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-rw-r--r--libcurl/src/lib/mprintf.c1142
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diff --git a/libcurl/src/lib/mprintf.c b/libcurl/src/lib/mprintf.c
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+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1999 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * 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.
+ *
+ *
+ * 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 "curl_setup.h"
+
+#if defined(DJGPP) && (DJGPP_MINOR < 4)
+#undef _MPRINTF_REPLACE /* don't use x_was_used() here */
+#endif
+
+#include <curl/mprintf.h>
+
+#include "curl_memory.h"
+/* The last #include file should be: */
+#include "memdebug.h"
+
+#ifndef SIZEOF_LONG_DOUBLE
+#define SIZEOF_LONG_DOUBLE 0
+#endif
+
+/*
+ * If SIZEOF_SIZE_T has not been defined, default to the size of long.
+ */
+
+#ifndef SIZEOF_SIZE_T
+# define SIZEOF_SIZE_T CURL_SIZEOF_LONG
+#endif
+
+#ifdef HAVE_LONGLONG
+# define LONG_LONG_TYPE long long
+# define HAVE_LONG_LONG_TYPE
+#else
+# if defined(_MSC_VER) && (_MSC_VER >= 900) && (_INTEGRAL_MAX_BITS >= 64)
+# define LONG_LONG_TYPE __int64
+# define HAVE_LONG_LONG_TYPE
+# else
+# undef LONG_LONG_TYPE
+# undef HAVE_LONG_LONG_TYPE
+# endif
+#endif
+
+/*
+ * Non-ANSI integer extensions
+ */
+
+#if (defined(__BORLANDC__) && (__BORLANDC__ >= 0x520)) || \
+ (defined(__WATCOMC__) && defined(__386__)) || \
+ (defined(__POCC__) && defined(_MSC_VER)) || \
+ (defined(_WIN32_WCE)) || \
+ (defined(__MINGW32__)) || \
+ (defined(_MSC_VER) && (_MSC_VER >= 900) && (_INTEGRAL_MAX_BITS >= 64))
+# define MP_HAVE_INT_EXTENSIONS
+#endif
+
+/*
+ * Max integer data types that mprintf.c is capable
+ */
+
+#ifdef HAVE_LONG_LONG_TYPE
+# define mp_intmax_t LONG_LONG_TYPE
+# define mp_uintmax_t unsigned LONG_LONG_TYPE
+#else
+# define mp_intmax_t long
+# define mp_uintmax_t unsigned long
+#endif
+
+#define BUFFSIZE 256 /* buffer for long-to-str and float-to-str calcs */
+#define MAX_PARAMETERS 128 /* lame static limit */
+
+#ifdef __AMIGA__
+# undef FORMAT_INT
+#endif
+
+/* Lower-case digits. */
+static const char lower_digits[] = "0123456789abcdefghijklmnopqrstuvwxyz";
+
+/* Upper-case digits. */
+static const char upper_digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+#define OUTCHAR(x) \
+ do{ \
+ if(stream((unsigned char)(x), (FILE *)data) != -1) \
+ done++; \
+ else \
+ return done; /* return immediately on failure */ \
+ } WHILE_FALSE
+
+/* 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;
+
+/* conversion 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>$' used */
+ FLAGS_WIDTHPARAM = 1<<14, /* width PARAMETER was specified */
+ FLAGS_PREC = 1<<15, /* precision was specified */
+ FLAGS_PRECPARAM = 1<<16, /* precision PARAMETER was specified */
+ FLAGS_CHAR = 1<<17, /* %c story */
+ FLAGS_FLOATE = 1<<18, /* %e or %E */
