malloc/dynarray_at_failure.c

   1 /* Report an dynamic array index out of bounds condition.
   2    Copyright (C) 2017-2022 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <dynarray.h>
  20 #include <stdio.h>
  21
  22 void
  23 __libc_dynarray_at_failure (size_t size, size_t index)
  24 {
  25 #ifdef _LIBC
  26   char buf[200];
  27   __snprintf (buf, sizeof (buf), "Fatal glibc error: "
  28               "array index %zu not less than array length %zu\n",
  29               index, size);
  30  __libc_fatal (buf);
  31 #else
  32  abort ();
  33 #endif
  34 }
  35 libc_hidden_def (__libc_dynarray_at_failure)