mirror of
https://github.com/php/php-src.git
synced 2024-12-16 13:26:19 +08:00
916 lines
22 KiB
C
916 lines
22 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 7 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2017 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: Marcus Boerger <helly@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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/* This is the spprintf implementation.
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* It has emerged from apache snprintf. See original header:
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*/
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/* ====================================================================
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* Copyright (c) 1995-1998 The Apache Group. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the Apache Group
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* for use in the Apache HTTP server project (http://www.apache.org/)."
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*
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* 4. The names "Apache Server" and "Apache Group" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission.
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*
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* 5. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the Apache Group
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* for use in the Apache HTTP server project (http://www.apache.org/)."
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*
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* THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Group and was originally based
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* on public domain software written at the National Center for
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* Supercomputing Applications, University of Illinois, Urbana-Champaign.
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* For more information on the Apache Group and the Apache HTTP server
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* project, please see <http://www.apache.org/>.
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*
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* This code is based on, and used with the permission of, the
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* SIO stdio-replacement strx_* functions by Panos Tsirigotis
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* <panos@alumni.cs.colorado.edu> for xinetd.
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*/
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#define _GNU_SOURCE
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#include "php.h"
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#include <stddef.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <sys/types.h>
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#include <stdarg.h>
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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#ifdef HAVE_INTTYPES_H
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#include <inttypes.h>
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#endif
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#ifdef HAVE_LOCALE_H
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#include <locale.h>
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#ifdef ZTS
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#include "ext/standard/php_string.h"
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#define LCONV_DECIMAL_POINT (*lconv.decimal_point)
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#else
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#define LCONV_DECIMAL_POINT (*lconv->decimal_point)
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#endif
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#else
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#define LCONV_DECIMAL_POINT '.'
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#endif
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#include "snprintf.h"
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#define FALSE 0
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#define TRUE 1
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#define NUL '\0'
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#define INT_NULL ((int *)0)
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#define S_NULL "(null)"
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#define S_NULL_LEN 6
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#define FLOAT_DIGITS 6
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#define EXPONENT_LENGTH 10
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#include "zend_smart_str.h"
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#include "ext/standard/php_smart_string.h"
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|
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/* {{{ macros */
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#define INS_CHAR(xbuf, ch, is_char) do { \
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if ((is_char)) { \
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smart_string_appendc((smart_string *)(xbuf), (ch)); \
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} else { \
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smart_str_appendc((smart_str *)(xbuf), (ch)); \
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} \
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} while (0);
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|
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#define INS_STRING(xbuf, str, len, is_char) do { \
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if ((is_char)) { \
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smart_string_appendl((smart_string *)(xbuf), (str), (len)); \
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} else { \
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smart_str_appendl((smart_str *)(xbuf), (str), (len)); \
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} \
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} while (0);
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|
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#define PAD_CHAR(xbuf, ch, count, is_char) do { \
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size_t newlen; \
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if ((is_char)) { \
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smart_string_alloc(((smart_string *)(xbuf)), (count), 0); \
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memset(((smart_string *)(xbuf))->c + ((smart_string *)(xbuf))->len, (ch), (count)); \
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((smart_string *)(xbuf))->len += (count); \
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} else { \
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smart_str_alloc(((smart_str *)(xbuf)), (count), 0); \
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memset(ZSTR_VAL(((smart_str *)(xbuf))->s) + ZSTR_LEN(((smart_str *)(xbuf))->s), (ch), (count)); \
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ZSTR_LEN(((smart_str *)(xbuf))->s) += (count); \
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} \
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} while (0);
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/*
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* NUM_BUF_SIZE is the size of the buffer used for arithmetic conversions
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*
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* XXX: this is a magic number; do not decrease it
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* Emax = 1023
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* NDIG = 320
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* NUM_BUF_SIZE >= strlen("-") + Emax + strlrn(".") + NDIG + strlen("E+1023") + 1;
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*/
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#define NUM_BUF_SIZE 2048
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#define NUM(c) (c - '0')
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#define STR_TO_DEC(str, num) do { \
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num = NUM(*str++); \
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while (isdigit((int)*str)) { \
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num *= 10; \
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num += NUM(*str++); \
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if (num >= INT_MAX / 10) { \
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while (isdigit((int)*str++)); \
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break; \
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} \
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} \
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} while (0)
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|
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/*
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* This macro does zero padding so that the precision
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* requirement is satisfied. The padding is done by
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* adding '0's to the left of the string that is going
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* to be printed.
