1993 lines
46 KiB
C
1993 lines
46 KiB
C
/* Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <assert.h>
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#include <errno.h>
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#include <limits.h>
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#include <ctype.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wchar.h>
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#include <wctype.h>
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#include <bits/libc-lock.h>
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#include <locale/localeinfo.h>
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#ifdef __GNUC__
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# define HAVE_LONGLONG
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# define LONGLONG long long
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#else
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# define LONGLONG long
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#endif
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/* Determine whether we have to handle `long long' at all. */
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#if LONG_MAX == LONG_LONG_MAX
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# define need_longlong 0
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#else
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# define need_longlong 1
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#endif
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/* Determine whether we have to handle `long'. */
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#if INT_MAX == LONG_MAX
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# define need_long 0
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#else
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# define need_long 1
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#endif
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/* Those are flags in the conversion format. */
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#define LONG 0x001 /* l: long or double */
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#define LONGDBL 0x002 /* L: long long or long double */
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#define SHORT 0x004 /* h: short */
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#define SUPPRESS 0x008 /* *: suppress assignment */
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#define POINTER 0x010 /* weird %p pointer (`fake hex') */
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#define NOSKIP 0x020 /* do not skip blanks */
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#define WIDTH 0x040 /* width was given */
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#define GROUP 0x080 /* ': group numbers */
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#define MALLOC 0x100 /* a: malloc strings */
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#define CHAR 0x200 /* hh: char */
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#ifdef USE_IN_LIBIO
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# include <libioP.h>
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# include <libio.h>
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# undef va_list
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# define va_list _IO_va_list
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# ifdef COMPILE_WPRINTF
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# define ungetc(c, s) ((void) (c == WEOF \
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|| (--read_in, \
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_IO_sputbackwc (s, c))))
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# define inchar() (c == WEOF ? WEOF \
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: ((c = _IO_getwc_unlocked (s)), \
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(void) (c != WEOF && ++read_in), c))
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# define MEMCPY(d, s, n) wmemcpy (d, s, n)
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# define ISSPACE(Ch) iswspace (Ch)
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# define ISDIGIT(Ch) iswdigit (Ch)
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# define ISXDIGIT(Ch) iswxdigit (Ch)
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# define TOLOWER(Ch) towlower (Ch)
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# define ORIENT if (s->_vtable_offset == 0 && _IO_fwide (s, 1) != 1)\
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return EOF
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# define __strtoll_internal __wcstoll_internal
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# define __strtoull_internal __wcstoull_internal
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# define __strtol_internal __wcstol_internal
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# define __strtoul_internal __wcstoul_internal
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# define __strtold_internal __wcstold_internal
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# define __strtod_internal __wcstod_internal
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# define __strtof_internal __wcstof_internal
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# define L_(Str) L##Str
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# define CHAR_T wchar_t
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# define UCHAR_T unsigned int
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# define WINT_T wint_t
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# else
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# define ungetc(c, s) ((void) ((int) c == EOF \
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|| (--read_in, \
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_IO_sputbackc (s, (unsigned char) c))))
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# define inchar() (c == EOF ? EOF \
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: ((c = _IO_getc_unlocked (s)), \
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(void) (c != EOF && ++read_in), c))
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# define MEMCPY(d, s, n) memcpy (d, s, n)
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# define ISSPACE(Ch) isspace (Ch)
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# define ISDIGIT(Ch) isdigit (Ch)
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# define ISXDIGIT(Ch) isxdigit (Ch)
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# define TOLOWER(Ch) tolower (Ch)
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# define ORIENT if (_IO_fwide (s, -1) != -1) return EOF
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# define L_(Str) Str
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# define CHAR_T char
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# define UCHAR_T unsigned char
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# define WINT_T int
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# endif
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# define encode_error() do { \
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if (errp != NULL) *errp |= 4; \
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_IO_funlockfile (s); \
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__libc_cleanup_end (0); \
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__set_errno (EILSEQ); \
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return done; \
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} while (0)
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# define conv_error() do { \
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if (errp != NULL) *errp |= 2; \
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_IO_funlockfile (s); \
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__libc_cleanup_end (0); \
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return done; \
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} while (0)
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# define input_error() do { \
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_IO_funlockfile (s); \
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if (errp != NULL) *errp |= 1; \
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__libc_cleanup_end (0); \
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return done ?: EOF; \
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} while (0)
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# define memory_error() do { \
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_IO_funlockfile (s); \
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__set_errno (ENOMEM); \
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__libc_cleanup_end (0); \
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return EOF; \
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} while (0)
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# define ARGCHECK(s, format) \
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do \
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{ \
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/* Check file argument for consistence. */ \
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CHECK_FILE (s, EOF); \
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if (s->_flags & _IO_NO_READS) \
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{ \
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__set_errno (EBADF); \
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return EOF; \
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} \
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else if (format == NULL) \
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{ \
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MAYBE_SET_EINVAL; \
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return EOF; \
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} \
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} while (0)
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# define LOCK_STREAM(S) \
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__libc_cleanup_region_start ((void (*) (void *)) &_IO_funlockfile, (S)); \
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_IO_flockfile (S)
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# define UNLOCK_STREAM(S) \
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_IO_funlockfile (S); \
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__libc_cleanup_region_end (0)
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#else
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# define ungetc(c, s) ((void) (c != EOF && --read_in), ungetc (c, s))
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# define inchar() (c == EOF ? EOF \
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: ((c = getc (s)), (void) (c != EOF && ++read_in), c))
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# define MEMCPY(d, s, n) memcpy (d, s, n)
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# define ISSPACE(Ch) isspace (Ch)
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# define ISDIGIT(Ch) isdigit (Ch)
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# define ISXDIGIT(Ch) isxdigit (Ch)
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# define TOLOWER(Ch) tolower (Ch)
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# define L_(Str) Str
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# define CHAR_T char
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# define UCHAR_T unsigned char
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# define WINT_T int
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# define encode_error() do { \
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funlockfile (s); \
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__set_errno (EILSEQ); \
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return done; \
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} while (0)
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# define conv_error() do { \
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funlockfile (s); \
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return done; \
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} while (0)
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# define input_error() do { \
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funlockfile (s); \
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return done ?: EOF; \
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} while (0)
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# define memory_error() do { \
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funlockfile (s); \
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__set_errno (ENOMEM); \
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return EOF; \
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} while (0)
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# define ARGCHECK(s, format) \
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do \
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{ \
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/* Check file argument for consistence. */ \
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if (!__validfp (s) || !s->__mode.__read) \
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{ \
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__set_errno (EBADF); \
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return EOF; \
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} \
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else if (format == NULL) \
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{ \
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__set_errno (EINVAL); \
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return EOF; \
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} \
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} while (0)
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#if 1
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/* XXX For now !!! */
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# define flockfile(S) /* nothing */
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# define funlockfile(S) /* nothing */
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# define LOCK_STREAM(S)
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# define UNLOCK_STREAM(S)
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#else
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# define LOCK_STREAM(S) \
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__libc_cleanup_region_start (&__funlockfile, (S)); \
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__flockfile (S)
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# define UNLOCK_STREAM(S) \
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__funlockfile (S); \
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__libc_cleanup_region_end (0)
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#endif
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#endif
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/* Read formatted input from S according to the format string
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FORMAT, using the argument list in ARG.
