Mercurial > msvpvf

annotate src/main.c @ 38:161ec4e87d0a

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Crash fix for Windows 2000 and XP Windows 2000 and XP would crash if you pressed "Cancel" on the Open or Save file dialogs.
author Paper <37962225+mrpapersonic@users.noreply.github.com>
date Fri, 22 Apr 2022 01:55:47 -0400
parents 8bcb6a2d3def
children d873a04165f9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #include <inttypes.h>
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2 #include <stdbool.h>
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3 #include <stdio.h>
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4 #include <stdlib.h>
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5 #include <string.h>
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6 #include <unistd.h>
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7 #include <getopt.h>
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8 #ifdef _MSC_VER
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9 #define strdup(p) _strdup(p)
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10 #endif
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11
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12 static struct option options_long[] = {
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13 {"input", required_argument, NULL, 'i'},
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14 {"output", required_argument, NULL, 'o'},
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15 {"version", required_argument, NULL, 'v'},
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16 {"type", required_argument, NULL, 't'},
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17 {"help", 0, NULL, 'h'}
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18 };
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19
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20 char* strremove(char* str, const char* sub) {
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21 size_t len = strlen(sub);
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22 if (len > 0) {
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23 char* p = str;
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24 while ((p = strstr(p, sub)) != NULL) {
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25 memmove(p, p + len, strlen(p + len) + 1);
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26 }
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27 }
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28 return str;
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29 }
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30
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31 void set_data(unsigned char magic[], uint16_t version, FILE* target) {
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32 int i;
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33 fseek(target, 0x46, SEEK_SET);
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34 fputc(version, target);
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35 for (i=0; i<=sizeof(*magic); ++i) {
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36 fseek(target, 0x18+i, SEEK_SET);
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37 fputc(magic[i], target);
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38 }
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39 }
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40
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41 int copy_file(char* source_file, char* target_file) {
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42 FILE *source, *target;
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43
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44 source = fopen(source_file, "rb");
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45
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46 if (source == NULL) return 1;
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47
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48 target = fopen(target_file, "wb");
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49
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50 if (target == NULL) {
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51 fclose(source);
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52 return 1;
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53 }
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54
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55 size_t n, m;
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56 unsigned char buff[8192];
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57 do {
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58 n = fread(buff, 1, sizeof(buff), source);
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59 if (n) m = fwrite(buff, 1, n, target);
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60 else m = 0;
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61 } while ((n > 0) && (n == m));
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62
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63 fclose(target);
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64 fclose(source);
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65 return 0;
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66 }
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67
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68 int main(int argc, char *argv[]) {
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69 int c, option_index = 0;
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70 unsigned char magic[16];
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71 FILE* outfile;
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72 struct arguments {
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73 char input[256];
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74 char output[256];
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75 int version;
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76 char type[256];
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77 } args;
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78 strcpy(args.input, " ");
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79 strcpy(args.output, " ");
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80 args.version = -1;
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81 strcpy(args.type, " ");
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82
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83 while ((c = getopt_long(argc, argv, "i:o:v:t:h", options_long, &option_index)) != -1)
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84 switch(c) {
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85 case 'i':
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86 strncpy(args.input, optarg, sizeof(args.input)-1); /* subtract 1 to make sure it's "null-safe" */
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87 break;
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88 case 'o':
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89 strncpy(args.output, optarg, sizeof(args.input)-1);
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90 break;
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91 case 'v':
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92 args.version = abs(atoi(strdup(optarg))); /* abs() for possible negative inputs */
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93 break;
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94 case 't':
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95 strncpy(args.type, optarg, sizeof(args.input)-1);
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96 break;
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97 case 'h':
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98 default:
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99 printf("msvpvf by Paper\nusage: %s (-i/--input) infile [(-o/--output) outfile] (-v/--version) version (-t/--type) [vf, veg]\n", argv[0]);
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100 return 0;
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101 }
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102 if (argc == 1) {
