1161 lines
29 KiB
C
1161 lines
29 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1999 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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*
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* Purpose:
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* A merge of Bjorn Reese's format() function and Daniel's dsprintf()
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* 1.0. A full blooded printf() clone with full support for <num>$
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* everywhere (parameters, widths and precisions) including variabled
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* sized parameters (like doubles, long longs, long doubles and even
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* void * in 64-bit architectures).
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*
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* Current restrictions:
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* - Max 128 parameters
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* - No 'long double' support.
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*
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* If you ever want truly portable and good *printf() clones, the project that
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* took on from here is named 'Trio' and you find more details on the trio web
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* page at https://daniel.haxx.se/projects/trio/
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*/
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#include "curl_setup.h"
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#include <curl/mprintf.h>
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#include "curl_memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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#ifndef SIZEOF_LONG_DOUBLE
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#define SIZEOF_LONG_DOUBLE 0
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#endif
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/*
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* If SIZEOF_SIZE_T has not been defined, default to the size of long.
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*/
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#ifndef SIZEOF_SIZE_T
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# define SIZEOF_SIZE_T CURL_SIZEOF_LONG
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#endif
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#ifdef HAVE_LONGLONG
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# define LONG_LONG_TYPE long long
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# define HAVE_LONG_LONG_TYPE
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#else
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# if defined(_MSC_VER) && (_MSC_VER >= 900) && (_INTEGRAL_MAX_BITS >= 64)
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# define LONG_LONG_TYPE __int64
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# define HAVE_LONG_LONG_TYPE
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# else
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# undef LONG_LONG_TYPE
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# undef HAVE_LONG_LONG_TYPE
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# endif
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#endif
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/*
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* Non-ANSI integer extensions
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*/
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#if (defined(__BORLANDC__) && (__BORLANDC__ >= 0x520)) || \
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(defined(__WATCOMC__) && defined(__386__)) || \
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(defined(__POCC__) && defined(_MSC_VER)) || \
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(defined(_WIN32_WCE)) || \
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(defined(__MINGW32__)) || \
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(defined(_MSC_VER) && (_MSC_VER >= 900) && (_INTEGRAL_MAX_BITS >= 64))
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# define MP_HAVE_INT_EXTENSIONS
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#endif
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/*
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* Max integer data types that mprintf.c is capable
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*/
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#ifdef HAVE_LONG_LONG_TYPE
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# define mp_intmax_t LONG_LONG_TYPE
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# define mp_uintmax_t unsigned LONG_LONG_TYPE
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#else
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# define mp_intmax_t long
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# define mp_uintmax_t unsigned long
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#endif
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#define BUFFSIZE 256 /* buffer for long-to-str and float-to-str calcs */
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#define MAX_PARAMETERS 128 /* lame static limit */
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#ifdef __AMIGA__
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# undef FORMAT_INT
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#endif
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/* Lower-case digits. */
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static const char lower_digits[] = "0123456789abcdefghijklmnopqrstuvwxyz";
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/* Upper-case digits. */
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static const char upper_digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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#define OUTCHAR(x) \
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do{ \
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if(stream((unsigned char)(x), (FILE *)data) != -1) \
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done++; \
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else \
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return done; /* return immediately on failure */ \
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} WHILE_FALSE
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/* Data type to read from the arglist */
