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annotate msvpvf.c @ 3:87c7d43b03ff

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Add support for runtime inputs
author Paper <mrpapersonic@gmail.com>
date Thu, 20 Jan 2022 23:00:18 -0500
parents 528b95e1e24f
children 78a0ecd756da
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1 /* Movie Studio / Vegas Pro version spoofer
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2 * by Paper
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3 */
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4
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5 #include <stdio.h>
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6 #include <unistd.h>
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7 #include <getopt.h>
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8 #include <inttypes.h>
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9 #include <string.h>
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10 #include <stdlib.h>
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11 #if __STDC_VERSION__ >= 199901L
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12 #include <stdbool.h>
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13 #else
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14 typedef enum { false, true } bool; /* less than C99 */
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15 #endif
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16 #ifdef _MSC_VER
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17 #define strdup(p) _strdup(p)
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18 #endif
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19
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20 static struct option options_long[] = {
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21 {"input", required_argument, NULL, 'i'},
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22 {"output", required_argument, NULL, 'o'},
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23 {"version", required_argument, NULL, 'v'},
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24 {"type", required_argument, NULL, 't'},
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25 {"help", 0, NULL, 'h'}
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26 };
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27
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28 char* strremove(char* str, const char* sub) {
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29 size_t len = strlen(sub);
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30 if (len > 0) {
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31 char *p = str;
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32 while ((p = strstr(p, sub)) != NULL) {
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33 memmove(p, p + len, strlen(p + len) + 1);
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34 }
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35 }
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36 return str;
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37 }
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38
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39 void set_data(unsigned char magic[], uint16_t version, FILE* target) {
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40 int i;
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41 fseek(target, 0x46, SEEK_SET);
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42 fputc(version, target);
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43 for (i=0; i<=sizeof(*magic); ++i) {
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44 fseek(target, 0x18+i, SEEK_SET);
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45 fputc(magic[i], target);
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46 }
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47 }
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48
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49 int copy_file(char* source_file, char* target_file) {
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50 FILE *source, *target;
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51
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52 source = fopen(source_file, "rb");
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53 if (source == NULL) {
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54 return 1;
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55 }
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56 target = fopen(target_file, "wb");
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57 if (target == NULL) {
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58 return 1;
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59 }
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60
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61 size_t n, m;
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62 unsigned char buff[8192];
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63 do {
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64 n = fread(buff, 1, sizeof(buff), source);
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65 if (n) m = fwrite(buff, 1, n, target);
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66 else m = 0;
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67 } while ((n > 0) && (n == m));
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68
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69 fclose(target);
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70 fclose(source);
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71 return 0;
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72 }
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73
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74 int main(int argc, char *argv[]) {
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75 int c, option_index = 0;
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76 unsigned char magic[16];
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77 FILE* outfile;
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78 struct arguments {
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79 char input[128];
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80 char output[128];
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81 int version;
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82 char type[128];
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83 } args;
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84 strcpy(args.input, " ");
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85 strcpy(args.output, " ");
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86 args.version = -1;
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87 strcpy(args.type, " ");
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88
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89 while ((c = getopt_long(argc, argv, "i:o:v:t:h", options_long, &option_index)) != -1)
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90 switch(c) {
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91 case 'i':
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92 strncpy(args.input, optarg, sizeof(args.input)-1); /* subtract 1 to make sure it's "null-safe" */
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93 break;
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94 case 'o':
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95 strncpy(args.output, optarg, sizeof(args.input)-1);
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96 break;
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97 case 'v':
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98 args.version = abs(atoi(strdup(optarg))); /* abs() for possible negative inputs */
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99 break;
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100 case 't':
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101 strncpy(args.type, optarg, sizeof(args.input)-1);
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102 break;
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103 case 'h':
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104 default:
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105 printf("msvpvf by Paper\nusage: %s (-i/--input) infile [(-o/--output) outfile] (-v/--version) version (-t/--type) [vf, veg]", argv[0]);
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106 return 0;
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107 }
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108 int* ptr = &args.version;
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109 if (argc <= 5) {
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110 if (strcmp(args.input, " ") == 0) {
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111 printf("Input file name?\n");
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112 fflush(stdout);
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113 fgets(args.input, sizeof(args.input)-1, stdin);
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114 args.input[strcspn(args.input, "\r\n")] = 0;
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115 }
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116 if (strcmp(args.output, " ") == 0) {
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117 char* temp;
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118 temp = strncat(strncat("PRO_V", (char*)(intptr_t)args.version, 7), args.input, 127);
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119 char* file_extension = strrchr(args.input, ('.')); /* this won't work if your path is /path.to/file but why would you do that in the first place */
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120 strncpy(args.output, strncat(strncat(strremove(temp, file_extension), ".", 127), args.type, 127), 127);
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121 }
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122 if (args.version == -1) {
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123 printf("What version would you like to convert to?\n");
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124 fflush(stdout);
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125 scanf("%d", ptr);
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126 }
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127 if (strcmp(args.type, " ") == 0) {
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128 printf("Which type of project file would you like to use?[veg/vf]:\n");
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129 fflush(stdout);
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130 fgets(args.type, sizeof(args.input)-1, stdin);
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131 args.type[strcspn(args.type, "\r\n")] = 0;
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132 }
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133 if (argc == 1) {
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134 printf("msvpvf by Paper\nusage: %s -i infile [-o outfile] -v version -t [vf, veg]", argv[0]);
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135 return 0;
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136 }
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137 }
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138 if (access(args.input, F_OK) != 0) { /* input file doesn't exist */
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139 fprintf(stderr, "Input file %s doesn't exist! Exiting.", args.input);
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140 return 1;
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141 }
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142 if (fgetc(fopen(args.input, "r")) == EOF) { /* input file is empty */
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143 fprintf(stderr, "Input file %s is empty.", args.input);
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144 return 1;
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145 }
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146 if (strcmp(args.type, "veg") == 0) {
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147 unsigned char T[] = {0xEF, 0x29, 0xC4, 0x46, 0x4A, 0x90, 0xD2, 0x11, 0x87, 0x22, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A};
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148 for (option_index = 0; option_index <= 15; option_index++) {
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149 magic[option_index] = T[option_index];
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150 }
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151 } else if (strcmp(args.type, "vf") == 0) {
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152 unsigned char T[] = {0xF6, 0x1B, 0x3C, 0x53, 0x35, 0xD6, 0xF3, 0x43, 0x8A, 0x90, 0x64, 0xB8, 0x87, 0x23, 0x1F, 0x7F};
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153 for (option_index = 0; option_index <= 15; option_index++) {
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154 magic[option_index] = T[option_index];
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155 }
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156 } else {
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157 fprintf(stderr, "Type %s is invalid!", args.type);
3
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158 return 1;
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159 }
3
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160 copy_file(args.input, args.output);
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161 outfile = fopen(args.output, "r+b");
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162 set_data(magic, args.version, outfile);
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163 fclose(outfile);
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164 return 0;
1
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165 }