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-rw-r--r--lib/mprintf.c292
1 files changed, 274 insertions, 18 deletions
diff --git a/lib/mprintf.c b/lib/mprintf.c
index dd9a42f81..1a908b3f2 100644
--- a/lib/mprintf.c
+++ b/lib/mprintf.c
@@ -1,25 +1,281 @@
-/***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
+/****************************************************************************
*
- * Copyright (C) 1998 - 2003, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * $Id$
*
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at http://curl.haxx.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
+ *************************************************************************
*
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
+ * 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.
*
- * $Id$
- ***************************************************************************/
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE AUTHORS AND
+ * CONTRIBUTORS ACCEPT NO RESPONSIBILITY IN ANY CONCEIVABLE MANNER.
+ *
+ * Purpose:
+ * A merge of Bjorn Reese's format() function and Daniel's dsprintf()
+ * 1.0. A full blooded printf() clone with full support for <num>$
+ * everywhere (parameters, widths and precisions) including variabled
+ * sized parameters (like doubles, long longs, long doubles and even
+ * void * in 64-bit architectures).
+ *
+ * Current restrictions:
+ * - Max 128 parameters
+ * - No 'long double' support.
+ *
+ * If you ever want truly portable and good *printf() clones, the project that
+ * took on from here is named 'Trio' and you find more details on the trio web
+ * page at http://daniel.haxx.se/trio/
+ */
+
+
+#include "setup.h"
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <string.h>
+
+#ifndef SIZEOF_LONG_LONG
+/* prevents warnings on picky compilers */
+#define SIZEOF_LONG_LONG 0
+#endif
+#ifndef SIZEOF_LONG_DOUBLE
+#define SIZEOF_LONG_DOUBLE 0
+#endif
+
+
+/* The last #include file should be: */
+#ifdef MALLOCDEBUG
+#include "memdebug.h"
+#endif
+
+#define BUFFSIZE 256 /* buffer for long-to-str and float-to-str calcs */
+#define MAX_PARAMETERS 128 /* lame static limit */
+
+#undef TRUE
+#undef FALSE
+#undef BOOL
+#ifdef __cplusplus
+# define TRUE true
+# define FALSE false
+# define BOOL bool
+#else
+# define TRUE ((char)(1 == 1))
+# define FALSE ((char)(0 == 1))
+# define BOOL char
+#endif
+
+
+/* Lower-case digits. */
+static const char lower_digits[] = "0123456789abcdefghijklmnopqrstuvwxyz";
+
+/* Upper-case digits. */
+static const char upper_digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+#define OUTCHAR(x) done+=(stream(x, (FILE *)data)==-1?0:1)
+
+/* Data type to read from the arglist */
+typedef enum {
+ FORMAT_UNKNOWN = 0,
+ FORMAT_STRING,
+ FORMAT_PTR,
+ FORMAT_INT,
+ FORMAT_INTPTR,
+ FORMAT_LONG,
+ FORMAT_LONGLONG,
+ FORMAT_DOUBLE,
+ FORMAT_LONGDOUBLE,
+ FORMAT_WIDTH /* For internal use */
+} FormatType;
+
+/* convertion and display flags */
+enum {
+ FLAGS_NEW = 0,
+ FLAGS_SPACE = 1<<0,
+ FLAGS_SHOWSIGN = 1<<1,
+ FLAGS_LEFT = 1<<2,
+ FLAGS_ALT = 1<<3,
+ FLAGS_SHORT = 1<<4,
+ FLAGS_LONG = 1<<5,
+ FLAGS_LONGLONG = 1<<6,
+ FLAGS_LONGDOUBLE = 1<<7,
+ FLAGS_PAD_NIL = 1<<8,
+ FLAGS_UNSIGNED = 1<<9,
+ FLAGS_OCTAL = 1<<10,
+ FLAGS_HEX = 1<<11,
+ FLAGS_UPPER = 1<<12,
+ FLAGS_WIDTH = 1<<13, /* '*' or '*<num>$' used */
+ FLAGS_WIDTHPARAM = 1<<14, /* width PARAMETER was specified */
+ FLAGS_PREC = 1<<15, /* precision was specified */
+ FLAGS_PRECPARAM = 1<<16, /* precision PARAMETER was specified */
+ FLAGS_CHAR = 1<<17, /* %c story */