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*/
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#define FIX_PRECISION(adjust, precision, s, s_len) do { \
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if (adjust) \
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while (s_len < precision) { \
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*--s = '0'; \
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s_len++; \
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} \
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} while (0)
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|
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/* }}} */
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#if !HAVE_STRNLEN
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static size_t strnlen(const char *s, size_t maxlen) {
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char *r = memchr(s, '\0', maxlen);
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return r ? r-s : maxlen;
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}
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#endif
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|
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/*
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* Do format conversion placing the output in buffer
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*/
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static void xbuf_format_converter(void *xbuf, zend_bool is_char, const char *fmt, va_list ap) /* {{{ */
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{
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char *s = NULL;
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size_t s_len;
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int free_zcopy;
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zval *zvp, zcopy;
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int min_width = 0;
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int precision = 0;
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enum {
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LEFT, RIGHT
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} adjust;
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char pad_char;
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char prefix_char;
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double fp_num;
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wide_int i_num = (wide_int) 0;
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u_wide_int ui_num = (u_wide_int) 0;
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char num_buf[NUM_BUF_SIZE];
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char char_buf[2]; /* for printing %% and %<unknown> */
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#ifdef HAVE_LOCALE_H
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#ifdef ZTS
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struct lconv lconv;
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#else
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struct lconv *lconv = NULL;
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#endif
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#endif
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/*
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* Flag variables
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*/
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length_modifier_e modifier;
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boolean_e alternate_form;
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boolean_e print_sign;
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boolean_e print_blank;
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boolean_e adjust_precision;
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boolean_e adjust_width;
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bool_int is_negative;
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|
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while (*fmt) {
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if (*fmt != '%') {
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INS_CHAR(xbuf, *fmt, is_char);
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} else {
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/*
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* Default variable settings
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*/
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adjust = RIGHT;
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alternate_form = print_sign = print_blank = NO;
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pad_char = ' ';
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prefix_char = NUL;
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free_zcopy = 0;
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|
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fmt++;
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|
|
/*
|
|
* Try to avoid checking for flags, width or precision
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|
*/
|
|
if (isascii((int)*fmt) && !islower((int)*fmt)) {
|
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/*
|
|
* Recognize flags: -, #, BLANK, +
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*/
|
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for (;; fmt++) {
|
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if (*fmt == '-')
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adjust = LEFT;
|
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else if (*fmt == '+')
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print_sign = YES;
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else if (*fmt == '#')
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alternate_form = YES;
