Mercurial > msvpvf

annotate src/main.c @ 85:1acd477da42f

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posix: improvements
author Paper <paper@paper.us.eu.org>
date Mon, 17 Jun 2024 21:18:37 -0400
parents c06dcab17923
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #include <stdio.h>
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2 #include <stdint.h>
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3 #include <stdlib.h>
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4 #include <stdarg.h>
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5 #include <string.h>
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6
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7 #include <getopt.h>
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8 #include <libgen.h>
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9
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10 #include "common.h"
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11
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12 /* non-portable functions */
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13 static char* msvpvf_internal_strdup(const char* str) {
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14 size_t len = strlen(str) + 1;
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15
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16 char* copy = malloc(len);
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17 if (!copy)
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18 return NULL;
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19
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20 memcpy(copy, str, len);
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21 return copy;
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22 }
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23
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24 static char *msvpvf_internal_asnprintf(const char *format, ...) {
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25 va_list args;
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26 int needed_size;
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27 char *output = NULL;
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28
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29 va_start(args, format);
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30
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31 needed_size = vsnprintf(NULL, 0, format, args);
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32 if (needed_size < 0)
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33 return NULL;
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34
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35 va_end(args);
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36
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37 output = malloc((needed_size + 1) * sizeof(char));
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38 if (!output)
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39 return NULL;
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40
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41 va_start(args, format);
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42
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43 needed_size = vsnprintf(output, needed_size + 1, format, args);
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44 if (needed_size < 0) {
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45 free(output);
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46 return NULL;
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47 }
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48
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49 va_end(args);
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50
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51 return output;
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52 }
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53
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54 /* source needs read permissions, target needs write permissions, both must be in binary mode */
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55 static int copy_file(FILE* source, FILE* target) {
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56 char ch[4096];
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57
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58 while (!feof(source)) {
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59 size_t b = fread(ch, 1, sizeof(ch), source);
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60 if (b)
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61 fwrite(ch, 1, b, target);
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62 }
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63
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64 return 0;
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65 }
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66
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67 static const char* type_names[] = {
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68 [TYPES_VF] = "Movie Studio",
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69 [TYPES_VEG] = "Vegas Pro",
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70 [TYPES_UNKNOWN] = "Unknown",
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71 };
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72
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73 static const char* type_extensions[] = {
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74 [TYPES_VF] = "vf",
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75 [TYPES_VEG] = "veg",
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76 };
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77
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78 #ifndef ARRAYSIZE
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79 #define ARRAYSIZE(x) (sizeof(x) / sizeof((x)[0]))
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80 #endif
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81
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82 static const char* help_text =
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83 "msvpvf help text\n"
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84 "author: Paper <paper@paper.us.eu.org>\n"
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85 "usage: %s <input>... (arguments)\n"
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86 "\n"
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87 "arguments:\n"
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88 " -t, --type one of [vf,veg] (required)\n"
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89 " -v, --version version to convert to (required)\n"
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90 " -h, --help show this screen (optional)\n";
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91
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92 static struct option options_long[] = {
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93 {"version", required_argument, NULL, 'v'},
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94 {"type", required_argument, NULL, 't'},
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95 {"help", 0, NULL, 'h'},
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96 };
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97
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98 int main(int argc, char *argv[]) {
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99 uint8_t version = 0;
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100 enum types type = TYPES_VEG; /* ...? */
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101
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102 int c;
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103 int option_index = 0;
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104 while ((c = getopt_long(argc, argv, "v:t:h", options_long, &option_index)) != -1) {
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105 /* option argument */
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106 switch (c) {
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107 case 'v':
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108 version = atoi(optarg);
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109 break;
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110 case 't':
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111 if (!strcmp(optarg, "vf")) {
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112 type = TYPES_VF;
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113 } else if (!strcmp(optarg, "veg")) {
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114 type = TYPES_VEG;
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115 } else {
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116 fprintf(stderr, "[ERROR]: Received an invalid type parameter!\n");
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117 printf(help_text, argv[0]);
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118 }
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119
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120 break;
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121 case 'h':
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122 default:
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123 printf(help_text, argv[0]);
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124 break;
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125 }
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126 }
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127
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128 if (argc <= optind) {
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129 fprintf(stderr, "[ERROR]: Missing input file(s)!\n");
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130 printf(help_text, argv[0]);
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131 return 1;
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132 }
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133
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134 if (!version || !type) {
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135 printf(help_text, (argc > 0) ? argv[0] : "msvpvf");
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136 return 1;
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137 }
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138
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139 while (optind < argc) {
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140 const char* input = argv[optind++];
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141 FILE *input_file, *output_file = NULL;
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142 uint8_t file_version = 0;
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143 enum types file_type = TYPES_UNKNOWN;
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144
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145 printf("Input file name: %s\n", input);
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146
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147 /* print information about the input file */
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148 input_file = fopen(input, "rb");
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149 if (!input_file) {
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150 fprintf(stderr, "[ERROR]: Error opening input file %s!\n\n", input);
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151 continue;
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152 }
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153
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154 if (fgetc(input_file) == EOF) {
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155 fprintf(stderr, "[ERROR]: Input file \"%s\" is empty.\n", input);
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156 fclose(input_file);
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157 continue;
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158 }
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159
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Paper <paper@paper.us.eu.org>
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160 if (get_file_information(input_file, &file_version, &file_type)) {
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Paper <paper@paper.us.eu.org>
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161 fprintf(stderr, "[ERROR]: Failed to get file information for input file \"%s\"!\n", input);
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Paper <paper@paper.us.eu.org>
parents: 81
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162 fclose(input_file);
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Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
163 continue;
1acd477da42f posix: improvements
Paper <paper@paper.us.eu.org>
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164 }
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Paper <paper@paper.us.eu.org>
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165
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Paper <paper@paper.us.eu.org>
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166 printf("Input file version: %u\n", file_version);
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Paper <paper@paper.us.eu.org>
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167 printf("Input file type: %s\n\n", type_names[file_type]);
79
8f90d5addda9 *: refactor... basically everything!
