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#include <fs/types.h>
#include <fs/errno.h>
#include <fs/task.h>
#include <fs/util.h>
#include <fs/maccess.h>

#include "file.h"
#include "fs.h"

int k_getcwd(char *buf, size_t sz)
{
  char *cwd;
  int len;
  __pid_t pid;

  call_to_fs();
 
  pid=__get_pid();  
  lock_desctable(pid);
  cwd=cwd_ptr(pid);
  if (buf==NULL||strlen(cwd)>=sz) {
    unlock_desctable(pid);
    return_from_fs(-ERANGE);
  }
  len=strlen(cwd)+1;
  if (!__verify_write(buf,len)) {
    unlock_desctable(pid);
    return_from_fs(-EVERIFY);
  }
  __copy_to_user(buf,cwd,len);
  unlock_desctable(pid);
  return_from_fs(EOK);
}