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Return the number of assignments made, or -1 for an input error. */
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#ifdef USE_IN_LIBIO
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# ifdef COMPILE_WPRINTF
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int
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_IO_vfwscanf (s, format, argptr, errp)
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_IO_FILE *s;
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const wchar_t *format;
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_IO_va_list argptr;
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int *errp;
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# else
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int
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_IO_vfscanf (s, format, argptr, errp)
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_IO_FILE *s;
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const char *format;
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_IO_va_list argptr;
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int *errp;
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# endif
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#else
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int
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__vfscanf (FILE *s, const char *format, va_list argptr)
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#endif
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{
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va_list arg;
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register const CHAR_T *f = format;
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register UCHAR_T fc; /* Current character of the format. */
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register size_t done = 0; /* Assignments done. */
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register size_t read_in = 0; /* Chars read in. */
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register WINT_T c = 0; /* Last char read. */
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register int width; /* Maximum field width. */
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register int flags; /* Modifiers for current format element. */
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/* Status for reading F-P nums. */
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char got_dot, got_e, negative;
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/* If a [...] is a [^...]. */
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CHAR_T not_in;
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#define exp_char not_in
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/* Base for integral numbers. */
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int base;
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/* Signedness for integral numbers. */
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int number_signed;
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#define is_hexa number_signed
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/* Decimal point character. */
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wchar_t decimal;
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/* The thousands character of the current locale. */
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wchar_t thousands;
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/* State for the conversions. */
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mbstate_t state;
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/* Integral holding variables. */
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union
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{
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long long int q;
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unsigned long long int uq;
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long int l;
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unsigned long int ul;
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} num;
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/* Character-buffer pointer. */
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char *str = NULL;
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wchar_t *wstr = NULL;
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char **strptr = NULL;
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size_t strsize = 0;
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/* We must not react on white spaces immediately because they can
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possibly be matched even if in the input stream no character is
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available anymore. */
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int skip_space = 0;
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/* Nonzero if we are reading a pointer. */
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int read_pointer;
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/* Workspace. */
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CHAR_T *tw; /* Temporary pointer. */
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CHAR_T *wp = NULL; /* Workspace. */
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size_t wpmax = 0; /* Maximal size of workspace. */
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size_t wpsize; /* Currently used bytes in workspace. */
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#define ADDW(Ch) \
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do \
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{ \
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if (wpsize == wpmax) \
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{ \
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CHAR_T *old = wp; \
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wpmax = UCHAR_MAX > 2 * wpmax ? UCHAR_MAX : 2 * wpmax; \
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wp = (CHAR_T *) alloca (wpmax * sizeof (wchar_t)); \
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if (old != NULL) \
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MEMCPY (wp, old, wpsize); \
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} \
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wp[wpsize++] = (Ch); \
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} \
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while (0)
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#ifdef __va_copy
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__va_copy (arg, argptr);
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#else
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arg = (va_list) argptr;
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#endif
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#ifdef ORIENT
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ORIENT;
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#endif
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ARGCHECK (s, format);
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/* Figure out the decimal point character. */
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memset (&state, '\0', sizeof (state));
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if (__mbrtowc (&decimal, _NL_CURRENT (LC_NUMERIC, DECIMAL_POINT),
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strlen (_NL_CURRENT (LC_NUMERIC, DECIMAL_POINT)), &state)
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<= 0)
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decimal = (wchar_t) *_NL_CURRENT (LC_NUMERIC, DECIMAL_POINT);
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/* Figure out the thousands separator character. */
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memset (&state, '\0', sizeof (state));
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if (__mbrtowc (&thousands, _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP),
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strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP)),
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&state) <= 0)
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thousands = (wchar_t) *_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
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/* Lock the stream. */
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LOCK_STREAM (s);
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#ifndef COMPILE_WPRINTF
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/* From now on we use `state' to convert the format string. */
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memset (&state, '\0', sizeof (state));
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#endif
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/* Run through the format string. */
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while (*f != '\0')
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{
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unsigned int argpos;
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/* Extract the next argument, which is of type TYPE.
