
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} else { |
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__mcrypt_set_key_block = lt_dlsym(s, "_mcrypt_set_key"); |
| 227 |
if ((error = lt_dlerror())) { |
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if (error!=NULL) fputs(error, stderr); |
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fputs("\n", stderr); |
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return; |
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} |
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__mcrypt_set_key_block(a, b, c); |
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} |
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} |
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|
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int mcrypt_enc_set_state(MCRYPT td, void *iv, int size) |
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{ |
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int (*__mcrypt_set_state) (void *, void *, int); |
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const char *error; |
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char *s; |
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|
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s = td->mode_handle; |
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|
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__mcrypt_set_state = lt_dlsym(s, "_mcrypt_set_state"); |
| 245 |
if ((error = lt_dlerror())) { |
| 246 |
if (error!=NULL) fputs(error, stderr); |
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fputs("\n", stderr); |
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return MCRYPT_UNKNOWN_ERROR; |
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} |
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return __mcrypt_set_state(td->abuf, iv, size); |
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} |
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|
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|
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int mcrypt_enc_get_block_size(MCRYPT td) |
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{ |
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int (*_mcrypt_get_block_size) (void); |
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|
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_mcrypt_get_block_size = td->a_block_size; |
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return _mcrypt_get_block_size(); |
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} |
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|
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|
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int mcrypt_get_algo_iv_size(MCRYPT td) |
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{ |
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int (*_mcrypt_get_algo_iv_size) (void); |
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char *s; |
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|
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s = td->algorithm_handle; |
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|
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_mcrypt_get_algo_iv_size = lt_dlsym(s, "_mcrypt_get_algo_iv_size"); |
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return _mcrypt_get_algo_iv_size(); |
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} |
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|
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|
