getnetbynm.c 1.3 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 __FORCE_GLIBC
  18. #include <features.h>
  19. #include <netdb.h>
  20. #include <string.h>
  21. #include <unistd.h>
  22. extern smallint _net_stayopen attribute_hidden;
  23. struct netent *
  24. getnetbyname(const char *name)
  25. {
  26. register struct netent *p;
  27. register char **cp;
  28. setnetent(_net_stayopen);
  29. while ((p = getnetent())) {
  30. if (strcmp(p->n_name, name) == 0)
  31. break;
  32. for (cp = p->n_aliases; *cp != 0; cp++)
  33. if (strcmp(*cp, name) == 0)
  34. goto found;
  35. }
  36. found:
  37. if (!_net_stayopen)
  38. endnetent();
  39. return (p);
  40. }