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typedef enum {
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FORMAT_UNKNOWN = 0,
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FORMAT_STRING,
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FORMAT_PTR,
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FORMAT_INT,
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FORMAT_INTPTR,
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FORMAT_LONG,
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FORMAT_LONGLONG,
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FORMAT_DOUBLE,
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FORMAT_LONGDOUBLE,
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FORMAT_WIDTH /* For internal use */
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} FormatType;
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/* conversion and display flags */
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enum {
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FLAGS_NEW = 0,
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FLAGS_SPACE = 1<<0,
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FLAGS_SHOWSIGN = 1<<1,
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FLAGS_LEFT = 1<<2,
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FLAGS_ALT = 1<<3,
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FLAGS_SHORT = 1<<4,
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FLAGS_LONG = 1<<5,
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FLAGS_LONGLONG = 1<<6,
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FLAGS_LONGDOUBLE = 1<<7,
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FLAGS_PAD_NIL = 1<<8,
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FLAGS_UNSIGNED = 1<<9,
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FLAGS_OCTAL = 1<<10,
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FLAGS_HEX = 1<<11,
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FLAGS_UPPER = 1<<12,
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FLAGS_WIDTH = 1<<13, /* '*' or '*<num>$' used */
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FLAGS_WIDTHPARAM = 1<<14, /* width PARAMETER was specified */
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FLAGS_PREC = 1<<15, /* precision was specified */
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FLAGS_PRECPARAM = 1<<16, /* precision PARAMETER was specified */
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FLAGS_CHAR = 1<<17, /* %c story */
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FLAGS_FLOATE = 1<<18, /* %e or %E */
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FLAGS_FLOATG = 1<<19 /* %g or %G */
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};
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typedef struct {
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FormatType type;
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int flags;
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long width; /* width OR width parameter number */
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long precision; /* precision OR precision parameter number */
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union {
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char *str;
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void *ptr;
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union {
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mp_intmax_t as_signed;
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mp_uintmax_t as_unsigned;
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} num;
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double dnum;
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} data;
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} va_stack_t;
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struct nsprintf {
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char *buffer;
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size_t length;
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size_t max;
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};
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struct asprintf {
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char *buffer; /* allocated buffer */
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size_t len; /* length of string */
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size_t alloc; /* length of alloc */
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int fail; /* (!= 0) if an alloc has failed and thus
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the output is not the complete data */
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};
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static long dprintf_DollarString(char *input, char **end)
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{
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int number=0;
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while(ISDIGIT(*input)) {
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number *= 10;
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number += *input-'0';
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input++;
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}
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if(number && ('$'==*input++)) {
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*end = input;
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return number;
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}
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return 0;
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}
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static bool dprintf_IsQualifierNoDollar(const char *fmt)
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{
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#if defined(MP_HAVE_INT_EXTENSIONS)
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if(!strncmp(fmt, "I32", 3) || !strncmp(fmt, "I64", 3)) {
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return TRUE;
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}
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#endif
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switch(*fmt) {
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case '-': case '+': case ' ': case '#': case '.':
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case '0': case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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case 'h': case 'l': case 'L': case 'z': case 'q':