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int mcrypt_enc_get_iv_size(MCRYPT td) |
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{ |
| 277 |
if (mcrypt_enc_is_block_algorithm_mode(td) == 1) { |
| 278 |
return mcrypt_enc_get_block_size(td); |
| 279 |
} else { |
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return mcrypt_get_algo_iv_size(td); |
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} |
| 282 |
} |
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|
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int mcrypt_enc_get_key_size(MCRYPT td) |
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{ |
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int (*_mcrypt_get_key_size) (void); |
| 287 |
char *s; |
| 288 |
|
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s = td->algorithm_handle; |
| 290 |
|
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_mcrypt_get_key_size = lt_dlsym(s, "_mcrypt_get_key_size"); |
| 292 |
return _mcrypt_get_key_size(); |
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} |
| 294 |
|
| 295 |
|
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int *mcrypt_enc_get_supported_key_sizes(MCRYPT td, int *len) |
| 297 |
{ |
| 298 |
int *(*_mcrypt_get_key_sizes) (int *); |
| 299 |
char *s; |
| 300 |
int *size; |
| 301 |
|
| 302 |
s = td->algorithm_handle; |
| 303 |
|
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_mcrypt_get_key_sizes = |
| 305 |
lt_dlsym(s, "_mcrypt_get_supported_key_sizes"); |
| 306 |
size = _mcrypt_get_key_sizes(len); |
| 307 |
|
| 308 |
return size; |
| 309 |
} |
| 310 |
|
| 311 |
|
| 312 |
int mcrypt_enc_is_block_algorithm(MCRYPT td) |
| 313 |
{ |
| 314 |
int (*_is_block_algorithm) (void); |
| 315 |
char *s; |
| 316 |
|
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s = td->algorithm_handle; |
| 318 |
|
| 319 |
_is_block_algorithm = lt_dlsym(s, "_is_block_algorithm"); |
| 320 |
return _is_block_algorithm(); |
| 321 |
} |
| 322 |
|
| 323 |
|
| 324 |
char *mcrypt_enc_get_algorithms_name(MCRYPT td) |
| 325 |
{ |
| 326 |
char *(*_mcrypt_get_algorithms_name) (void); |
| 327 |
char *s; |
| 328 |
|
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s = td->algorithm_handle; |
| 330 |
|
| 331 |
_mcrypt_get_algorithms_name = |
| 332 |
lt_dlsym(s, "_mcrypt_get_algorithms_name"); |
| 333 |
return _mcrypt_get_algorithms_name(); |
| 334 |
} |
| 335 |
|
| 336 |
void mcrypt_block_encrypt(MCRYPT td, void *b) |
| 337 |
{ |
| 338 |
void (*_mcrypt_block_encrypt) (void *, void *); |
| 339 |
char *a; |
| 340 |
|
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a = td->akey; |
| 342 |
_mcrypt_block_encrypt = td->a_encrypt; |
| 343 |
|
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_mcrypt_block_encrypt(a, b); |
| 345 |
} |
| 346 |
|
| 347 |
void mcrypt_block_decrypt(MCRYPT td, void *b) |
| 348 |
{ |
| 349 |
void (*_mcrypt_block_decrypt) (void *, void *); |
| 350 |
char *a; |
| 351 |
|
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a = td->akey; |
| 353 |
_mcrypt_block_decrypt = td->a_decrypt; |
| 354 |
_mcrypt_block_decrypt(a, b); |
| 355 |
} |
| 356 |
|
| 357 |
void mcrypt_stream_encrypt(MCRYPT td, void *b, int c) |
| 358 |
{ |
| 359 |
void (*_mcrypt_stream_encrypt) (void *, void *, int); |
| 360 |
char *a; |
| 361 |
|
| 362 |
a = td->akey; |
| 363 |
_mcrypt_stream_encrypt = td->a_encrypt; |
| 364 |
_mcrypt_stream_encrypt(a, b, c); |
| 365 |
} |
| 366 |
|
| 367 |
void mcrypt_stream_decrypt(MCRYPT td, void *b, int c) |
| 368 |
{ |
| 369 |
void (*_mcrypt_stream_decrypt) (void *, void *, int); |
| 370 |
char *a; |
| 371 |
|
| 372 |
a = td->akey; |
| 373 |
