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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 |
7219 | leency | 6 | #include "../lib/fs.h" |
5626 | leency | 7 | #endif |
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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7246 | leency | 21 | dword TEXT_ERROR[1024]; |
5690 | leency | 22 | sprintf(TEXT_ERROR, "%s `%s`' -E",_TEXT_ERROR_ADD,text); |
5576 | pavelyakov | 23 | notify(TEXT_ERROR); |
24 | } |
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25 | |||
4567 | hidnplayr | 26 | // stdcall with 1 parameter |
5883 | pavelyakov | 27 | :void dll_Load() { |
4567 | hidnplayr | 28 | asm { |
29 | push ebp |
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30 | mov ebp, esp |
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31 | mov esi, SSDWORD[EBP+8] |
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5576 | pavelyakov | 32 | @next_lib: |
4567 | hidnplayr | 33 | mov edx, DSDWORD[ESI] |
34 | or edx, edx |
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35 | jz exit |
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36 | push esi |
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37 | mov esi, DSDWORD[ESI+4] |
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38 | mov edi, #a_libdir+9 |
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3067 | leency | 39 | |
4567 | hidnplayr | 40 | @loc01: |
41 | lodsb |
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42 | stosb |
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43 | or al, al |
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44 | jnz loc01 |
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3067 | leency | 45 | |
4567 | hidnplayr | 46 | mov eax, 68 |
47 | mov ebx, 19 |
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48 | mov ecx, #a_libdir |
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49 | int 0x40 |
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50 | or eax, eax |
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51 | jz fail |
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52 | |||
53 | push edx |
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54 | push eax |
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55 | call dll_Link |
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56 | |||
57 | push eax |
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58 | mov eax, DSDWORD[eax] |
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59 | cmp DSDWORD[EAX], '_bil' // somehow this needs to be reversed.. |
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60 | pop eax |
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61 | jnz loc02 |
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62 | |||
63 | push DSDWORD[EAX+4] |
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64 | call dll_Init |
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65 | @loc02: |
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66 | |||
67 | pop esi |
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68 | add esi, 8 |
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69 | jmp next_lib |
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70 | @exit: |
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5598 | pavelyakov | 71 | xor eax, eax |
4567 | hidnplayr | 72 | leave |
73 | ret 4 |
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74 | |||
75 | @fail: |
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76 | add esp, 4 |
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77 | xor eax, eax |
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78 | inc eax |
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79 | leave |
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80 | ret 4 |
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81 | } |
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3067 | leency | 82 | } |
83 | |||
4567 | hidnplayr | 84 | //stdcall with 2 parameters |
5883 | pavelyakov | 85 | :void dll_Link() { |
4567 | hidnplayr | 86 | asm { |
87 | push ebp |
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88 | mov ebp, esp |
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89 | push eax |
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90 | mov esi, SSDWORD[EBP+12] |
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91 | test esi, esi |
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92 | jz done |
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93 | @next: |
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94 | lodsd |
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95 | test eax, eax |
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96 | jz done |
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97 | push eax |
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98 | push SSDWORD[EBP+8] |
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99 | call dll_GetProcAddress |
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100 | or eax, eax |
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101 | jz loc03 |
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102 | mov DSDWORD[esi-4], eax |
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103 | jmp next |
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104 | @loc03: |
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105 | mov SSDWORD[esp], 0 |
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106 | @done: |
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107 | pop eax |
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108 | leave |
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109 | ret 8 |
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110 | } |
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111 | } |
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3067 | leency | 112 | |
113 | |||
4567 | hidnplayr | 114 | //stdcall with 1 parameter |
5883 | pavelyakov | 115 | :void dll_Init() { |
4567 | hidnplayr | 116 | asm { |
117 | push ebp |
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118 | mov ebp, esp |
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119 | pushad |
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5631 | pavelyakov | 120 | mov eax, #malloc |
121 | mov ebx, #free; |
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122 | mov ecx, #realloc; |
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4567 | hidnplayr | 123 | mov edx, #dll_Load; |
124 | call SSDWORD[EBP+8] |
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125 | popad |
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126 | leave |
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127 | ret 4 |
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128 | } |
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3067 | leency | 129 | } |
130 | |||
4567 | hidnplayr | 131 | |
132 | // stdcall with 2 parameters |
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5883 | pavelyakov | 133 | :void dll_GetProcAddress(){ |
4567 | hidnplayr | 134 | asm { |
135 | push ebp |
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136 | mov ebp, esp |
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137 | mov edx, CSDWORD[EBP+8] |
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138 | xor eax, eax |
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139 | |||
