Imported from /home/lorry/working-area/delta_php2/php-5.4.13.tar.bz2.HEADphp-5.4.13master

1 files changed, 1316 insertions, 0 deletions

diff --git a/main/snprintf.c b/main/snprintf.c
new file mode 100644
index 0000000..4514bd6
--- /dev/null
+++ b/main/snprintf.c
@@ -0,0 +1,1316 @@
+/*
+  +----------------------------------------------------------------------+
+  | PHP Version 5                                                        |
+  +----------------------------------------------------------------------+
+  | Copyright (c) 1997-2013 The PHP Group                                |
+  +----------------------------------------------------------------------+
+  | This source file is subject to version 3.01 of the PHP license,      |
+  | that is bundled with this package in the file LICENSE, and is        |
+  | available through the world-wide-web at the following url:           |
+  | http://www.php.net/license/3_01.txt                                  |
+  | If you did not receive a copy of the PHP license and are unable to   |
+  | obtain it through the world-wide-web, please send a note to          |
+  | license@php.net so we can mail you a copy immediately.               |
+  +----------------------------------------------------------------------+
+  | Author:                                                              |
+  +----------------------------------------------------------------------+
+*/
+
+/* $Id$ */
+
+#define _GNU_SOURCE
+#include "php.h"
+
+#include <zend_strtod.h>
+
+#include <stddef.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <sys/types.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdlib.h>
+#include <math.h>
+
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
+
+#ifdef HAVE_LOCALE_H
+#include <locale.h>
+#define LCONV_DECIMAL_POINT (*lconv->decimal_point)
+#else
+#define LCONV_DECIMAL_POINT '.'
+#endif
+
+/*
+ * Copyright (c) 2002, 2006 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
+ */
+
+static char * __cvt(double value, int ndigit, int *decpt, int *sign, int fmode, int pad) /* {{{ */
+{
+	register char *s = NULL;
+	char *p, *rve, c;
+	size_t siz;
+
+	if (ndigit < 0) {
+		siz = -ndigit + 1;
+	} else {
+		siz = ndigit + 1;
+	}
+
+	/* __dtoa() doesn't allocate space for 0 so we do it by hand */
+	if (value == 0.0) {
+		*decpt = 1 - fmode; /* 1 for 'e', 0 for 'f' */
+		*sign = 0;
+		if ((rve = s = (char *)malloc(ndigit?siz:2)) == NULL) {
+			return(NULL);
+		}
+		*rve++ = '0';
+		*rve = '\0';
+		if (!ndigit) {
+			return(s);
+		}
+	} else {
+		p = zend_dtoa(value, fmode + 2, ndigit, decpt, sign, &rve);
+		if (*decpt == 9999) {
+			/* Infinity or Nan, convert to inf or nan like printf */
+			*decpt = 0;
+			c = *p;
+			zend_freedtoa(p);
+			return strdup((c == 'I' ? "INF" : "NAN"));
+		}
+		/* Make a local copy and adjust rve to be in terms of s */
+		if (pad && fmode) {
+			siz += *decpt;
+		}
+		if ((s = (char *)malloc(siz+1)) == NULL) {
+			zend_freedtoa(p);
+			return(NULL);
+		}
+		(void) strlcpy(s, p, siz);
+		rve = s + (rve - p);
+		zend_freedtoa(p);
+	}
+
+	/* Add trailing zeros */
+	if (pad) {
+		siz -= rve - s;
+		while (--siz) {
+			*rve++ = '0';
+		}
+		*rve = '\0';
+	}
+
+	return(s);
+}
+/* }}} */
+
+static inline char *php_ecvt(double value, int ndigit, int *decpt, int *sign) /* {{{ */
+{
+	return(__cvt(value, ndigit, decpt, sign, 0, 1));
+}
+/* }}} */
+
+static inline char *php_fcvt(double value, int ndigit, int *decpt, int *sign) /* {{{ */
+{
+    return(__cvt(value, ndigit, decpt, sign, 1, 1));
+}
+/* }}} */
+
+PHPAPI char *php_gcvt(double value, int ndigit, char dec_point, char exponent, char *buf) /* {{{ */
+{
+	char *digits, *dst, *src;
+	int i, decpt, sign;
+
+	digits = zend_dtoa(value, 2, ndigit, &decpt, &sign, NULL);
+	if (decpt == 9999) {
+		/*
+		 * Infinity or NaN, convert to inf or nan with sign.
