minix/fs/isofs/link.c

   1 #include "inc.h"
   2
   3 ssize_t fs_rdlink(ino_t ino_nr, struct fsdriver_data *data, size_t bytes)
   4 {
   5         struct inode *i_node;
   6         size_t len = 0;
   7         int r;
   8
   9         /* Try to get inode according to its index */
  10         if ((i_node = get_inode(ino_nr)) == NULL)
  11                 return EINVAL; /* no inode found */
  12
  13         if (!S_ISLNK(i_node->i_stat.st_mode))
  14                 return EACCES;
  15
  16         len = strlen(i_node->s_name);
  17         if (len > bytes)
  18                 len = bytes;
  19
  20         if ((r = fsdriver_copyout(data, 0, i_node->s_name, len)) != OK)
  21                 return r;
  22
  23         return len;
  24 }