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/* |
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* Copyright (C) 1998,1999,2000,2001 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 |
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* 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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#ifndef DEBUG |
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# define fputs(x, y) |
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#endif |
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|
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extern const mcrypt_preloaded mps[]; |
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|
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#define MAX_MOD_SIZE 1024 |
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|
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static int mcrypt_strcmp( const char* str1, const char* str2) { |
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int i; |
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int len; |
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if (strlen(str1)!=strlen(str2)) return -1; |
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len = strlen(str1); |
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|
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for (i=0;i<len;i++) { |
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if (str1[i]=='_' && str2[i]=='-') continue; |
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if (str2[i]=='_' && str1[i]=='-') continue; |
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if (str1[i]!=str2[i]) return -1; |
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} |
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|
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return 0; |
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} |
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|
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lt_ptr _mcrypt_search_symlist_lib(const char* name) { |
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int i=0; |
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|
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while( mps[i].name!=0 || mps[i].address!=0) { |
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if (mps[i].name!=NULL && mps[i].address==NULL) { |
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if (mcrypt_strcmp(name, mps[i].name)==0) { |
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return (void*) -1; |
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} |
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} |
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i++; |
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} |
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return NULL; |
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} |
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|
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lt_ptr _mcrypt_search_symlist_sym(mcrypt_dlhandle handle, const char* _name) { |
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int i=0; |
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char name[MAX_MOD_SIZE]; |
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|
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strcpy(name, handle.name); |
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|
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strcat( name, "_LTX_"); |
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strcat( name, _name); |
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|
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while( mps[i].name!=0 || mps[i].address!=0) { |
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if (mps[i].name!=NULL) { |
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if (mcrypt_strcmp(name, mps[i].name)==0) { |
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return mps[i].address; |
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} |
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} |
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i++; |
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} |
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return NULL; |
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} |
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|
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void mcrypt_dlclose( mcrypt_dlhandle handle) { |
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void* mod = handle.handle; |
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|
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if (mod!=MCRYPT_INTERNAL_HANDLER && mod!=NULL) |
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lt_dlclose(mod); |
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handle.handle = NULL; |
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} |
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|
