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Rev | Author | Line No. | Line |
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5598 | pavelyakov | 1 | #ifndef INCLUDE_DLL_H |
2 | #define INCLUDE_DLL_H |
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5676 | pavelyakov | 3 | #print "[include |
5598 | pavelyakov | 4 | |
5631 | pavelyakov | 5 | #ifndef INCLUDE_FILESYSTEM_H |
5626 | leency | 6 | #include "../lib/file_system.h" |
7 | #endif |
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8 | |||
5631 | pavelyakov | 9 | #ifdef LANG_RUS |
10 | #define _TEXT_ERROR_ADD "'Ошибка при загрузке библиотеки" |
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11 | #elif LANG_EST |
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12 | #define _TEXT_ERROR_ADD "'Viga teegi laadimisel" |
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13 | #else |
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14 | #define _TEXT_ERROR_ADD "'Error while loading library" |
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15 | #endif |
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5626 | leency | 16 | |
3067 | leency | 17 | char a_libdir[43] = "/sys/lib/\0"; |
18 | |||
5576 | pavelyakov | 19 | :inline void error_init(dword text) |
20 | { |
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21 | dword TEXT_ERROR = malloc(1024); |
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5690 | leency | 22 | sprintf(TEXT_ERROR, "%s `%s`' -E",_TEXT_ERROR_ADD,text); |
5576 | pavelyakov | 23 | notify(TEXT_ERROR); |
24 | free(TEXT_ERROR); |
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25 | } |
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26 | |||
4567 | hidnplayr | 27 | // stdcall with 1 parameter |
28 | void dll_Load() { |
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29 | asm { |
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30 | push ebp |
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31 | mov ebp, esp |
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32 | mov esi, SSDWORD[EBP+8] |
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5576 | pavelyakov | 33 | @next_lib: |
4567 | hidnplayr | 34 | mov edx, DSDWORD[ESI] |
35 | or edx, edx |
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36 | jz exit |
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37 | push esi |
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38 | mov esi, DSDWORD[ESI+4] |
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39 | mov edi, #a_libdir+9 |
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3067 | leency | 40 | |
4567 | hidnplayr | 41 | @loc01: |
42 | lodsb |
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43 | stosb |
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44 | or al, al |
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45 | jnz loc01 |
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3067 | leency | 46 | |
4567 | hidnplayr | 47 | mov eax, 68 |
48 | mov ebx, 19 |
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49 | mov ecx, #a_libdir |
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50 | int 0x40 |
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51 | or eax, eax |
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52 | jz fail |
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53 | |||
54 | push edx |
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55 | push eax |
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56 | call dll_Link |
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57 | |||
58 | push eax |
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59 | mov eax, DSDWORD[eax] |
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60 | cmp DSDWORD[EAX], '_bil' // somehow this needs to be reversed.. |
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61 | pop eax |
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62 | jnz loc02 |
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63 | |||
64 | push DSDWORD[EAX+4] |
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65 | call dll_Init |
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66 | @loc02: |
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67 | |||
68 | pop esi |
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69 | add esi, 8 |
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70 | jmp next_lib |
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71 | @exit: |
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5598 | pavelyakov | 72 | xor eax, eax |
4567 | hidnplayr | 73 | leave |
74 | ret 4 |
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75 | |||
76 | @fail: |
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77 | add esp, 4 |
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78 | xor eax, eax |
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79 | inc eax |
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80 | leave |
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81 | ret 4 |
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82 | } |
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3067 | leency | 83 | } |
84 | |||
4567 | hidnplayr | 85 | //stdcall with 2 parameters |
86 | void dll_Link() { |
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87 | asm { |
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88 | push ebp |
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89 | mov ebp, esp |
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90 | push eax |
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91 | mov esi, SSDWORD[EBP+12] |
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92 | test esi, esi |
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93 | jz done |
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94 | @next: |
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95 | lodsd |
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96 | test eax, eax |
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97 | jz done |
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98 | push eax |
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99 | push SSDWORD[EBP+8] |
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100 | call dll_GetProcAddress |
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101 | or eax, eax |
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102 | jz loc03 |
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103 | mov DSDWORD[esi-4], eax |
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104 | jmp next |
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105 | @loc03: |
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106 | mov SSDWORD[esp], 0 |
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107 | @done: |
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108 | pop eax |
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109 | leave |
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110 | ret 8 |
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111 | } |
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112 | } |
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3067 | leency | 113 | |
114 | |||
4567 | hidnplayr | 115 | //stdcall with 1 parameter |
116 | void dll_Init() { |
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117 | asm { |
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118 | push ebp |
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119 | mov ebp, esp |
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120 | pushad |
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5631 | pavelyakov | 121 | mov eax, #malloc |
122 | mov ebx, #free; |
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123 | mov ecx, #realloc; |
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4567 | hidnplayr | 124 | mov edx, #dll_Load; |
125 | call SSDWORD[EBP+8] |
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126 | popad |
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127 | leave |
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128 | ret 4 |
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129 | } |