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case '*': case 'O':
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#if defined(MP_HAVE_INT_EXTENSIONS)
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case 'I':
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#endif
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return TRUE;
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default:
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return FALSE;
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}
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}
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/******************************************************************
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*
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* Pass 1:
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* Create an index with the type of each parameter entry and its
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* value (may vary in size)
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*
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******************************************************************/
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static long dprintf_Pass1(const char *format, va_stack_t *vto, char **endpos,
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va_list arglist)
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{
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char *fmt = (char *)format;
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int param_num = 0;
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long this_param;
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long width;
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long precision;
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int flags;
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long max_param=0;
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long i;
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while(*fmt) {
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if(*fmt++ == '%') {
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if(*fmt == '%') {
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fmt++;
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continue; /* while */
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}
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flags = FLAGS_NEW;
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/* Handle the positional case (N$) */
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param_num++;
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this_param = dprintf_DollarString(fmt, &fmt);
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if(0 == this_param)
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/* we got no positional, get the next counter */
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this_param = param_num;
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if(this_param > max_param)
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max_param = this_param;
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/*
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* The parameter with number 'i' should be used. Next, we need
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* to get SIZE and TYPE of the parameter. Add the information
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* to our array.
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*/
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width = 0;
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precision = 0;
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/* Handle the flags */
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while(dprintf_IsQualifierNoDollar(fmt)) {
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#if defined(MP_HAVE_INT_EXTENSIONS)
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if(!strncmp(fmt, "I32", 3)) {
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flags |= FLAGS_LONG;
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fmt += 3;
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}
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else if(!strncmp(fmt, "I64", 3)) {
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flags |= FLAGS_LONGLONG;
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fmt += 3;
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}
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else
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#endif
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switch(*fmt++) {
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case ' ':
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flags |= FLAGS_SPACE;
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break;
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case '+':
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flags |= FLAGS_SHOWSIGN;
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break;
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case '-':
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flags |= FLAGS_LEFT;
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flags &= ~FLAGS_PAD_NIL;
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break;
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case '#':
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flags |= FLAGS_ALT;
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break;
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case '.':
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flags |= FLAGS_PREC;
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if('*' == *fmt) {
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/* The precision is picked from a specified parameter */
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flags |= FLAGS_PRECPARAM;
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fmt++;
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param_num++;
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i = dprintf_DollarString(fmt, &fmt);
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if(i)
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precision = i;
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else
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precision = param_num;
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if(precision > max_param)
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max_param = precision;
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}
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else {