+		 * We assume the buffer is at least ndigit long.
+		 */
+		snprintf(buf, ndigit + 1, "%s%s", (sign && *digits == 'I') ? "-" : "", *digits == 'I' ? "INF" : "NAN");
+		zend_freedtoa(digits);
+		return (buf);
+	}
+
+	dst = buf;
+	if (sign) {
+		*dst++ = '-';
+	}
+
+	if ((decpt >= 0 && decpt > ndigit) || decpt < -3) { /* use E-style */
+		/* exponential format (e.g. 1.2345e+13) */
+		if (--decpt < 0) {
+			sign = 1;
+			decpt = -decpt;
+		} else {
+			sign = 0;
+		}
+		src = digits;
+		*dst++ = *src++;
+		*dst++ = dec_point;
+		if (*src == '\0') {
+			*dst++ = '0';
+		} else {
+			do {
+				*dst++ = *src++;
+			} while (*src != '\0');
+		}
+		*dst++ = exponent;
+		if (sign) {
+			*dst++ = '-';
+		} else {
+			*dst++ = '+';
+		}
+		if (decpt < 10) {
+			*dst++ = '0' + decpt;
+			*dst = '\0';
+		} else {
+			/* XXX - optimize */
+			for (sign = decpt, i = 0; (sign /= 10) != 0; i++)
+				continue;
+			dst[i + 1] = '\0';
+			while (decpt != 0) {
+				dst[i--] = '0' + decpt % 10;
+				decpt /= 10;
+			}
+		}
+	} else if (decpt < 0) {
+		/* standard format 0. */
+		*dst++ = '0';   /* zero before decimal point */
+		*dst++ = dec_point;
+		do {
+			*dst++ = '0';
+		} while (++decpt < 0);
+		src = digits;
+		while (*src != '\0') {
+			*dst++ = *src++;
+		}
+		*dst = '\0';
+	} else {
+		/* standard format */
+		for (i = 0, src = digits; i < decpt; i++) {
+			if (*src != '\0') {
+				*dst++ = *src++;
+			} else {
+				*dst++ = '0';
+			}
+		}
+		if (*src != '\0') {
+			if (src == digits) {
+				*dst++ = '0';   /* zero before decimal point */
+			}
+			*dst++ = dec_point;
+			for (i = decpt; digits[i] != '\0'; i++) {
+                *dst++ = digits[i];
+            }
+        }
+        *dst = '\0';
+    }
+    zend_freedtoa(digits);
+    return (buf);
+}
+/* }}} */
+
+/* {{{ Apache license */
+/* ====================================================================
+ * Copyright (c) 1995-1998 The Apache Group.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the Apache Group
+ *    for use in the Apache HTTP server project (http://www.apache.org/)."
+ *
+ * 4. The names "Apache Server" and "Apache Group" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission.
+ *
+ * 5. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the Apache Group
+ *    for use in the Apache HTTP server project (http://www.apache.org/)."
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE APACHE GROUP OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Group and was originally based
+ * on public domain software written at the National Center for
+ * Supercomputing Applications, University of Illinois, Urbana-Champaign.
+ * For more information on the Apache Group and the Apache HTTP server
+ * project, please see <http://www.apache.org/>.
+ *
+ * This code is based on, and used with the permission of, the
+ * SIO stdio-replacement strx_* functions by Panos Tsirigotis
+ * <panos@alumni.cs.colorado.edu> for xinetd.
+ */
+/* }}} */
+
+#define FALSE			0
+#define TRUE			1
+#define NUL			'\0'
+#define INT_NULL		((int *)0)
+
+#define S_NULL			"(null)"
+#define S_NULL_LEN		6
+
+#define FLOAT_DIGITS		6
+#define EXPONENT_LENGTH		10
+
+
+/*
+ * Convert num to its decimal format.