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For a %N$... spec, this is the Nth argument from the beginning;
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otherwise it is the next argument after the state now in ARG. */
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#ifdef __va_copy
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# define ARG(type) (argpos == 0 ? va_arg (arg, type) : \
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({ unsigned int pos = argpos; \
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va_list arg; \
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__va_copy (arg, argptr); \
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while (--pos > 0) \
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(void) va_arg (arg, void *); \
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va_arg (arg, type); \
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}))
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#else
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# if 0
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/* XXX Possible optimization. */
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# define ARG(type) (argpos == 0 ? va_arg (arg, type) : \
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({ va_list arg = (va_list) argptr; \
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arg = (va_list) ((char *) arg \
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+ (argpos - 1) \
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* __va_rounded_size (void *)); \
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va_arg (arg, type); \
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}))
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# else
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# define ARG(type) (argpos == 0 ? va_arg (arg, type) : \
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({ unsigned int pos = argpos; \
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va_list arg = (va_list) argptr; \
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while (--pos > 0) \
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(void) va_arg (arg, void *); \
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va_arg (arg, type); \
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}))
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# endif
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#endif
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#ifndef COMPILE_WPRINTF
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if (!isascii (*f))
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{
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/* Non-ASCII, may be a multibyte. */
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int len = __mbrlen (f, strlen (f), &state);
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if (len > 0)
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{
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do
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{
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c = inchar ();
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if (c == EOF)
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input_error ();
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else if (c != *f++)
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{
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ungetc (c, s);
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conv_error ();
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}
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}
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while (--len > 0);
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continue;
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}
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}
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#endif
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fc = *f++;
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if (fc != '%')
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{
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/* Remember to skip spaces. */
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if (ISSPACE (fc))
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{
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skip_space = 1;
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continue;
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}
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/* Read a character. */
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c = inchar ();
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/* Characters other than format specs must just match. */
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if (c == EOF)
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input_error ();
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/* We saw white space char as the last character in the format
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string. Now it's time to skip all leading white space. */
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if (skip_space)
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{
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while (ISSPACE (c))
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if (inchar () == EOF && errno == EINTR)
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conv_error ();
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skip_space = 0;
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}
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if (c != fc)
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{
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ungetc (c, s);
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conv_error ();
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}
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continue;
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}
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/* This is the start of the conversion string. */
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flags = 0;
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/* Not yet decided whether we read a pointer or not. */
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read_pointer = 0;
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/* Initialize state of modifiers. */
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argpos = 0;
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/* Prepare temporary buffer. */
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wpsize = 0;
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/* Check for a positional parameter specification. */
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if (ISDIGIT (*f))
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{
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argpos = *f++ - L_('0');
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while (ISDIGIT (*f))
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argpos = argpos * 10 + (*f++ - L_('0'));
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if (*f == L_('$'))
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++f;
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else
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{
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/* Oops; that was actually the field width. */
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width = argpos;
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flags |= WIDTH;
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argpos = 0;
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goto got_width;
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}
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}
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/* Check for the assignment-suppressing and the number grouping flag. */
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while (*f == L_('*') || *f == L_('\''))
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switch (*f++)
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{
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case L_('*'):
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flags |= SUPPRESS;
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break;
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case L_('\''):
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flags |= GROUP;
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break;
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}
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/* We have seen width. */
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if (ISDIGIT (*f))
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flags |= WIDTH;
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/* Find the maximum field width. */
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width = 0;
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while (ISDIGIT (*f))
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{
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width *= 10;
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width += *f++ - L_('0');
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}
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got_width:
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if (width == 0)
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width = -1;
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/* Check for type modifiers. */
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switch (*f++)
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{
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case L_('h'):
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/* ints are short ints or chars. */
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if (*f == L_('h'))
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{
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++f;
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flags |= CHAR;
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}
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else
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flags |= SHORT;
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break;
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case L_('l'):
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if (*f == L_('l'))
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{
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/* A double `l' is equivalent to an `L'. */
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|
++f;
|
|
flags |= LONGDBL | LONG;
|
|
}
|
|
else
|
|
/* ints are long ints. */
|
|
flags |= LONG;
|
|
break;
|
|
case L_('q'):
|
|
case L_('L'):
|
|
/* doubles are long doubles, and ints are long long ints. */
|
|
flags |= LONGDBL | LONG;
|
|
break;
|
|
case L_('a'):
|
|
/* The `a' is used as a flag only if followed by `s', `S' or
|
|
`['. */
|
|
if (*f != L_('s') && *f != L_('S') && *f != L_('['))
|
|
{
|
|
--f;
|
|
break;
|
|
}
|
|
/* String conversions (%s, %[) take a `char **'
|
|
arg and fill it in with a malloc'd pointer. */
|
|
flags |= MALLOC;
|
|
break;
|
|
case L_('z'):
|
|
if (need_longlong && sizeof (size_t) > sizeof (unsigned long int))
|
|
flags |= LONGDBL;
|
|
else if (sizeof (size_t) > sizeof (unsigned int))
|
|
flags |= LONG;
|
|
break;
|
|
case L_('j'):
|
|
if (need_longlong && sizeof (uintmax_t) > sizeof (unsigned long int))
|
|
flags |= LONGDBL;
|
|
else if (sizeof (uintmax_t) > sizeof (unsigned int))
|
|
flags |= LONG;
|
|
break;
|
|
case L_('t'):
|
|
if (need_longlong && sizeof (ptrdiff_t) > sizeof (long int))
|
|
flags |= LONGDBL;
|
|
else if (sizeof (ptrdiff_t) > sizeof (int))
|
|
flags |= LONG;
|
|
break;
|
|
default:
|
|
/* Not a recognized modifier. Backup. */
|
|
--f;
|
|
break;
|
|
}
|
|
|
|
/* End of the format string? */
|
|
if (*f == L_('\0'))
|
|
conv_error ();
|
|
|
|
/* Find the conversion specifier. */
|
|
fc = *f++;
|
|
if (skip_space || (fc != L_('[') && fc != L_('c')
|
|
&& fc != L_('C') && fc != L_('n')))
|
|
{
|
|
/* Eat whitespace. */
|
|
int save_errno = errno;
|
|
errno = 0;
|
|
do
|
|
if (inchar () == EOF && errno == EINTR)
|
|
input_error ();
|
|
while (ISSPACE (c));
|
|
errno = save_errno;
|
|
ungetc (c, s);
|
|
skip_space = 0;
|
|
}
|
|
|
|
switch (fc)
|
|
{
|
|
case L_('%'): /* Must match a literal '%'. */
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
if (c != fc)
|
|
{
|
|
ungetc (c, s);
|
|
conv_error ();
|
|
}
|
|
break;
|
|
|
|
case L_('n'): /* Answer number of assignments done. */
|
|
/* Corrigendum 1 to ISO C 1990 describes the allowed flags
|
|
with the 'n' conversion specifier. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
/* Don't count the read-ahead. */
|
|
if (need_longlong && (flags & LONGDBL))
|
|
*ARG (long long int *) = read_in;
|
|
else if (need_long && (flags & LONG))
|
|
*ARG (long int *) = read_in;
|
|
else if (flags & SHORT)
|
|
*ARG (short int *) = read_in;
|
|
else if (!(flags & CHAR))
|
|
*ARG (int *) = read_in;
|
|
else
|
|
*ARG (char *) = read_in;
|
|
|
|
#ifdef NO_BUG_IN_ISO_C_CORRIGENDUM_1
|
|
/* We have a severe problem here. The ISO C standard
|
|
contradicts itself in explaining the effect of the %n
|
|
format in `scanf'. While in ISO C:1990 and the ISO C
|
|
Amendement 1:1995 the result is described as
|
|
|
|
Execution of a %n directive does not effect the
|
|
assignment count returned at the completion of
|
|
execution of the f(w)scanf function.
|
|
|
|
in ISO C Corrigendum 1:1994 the following was added:
|
|
|
|
Subclause 7.9.6.2
|
|
Add the following fourth example:
|
|
In:
|
|
#include <stdio.h>
|
|
int d1, d2, n1, n2, i;
|
|
i = sscanf("123", "%d%n%n%d", &d1, &n1, &n2, &d2);
|
|
the value 123 is assigned to d1 and the value3 to n1.
|
|
Because %n can never get an input failure the value
|
|
of 3 is also assigned to n2. The value of d2 is not
|
|
affected. The value 3 is assigned to i.