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flags |= FLAGS_PREC;
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precision = strtol(fmt, &fmt, 10);
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}
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break;
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case 'h':
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flags |= FLAGS_SHORT;
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break;
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#if defined(MP_HAVE_INT_EXTENSIONS)
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case 'I':
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#if (CURL_SIZEOF_CURL_OFF_T > CURL_SIZEOF_LONG)
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flags |= FLAGS_LONGLONG;
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#else
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flags |= FLAGS_LONG;
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#endif
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break;
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#endif
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case 'l':
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if(flags & FLAGS_LONG)
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flags |= FLAGS_LONGLONG;
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else
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flags |= FLAGS_LONG;
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break;
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case 'L':
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flags |= FLAGS_LONGDOUBLE;
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break;
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case 'q':
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flags |= FLAGS_LONGLONG;
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break;
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case 'z':
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/* the code below generates a warning if -Wunreachable-code is
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used */
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#if (SIZEOF_SIZE_T > CURL_SIZEOF_LONG)
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flags |= FLAGS_LONGLONG;
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#else
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flags |= FLAGS_LONG;
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#endif
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break;
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case 'O':
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#if (CURL_SIZEOF_CURL_OFF_T > CURL_SIZEOF_LONG)
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flags |= FLAGS_LONGLONG;
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#else
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flags |= FLAGS_LONG;
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#endif
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break;
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case '0':
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if(!(flags & FLAGS_LEFT))
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flags |= FLAGS_PAD_NIL;
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/* FALLTHROUGH */
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case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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flags |= FLAGS_WIDTH;
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width = strtol(fmt-1, &fmt, 10);
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break;
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case '*': /* Special case */
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flags |= FLAGS_WIDTHPARAM;
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param_num++;
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i = dprintf_DollarString(fmt, &fmt);
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if(i)
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width = i;
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else
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width = param_num;
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if(width > max_param)
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max_param=width;
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break;
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default:
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break;
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}
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} /* switch */
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/* Handle the specifier */
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i = this_param - 1;
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switch (*fmt) {
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case 'S':
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flags |= FLAGS_ALT;
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/* FALLTHROUGH */
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case 's':
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vto[i].type = FORMAT_STRING;
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break;
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case 'n':
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vto[i].type = FORMAT_INTPTR;
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break;
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case 'p':
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vto[i].type = FORMAT_PTR;
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break;
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case 'd': case 'i':
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vto[i].type = FORMAT_INT;
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break;
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case 'u':
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vto[i].type = FORMAT_INT;
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flags |= FLAGS_UNSIGNED;
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break;
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case 'o':
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vto[i].type = FORMAT_INT;
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flags |= FLAGS_OCTAL;
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break;
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case 'x':
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vto[i].type = FORMAT_INT;