_mcrypt_stream_decrypt = td->a_decrypt; |
| 374 |
_mcrypt_stream_decrypt(a, b, c); |
| 375 |
} |
| 376 |
|
| 377 |
int init_mcrypt(MCRYPT td, void *buf, void *a, int b, void *c) |
| 378 |
{ |
| 379 |
int (*_init_mcrypt) (void *, void *, int, void *, int); |
| 380 |
char *s; |
| 381 |
|
| 382 |
s = td->mode_handle; |
| 383 |
_init_mcrypt = lt_dlsym(s, "_init_mcrypt"); |
| 384 |
return _init_mcrypt(buf, a, b, c, mcrypt_enc_get_block_size(td)); |
| 385 |
} |
| 386 |
|
| 387 |
int end_mcrypt(MCRYPT td, void *buf) |
| 388 |
{ |
| 389 |
int (*_end_mcrypt) (void *); |
| 390 |
char *s; |
| 391 |
|
| 392 |
s = td->mode_handle; |
| 393 |
_end_mcrypt = lt_dlsym(s, "_end_mcrypt"); |
| 394 |
return _end_mcrypt(buf); |
| 395 |
} |
| 396 |
|
| 397 |
int mcrypt(MCRYPT td, void *buf, void *a, int b) |
| 398 |
{ |
| 399 |
int (*_mcrypt) (void *, void *, int, int, void *, void *, void*); |
| 400 |
_mcrypt = td->m_encrypt; |
| 401 |
|
| 402 |
return _mcrypt(buf, a, b, mcrypt_enc_get_block_size(td), td->akey, |
| 403 |
td->a_encrypt, td->a_decrypt); |
| 404 |
} |
| 405 |
|
| 406 |
int mdecrypt(MCRYPT td, void *buf, void *a, int b) |
| 407 |
{ |
| 408 |
int (*_mdecrypt) (void *, void *, int, int, void *, void *, void*); |
| 409 |
|
| 410 |
_mdecrypt = td->m_decrypt; |
| 411 |
return _mdecrypt(buf, a, b, mcrypt_enc_get_block_size(td), |
| 412 |
td->akey, td->a_encrypt, td->a_decrypt); |
| 413 |
} |
| 414 |
|
| 415 |
|
| 416 |
char *mcrypt_enc_get_modes_name(MCRYPT td) |
| 417 |
{ |
| 418 |
char *(*_mcrypt_get_modes_name) (void); |
| 419 |
char *s; |
| 420 |
|
| 421 |
s = td->mode_handle; |
| 422 |
|
| 423 |
_mcrypt_get_modes_name = lt_dlsym(s, "_mcrypt_get_modes_name"); |
| 424 |
return _mcrypt_get_modes_name(); |
| 425 |
} |
| 426 |
|
| 427 |
|
| 428 |
int mcrypt_enc_is_block_mode(MCRYPT td) |
| 429 |
{ |
| 430 |
int (*_is_block_mode) (void); |
| 431 |
char *s; |
| 432 |
|
| 433 |
s = td->mode_handle; |
| 434 |
|
| 435 |
_is_block_mode = lt_dlsym(s, "_is_block_mode"); |
| 436 |
return _is_block_mode(); |
| 437 |
} |
| 438 |
|
| 439 |
int mcrypt_enc_mode_has_iv(MCRYPT td) |
| 440 |
{ |
| 441 |
int (*_has_iv) (void); |
| 442 |
char *s; |
| 443 |
|
| 444 |
s = td->mode_handle; |
| 445 |
|
| 446 |
_has_iv = lt_dlsym(s, "_has_iv"); |
| 447 |
return _has_iv(); |
| 448 |
} |
| 449 |
|
| 450 |
|
| 451 |
int mcrypt_enc_is_block_algorithm_mode(MCRYPT td) |
| 452 |
{ |
| 453 |
int (*_is_a_block_mode) (void); |
| 454 |
char *s; |
| 455 |
|
| 456 |
s = td->mode_handle; |
| 457 |
|
| 458 |
_is_a_block_mode = lt_dlsym(s, "_is_block_algorithm_mode"); |
| 459 |
return _is_a_block_mode(); |
| 460 |
} |
| 461 |
|
| 462 |
|
| 463 |
int mcrypt_enc_self_test(MCRYPT td) |
| 464 |
{ |
| 465 |
int (*_self_test) (void); |
| 466 |
char *s; |
| 467 |
|
| 468 |
s = td->algorithm_handle; |
| 469 |
|
| 470 |
_self_test = lt_dlsym(s, "_mcrypt_self_test"); |
| 471 |
|
| 472 |
return _self_test(); |
| 473 |
} |
| 474 |
|
| 475 |
|
| 476 |
int mcrypt_module_self_test(char *algorithm, char *a_directory) |
| 477 |
{ |
| 478 |
int i; |
| 479 |
lt_dlhandle *_handle; |
| 480 |
int (*_self_test) (void); |
| 481 |
char* error; |
| 482 |
|
| 483 |
|
| 484 |
if (lt_dlinit() != 0) { |
| 485 |
return MCRYPT_UNKNOWN_ERROR; |
| 486 |
} |
| 487 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 488 |
|
| 489 |
_handle = mcrypt_dlopen(a_directory, NULL, algorithm); |
| 490 |
|
| 491 |
if (!_handle) { |
| 492 |
error=lt_dlerror(); |
| 493 |
if (error!=NULL) fputs( error, stderr); |
| 494 |
fputs("\n", stderr); |
| 495 |
return MCRYPT_UNKNOWN_ERROR; |
| 496 |
} |
| 497 |
|
| 498 |
