/crypto/heimdal/lib/roken/closefrom.c

https://bitbucket.org/freebsd/freebsd-head/ · C · 57 lines · 18 code · 7 blank · 32 comment · 2 complexity · ae989491878fda488ec051cfb6ab3065 MD5 · raw file

  1. /*
  2. * Copyright (c) 2005 Kungliga Tekniska Hรถgskolan
  3. * (Royal Institute of Technology, Stockholm, Sweden).
  4. * All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without
  7. * modification, are permitted provided that the following conditions
  8. * are met:
  9. *
  10. * 1. Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. *
  13. * 2. Redistributions in binary form must reproduce the above copyright
  14. * notice, this list of conditions and the following disclaimer in the
  15. * documentation and/or other materials provided with the distribution.
  16. *
  17. * 3. Neither the name of the Institute nor the names of its contributors
  18. * may be used to endorse or promote products derived from this software
  19. * without specific prior written permission.
  20. *
  21. * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24. * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31. * SUCH DAMAGE.
  32. */
  33. #include <config.h>
  34. #ifdef HAVE_SYS_TYPES_H
  35. #include <sys/types.h>
  36. #endif
  37. #ifdef HAVE_UNISTD_H
  38. #include <unistd.h>
  39. #endif
  40. #include "roken.h"
  41. ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
  42. closefrom(int fd)
  43. {
  44. int num = getdtablesize();
  45. if (num < 0)
  46. num = 1024; /* XXX */
  47. for (; fd <= num; fd++)
  48. close(fd);
  49. return 0;
  50. }