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Diffstat (limited to 'Utilities/cmcurl/mprintf.c')
| -rw-r--r-- | Utilities/cmcurl/mprintf.c | 1219 |
1 files changed, 1219 insertions, 0 deletions
diff --git a/Utilities/cmcurl/mprintf.c b/Utilities/cmcurl/mprintf.c new file mode 100644 index 0000000..d620fcd --- /dev/null +++ b/Utilities/cmcurl/mprintf.c @@ -0,0 +1,1219 @@ +/**************************************************************************** + * + * $Id$ + * + ************************************************************************* + * + * 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. + * + * 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> + +#include <curl/mprintf.h> + +#ifndef SIZEOF_LONG_DOUBLE +#define SIZEOF_LONG_DOUBLE 0 +#endif + +#ifndef SIZEOF_SIZE_T +/* default to 4 bytes for size_t unless defined in the config.h */ +#define SIZEOF_SIZE_T 4 +#endif + +#ifdef DPRINTF_DEBUG +#define HAVE_LONGLONG +#define LONG_LONG long long +#define ENABLE_64BIT +#endif + +#include "curl_memory.h" +/* The last #include file should be: */ +#include "memdebug.h" + +#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) \ + do{ \ + if(stream((unsigned char)(x), (FILE *)data) != -1) \ + done++; \ + else \ + return done; /* return immediately on failure */ \ + } while(0) + +/* 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>$' used */ + FLAGS_WIDTHPARAM = 1<<14, /* width PARAMETER was specified */ + FLAGS_PREC = 1<<15, /* precision was specified */ + FLAGS_PRECPARAM = 1<<16, /* precision PARAMETER was specified */ + FLAGS_CHAR = 1<<17, /* %c story */ + FLAGS_FLOATE = 1<<18, /* %e or %E */ + FLAGS_FLOATG = 1<<19 /* %g or %G */ +}; + +typedef struct { + FormatType type; + int flags; + long width; /* width OR width parameter number */ + long precision; /* precision OR precision parameter number */ + union { + char *str; + void *ptr; + long num; +#ifdef ENABLE_64BIT + LONG_LONG lnum; +#endif + double dnum; + } data; +} va_stack_t; + +struct nsprintf { + char *buffer; + size_t length; + size_t max; +}; + +struct asprintf { + char *buffer; /* allocated buffer */ + size_t len; /* length of string */ + size_t alloc; /* length of alloc */ + bool fail; /* TRUE if an alloc has failed and thus the output is not + the complete data */ +}; + +int curl_msprintf(char *buffer, const char *format, ...); + +static long dprintf_DollarString(char *input, char **end) +{ + int number=0; + while(isdigit((int)*input)) { + number *= 10; + number += *input-'0'; + input++; + } + if(number && ('$'==*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': + case '*': case 'O': + 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 long dprintf_Pass1(char *format, va_stack_t *vto, char **endpos, + va_list arglist) +{ + char *fmt = 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)) { + 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; + 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>4 + flags |= FLAGS_LONGLONG; +#else + flags |= FLAGS_LONG; +#endif + break; + case 'O': +#if SIZEOF_CURL_OFF_T > 4 + 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; + break; + case 'X': + vto[i].type = FORMAT_INT; + flags |= FLAGS_HEX|FLAGS_UPPER; + 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 */ + } + } + +#ifdef DPRINTF_DEBUG2 + dprintf_Pass1Report(vto, max_param); +#endif + + /* 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 = 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 ENABLE_64BIT + if(vto[i].flags & FLAGS_LONGLONG) + vto[i].data.lnum = va_arg(arglist, LONG_LONG); + else +#endif + if(vto[i].flags & FLAGS_LONG) + vto[i].data.num = va_arg(arglist, long); + else + vto[i].data.num = 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((char *)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. */ + char alt; + + /* Width of a field. */ + long width; + + /* Precision of a field. */ + long prec; + + /* Decimal integer is negative. */ + char is_neg; + + /* Base of a number to be written. */ + long base; + + /* Integral values to be written. */ +#ifdef ENABLE_64BIT + unsigned LONG_LONG num; +#else + unsigned long num; +#endif + long 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 imediately + 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 = vto[p->width].data.num; + else + width = p->width; + + /* pick up the specified precision */ + if(p->flags & FLAGS_PRECPARAM) + prec = vto[p->precision].data.num; + else if(p->flags & FLAGS_PREC) + prec = p->precision; + else + prec = -1; + + alt = (p->flags & FLAGS_ALT)?TRUE:FALSE; + + switch (p->type) { + case FORMAT_INT: + num = p->data.num; + 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_UNSIGNED) { + /* Decimal unsigned integer. */ + base = 10; + goto unsigned_number; + } + if(p->flags & FLAGS_OCTAL) { + /* Octal unsigned integer. */ + base = 8; + goto unsigned_number; + } + if(p->flags & FLAGS_HEX) { + /* Hexadecimal unsigned integer. */ + + digits = (p->flags & FLAGS_UPPER)? upper_digits : lower_digits; + base = 16; + goto unsigned_number; + } + + /* Decimal integer. */ + base = 10; + +#ifdef ENABLE_64BIT + if(p->flags & FLAGS_LONGLONG) { + /* long long */ + is_neg = p->data.lnum < 0; + num = is_neg ? (- p->data.lnum) : p->data.lnum; + } + else +#endif + { + signed_num = (long) num; + is_neg = signed_num < 0; + num = is_neg ? (- signed_num) : signed_num; + } + 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 -= workend - w; + prec -= workend - w; + + if (alt && base == 8 && prec <= 0) { + *w-- = '0'; + --width; + } + + if (prec > 0) { + width -= prec; + while (prec-- > 0) + *w-- = '0'; + } + + if (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 (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 char null[] = "(nil)"; + 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 = (char *)""; + len = 0; + } + } + else + len = strlen(str); + + if (prec != -1 && (size_t) prec < len) + len = prec; + width -= len; + + if (p->flags & FLAGS_ALT) + OUTCHAR('"'); + + if (!(p->flags&FLAGS_LEFT)) + while (width-- > 0) + OUTCHAR(' '); + + while (len-- > 0) + 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; + alt = 1; + num = (unsigned long) ptr; + is_neg = 0; + goto number; + } + else { + /* Write "(nil)" for a nil pointer. */ + static char strnil[] = "(nil)"; + char *point; + + width -= 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; + 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 = vto[p->width].data.num; + + prec = -1; + if (p->flags & FLAGS_PREC) + prec = p->precision; + else if (p->flags & FLAGS_PRECPARAM) + prec = vto[p->precision].data.num; + + if (p->flags & FLAGS_LEFT) + strcat(formatbuf, "-"); + if (p->flags & FLAGS_SHOWSIGN) + strcat(formatbuf, "+"); + if (p->flags & FLAGS_SPACE) + strcat(formatbuf, " "); + if (p->flags & FLAGS_ALT) + strcat(formatbuf, "#"); + + fptr=&formatbuf[strlen(formatbuf)]; + + 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; + left -= len; + } + (void)left; + if (p->flags & FLAGS_LONG) + *fptr++ = 'l'; + + if (p->flags & FLAGS_FLOATE) + *fptr++ = p->flags&FLAGS_UPPER ? 'E':'e'; + else if (p->flags & FLAGS_FLOATG) + *fptr++ = p->flags & FLAGS_UPPER ? 'G' : 'g'; + else + *fptr++ = 'f'; + + *fptr = 0; /* and a final zero termination */ + + /* NOTE NOTE NOTE!! Not all sprintf() implementations returns 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 ENABLE_64BIT + if (p->flags & FLAGS_LONGLONG) + *(LONG_LONG *) p->data.ptr = (LONG_LONG)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=(char *)malloc(32); + if(!infop->buffer) { + infop->fail = TRUE; + return -1; /* fail */ + } + infop->alloc = 32; + infop->len =0; + } + else if(infop->len+1 >= infop->alloc) { + char *newptr; + + newptr = (char *)realloc(infop->buffer, infop->alloc*2); + + if(!newptr) { + infop->fail = TRUE; + return -1; + } + 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 = FALSE; + + 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 = FALSE; + + 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; +} + +#ifndef WIN32 /* not needed on win32 */ +extern int fputc(int, FILE *); +#endif + +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); +} + +#ifdef DPRINTF_DEBUG +int main() +{ + char buffer[129]; + char *ptr; +#ifdef ENABLE_64BIT + long long one=99; + long long two=100; + long long test = 0x1000000000LL; + curl_mprintf("%lld %lld %lld\n", one, two, test); +#endif + + curl_mprintf("%3d %5d\n", 10, 1998); + + ptr=curl_maprintf("test this then baby %s%s%s%s%s%s %d %d %d loser baby get a hit in yer face now!", "", "pretty long string pretty long string pretty long string pretty long string pretty long string", "/", "/", "/", "pretty long string", 1998, 1999, 2001); + + puts(ptr); + + memset(ptr, 55, strlen(ptr)+1); + + free(ptr); + +#if 1 + curl_mprintf(buffer, "%s %s %d", "daniel", "stenberg", 19988); + puts(buffer); + + curl_mfprintf(stderr, "%s %#08x\n", "dummy", 65); + + printf("%s %#08x\n", "dummy", 65); + { + double tryout = 3.14156592; + curl_mprintf(buffer, "%.2g %G %f %e %E", tryout, tryout, tryout, tryout, tryout); + puts(buffer); + printf("%.2g %G %f %e %E\n", tryout, tryout, tryout, tryout, tryout); + } +#endif + + return 0; +} + +#endif |