git.sur5r.net Git - c128-kasse/blob - src/cat.c

   1 #include <stdio.h>
   2 #include <conio.h>
   3 #include <string.h>
   4 #include <dirent.h>
   5 #include <stdlib.h>
   6
   7 #include "general.h"
   8
   9 #define x2(x) (buffer[x] < 10 ? "0" : ""), buffer[x]
  10
  11 int main() {
  12         char *filename = NULL;
  13         FILE *file;
  14         unsigned int c;
  15         unsigned char i;
  16         char buffer[8];
  17         char readable[9];
  18
  19         memset(readable, '\0', 9);
  20
  21         while (1) {
  22                 clrscr();
  23                 while (filename == NULL || *filename == '\0') {
  24                         printf("Please enter filename (q to exit):\r\n");
  25                         filename = get_input();
  26                 }
  27                 if (*filename == 'q')
  28                         return 0;
  29                 c = 0;
  30                 if ((file = fopen(filename, "r")) == NULL) {
  31                         printf("Could not open file\r\n");
  32                         continue;
  33                 }
  34                 clrscr();
  35                 while (!feof(file)) {
  36                         if (fgets(buffer, 8, file) != buffer) {
  37                                 printf("Could not read from file, bailing out\r\n");
  38                                 return 1;
  39                         }
  40                         for (i = 0; i < 8; i++)
  41                                 if (    (buffer[i] >= 0x41 && buffer[i] <= 0x5A) ||
  42                                         (buffer[i] >= 0xC1 && buffer[i] <= 0xDA) ||
  43                                         (buffer[i] >= 0x30 && buffer[i] <= 0x39))
  44                                         readable[i] = buffer[i];
  45                                 else readable[i] = 0x2E;
  46                         printf("%s%x |%s%x %s%x %s%x %s%x %s%x %s%x %s%x %s%x| %s \n",
  47                                 (c <= 0xF ? "0" : ""), c,
  48                                 x2(0), x2(1), x2(2), x2(3),
  49                                 x2(4), x2(5), x2(6), x2(7),
  50                                 readable);
  51                         c++;
  52                         if ((c % 20) == 0) {
  53                                 get_input();
  54                                 clrscr();
  55                         }
  56                 }
  57                 fclose(file);
  58                 filename = NULL;
  59                 printf("File finished, press RETURN...\n");
  60                 get_input();
  61         }
  62 }