1  /* Allocate a fixed-size allocation buffer using malloc.
       2     Copyright (C) 2017-2023 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 <alloc_buffer.h>
      20  
      21  #include <stdlib.h>
      22  
      23  struct alloc_buffer
      24  __libc_alloc_buffer_allocate (size_t size, void **pptr)
      25  {
      26    *pptr = malloc (size);
      27    if (*pptr == NULL)
      28      return (struct alloc_buffer)
      29        {
      30          .__alloc_buffer_current = __ALLOC_BUFFER_INVALID_POINTER,
      31          .__alloc_buffer_end = __ALLOC_BUFFER_INVALID_POINTER
      32        };
      33    else
      34      return alloc_buffer_create (*pptr, size);
      35  }
      36  libc_hidden_def (__libc_alloc_buffer_allocate)