|
|
|
|
We go for now with the historically correct code from ISO C,
|
|
i.e., we don't count the %n assignments. When it ever
|
|
should proof to be wrong just remove the #ifdef above. */
|
|
++done;
|
|
#endif
|
|
}
|
|
break;
|
|
|
|
case L_('c'): /* Match characters. */
|
|
if ((flags & LONG) == 0)
|
|
{
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
str = ARG (char *);
|
|
if (str == NULL)
|
|
conv_error ();
|
|
}
|
|
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
if (width == -1)
|
|
width = 1;
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
/* We have to convert the wide character(s) into multibyte
|
|
characters and store the result. */
|
|
memset (&state, '\0', sizeof (state));
|
|
|
|
do
|
|
{
|
|
size_t n;
|
|
|
|
n = wcrtomb (!(flags & SUPPRESS) ? str : NULL, c, &state);
|
|
if (n == (size_t) -1)
|
|
/* No valid wide character. */
|
|
input_error ();
|
|
|
|
/* Increment the output pointer. Even if we don't
|
|
write anything. */
|
|
str += n;
|
|
}
|
|
while (--width > 0 && inchar () != EOF);
|
|
#else
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
do
|
|
*str++ = c;
|
|
while (--width > 0 && inchar () != EOF);
|
|
}
|
|
else
|
|
while (--width > 0 && inchar () != EOF);
|
|
#endif
|
|
|
|
if (!(flags & SUPPRESS))
|
|
++done;
|
|
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
case L_('C'):
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
wstr = ARG (wchar_t *);
|
|
if (str == NULL)
|
|
conv_error ();
|
|
}
|
|
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
/* Just store the incoming wide characters. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
do
|
|
*wstr++ = c;
|
|
while (--width > 0 && inchar () != EOF);
|
|
}
|
|
else
|
|
while (--width > 0 && inchar () != EOF);
|
|
#else
|
|
{
|
|
/* We have to convert the multibyte input sequence to wide
|
|
characters. */
|
|
char buf[MB_LEN_MAX];
|
|
mbstate_t cstate;
|
|
|
|
memset (&cstate, '\0', sizeof (cstate));
|
|
|
|
do
|
|
{
|
|
size_t cnt;
|
|
|
|
/* This is what we present the mbrtowc function first. */
|
|
buf[0] = c;
|
|
cnt = 1;
|
|
|
|
while (1)
|
|
{
|
|
size_t n;
|
|
|
|
n = __mbrtowc (!(flags & SUPPRESS) ? wstr : NULL,
|
|
buf, cnt, &cstate);
|
|
|
|
if (n == (size_t) -2)
|
|
{
|
|
/* Possibly correct character, just not enough
|
|
input. */
|
|
assert (cnt < MB_CUR_MAX);
|
|
|
|
if (inchar () == EOF)
|
|
encode_error ();
|
|
|
|
buf[cnt++] = c;
|
|
continue;
|
|
}
|
|
|
|
if (n != cnt)
|
|
encode_error ();
|
|
|
|
/* We have a match. */
|
|
break;
|
|
}
|
|
|
|
/* Advance the result pointer. */
|
|
++wstr;
|
|
}
|
|
while (--width > 0 && inchar () != EOF);
|
|
}
|
|
#endif
|
|
|
|
if (!(flags & SUPPRESS))
|
|
++done;
|
|
|
|
break;
|
|
|
|
case L_('s'): /* Read a string. */
|
|
if (!(flags & LONG))
|
|
{
|
|
#define STRING_ARG(Str, Type) \
|
|
do if (!(flags & SUPPRESS)) \
|
|
{ \
|
|
if (flags & MALLOC) \
|
|
{ \
|
|
/* The string is to be stored in a malloc'd buffer. */ \
|
|
strptr = ARG (char **); \
|
|
if (strptr == NULL) \
|
|
conv_error (); \
|
|
/* Allocate an initial buffer. */ \
|
|
strsize = 100; \
|
|
*strptr = (char *) malloc (strsize * sizeof (Type)); \
|
|
Str = (Type *) *strptr; \
|
|
} \
|
|
else \
|
|
Str = ARG (Type *); \
|
|
if (Str == NULL) \
|
|
conv_error (); \
|
|
} while (0)
|
|
STRING_ARG (str, char);
|
|
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
memset (&state, '\0', sizeof (state));
|
|
#endif
|
|
|
|
do
|
|
{
|
|
if (ISSPACE (c))
|
|
{
|
|
ungetc (c, s);
|
|
break;
|
|
}
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
/* This is quite complicated. We have to convert the
|
|
wide characters into multibyte characters and then
|
|
store them. */
|
|
{
|
|
size_t n;
|
|
|
|
if (!(flags & SUPPRESS) && (flags & MALLOC)
|
|
&& str + MB_CUR_MAX >= *strptr + strsize)
|
|
{
|
|
/* We have to enlarge the buffer if the `a' flag
|
|
was given. */
|
|
str = (char *) realloc (*strptr, strsize * 2);
|
|
if (str == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
str = (char *) realloc (*strptr, strsize + 1);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the
|
|
string and stop converting,
|
|
so at least we don't skip any input. */
|
|
((char *) (*strptr))[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
|
|
n = wcrtomb (!(flags & SUPPRESS) ? str : NULL, c, &state);
|
|
if (n == (size_t) -1)
|
|
encode_error ();
|
|
|
|
assert (n <= MB_CUR_MAX);
|
|
str += n;
|
|
}
|
|
#else
|
|
/* This is easy. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*str++ = c;
|
|
if ((flags & MALLOC)
|
|
&& (char *) str == *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
str = (char *) realloc (*strptr, 2 * strsize);
|
|
if (str == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
str = (char *) realloc (*strptr, strsize + 1);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the
|
|
string and stop converting,
|
|
so at least we don't skip any input. */
|
|
((char *) (*strptr))[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
while ((width <= 0 || --width > 0) && inchar () != EOF);
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
#ifdef COMPILE_WPRINTF
|
|
/* We have to emit the code to get into the intial
|
|
state. */
|
|
char buf[MB_LEN_MAX];
|
|
size_t n = wcrtomb (buf, L'\0', &state);
|
|
if (n > 0 && (flags & MALLOC)
|
|
&& str + n >= *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
str = (char *) realloc (*strptr,
|
|
(str + n + 1) - *strptr);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the string
|
|
and stop converting, so at least we don't
