1 |
/* |
/* |
2 |
* Copyright (C) 1998,1999 Nikos Mavroyanopoulos |
* Copyright (C) 1998,1999,2001 Nikos Mavroyanopoulos |
3 |
* |
* |
4 |
* This library is free software; you can redistribute it and/or modify it under the terms of the |
* This library is free software; you can redistribute it and/or modify it under the terms of the |
5 |
* GNU Library General Public License as published by the Free Software |
* GNU Library General Public License as published by the Free Software |
19 |
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20 |
/* $Id$ */ |
/* $Id$ */ |
21 |
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#ifndef LIBDEFS_H |
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#define LIBDEFS_H |
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22 |
#include <libdefs.h> |
#include <libdefs.h> |
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#endif |
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23 |
#include <bzero.h> |
#include <bzero.h> |
24 |
#include <xmemory.h> |
#include <xmemory.h> |
25 |
#include <mcrypt_internal.h> |
#include <mcrypt_internal.h> |
26 |
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27 |
#if 0 |
int mcrypt_algorithm_module_ok(const char *file, const char *directory); |
28 |
extern int preloaded_symbols; |
int mcrypt_mode_module_ok(const char *file, const char *directory); |
29 |
#endif |
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30 |
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void *mcrypt_dlopen(mcrypt_dlhandle * handle, const char *a_directory, |
31 |
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const char *m_directory, const char *filename); |
32 |
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33 |
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#ifdef HAVE_READDIR_R |
34 |
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# define MAXPATHLEN 256 |
35 |
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#endif |
36 |
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37 |
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WIN32DLL_DEFINE char *mcrypt_readdir(DIR * dirstream) |
38 |
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{ |
39 |
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40 |
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char *result; |
41 |
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struct dirent *ret = NULL; |
42 |
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#ifdef HAVE_READDIR_R |
43 |
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struct dirent ret2[sizeof(struct dirent) + MAXPATHLEN]; |
44 |
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#endif |
45 |
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46 |
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#ifdef HAVE_READDIR_R |
47 |
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readdir_r(dirstream, ret2, &ret); |
48 |
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#else |
49 |
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ret = readdir(dirstream); |
50 |
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#endif |
51 |
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if (ret == NULL) |
52 |
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return NULL; |
53 |
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54 |
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result = strdup(ret->d_name); |
55 |
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if (result == NULL) { |
56 |
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return NULL; |
57 |
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} |
58 |
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59 |
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return result; |
60 |
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61 |
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} |
62 |
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63 |
int mcrypt_algorithm_module_ok(const char *file, const char* directory); |
extern const mcrypt_preloaded mps[]; |
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int mcrypt_mode_module_ok(const char *file, const char* directory); |
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64 |
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65 |
char ** mcrypt_list_algorithms(char *libdir, int *size) |
WIN32DLL_DEFINE char **mcrypt_list_algorithms(const char *libdir, |
66 |
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int *size) |
67 |
{ |
{ |
68 |
DIR *pdir; |
DIR *pdir; |
69 |
char directory[500]; |
char directory[512]; |
70 |
struct dirent *dirname; |