+ * Return value:
+ *   - a pointer to a string containing the number (no sign)
+ *   - len contains the length of the string
+ *   - is_negative is set to TRUE or FALSE depending on the sign
+ *     of the number (always set to FALSE if is_unsigned is TRUE)
+ *
+ * The caller provides a buffer for the string: that is the buf_end argument
+ * which is a pointer to the END of the buffer + 1 (i.e. if the buffer
+ * is declared as buf[ 100 ], buf_end should be &buf[ 100 ])
+ */
+/* char * ap_php_conv_10() {{{ */
+char * ap_php_conv_10(register wide_int num, register bool_int is_unsigned,
+	   register bool_int * is_negative, char *buf_end, register int *len)
+{
+	register char *p = buf_end;
+	register u_wide_int magnitude;
+
+	if (is_unsigned) {
+		magnitude = (u_wide_int) num;
+		*is_negative = FALSE;
+	} else {
+		*is_negative = (num < 0);
+
+		/*
+		 * On a 2's complement machine, negating the most negative integer
+		 * results in a number that cannot be represented as a signed integer.
+		 * Here is what we do to obtain the number's magnitude:
+		 *      a. add 1 to the number
+		 *      b. negate it (becomes positive)
+		 *      c. convert it to unsigned
+		 *      d. add 1
+		 */
+		if (*is_negative) {
+			wide_int t = num + 1;
+			magnitude = ((u_wide_int) - t) + 1;
+		} else {
+			magnitude = (u_wide_int) num;
+		}
+	}
+
+	/*
+	 * We use a do-while loop so that we write at least 1 digit
+	 */
+	do {
+		register u_wide_int new_magnitude = magnitude / 10;
+
+		*--p = (char)(magnitude - new_magnitude * 10 + '0');
+		magnitude = new_magnitude;
+	}
+	while (magnitude);
+
+	*len = buf_end - p;
+	return (p);
+}
+/* }}} */
+
+/* If you change this value then also change bug24640.phpt.
+ * Also NDIG must be reasonable smaller than NUM_BUF_SIZE.
+ */
+#define	NDIG	320
+
+
+/*
+ * Convert a floating point number to a string formats 'f', 'e' or 'E'.
+ * The result is placed in buf, and len denotes the length of the string
+ * The sign is returned in the is_negative argument (and is not placed
+ * in buf).
+ */
+/* PHPAPI char * php_conv_fp() {{{ */
+PHPAPI char * php_conv_fp(register char format, register double num,
+		 boolean_e add_dp, int precision, char dec_point, bool_int * is_negative, char *buf, int *len)
+{
+	register char *s = buf;
+	register char *p, *p_orig;
+	int decimal_point;
+
+	if (precision >= NDIG - 1) {
+		precision = NDIG - 2;
+	}
+
+	if (format == 'F') {
+		p_orig = p = php_fcvt(num, precision, &decimal_point, is_negative);
+	} else {						/* either e or E format */
+		p_orig = p = php_ecvt(num, precision + 1, &decimal_point, is_negative);
+	}
+
+	/*
+	 * Check for Infinity and NaN
+	 */
+	if (isalpha((int)*p)) {
+		*len = strlen(p);
+		memcpy(buf, p, *len + 1);
+		*is_negative = FALSE;
+		free(p_orig);
+		return (buf);
+	}
+	if (format == 'F') {
+		if (decimal_point <= 0) {
+			if (num != 0 || precision > 0) {
+				*s++ = '0';
+				if (precision > 0) {
+					*s++ = dec_point;
+					while (decimal_point++ < 0) {
+						*s++ = '0';
+					}
+				} else if (add_dp) {
+					*s++ = dec_point;
+				}
+			}
+		} else {
+			int addz = decimal_point >= NDIG ? decimal_point - NDIG + 1 : 0;
+			decimal_point -= addz;
+			while (decimal_point-- > 0) {
+				*s++ = *p++;
+			}
+			while (addz-- > 0) {
+				*s++ = '0';
+			}
+			if (precision > 0 || add_dp) {
+				*s++ = dec_point;
+			}
+		}
+	} else {
+		*s++ = *p++;
+		if (precision > 0 || add_dp) {
+			*s++ = '.';
+		}
+	}
+
+	/*
+	 * copy the rest of p, the NUL is NOT copied
+	 */
+	while (*p) {
+		*s++ = *p++;
+	}
+
+	if (format != 'F') {
+		char temp[EXPONENT_LENGTH];		/* for exponent conversion */
+		int t_len;
+		bool_int exponent_is_negative;
+
+		*s++ = format;			/* either e or E */
+		decimal_point--;
+		if (decimal_point != 0) {
+			p = ap_php_conv_10((wide_int) decimal_point, FALSE, &exponent_is_negative, &temp[EXPONENT_LENGTH], &t_len);
+			*s++ = exponent_is_negative ? '-' : '+';
+
+			/*
+			 * Make sure the exponent has at least 2 digits
+			 */
+			while (t_len--) {
+				*s++ = *p++;
+			}
+		} else {
+			*s++ = '+';
+			*s++ = '0';
+		}
+	}
+	*len = s - buf;
+	free(p_orig);
+	return (buf);
+}
+/* }}} */
+
+/*
+ * Convert num to a base X number where X is a power of 2. nbits determines X.
