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different snprintf version.

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This commit is contained in:
Ulf Möller
2000-02-25 14:00:24 +00:00
parent 935a50e886
commit b478e91fda
1 changed files with 590 additions and 581 deletions
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567
crypto/bio/b_print.c
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@@ -62,11 +62,20 @@
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <sys/types.h>
#include "cryptlib.h"
#include <openssl/bio.h>
static void dopr (char *buffer, size_t maxlen, const char *format,
va_list args);
#ifdef BN_LLONG
# ifndef HAVE_LONG_LONG
# define HAVE_LONG_LONG
# endif
#endif
static void dopr (char *buffer, size_t maxlen, size_t *retlen,
const char *format, va_list args);
int BIO_printf (BIO *bio, ...)
{
@@ -79,10 +88,8 @@ int BIO_printf (BIO *bio, ...)
format=va_arg(args, char *);
hugebuf[0]='\0';
dopr(hugebuf, sizeof(hugebuf), format, args);
ret=BIO_write(bio,hugebuf,strlen(hugebuf));
dopr(hugebuf, sizeof(hugebuf), &ret, format, args);
ret=BIO_write(bio, hugebuf, ret);
va_end(args);
return(ret);
@@ -90,28 +97,42 @@ int BIO_printf (BIO *bio, ...)
/*
* Copyright Patrick Powell 1995
* This code is based on code written by Patrick Powell (papowell@astart.com)
* This code is based on code written by Patrick Powell <papowell@astart.com>
* It may be used for any purpose as long as this notice remains intact
* on all source code distributions
* on all source code distributions.
*/
#include <string.h>
#include <ctype.h>
#include <sys/types.h>
#include <stdarg.h>
static void fmtstr (char *buffer, size_t *currlen, size_t maxlen,
char *value, int flags, int min, int max);
static void fmtint (char *buffer, size_t *currlen, size_t maxlen,
long value, int base, int min, int max, int flags);
static void fmtfp (char *buffer, size_t *currlen, size_t maxlen,
long double fvalue, int min, int max, int flags);
static void dopr_outch (char *buffer, size_t *currlen, size_t maxlen, char c );
/*
* dopr(): poor man's version of doprintf
* This code contains numerious changes and enhancements which were
* made by lots of contributors over the last years to Patrick Powell's
* original code:
*
* o Patrick Powell <papowell@astart.com> (1995)
* o Brandon Long <blong@fiction.net> (1996, for Mutt)
* o Thomas Roessler <roessler@guug.de> (1998, for Mutt)
* o Michael Elkins <me@cs.hmc.edu> (1998, for Mutt)
* o Andrew Tridgell <tridge@samba.org> (1998, for Samba)
* o Luke Mewburn <lukem@netbsd.org> (1999, for LukemFTP)
* o Ralf S. Engelschall <rse@engelschall.com> (1999, for Pth)
*/
#if HAVE_LONG_DOUBLE
#define LDOUBLE long double
#else
#define LDOUBLE double
#endif
#if HAVE_LONG_LONG
#define LLONG long long
#else
#define LLONG long
#endif
static void fmtstr (char *, size_t *, size_t, char *, int, int, int);
static void fmtint (char *, size_t *, size_t, LLONG, int, int, int, int);
static void fmtfp (char *, size_t *, size_t, LDOUBLE, int, int, int);
static void dopr_outch (char *, size_t *, size_t, int);
/* format read states */
#define DP_S_DEFAULT 0
#define DP_S_FLAGS 1
@@ -131,19 +152,27 @@ static void dopr_outch (char *buffer, size_t *currlen, size_t maxlen, char c );