+ FLAGS_FLOATG = 1<<19 /* %g or %G */
+};
+
+typedef struct {
+ FormatType type;
+ int flags;
+ long width; /* width OR width parameter number */
+ long precision; /* precision OR precision parameter number */
+ union {
+ char *str;
+ void *ptr;
+ union {
+ mp_intmax_t as_signed;
+ mp_uintmax_t as_unsigned;
+ } num;
+ double dnum;
+ } data;
+} va_stack_t;
+
+struct nsprintf {
+ char *buffer;
+ size_t length;
+ size_t max;
+};
+
+struct asprintf {
+ char *buffer; /* allocated buffer */
+ size_t len; /* length of string */
+ size_t alloc; /* length of alloc */
+ int fail; /* (!= 0) if an alloc has failed and thus
+ the output is not the complete data */
+};
+
+static long dprintf_DollarString(char *input, char **end)
+{
+ int number=0;
+ while(ISDIGIT(*input)) {
+ number *= 10;
+ number += *input-'0';
+ input++;
+ }
+ if(number && ('$'==*input++)) {
+ *end = input;
+ return number;
+ }
+ return 0;
+}
+
+static bool dprintf_IsQualifierNoDollar(const char *fmt)
+{
+#if defined(MP_HAVE_INT_EXTENSIONS)
+ if(!strncmp(fmt, "I32", 3) || !strncmp(fmt, "I64", 3)) {
+ return TRUE;
+ }
+#endif
+
+ switch(*fmt) {
+ 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':
+ case '*': case 'O':
+#if defined(MP_HAVE_INT_EXTENSIONS)
+ case 'I':
+#endif
+ return TRUE;
+
+ default:
+ return FALSE;
+ }
+}
+
+/******************************************************************
+ *
+ * Pass 1:
+ * Create an index with the type of each parameter entry and its
+ * value (may vary in size)
+ *
+ ******************************************************************/
+
+static long dprintf_Pass1(const char *format, va_stack_t *vto, char **endpos,
+ va_list arglist)
+{
+ char *fmt = (char *)format;
+ int param_num = 0;
+ long this_param;
+ long width;
+ long precision;
+ int flags;
+ long max_param=0;
+ long i;
+
+ while(*fmt) {
+ if(*fmt++ == '%') {
+ if(*fmt == '%') {
+ fmt++;
+ continue; /* while */
+ }
+
+ flags = FLAGS_NEW;
+
+ /* Handle the positional case (N$) */
+
+ param_num++;
+
+ this_param = dprintf_DollarString(fmt, &fmt);
+ if(0 == this_param)
+ /* we got no positional, get the next counter */
+ this_param = param_num;
+
+ if(this_param > max_param)
+ max_param = this_param;
+
+ /*
+ * The parameter with number 'i' should be used. Next, we need
+ * to get SIZE and TYPE of the parameter. Add the information
+ * to our array.
+ */
+
+ width = 0;
+ precision = 0;
+
+ /* Handle the flags */
+
+ while(dprintf_IsQualifierNoDollar(fmt)) {
+#if defined(MP_HAVE_INT_EXTENSIONS)
+ if(!strncmp(fmt, "I32", 3)) {
+ flags |= FLAGS_LONG;
+ fmt += 3;
+ }
+ else if(!strncmp(fmt, "I64", 3)) {
+ flags |= FLAGS_LONGLONG;
+ fmt += 3;
+ }
+ else
+#endif
+
+ switch(*fmt++) {
+ case ' ':
+ flags |= FLAGS_SPACE;
+ break;
+ case '+':
+ flags |= FLAGS_SHOWSIGN;
+ break;
+ case '-':
+ flags |= FLAGS_LEFT;
+ flags &= ~FLAGS_PAD_NIL;
+ break;
+ case '#':
+ flags |= FLAGS_ALT;
+ break;
+ case '.':
+ flags |= FLAGS_PREC;