|
|
skip any input. */
|
|
((char *) (*strptr))[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str = ((char *) *strptr) + strsize;
|
|
strsize = (str + n + 1) - *strptr;
|
|
}
|
|
}
|
|
|
|
str = __mempcpy (str, buf, n);
|
|
#endif
|
|
*str = '\0';
|
|
|
|
if ((flags & MALLOC) && str - *strptr != strsize)
|
|
{
|
|
char *cp = (char *) realloc (*strptr, str - *strptr);
|
|
if (cp != NULL)
|
|
*strptr = cp;
|
|
}
|
|
|
|
++done;
|
|
}
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
|
|
case L_('S'):
|
|
{
|
|
#ifndef COMPILE_WPRINTF
|
|
mbstate_t cstate;
|
|
#endif
|
|
|
|
/* Wide character string. */
|
|
STRING_ARG (wstr, wchar_t);
|
|
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
#ifndef COMPILE_WPRINTF
|
|
memset (&cstate, '\0', sizeof (cstate));
|
|
#endif
|
|
|
|
do
|
|
{
|
|
if (ISSPACE (c))
|
|
{
|
|
ungetc (c, s);
|
|
break;
|
|
}
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
/* This is easy. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*wstr++ = c;
|
|
if ((flags & MALLOC)
|
|
&& wstr == (wchar_t *) *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
(2 * strsize)
|
|
* sizeof (wchar_t));
|
|
if (wstr == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
(strsize
|
|
+ sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the string
|
|
and stop converting, so at least we don't
|
|
skip any input. */
|
|
((wchar_t *) (*strptr))[strsize - 1] = L'\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
{
|
|
char buf[MB_LEN_MAX];
|
|
size_t cnt;
|
|
|
|
buf[0] = c;
|
|
cnt = 1;
|
|
|
|
while (1)
|
|
{
|
|
size_t n;
|
|
|
|
n = __mbrtowc (!(flags & SUPPRESS) ? wstr : NULL,
|
|
buf, cnt, &cstate);
|
|
|
|
if (n == (size_t) -2)
|
|
{
|
|
/* Possibly correct character, just not enough
|
|
input. */
|
|
assert (cnt < MB_CUR_MAX);
|
|
|
|
if (inchar () == EOF)
|
|
encode_error ();
|
|
|
|
buf[cnt++] = c;
|
|
continue;
|
|
}
|
|
|
|
if (n != cnt)
|
|
encode_error ();
|
|
|
|
/* We have a match. */
|
|
break;
|
|
}
|
|
|
|
if (!(flags & SUPPRESS) && (flags & MALLOC)
|
|
&& wstr == (wchar_t *) *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
(2 * strsize
|
|
* sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch effort. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
((strsize + 1)
|
|
* sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the
|
|
string and stop converting, so at
|
|
least we don't skip any input. */
|
|
((wchar_t *) (*strptr))[strsize - 1] = L'\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
while ((width <= 0 || --width > 0) && inchar () != EOF);
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*wstr++ = L'\0';
|
|
|
|
if ((flags & MALLOC) && wstr - (wchar_t *) *strptr != strsize)
|
|
{
|
|
wchar_t *cp = (wchar_t *) realloc (*strptr,
|
|
((wstr
|
|
- (wchar_t *) *strptr)
|
|
* sizeof(wchar_t)));
|
|
if (cp != NULL)
|
|
*strptr = (char *) cp;
|
|
}
|
|
|
|
++done;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case L_('x'): /* Hexadecimal integer. */
|
|
case L_('X'): /* Ditto. */
|
|
base = 16;
|
|
number_signed = 0;
|
|
goto number;
|
|
|
|
case L_('o'): /* Octal integer. */
|
|
base = 8;
|
|
number_signed = 0;
|
|
goto number;
|
|
|
|
case L_('u'): /* Unsigned decimal integer. */
|
|
base = 10;
|
|
number_signed = 0;
|
|
goto number;
|
|
|
|
case L_('d'): /* Signed decimal integer. */
|
|
base = 10;
|
|
number_signed = 1;
|
|
goto number;
|
|
|
|
case L_('i'): /* Generic number. */
|
|
base = 0;
|
|
number_signed = 1;
|
|
|
|
number:
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
/* Check for a sign. */
|
|
if (c == L_('-') || c == L_('+'))
|
|
{
|
|
ADDW (c);
|
|
if (width > 0)
|
|
--width;
|
|
c = inchar ();
|
|
}
|
|
|
|
/* Look for a leading indication of base. */
|
|
if (width != 0 && c == L_('0'))
|
|
{
|
|
if (width > 0)
|
|
--width;
|
|
|
|
ADDW (c);
|
|
c = inchar ();
|
|
|
|
if (width != 0 && TOLOWER (c) == L_('x'))
|
|
{
|
|
if (base == 0)
|
|
base = 16;
|
|
if (base == 16)
|
|
{
|
|
if (width > 0)
|
|
--width;
|
|
c = inchar ();
|
|
}
|
|
}
|
|
else if (base == 0)
|
|
base = 8;
|
|
}
|
|
|
|
if (base == 0)
|
|
base = 10;
|
|
|
|
/* Read the number into workspace. */
|
|
while (c != EOF && width != 0)
|
|
{
|
|
if (base == 16 ? !ISXDIGIT (c) :
|
|
((!ISDIGIT (c) || c - L_('0') >= base) &&
|
|
!((flags & GROUP) && base == 10 && c == thousands)))
|
|
break;
|
|
ADDW (c);
|
|
if (width > 0)
|
|
--width;
|
|
|
|
c = inchar ();
|
|
}
|
|
|
|
if (wpsize == 0 ||
|
|
(wpsize == 1 && (wp[0] == L_('+') || wp[0] == L_('-'))))
|
|
{
|
|
/* There was no number. If we are supposed to read a pointer
|
|
we must recognize "(nil)" as well. */
|
|
if (wpsize == 0 && read_pointer && (width < 0 || width >= 0)
|
|
&& c == '('
|
|
&& TOLOWER (inchar ()) == L_('n')
|
|
&& TOLOWER (inchar ()) == L_('i')
|
|
&& TOLOWER (inchar ()) == L_('l')
|
|
&& inchar () == L_(')'))
|
|
/* We must produce the value of a NULL pointer. A single
|
|
'0' digit is enough. */
|
|
ADDW (L_('0'));
|
|
else
|
|
{
|
|
/* The last read character is not part of the number
|
|
anymore. */
|
|
ungetc (c, s);
|
|
|
|
conv_error ();
|
|
}
|
|
}
|
|
else
|
|
/* The just read character is not part of the number anymore. */
|
|
ungetc (c, s);
|
|
|
|
/* Convert the number. */
|
|
ADDW (L_('\0'));
|
|
if (need_longlong && (flags & LONGDBL))
|
|
{
|
|
if (number_signed)
|
|
num.q = __strtoll_internal (wp, &tw, base, flags & GROUP);
|
|
else
|
|
num.uq = __strtoull_internal (wp, &tw, base, flags & GROUP);
|
|
}
|
|
else
|
|
{
|
|
if (number_signed)
|
|
