cat.c

   1 /*
   2  * Simple cat implemention.
   3  *
   4  * Copyright (C) 2009 Liu Aleaxander -- All rights reserved. This file
   5  * may be redistributed under the terms of the GNU Public License.
   6  */
   7
   8 #include <stdio.h>
   9 #include <string.h>
  10 #include "fstk.h"
  11 #include "fstklib.h"
  12 #include "file.h"
  13 #include <unistd.h>
  14
  15 void fstk_cat(struct fstk *fs, int argc, char *argv[])
  16 {
  17         char buf[2048] = {0,};
  18         int bytes_read;
  19         int i = 1;
  20         struct file *file;
  21
  22         for (; i < argc; i++) {
  23                 file = fstk_open(fs, argv[i]);
  24                 if (!file) {
  25                         printf("cat: can't access %s: "
  26                                "No such file or directory\n", argv[i]);
  27                         continue;
  28                 }
  29                 if (file->inode->mode == DIR_TYPE) {
  30                         printf("cat: %s: is a directory\n", argv[i]);
  31                         fstk_close(file);
  32                         continue;
  33                 }
  34
  35                 while ((bytes_read = fstk_read(file, buf, 2048)) >= 0) {
  36                         write(1, buf, bytes_read);
  37                 }
  38                 printf("\n");
  39                 fstk_close(file);
  40         }
  41 }