src/kat.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36

#include <fcntl.h>
#include <stdio.h>
#include <stdio.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <unistd.h>

#include "util/map.h"

int entry_kat(int argc, char **argv) {
  if (argc == 2 && strcmp(argv[1], "-h") == 0) {
    fprintf(stderr, "Gebruik: kat [BESTAND]...\n"
                    "\n"
                    "Schakel BESTAND(en) aaneen naar standaard uitvoer.\n");
    return 0;
  }

  for (int i = 1; i < argc; i++) {
    const char *fname = argv[i];
    struct map *map = open_map(fname);
    if (map == NULL) {
      return 1;
    }

    if (map->sb.st_size >= 0) {
      for (size_t i = 0; i < (size_t)map->sb.st_size; i++) {
        putchar(map->addr[i]);
      }
    }

    close_map(map);
  }

  return 0;
}