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else if (*fmt == ' ')
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print_blank = YES;
|
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else if (*fmt == '0')
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pad_char = '0';
|
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else
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break;
|
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}
|
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|
|
/*
|
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* Check if a width was specified
|
|
*/
|
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if (isdigit((int)*fmt)) {
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STR_TO_DEC(fmt, min_width);
|
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adjust_width = YES;
|
|
} else if (*fmt == '*') {
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min_width = va_arg(ap, int);
|
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fmt++;
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adjust_width = YES;
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if (min_width < 0) {
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adjust = LEFT;
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min_width = -min_width;
|
|
}
|
|
} else
|
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adjust_width = NO;
|
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|
|
/*
|
|
* Check if a precision was specified
|
|
*/
|
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if (*fmt == '.') {
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adjust_precision = YES;
|
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fmt++;
|
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if (isdigit((int)*fmt)) {
|
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STR_TO_DEC(fmt, precision);
|
|
} else if (*fmt == '*') {
|
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precision = va_arg(ap, int);
|
|
fmt++;
|
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if (precision < 0)
|
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precision = 0;
|
|
} else
|
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precision = 0;
|
|
|
|
if (precision > FORMAT_CONV_MAX_PRECISION) {
|
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precision = FORMAT_CONV_MAX_PRECISION;
|
|
}
|
|
} else
|
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adjust_precision = NO;
|
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} else
|
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adjust_precision = adjust_width = NO;
|
|
|
|
/*
|
|
* Modifier check
|
|
*/
|
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switch (*fmt) {
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case 'L':
|
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fmt++;
|
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modifier = LM_LONG_DOUBLE;
|
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break;
|
|
case 'I':
|
|
fmt++;
|
|
#if SIZEOF_LONG_LONG
|
|
if (*fmt == '6' && *(fmt+1) == '4') {
|
|
fmt += 2;
|
|
modifier = LM_LONG_LONG;
|
|
} else
|
|
#endif
|
|
if (*fmt == '3' && *(fmt+1) == '2') {
|
|
fmt += 2;
|
|
modifier = LM_LONG;
|
|
} else {
|
|
#ifdef _WIN64
|
|
modifier = LM_LONG_LONG;
|
|
#else
|
|
modifier = LM_LONG;
|
|
#endif
|
|
}
|
|
break;
|
|
case 'l':
|
|
fmt++;
|
|
#if SIZEOF_LONG_LONG
|
|
if (*fmt == 'l') {
|
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fmt++;
|
|
modifier = LM_LONG_LONG;
|
|
} else
|
|
#endif
|
|
modifier = LM_LONG;
|
|
break;
|
|
case 'z':
|
|
fmt++;
|
|
modifier = LM_SIZE_T;
|
|
break;
|
|
case 'j':
|
|
fmt++;
|
|
#if SIZEOF_INTMAX_T
|
|
modifier = LM_INTMAX_T;
|
|
#else
|
|
modifier = LM_SIZE_T;
|
|
#endif
|
|
break;
|
|
case 't':
|
|
fmt++;
|
|
#if SIZEOF_PTRDIFF_T
|
|
modifier = LM_PTRDIFF_T;
|
|
#else
|
|
modifier = LM_SIZE_T;
|
|
#endif
|
|
break;
|
|
case 'p': {
|
|
char __next = *(fmt+1);
|
|
if ('d' == __next || 'u' == __next || 'x' == __next || 'o' == __next) {
|
|
fmt++;
|
|
modifier = LM_PHP_INT_T;
|
|
} else {
|
|
modifier = LM_STD;
|
|
}
|
|
}
|
|
break;
|
|
case 'h':
|
|
fmt++;
|
|
if (*fmt == 'h') {
|
|
fmt++;
|
|
}
|
|
/* these are promoted to int, so no break */
|
|
default:
|
|
modifier = LM_STD;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Argument extraction and printing.
|
|
* First we determine the argument type.
|
|
* Then, we convert the argument to a string.
|
|
* On exit from the switch, s points to the string that
|
|
* must be printed, s_len has the length of the string
|
|
* The precision requirements, if any, are reflected in s_len.
|
|
*
|
|
* NOTE: pad_char may be set to '0' because of the 0 flag.
|
|
* It is reset to ' ' by non-numeric formats
|
|
*/
|
|
switch (*fmt) {
|
|
case 'Z': {
|
|
zvp = (zval*) va_arg(ap, zval*);
|
|
free_zcopy = zend_make_printable_zval(zvp, &zcopy);
|
|
if (free_zcopy) {
|
|
zvp = &zcopy;
|
|
}
|
|
s_len = Z_STRLEN_P(zvp);
|
|
s = Z_STRVAL_P(zvp);
|
|
if (adjust_precision && precision < s_len) {
|
|
s_len = precision;
|
|
}
|
|
break;
|
|
}
|
|
case 'u':
|
|
switch(modifier) {
|
|
default:
|
|
i_num = (wide_int) va_arg(ap, unsigned int);
|
|
break;
|
|
case LM_LONG_DOUBLE:
|
|
goto fmt_error;
|
|
case LM_LONG:
|
|
i_num = (wide_int) va_arg(ap, unsigned long int);
|
|
break;
|
|
case LM_SIZE_T:
|
|
i_num = (wide_int) va_arg(ap, size_t);
|
|
break;
|
|
#if SIZEOF_LONG_LONG
|
|
case LM_LONG_LONG:
|
|
i_num = (wide_int) va_arg(ap, u_wide_int);
|
|
break;
|
|
#endif
|
|
#if SIZEOF_INTMAX_T
|
|
case LM_INTMAX_T:
|
|
i_num = (wide_int) va_arg(ap, uintmax_t);
|
|
break;
|
|
#endif
|
|
#if SIZEOF_PTRDIFF_T
|
|
case LM_PTRDIFF_T:
|
|
i_num = (wide_int) va_arg(ap, ptrdiff_t);
|
|
break;
|
|
#endif
|
|
case LM_PHP_INT_T:
|
|
i_num = (wide_int) va_arg(ap, zend_ulong);
|
|
break;
|
|
}
|
|
/*
|
|
* The rest also applies to other integer formats, so fall
|
|
* into that case.