+ if('*' == *fmt) {
+ /* The precision is picked from a specified parameter */
+
+ flags |= FLAGS_PRECPARAM;
+ fmt++;
+ param_num++;
+
+ i = dprintf_DollarString(fmt, &fmt);
+ if(i)
+ precision = i;
+ else
+ precision = param_num;
+
+ if(precision > max_param)
+ max_param = precision;
+ }
+ else {
+ flags |= FLAGS_PREC;
+ precision = strtol(fmt, &fmt, 10);
+ }
+ break;
+ case 'h':
+ flags |= FLAGS_SHORT;
+ break;
+#if defined(MP_HAVE_INT_EXTENSIONS)
+ case 'I':
+#if (CURL_SIZEOF_CURL_OFF_T > CURL_SIZEOF_LONG)
+ flags |= FLAGS_LONGLONG;
+#else
+ flags |= FLAGS_LONG;
+#endif
+ break;
+#endif
+ case 'l':
+ if(flags & FLAGS_LONG)
+ flags |= FLAGS_LONGLONG;
+ else
+ flags |= FLAGS_LONG;
+ break;
+ case 'L':
+ flags |= FLAGS_LONGDOUBLE;
+ break;
+ case 'q':
+ flags |= FLAGS_LONGLONG;
+ break;
+ case 'z':
+ /* the code below generates a warning if -Wunreachable-code is
+ used */
+#if (SIZEOF_SIZE_T > CURL_SIZEOF_LONG)
+ flags |= FLAGS_LONGLONG;
+#else
+ flags |= FLAGS_LONG;
+#endif
+ break;
+ case 'O':
+#if (CURL_SIZEOF_CURL_OFF_T > CURL_SIZEOF_LONG)
+ flags |= FLAGS_LONGLONG;
+#else
+ flags |= FLAGS_LONG;
+#endif
+ break;
+ case '0':
+ if(!(flags & FLAGS_LEFT))
+ flags |= FLAGS_PAD_NIL;
+ /* FALLTHROUGH */
+ case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ flags |= FLAGS_WIDTH;
+ width = strtol(fmt-1, &fmt, 10);
+ break;
+ case '*': /* Special case */
+ flags |= FLAGS_WIDTHPARAM;
+ param_num++;
+
+ i = dprintf_DollarString(fmt, &fmt);
+ if(i)
+ width = i;
+ else
+ width = param_num;
+ if(width > max_param)
+ max_param=width;
+ break;
+ default:
+ break;
+ }
+ } /* switch */
+
+ /* Handle the specifier */
+
+ i = this_param - 1;
+
+ switch (*fmt) {
+ case 'S':
+ flags |= FLAGS_ALT;
+ /* FALLTHROUGH */
+ case 's':
+ vto[i].type = FORMAT_STRING;
+ break;
+ case 'n':
+ vto[i].type = FORMAT_INTPTR;
+ break;
+ case 'p':
+ vto[i].type = FORMAT_PTR;
+ break;
+ case 'd': case 'i':
+ vto[i].type = FORMAT_INT;
+ break;
+ case 'u':
+ vto[i].type = FORMAT_INT;
+ flags |= FLAGS_UNSIGNED;
+ break;
+ case 'o':
+ vto[i].type = FORMAT_INT;
+ flags |= FLAGS_OCTAL;
+ break;
+ case 'x':
+ vto[i].type = FORMAT_INT;
+ flags |= FLAGS_HEX|FLAGS_UNSIGNED;
+ break;
+ case 'X':
+ vto[i].type = FORMAT_INT;
+ flags |= FLAGS_HEX|FLAGS_UPPER|FLAGS_UNSIGNED;
+ break;
+ case 'c':
+ vto[i].type = FORMAT_INT;
+ flags |= FLAGS_CHAR;
+ break;
+ case 'f':
+ vto[i].type = FORMAT_DOUBLE;
+ break;
+ case 'e':
+ vto[i].type = FORMAT_DOUBLE;
+ flags |= FLAGS_FLOATE;
+ break;
+ case 'E':
+ vto[i].type = FORMAT_DOUBLE;
+ flags |= FLAGS_FLOATE|FLAGS_UPPER;
+ break;
+ case 'g':
+ vto[i].type = FORMAT_DOUBLE;
+ flags |= FLAGS_FLOATG;
+ break;
+ case 'G':
+ vto[i].type = FORMAT_DOUBLE;
+ flags |= FLAGS_FLOATG|FLAGS_UPPER;
+ break;
+ default:
+ vto[i].type = FORMAT_UNKNOWN;
+ break;
+ } /* switch */
+
+ vto[i].flags = flags;
+ vto[i].width = width;
+ vto[i].precision = precision;
+
