mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 00:31:08 +00:00
62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
/* Copyright (C) 2009-2023 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <printf.h>
|
|
#include <stdlib.h>
|
|
#include <libc-lock.h>
|
|
|
|
|
|
/* Array of functions indexed by format character. */
|
|
libc_freeres_ptr (printf_va_arg_function **__printf_va_arg_table)
|
|
attribute_hidden;
|
|
|
|
__libc_lock_define_initialized (static, lock);
|
|
|
|
/* Last type allocated. */
|
|
static int pa_next_type = PA_LAST;
|
|
|
|
|
|
int
|
|
__register_printf_type (printf_va_arg_function fct)
|
|
{
|
|
int result = -1;
|
|
__libc_lock_lock (lock);
|
|
|
|
if (__printf_va_arg_table == NULL)
|
|
{
|
|
__printf_va_arg_table = (printf_va_arg_function **)
|
|
calloc (0x100 - PA_LAST, sizeof (void *));
|
|
if (__printf_va_arg_table == NULL)
|
|
goto out;
|
|
}
|
|
|
|
if (pa_next_type == 0x100)
|
|
__set_errno (ENOSPC);
|
|
else
|
|
{
|
|
result = pa_next_type++;
|
|
__printf_va_arg_table[result - PA_LAST] = fct;
|
|
}
|
|
|
|
out:
|
|
__libc_lock_unlock (lock);
|
|
|
|
return result;
|
|
}
|
|
weak_alias (__register_printf_type, register_printf_type)
|