char *dirname; |
71 |
char **filename = NULL, *ptr; |
char **filename = NULL, *ptr; |
72 |
int tmpsize; |
int tmpsize, i = 0; |
73 |
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*size = 0; |
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74 |
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75 |
if (libdir == NULL) { |
*size = 0; |
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strcpy(directory, LIBDIR); |
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} else { |
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strcpy(directory, libdir); |
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} |
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76 |
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77 |
#if 0 |
while (mps[i].name != 0 || mps[i].address != 0) { |
78 |
if (preloaded_symbols!=0) { /* We have preloaded symbols */ |
if (mps[i].name != NULL && mps[i].address == NULL) { |
79 |
i=0; |
if (mcrypt_algorithm_module_ok(mps[i].name, NULL) > |
80 |
for (;;) { |
0) { |
81 |
if (mcrypt_algorithm_module_ok(lt_preloaded_symbols[i].name, NULL) > 0 ) { |
filename = |
82 |
tmpsize=strlen(lt_preloaded_symbols[i].name); |
realloc(filename, |
83 |
filename = |
((*size) + |
84 |
realloc(filename, |
1) * sizeof(char *)); |
85 |
(*size + |
if (filename == NULL) { |
86 |
1) * |
goto freeall; |
87 |
sizeof(char*)); |
} |
88 |
filename[*size] = |
filename[*size] = strdup(mps[i].name); |
89 |
calloc(1, tmpsize + 1); |
if (filename[*size] == NULL) |
90 |
strcpy(filename[*size], |
goto freeall; |
91 |
lt_preloaded_symbols[i].name); |
(*size)++; |
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ptr=strrchr(filename[*size], '.'); |
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if (ptr!=NULL) *ptr='\0'; |
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(*size)++; |
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92 |
} |
} |
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if (lt_preloaded_symbols[i].address==0 && lt_preloaded_symbols[i].name==NULL) break; |
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i++; |
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93 |
} |
} |
94 |
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i++; |
95 |
} |
} |
96 |
#endif |
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97 |
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#ifdef USE_LTDL |
98 |
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99 |
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if (libdir == NULL) { |
100 |
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strncpy(directory, LIBDIR, sizeof(directory)-1); |
101 |
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} else { |
102 |
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strncpy(directory, libdir, sizeof(directory)-1); |
103 |
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} |
104 |
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directory[ sizeof(directory)-1] = 0; |
105 |
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106 |
pdir = opendir(directory); |
pdir = opendir(directory); |
107 |
if (pdir == NULL) { |
if (pdir == NULL) { |
108 |
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#ifdef DEBUG |
109 |
fprintf(stderr, "Unable to open directory %s.\n", |
fprintf(stderr, "Unable to open directory %s.\n", |
110 |
directory); |
directory); |
111 |
return NULL; |
#endif |
112 |
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return filename; |
113 |
} |
} |
114 |
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|
115 |
for (;;) { |
for (;;) { |
116 |
dirname = readdir(pdir); |
dirname = mcrypt_readdir(pdir); |
117 |
if (dirname != NULL) { |
if (dirname != NULL) { |
118 |
#ifdef DT_REG |
tmpsize = strlen(dirname); |
119 |
if ((dirname->d_type == DT_REG) |
if (tmpsize > 3) { |
120 |
|| (dirname->d_type == DT_UNKNOWN)) { |
|
121 |
#endif |
if (mcrypt_algorithm_module_ok |
122 |
if (strlen(dirname->d_name) > 3) { |
(dirname, directory) > 0) { |
123 |
tmpsize = strlen(dirname->d_name); |
ptr = strrchr(dirname, '.'); |
124 |
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if (ptr != NULL) { |
125 |
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*ptr = '\0'; |
126 |
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tmpsize = strlen(dirname); |
127 |
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} |
128 |
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129 |
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if (_mcrypt_search_symlist_lib |
130 |
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(dirname) != NULL) { |
131 |
