getnetbyad.c 1.2 KB

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  1. /*
  2. * Copyright (c) 1983 Regents of the University of California.
  3. * All rights reserved.
  4. *
  5. * Redistribution and use in source and binary forms are permitted
  6. * provided that the above copyright notice and this paragraph are
  7. * duplicated in all such forms and that any documentation,
  8. * advertising materials, and other materials related to such
  9. * distribution and use acknowledge that the software was developed
  10. * by the University of California, Berkeley. The name of the
  11. * University may not be used to endorse or promote products derived
  12. * from this software without specific prior written permission.
  13. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  14. * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  15. * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  16. */
  17. #define setnetent __setnetent
  18. #define getnetent __getnetent
  19. #define endnetent __endnetent
  20. #define __FORCE_GLIBC
  21. #include <features.h>
  22. #include <netdb.h>
  23. extern int _net_stayopen;
  24. struct netent *getnetbyaddr (uint32_t net, int type)
  25. {
  26. register struct netent *p;
  27. setnetent(_net_stayopen);
  28. while ((p = getnetent()))
  29. if (p->n_addrtype == type && p->n_net == net)
  30. break;
  31. if (!_net_stayopen)
  32. endnetent();
  33. return (p);
  34. }