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lt_ptr mcrypt_dlsym( mcrypt_dlhandle handle, char* str) { |
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void* mod; |
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|
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mod = handle.handle; |
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|
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if (mod!=MCRYPT_INTERNAL_HANDLER) |
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return lt_dlsym(mod, str); |
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else |
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return _mcrypt_search_symlist_sym(handle, str); |
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|
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} |
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|
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WIN32DLL_DEFINE |
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int mcrypt_module_close(MCRYPT td) |
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{ |
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mcrypt_dlclose(td->algorithm_handle); |
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mcrypt_dlclose(td->mode_handle); |
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if (lt_dlexit() != 0) { |
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return MCRYPT_UNKNOWN_ERROR; |
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} |
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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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free(td); |
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|
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return 0; |
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} |
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|
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|
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WIN32DLL_DEFINE |
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void* mcrypt_dlopen ( mcrypt_dlhandle* handle, const char* a_directory, const char *m_directory, const char *filename) { |
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|
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char paths[1526]; |
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|
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if (strlen(filename) > sizeof( handle->name)) |
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return MCRYPT_FAILED; |
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else |
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strcpy( handle->name, filename); |
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|
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if (_mcrypt_search_symlist_lib(filename)!=NULL) { |
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handle->handle = MCRYPT_INTERNAL_HANDLER; |
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return handle->handle; |
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} |
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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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handle->handle = lt_dlopenext(filename); |
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|
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return handle->handle; |
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|
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} |
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|
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WIN32DLL_DEFINE |
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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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const char* err; |
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void *ret; |
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|
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td = calloc(1, sizeof(CRYPT_STREAM)); |
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if (td==NULL) return MCRYPT_FAILED; |
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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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ret = mcrypt_dlopen( &td->algorithm_handle, a_directory, m_directory, algorithm); |
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if (ret == 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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free(td); |
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return MCRYPT_FAILED; |
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} |
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|
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ret = mcrypt_dlopen( &td->mode_handle, a_directory, m_directory, mode); |
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|
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if (ret == NULL) { |
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err=lt_dlerror(); |
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if (err!=NULL) fputs( err, stderr); |