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flags |= FLAGS_HEX|FLAGS_UNSIGNED;
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break;
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case 'X':
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vto[i].type = FORMAT_INT;
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flags |= FLAGS_HEX|FLAGS_UPPER|FLAGS_UNSIGNED;
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break;
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case 'c':
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vto[i].type = FORMAT_INT;
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flags |= FLAGS_CHAR;
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break;
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case 'f':
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vto[i].type = FORMAT_DOUBLE;
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break;
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case 'e':
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vto[i].type = FORMAT_DOUBLE;
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flags |= FLAGS_FLOATE;
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break;
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case 'E':
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vto[i].type = FORMAT_DOUBLE;
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flags |= FLAGS_FLOATE|FLAGS_UPPER;
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break;
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case 'g':
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vto[i].type = FORMAT_DOUBLE;
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flags |= FLAGS_FLOATG;
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break;
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case 'G':
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vto[i].type = FORMAT_DOUBLE;
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flags |= FLAGS_FLOATG|FLAGS_UPPER;
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break;
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default:
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vto[i].type = FORMAT_UNKNOWN;
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break;
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} /* switch */
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vto[i].flags = flags;
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vto[i].width = width;
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vto[i].precision = precision;
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if(flags & FLAGS_WIDTHPARAM) {
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/* we have the width specified from a parameter, so we make that
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parameter's info setup properly */
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long k = width - 1;
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vto[i].width = k;
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vto[k].type = FORMAT_WIDTH;
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vto[k].flags = FLAGS_NEW;
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/* can't use width or precision of width! */
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vto[k].width = 0;
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vto[k].precision = 0;
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}
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if(flags & FLAGS_PRECPARAM) {
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/* we have the precision specified from a parameter, so we make that
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parameter's info setup properly */
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long k = precision - 1;
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vto[i].precision = k;
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vto[k].type = FORMAT_WIDTH;
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vto[k].flags = FLAGS_NEW;
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/* can't use width or precision of width! */
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vto[k].width = 0;
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vto[k].precision = 0;
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}
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*endpos++ = fmt + 1; /* end of this sequence */
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}
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}
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|
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/* Read the arg list parameters into our data list */
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for(i=0; i<max_param; i++) {
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/* Width/precision arguments must be read before the main argument
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they are attached to */
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if(vto[i].flags & FLAGS_WIDTHPARAM) {
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vto[vto[i].width].data.num.as_signed =
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(mp_intmax_t)va_arg(arglist, int);
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}
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if(vto[i].flags & FLAGS_PRECPARAM) {
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vto[vto[i].precision].data.num.as_signed =
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(mp_intmax_t)va_arg(arglist, int);
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}
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switch (vto[i].type) {
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case FORMAT_STRING:
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vto[i].data.str = va_arg(arglist, char *);
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break;
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case FORMAT_INTPTR:
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case FORMAT_UNKNOWN:
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case FORMAT_PTR:
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vto[i].data.ptr = va_arg(arglist, void *);
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break;
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case FORMAT_INT:
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#ifdef HAVE_LONG_LONG_TYPE
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if((vto[i].flags & FLAGS_LONGLONG) && (vto[i].flags & FLAGS_UNSIGNED))
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vto[i].data.num.as_unsigned =
