text: #include <Node.h>
  
  #include <stdio.h>
  #include <string.h>
  
  
  int
  main(int argc, char **argv)
  {
  	if (argc != 2) {
  		fprintf(stderr, "usage: lock_node <file>\n");
  		return 1;
  	}
  
  	BNode node;
  	status_t status = node.SetTo(argv[1]);
  	if (status != B_OK) {
  		fprintf(stderr, "lock_node: could not open \"%s\": %s\n", argv[1], strerror(status));
  		return 1;
  	}
  
  	status = node.Lock();
  	if (status != B_OK) {
  		fprintf(stderr, "lock_node: could not lock \"%s\": %s\n", argv[1], strerror(status));
  		return 1;
  	}
  
  	puts("press <enter> to continue...");
  	char a[5];
  	fgets(a, 5, stdin);
  
  	node.Unlock();
  	node.Unset();
  	return 0;
  }
  
  