_self_test = lt_dlsym(_handle, "_mcrypt_self_test"); |
| 499 |
|
| 500 |
i = _self_test(); |
| 501 |
|
| 502 |
lt_dlclose(_handle); |
| 503 |
lt_dlexit(); |
| 504 |
return i; |
| 505 |
} |
| 506 |
|
| 507 |
int mcrypt_module_algorithm_version(char *algorithm, char *a_directory) |
| 508 |
{ |
| 509 |
int i; |
| 510 |
lt_dlhandle _handle; |
| 511 |
int (*_version) (void); |
| 512 |
char* error; |
| 513 |
|
| 514 |
if (lt_dlinit() != 0) { |
| 515 |
return MCRYPT_UNKNOWN_ERROR; |
| 516 |
} |
| 517 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 518 |
|
| 519 |
_handle = mcrypt_dlopen(a_directory, NULL, algorithm); |
| 520 |
if (!_handle) { |
| 521 |
error=lt_dlerror(); |
| 522 |
if (error!=NULL) fputs( error, stderr); |
| 523 |
fputs("\n", stderr); |
| 524 |
return MCRYPT_UNKNOWN_ERROR; |
| 525 |
} |
| 526 |
|
| 527 |
_version = lt_dlsym(_handle, "_mcrypt_algorithm_version"); |
| 528 |
|
| 529 |
i = _version(); |
| 530 |
|
| 531 |
lt_dlclose(_handle); |
| 532 |
lt_dlexit(); |
| 533 |
|
| 534 |
return i; |
| 535 |
} |
| 536 |
|
| 537 |
int mcrypt_module_mode_version(char *mode, char *m_directory) |
| 538 |
{ |
| 539 |
int i; |
| 540 |
lt_dlhandle *_handle; |
| 541 |
int (*_version) (void); |
| 542 |
char* error; |
| 543 |
|
| 544 |
if (lt_dlinit() != 0) { |
| 545 |
return MCRYPT_UNKNOWN_ERROR; |
| 546 |
} |
| 547 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 548 |
|
| 549 |
_handle = mcrypt_dlopen(m_directory, NULL, mode); |
| 550 |
if (!_handle) { |
| 551 |
error=lt_dlerror(); |
| 552 |
if(error!=NULL) fputs(error, stderr); |
| 553 |
fputs("\n", stderr); |
| 554 |
return MCRYPT_UNKNOWN_ERROR; |
| 555 |
} |
| 556 |
|
| 557 |
_version = lt_dlsym(_handle, "_mcrypt_mode_version"); |
| 558 |
|
| 559 |
i = _version(); |
| 560 |
|
| 561 |
lt_dlclose(_handle); |
| 562 |
lt_dlexit(); |
| 563 |
|
| 564 |
return i; |
| 565 |
} |
| 566 |
|
| 567 |
|
| 568 |
int mcrypt_module_is_block_algorithm(char *algorithm, char *a_directory) |
| 569 |
{ |
| 570 |
int i; |
| 571 |
lt_dlhandle _handle; |
| 572 |
int (*_is_block_algorithm) (void); |
| 573 |
char* error; |
| 574 |
|
| 575 |
if (lt_dlinit() != 0) { |
| 576 |
return MCRYPT_UNKNOWN_ERROR; |
| 577 |
} |
| 578 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 579 |
|
| 580 |
_handle = mcrypt_dlopen(a_directory, NULL, algorithm); |
| 581 |
|
| 582 |
if (!_handle) { |
| 583 |
error=lt_dlerror(); |
| 584 |
if(error!=NULL) fputs( error, stderr); |
| 585 |
fputs("\n", stderr); |
| 586 |
return MCRYPT_UNKNOWN_ERROR; |
| 587 |
} |
| 588 |
|
| 589 |
_is_block_algorithm = lt_dlsym(_handle, "_is_block_algorithm"); |
| 590 |
|
| 591 |
i = _is_block_algorithm(); |
| 592 |
|
| 593 |
lt_dlclose(_handle); |
| 594 |
lt_dlexit(); |
| 595 |
|
| 596 |
return i; |
| 597 |
} |
| 598 |
|
| 599 |
|
| 600 |
int mcrypt_module_is_block_algorithm_mode(char *mode, char *m_directory) |
| 601 |
{ |
| 602 |
int i; |
| 603 |
lt_dlhandle *_handle; |
| 604 |
int (*_is_a_block_mode) (void); |
| 605 |
char* error; |
| 606 |
|
| 607 |
if (lt_dlinit() != 0) { |
| 608 |
return MCRYPT_UNKNOWN_ERROR; |
| 609 |
} |
| 610 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 611 |
|
| 612 |
_handle = mcrypt_dlopen(m_directory, NULL, mode); |
| 613 |
if (!_handle) { |
| 614 |
error=lt_dlerror(); |
| 615 |
if(error!=NULL) fputs( error, stderr); |
| 616 |
fputs("\n", stderr); |
| 617 |
return MCRYPT_UNKNOWN_ERROR; |
| 618 |
} |
| 619 |
|
| 620 |
_is_a_block_mode = lt_dlsym(_handle, "_is_block_algorithm_mode"); |
| 621 |
|
| 622 |
i = _is_a_block_mode(); |
| 623 |
|
| 624 |
lt_dlclose(_handle); |
| 625 |
lt_dlexit(); |
| 626 |
|
| 627 |
return i; |
| 628 |