num.l = __strtol_internal (wp, &tw, base, flags & GROUP);
|
|
else
|
|
num.ul = __strtoul_internal (wp, &tw, base, flags & GROUP);
|
|
}
|
|
if (wp == tw)
|
|
conv_error ();
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
if (! number_signed)
|
|
{
|
|
if (need_longlong && (flags & LONGDBL))
|
|
*ARG (unsigned LONGLONG int *) = num.uq;
|
|
else if (need_long && (flags & LONG))
|
|
*ARG (unsigned long int *) = num.ul;
|
|
else if (flags & SHORT)
|
|
*ARG (unsigned short int *)
|
|
= (unsigned short int) num.ul;
|
|
else if (!(flags & CHAR))
|
|
*ARG (unsigned int *) = (unsigned int) num.ul;
|
|
else
|
|
*ARG (unsigned char *) = (unsigned char) num.ul;
|
|
}
|
|
else
|
|
{
|
|
if (need_longlong && (flags & LONGDBL))
|
|
*ARG (LONGLONG int *) = num.q;
|
|
else if (need_long && (flags & LONG))
|
|
*ARG (long int *) = num.l;
|
|
else if (flags & SHORT)
|
|
*ARG (short int *) = (short int) num.l;
|
|
else if (!(flags & CHAR))
|
|
*ARG (int *) = (int) num.l;
|
|
else
|
|
*ARG (signed char *) = (signed char) num.ul;
|
|
}
|
|
++done;
|
|
}
|
|
break;
|
|
|
|
case L_('e'): /* Floating-point numbers. */
|
|
case L_('E'):
|
|
case L_('f'):
|
|
case L_('g'):
|
|
case L_('G'):
|
|
case L_('a'):
|
|
case L_('A'):
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
/* Check for a sign. */
|
|
if (c == L_('-') || c == L_('+'))
|
|
{
|
|
negative = c == L_('-');
|
|
if (inchar () == EOF)
|
|
/* EOF is only an input error before we read any chars. */
|
|
conv_error ();
|
|
if (! ISDIGIT (c) && c != decimal)
|
|
{
|
|
/* This is no valid number. */
|
|
ungetc (c, s);
|
|
input_error ();
|
|
}
|
|
if (width > 0)
|
|
--width;
|
|
}
|
|
else
|
|
negative = 0;
|
|
|
|
/* Take care for the special arguments "nan" and "inf". */
|
|
if (TOLOWER (c) == L_('n'))
|
|
{
|
|
/* Maybe "nan". */
|
|
ADDW (c);
|
|
if (inchar () == EOF || TOLOWER (c) != L_('a'))
|
|
input_error ();
|
|
ADDW (c);
|
|
if (inchar () == EOF || TOLOWER (c) != L_('n'))
|
|
input_error ();
|
|
ADDW (c);
|
|
/* It is "nan". */
|
|
goto scan_float;
|
|
}
|
|
else if (TOLOWER (c) == L_('i'))
|
|
{
|
|
/* Maybe "inf" or "infinity". */
|
|
ADDW (c);
|
|
if (inchar () == EOF || TOLOWER (c) != L_('n'))
|
|
input_error ();
|
|
ADDW (c);
|
|
if (inchar () == EOF || TOLOWER (c) != L_('f'))
|
|
input_error ();
|
|
ADDW (c);
|
|
/* It is as least "inf". */
|
|
if (inchar () != EOF)
|
|
{
|
|
if (TOLOWER (c) == L_('i'))
|
|
{
|
|
/* Now we have to read the rest as well. */
|
|
ADDW (c);
|
|
if (inchar () == EOF || TOLOWER (c) != L_('n'))
|
|
input_error ();
|
|
ADDW (c);
|
|
if (inchar () == EOF || TOLOWER (c) != L_('i'))
|
|
input_error ();
|
|
ADDW (c);
|
|
if (inchar () == EOF || TOLOWER (c) != L_('t'))
|
|
input_error ();
|
|
ADDW (c);
|
|
if (inchar () == EOF || TOLOWER (c) != L_('y'))
|
|
input_error ();
|
|
ADDW (c);
|
|
}
|
|
else
|
|
/* Never mind. */
|
|
ungetc (c, s);
|
|
}
|
|
goto scan_float;
|
|
}
|
|
|
|
is_hexa = 0;
|
|
exp_char = L_('e');
|
|
if (c == L_('0'))
|
|
{
|
|
ADDW (c);
|
|
c = inchar ();
|
|
if (TOLOWER (c) == L_('x'))
|
|
{
|
|
/* It is a number in hexadecimal format. */
|
|
ADDW (c);
|
|
|
|
is_hexa = 1;
|
|
exp_char = L_('p');
|
|
|
|
/* Grouping is not allowed. */
|
|
flags &= ~GROUP;
|
|
c = inchar ();
|
|
}
|
|
}
|
|
|
|
got_dot = got_e = 0;
|
|
do
|
|
{
|
|
if (ISDIGIT (c))
|
|
ADDW (c);
|
|
else if (!got_e && is_hexa && ISXDIGIT (c))
|
|
ADDW (c);
|
|
else if (got_e && wp[wpsize - 1] == exp_char
|
|
&& (c == L_('-') || c == L_('+')))
|
|
ADDW (c);
|
|
else if (wpsize > 0 && !got_e && TOLOWER (c) == exp_char)
|
|
{
|
|
ADDW (exp_char);
|
|
got_e = got_dot = 1;
|
|
}
|
|
else if (c == decimal && !got_dot)
|
|
{
|
|
ADDW (c);
|
|
got_dot = 1;
|
|
}
|
|
else if ((flags & GROUP) && c == thousands && !got_dot)
|
|
ADDW (c);
|
|
else
|
|
{
|
|
/* The last read character is not part of the number
|
|
anymore. */
|
|
ungetc (c, s);
|
|
break;
|
|
}
|
|
if (width > 0)
|
|
--width;
|
|
}
|
|
while (width != 0 && inchar () != EOF);
|
|
|
|
/* Have we read any character? If we try to read a number
|
|
in hexadecimal notation and we have read only the `0x'
|
|
prefix or no exponent this is an error. */
|
|
if (wpsize == 0 || (is_hexa && (wpsize == 2 || ! got_e)))
|
|
conv_error ();
|
|
|
|
scan_float:
|
|
/* Convert the number. */
|
|
ADDW (L_('\0'));
|
|
if (flags & LONGDBL)
|
|
{
|
|
long double d = __strtold_internal (wp, &tw, flags & GROUP);
|
|
if (!(flags & SUPPRESS) && tw != wp)
|
|
*ARG (long double *) = negative ? -d : d;
|
|
}
|
|
else if (flags & LONG)
|
|
{
|
|
double d = __strtod_internal (wp, &tw, flags & GROUP);
|
|
if (!(flags & SUPPRESS) && tw != wp)
|
|
*ARG (double *) = negative ? -d : d;
|
|
}
|
|
else
|
|
{
|
|
float d = __strtof_internal (wp, &tw, flags & GROUP);
|
|
if (!(flags & SUPPRESS) && tw != wp)
|
|
*ARG (float *) = negative ? -d : d;
|
|
}
|
|
|
|
if (tw == wp)
|
|
conv_error ();
|
|
|
|
if (!(flags & SUPPRESS))
|
|
++done;
|
|
break;
|
|
|
|
case L_('['): /* Character class. */
|
|
if (flags & LONG)
|
|
STRING_ARG (wstr, wchar_t);
|
|
else
|
|
STRING_ARG (str, char);
|
|
|
|
if (*f == L_('^'))
|
|
{
|
|
++f;
|
|
not_in = 1;
|
|
}
|
|
else
|
|
not_in = 0;
|
|
|
|
if (width < 0)
|
|
/* There is no width given so there is also no limit on the
|
|
number of characters we read. Therefore we set width to
|
|
a very high value to make the algorithm easier. */
|
|
width = INT_MAX;
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
/* Find the beginning and the end of the scanlist. We are not
|
|
creating a lookup table since it would have to be too large.