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mcrypt_dlclose(td->algorithm_handle); |
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free(td); |
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return MCRYPT_FAILED; |
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} |
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|
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td->a_encrypt = mcrypt_dlsym(td->algorithm_handle, "_mcrypt_encrypt"); |
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td->a_decrypt = mcrypt_dlsym(td->algorithm_handle, "_mcrypt_decrypt"); |
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td->m_encrypt = mcrypt_dlsym(td->mode_handle, "_mcrypt"); |
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td->m_decrypt = mcrypt_dlsym(td->mode_handle, "_mdecrypt"); |
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td->a_block_size = |
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mcrypt_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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WIN32DLL_DEFINE |
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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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|
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_mcrypt_get_size = mcrypt_dlsym(td->algorithm_handle, "_mcrypt_get_size"); |
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if (_mcrypt_get_size == NULL) { |
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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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WIN32DLL_DEFINE |
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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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|
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_mcrypt_get_size = mcrypt_dlsym(td->mode_handle, "_mcrypt_mode_get_size"); |
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if (_mcrypt_get_size == NULL) { |
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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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WIN32DLL_DEFINE |
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int mcrypt_set_key(MCRYPT td, void *a, void *b, int c, void *d, int e) |
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{ |
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int (*__mcrypt_set_key_stream) (void *, void *, int, void *, int); |
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int (*__mcrypt_set_key_block) (void *, void *, int); |
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const char *error; |
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|
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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 = mcrypt_dlsym(td->algorithm_handle, "_mcrypt_set_key"); |
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if (__mcrypt_set_key_stream == NULL) { |
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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 -2; |
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} |
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return __mcrypt_set_key_stream(a, b, c, d, e); |
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} else { |
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__mcrypt_set_key_block = mcrypt_dlsym(td->algorithm_handle, "_mcrypt_set_key"); |
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if (__mcrypt_set_key_block == NULL) { |
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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 -2; |
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} |
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return __mcrypt_set_key_block(a, b, c); |
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} |
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} |
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|
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WIN32DLL_DEFINE |
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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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|
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__mcrypt_set_state = mcrypt_dlsym(td->mode_handle, "_mcrypt_set_state"); |
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if (__mcrypt_set_state==NULL) { |
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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_set_state(td->abuf, iv, size); |
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} |
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|
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WIN32DLL_DEFINE |
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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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WIN32DLL_DEFINE |
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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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|