#define DP_F_UP (1 << 5)
#define DP_F_UNSIGNED (1 << 6)
/* Conversion Flags */
/* conversion flags */
#define DP_C_SHORT 1
#define DP_C_LONG 2
#define DP_C_LDOUBLE 3
#define DP_C_LLONG 4
/* some handy macros */
#define char_to_int(p) (p - '0')
#define MAX(p,q) ((p >= q) ? p : q)
static void dopr (char *buffer, size_t maxlen, const char *format, va_list args)
static void
dopr(
char *buffer,
size_t maxlen,
size_t *retlen,
const char *format,
va_list args)
{
char ch;
long value;
long double fvalue;
LLONG value;
LDOUBLE fvalue;
char *strvalue;
int min;
int max;
@@ -153,27 +182,24 @@ static void dopr (char *buffer, size_t maxlen, const char *format, va_list args)
size_t currlen;
state = DP_S_DEFAULT;
currlen = flags = cflags = min = 0;
flags = currlen = cflags = min = 0;
max = -1;
ch = *format++;
while (state != DP_S_DONE)
{
while (state != DP_S_DONE) {
if ((ch == '\0') || (currlen >= maxlen))
state = DP_S_DONE;
switch(state)
{
switch (state) {
case DP_S_DEFAULT:
if (ch == '%')
state = DP_S_FLAGS;
else
dopr_outch (buffer, &currlen, maxlen, ch);
dopr_outch(buffer, &currlen, maxlen, ch);
ch = *format++;
break;
case DP_S_FLAGS:
switch (ch)
{
switch (ch) {
case '-':
flags |= DP_F_MINUS;
ch = *format++;
@@ -200,58 +226,54 @@ static void dopr (char *buffer, size_t maxlen, const char *format, va_list args)
}
break;
case DP_S_MIN:
if (isdigit((unsigned char)ch))
{
min = 10*min + char_to_int (ch);
if (isdigit((unsigned char)ch)) {
min = 10 * min + char_to_int(ch);
ch = *format++;
}
else if (ch == '*')
{
min = va_arg (args, int);
} else if (ch == '*') {
min = va_arg(args, int);
ch = *format++;
state = DP_S_DOT;
}
else
} else
state = DP_S_DOT;
break;
case DP_S_DOT:
if (ch == '.')
{
if (ch == '.') {
state = DP_S_MAX;
ch = *format++;
}
else
} else
state = DP_S_MOD;
break;
case DP_S_MAX:
if (isdigit((unsigned char)ch))
{
if (isdigit((unsigned char)ch)) {
if (max < 0)
max = 0;
max = 10*max + char_to_int (ch);
max = 10 * max + char_to_int(ch);
ch = *format++;
}
else if (ch == '*')
{
max = va_arg (args, int);
} else if (ch == '*') {
max = va_arg(args, int);
ch = *format++;
state = DP_S_MOD;
}
else
} else
state = DP_S_MOD;
break;
case DP_S_MOD:
/* Currently, we don't support Long Long, bummer */
switch (ch)
{
switch (ch) {
case 'h':
cflags = DP_C_SHORT;
ch = *format++;
break;
case 'l':
if (*format == 'l') {
cflags = DP_C_LLONG;
format++;
} else
cflags = DP_C_LONG;
ch = *format++;
break;
case 'q':
cflags = DP_C_LLONG;
ch = *format++;
break;
case 'L':
cflags = DP_C_LDOUBLE;
ch = *format++;
@@ -262,116 +284,120 @@ static void dopr (char *buffer, size_t maxlen, const char *format, va_list args)
state = DP_S_CONV;
break;
case DP_S_CONV:
switch (ch)
{
switch (ch) {
case 'd':
case 'i':
if (cflags == DP_C_SHORT)
value = va_arg (args, short int);
else if (cflags == DP_C_LONG)
value = va_arg (args, long int);
else
value = va_arg (args, int);
fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
switch (cflags) {
case DP_C_SHORT:
value = va_arg(args, short int);
break;
case 'o':
flags |= DP_F_UNSIGNED;
if (cflags == DP_C_SHORT)
value = va_arg (args, unsigned short int);
else if (cflags == DP_C_LONG)
value = va_arg (args, unsigned long int);