+ FLAGS_FLOATE = 1<<18, /* %e or %E */
+ FLAGS_FLOATG = 1<<19 /* %g or %G */
+};
+
+typedef struct {
+ FormatType type;
+ int flags;
+ int width; /* width OR width parameter number */
+ int precision; /* precision OR precision parameter number */
+ union {
+ char *str;
+ void *ptr;
+ long num;
+#if SIZEOF_LONG_LONG /* if this is non-zero */
+ long long lnum;
+#endif
+ double dnum;
+#if SIZEOF_LONG_DOUBLE
+ long double ldnum;
+#endif
+ } data;
+} va_stack_t;
+
+struct nsprintf {
+ char *buffer;
+ size_t length;
+ size_t max;
+};
+
+struct asprintf {
+ char *buffer; /* allocated buffer */
+ size_t len; /* length of string */
+ size_t alloc; /* length of alloc */
+};
+
+int curl_msprintf(char *buffer, const char *format, ...);
+
+static int dprintf_DollarString(char *input, char **end)
+{
+ int number=0;
+ while(isdigit((int)*input)) {
+ number *= 10;
+ number += *input-'0';
+ input++;
+ }
+ if(number && ('$'==*input++)) {
+ *end = input;
+ return number;
+ }
+ return 0;
+}
+
+static BOOL dprintf_IsQualifierNoDollar(char c)
+{
+ switch (c) {
+ case '-': case '+': case ' ': case '#': case '.':
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ case 'h': case 'l': case 'L': case 'Z': case 'q':
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+#ifdef DPRINTF_DEBUG2
+int dprintf_Pass1Report(va_stack_t *vto, int max)
+{
+ int i;
+ char buffer[128];
+ int bit;
+ int flags;
+
+ for(i=0; i<max; i++) {
+ char *type;
+ switch(vto[i].type) {
+ case FORMAT_UNKNOWN:
+ type = "unknown";
+ break;
+ case FORMAT_STRING:
+ type ="string";
+ break;
+ case FORMAT_PTR:
+ type ="pointer";
+ break;
+ case FORMAT_INT:
+ type = "int";
+ break;
+ case FORMAT_LONG:
+ type = "long";
+ break;
+ case FORMAT_LONGLONG:
+ type = "long long";
+ break;
+ case FORMAT_DOUBLE:
+ type = "double";
+ break;
+ case FORMAT_LONGDOUBLE:
+ type = "long double";
+ break;
+ }
+
+
+ buffer[0]=0;
+
+ for(bit=0; bit<31; bit++) {
+ flags = vto[i].flags & (1<<bit);
+
+ if(flags & FLAGS_SPACE)
+ strcat(buffer, "space ");
+ else if(flags & FLAGS_SHOWSIGN)
+ strcat(buffer, "plus ");
+ else if(flags & FLAGS_LEFT)
+ strcat(buffer, "left ");
+ else if(flags & FLAGS_ALT)
+ strcat(buffer, "alt ");
+ else if(flags & FLAGS_SHORT)
+ strcat(buffer, "short ");
+ else if(flags & FLAGS_LONG)
+ strcat(buffer, "long ");
+ else if(flags & FLAGS_LONGLONG)
+ strcat(buffer, "longlong ");
+ else if(flags & FLAGS_LONGDOUBLE)
+ strcat(buffer, "longdouble ");
+ else if(flags & FLAGS_PAD_NIL)
+ strcat(buffer, "padnil ");
+ else if(flags & FLAGS_UNSIGNED)
+ strcat(buffer, "unsigned ");
+ else if(flags & FLAGS_OCTAL)
+ strcat(buffer, "octal ");
+ else if(flags & FLAGS_HEX)
+ strcat(buffer, "hex ");
+ else if(flags & FLAGS_UPPER)
+ strcat(buffer, "upper ");
+ else if(flags & FLAGS_WIDTH)
+ strcat(buffer, "width ");
+ else if(flags & FLAGS_WIDTHPARAM)
+ strcat(buffer, "widthparam ");
+ else if(flags & FLAGS_PREC)
+ strcat(buffer, "precision ");
+ else if(flags & FLAGS_PRECPARAM)
+ strcat(buffer, "precparam ");
+ else if(flags & FLAGS_CHAR)
+ strcat(buffer, "char ");
+ else if(flags & FLAGS_FLOATE)
+ strcat(buffer, "floate ");
+ else if(flags & FLAGS_FLOATG)
+ strcat(buffer, "floatg ");
+ }
+ printf("REPORT: %d. %s [%s]\n", i, type, buffer);
+
+ }
+
+
+}
+#endif
+
+/******************************************************************
+ *
+ * Pass 1:
+ * Create an index with the type of each parameter entry and its
+ * value (may vary in size)
+ *
+ ******************************************************************/
static int dprintf_Pass1(char *format, va_stack_t *vto, char **endpos, va_list arglist)
{