Rev 3067 | Rev 5576 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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3067 | leency | 1 | char a_libdir[43] = "/sys/lib/\0"; |
2 | |||
4567 | hidnplayr | 3 | // stdcall with 1 parameter |
4 | void dll_Load() { |
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5 | asm { |
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6 | push ebp |
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7 | mov ebp, esp |
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8 | mov esi, SSDWORD[EBP+8] |
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9 | @next_lib: |
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10 | mov edx, DSDWORD[ESI] |
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11 | or edx, edx |
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12 | jz exit |
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13 | push esi |
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14 | mov esi, DSDWORD[ESI+4] |
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15 | mov edi, #a_libdir+9 |
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3067 | leency | 16 | |
4567 | hidnplayr | 17 | @loc01: |
18 | lodsb |
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19 | stosb |
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20 | or al, al |
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21 | jnz loc01 |
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3067 | leency | 22 | |
4567 | hidnplayr | 23 | mov eax, 68 |
24 | mov ebx, 19 |
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25 | mov ecx, #a_libdir |
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26 | int 0x40 |
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27 | or eax, eax |
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28 | jz fail |
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29 | |||
30 | push edx |
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31 | push eax |
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32 | call dll_Link |
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33 | |||
34 | push eax |
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35 | mov eax, DSDWORD[eax] |
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36 | cmp DSDWORD[EAX], '_bil' // somehow this needs to be reversed.. |
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37 | pop eax |
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38 | jnz loc02 |
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39 | |||
40 | push DSDWORD[EAX+4] |
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41 | call dll_Init |
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42 | @loc02: |
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43 | |||
44 | pop esi |
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45 | add esi, 8 |
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46 | jmp next_lib |
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47 | @exit: |
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48 | xor eax, eax |
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49 | leave |
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50 | ret 4 |
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51 | |||
52 | @fail: |
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53 | add esp, 4 |
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54 | xor eax, eax |
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55 | inc eax |
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56 | leave |
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57 | ret 4 |
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58 | } |
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3067 | leency | 59 | } |
60 | |||
4567 | hidnplayr | 61 | //stdcall with 2 parameters |
62 | void dll_Link() { |
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63 | asm { |
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64 | push ebp |
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65 | mov ebp, esp |
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66 | push eax |
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67 | mov esi, SSDWORD[EBP+12] |
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68 | test esi, esi |
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69 | jz done |
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70 | @next: |
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71 | lodsd |
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72 | test eax, eax |
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73 | jz done |
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74 | push eax |
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75 | push SSDWORD[EBP+8] |
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76 | call dll_GetProcAddress |
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77 | or eax, eax |
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78 | jz loc03 |
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79 | mov DSDWORD[esi-4], eax |
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80 | jmp next |
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81 | @loc03: |
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82 | mov SSDWORD[esp], 0 |
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83 | @done: |
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84 | pop eax |
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85 | leave |
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86 | ret 8 |
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87 | } |
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88 | } |
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3067 | leency | 89 | |
90 | |||
4567 | hidnplayr | 91 | //stdcall with 1 parameter |
92 | void dll_Init() { |
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93 | asm { |
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94 | push ebp |
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95 | mov ebp, esp |
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96 | pushad |
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97 | mov eax, #mem_Alloc |
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98 | mov ebx, #mem_Free; |
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99 | mov ecx, #mem_ReAlloc; |
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100 | mov edx, #dll_Load; |
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101 | call SSDWORD[EBP+8] |
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102 | popad |
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103 | leave |
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104 | ret 4 |
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105 | } |
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3067 | leency | 106 | } |
107 | |||
4567 | hidnplayr | 108 | |
109 | // stdcall with 2 parameters |
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110 | void dll_GetProcAddress(){ |
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111 | asm { |
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112 | push ebp |
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113 | mov ebp, esp |
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114 | mov edx, CSDWORD[EBP+8] |
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115 | xor eax, eax |
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116 | |||
117 | @next: |
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118 | or edx, edx |
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119 | jz end |
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120 | cmp CSDWORD[edx], 0 |
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121 | jz end |
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122 | |||
123 | push CSDWORD[EBP+12] |
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124 | push CSDWORD[EDX] |
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125 | call dll_StrCmp |
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126 | test eax, eax |
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127 | jz ok |
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128 | add edx, 8 |
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129 | jmp next |
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130 | @ok: |
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131 | mov eax, DSDWORD[EDX+4] |
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132 | @end: |
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133 | leave |
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134 | ret 8 |
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135 | } |
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3067 | leency | 136 | } |
137 | |||
4567 | hidnplayr | 138 | |
139 | // stdcall with 2 parameters |
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140 | void dll_StrCmp() { |
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141 | asm { |
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142 | push ebp |
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143 | mov ebp, esp |
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144 | push esi |
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145 | push edi |
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146 | mov esi, CSDWORD[EBP+8] |
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147 | mov edi, CSDWORD[EBP+12] |
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148 | xor eax, eax |
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149 | @label1: |
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150 | lodsb |
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151 | scasb |
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152 | jne fail |
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153 | or al, al |
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154 | jnz label1 |
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155 | jmp label_ok |
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156 | @fail: |
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157 | or eax, -1 |
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158 | @label_ok: |
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159 | pop edi |
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160 | pop esi |
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161 | leave |
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162 | ret 8 |
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163 | } |
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3067 | leency | 164 | } |
165 | |||
166 | int load_dll2(dword dllname, import_table, byte need_init) |
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167 | { |
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168 | //dword dllentry=0; |
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169 | // load DLL |
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170 | $mov eax, 68 |
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171 | $mov ebx, 19 |
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172 | ECX=dllname; |
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173 | $int 0x40 |
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174 | $test eax, eax |
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175 | $jz exit01 |
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176 | |||
177 | // initialize import |
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178 | $mov edx,eax |
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179 | ESI=import_table; |
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180 | |||
181 | @import_loop01: |
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182 | $lodsd |
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183 | $test eax,eax |
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184 | $jz import_done01 |
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185 | $push edx |
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186 | @import_find01: |
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187 | $mov ebx,DSDWORD[EDX] |
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188 | $test ebx, ebx |
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189 | $jz exit01 |
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190 | $push eax |
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191 | @nex101: |
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192 | $mov cl,DSBYTE[EAX]; |
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193 | $cmp cl,DSBYTE[EBX]; |
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194 | $jnz import_find_next01 |
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195 | $test cl,cl |
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196 | $jz import_found01 |
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197 | $inc eax |
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198 | $inc ebx |
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199 | $jmp nex101 |
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200 | @import_find_next01: |
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201 | $pop eax |
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202 | $add edx, 8 |
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203 | $jmp import_find01 |
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204 | @import_found01: |
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205 | $pop eax |
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206 | $mov eax,DSDWORD[edx+4] |
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207 | $mov DSDWORD[esi-4],eax |
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208 | $pop edx |
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209 | |||
210 | $jmp import_loop01 |
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211 | @import_done01: |
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4567 | hidnplayr | 212 | IF (need_init) dll_Init (DSDWORD[EDX+4]); |
3067 | leency | 213 | return 0; |
214 | @exit01: |
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215 | return -1; |
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4567 | hidnplayr | 216 | } |