else
value = va_arg (args, unsigned int);
fmtint (buffer, &currlen, maxlen, value, 8, min, max, flags);
case DP_C_LONG:
value = va_arg(args, long int);
break;
case 'u':
flags |= DP_F_UNSIGNED;
if (cflags == DP_C_SHORT)
value = va_arg (args, unsigned short int);
else if (cflags == DP_C_LONG)
value = va_arg (args, unsigned long int);
else
value = va_arg (args, unsigned int);
fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
case DP_C_LLONG:
value = va_arg(args, LLONG);
break;
default:
value = va_arg(args, int);
break;
}
fmtint(buffer, &currlen, maxlen, value, 10, min, max, flags);
break;
case 'X':
flags |= DP_F_UP;
/* FALLTHROUGH */
case 'x':
case 'o':
case 'u':
flags |= DP_F_UNSIGNED;
if (cflags == DP_C_SHORT)
value = va_arg (args, unsigned short int);
else if (cflags == DP_C_LONG)
value = va_arg (args, unsigned long int);
else
value = va_arg (args, unsigned int);
fmtint (buffer, &currlen, maxlen, value, 16, min, max, flags);
switch (cflags) {
case DP_C_SHORT:
value = va_arg(args,
unsigned short int);
break;
case DP_C_LONG:
value = (LLONG) va_arg(args,
unsigned long int);
break;
case DP_C_LLONG:
value = va_arg(args, unsigned LLONG);
break;
default:
value = (LLONG) va_arg(args,
unsigned int);
break;
}
fmtint(buffer, &currlen, maxlen, value,
ch == 'o' ? 8 : (ch == 'u' ? 10 : 16),
min, max, flags);
break;
case 'f':
if (cflags == DP_C_LDOUBLE)
fvalue = va_arg (args, long double);
fvalue = va_arg(args, LDOUBLE);
else
fvalue = va_arg (args, double);
/* um, floating point? */
fmtfp (buffer, &currlen, maxlen, fvalue, min, max, flags);
fvalue = va_arg(args, double);
fmtfp(buffer, &currlen, maxlen, fvalue, min, max, flags);
break;
case 'E':
flags |= DP_F_UP;
case 'e':
if (cflags == DP_C_LDOUBLE)
fvalue = va_arg (args, long double);
fvalue = va_arg(args, LDOUBLE);
else
fvalue = va_arg (args, double);
fvalue = va_arg(args, double);
break;
case 'G':
flags |= DP_F_UP;
case 'g':
if (cflags == DP_C_LDOUBLE)
fvalue = va_arg (args, long double);
fvalue = va_arg(args, LDOUBLE);
else
fvalue = va_arg (args, double);
fvalue = va_arg(args, double);
break;
case 'c':
dopr_outch (buffer, &currlen, maxlen, va_arg (args, int));
dopr_outch(buffer, &currlen, maxlen,
va_arg(args, int));
break;
case 's':
strvalue = va_arg (args, char *);
strvalue = va_arg(args, char *);
if (max < 0)
max = maxlen; /* ie, no max */
fmtstr (buffer, &currlen, maxlen, strvalue, flags, min, max);
max = maxlen;
fmtstr(buffer, &currlen, maxlen, strvalue,
flags, min, max);
break;
case 'p':
strvalue = va_arg (args, void *);
fmtint (buffer, &currlen, maxlen, (long) strvalue, 16, min, max, flags);
value = (long)va_arg(args, void *);
fmtint(buffer, &currlen, maxlen,
value, 16, min, max, flags);
break;
case 'n':
if (cflags == DP_C_SHORT)
{
case 'n': /* XXX */
if (cflags == DP_C_SHORT) {
short int *num;
num = va_arg (args, short int *);
num = va_arg(args, short int *);
*num = currlen;
}
else if (cflags == DP_C_LONG)
{
} else if (cflags == DP_C_LONG) { /* XXX */
long int *num;
num = va_arg (args, long int *);
*num = currlen;
}
else
{
num = va_arg(args, long int *);
*num = (long int) currlen;
} else if (cflags == DP_C_LLONG) { /* XXX */
LLONG *num;
num = va_arg(args, LLONG *);