|
|
*/
|
|
case 'd':
|
|
case 'i':
|
|
/*
|
|
* Get the arg if we haven't already.
|
|
*/
|
|
if ((*fmt) != 'u') {
|
|
switch(modifier) {
|
|
default:
|
|
i_num = (wide_int) va_arg(ap, int);
|
|
break;
|
|
case LM_LONG_DOUBLE:
|
|
goto fmt_error;
|
|
case LM_LONG:
|
|
i_num = (wide_int) va_arg(ap, long int);
|
|
break;
|
|
case LM_SIZE_T:
|
|
#if SIZEOF_SSIZE_T
|
|
i_num = (wide_int) va_arg(ap, ssize_t);
|
|
#else
|
|
i_num = (wide_int) va_arg(ap, size_t);
|
|
#endif
|
|
break;
|
|
#if SIZEOF_LONG_LONG
|
|
case LM_LONG_LONG:
|
|
i_num = (wide_int) va_arg(ap, wide_int);
|
|
break;
|
|
#endif
|
|
#if SIZEOF_INTMAX_T
|
|
case LM_INTMAX_T:
|
|
i_num = (wide_int) va_arg(ap, intmax_t);
|
|
break;
|
|
#endif
|
|
#if SIZEOF_PTRDIFF_T
|
|
case LM_PTRDIFF_T:
|
|
i_num = (wide_int) va_arg(ap, ptrdiff_t);
|
|
break;
|
|
#endif
|
|
case LM_PHP_INT_T:
|
|
i_num = (wide_int) va_arg(ap, zend_long);
|
|
break;
|
|
}
|
|
}
|
|
s = ap_php_conv_10(i_num, (*fmt) == 'u', &is_negative,
|
|
&num_buf[NUM_BUF_SIZE], &s_len);
|
|
FIX_PRECISION(adjust_precision, precision, s, s_len);
|
|
|
|
if (*fmt != 'u') {
|
|
if (is_negative)
|
|
prefix_char = '-';
|
|
else if (print_sign)
|
|
prefix_char = '+';
|
|
else if (print_blank)
|
|
prefix_char = ' ';
|
|
}
|
|
break;
|
|
|
|
|
|
case 'o':
|
|
switch(modifier) {
|
|
default:
|
|
ui_num = (u_wide_int) va_arg(ap, unsigned int);
|
|
break;
|
|
case LM_LONG_DOUBLE:
|
|
goto fmt_error;
|
|
case LM_LONG:
|
|
ui_num = (u_wide_int) va_arg(ap, unsigned long int);
|
|
break;
|
|
case LM_SIZE_T:
|
|
ui_num = (u_wide_int) va_arg(ap, size_t);
|
|
break;
|
|
#if SIZEOF_LONG_LONG
|
|
case LM_LONG_LONG:
|
|
ui_num = (u_wide_int) va_arg(ap, u_wide_int);
|
|
break;
|
|
#endif
|
|
#if SIZEOF_INTMAX_T
|
|
case LM_INTMAX_T:
|
|
ui_num = (u_wide_int) va_arg(ap, uintmax_t);
|
|
break;
|
|
#endif
|
|
#if SIZEOF_PTRDIFF_T
|
|
case LM_PTRDIFF_T:
|
|
ui_num = (u_wide_int) va_arg(ap, ptrdiff_t);
|
|
break;
|
|
#endif
|
|
case LM_PHP_INT_T:
|
|
ui_num = (u_wide_int) va_arg(ap, zend_ulong);
|
|
break;
|
|
}
|
|
s = ap_php_conv_p2(ui_num, 3, *fmt,
|
|
&num_buf[NUM_BUF_SIZE], &s_len);
|
|
FIX_PRECISION(adjust_precision, precision, s, s_len);
|
|
if (alternate_form && *s != '0') {
|
|
*--s = '0';
|
|
s_len++;
|
|
}
|
|
break;
|
|
|
|
|
|
case 'x':
|
|
case 'X':
|
|
switch(modifier) {
|
|
default:
|
|
ui_num = (u_wide_int) va_arg(ap, unsigned int);
|
|
break;
|
