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 <sys/types.h>
   6 #include <stdlib.h>
   7
   8 #include "general.h"
   9
  10 #define x2(x) (buffer[x] < 10 ? "0" : ""), buffer[x]
  11
  12 int main() {
  13         char *filename = NULL;
  14         FILE *file;
  15         unsigned int c;
  16         unsigned char i;
  17         char buffer[8];
  18         char readable[9];
  19
  20         memset(readable, '\0', 9);
  21
  22         while (1) {
  23                 clrscr();
  24                 while (filename == NULL || *filename == '\0') {
  25                         printf("Please enter filename (q to exit):\r\n");
  26                         filename = get_input();
  27                 }
  28                 if (*filename == 'q')
  29                         return 0;
  30                 c = 0;
  31                 if ((file = fopen(filename, "r")) == NULL) {
  32                         printf("Could not open file\r\n");
  33                         continue;
  34                 }
  35                 clrscr();
  36                 while (!feof(file)) {
  37                         if (fgets(buffer, 8, file) != buffer) {
  38                                 printf("Could not read from file, bailing out\r\n");
  39                                 return 1;
  40                         }
  41                         for (i = 0; i < 8; i++)
  42                                 if (    (buffer[i] >= 0x41 && buffer[i] <= 0x5A) ||
  43                                         (buffer[i] >= 0xC1 && buffer[i] <= 0xDA) ||
  44                                         (buffer[i] >= 0x30 && buffer[i] <= 0x39))
  45                                         readable[i] = buffer[i];
  46                                 else readable[i] = 0x2E;
  47                         printf("%s%x |%s%x %s%x %s%x %s%x %s%x %s%x %s%x %s%x| %s \n",
  48                                 (c <= 0xF ? "0" : ""), c,
  49                                 x2(0), x2(1), x2(2), x2(3),
  50                                 x2(4), x2(5), x2(6), x2(7),
  51                                 readable);
  52                         c++;
  53                         if ((c % 20) == 0) {
  54                                 get_input();
  55                                 clrscr();
  56                         }
  57                 }
  58                 fclose(file);
  59                 filename = NULL;
  60                 printf("File finished, press RETURN...\n");
  61                 get_input();
  62         }
  63 }