*num = (LLONG) currlen;
} else {
int *num;
num = va_arg (args, int *);
num = va_arg(args, int *);
*num = currlen;
}
break;
case '%':
dopr_outch (buffer, &currlen, maxlen, ch);
dopr_outch(buffer, &currlen, maxlen, ch);
break;
case 'w':
/* not supported yet, treat as next char */
ch = *format++;
break;
default:
/* Unknown, skip */
/* unknown, skip */
break;
}
ch = *format++;
@@ -382,257 +408,239 @@ static void dopr (char *buffer, size_t maxlen, const char *format, va_list args)
case DP_S_DONE:
break;
default:
/* hmm? */
break; /* some picky compilers need this */
break;
}
}
if (currlen < maxlen - 1)
if (currlen >= maxlen - 1)
currlen = maxlen - 1;
buffer[currlen] = '\0';
else
buffer[maxlen - 1] = '\0';
*retlen = currlen;
return;
}
static void fmtstr (char *buffer, size_t *currlen, size_t maxlen,
char *value, int flags, int min, int max)
static void
fmtstr(
char *buffer,
size_t *currlen,
size_t maxlen,
char *value,
int flags,
int min,
int max)
{
int padlen, strln; /* amount to pad */
int padlen, strln;
int cnt = 0;
if (value == 0)
{
value = "<NULL>";
}
for (strln = 0; value[strln]; ++strln); /* strlen */
for (strln = 0; value[strln]; ++strln)
;
padlen = min - strln;
if (padlen < 0)
padlen = 0;
if (flags & DP_F_MINUS)
padlen = -padlen; /* Left Justify */
padlen = -padlen;
while ((padlen > 0) && (cnt < max))
{
dopr_outch (buffer, currlen, maxlen, ' ');
while ((padlen > 0) && (cnt < max)) {
dopr_outch(buffer, currlen, maxlen, ' ');
--padlen;
++cnt;
}
while (*value && (cnt < max))
{
dopr_outch (buffer, currlen, maxlen, *value++);
while (*value && (cnt < max)) {
dopr_outch(buffer, currlen, maxlen, *value++);
++cnt;
}
while ((padlen < 0) && (cnt < max))
{
dopr_outch (buffer, currlen, maxlen, ' ');
while ((padlen < 0) && (cnt < max)) {
dopr_outch(buffer, currlen, maxlen, ' ');
++padlen;
++cnt;
}
}
/* Have to handle DP_F_NUM (ie 0x and 0 alternates) */
static void fmtint (char *buffer, size_t *currlen, size_t maxlen,
long value, int base, int min, int max, int flags)
static void
fmtint(
char *buffer,
size_t *currlen,
size_t maxlen,
LLONG value,
int base,
int min,
int max,
int flags)
{
int signvalue = 0;
unsigned long uvalue;
unsigned LLONG uvalue;
char convert[20];
int place = 0;
int spadlen = 0; /* amount to space pad */
int zpadlen = 0; /* amount to zero pad */
int spadlen = 0;
int zpadlen = 0;
int caps = 0;
if (max < 0)
max = 0;
uvalue = value;
if(!(flags & DP_F_UNSIGNED))
{
if( value < 0 ) {
if (!(flags & DP_F_UNSIGNED)) {
if (value < 0) {
signvalue = '-';
uvalue = -value;
}
else
if (flags & DP_F_PLUS) /* Do a sign (+/i) */
} else if (flags & DP_F_PLUS)
signvalue = '+';
else
if (flags & DP_F_SPACE)
else if (flags & DP_F_SPACE)
signvalue = ' ';
}
if (flags & DP_F_UP) caps = 1; /* Should characters be upper case? */
if (flags & DP_F_UP)
caps = 1;
do {
convert[place++] =
(caps? "0123456789ABCDEF":"0123456789abcdef")
[uvalue % (unsigned)base ];
uvalue = (uvalue / (unsigned)base );
} while(uvalue && (place < 20));
if (place == 20) place--;
(caps ? "0123456789ABCDEF" : "0123456789abcdef")
[uvalue % (unsigned) base];
uvalue = (uvalue / (unsigned) base);
} while (uvalue && (place < 20));
if (place == 20)
place--;
convert[place] = 0;