|
|
Instead we search each time through the string. This is not
|
|
a constant lookup time but who uses this feature deserves to
|
|
be punished. */
|
|
tw = (wchar_t *) f; /* Marks the beginning. */
|
|
|
|
if (*f == ']' || *f == '-')
|
|
++f;
|
|
|
|
while ((fc = *f++) != L'\0' && fc != L']');
|
|
|
|
if (fc == L'\0')
|
|
conv_error ();
|
|
wp = (wchar_t *) f - 1;
|
|
#else
|
|
/* Fill WP with byte flags indexed by character.
|
|
We will use this flag map for matching input characters. */
|
|
if (wpmax < UCHAR_MAX)
|
|
{
|
|
wpmax = UCHAR_MAX;
|
|
wp = (char *) alloca (wpmax);
|
|
}
|
|
memset (wp, '\0', UCHAR_MAX);
|
|
|
|
fc = *f;
|
|
if (fc == ']' || fc == '-')
|
|
{
|
|
/* If ] or - appears before any char in the set, it is not
|
|
the terminator or separator, but the first char in the
|
|
set. */
|
|
wp[fc] = 1;
|
|
++f;
|
|
}
|
|
|
|
tw = (char *) f;
|
|
while ((fc = *f++) != '\0' && fc != ']')
|
|
if (fc == '-' && *f != '\0' && *f != ']' && f - 2 != tw
|
|
&& (unsigned char) f[-2] <= (unsigned char) *f)
|
|
{
|
|
/* Add all characters from the one before the '-'
|
|
up to (but not including) the next format char. */
|
|
for (fc = f[-2]; fc < *f; ++fc)
|
|
wp[fc] = 1;
|
|
}
|
|
else
|
|
/* Add the character to the flag map. */
|
|
wp[fc] = 1;
|
|
|
|
if (fc == '\0')
|
|
conv_error();
|
|
#endif
|
|
|
|
if (flags & LONG)
|
|
{
|
|
size_t now = read_in;
|
|
#ifdef COMPILE_WPRINTF
|
|
do
|
|
{
|
|
wchar_t *runp;
|
|
|
|
if (inchar () == WEOF)
|
|
break;
|
|
|
|
/* Test whether it's in the scanlist. */
|
|
runp = tw;
|
|
while (runp < wp)
|
|
{
|
|
if (runp[0] == L'-' && runp[1] != '\0' && runp[1] != ']'
|
|
&& runp != tw
|
|
&& (unsigned int) runp[-1] <= (unsigned int) runp[1])
|
|
{
|
|
/* Match against all characters in between the
|
|
first and last character of the sequence. */
|
|
wchar_t wc;
|
|
|
|
for (wc = runp[-1] + 1; wc < runp[1]; ++wc)
|
|
if (wc == c)
|
|
break;
|
|
|
|
if (wc == runp[1] && !not_in)
|
|
break;
|
|
if (wc == runp[1] && not_in)
|
|
{
|
|
/* The current character is not in the
|
|
scanset. */
|
|
ungetwc (c, s);
|
|
goto out;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (*runp == runp[1] && !not_in)
|
|
break;
|
|
if (*runp != runp[1] && not_in)
|
|
{
|
|
ungetwc (c ,s);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
++runp;
|
|
}
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*wstr++ = c;
|
|
|
|
if ((flags & MALLOC)
|
|
&& wstr == (wchar_t *) *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
(2 * strsize)
|
|
* sizeof (wchar_t));
|
|
if (wstr == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
wstr = (wchar_t *)
|
|
realloc (*strptr, (strsize
|
|
+ sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the string
|
|
and stop converting, so at least we don't
|
|
skip any input. */
|
|
((wchar_t *) (*strptr))[strsize - 1] = L'\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (--width > 0);
|
|
out:
|
|
#else
|
|
char buf[MB_LEN_MAX];
|
|
size_t cnt = 0;
|
|
mbstate_t cstate;
|
|
|
|
memset (&cstate, '\0', sizeof (cstate));
|
|
|
|
do
|
|
{
|
|
again:
|
|
if (inchar () == EOF)
|
|
break;
|
|
|
|
if (wp[c] == not_in)
|
|
{
|
|
ungetc (c, s);
|
|
break;
|
|
}
|
|
|
|
/* This is easy. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
size_t n;
|
|
|
|
/* Convert it into a wide character. */
|
|
n = __mbrtowc (wstr, buf, cnt, &cstate);
|
|
|
|
if (n == (size_t) -2)
|
|
{
|
|
/* Possibly correct character, just not enough
|
|
input. */
|
|
assert (cnt < MB_CUR_MAX);
|
|
goto again;
|
|
}
|
|
|
|
if (n != cnt)
|
|
encode_error ();
|
|
|
|
++wstr;
|
|
if ((flags & MALLOC)
|
|
&& wstr == (wchar_t *) *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
(2 * strsize
|
|
* sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
wstr = (wchar_t *)
|
|
realloc (*strptr, ((strsize + 1)
|
|
* sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the
|
|
string and stop converting,
|
|
so at least we don't skip any input. */
|
|
((wchar_t *) (*strptr))[strsize - 1] = L'\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (--width > 0);
|
|
|
|
if (cnt != 0)
|
|
/* We stopped in the middle of recognizing another
|
|
character. That's a problem. */
|
|
encode_error ();
|
|
#endif
|
|
|
|
if (now == read_in)
|
|
/* We haven't succesfully read any character. */
|
|
conv_error ();
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*wstr++ = L'\0';
|
|
|
|
if ((flags & MALLOC)
|
|
&& wstr - (wchar_t *) *strptr != strsize)
|
|
{
|
|
wchar_t *cp = (wchar_t *)
|
|
realloc (*strptr, ((wstr - (wchar_t *) *strptr)
|
|
* sizeof(wchar_t)));
|
|
if (cp != NULL)
|
|
*strptr = (char *) cp;
|
|
}
|
|
|
|
++done;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
size_t now = read_in;
|
|
#ifdef COMPILE_WPRINTF