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(mp_uintmax_t)va_arg(arglist, mp_uintmax_t);
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else if(vto[i].flags & FLAGS_LONGLONG)
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vto[i].data.num.as_signed =
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(mp_intmax_t)va_arg(arglist, mp_intmax_t);
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else
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#endif
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{
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if((vto[i].flags & FLAGS_LONG) && (vto[i].flags & FLAGS_UNSIGNED))
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vto[i].data.num.as_unsigned =
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(mp_uintmax_t)va_arg(arglist, unsigned long);
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else if(vto[i].flags & FLAGS_LONG)
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vto[i].data.num.as_signed =
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(mp_intmax_t)va_arg(arglist, long);
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else if(vto[i].flags & FLAGS_UNSIGNED)
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vto[i].data.num.as_unsigned =
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(mp_uintmax_t)va_arg(arglist, unsigned int);
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else
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vto[i].data.num.as_signed =
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(mp_intmax_t)va_arg(arglist, int);
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}
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break;
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case FORMAT_DOUBLE:
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vto[i].data.dnum = va_arg(arglist, double);
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break;
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case FORMAT_WIDTH:
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/* Argument has been read. Silently convert it into an integer
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* for later use
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*/
|
|
vto[i].type = FORMAT_INT;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return max_param;
|
|
|
|
}
|
|
|
|
static int dprintf_formatf(
|
|
void *data, /* untouched by format(), just sent to the stream() function in
|
|
the second argument */
|
|
/* function pointer called for each output character */
|
|
int (*stream)(int, FILE *),
|
|
const char *format, /* %-formatted string */
|
|
va_list ap_save) /* list of parameters */
|
|
{
|
|
/* Base-36 digits for numbers. */
|
|
const char *digits = lower_digits;
|
|
|
|
/* Pointer into the format string. */
|
|
char *f;
|
|
|
|
/* Number of characters written. */
|
|
int done = 0;
|
|
|
|
long param; /* current parameter to read */
|
|
long param_num=0; /* parameter counter */
|
|
|
|
va_stack_t vto[MAX_PARAMETERS];
|
|
char *endpos[MAX_PARAMETERS];
|
|
char **end;
|
|
|
|
char work[BUFFSIZE];
|
|
|
|
va_stack_t *p;
|
|
|
|
/* 'workend' points to the final buffer byte position, but with an extra
|
|
byte as margin to avoid the (false?) warning Coverity gives us
|
|
otherwise */
|
|
char *workend = &work[sizeof(work) - 2];
|
|
|
|
/* Do the actual %-code parsing */
|
|
dprintf_Pass1(format, vto, endpos, ap_save);
|
|
|
|
end = &endpos[0]; /* the initial end-position from the list dprintf_Pass1()
|
|
created for us */
|
|
|
|
f = (char *)format;
|
|
while(*f != '\0') {
|
|
/* Format spec modifiers. */
|
|
int is_alt;
|
|
|
|
/* Width of a field. */
|
|
long width;
|
|
|
|
/* Precision of a field. */
|
|
long prec;
|
|
|
|
/* Decimal integer is negative. */
|
|
int is_neg;
|
|
|
|
/* Base of a number to be written. */
|
|
long base;
|
|
|
|
/* Integral values to be written. */
|
|
mp_uintmax_t num;
|
|
|
|
/* Used to convert negative in positive. */
|
|
mp_intmax_t signed_num;
|
|
|
|
char *w;
|
|
|
|
if(*f != '%') {
|
|
/* This isn't a format spec, so write everything out until the next one
|
|
OR end of string is reached. */
|
|
do {
|
|
OUTCHAR(*f);
|
|
} while(*++f && ('%' != *f));
|
|
continue;
|
|
}
|
|
|
|
++f;
|
|
|
|
/* Check for "%%". Note that although the ANSI standard lists
|
|
'%' as a conversion specifier, it says "The complete format
|
|
specification shall be `%%'," so we can avoid all the width
|
|
and precision processing. */
|
|
if(*f == '%') {
|
|
++f;
|
|
OUTCHAR('%');
|
|
continue;
|
|
}
|
|
|
|
/* If this is a positional parameter, the position must follow immediately
|
|
after the %, thus create a %<num>$ sequence */
|
|
param=dprintf_DollarString(f, &f);
|
|
|
|
if(!param)
|
|
param = param_num;
|
|
else
|
|
--param;
|
|
|
|
param_num++; /* increase this always to allow "%2$s %1$s %s" and then the
|
|
third %s will pick the 3rd argument */
|
|
|
|
p = &vto[param];
|
|
|
|
/* pick up the specified width */
|
|
if(p->flags & FLAGS_WIDTHPARAM) {
|
|
width = (long)vto[p->width].data.num.as_signed;
|
|
param_num++; /* since the width is extracted from a parameter, we
|
|
must skip that to get to the next one properly */
|
|
if(width < 0) {
|
|
/* "A negative field width is taken as a '-' flag followed by a
|
|
positive field width." */
|
|
width = -width;
|
|
p->flags |= FLAGS_LEFT;
|
|
p->flags &= ~FLAGS_PAD_NIL;
|
|
}
|
|
}
|
|
else
|
|
width = p->width;
|
|
|
|
/* pick up the specified precision */
|
|
if(p->flags & FLAGS_PRECPARAM) {
|
|
prec = (long)vto[p->precision].data.num.as_signed;
|
|
param_num++; /* since the precision is extracted from a parameter, we
|
|
must skip that to get to the next one properly */
|
|
if(prec < 0)
|
|
/* "A negative precision is taken as if the precision were
|
|
omitted." */
|
|
prec = -1;
|
|
}
|
|
else if(p->flags & FLAGS_PREC)
|
|
prec = p->precision;
|
|
else
|
|
prec = -1;
|
|
|
|
is_alt = (p->flags & FLAGS_ALT) ? 1 : 0;
|
|
|
|
switch (p->type) {
|
|
case FORMAT_INT:
|
|
num = p->data.num.as_unsigned;
|
|
if(p->flags & FLAGS_CHAR) {
|
|
/* Character. */
|
|
if(!(p->flags & FLAGS_LEFT))
|
|
while(--width > 0)
|
|
OUTCHAR(' ');
|
|
OUTCHAR((char) num);
|
|
if(p->flags & FLAGS_LEFT)
|
|
while(--width > 0)
|
|
OUTCHAR(' ');
|
|
break;
|
|
}
|
|
if(p->flags & FLAGS_OCTAL) {
|
|
/* Octal unsigned integer. */
|
|
base = 8;
|
|
goto unsigned_number;
|
|
}
|
|
else if(p->flags & FLAGS_HEX) {
|
|
/* Hexadecimal unsigned integer. */
|
|
|
|
digits = (p->flags & FLAGS_UPPER)? upper_digits : lower_digits;
|
|
base = 16;
|
|
goto unsigned_number;
|
|
}
|
|
else if(p->flags & FLAGS_UNSIGNED) {
|
|
/* Decimal unsigned integer. */
|
|
base = 10;