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_mcrypt_get_algo_iv_size = mcrypt_dlsym(td->algorithm_handle, "_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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WIN32DLL_DEFINE |
311 |
int mcrypt_enc_get_iv_size(MCRYPT td) |
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{ |
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if (mcrypt_enc_is_block_algorithm_mode(td) == 1) { |
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return mcrypt_enc_get_block_size(td); |
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} else { |
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return mcrypt_get_algo_iv_size(td); |
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} |
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} |
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|
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WIN32DLL_DEFINE |
321 |
int mcrypt_enc_get_key_size(MCRYPT td) |
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{ |
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int (*_mcrypt_get_key_size) (void); |
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|
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_mcrypt_get_key_size = mcrypt_dlsym(td->algorithm_handle, "_mcrypt_get_key_size"); |
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return _mcrypt_get_key_size(); |
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} |
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|
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WIN32DLL_DEFINE |
330 |
const int *mcrypt_enc_get_supported_key_sizes(MCRYPT td, int *len) |
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{ |
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int *(*_mcrypt_get_key_sizes) (int *); |
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int *size; |
334 |
|
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_mcrypt_get_key_sizes = |
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mcrypt_dlsym(td->algorithm_handle, "_mcrypt_get_supported_key_sizes"); |
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size = _mcrypt_get_key_sizes(len); |
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|
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return size; |
340 |
} |
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|
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WIN32DLL_DEFINE |
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int mcrypt_enc_is_block_algorithm(MCRYPT td) |
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{ |
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int (*_is_block_algorithm) (void); |
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|
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_is_block_algorithm = mcrypt_dlsym(td->algorithm_handle, "_is_block_algorithm"); |
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return _is_block_algorithm(); |
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} |
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|
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WIN32DLL_DEFINE |
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const char *mcrypt_enc_get_algorithms_name(MCRYPT td) |
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{ |
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const char *(*_mcrypt_get_algorithms_name) (void); |
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|
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_mcrypt_get_algorithms_name = |
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mcrypt_dlsym(td->algorithm_handle, "_mcrypt_get_algorithms_name"); |
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return _mcrypt_get_algorithms_name(); |
359 |
} |
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|
361 |
WIN32DLL_DEFINE |
362 |
int init_mcrypt(MCRYPT td, void *buf, void *a, int b, void *c) |
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{ |
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int (*_init_mcrypt) (void *, void *, int, void *, int); |
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|
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_init_mcrypt = mcrypt_dlsym(td->mode_handle, "_init_mcrypt"); |
367 |
return _init_mcrypt(buf, a, b, c, mcrypt_enc_get_block_size(td)); |
368 |
} |
369 |
|
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WIN32DLL_DEFINE |
371 |
int end_mcrypt(MCRYPT td, void *buf) |
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{ |
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int (*_end_mcrypt) (void *); |
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|
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_end_mcrypt = mcrypt_dlsym(td->mode_handle, "_end_mcrypt"); |
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return _end_mcrypt(buf); |
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} |
378 |
|
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WIN32DLL_DEFINE |
380 |
int mcrypt(MCRYPT td, void *buf, void *a, int b) |