|
case LM_LONG_DOUBLE:
|
|
goto fmt_error;
|
|
case LM_LONG:
|
|
ui_num = (u_wide_int) va_arg(ap, unsigned long int);
|
|
break;
|
|
case LM_SIZE_T:
|
|
ui_num = (u_wide_int) va_arg(ap, size_t);
|
|
break;
|
|
#if SIZEOF_LONG_LONG
|
|
case LM_LONG_LONG:
|
|
ui_num = (u_wide_int) va_arg(ap, u_wide_int);
|
|
break;
|
|
#endif
|
|
#if SIZEOF_INTMAX_T
|
|
case LM_INTMAX_T:
|
|
ui_num = (u_wide_int) va_arg(ap, uintmax_t);
|
|
break;
|
|
#endif
|
|
#if SIZEOF_PTRDIFF_T
|
|
case LM_PTRDIFF_T:
|
|
ui_num = (u_wide_int) va_arg(ap, ptrdiff_t);
|
|
break;
|
|
#endif
|
|
case LM_PHP_INT_T:
|
|
ui_num = (u_wide_int) va_arg(ap, zend_ulong);
|
|
break;
|
|
}
|
|
s = ap_php_conv_p2(ui_num, 4, *fmt,
|
|
&num_buf[NUM_BUF_SIZE], &s_len);
|
|
FIX_PRECISION(adjust_precision, precision, s, s_len);
|
|
if (alternate_form && ui_num != 0) {
|
|
*--s = *fmt; /* 'x' or 'X' */
|
|
*--s = '0';
|
|
s_len += 2;
|
|
}
|
|
break;
|
|
|
|
|
|
case 's':
|
|
case 'v':
|
|
s = va_arg(ap, char *);
|
|
if (s != NULL) {
|
|
if (!adjust_precision) {
|
|
s_len = strlen(s);
|
|
} else {
|
|
s_len = strnlen(s, precision);
|
|
}
|
|
} else {
|
|
s = S_NULL;
|
|
s_len = S_NULL_LEN;
|
|
}
|
|
pad_char = ' ';
|
|
break;
|
|
|
|
|
|
case 'f':
|
|
case 'F':
|
|
case 'e':
|
|
case 'E':
|
|
switch(modifier) {
|
|
case LM_LONG_DOUBLE:
|
|
fp_num = (double) va_arg(ap, long double);
|
|
break;
|
|
case LM_STD:
|
|
fp_num = va_arg(ap, double);
|
|
break;
|
|
default:
|
|
goto fmt_error;
|
|
}
|
|
|
|
if (zend_isnan(fp_num)) {
|
|
s = "nan";
|
|
s_len = 3;
|
|
} else if (zend_isinf(fp_num)) {
|
|
s = "inf";
|
|
s_len = 3;
|
|
} else {
|
|
#ifdef HAVE_LOCALE_H
|
|
#ifdef ZTS
|
|
localeconv_r(&lconv);
|
|
#else
|
|
if (!lconv) {
|
|
lconv = localeconv();
|
|
}
|
|
#endif
|
|
#endif
|
|
s = php_conv_fp((*fmt == 'f')?'F':*fmt, fp_num, alternate_form,
|
|
(adjust_precision == NO) ? FLOAT_DIGITS : precision,
|
|
(*fmt == 'f')?LCONV_DECIMAL_POINT:'.',
|
|
&is_negative, &num_buf[1], &s_len);
|
|
if (is_negative)
|
|
prefix_char = '-';
|
|
else if (print_sign)
|
|
prefix_char = '+';
|
|
else if (print_blank)
|
|
prefix_char = ' ';
|
|
}
|
|
break;
|
|
|
|
|
|
case 'g':
|
|
case 'k':
|
|
case 'G':
|
|
case 'H':
|
|
switch(modifier) {
|
|
case LM_LONG_DOUBLE:
|
|
fp_num = (double) va_arg(ap, long double);
|
|
break;
|
|
case LM_STD:
|
|
fp_num = va_arg(ap, double);
|
|
break;
|
|
default:
|
|
goto fmt_error;
|
|