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free(dirname); |
132 |
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continue; /* it's already in the list, |
133 |
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* since it's included in the lib. |
134 |
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*/ |
135 |
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} |
136 |
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137 |
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filename = |
138 |
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realloc(filename, |
139 |
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(*size + |
140 |
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1) * sizeof(char *)); |
141 |
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if (filename == NULL) { |
142 |
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free(dirname); |
143 |
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goto freeall; |
144 |
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} |
145 |
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|
146 |
if (mcrypt_algorithm_module_ok(dirname->d_name, directory) > 0 ) { |
filename[*size] = strdup(dirname); |
147 |
filename = |
if (filename[*size] == NULL) { |
148 |
realloc(filename, |
free(dirname); |
149 |
(*size + |
goto freeall; |
|
1) * |
|
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sizeof(char |
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*)); |
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filename[*size] = |
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calloc(1, tmpsize + 1); |
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strcpy(filename[*size], |
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dirname->d_name); |
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ptr=strrchr(filename[*size], '.'); |
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if (ptr!=NULL) *ptr='\0'; |
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(*size)++; |
|
150 |
} |
} |
151 |
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(*size)++; |
152 |
} |
} |
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#ifdef DT_REG |
|
153 |
} |
} |
154 |
#endif |
free(dirname); |
155 |
} else { |
} else break; |
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break; |
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} |
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156 |
} |
} |
157 |
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158 |
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|
159 |
closedir(pdir); |
closedir(pdir); |
160 |
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161 |
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#endif |
162 |
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|
163 |
return filename; |
return filename; |
164 |
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165 |
|
freeall: |
166 |
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for (i = 0; i < (*size); i++) { |
167 |
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free(filename[i]); |
168 |
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} |
169 |
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free(filename); |
170 |
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return NULL; |
171 |
} |
} |
172 |
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|
173 |
char ** mcrypt_list_modes(char *libdir, int *size) |
WIN32DLL_DEFINE char **mcrypt_list_modes(const char *libdir, int *size) |
174 |
{ |
{ |
175 |
DIR *pdir; |
DIR *pdir; |
176 |
char directory[500]; |
char directory[512]; |
177 |
struct dirent *dirname; |
char *dirname; |
178 |
char **filename = NULL, *ptr; |
char **filename = NULL, *ptr; |
179 |
int tmpsize; |
int tmpsize; |
180 |
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int i = 0; |
181 |
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|
182 |
if (libdir == NULL) { |
*size = 0; |
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strcpy(directory, LIBDIR); |
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} else { |
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strcpy(directory, libdir); |
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} |
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lt_dladdsearchdir(directory); |
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183 |
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184 |
#if 0 |
while (mps[i].name != 0 || mps[i].address != 0) { |
185 |
if (preloaded_symbols!=0) { /* We have preloaded symbols */ |
if (mps[i].name != NULL && mps[i].address == NULL) { |
186 |
i=0; |
