Root/
| Source at commit 1146 created 12 years 10 months ago. By azimutz, Sync with trunk (r1145). Add nVidia dev id's, 0DF4 for "GeForce GT 450M" (issue 99) and 1251 for "GeForce GTX 560M" (thanks to oSxFr33k for testing). | |
|---|---|
| 1 | /*␊ |
| 2 | * hex_editor.c␊ |
| 3 | * ␊ |
| 4 | *␊ |
| 5 | * Created by Meklort on 10/19/10.␊ |
| 6 | * Copyright 2010 Evan Lojewski. All rights reserved.␊ |
| 7 | *␊ |
| 8 | */␊ |
| 9 | ␊ |
| 10 | #include "hex_editor.h"␊ |
| 11 | ␊ |
| 12 | int replace_patern(char* pattern, char* replacement, char* buffer, long buffer_size)␊ |
| 13 | {␊ |
| 14 | ␉long index = 0;␊ |
| 15 | ␉int num_replaced = 0;␊ |
| 16 | ␉// NOTE: patehrn and replacement are null terminated. This may change later␊ |
| 17 | ␉// If I need to replce null bytes␊ |
| 18 | ␉␊ |
| 19 | ␉if(!pattern || ␊ |
| 20 | ␉ !replacement ||␊ |
| 21 | ␉ !buffer ||␊ |
| 22 | ␉ strlen(pattern) != strlen(replacement)␊ |
| 23 | ␉ ) return 0;␊ |
| 24 | ␉␊ |
| 25 | ␉␊ |
| 26 | ␉while(index < buffer_size - strlen(pattern))␊ |
| 27 | ␉{␊ |
| 28 | ␉␉bool located = true;␊ |
| 29 | ␉␉int i = 0;␊ |
| 30 | ␉␉while(located && i < strlen(pattern))␊ |
| 31 | ␉␉{␊ |
| 32 | ␉␉␉if(pattern[i] != buffer[i + index]) located = false;␊ |
| 33 | ␉␉␉i++;␊ |
| 34 | ␉␉}␊ |
| 35 | ␉␉␊ |
| 36 | ␉␉if(located)␊ |
| 37 | ␉␉{␊ |
| 38 | ␉␉␉printf("Located patern\n");␊ |
| 39 | ␉␉␉index += strlen(pattern) - 1;␊ |
| 40 | ␉␉␉num_replaced++;␊ |
| 41 | ␉␉}␊ |
| 42 | ␉␉␊ |
| 43 | ␉␉index++;␊ |
| 44 | ␉}␊ |
| 45 | ␉␊ |
| 46 | ␉return num_replaced;␊ |
| 47 | }␊ |
| 48 | ␊ |
| 49 | ␊ |
| 50 | int replace_word(uint32_t pattern, uint32_t repalcement, char* buffer, long buffer_size)␊ |
| 51 | {␊ |
| 52 | ␉int num_replaced = 0;␊ |
| 53 | ␉char* tmp = buffer;␊ |
| 54 | ␉␊ |
| 55 | ␉if(!buffer || !buffer_size) return 0;␊ |
| 56 | ␉␊ |
| 57 | ␉␊ |
| 58 | ␉while(tmp < buffer + buffer_size - sizeof(uint32_t))␊ |
| 59 | ␉{␊ |
| 60 | ␊ |
| 61 | ␉␉uint32_t* current= (uint32_t*)tmp;␊ |
| 62 | ␉␉␊ |
| 63 | ␉␉if(*current == pattern)␊ |
| 64 | ␉␉{␊ |
| 65 | ␉␉␉*current = repalcement;␊ |
| 66 | ␉␉␉num_replaced++;␊ |
| 67 | ␉␉␉tmp += 4;␊ |
| 68 | ␉␉}␊ |
| 69 | ␉␉else ␊ |
| 70 | ␉␉{␊ |
| 71 | ␉␉␉tmp++;␊ |
| 72 | ␉␉}␊ |
| 73 | ␉}␊ |
| 74 | ␉␊ |
| 75 | ␉return num_replaced;␊ |
| 76 | }␊ |
| 77 | ␊ |
| 78 | void replace_string(char* find, const char* replace, char* string, int length)␊ |
| 79 | {␊ |
| 80 | ␉if(!find ||␊ |
| 81 | ␉ !replace ||␊ |
| 82 | ␉ !string ||␊ |
| 83 | ␉ !length ||␊ |
| 84 | ␉ strlen(find) != strlen(replace)) return;␊ |
| 85 | ␉␊ |
| 86 | ␉char* str = string;␊ |
| 87 | ␉while(length && strncmp(str, find, strlen(find)-1))␊ |
| 88 | ␉{␊ |
| 89 | ␉␉length--;␊ |
| 90 | ␉␉str++;␊ |
| 91 | ␉}␊ |
| 92 | ␉strncpy(str, replace, strlen(replace));␉// don't copy the null char␊ |
| 93 | }␊ |
| 94 | ␊ |
| 95 | void replace_bytes(char* find, int find_size, char* replace, int replace_size, char* exec, int length)␊ |
| 96 | {␊ |
| 97 | ␉if(!find ||␊ |
| 98 | ␉ !replace ||␊ |
| 99 | ␉ !exec ||␊ |
| 100 | ␉ !length ||␊ |
| 101 | ␉ find_size > replace_size)␉// Allow find_size to be less than replace_size. Will overwrite bytes including and *after* located pattern␊ |
| 102 | ␉␉return;␊ |
| 103 | ␉␊ |
| 104 | ␉char* search = exec;␉␊ |
| 105 | ␉␊ |
| 106 | ␉␊ |
| 107 | ␉while(memcmp(search, find, find_size) != 0␊ |
| 108 | ␉␉ && ((search - exec) < length))␊ |
| 109 | ␉{␊ |
| 110 | ␉␉search++;␊ |
| 111 | ␉}␊ |
| 112 | ␊ |
| 113 | ␉if((search - exec) < length)␊ |
| 114 | ␉{␊ |
| 115 | ␉␉// Mem found, replace it␊ |
| 116 | ␉␉memcpy(search, replace, replace_size);␊ |
| 117 | ␉}␊ |
| 118 | }␊ |
| 119 | ␊ |
| 120 | |