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3067 | leency | 130 | } |
131 | |||
4567 | hidnplayr | 132 | |
133 | // stdcall with 2 parameters |
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134 | void dll_GetProcAddress(){ |
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135 | asm { |
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136 | push ebp |
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137 | mov ebp, esp |
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138 | mov edx, CSDWORD[EBP+8] |
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139 | xor eax, eax |
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140 | |||
141 | @next: |
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142 | or edx, edx |
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143 | jz end |
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144 | cmp CSDWORD[edx], 0 |
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145 | jz end |
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146 | |||
147 | push CSDWORD[EBP+12] |
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148 | push CSDWORD[EDX] |
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149 | call dll_StrCmp |
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150 | test eax, eax |
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151 | jz ok |
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152 | add edx, 8 |
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153 | jmp next |
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154 | @ok: |
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155 | mov eax, DSDWORD[EDX+4] |
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156 | @end: |
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157 | leave |
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158 | ret 8 |
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159 | } |
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3067 | leency | 160 | } |
161 | |||
4567 | hidnplayr | 162 | |
163 | // stdcall with 2 parameters |
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164 | void dll_StrCmp() { |
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165 | asm { |
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166 | push ebp |
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167 | mov ebp, esp |
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168 | push esi |
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169 | push edi |
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170 | mov esi, CSDWORD[EBP+8] |
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171 | mov edi, CSDWORD[EBP+12] |
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172 | xor eax, eax |
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173 | @label1: |
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174 | lodsb |
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175 | scasb |
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176 | jne fail |
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177 | or al, al |
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178 | jnz label1 |
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179 | jmp label_ok |
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180 | @fail: |
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181 | or eax, -1 |
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182 | @label_ok: |
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183 | pop edi |
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184 | pop esi |
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185 | leave |
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186 | ret 8 |
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187 | } |
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3067 | leency | 188 | } |
189 | |||
190 | int load_dll2(dword dllname, import_table, byte need_init) |
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191 | { |
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192 | //dword dllentry=0; |
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193 | // load DLL |
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194 | $mov eax, 68 |
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195 | $mov ebx, 19 |
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196 | ECX=dllname; |
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197 | $int 0x40 |
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198 | $test eax, eax |
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199 | $jz exit01 |
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200 | |||
201 | // initialize import |
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202 | $mov edx,eax |
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203 | ESI=import_table; |
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204 | |||
205 | @import_loop01: |
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206 | $lodsd |
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207 | $test eax,eax |
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208 | $jz import_done01 |
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209 | $push edx |
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210 | @import_find01: |
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211 | $mov ebx,DSDWORD[EDX] |
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212 | $test ebx, ebx |
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213 | $jz exit01 |
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214 | $push eax |
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215 | @nex101: |
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216 | $mov cl,DSBYTE[EAX]; |
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217 | $cmp cl,DSBYTE[EBX]; |
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218 | $jnz import_find_next01 |
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219 | $test cl,cl |
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220 | $jz import_found01 |
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221 | $inc eax |
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222 | $inc ebx |
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223 | $jmp nex101 |
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224 | @import_find_next01: |
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225 | $pop eax |
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226 | $add edx, 8 |
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227 | $jmp import_find01 |
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228 | @import_found01: |
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229 | $pop eax |
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230 | $mov eax,DSDWORD[edx+4] |
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231 | $mov DSDWORD[esi-4],eax |
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232 | $pop edx |
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233 | |||
234 | $jmp import_loop01 |
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235 | @import_done01: |
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4567 | hidnplayr | 236 | IF (need_init) dll_Init (DSDWORD[EDX+4]); |
3067 | leency | 237 | return 0; |
238 | @exit01: |
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239 | return -1; |
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5598 | pavelyakov | 240 | } |
241 | |||
5631 | pavelyakov | 242 | byte load_dll(dword dllname, import_table, byte need_init) |
5626 | leency | 243 | { |
5631 | pavelyakov | 244 | if (load_dll2(dllname, import_table, need_init)) |
245 | { |
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246 | error_init(dllname); |
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247 | return false; |
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248 | } |
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249 | return true; |
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5626 | leency | 250 | } |
5598 | pavelyakov | 251 | |
5626 | leency | 252 | |
5598 | pavelyakov | 253 | #endif |