obprintf_chk.c 1.3 KB

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  1. /* Print output of stream to given obstack.
  2. Copyright (C) 1996-2026 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Lesser General Public
  6. License as published by the Free Software Foundation; either
  7. version 2.1 of the License, or (at your option) any later version.
  8. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, see
  14. <https://www.gnu.org/licenses/>. */
  15. #include <libio/libioP.h>
  16. #include <stdarg.h>
  17. int
  18. __obstack_printf_chk (struct obstack *obstack, int flag, const char *format,
  19. ...)
  20. {
  21. /* For flag > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n
  22. can only come from read-only format strings. */
  23. unsigned int mode = (flag > 0) ? PRINTF_FORTIFY : 0;
  24. va_list ap;
  25. int ret;
  26. va_start (ap, format);
  27. ret = __obstack_vprintf_internal (obstack, format, ap, mode);
  28. va_end (ap);
  29. return ret;
  30. }