381 |
{ |
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int (*_mcrypt) (void *, void *, int, int, void *, void *, void*); |
383 |
_mcrypt = td->m_encrypt; |
384 |
|
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return _mcrypt(buf, a, b, mcrypt_enc_get_block_size(td), td->akey, |
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td->a_encrypt, td->a_decrypt); |
387 |
} |
388 |
|
389 |
WIN32DLL_DEFINE |
390 |
int mdecrypt(MCRYPT td, void *buf, void *a, int b) |
391 |
{ |
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int (*_mdecrypt) (void *, void *, int, int, void *, void *, void*); |
393 |
|
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_mdecrypt = td->m_decrypt; |
395 |
return _mdecrypt(buf, a, b, mcrypt_enc_get_block_size(td), |
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td->akey, td->a_encrypt, td->a_decrypt); |
397 |
} |
398 |
|
399 |
WIN32DLL_DEFINE |
400 |
const char *mcrypt_enc_get_modes_name(MCRYPT td) |
401 |
{ |
402 |
const char *(*_mcrypt_get_modes_name) (void); |
403 |
|
404 |
_mcrypt_get_modes_name = mcrypt_dlsym(td->mode_handle, "_mcrypt_get_modes_name"); |
405 |
return _mcrypt_get_modes_name(); |
406 |
} |
407 |
|
408 |
WIN32DLL_DEFINE |
409 |
int mcrypt_enc_is_block_mode(MCRYPT td) |
410 |
{ |
411 |
int (*_is_block_mode) (void); |
412 |
|
413 |
_is_block_mode = mcrypt_dlsym(td->mode_handle, "_is_block_mode"); |
414 |
return _is_block_mode(); |
415 |
} |
416 |
|
417 |
WIN32DLL_DEFINE |
418 |
int mcrypt_enc_mode_has_iv(MCRYPT td) |
419 |
{ |
420 |
int (*_has_iv) (void); |
421 |
|
422 |
_has_iv = mcrypt_dlsym(td->mode_handle, "_has_iv"); |
423 |
return _has_iv(); |
424 |
} |
425 |
|
426 |
WIN32DLL_DEFINE |
427 |
int mcrypt_enc_is_block_algorithm_mode(MCRYPT td) |
428 |
{ |
429 |
int (*_is_a_block_mode) (void); |
430 |
|
431 |
_is_a_block_mode = mcrypt_dlsym(td->mode_handle, "_is_block_algorithm_mode"); |
432 |
return _is_a_block_mode(); |
433 |
} |
434 |
|
435 |
WIN32DLL_DEFINE |
436 |
int mcrypt_enc_self_test(MCRYPT td) |
437 |
{ |
438 |
int (*_self_test) (void); |
439 |
|
440 |
_self_test = mcrypt_dlsym(td->algorithm_handle, "_mcrypt_self_test"); |
441 |
|
442 |
return _self_test(); |
443 |
} |
444 |
|
445 |
WIN32DLL_DEFINE |
446 |
int mcrypt_module_self_test(char *algorithm, char *a_directory) |
447 |
{ |
448 |
int i; |
449 |
void* rr; |
450 |
mcrypt_dlhandle _handle; |
451 |
int (*_self_test) (void); |
452 |
const char* error; |
453 |
|
454 |
if (lt_dlinit() != 0) { |
455 |
return MCRYPT_UNKNOWN_ERROR; |
456 |
} |
457 |
|
458 |
rr = mcrypt_dlopen(&_handle, a_directory, NULL, algorithm); |
459 |
|
460 |
if (!rr) { |
461 |
error=lt_dlerror(); |
462 |
if (error!=NULL) fputs( error, stderr); |
463 |
fputs("\n", stderr); |
464 |
lt_dlexit(); |
465 |
return MCRYPT_UNKNOWN_ERROR; |
466 |
} |
467 |
|
468 |
_self_test = mcrypt_dlsym(_handle, "_mcrypt_self_test"); |
469 |
|
470 |
i = _self_test(); |
471 |
|
472 |
mcrypt_dlclose(_handle); |
473 |
if (lt_dlexit() != 0) { |
474 |
return MCRYPT_UNKNOWN_ERROR; |
475 |
} |
476 |
|
477 |
return i; |
478 |
} |
479 |
|
480 |
WIN32DLL_DEFINE |
481 |
int mcrypt_module_algorithm_version(char *algorithm, char *a_directory) |
482 |
{ |
483 |
int i; |
484 |
mcrypt_dlhandle _handle; |
485 |
int (*_version) (void); |
486 |
const char* error; |
487 |
void* rr; |
488 |
|
489 |
if (lt_dlinit() != 0) { |
490 |
return MCRYPT_UNKNOWN_ERROR; |
491 |
} |
492 |
|
493 |
rr = mcrypt_dlopen(&_handle, a_directory, NULL, algorithm); |
494 |
if (!rr) { |
495 |
error=lt_dlerror(); |
496 |
if (error!=NULL) fputs( error, stderr); |
497 |
fputs("\n", stderr); |
498 |
return MCRYPT_UNKNOWN_ERROR; |
499 |
} |
500 |
|
501 |
_version = mcrypt_dlsym(_handle, "_mcrypt_algorithm_version"); |
502 |
|
503 |
i = _version(); |
504 |
|
505 |
mcrypt_dlclose(_handle); |
506 |
if (lt_dlexit() != 0) { |
507 |
return MCRYPT_UNKNOWN_ERROR; |
508 |
} |
509 |
|
510 |
return i; |
511 |
} |
512 |
|
513 |
WIN32DLL_DEFINE |
514 |
int mcrypt_module_mode_version(char *mode, char *m_directory) |
515 |
{ |
516 |
int i; |
517 |
mcrypt_dlhandle _handle; |
518 |
int (*_version) (void); |
519 |
const char* error; |
520 |
void * rr; |
521 |
|
522 |
if (lt_dlinit() != 0) { |
523 |
return MCRYPT_UNKNOWN_ERROR; |
524 |
} |
525 |
|
526 |
rr = mcrypt_dlopen( &_handle, m_directory, NULL, mode); |
527 |
if (!rr) { |
528 |
error=lt_dlerror(); |
529 |
if(error!=NULL) fputs(error, stderr); |
530 |
fputs("\n", stderr); |
531 |
return MCRYPT_UNKNOWN_ERROR; |
532 |
} |
533 |
|
534 |
_version = mcrypt_dlsym( _handle, "_mcrypt_mode_version"); |
535 |
|
536 |
i = _version(); |
537 |
|
538 |
mcrypt_dlclose(_handle); |
539 |
if (lt_dlexit() != 0) { |
540 |
return MCRYPT_UNKNOWN_ERROR; |
541 |
} |
542 |
|
543 |
return i; |
544 |
} |
545 |
|
546 |
WIN32DLL_DEFINE |
547 |
int mcrypt_module_is_block_algorithm(char *algorithm, char *a_directory) |
548 |
{ |
549 |
int i; |
550 |
mcrypt_dlhandle _handle; |
551 |
int (*_is_block_algorithm) (void); |
552 |
const char* error; |
553 |
void * rr; |
554 |
|
555 |
if (lt_dlinit() != 0) { |
556 |
return MCRYPT_UNKNOWN_ERROR; |
557 |
} |
558 |
|
559 |