140 | @next: |
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141 | or edx, edx |
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142 | jz end |
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143 | cmp CSDWORD[edx], 0 |
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144 | jz end |
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145 | |||
146 | push CSDWORD[EBP+12] |
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147 | push CSDWORD[EDX] |
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148 | call dll_StrCmp |
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149 | test eax, eax |
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150 | jz ok |
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151 | add edx, 8 |
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152 | jmp next |
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153 | @ok: |
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154 | mov eax, DSDWORD[EDX+4] |
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155 | @end: |
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156 | leave |
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157 | ret 8 |
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158 | } |
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3067 | leency | 159 | } |
160 | |||
4567 | hidnplayr | 161 | |
162 | // stdcall with 2 parameters |
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5883 | pavelyakov | 163 | :void dll_StrCmp() { |
4567 | hidnplayr | 164 | asm { |
165 | push ebp |
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166 | mov ebp, esp |
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167 | push esi |
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168 | push edi |
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169 | mov esi, CSDWORD[EBP+8] |
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170 | mov edi, CSDWORD[EBP+12] |
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171 | xor eax, eax |
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172 | @label1: |
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173 | lodsb |
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174 | scasb |
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175 | jne fail |
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176 | or al, al |
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177 | jnz label1 |
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178 | jmp label_ok |
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179 | @fail: |
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180 | or eax, -1 |
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181 | @label_ok: |
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182 | pop edi |
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183 | pop esi |
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184 | leave |
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185 | ret 8 |
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186 | } |
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3067 | leency | 187 | } |
188 | |||
5883 | pavelyakov | 189 | :int load_dll2(dword dllname, import_table, byte need_init) |
3067 | leency | 190 | { |
191 | //dword dllentry=0; |
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192 | // load DLL |
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193 | $mov eax, 68 |
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194 | $mov ebx, 19 |
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195 | ECX=dllname; |
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196 | $int 0x40 |
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197 | $test eax, eax |
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198 | $jz exit01 |
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199 | |||
200 | // initialize import |
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201 | $mov edx,eax |
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202 | ESI=import_table; |
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203 | |||
204 | @import_loop01: |
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205 | $lodsd |
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206 | $test eax,eax |
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207 | $jz import_done01 |
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208 | $push edx |
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209 | @import_find01: |
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210 | $mov ebx,DSDWORD[EDX] |
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211 | $test ebx, ebx |
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212 | $jz exit01 |
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213 | $push eax |
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214 | @nex101: |
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215 | $mov cl,DSBYTE[EAX]; |
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216 | $cmp cl,DSBYTE[EBX]; |
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217 | $jnz import_find_next01 |
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218 | $test cl,cl |
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219 | $jz import_found01 |
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220 | $inc eax |
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221 | $inc ebx |
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222 | $jmp nex101 |
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223 | @import_find_next01: |
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224 | $pop eax |
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225 | $add edx, 8 |
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226 | $jmp import_find01 |
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227 | @import_found01: |
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228 | $pop eax |
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229 | $mov eax,DSDWORD[edx+4] |
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230 | $mov DSDWORD[esi-4],eax |
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231 | $pop edx |
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232 | |||
233 | $jmp import_loop01 |
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234 | @import_done01: |
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4567 | hidnplayr | 235 | IF (need_init) dll_Init (DSDWORD[EDX+4]); |
3067 | leency | 236 | return 0; |
237 | @exit01: |
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238 | return -1; |
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5598 | pavelyakov | 239 | } |
240 | |||
5883 | pavelyakov | 241 | :byte load_dll(dword dllname, import_table, byte need_init) |
5626 | leency | 242 | { |
5631 | pavelyakov | 243 | if (load_dll2(dllname, import_table, need_init)) |
244 | { |
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245 | error_init(dllname); |
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246 | return false; |
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247 | } |
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248 | return true; |
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5626 | leency | 249 | } |
5598 | pavelyakov | 250 | |
5626 | leency | 251 | |
5598 | pavelyakov | 252 | #endif |