|
|
|
|
memset (&state, '\0', sizeof (state));
|
|
|
|
do
|
|
{
|
|
wchar_t *runp;
|
|
size_t n;
|
|
|
|
if (inchar () == WEOF)
|
|
break;
|
|
|
|
/* Test whether it's in the scanlist. */
|
|
runp = tw;
|
|
while (runp < wp)
|
|
{
|
|
if (runp[0] == L'-' && runp[1] != '\0' && runp[1] != ']'
|
|
&& runp != tw
|
|
&& (unsigned int) runp[-1] <= (unsigned int) runp[1])
|
|
{
|
|
/* Match against all characters in between the
|
|
first and last character of the sequence. */
|
|
wchar_t wc;
|
|
|
|
for (wc = runp[-1] + 1; wc < runp[1]; ++wc)
|
|
if (wc == c)
|
|
break;
|
|
|
|
if (wc == runp[1] && !not_in)
|
|
break;
|
|
if (wc == runp[1] && not_in)
|
|
{
|
|
/* The current character is not in the
|
|
scanset. */
|
|
ungetwc (c, s);
|
|
goto out2;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (*runp == runp[1] && !not_in)
|
|
break;
|
|
if (*runp != runp[1] && not_in)
|
|
{
|
|
ungetwc (c ,s);
|
|
goto out2;
|
|
}
|
|
}
|
|
|
|
++runp;
|
|
}
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
if ((flags & MALLOC)
|
|
&& str + MB_CUR_MAX >= *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
str = (char *) realloc (*strptr, 2 * strsize);
|
|
if (str == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
str = (char *) realloc (*strptr, strsize + 1);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the string
|
|
and stop converting, so at least we don't
|
|
skip any input. */
|
|
(*strptr)[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = str;
|
|
str += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = str;
|
|
str += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
|
|
n = wcrtomb (!(flags & SUPPRESS) ? str : NULL, c, &state);
|
|
if (n == (size_t) -1)
|
|
encode_error ();
|
|
|
|
assert (n <= MB_CUR_MAX);
|
|
str += n;
|
|
}
|
|
while (--width > 0);
|
|
out2:
|
|
#else
|
|
do
|
|
{
|
|
if (inchar () == EOF)
|
|
break;
|
|
|
|
if (wp[c] == not_in)
|
|
{
|
|
ungetc (c, s);
|
|
break;
|
|
}
|
|
|
|
/* This is easy. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*str++ = c;
|
|
if ((flags & MALLOC)
|
|
&& (char *) str == *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
str = (char *) realloc (*strptr, 2 * strsize);
|
|
if (str == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
str = (char *) realloc (*strptr, strsize + 1);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the
|
|
string and stop converting,
|
|
so at least we don't skip any input. */
|
|
((char *) (*strptr))[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (--width > 0);
|
|
#endif
|
|
|
|
if (now == read_in)
|
|
/* We haven't succesfully read any character. */
|
|
conv_error ();
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
#ifdef COMPILE_WPRINTF
|
|
/* We have to emit the code to get into the intial
|
|
state. */
|
|
char buf[MB_LEN_MAX];
|
|
size_t n = wcrtomb (buf, L'\0', &state);
|
|
if (n > 0 && (flags & MALLOC)
|
|
&& str + n >= *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
str = (char *) realloc (*strptr,
|
|
(str + n + 1) - *strptr);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the string
|
|
and stop converting, so at least we don't
|
|
skip any input. */
|
|
((char *) (*strptr))[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str = ((char *) *strptr) + strsize;
|
|
strsize = (str + n + 1) - *strptr;
|
|
}
|
|
}
|
|
|
|
str = __mempcpy (str, buf, n);
|
|
#endif
|
|
*str = '\0';
|
|
|
|
if ((flags & MALLOC) && str - *strptr != strsize)
|
|
{
|
|
char *cp = (char *) realloc (*strptr, str - *strptr);
|
|
if (cp != NULL)
|
|
*strptr = cp;
|
|
}
|
|
|
|
++done;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case L_('p'): /* Generic pointer. */
|
|
base = 16;
|
|
/* A PTR must be the same size as a `long int'. */
|
|
flags &= ~(SHORT|LONGDBL);
|
|
if (need_long)
|
|
flags |= LONG;
|
|
number_signed = 0;
|
|
read_pointer = 1;
|
|
goto number;
|
|
|
|
default:
|
|
/* If this is an unknown format character punt. */
|
|
conv_error ();
|
|
}
|
|
}
|
|
|
|
/* The last thing we saw int the format string was a white space.
|
|
Consume the last white spaces. */
|
|
if (skip_space)
|
|
{
|
|
do
|
|
c = inchar ();
|
|
while (ISSPACE (c));
|
|
ungetc (c, s);
|
|
}
|
|
|
|
/* Unlock stream. */
|
|
UNLOCK_STREAM (s);
|
|
|
|
return done;
|
|
}
|
|
|
|
#ifdef USE_IN_LIBIO
|
|
# ifdef COMPILE_WPRINTF
|
|
int
|
|
__vfwscanf (FILE *s, const wchar_t *format, va_list argptr)
|
|
{
|
|
return _IO_vfwscanf (s, format, argptr, NULL);
|
|
}
|
|
# else
|
|
int
|
|
__vfscanf (FILE *s, const char *format, va_list argptr)
|
|
{
|
|
return _IO_vfscanf (s, format, argptr, NULL);
|
|
}
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
weak_alias (__vfwscanf, vfwscanf)
|
|
#else
|
|
weak_alias (__vfscanf, vfscanf)
|
|
#endif
|