projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 9d26efa9 UD |
1 | /* Copyright (C) 2009 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. | |
| 3 | ||
| 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 | ||
| 9 | The GNU C Library is distributed in the hope that it will be useful, | |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | Lesser General Public License for more details. | |
| 13 | ||
| 14 | You should have received a copy of the GNU Lesser General Public | |
| 15 | License along with the GNU C Library; if not, write to the Free | |
| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 17 | 02111-1307 USA. */ | |
| 18 | ||
| 19 | #include <errno.h> | |
| 20 | #include <printf.h> | |
| 21 | #include <stdlib.h> | |
| 22 | #include <bits/libc-lock.h> | |
| 23 | ||
| 24 | ||
| 25 | /* Array of functions indexed by format character. */ | |
| 26 | libc_freeres_ptr (printf_va_arg_function **__printf_va_arg_table) | |
| 27 | attribute_hidden; | |
| 28 | ||
| 29 | __libc_lock_define_initialized (static, lock); | |
| 30 | ||
| 31 | /* Last type allocated. */ | |
| 32 | static int pa_next_type = PA_LAST; | |
| 33 | ||
| 34 | ||
| 35 | int | |
| 36 | __register_printf_type (printf_va_arg_function fct) | |
| 37 | { | |
| 38 | int result = -1; | |
| 39 | __libc_lock_lock (lock); | |
| 40 | ||
| 41 | if (__printf_va_arg_table == NULL) | |
| 42 | { | |
| 43 | __printf_va_arg_table = (printf_va_arg_function **) | |
| 44 | calloc (0x100 - PA_LAST, sizeof (void *)); | |
| 45 | if (__printf_va_arg_table == NULL) | |
| 46 | goto out; | |
| 47 | } | |
| 48 | ||
| 49 | if (pa_next_type == 0x100) | |
| 50 | __set_errno (ENOSPC); | |
| 51 | else | |
| 52 | { | |
| 53 | result = pa_next_type++; | |
| 54 | __printf_va_arg_table[result - PA_LAST] = fct; | |
| 55 | } | |
| 56 | ||
| 57 | out: | |
| 58 | __libc_lock_unlock (lock); | |
| 59 | ||
| 60 | return result; | |
| 61 | } | |
| 62 | weak_alias (__register_printf_type, register_printf_type) |