rr = mcrypt_dlopen( &_handle, a_directory, NULL, algorithm); |
560 |
if (!rr) { |
561 |
error=lt_dlerror(); |
562 |
if(error!=NULL) fputs( error, stderr); |
563 |
fputs("\n", stderr); |
564 |
return MCRYPT_UNKNOWN_ERROR; |
565 |
} |
566 |
|
567 |
_is_block_algorithm = mcrypt_dlsym(_handle, "_is_block_algorithm"); |
568 |
|
569 |
i = _is_block_algorithm(); |
570 |
|
571 |
mcrypt_dlclose(_handle); |
572 |
if (lt_dlexit() != 0) { |
573 |
return MCRYPT_UNKNOWN_ERROR; |
574 |
} |
575 |
|
576 |
return i; |
577 |
} |
578 |
|
579 |
WIN32DLL_DEFINE |
580 |
int mcrypt_module_is_block_algorithm_mode(char *mode, char *m_directory) |
581 |
{ |
582 |
int i; |
583 |
mcrypt_dlhandle _handle; |
584 |
int (*_is_a_block_mode) (void); |
585 |
const char* error; |
586 |
void * rr; |
587 |
|
588 |
if (lt_dlinit() != 0) { |
589 |
return MCRYPT_UNKNOWN_ERROR; |
590 |
} |
591 |
|
592 |
rr = mcrypt_dlopen( &_handle, m_directory, NULL, mode); |
593 |
if (!rr) { |
594 |
error=lt_dlerror(); |
595 |
if(error!=NULL) fputs( error, stderr); |
596 |
fputs("\n", stderr); |
597 |
return MCRYPT_UNKNOWN_ERROR; |
598 |
} |
599 |
|
600 |
_is_a_block_mode = mcrypt_dlsym(_handle, "_is_block_algorithm_mode"); |
601 |
|
602 |
i = _is_a_block_mode(); |
603 |
|
604 |
mcrypt_dlclose(_handle); |
605 |
if (lt_dlexit() != 0) { |
606 |
return MCRYPT_UNKNOWN_ERROR; |
607 |
} |
608 |
|
609 |
return i; |
610 |
} |
611 |
|
612 |
WIN32DLL_DEFINE |
613 |
int mcrypt_module_is_block_mode(char *mode, char *m_directory) |
614 |
{ |
615 |
void * rr; |
616 |
int i; |
617 |
mcrypt_dlhandle _handle; |
618 |
int (*_is_block_mode) (void); |
619 |
const char* error; |
620 |
|
621 |
if (lt_dlinit() != 0) { |
622 |
return MCRYPT_UNKNOWN_ERROR; |
623 |
} |
624 |
|
625 |
rr = mcrypt_dlopen( &_handle, m_directory, NULL, mode); |
626 |
if (!rr) { |
627 |
error=lt_dlerror(); |
628 |
if(error!=NULL) fputs( error, stderr); |
629 |
fputs("\n", stderr); |
630 |
return MCRYPT_UNKNOWN_ERROR; |
631 |
} |
632 |
|
633 |
_is_block_mode = mcrypt_dlsym(_handle, "_is_block_mode"); |
634 |
|
635 |
i = _is_block_mode(); |
636 |
|
637 |
mcrypt_dlclose(_handle); |
638 |
if (lt_dlexit() != 0) { |
639 |
return MCRYPT_UNKNOWN_ERROR; |
640 |
} |
641 |
|
642 |
return i; |
643 |
} |
644 |
|
645 |
WIN32DLL_DEFINE |
646 |
int mcrypt_module_get_algo_block_size(char *algorithm, char *a_directory) |
647 |
{ |
648 |
int i; |
649 |
mcrypt_dlhandle _handle; |
650 |
int (*_get_block_size) (void); |
651 |
const char* error; |
652 |
void * rr; |
653 |
|
654 |
if (lt_dlinit() != 0) { |
655 |
return MCRYPT_UNKNOWN_ERROR; |
656 |
} |
657 |
|
658 |
rr = mcrypt_dlopen( &_handle, a_directory, NULL, algorithm); |
659 |
if (!rr) { |
660 |
error=lt_dlerror(); |
661 |
if(error!=NULL) fputs( error, stderr); |
662 |
fputs("\n", stderr); |
663 |
return MCRYPT_UNKNOWN_ERROR; |
664 |
} |
665 |
|
666 |
_get_block_size = mcrypt_dlsym(_handle, "_mcrypt_get_block_size"); |
667 |
|
668 |
i = _get_block_size(); |
669 |
|
670 |
mcrypt_dlclose(_handle); |
671 |
if (lt_dlexit() != 0) { |
672 |
return MCRYPT_UNKNOWN_ERROR; |
673 |
} |
674 |
|
675 |
return i; |
676 |
} |
677 |
|
678 |
WIN32DLL_DEFINE |
679 |
int mcrypt_module_get_algo_key_size(char *algorithm, char *a_directory) |
680 |
{ |
681 |
int i; |
682 |
mcrypt_dlhandle _handle; |
683 |
int (*_get_key_size) (void); |
684 |
const char* error; |
685 |
void * rr; |
686 |
|
687 |
if (lt_dlinit() != 0) { |
688 |
return MCRYPT_UNKNOWN_ERROR; |
689 |
} |
690 |
|
691 |
rr = mcrypt_dlopen( &_handle, a_directory, NULL, algorithm); |
692 |
if (!rr) { |
693 |
error=lt_dlerror(); |
694 |
if(error!=NULL) fputs( error, stderr); |
695 |
fputs("\n", stderr); |
696 |
return MCRYPT_UNKNOWN_ERROR; |
697 |
} |
698 |
|
699 |
_get_key_size = mcrypt_dlsym(_handle, "_mcrypt_get_key_size"); |
700 |
|
701 |
i = _get_key_size(); |
702 |
|
703 |
mcrypt_dlclose(_handle); |
704 |
if (lt_dlexit() != 0) { |
705 |
return MCRYPT_UNKNOWN_ERROR; |
706 |
} |
707 |
|
708 |
return i; |
709 |
} |
710 |
|
711 |
WIN32DLL_DEFINE |
712 |
int *mcrypt_module_get_algo_supported_key_sizes(char *algorithm, |
713 |
char *a_directory, |
714 |
int *len) |
715 |
{ |
716 |
mcrypt_dlhandle _handle; |
717 |
int *(*_mcrypt_get_key_sizes) (int *); |
718 |
int *size; |
719 |
int * ret_size; |
720 |
const char* error; |
721 |
void * rr; |
722 |
|
723 |
if (lt_dlinit() != 0) { |
724 |
*len = 0; |
725 |
return NULL; |
726 |
} |
727 |
|
728 |
rr = mcrypt_dlopen( &_handle, a_directory, NULL, algorithm); |
729 |
if (!rr) { |
730 |
error=lt_dlerror(); |
731 |
if(error!=NULL) fputs( error, stderr); |
732 |
fputs("\n", stderr); |
733 |
*len = 0; |
734 |
return NULL; |
735 |
} |
736 |
|
737 |
_mcrypt_get_key_sizes = |
738 |
mcrypt_dlsym(_handle, "_mcrypt_get_supported_key_sizes"); |
739 |
|
740 |
size = _mcrypt_get_key_sizes(len); |
741 |
if (len!=0) { |
742 |
ret_size = malloc( (*len)*sizeof(int)); |
743 |
if (ret_size!=NULL) { |
744 |
memcpy( ret_size, size, (*len)*sizeof(int)); |
745 |
} |
746 |
} |
747 |
|
748 |
mcrypt_dlclose(_handle); |
749 |
if (lt_dlexit() != 0) { |
750 |
return NULL; |
751 |
} |
752 |
|
753 |
return ret_size; |
754 |
} |