if (mcrypt_mode_module_ok(mps[i].name, NULL) > 0) { |
187 |
for (;;) { |
filename = |
188 |
if (mcrypt_mode_module_ok(lt_preloaded_symbols[i].name, NULL) > 0 ) { |
realloc(filename, |
189 |
tmpsize=strlen(lt_preloaded_symbols[i].name); |
(*size + 1) * sizeof(char *)); |
190 |
filename = |
if (filename == NULL) { |
191 |
realloc(filename, |
goto freeall; |
192 |
(*size + |
} |
193 |
1) * |
filename[*size] = strdup(mps[i].name); |
194 |
sizeof(char*)); |
if (filename[*size] == NULL) |
195 |
filename[*size] = |
goto freeall; |
196 |
calloc(1, tmpsize + 1); |
(*size)++; |
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strcpy(filename[*size], |
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lt_preloaded_symbols[i].name); |
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ptr=strrchr(filename[*size], '.'); |
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if (ptr!=NULL) *ptr='\0'; |
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(*size)++; |
|
197 |
} |
} |
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if (lt_preloaded_symbols[i].address==0 && lt_preloaded_symbols[i].name==NULL) break; |
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i++; |
|
198 |
} |
} |
199 |
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i++; |
200 |
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} |
201 |
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202 |
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#ifdef USE_LTDL |
203 |
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204 |
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if (libdir == NULL) { |
205 |
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strncpy(directory, LIBDIR, sizeof(directory)-1); |
206 |
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} else { |
207 |
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strncpy(directory, libdir, sizeof(directory)-1); |
208 |
} |
} |
209 |
#endif |
directory[ sizeof(directory)-1] = 0; |
210 |
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|
211 |
pdir = opendir(directory); |
pdir = opendir(directory); |
212 |
if (pdir == NULL) { |
if (pdir == NULL) { |
213 |
|
#ifdef DEBUG |
214 |
fprintf(stderr, "Unable to open directory %s.\n", |
fprintf(stderr, "Unable to open directory %s.\n", |
215 |
directory); |
directory); |
216 |
return NULL; |
#endif |
217 |
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return filename; |
218 |
} |
} |
219 |
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*size = 0; |
|
220 |
for (;;) { |
for (;;) { |
221 |
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222 |
dirname = readdir(pdir); |
dirname = mcrypt_readdir(pdir); |
223 |
if (dirname != NULL) { |
if (dirname != NULL) { |
224 |
#ifdef DT_REG |
tmpsize = strlen(dirname); |
225 |
if ((dirname->d_type == DT_REG) |
if (tmpsize > 3) { |
226 |
|| (dirname->d_type == DT_UNKNOWN)) { |
if (mcrypt_mode_module_ok |
227 |
#endif |
(dirname, directory) > 0) { |
228 |
if (strlen(dirname->d_name) > 3) { |
|
229 |
tmpsize = strlen(dirname->d_name); |
ptr = strrchr(dirname, '.'); |
230 |
if ( mcrypt_mode_module_ok(dirname->d_name, directory) > 0 ) { |
if (ptr != NULL) { |
231 |
filename = |
*ptr = '\0'; |
232 |
realloc(filename, |
tmpsize = strlen(dirname); |
233 |
(*size + |
} |
234 |
1) * |
if (_mcrypt_search_symlist_lib |
235 |
sizeof(char |
(dirname) != NULL) { |
236 |
*)); |
free(dirname); |
237 |
filename[*size] = |
continue; /* it's already in the list, |
238 |
calloc(1, tmpsize + 1); |
* since it's included in the lib. |
239 |
strcpy(filename[*size], |
*/ |
|
dirname->d_name); |
|
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ptr=strrchr(filename[*size], '.'); |
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if (ptr!=NULL) *ptr='\0'; |
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(*size)++; |
|
240 |
} |
} |
241 |
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filename = |
242 |
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realloc(filename, |
243 |
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(*size + |
244 |
|
1) * sizeof(char *)); |
245 |
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if (filename == NULL) { |
246 |
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free(dirname); |
247 |
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goto freeall; |
248 |
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} |
249 |
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250 |
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filename[*size] = strdup(dirname); |
251 |
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if (filename[*size] == NULL) { |
252 |