}
|
|
|
|
if (zend_isnan(fp_num)) {
|
|
s = "NAN";
|
|
s_len = 3;
|
|
break;
|
|
} else if (zend_isinf(fp_num)) {
|
|
if (fp_num > 0) {
|
|
s = "INF";
|
|
s_len = 3;
|
|
} else {
|
|
s = "-INF";
|
|
s_len = 4;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (adjust_precision == NO)
|
|
precision = FLOAT_DIGITS;
|
|
else if (precision == 0)
|
|
precision = 1;
|
|
/*
|
|
* * We use &num_buf[ 1 ], so that we have room for the sign
|
|
*/
|
|
#ifdef HAVE_LOCALE_H
|
|
#ifdef ZTS
|
|
localeconv_r(&lconv);
|
|
#else
|
|
if (!lconv) {
|
|
lconv = localeconv();
|
|
}
|
|
#endif
|
|
#endif
|
|
s = php_gcvt(fp_num, precision, (*fmt=='H' || *fmt == 'k') ? '.' : LCONV_DECIMAL_POINT, (*fmt == 'G' || *fmt == 'H')?'E':'e', &num_buf[1]);
|
|
if (*s == '-')
|
|
prefix_char = *s++;
|
|
else if (print_sign)
|
|
prefix_char = '+';
|
|
else if (print_blank)
|
|
prefix_char = ' ';
|
|
|
|
s_len = strlen(s);
|
|
|
|
if (alternate_form && (strchr(s, '.')) == NULL)
|
|
s[s_len++] = '.';
|
|
break;
|
|
|
|
|
|
case 'c':
|
|
char_buf[0] = (char) (va_arg(ap, int));
|
|
s = &char_buf[0];
|
|
s_len = 1;
|
|
pad_char = ' ';
|
|
break;
|
|
|
|
|
|
case '%':
|
|
char_buf[0] = '%';
|
|
s = &char_buf[0];
|
|
s_len = 1;
|
|
pad_char = ' ';
|
|
break;
|
|
|
|
|
|
case 'n':
|
|
*(va_arg(ap, int *)) = is_char? (int)((smart_string *)xbuf)->len : (int)ZSTR_LEN(((smart_str *)xbuf)->s);
|
|
goto skip_output;
|
|
|
|
/*
|
|
* Always extract the argument as a "char *" pointer. We
|
|
* should be using "void *" but there are still machines
|
|
* that don't understand it.
|
|
* If the pointer size is equal to the size of an unsigned
|
|
* integer we convert the pointer to a hex number, otherwise
|
|
* we print "%p" to indicate that we don't handle "%p".
|
|
*/
|
|
case 'p':
|
|
if (sizeof(char *) <= sizeof(u_wide_int)) {
|
|
ui_num = (u_wide_int)((size_t) va_arg(ap, char *));
|
|
s = ap_php_conv_p2(ui_num, 4, 'x',
|
|
&num_buf[NUM_BUF_SIZE], &s_len);
|
|
if (ui_num != 0) {
|
|
*--s = 'x';
|
|
*--s = '0';
|
|
s_len += 2;
|
|
}
|
|
} else {
|
|
s = "%p";
|
|
s_len = 2;
|
|
}
|
|
pad_char = ' ';
|
|
break;
|
|
|
|
|
|
case NUL:
|
|
/*
|
|
* The last character of the format string was %.
|
|
* We ignore it.
|
|
*/
|
|
continue;
|
|
|
|
|
|
fmt_error:
|
|
php_error(E_ERROR, "Illegal length modifier specified '%c' in s[np]printf call", *fmt);
|
|
/*
|
|
* The default case is for unrecognized %'s.