|
|
goto unsigned_number;
|
|
}
|
|
|
|
/* Decimal integer. */
|
|
base = 10;
|
|
|
|
is_neg = (p->data.num.as_signed < (mp_intmax_t)0) ? 1 : 0;
|
|
if(is_neg) {
|
|
/* signed_num might fail to hold absolute negative minimum by 1 */
|
|
signed_num = p->data.num.as_signed + (mp_intmax_t)1;
|
|
signed_num = -signed_num;
|
|
num = (mp_uintmax_t)signed_num;
|
|
num += (mp_uintmax_t)1;
|
|
}
|
|
|
|
goto number;
|
|
|
|
unsigned_number:
|
|
/* Unsigned number of base BASE. */
|
|
is_neg = 0;
|
|
|
|
number:
|
|
/* Number of base BASE. */
|
|
|
|
/* Supply a default precision if none was given. */
|
|
if(prec == -1)
|
|
prec = 1;
|
|
|
|
/* Put the number in WORK. */
|
|
w = workend;
|
|
while(num > 0) {
|
|
*w-- = digits[num % base];
|
|
num /= base;
|
|
}
|
|
width -= (long)(workend - w);
|
|
prec -= (long)(workend - w);
|
|
|
|
if(is_alt && base == 8 && prec <= 0) {
|
|
*w-- = '0';
|
|
--width;
|
|
}
|
|
|
|
if(prec > 0) {
|
|
width -= prec;
|
|
while(prec-- > 0)
|
|
*w-- = '0';
|
|
}
|
|
|
|
if(is_alt && base == 16)
|
|
width -= 2;
|
|
|
|
if(is_neg || (p->flags & FLAGS_SHOWSIGN) || (p->flags & FLAGS_SPACE))
|
|
--width;
|
|
|
|
if(!(p->flags & FLAGS_LEFT) && !(p->flags & FLAGS_PAD_NIL))
|
|
while(width-- > 0)
|
|
OUTCHAR(' ');
|
|
|
|
if(is_neg)
|
|
OUTCHAR('-');
|
|
else if(p->flags & FLAGS_SHOWSIGN)
|
|
OUTCHAR('+');
|
|
else if(p->flags & FLAGS_SPACE)
|
|
OUTCHAR(' ');
|
|
|
|
if(is_alt && base == 16) {
|
|
OUTCHAR('0');
|
|
if(p->flags & FLAGS_UPPER)
|
|
OUTCHAR('X');
|
|
else
|
|
OUTCHAR('x');
|
|
}
|
|
|
|
if(!(p->flags & FLAGS_LEFT) && (p->flags & FLAGS_PAD_NIL))
|
|
while(width-- > 0)
|
|
OUTCHAR('0');
|
|
|
|
/* Write the number. */
|
|
while(++w <= workend) {
|
|
OUTCHAR(*w);
|
|
}
|
|
|
|
if(p->flags & FLAGS_LEFT)
|
|
while(width-- > 0)
|
|
OUTCHAR(' ');
|
|
break;
|
|
|
|
case FORMAT_STRING:
|
|
/* String. */
|
|
{
|
|
static const char null[] = "(nil)";
|
|
const char *str;
|
|
size_t len;
|
|
|
|
str = (char *) p->data.str;
|
|
if(str == NULL) {
|
|
/* Write null[] if there's space. */
|
|
if(prec == -1 || prec >= (long) sizeof(null) - 1) {
|
|
str = null;
|
|
len = sizeof(null) - 1;
|
|
/* Disable quotes around (nil) */
|
|
p->flags &= (~FLAGS_ALT);
|
|
}
|
|
else {
|
|
str = "";
|
|
len = 0;
|
|
}
|
|
}
|
|
else if(prec != -1)
|
|
len = (size_t)prec;
|
|
else
|
|
len = strlen(str);
|
|
|
|
width -= (len > LONG_MAX) ? LONG_MAX : (long)len;
|
|
|
|
if(p->flags & FLAGS_ALT)
|
|
OUTCHAR('"');
|
|
|
|
if(!(p->flags&FLAGS_LEFT))
|
|
while(width-- > 0)
|
|
OUTCHAR(' ');
|
|
|
|
while((len-- > 0) && *str)
|
|
OUTCHAR(*str++);
|
|
if(p->flags&FLAGS_LEFT)
|
|
while(width-- > 0)
|
|
OUTCHAR(' ');
|
|
|
|
if(p->flags & FLAGS_ALT)
|
|
OUTCHAR('"');
|
|
}
|
|
break;
|
|
|
|
case FORMAT_PTR:
|
|
/* Generic pointer. */
|
|
{
|
|
void *ptr;
|
|
ptr = (void *) p->data.ptr;
|
|
if(ptr != NULL) {
|
|
/* If the pointer is not NULL, write it as a %#x spec. */
|
|
base = 16;
|
|
digits = (p->flags & FLAGS_UPPER)? upper_digits : lower_digits;
|
|
is_alt = 1;
|
|
num = (size_t) ptr;
|
|
is_neg = 0;
|
|
goto number;
|
|
}
|
|
else {
|
|
/* Write "(nil)" for a nil pointer. */
|
|
static const char strnil[] = "(nil)";
|
|
const char *point;
|
|
|
|
width -= (long)(sizeof(strnil) - 1);
|
|
if(p->flags & FLAGS_LEFT)
|
|
while(width-- > 0)
|
|
OUTCHAR(' ');
|
|
for(point = strnil; *point != '\0'; ++point)
|
|
OUTCHAR(*point);
|
|
if(! (p->flags & FLAGS_LEFT))
|
|
while(width-- > 0)
|
|
OUTCHAR(' ');
|
|
}
|
|
}
|
|
break;
|
|
|
|
case FORMAT_DOUBLE:
|
|
{
|
|
char formatbuf[32]="%";
|
|
char *fptr = &formatbuf[1];
|
|
size_t left = sizeof(formatbuf)-strlen(formatbuf);
|
|
int len;
|
|
|
|
width = -1;
|
|
if(p->flags & FLAGS_WIDTH)
|
|
width = p->width;
|
|
else if(p->flags & FLAGS_WIDTHPARAM)
|
|
width = (long)vto[p->width].data.num.as_signed;
|
|
|
|
prec = -1;
|
|
if(p->flags & FLAGS_PREC)
|
|
prec = p->precision;
|
|
else if(p->flags & FLAGS_PRECPARAM)
|
|
prec = (long)vto[p->precision].data.num.as_signed;
|
|
|
|
if(p->flags & FLAGS_LEFT)
|
|
*fptr++ = '-';
|
|
if(p->flags & FLAGS_SHOWSIGN)
|
|
*fptr++ = '+';
|
|
if(p->flags & FLAGS_SPACE)
|
|
*fptr++ = ' ';
|
|
if(p->flags & FLAGS_ALT)
|
|
*fptr++ = '#';
|
|
|
|
*fptr = 0;
|
|
|
|
if(width >= 0) {
|
|
/* RECURSIVE USAGE */
|
|
len = curl_msnprintf(fptr, left, "%ld", width);
|
|
fptr += len;
|
|
left -= len;
|
|
}
|
|
if(prec >= 0) {
|
|
/* RECURSIVE USAGE */
|
|
len = curl_msnprintf(fptr, left, ".%ld", prec);
|
|
fptr += len;
|
|
}
|
|
if(p->flags & FLAGS_LONG)
|
|
*fptr++ = 'l';
|
|
|
|
if(p->flags & FLAGS_FLOATE)
|
|
*fptr++ = (char)((p->flags & FLAGS_UPPER) ? 'E':'e');
|
|
else if(p->flags & FLAGS_FLOATG)
|
|
*fptr++ = (char)((p->flags & FLAGS_UPPER) ? 'G' : 'g');
|
|
else
|
|
*fptr++ = 'f';
|
|
|
|
*fptr = 0; /* and a final zero termination */
|
|
|
|
/* NOTE NOTE NOTE!! Not all sprintf implementations return number of
|
|
output characters */
|
|
(sprintf)(work, formatbuf, p->data.dnum);
|
|
|
|
for(fptr=work; *fptr; fptr++)
|
|
OUTCHAR(*fptr);
|
|
}
|
|
break;
|
|
|
|
case FORMAT_INTPTR:
|
|
/* Answer the count of characters written. */
|
|
#ifdef HAVE_LONG_LONG_TYPE
|
|
if(p->flags & FLAGS_LONGLONG)
|
|
*(LONG_LONG_TYPE *) p->data.ptr = (LONG_LONG_TYPE)done;
|
|
else
|
|
#endif
|
|
if(p->flags & FLAGS_LONG)
|
|
*(long *) p->data.ptr = (long)done;
|
|
else if(!(p->flags & FLAGS_SHORT))
|
|
*(int *) p->data.ptr = (int)done;
|
|
else
|
|
*(short *) p->data.ptr = (short)done;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
f = *end++; /* goto end of %-code */
|
|
|
|
}
|
|
return done;
|
|
}
|
|
|
|
/* fputc() look-alike */
|
|
static int addbyter(int output, FILE *data)
|
|
{
|
|
struct nsprintf *infop=(struct nsprintf *)data;
|
|
unsigned char outc = (unsigned char)output;
|
|
|
|
if(infop->length < infop->max) {
|
|
/* only do this if we haven't reached max length yet */
|
|
infop->buffer[0] = outc; /* store */
|
|
infop->buffer++; /* increase pointer */
|
|
infop->length++; /* we are now one byte larger */
|
|
return outc; /* fputc() returns like this on success */
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int curl_mvsnprintf(char *buffer, size_t maxlength, const char *format,
|
|
va_list ap_save)
|
|
{
|
|
int retcode;
|
|
struct nsprintf info;
|
|
|
|
info.buffer = buffer;
|
|
info.length = 0;
|
|
info.max = maxlength;
|
|
|
|
retcode = dprintf_formatf(&info, addbyter, format, ap_save);
|
|
if(info.max) {
|
|
/* we terminate this with a zero byte */
|
|
if(info.max == info.length)
|
|
/* we're at maximum, scrap the last letter */
|
|
info.buffer[-1] = 0;
|
|
else
|
|
info.buffer[0] = 0;
|
|
}
|
|
return retcode;
|
|
}
|
|
|
|
int curl_msnprintf(char *buffer, size_t maxlength, const char *format, ...)