+ * For example, if nbits is 3, we do base 8 conversion
+ * Return value:
+ *      a pointer to a string containing the number
+ *
+ * The caller provides a buffer for the string: that is the buf_end argument
+ * which is a pointer to the END of the buffer + 1 (i.e. if the buffer
+ * is declared as buf[ 100 ], buf_end should be &buf[ 100 ])
+ */
+char * ap_php_conv_p2(register u_wide_int num, register int nbits, char format, char *buf_end, register int *len) /* {{{ */
+{
+	register int mask = (1 << nbits) - 1;
+	register char *p = buf_end;
+	static char low_digits[] = "0123456789abcdef";
+	static char upper_digits[] = "0123456789ABCDEF";
+	register char *digits = (format == 'X') ? upper_digits : low_digits;
+
+	do {
+		*--p = digits[num & mask];
+		num >>= nbits;
+	}
+	while (num);
+
+	*len = buf_end - p;
+	return (p);
+}
+/* }}} */
+
+/*
+ * NUM_BUF_SIZE is the size of the buffer used for arithmetic conversions
+ *
+ * XXX: this is a magic number; do not decrease it
+ * Emax = 1023
+ * NDIG = 320
+ * NUM_BUF_SIZE >= strlen("-") + Emax + strlrn(".") + NDIG + strlen("E+1023") + 1;
+ */
+#define NUM_BUF_SIZE		2048
+
+
+/*
+ * Descriptor for buffer area
+ */
+struct buf_area {
+	char *buf_end;
+	char *nextb;				/* pointer to next byte to read/write   */
+};
+
+typedef struct buf_area buffy;
+
+/*
+ * The INS_CHAR macro inserts a character in the buffer and writes
+ * the buffer back to disk if necessary
+ * It uses the char pointers sp and bep:
+ *      sp points to the next available character in the buffer
+ *      bep points to the end-of-buffer+1
+ * While using this macro, note that the nextb pointer is NOT updated.
+ *
+ * NOTE: Evaluation of the c argument should not have any side-effects
+ */
+#define INS_CHAR(c, sp, bep, cc) \
+	{                            \
+		if (sp < bep)            \
+		{                        \
+			*sp++ = c;           \
+		}                        \
+		cc++;                    \
+	}
+
+#define NUM( c )			( c - '0' )
+
+#define STR_TO_DEC( str, num )		\
+    num = NUM( *str++ ) ;		\
+    while ( isdigit((int)*str ) )		\
+    {					\
+	num *= 10 ;			\
+	num += NUM( *str++ ) ;		\
+    }
+
+/*
+ * This macro does zero padding so that the precision
+ * requirement is satisfied. The padding is done by
+ * adding '0's to the left of the string that is going
+ * to be printed.
+ */
+#define FIX_PRECISION( adjust, precision, s, s_len )	\
+    if ( adjust )					\
+	while ( s_len < precision )			\
+	{						\
+	    *--s = '0' ;				\
+	    s_len++ ;					\
+	}
+
+/*
+ * Macro that does padding. The padding is done by printing
+ * the character ch.
