#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "../include/my.h"

#define BUF_SIZE 4096

void    err(char *argv, int who)
{
  my_putstr("cat : ");
  my_putstr(argv);
  if (who == 1)
    my_putstr(": No such file or directory\n");
  else if (who == 2)
    my_putstr(": Is a directory\n");
  else if (who == 3)
    my_putstr(": Permission denied\n");
}

int my_cat(int fd, char *argv)
{
  char  buf[BUF_SIZE + 1];
  int   ret;

  while (ret = read(fd, buf, BUF_SIZE))
    {
      if (ret == -1)
    {
      err(argv, 2);
      return (1);
    }
      buf[ret] = '\0';
      my_putstr(buf);
    }
  return (0);
}

int main(int argc, char **argv)
{
  int   i;
  int   fd;

  i = 1;
  if (argc != 1)
    {
      while (i < argc)
    {
      fd = open(argv[i], O_RDONLY);
      if (errno == EACCES)
        err(argv[i], 3);
      else if (errno == ENOENT)
        err(argv[i], 1);
      else
        my_cat(fd, argv[i]);
      close(fd);
      i = i  + 1;
    }
    }
  else
    my_cat(0, "");
  return (0);
}