|
|
{
|
|
int retcode;
|
|
va_list ap_save; /* argument pointer */
|
|
va_start(ap_save, format);
|
|
retcode = curl_mvsnprintf(buffer, maxlength, format, ap_save);
|
|
va_end(ap_save);
|
|
return retcode;
|
|
}
|
|
|
|
/* fputc() look-alike */
|
|
static int alloc_addbyter(int output, FILE *data)
|
|
{
|
|
struct asprintf *infop=(struct asprintf *)data;
|
|
unsigned char outc = (unsigned char)output;
|
|
|
|
if(!infop->buffer) {
|
|
infop->buffer = malloc(32);
|
|
if(!infop->buffer) {
|
|
infop->fail = 1;
|
|
return -1; /* fail */
|
|
}
|
|
infop->alloc = 32;
|
|
infop->len =0;
|
|
}
|
|
else if(infop->len+1 >= infop->alloc) {
|
|
char *newptr;
|
|
|
|
newptr = realloc(infop->buffer, infop->alloc*2);
|
|
|
|
if(!newptr) {
|
|
infop->fail = 1;
|
|
return -1; /* fail */
|
|
}
|
|
infop->buffer = newptr;
|
|
infop->alloc *= 2;
|
|
}
|
|
|
|
infop->buffer[ infop->len ] = outc;
|
|
|
|
infop->len++;
|
|
|
|
return outc; /* fputc() returns like this on success */
|
|
}
|
|
|
|
char *curl_maprintf(const char *format, ...)
|
|
{
|
|
va_list ap_save; /* argument pointer */
|
|
int retcode;
|
|
struct asprintf info;
|
|
|
|
info.buffer = NULL;
|
|
info.len = 0;
|
|
info.alloc = 0;
|
|
info.fail = 0;
|
|
|
|
va_start(ap_save, format);
|
|
retcode = dprintf_formatf(&info, alloc_addbyter, format, ap_save);
|
|
va_end(ap_save);
|
|
if((-1 == retcode) || info.fail) {
|
|
if(info.alloc)
|
|
free(info.buffer);
|
|
return NULL;
|
|
}
|
|
if(info.alloc) {
|
|
info.buffer[info.len] = 0; /* we terminate this with a zero byte */
|
|
return info.buffer;
|
|
}
|
|
else
|
|
return strdup("");
|
|
}
|
|
|
|
char *curl_mvaprintf(const char *format, va_list ap_save)
|
|
{
|
|
int retcode;
|
|
struct asprintf info;
|
|
|
|
info.buffer = NULL;
|
|
info.len = 0;
|
|
info.alloc = 0;
|
|
info.fail = 0;
|
|
|
|
retcode = dprintf_formatf(&info, alloc_addbyter, format, ap_save);
|
|
if((-1 == retcode) || info.fail) {
|
|
if(info.alloc)
|
|
free(info.buffer);
|
|
return NULL;
|
|
}
|
|
|
|
if(info.alloc) {
|
|
info.buffer[info.len] = 0; /* we terminate this with a zero byte */
|
|
return info.buffer;
|
|
}
|
|
else
|
|
return strdup("");
|
|
}
|
|
|
|
static int storebuffer(int output, FILE *data)
|
|
{
|
|
char **buffer = (char **)data;
|
|
unsigned char outc = (unsigned char)output;
|
|
**buffer = outc;
|
|
(*buffer)++;
|
|
return outc; /* act like fputc() ! */
|
|
}
|
|
|
|
int curl_msprintf(char *buffer, const char *format, ...)
|
|
{
|
|
va_list ap_save; /* argument pointer */
|
|
int retcode;
|
|
va_start(ap_save, format);
|
|
retcode = dprintf_formatf(&buffer, storebuffer, format, ap_save);
|
|
va_end(ap_save);
|
|
*buffer=0; /* we terminate this with a zero byte */
|
|
return retcode;
|
|
}
|
|
|
|
int curl_mprintf(const char *format, ...)
|
|
{
|
|
int retcode;
|
|
va_list ap_save; /* argument pointer */
|
|
va_start(ap_save, format);
|
|
|
|
retcode = dprintf_formatf(stdout, fputc, format, ap_save);
|
|
va_end(ap_save);
|
|
return retcode;
|
|
}
|
|
|
|
int curl_mfprintf(FILE *whereto, const char *format, ...)
|
|
{
|
|
int retcode;
|
|
va_list ap_save; /* argument pointer */
|
|
va_start(ap_save, format);
|
|
retcode = dprintf_formatf(whereto, fputc, format, ap_save);
|
|
va_end(ap_save);
|
|
return retcode;
|
|
}
|
|
|
|
int curl_mvsprintf(char *buffer, const char *format, va_list ap_save)
|
|
{
|
|
int retcode;
|
|
retcode = dprintf_formatf(&buffer, storebuffer, format, ap_save);
|
|
*buffer=0; /* we terminate this with a zero byte */
|
|
return retcode;
|
|
}
|
|
|
|
int curl_mvprintf(const char *format, va_list ap_save)
|
|
{
|
|
return dprintf_formatf(stdout, fputc, format, ap_save);
|
|
}
|
|
|
|
int curl_mvfprintf(FILE *whereto, const char *format, va_list ap_save)
|
|
{
|
|
return dprintf_formatf(whereto, fputc, format, ap_save);
|
|
}
|