} |
| 629 |
|
| 630 |
|
| 631 |
int mcrypt_module_is_block_mode(char *mode, char *m_directory) |
| 632 |
{ |
| 633 |
int i; |
| 634 |
lt_dlhandle *_handle; |
| 635 |
int (*_is_block_mode) (void); |
| 636 |
char* error; |
| 637 |
|
| 638 |
if (lt_dlinit() != 0) { |
| 639 |
return MCRYPT_UNKNOWN_ERROR; |
| 640 |
} |
| 641 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 642 |
|
| 643 |
_handle = mcrypt_dlopen(m_directory, NULL, mode); |
| 644 |
if (!_handle) { |
| 645 |
error=lt_dlerror(); |
| 646 |
if(error!=NULL) fputs( error, stderr); |
| 647 |
fputs("\n", stderr); |
| 648 |
return MCRYPT_UNKNOWN_ERROR; |
| 649 |
} |
| 650 |
|
| 651 |
_is_block_mode = lt_dlsym(_handle, "_is_block_mode"); |
| 652 |
|
| 653 |
i = _is_block_mode(); |
| 654 |
|
| 655 |
lt_dlclose(_handle); |
| 656 |
lt_dlexit(); |
| 657 |
|
| 658 |
return i; |
| 659 |
} |
| 660 |
|
| 661 |
int mcrypt_module_get_algo_block_size(char *algorithm, char *a_directory) |
| 662 |
{ |
| 663 |
int i; |
| 664 |
lt_dlhandle _handle; |
| 665 |
int (*_get_block_size) (void); |
| 666 |
char* error; |
| 667 |
|
| 668 |
if (lt_dlinit() != 0) { |
| 669 |
return MCRYPT_UNKNOWN_ERROR; |
| 670 |
} |
| 671 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 672 |
|
| 673 |
_handle = mcrypt_dlopen(a_directory, NULL, algorithm); |
| 674 |
if (!_handle) { |
| 675 |
error=lt_dlerror(); |
| 676 |
if(error!=NULL) fputs( error, stderr); |
| 677 |
fputs("\n", stderr); |
| 678 |
return MCRYPT_UNKNOWN_ERROR; |
| 679 |
} |
| 680 |
|
| 681 |
_get_block_size = lt_dlsym(_handle, "_mcrypt_get_block_size"); |
| 682 |
|
| 683 |
i = _get_block_size(); |
| 684 |
|
| 685 |
lt_dlclose(_handle); |
| 686 |
lt_dlexit(); |
| 687 |
|
| 688 |
return i; |
| 689 |
} |
| 690 |
|
| 691 |
int mcrypt_module_get_algo_key_size(char *algorithm, char *a_directory) |
| 692 |
{ |
| 693 |
int i; |
| 694 |
lt_dlhandle _handle; |
| 695 |
int (*_get_key_size) (void); |
| 696 |
char* error; |
| 697 |
|
| 698 |
if (lt_dlinit() != 0) { |
| 699 |
return MCRYPT_UNKNOWN_ERROR; |
| 700 |
} |
| 701 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 702 |
|
| 703 |
_handle = mcrypt_dlopen(a_directory, NULL, algorithm); |
| 704 |
if (!_handle) { |
| 705 |
error=lt_dlerror(); |
| 706 |
if(error!=NULL) fputs( error, stderr); |
| 707 |
fputs("\n", stderr); |
| 708 |
return MCRYPT_UNKNOWN_ERROR; |
| 709 |
} |
| 710 |
|
| 711 |
_get_key_size = lt_dlsym(_handle, "_mcrypt_get_key_size"); |
| 712 |
|
| 713 |
i = _get_key_size(); |
| 714 |
|
| 715 |
lt_dlclose(_handle); |
| 716 |
lt_dlexit(); |
| 717 |
|
| 718 |
return i; |
| 719 |
} |
| 720 |
|
| 721 |
|
| 722 |
int *mcrypt_module_get_algo_supported_key_sizes(char *algorithm, |
| 723 |
char *a_directory, |
| 724 |
int *len) |
| 725 |
{ |
| 726 |
lt_dlhandle _handle; |
| 727 |
int *(*_mcrypt_get_key_sizes) (int *); |
| 728 |
int *size; |
| 729 |
char* error; |
| 730 |
|
| 731 |
if (lt_dlinit() != 0) { |
| 732 |
*len = 0; |
| 733 |
return NULL; |
| 734 |
} |
| 735 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 736 |
|
| 737 |
_handle = mcrypt_dlopen(a_directory, NULL, algorithm); |
| 738 |
if (!_handle) { |
| 739 |
error=lt_dlerror(); |
| 740 |
if(error!=NULL) fputs( error, stderr); |
| 741 |
fputs("\n", stderr); |
| 742 |
*len = 0; |
| 743 |
return NULL; |
| 744 |
} |
| 745 |
|
| 746 |
_mcrypt_get_key_sizes = |
| 747 |
lt_dlsym(_handle, "_mcrypt_get_supported_key_sizes"); |
| 748 |
|
| 749 |
size = _mcrypt_get_key_sizes(len); |
| 750 |
|
| 751 |
lt_dlclose(_handle); |
| 752 |
lt_dlexit(); |
| 753 |
|
| 754 |
return size; |
| 755 |
} |
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