|
|
* We print %<char> to help the user identify what
|
|
* option is not understood.
|
|
* This is also useful in case the user wants to pass
|
|
* the output of format_converter to another function
|
|
* that understands some other %<char> (like syslog).
|
|
* Note that we can't point s inside fmt because the
|
|
* unknown <char> could be preceded by width etc.
|
|
*/
|
|
default:
|
|
char_buf[0] = '%';
|
|
char_buf[1] = *fmt;
|
|
s = char_buf;
|
|
s_len = 2;
|
|
pad_char = ' ';
|
|
break;
|
|
}
|
|
|
|
if (prefix_char != NUL) {
|
|
*--s = prefix_char;
|
|
s_len++;
|
|
}
|
|
if (adjust_width && adjust == RIGHT && min_width > s_len) {
|
|
if (pad_char == '0' && prefix_char != NUL) {
|
|
INS_CHAR(xbuf, *s, is_char);
|
|
s++;
|
|
s_len--;
|
|
min_width--;
|
|
}
|
|
PAD_CHAR(xbuf, pad_char, min_width - s_len, is_char);
|
|
}
|
|
/*
|
|
* Print the string s.
|
|
*/
|
|
INS_STRING(xbuf, s, s_len, is_char);
|
|
|
|
if (adjust_width && adjust == LEFT && min_width > s_len) {
|
|
PAD_CHAR(xbuf, pad_char, min_width - s_len, is_char);
|
|
}
|
|
|
|
if (free_zcopy) {
|
|
zval_dtor(&zcopy);
|
|
}
|
|
}
|
|
skip_output:
|
|
fmt++;
|
|
}
|
|
return;
|
|
}
|
|
/* }}} */
|
|
|
|
/*
|
|
* This is the general purpose conversion function.
|
|
*/
|
|
PHPAPI size_t vspprintf(char **pbuf, size_t max_len, const char *format, va_list ap) /* {{{ */
|
|
{
|
|
smart_string buf = {0};
|
|
|
|
/* since there are places where (v)spprintf called without checking for null,
|
|
a bit of defensive coding here */
|
|
if(!pbuf) {
|
|
return 0;
|
|
}
|
|
xbuf_format_converter(&buf, 1, format, ap);
|
|
|
|
if (max_len && buf.len > max_len) {
|
|
buf.len = max_len;
|
|
}
|
|
|
|
smart_string_0(&buf);
|
|
|
|
if (buf.c) {
|
|
*pbuf = buf.c;
|
|
return buf.len;
|
|
} else {
|
|
*pbuf = estrndup("", 0);
|
|
return 0;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
PHPAPI size_t spprintf(char **pbuf, size_t max_len, const char *format, ...) /* {{{ */
|
|
{
|
|
size_t cc;
|
|
va_list ap;
|
|
|
|
va_start(ap, format);
|
|
cc = vspprintf(pbuf, max_len, format, ap);
|
|
va_end(ap);
|
|
return (cc);
|
|
}
|
|
/* }}} */
|
|
|
|
PHPAPI zend_string *vstrpprintf(size_t max_len, const char *format, va_list ap) /* {{{ */
|
|
{
|
|
smart_str buf = {0};
|
|
|
|
xbuf_format_converter(&buf, 0, format, ap);
|
|
|
|
if (!buf.s) {
|
|
return ZSTR_EMPTY_ALLOC();
|
|
}
|
|
|
|
if (max_len && ZSTR_LEN(buf.s) > max_len) {
|
|
ZSTR_LEN(buf.s) = max_len;
|
|
}
|
|
|
|
smart_str_0(&buf);
|
|
return buf.s;
|
|
}
|
|
/* }}} */
|
|
|
|
PHPAPI zend_string *strpprintf(size_t max_len, const char *format, ...) /* {{{ */
|
|
{
|
|
va_list ap;
|
|
zend_string *str;
|
|
|
|
va_start(ap, format);
|
|
str = vstrpprintf(max_len, format, ap);
|
|
va_end(ap);
|
|
return str;
|
|
}
|
|
/* }}} */
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* End:
|
|
* vim600: sw=4 ts=4 fdm=marker
|
|
* vim<600: sw=4 ts=4
|
|
*/
|