src/statichuff/main.c

   1
   2 #include "statichuff.h"
   3 #include <stdlib.h>
   4
   5 int main(int argc, char* argv[])
   6 {
   7         int cflag = 0;
   8         int dflag = 0;
   9         int tflag = 0;
  10         long int volumesize = 0;
  11         int ch;
  12         HUFF_STATE *shuff;
  13
  14         while ((ch = getopt(argc, argv, "cdt:")) != -1) {
  15
  16                 switch (ch) {
  17                         case 'c': cflag = 1;
  18                                           break;
  19
  20                         case 'd': dflag = 1;
  21                                           break;
  22
  23                         case 't': tflag = 1;
  24                                           volumesize = atoi(optarg);
  25                                           break;
  26
  27                         default: fprintf(stderr, "Usage: %s [-cdt] sourcefile targetfile\n", argv[0]);
  28                                          return(2);
  29                 }
  30         }
  31
  32         if ( (argc == 1) || (cflag & dflag) || !(cflag | dflag) || ((argc - optind) < 2) ) {
  33                 fprintf(stderr, "Usage: %s [-cdt] sourcefile targetfile\n", argv[0]);
  34                 if ((tflag == 1) && (volumesize < 0)) fprintf(stderr,"Error: The volume size must be a non-zero value\n");
  35                 return (2);
  36         }
  37
  38         if (cflag == 1) {
  39                 /* Comprimo */
  40                 shuff = shuff_init_static_byfile(argv[optind],argv[optind+1],volumesize*1024);
  41             shuff_encode_file(shuff);
  42                 shuff_deinit_static_byfile(shuff);
  43                 free(shuff);
  44         }
  45
  46         if (dflag == 1) {
  47                 /* Descomprimo */
  48                 shuff = shuff_init_static_byfile(argv[optind],argv[optind+1],0);
  49                 shuff_decode_file(shuff);
  50                 shuff_deinit_static_byfile(shuff);
  51                 free(shuff);
  52         }
  53
  54         return 0;
  55 }