zpadlen = max - place;
spadlen = min - MAX (max, place) - (signvalue ? 1 : 0);
if (zpadlen < 0) zpadlen = 0;
if (spadlen < 0) spadlen = 0;
if (flags & DP_F_ZERO)
{
spadlen = min - MAX(max, place) - (signvalue ? 1 : 0);
if (zpadlen < 0)
zpadlen = 0;
if (spadlen < 0)
spadlen = 0;
if (flags & DP_F_ZERO) {
zpadlen = MAX(zpadlen, spadlen);
spadlen = 0;
}
if (flags & DP_F_MINUS)
spadlen = -spadlen; /* Left Justifty */
spadlen = -spadlen;
#ifdef DEBUG_SNPRINTF
dprint (1, (debugfile, "zpad: %d, spad: %d, min: %d, max: %d, place: %d\n",
zpadlen, spadlen, min, max, place));
#endif
/* Spaces */
while (spadlen > 0)
{
dopr_outch (buffer, currlen, maxlen, ' ');
/* spaces */
while (spadlen > 0) {
dopr_outch(buffer, currlen, maxlen, ' ');
--spadlen;
}
/* Sign */
/* sign */
if (signvalue)
dopr_outch (buffer, currlen, maxlen, signvalue);
dopr_outch(buffer, currlen, maxlen, signvalue);
/* Zeros */
if (zpadlen > 0)
{
while (zpadlen > 0)
{
dopr_outch (buffer, currlen, maxlen, '0');
/* zeros */
if (zpadlen > 0) {
while (zpadlen > 0) {
dopr_outch(buffer, currlen, maxlen, '0');
--zpadlen;
}
}
/* Digits */
/* digits */
while (place > 0)
dopr_outch (buffer, currlen, maxlen, convert[--place]);
dopr_outch(buffer, currlen, maxlen, convert[--place]);
/* Left Justified spaces */
/* left justified spaces */
while (spadlen < 0) {
dopr_outch (buffer, currlen, maxlen, ' ');
dopr_outch(buffer, currlen, maxlen, ' ');
++spadlen;
}
return;
}
static long double abs_val (long double value)
static LDOUBLE
abs_val(LDOUBLE value)
{
long double result = value;
LDOUBLE result = value;
if (value < 0)
result = -value;
return result;
}
static long double pow10 (int exp)
static LDOUBLE
pow10(int exp)
{
long double result = 1;
while (exp)
{
LDOUBLE result = 1;
while (exp) {
result *= 10;
exp--;
}
return result;
}
static long round (long double value)
static long
round(LDOUBLE value)
{
long intpart;
intpart = value;
intpart = (long) value;
value = value - intpart;
if (value >= 0.5)
intpart++;
return intpart;
}
static void fmtfp (char *buffer, size_t *currlen, size_t maxlen,
long double fvalue, int min, int max, int flags)
static void
fmtfp(
char *buffer,
size_t *currlen,
size_t maxlen,
LDOUBLE fvalue,
int min,
int max,
int flags)
{
int signvalue = 0;
long double ufvalue;
LDOUBLE ufvalue;
char iconvert[20];
char fconvert[20];
int iplace = 0;
int fplace = 0;
int padlen = 0; /* amount to pad */
int padlen = 0;
int zpadlen = 0;
int caps = 0;
long intpart;
long fracpart;
/*
* AIX manpage says the default is 0, but Solaris says the default
* is 6, and sprintf on AIX defaults to 6
*/
if (max < 0)
max = 6;
ufvalue = abs_val (fvalue);
ufvalue = abs_val(fvalue);
if (fvalue < 0)
signvalue = '-';
else
if (flags & DP_F_PLUS) /* Do a sign (+/i) */
else if (flags & DP_F_PLUS)
signvalue = '+';
else
if (flags & DP_F_SPACE)
else if (flags & DP_F_SPACE)
signvalue = ' ';
#if 0
if (flags & DP_F_UP) caps = 1; /* Should characters be upper case? */
#endif
intpart = (long)ufvalue;
intpart = ufvalue;
/*
* Sorry, we only support 9 digits past the decimal because of our
* conversion method
*/
/* sorry, we only support 9 digits past the decimal because of our
conversion method */
if (max > 9)
max = 9;