+ if(flags & FLAGS_WIDTHPARAM) {
+ /* we have the width specified from a parameter, so we make that
+ parameter's info setup properly */
+ vto[i].width = width - 1;
+ i = width - 1;
+ vto[i].type = FORMAT_WIDTH;
+ vto[i].flags = FLAGS_NEW;
+ vto[i].precision = vto[i].width = 0; /* can't use width or precision
+ of width! */
+ }
+ if(flags & FLAGS_PRECPARAM) {
+ /* we have the precision specified from a parameter, so we make that
+ parameter's info setup properly */
+ vto[i].precision = precision - 1;
+ i = precision - 1;
+ vto[i].type = FORMAT_WIDTH;
+ vto[i].flags = FLAGS_NEW;
+ vto[i].precision = vto[i].width = 0; /* can't use width or precision
+ of width! */
+ }
+ *endpos++ = fmt + 1; /* end of this sequence */
+ }
+ }
+
+ /* Read the arg list parameters into our data list */
+ for(i=0; i<max_param; i++) {
+ if((i + 1 < max_param) && (vto[i + 1].type == FORMAT_WIDTH)) {
+ /* Width/precision arguments must be read before the main argument
+ * they are attached to
+ */
+ vto[i + 1].data.num.as_signed = (mp_intmax_t)va_arg(arglist, int);
+ }
+
+ switch (vto[i].type) {
+ case FORMAT_STRING:
+ vto[i].data.str = va_arg(arglist, char *);
+ break;
+
+ case FORMAT_INTPTR:
+ case FORMAT_UNKNOWN:
+ case FORMAT_PTR:
+ vto[i].data.ptr = va_arg(arglist, void *);
+ break;
+
+ case FORMAT_INT:
+#ifdef HAVE_LONG_LONG_TYPE
+ if((vto[i].flags & FLAGS_LONGLONG) && (vto[i].flags & FLAGS_UNSIGNED))
+ vto[i].data.num.as_unsigned =
+ (mp_uintmax_t)va_arg(arglist, mp_uintmax_t);
+ else if(vto[i].flags & FLAGS_LONGLONG)
+ vto[i].data.num.as_signed =
+ (mp_intmax_t)va_arg(arglist, mp_intmax_t);
+ else
+#endif
+ {
+ if((vto[i].flags & FLAGS_LONG) && (vto[i].flags & FLAGS_UNSIGNED))
+ vto[i].data.num.as_unsigned =
+ (mp_uintmax_t)va_arg(arglist, unsigned long);
+ else if(vto[i].flags & FLAGS_LONG)
+ vto[i].data.num.as_signed =
+ (mp_intmax_t)va_arg(arglist, long);
+ else if(vto[i].flags & FLAGS_UNSIGNED)
+ vto[i].data.num.as_unsigned =
+ (mp_uintmax_t)va_arg(arglist, unsigned int);
+ else
+ vto[i].data.num.as_signed =
+ (mp_intmax_t)va_arg(arglist, int);
+ }
+ break;
+
+ case FORMAT_DOUBLE:
+ vto[i].data.dnum = va_arg(arglist, double);
+ break;
+
+ case FORMAT_WIDTH:
+ /* Argument has been read. Silently convert it into an integer
+ * for later use
+ */
+ 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;
+
+ /* 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;
+
+ 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;
+ 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 extraced from a parameter, we
+ must skip that to get to the next one properly */
+ }
+ 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. */
+ {
+ char *workend = &work[sizeof(work) - 1];
+ char *w;
+
+ /* 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 -= (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);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-18 08:01:51 +0000