utility/hogextract.c

   1 /*
   2  * Written 1999 Jan 29 by Josh Cogliati
   3  * I grant this program to public domain.
   4  */
   5
   6 #include <stdio.h>
   7 #include <sys/types.h>
   8 #include <sys/stat.h>
   9 #include <fcntl.h>
  10
  11 void
  12 main(int argc, char *argv[])
  13 {
  14         FILE *hogfile, *writefile;
  15         int fp, len, fseekret=0;
  16         char filename[13];
  17         char *buf;
  18         struct stat statbuf;
  19
  20         if (argc != 2) {
  21                 printf("Usage: hogextract hogfile\n"
  22                        "extracts all the files in hogfile into the current directory\n");
  23                 exit(0);
  24         }
  25         hogfile = fopen(argv[1], "r");
  26         stat(argv[1], &statbuf);
  27         printf("%i\n", statbuf.st_size);
  28         buf = (char *)malloc(3);
  29         fread(buf, 3, 1, hogfile);
  30         printf("Extracting from: %s\n", argv[1]);
  31         free(buf);
  32         while(ftell(hogfile)<statbuf.st_size) {
  33                 fread(filename, 13, 1, hogfile);
  34                 fread(&len, sizeof(int), 1, hogfile);
  35                 printf("Filename: %s \tLength: %i\n", filename, len);
  36                 buf = (char *)malloc(len);
  37                 if (buf == NULL) {
  38                         printf("Unable to allocate memory\n");
  39                 } else {
  40                         fread(buf, len, 1, hogfile);
  41                         writefile = fopen(filename, "w");
  42                         fwrite(buf, len, 1, writefile);
  43                         fclose(writefile);
  44                         free(buf);
  45                 }
  46         }
  47         fclose(hogfile);
  48 }