diff options
Diffstat (limited to 'stdio-common/reg-modifier.c')
| -rw-r--r-- | stdio-common/reg-modifier.c | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/stdio-common/reg-modifier.c b/stdio-common/reg-modifier.c deleted file mode 100644 index 783dcd3273..0000000000 --- a/stdio-common/reg-modifier.c +++ /dev/null @@ -1,202 +0,0 @@ -/* Copyright (C) 2009-2017 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 - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <limits.h> -#include <printf.h> -#include <stdlib.h> -#include <wchar.h> -#include <libc-lock.h> - - -struct printf_modifier_record -{ - struct printf_modifier_record *next; - int bit; - wchar_t str[0]; -}; - -struct printf_modifier_record **__printf_modifier_table attribute_hidden; - -__libc_lock_define_initialized (static, lock) - -/* Bits to hand out. */ -static int next_bit; - - -int -__register_printf_modifier (const wchar_t *str) -{ - if (str[0] == L'\0') - { - einval: - __set_errno (EINVAL); - return -1; - } - - const wchar_t *wc = str; - while (*wc != L'\0') - if (*wc < 0 || *wc > (wchar_t) UCHAR_MAX) - goto einval; - else - ++wc; - - if (next_bit / 8 == sizeof (((struct printf_info *) NULL)->user)) - { - __set_errno (ENOSPC); - return -1; - } - - int result = -1; - __libc_lock_lock (lock); - - if (__printf_modifier_table == NULL) - { - __printf_modifier_table = calloc (UCHAR_MAX, - sizeof (*__printf_modifier_table)); - if (__printf_modifier_table == NULL) - goto out; - } - - /* Create enough room for the string. But we don't need the first - character. */ - struct printf_modifier_record *newp = malloc (sizeof (*newp) - + ((wc - str) - * sizeof (wchar_t))); - if (newp == NULL) - goto out; - - newp->next = __printf_modifier_table[(unsigned char) *str]; - newp->bit = 1 << next_bit++; - __wmemcpy (newp->str, str + 1, wc - str); - - __printf_modifier_table[(unsigned char) *str] = newp; - - result = newp->bit; - - out: - __libc_lock_unlock (lock); - - return result; -} -weak_alias (__register_printf_modifier, register_printf_modifier) - - -#include <stdio.h> -int -attribute_hidden -__handle_registered_modifier_mb (const unsigned char **format, - struct printf_info *info) -{ - struct printf_modifier_record *runp = __printf_modifier_table[**format]; - - int best_bit = 0; - int best_len = 0; - const unsigned char *best_cp = NULL; - - while (runp != NULL) - { - const unsigned char *cp = *format + 1; - wchar_t *fcp = runp->str; - - while (*cp != '\0' && *fcp != L'\0') - if (*cp != *fcp) - break; - else - ++cp, ++fcp; - - if (*fcp == L'\0' && cp - *format > best_len) - { - best_cp = cp; - best_len = cp - *format; - best_bit = runp->bit; - } - - runp = runp->next; - } - - if (best_bit != 0) - { - info->user |= best_bit; - *format = best_cp; - return 0; - } - - return 1; -} - - -int -attribute_hidden -__handle_registered_modifier_wc (const unsigned int **format, - struct printf_info *info) -{ - struct printf_modifier_record *runp = __printf_modifier_table[**format]; - - int best_bit = 0; - int best_len = 0; - const unsigned int *best_cp = NULL; - - while (runp != NULL) - { - const unsigned int *cp = *format + 1; - wchar_t *fcp = runp->str; - - while (*cp != '\0' && *fcp != L'\0') - if (*cp != *fcp) - break; - else - ++cp, ++fcp; - - if (*fcp == L'\0' && cp - *format > best_len) - { - best_cp = cp; - best_len = cp - *format; - best_bit = runp->bit; - } - - runp = runp->next; - } - - if (best_bit != 0) - { - info->user |= best_bit; - *format = best_cp; - return 0; - } - - return 1; -} - - -libc_freeres_fn (free_mem) -{ - if (__printf_modifier_table != NULL) - { - for (int i = 0; i < UCHAR_MAX; ++i) - { - struct printf_modifier_record *runp = __printf_modifier_table[i]; - while (runp != NULL) - { - struct printf_modifier_record *oldp = runp; - runp = runp->next; - free (oldp); - } - } - free (__printf_modifier_table); - } -} |