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free(dirname); |
253 |
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goto freeall; |
254 |
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} |
255 |
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(*size)++; |
256 |
} |
} |
|
#ifdef DT_REG |
|
257 |
} |
} |
258 |
#endif |
free(dirname); |
259 |
} else { |
} else { |
260 |
break; |
break; |
261 |
} |
} |
263 |
} |
} |
264 |
|
|
265 |
closedir(pdir); |
closedir(pdir); |
266 |
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#endif |
267 |
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|
268 |
return filename; |
return filename; |
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} |
|
269 |
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|
270 |
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freeall: |
271 |
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for (i = 0; i < (*size); i++) { |
272 |
|
free(filename[i]); |
273 |
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} |
274 |
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free(filename); |
275 |
|
return NULL; |
276 |
|
} |
277 |
|
|
278 |
void mcrypt_free_p(char** p, int size) { |
WIN32DLL_DEFINE void mcrypt_free_p(char **p, int size) |
279 |
int i; |
{ |
280 |
|
int i; |
281 |
|
|
282 |
for (i=0;i<size;i++) { |
for (i = 0; i < size; i++) { |
283 |
free(p[i]); |
free(p[i]); |
284 |
} |
} |
285 |
free(p); |
free(p); |
286 |
} |
} |
287 |
|
|
288 |
int mcrypt_algorithm_module_ok(const char *file, const char* directory) |
WIN32DLL_DEFINE |
289 |
|
int mcrypt_algorithm_module_ok(const char *file, const char *directory) |
290 |
{ |
{ |
291 |
int i; |
word32 ret = 1; |
292 |
word32 ret; |
mcrypt_dlhandle _handle; |
293 |
lt_dlhandle *_handle; |
void *rr; |
294 |
int (*_version) (void); |
int (*_version) (void); |
295 |
|
|
296 |
if (file == NULL && directory==NULL) { |
if (file == NULL && directory == NULL) { |
297 |
return MCRYPT_UNKNOWN_ERROR; |
return MCRYPT_UNKNOWN_ERROR; |
298 |
} |
} |
299 |
|
|
300 |
if (lt_dlinit()!=0) { |
if (lt_dlinit() != 0) { |
301 |
return MCRYPT_UNKNOWN_ERROR; |
return MCRYPT_UNKNOWN_ERROR; |
302 |
} |
} |
|
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i=lt_dladdsearchdir(directory); |
|
303 |
|
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304 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
rr = mcrypt_dlopen(&_handle, directory, NULL, file); |
305 |
_handle = lt_dlopenext(file); |
|
306 |
if (!_handle) { |
if (!rr) { |
|
_handle = lt_dlopen(file); |
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} |
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if (_handle==NULL) { |
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/* fputs(lt_dlerror(), stderr); |
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* fputs("\n", stderr); |
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*/ |
|
307 |
lt_dlexit(); |
lt_dlexit(); |
308 |
return MCRYPT_UNKNOWN_ERROR; |
return MCRYPT_UNKNOWN_ERROR; |
309 |
} |
} |
310 |
|
|
311 |
|
|
312 |
_version = lt_dlsym(_handle, "_mcrypt_algorithm_version"); |
_version = mcrypt_dlsym(_handle, "_mcrypt_algorithm_version"); |
313 |
|
|
314 |
if (_version==NULL) { |
if (_version == NULL) { |
315 |
lt_dlclose(_handle); |
mcrypt_dlclose(_handle); |
316 |
lt_dlexit(); |
lt_dlexit(); |
317 |
return MCRYPT_UNKNOWN_ERROR; |
return MCRYPT_UNKNOWN_ERROR; |
318 |
} |
} |
319 |
|
|
320 |
ret = _version(); |
ret = _version(); |
321 |
|
|
322 |
lt_dlclose(_handle); |
mcrypt_dlclose(_handle); |
323 |
|
|
324 |
lt_dlexit(); |
lt_dlexit(); |
325 |
|
|
326 |
return ret; |
return ret; |
327 |
|
|
328 |
} |
} |
329 |
|
|
330 |
int mcrypt_mode_module_ok(const char *file, const char* directory) |
WIN32DLL_DEFINE |
331 |
|
int mcrypt_mode_module_ok(const char *file, const char *directory) |
332 |
{ |
{ |
|
int i; |
|
333 |
word32 ret; |
word32 ret; |
334 |
lt_dlhandle *_handle; |
mcrypt_dlhandle _handle; |
335 |
|
void *rr; |
336 |
int (*_version) (void); |
int (*_version) (void); |
337 |
|
|
338 |
if (file == NULL && directory==NULL) { |
if (file == NULL && directory == NULL) { |
339 |
return MCRYPT_UNKNOWN_ERROR; |
return MCRYPT_UNKNOWN_ERROR; |
340 |
} |
} |
341 |
|
|
342 |
if (lt_dlinit()!=0) { |
if (lt_dlinit() != 0) { |
343 |
return MCRYPT_UNKNOWN_ERROR; |
return MCRYPT_UNKNOWN_ERROR; |
|
} |
|
|
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
|
|
i=lt_dladdsearchdir(directory); |
|
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|
|
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_handle = lt_dlopenext(file); |
|
|
if (!_handle) { |
|
