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1 | pmbaty | 1 | /* |
2 | * This file is part of the DXX-Rebirth project <https://www.dxx-rebirth.com/>. |
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3 | * It is copyright by its individual contributors, as recorded in the |
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4 | * project's Git history. See COPYING.txt at the top level for license |
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5 | * terms and a link to the Git history. |
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6 | */ |
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7 | /* |
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8 | * Written 1999 Jan 29 by Josh Cogliati |
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9 | * Modified by Bradley Bell, 2002, 2003 |
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10 | * This program is licensed under the terms of the GPL, version 2 or later |
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11 | */ |
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12 | |||
13 | #ifdef HAVE_CONFIG_H |
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14 | #include <conf.h> |
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15 | #endif |
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16 | |||
17 | #include <stdio.h> |
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18 | #include <stdlib.h> |
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19 | #include <string.h> |
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20 | #include <sys/types.h> |
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21 | #include <sys/stat.h> |
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22 | #include <fcntl.h> |
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23 | |||
24 | #define SWAPINT(x) (((x)<<24) | (((unsigned)(x)) >> 24) | (((x) &0x0000ff00) << 8) | (((x) & 0x00ff0000) >> 8)) |
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25 | |||
26 | int |
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27 | main(int argc, char *argv[]) |
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28 | { |
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29 | FILE *hogfile, *writefile; |
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30 | int len; |
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31 | char filename[13]; |
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32 | char *buf; |
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33 | struct stat statbuf; |
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34 | int v = 0; |
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35 | |||
36 | if (argc > 1 && !strcmp(argv[1], "v")) { |
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37 | v = 1; |
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38 | argc--; |
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39 | argv++; |
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40 | } |
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41 | |||
42 | if (argc < 2) { |
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43 | printf("Usage: hogextract [v] hogfile [filename]\n" |
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44 | "extracts all the files in hogfile into the current directory\n" |
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45 | "Options:\n" |
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46 | " v View files, don't extract\n"); |
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47 | exit(0); |
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48 | } |
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49 | hogfile = fopen(argv[1], "rb"); |
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50 | stat(argv[1], &statbuf); |
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51 | printf("%i\n", (int)statbuf.st_size); |
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52 | buf = (char *)malloc(3); |
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53 | fread(buf, 3, 1, hogfile); |
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54 | printf("Extracting from: %s\n", argv[1]); |
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55 | free(buf); |
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56 | while(ftell(hogfile)<statbuf.st_size) { |
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57 | fread(filename, 13, 1, hogfile); |
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58 | fread(&len, 1, 4, hogfile); |
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59 | #ifdef WORDS_BIGENDIAN |
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60 | len = SWAPINT(len); |
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61 | #endif |
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62 | if (argc > 2 && strcmp(argv[2], filename)) |
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63 | fseek(hogfile, len, SEEK_CUR); |
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64 | else { |
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65 | printf("Filename: %s \tLength: %i\n", filename, len); |
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66 | if (v) |
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67 | fseek(hogfile, len, SEEK_CUR); |
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68 | else { |
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69 | buf = (char *)malloc(len); |
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70 | if (buf == NULL) { |
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71 | printf("Unable to allocate memory\n"); |
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72 | } else { |
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73 | fread(buf, len, 1, hogfile); |
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74 | writefile = fopen(filename, "wb"); |
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75 | fwrite(buf, len, 1, writefile); |
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76 | fclose(writefile); |
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77 | free(buf); |
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78 | } |
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79 | } |
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80 | } |
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81 | } |
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82 | fclose(hogfile); |
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83 | |||
84 | return 0; |
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85 | } |