/* We "cheat" by converting the fractional part to integer by
* multiplying by a factor of 10
*/
fracpart = round ((pow10 (max)) * (ufvalue - intpart));
/* we "cheat" by converting the fractional part to integer by
multiplying by a factor of 10 */
fracpart = round((pow10(max)) * (ufvalue - intpart));
if (fracpart >= pow10 (max))
{
if (fracpart >= pow10(max)) {
intpart++;
fracpart -= pow10 (max);
fracpart -= pow10(max);
}
#ifdef DEBUG_SNPRINTF
dprint (1, (debugfile, "fmtfp: %f =? %d.%d\n", fvalue, intpart, fracpart));
#endif
/* Convert integer part */
/* convert integer part */
do {
iconvert[iplace++] =
(caps? "0123456789ABCDEF":"0123456789abcdef")[intpart % 10];
(caps ? "0123456789ABCDEF"
: "0123456789abcdef")[intpart % 10];
intpart = (intpart / 10);
} while(intpart && (iplace < 20));
if (iplace == 20) iplace--;
} while (intpart && (iplace < 20));
if (iplace == 20)
iplace--;
iconvert[iplace] = 0;
/* Convert fractional part */
/* convert fractional part */
do {
fconvert[fplace++] =
(caps? "0123456789ABCDEF":"0123456789abcdef")[fracpart % 10];
(caps ? "0123456789ABCDEF"
: "0123456789abcdef")[fracpart % 10];
fracpart = (fracpart / 10);
} while(fracpart && (fplace < 20));
if (fplace == 20) fplace--;
} while (fracpart && (fplace < 20));
if (fplace == 20)
fplace--;
fconvert[fplace] = 0;
/* -1 for decimal point, another -1 if we are printing a sign */
@@ -643,57 +651,58 @@ static void fmtfp (char *buffer, size_t *currlen, size_t maxlen,
if (padlen < 0)
padlen = 0;
if (flags & DP_F_MINUS)
padlen = -padlen; /* Left Justifty */
padlen = -padlen;
if ((flags & DP_F_ZERO) && (padlen > 0))
{
if (signvalue)
{
dopr_outch (buffer, currlen, maxlen, signvalue);
if ((flags & DP_F_ZERO) && (padlen > 0)) {
if (signvalue) {
dopr_outch(buffer, currlen, maxlen, signvalue);
--padlen;
signvalue = 0;
}
while (padlen > 0)
{
dopr_outch (buffer, currlen, maxlen, '0');
while (padlen > 0) {
dopr_outch(buffer, currlen, maxlen, '0');
--padlen;
}
}
while (padlen > 0)
{
dopr_outch (buffer, currlen, maxlen, ' ');
while (padlen > 0) {
dopr_outch(buffer, currlen, maxlen, ' ');
--padlen;
}
if (signvalue)
dopr_outch (buffer, currlen, maxlen, signvalue);
dopr_outch(buffer, currlen, maxlen, signvalue);
while (iplace > 0)
dopr_outch (buffer, currlen, maxlen, iconvert[--iplace]);
dopr_outch(buffer, currlen, maxlen, iconvert[--iplace]);
/*
* Decimal point. This should probably use locale to find the correct
* char to print out.
*/
dopr_outch (buffer, currlen, maxlen, '.');
if (max > 0) {
dopr_outch(buffer, currlen, maxlen, '.');
while (fplace > 0)
dopr_outch (buffer, currlen, maxlen, fconvert[--fplace]);
while (zpadlen > 0)
{
dopr_outch (buffer, currlen, maxlen, '0');
dopr_outch(buffer, currlen, maxlen, fconvert[--fplace]);
}
while (zpadlen > 0) {
dopr_outch(buffer, currlen, maxlen, '0');
--zpadlen;
}
while (padlen < 0)
{
dopr_outch (buffer, currlen, maxlen, ' ');
while (padlen < 0) {
dopr_outch(buffer, currlen, maxlen, ' ');
++padlen;
}
}
static void dopr_outch (char *buffer, size_t *currlen, size_t maxlen, char c)
static void
dopr_outch(
char *buffer,
size_t *currlen,
size_t maxlen,
int c)
{
if (*currlen < maxlen)
buffer[(*currlen)++] = c;
buffer[(*currlen)++] = (char)c;
return;
}