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_handle = lt_dlopen(file); |
|
344 |
} |
} |
345 |
|
|
346 |
if (!_handle) { |
rr = mcrypt_dlopen(&_handle, directory, NULL, file); |
347 |
|
if (!rr) { |
348 |
lt_dlexit(); |
lt_dlexit(); |
349 |
return MCRYPT_UNKNOWN_ERROR; |
return MCRYPT_UNKNOWN_ERROR; |
350 |
} |
} |
|
|
|
351 |
|
|
|
_version = lt_dlsym(_handle, "_mcrypt_mode_version"); |
|
352 |
|
|
353 |
if (_version==NULL) { |
_version = mcrypt_dlsym(_handle, "_mcrypt_mode_version"); |
354 |
lt_dlclose(_handle); |
|
355 |
|
if (_version == NULL) { |
356 |
|
mcrypt_dlclose(_handle); |
357 |
lt_dlexit(); |
lt_dlexit(); |
358 |
return MCRYPT_UNKNOWN_ERROR; |
return MCRYPT_UNKNOWN_ERROR; |
359 |
} |
} |
360 |
|
|
361 |
ret = _version(); |
ret = _version(); |
362 |
|
|
363 |
lt_dlclose(_handle); |
mcrypt_dlclose(_handle); |
364 |
lt_dlexit(); |
lt_dlexit(); |
365 |
|
|
366 |
return ret; |
return ret; |
367 |
|
|
368 |
} |
} |
|
#if 0 |
|
|
char ** mcrypt_list_algorithms(char *libdir, int *size) |
|
|
{ |
|
369 |
|
|
370 |
char **filename; |
/* Taken from libgcrypt */ |
|
int i; |
|
|
|
|
|
*size = 21; |
|
|
|
|
|
filename = malloc( (*size)*sizeof(char*)); |
|
|
|
|
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for (i=0; i<*size; i++) { |
|
|
filename[i]=malloc(strlen(algos[i])+1); |
|
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strcpy(filename[i], algos[i]); |
|
|
} |
|
|
|
|
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return filename; |
|
371 |
|
|
372 |
} |
static const char *parse_version_number(const char *s, int *number) |
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|
|
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char ** mcrypt_list_modes(char *libdir, int *size) |
|
373 |
{ |
{ |
374 |
char modes[6][64] = { "stream", "ecb", "cbc", "cfb", "ofb", |
int val = 0; |
|
"nofb" }; |
|
|
char **filename; |
|
|
int i; |
|
|
|
|
|
*size = 6; |
|
|
|
|
|
filename = malloc( (*size)*sizeof(char*)); |
|
|
|
|
|
for (i=0; i<*size; i++) { |
|
|
filename[i]=malloc(strlen(modes[i])+1); |
|
|
strcpy(filename[i], modes[i]); |
|
|
} |
|
375 |
|
|
376 |
return filename; |
if (*s == '0' && isdigit(s[1])) |
377 |
} |
return NULL; /* leading zeros are not allowed */ |
378 |
|
for (; isdigit(*s); s++) { |
379 |
|
val *= 10; |
380 |
void mcrypt_free_p(char** p, int size) { |
val += *s - '0'; |
|
int i; |
|
|
|
|
|
for (i=0;i<size;i++) { |
|
|
free(p[i]); |
|
381 |
} |
} |
382 |
free(p); |
*number = val; |
383 |
|
return val < 0 ? NULL : s; |
384 |
} |
} |
385 |
|
|
386 |
int mcrypt_algorithm_module_ok(char *file, char* directory) |
|
387 |
|
static const char *parse_version_string(const char *s, int *major, |
388 |
|
int *minor, int *micro) |
389 |
{ |
{ |
390 |
return algo_name2num(file); |
s = parse_version_number(s, major); |
391 |
|
if (!s || *s != '.') |
392 |
|
return NULL; |
393 |
|
s++; |
394 |
|
s = parse_version_number(s, minor); |
395 |
|
if (!s || *s != '.') |
396 |
|
return NULL; |
397 |
|
s++; |
398 |
|
s = parse_version_number(s, micro); |
399 |
|
if (!s) |
400 |
|
return NULL; |
401 |
|
return s; /* patchlevel */ |
402 |
} |
} |
403 |
|
|
404 |
int mcrypt_mode_module_ok(char *file, char* directory) |
/**************** |
405 |
|
* Check that the the version of the library is at minimum the requested one |
406 |
|
* and return the version string; return NULL if the condition is not |
407 |
|
* satisfied. If a NULL is passed to this function, no check is done, |
408 |
|
* but the version string is simply returned. |
409 |
|
*/ |
410 |
|
const char *mcrypt_check_version(const char *req_version) |
411 |
{ |
{ |
412 |
return mode_name2num(file); |
const char *ver = VERSION; |
413 |
|
int my_major, my_minor, my_micro; |
414 |
|
int rq_major, rq_minor, rq_micro; |
415 |
|
const char *my_plvl, *rq_plvl; |
416 |
|
|
417 |
|
if (!req_version) |
418 |
|
return ver; |
419 |
|
|
420 |
|
my_plvl = |
421 |
|
parse_version_string(ver, &my_major, &my_minor, &my_micro); |
422 |
|
if (!my_plvl) |
423 |
|
return NULL; /* very strange our own version is bogus */ |
424 |
|
rq_plvl = parse_version_string(req_version, &rq_major, &rq_minor, |
425 |
|
&rq_micro); |
426 |
|
if (!rq_plvl) |
427 |
|
return NULL; /* req version string is invalid */ |
428 |
|
|
429 |
|
if (my_major > rq_major |
430 |
|
|| (my_major == rq_major && my_minor > rq_minor) |
431 |
|
|| (my_major == rq_major && my_minor == rq_minor |
432 |
|
&& my_micro > rq_micro) |
433 |
|
|| (my_major == rq_major && my_minor == rq_minor |
434 |
|
&& my_micro == rq_micro |
435 |
|
&& strcmp(my_plvl, rq_plvl) >= 0)) { |
436 |
|
return ver; |
437 |
|
} |
438 |
|
return NULL; |
439 |
} |
} |
|
|
|
|
#endif |
|