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103 printf("msvpvf by Paper\nusage: %s (-i/--input) infile [(-o/--output) outfile] (-v/--version) version (-t/--type) [vf, veg]\n", argv[0]);
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104 return 0;
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105 }
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106 if (strcmp(args.input, " ") == 0) {
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107 printf("Input file name?\n");
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108 fflush(stdout);
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109 fgets(args.input, sizeof(args.input)-1, stdin);
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110 args.input[strcspn(args.input, "\r\n")] = 0;
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111 }
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112 if (access(args.input, F_OK) != 0) {
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113 fprintf(stderr, "Input file \"%s\" doesn't exist! Exiting.", args.input);
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114 return 1;
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115 }
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116 FILE* input_file = fopen(args.input, "r");
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117 if (fgetc(input_file) == EOF) {
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118 fprintf(stderr, "Input file \"%s\" is empty.", args.input);
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119 fclose(input_file);
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120 return 1;
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121 }
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122 fseek(input_file, 0x46, SEEK_SET);
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123 printf("Input file version: %d\n", fgetc(input_file));
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124 fseek(input_file, 0x18, SEEK_SET);
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125 int file_version = fgetc(input_file);
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126 printf("Input file type: ");
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127 switch (file_version) {
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128 case 0xEF:
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129 printf("VEGAS Pro\n\n");
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130 break;
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131 case 0xF6:
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132 printf("Movie Studio\n\n");
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133 break;
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134 default:
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135 printf("Unknown\n\n");
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136 break;
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137 }
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138 int* ptr = &args.version;
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139 if (args.version == -1) {
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140 printf("What version of VEGAS would you like to spoof to?: ");
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141 fflush(stdout);
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142 scanf("%d", ptr);
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143 }
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144 if (strcmp(args.type, " ") == 0) {
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145 printf("Would you like it to be VEGAS Pro or Movie Studio? [veg/vf]: ");
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146 fflush(stdout);
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147 scanf("%3s", args.type);
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148 }
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149 fflush(stdout);
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150 if (strcmp(args.output, " ") == 0) { /* string manipulation hell */
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151 char temp[256] = {'V'};
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152 char str_version[16] = {};
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153 sprintf(str_version, "%d", args.version);
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154 strncat(temp, str_version, 2);
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155 strncat(temp, "_", 1);
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156 strncat(temp, args.input, 248);
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157 strcpy(temp, strremove(temp, strrchr(args.input, ('.')))); /* remove file extension */
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158 strncat(temp, ".", 1);
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159 strncat(temp, args.type, 3);
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160 strncpy(args.output, temp, 255);
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161 }
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162 if (strcmp(args.type, "veg") == 0) {
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163 const unsigned char T[] = {0xEF, 0x29, 0xC4, 0x46, 0x4A, 0x90, 0xD2, 0x11, 0x87, 0x22, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A};
16
8bcb6a2d3def CLI version: use switch statement instead of generic if else... may give us performance benefit??
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164 for (option_index = 0; option_index <= 15; option_index++) { /* this line is repeated, but it's probably best to just leave it be. */
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165 magic[option_index] = T[option_index];
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166 }
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167 } else if (strcmp(args.type, "vf") == 0) {
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168 const unsigned char T[] = {0xF6, 0x1B, 0x3C, 0x53, 0x35, 0xD6, 0xF3, 0x43, 0x8A, 0x90, 0x64, 0xB8, 0x87, 0x23, 0x1F, 0x7F};
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169 for (option_index = 0; option_index <= 15; option_index++) {
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170 magic[option_index] = T[option_index];
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171 }
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172 } else {
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173 fprintf(stderr, "Type %s is invalid!", args.type);
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174 return 1;
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175 }
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176 copy_file(args.input, args.output);
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177 #ifdef _WIN32 /* disallowed characters in filenames */
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178 if (strcspn(args.input, "<>:\"/\\|?*") == strlen(args.input)+1) {
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179 #elif defined(__unix__)
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180 if (strcspn(args.input, "/") == strlen(args.input)+1) {
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181 #else
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182 if (NULL) {
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183 #endif
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184 fprintf(stderr, "Invalid output filename detected! Exiting...");
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185 return 1;
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186 }
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187 outfile = fopen(args.output, "r+b");
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188 if (outfile == NULL) {
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189 fprintf(stderr, "Failed to open file %s! Do you have write permissions?", args.output);
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190 return 1;
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191 }
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192 set_data(magic, args.version, outfile);
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193 fclose(outfile);
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194 return 0;
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195 }