Paper <paper@paper.us.eu.org>
parents: 58
diff changeset
168
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Paper <paper@paper.us.eu.org>
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169 {
85
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Paper <paper@paper.us.eu.org>
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170 /* open the output file... */
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Paper <paper@paper.us.eu.org>
parents: 81
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171 char* basec = msvpvf_internal_strdup(input);
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Paper <paper@paper.us.eu.org>
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172 char* bname = basename(basec);
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Paper <paper@paper.us.eu.org>
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173 int ext = strrchr(bname, '.') - bname;
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174
85
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175 char *output = msvpvf_internal_asnprintf("V%u_%.*s.%s", version, ext, bname, type_extensions[type]);
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Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
176 if (!output) {
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Paper <paper@paper.us.eu.org>
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177 fprintf(stderr, "[ERROR]: msvpvf_internal_asnprintf failed!\n");
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Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
178 free(basec);
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Paper <paper@paper.us.eu.org>
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diff changeset
179 free(output);
79
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180 fclose(input_file);
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Paper <paper@paper.us.eu.org>
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181 continue;
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Paper <paper@paper.us.eu.org>
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182 }
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183
85
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Paper <paper@paper.us.eu.org>
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diff changeset
184 output_file = fopen(output, "w+b");
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Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
185 if (!output_file) {
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Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
186 fprintf(stderr, "[ERROR]: Failed to open output file %s! Do you have write permissions?\n", output);
79
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Paper <paper@paper.us.eu.org>
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diff changeset
187 free(basec);
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Paper <paper@paper.us.eu.org>
parents: 58
diff changeset
188 free(output);
85
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Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
189 fclose(input_file);
1acd477da42f posix: improvements
Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
190 continue;
79
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Paper <paper@paper.us.eu.org>
parents: 58
diff changeset
191 }
8f90d5addda9 *: refactor... basically everything!
Paper <paper@paper.us.eu.org>
parents: 58
diff changeset
192
85
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Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
193 free(basec);
1acd477da42f posix: improvements
Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
194 free(output);
1acd477da42f posix: improvements
Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
195 }
79
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Paper <paper@paper.us.eu.org>
parents: 58
diff changeset
196
85
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Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
197 copy_file(input_file, output_file);
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Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
198
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Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
199 fflush(stdout);
1acd477da42f posix: improvements
Paper <paper@paper.us.eu.org>
parents: 81
diff changeset
200 fclose(input_file);
79
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Paper <paper@paper.us.eu.org>
parents: 58
diff changeset
201
8f90d5addda9 *: refactor... basically everything!
Paper <paper@paper.us.eu.org>
parents: 58
diff changeset
202 set_file_information(output_file, version, type);
8f90d5addda9 *: refactor... basically everything!
Paper <paper@paper.us.eu.org>
parents: 58
diff changeset
203 fclose(output_file);
6
d1e5b8390cd3 Add Windows GUI version and a multitude of other changes
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
204 }
79
8f90d5addda9 *: refactor... basically everything!
Paper <paper@paper.us.eu.org>
parents: 58
diff changeset
205
6
d1e5b8390cd3 Add Windows GUI version and a multitude of other changes
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
206 return 0;
d1e5b8390cd3 Add Windows GUI version and a multitude of other changes
Paper <mrpapersonic@gmail.com>
parents:
diff changeset
207 }