+ */
+#define PAD( width, len, ch )	do		\
+	{					\
+	    INS_CHAR( ch, sp, bep, cc ) ;	\
+	    width-- ;				\
+	}					\
+	while ( width > len )
+
+/*
+ * Prefix the character ch to the string str
+ * Increase length
+ * Set the has_prefix flag
+ */
+#define PREFIX( str, length, ch )	 *--str = ch ; length++ ; has_prefix = YES
+
+
+/*
+ * Do format conversion placing the output in buffer
+ */
+static int format_converter(register buffy * odp, const char *fmt, va_list ap) /* {{{ */
+{
+	char *sp;
+	char *bep;
+	int cc = 0;
+	int i;
+
+	char *s = NULL;
+	int s_len, free_zcopy;
+	zval *zvp, zcopy;
+
+	int min_width = 0;
+	int precision = 0;
+	enum {
+		LEFT, RIGHT
+	} adjust;
+	char pad_char;
+	char prefix_char;
+
+	double fp_num;
+	wide_int i_num = (wide_int) 0;
+	u_wide_int ui_num;
+
+	char num_buf[NUM_BUF_SIZE];
+	char char_buf[2];			/* for printing %% and %<unknown> */
+
+#ifdef HAVE_LOCALE_H
+	struct lconv *lconv = NULL;
+#endif
+
+	/*
+	 * Flag variables
+	 */
+	length_modifier_e modifier;
+	boolean_e alternate_form;
+	boolean_e print_sign;
+	boolean_e print_blank;
+	boolean_e adjust_precision;
+	boolean_e adjust_width;
+	bool_int is_negative;
+
+	sp = odp->nextb;
+	bep = odp->buf_end;
+
+	while (*fmt) {
+		if (*fmt != '%') {
+			INS_CHAR(*fmt, sp, bep, cc);
+		} else {
+			/*
+			 * Default variable settings
+			 */
+			adjust = RIGHT;
+			alternate_form = print_sign = print_blank = NO;
+			pad_char = ' ';
+			prefix_char = NUL;
+			free_zcopy = 0;
+
+			fmt++;
+
+			/*
+			 * Try to avoid checking for flags, width or precision
+			 */
+			if (isascii((int)*fmt) && !islower((int)*fmt)) {
+				/*
+				 * Recognize flags: -, #, BLANK, +
+				 */
+				for (;; fmt++) {
+					if (*fmt == '-')
+						adjust = LEFT;
+					else if (*fmt == '+')
+						print_sign = YES;
+					else if (*fmt == '#')
+						alternate_form = YES;
+					else if (*fmt == ' ')
+						print_blank = YES;
+					else if (*fmt == '0')
+						pad_char = '0';
+					else
+						break;
+				}
+
+				/*
+				 * Check if a width was specified
+				 */
+				if (isdigit((int)*fmt)) {
+					STR_TO_DEC(fmt, min_width);
+					adjust_width = YES;
+				} else if (*fmt == '*') {
+					min_width = va_arg(ap, int);
+					fmt++;
+					adjust_width = YES;
+					if (min_width < 0) {
+						adjust = LEFT;
+						min_width = -min_width;
+					}
+				} else
+					adjust_width = NO;
+
+				/*
+				 * Check if a precision was specified
+				 */
+				if (*fmt == '.') {
+					adjust_precision = YES;
+					fmt++;
+					if (isdigit((int)*fmt)) {
+						STR_TO_DEC(fmt, precision);
+					} else if (*fmt == '*') {
+						precision = va_arg(ap, int);
+						fmt++;
+						if (precision < 0)
+							precision = 0;
+					} else
+						precision = 0;
+					
+					if (precision > FORMAT_CONV_MAX_PRECISION) {
+						precision = FORMAT_CONV_MAX_PRECISION;
+					}
+				} else
+					adjust_precision = NO;
+			} else
+				adjust_precision = adjust_width = NO;
+
+			/*
+			 * Modifier check
+			 */
+			switch (*fmt) {
+				case 'L':
+					fmt++;
+					modifier = LM_LONG_DOUBLE;
+					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') {
+						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 '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*);
+					zend_make_printable_zval(zvp, &zcopy, &free_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
+					}
+					/*
+					 * 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
+						}
+					}
+					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
+					}
+					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
+					}
+					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 && i_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) {
+						s_len = strlen(s);
+						if (adjust_precision && precision < s_len) {
+							s_len = 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
+						if (!lconv) {
+							lconv = localeconv();
+						}
+#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
+					if (!lconv) {
+						lconv = localeconv();
+					}
+#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 *)) = cc;
+					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(*s, sp, bep, cc)
+						s++;
+					s_len--;
+					min_width--;
+				}
+				PAD(min_width, s_len, pad_char);
+			}
+			/*
+			 * Print the string s.
+			 */
+			for (i = s_len; i != 0; i--) {
+				INS_CHAR(*s, sp, bep, cc);
+				s++;
+			}
+
+			if (adjust_width && adjust == LEFT && min_width > s_len)
+				PAD(min_width, s_len, pad_char);
+			if (free_zcopy) {
+				zval_dtor(&zcopy);
+			}
+		}
+skip_output:
+		fmt++;
+	}
+	odp->nextb = sp;
+	return (cc);
+}
+/* }}} */
+
+/*
+ * This is the general purpose conversion function.
+ */
+static void strx_printv(int *ccp, char *buf, size_t len, const char *format, va_list ap) /* {{{ */
+{
+	buffy od;
+	int cc;
+
+	/*
+	 * First initialize the descriptor
+	 * Notice that if no length is given, we initialize buf_end to the
+	 * highest possible address.
+	 */
+	if (len == 0) {
+		od.buf_end = (char *) ~0;
+		od.nextb   = (char *) ~0;
+	} else {
+		od.buf_end = &buf[len-1];
+		od.nextb   = buf;
+	}
+
+	/*
+	 * Do the conversion
+	 */
+	cc = format_converter(&od, format, ap);
+	if (len != 0 && od.nextb <= od.buf_end) {
+		*(od.nextb) = '\0';
+	}
+	if (ccp) {
+		*ccp = cc;
+	}
+}
+/* }}} */
+
+PHPAPI int ap_php_slprintf(char *buf, size_t len, const char *format,...) /* {{{ */
+{
+	unsigned int cc;
+	va_list ap;
+
+	va_start(ap, format);
+	strx_printv(&cc, buf, len, format, ap);
+	va_end(ap);
+	if (cc >= len) {
+		cc = len -1;
+		buf[cc] = '\0';
+	}
+	return cc;
+}
+/* }}} */
+
+PHPAPI int ap_php_vslprintf(char *buf, size_t len, const char *format, va_list ap) /* {{{ */
+{
+	unsigned int cc;
+
+	strx_printv(&cc, buf, len, format, ap);
+	if (cc >= len) {
+		cc = len -1;
+		buf[cc] = '\0';
+	}
+	return cc;
+}
+/* }}} */
+
+PHPAPI int ap_php_snprintf(char *buf, size_t len, const char *format,...) /* {{{ */
+{
+	int cc;
+	va_list ap;
+
+	va_start(ap, format);
+	strx_printv(&cc, buf, len, format, ap);
+	va_end(ap);
+	return (cc);
+}
+/* }}} */
+
+PHPAPI int ap_php_vsnprintf(char *buf, size_t len, const char *format, va_list ap) /* {{{ */
+{
+	int cc;
+
+	strx_printv(&cc, buf, len, format, ap);
+	return (cc);
+}
+/* }}} */
+
+PHPAPI int ap_php_vasprintf(char **buf, const char *format, va_list ap) /* {{{ */
+{
+	va_list ap2;
+	int cc;
+
+	va_copy(ap2, ap);
+	cc = ap_php_vsnprintf(NULL, 0, format, ap2);
+	va_end(ap2);
+
+	*buf = NULL;
+
+	if (cc >= 0) {
+		if ((*buf = malloc(++cc)) != NULL) {
+			if ((cc = ap_php_vsnprintf(*buf, cc, format, ap)) < 0) {
+				free(*buf);
+				*buf = NULL;
+			}
+		}
+	}
+
+	return cc;
+}
+/* }}} */
+
+PHPAPI int ap_php_asprintf(char **buf, const char *format, ...) /* {{{ */
+{
+	int cc;
+	va_list ap;
+
+	va_start(ap, format);
+	cc = vasprintf(buf, format, ap);
+	va_end(ap);
+	return cc;
+}
+/* }}} */
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: sw=4 ts=4 fdm=marker
+ * vim<600: sw=4 ts=4
+ */