789 lines
19 KiB
C
789 lines
19 KiB
C
/*
|
|
* This file taken from openbsd-compat of OpenSSH 3.1. It is only used
|
|
* if your operating system does not provide snprintf() or vsnprintf().
|
|
*
|
|
* --- 8< --- OpenSSH LICENSE --- 8< ---
|
|
* Remaining components of the software are provided under a standard
|
|
* 2-term BSD licence with the following names as copyright holders:
|
|
*
|
|
* Markus Friedl
|
|
* Theo de Raadt
|
|
* Niels Provos
|
|
* Dug Song
|
|
* Aaron Campbell
|
|
* Damien Miller
|
|
* Kevin Steves
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
* --- 8< --- OpenSSH LICENSE --- 8< ---
|
|
*/
|
|
|
|
/**************************************************************
|
|
* Original:
|
|
* Patrick Powell Tue Apr 11 09:48:21 PDT 1995
|
|
* A bombproof version of doprnt (dopr) included.
|
|
* Sigh. This sort of thing is always nasty do deal with. Note that
|
|
* the version here does not include floating point...
|
|
*
|
|
* snprintf() is used instead of sprintf() as it does limit checks
|
|
* for string length. This covers a nasty loophole.
|
|
*
|
|
* The other functions are there to prevent NULL pointers from
|
|
* causing nast effects.
|
|
*
|
|
* More Recently:
|
|
* Brandon Long <blong@fiction.net> 9/15/96 for mutt 0.43
|
|
* This was ugly. It is still ugly. I opted out of floating point
|
|
* numbers, but the formatter understands just about everything
|
|
* from the normal C string format, at least as far as I can tell from
|
|
* the Solaris 2.5 printf(3S) man page.
|
|
*
|
|
* Brandon Long <blong@fiction.net> 10/22/97 for mutt 0.87.1
|
|
* Ok, added some minimal floating point support, which means this
|
|
* probably requires libm on most operating systems. Don't yet
|
|
* support the exponent (e,E) and sigfig (g,G). Also, fmtint()
|
|
* was pretty badly broken, it just wasn't being exercised in ways
|
|
* which showed it, so that's been fixed. Also, formated the code
|
|
* to mutt conventions, and removed dead code left over from the
|
|
* original. Also, there is now a builtin-test, just compile with:
|
|
* gcc -DTEST_SNPRINTF -o snprintf snprintf.c -lm
|
|
* and run snprintf for results.
|
|
*
|
|
* Thomas Roessler <roessler@guug.de> 01/27/98 for mutt 0.89i
|
|
* The PGP code was using unsigned hexadecimal formats.
|
|
* Unfortunately, unsigned formats simply didn't work.
|
|
*
|
|
* Michael Elkins <me@cs.hmc.edu> 03/05/98 for mutt 0.90.8
|
|
* The original code assumed that both snprintf() and vsnprintf() were
|
|
* missing. Some systems only have snprintf() but not vsnprintf(), so
|
|
* the code is now broken down under HAVE_SNPRINTF and HAVE_VSNPRINTF.
|
|
*
|
|
* Ben Lindstrom <mouring@eviladmin.org> 09/27/00 for OpenSSH
|
|
* Welcome to the world of %lld and %qd support. With other
|
|
* long long support. This is needed for sftp-server to work
|
|
* right.
|
|
*
|
|
* Ben Lindstrom <mouring@eviladmin.org> 02/12/01 for OpenSSH
|
|
* Removed all hint of VARARGS stuff and banished it to the void,
|
|
* and did a bit of KNF style work to make things a bit more
|
|
* acceptable. Consider stealing from mutt or enlightenment.
|
|
**************************************************************/
|
|
|
|
#if 0
|
|
#include "includes.h"
|
|
|
|
RCSID("$Id: bsd-snprintf.c,v 1.1 2002/04/16 02:22:12 greerga Exp $");
|
|
#else
|
|
# include "conf.h"
|
|
# include "sysdep.h"
|
|
# define MAX(a, b) ((a) < (b) ? (b) : (a))
|
|
#endif
|
|
|
|
#if defined(BROKEN_SNPRINTF) /* For those with broken snprintf() */
|
|
# undef HAVE_SNPRINTF
|
|
# undef HAVE_VSNPRINTF
|
|
#endif
|
|
|
|
#if !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF)
|
|
|
|
static void
|
|
dopr(char *buffer, size_t maxlen, const char *format, va_list args);
|
|
|
|
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
|
|
*/
|
|
|
|
/* format read states */
|
|
#define DP_S_DEFAULT 0
|
|
#define DP_S_FLAGS 1
|
|
#define DP_S_MIN 2
|
|
#define DP_S_DOT 3
|
|
#define DP_S_MAX 4
|
|
#define DP_S_MOD 5
|
|
#define DP_S_CONV 6
|
|
#define DP_S_DONE 7
|
|
|
|
/* format flags - Bits */
|
|
#define DP_F_MINUS (1 << 0)
|
|
#define DP_F_PLUS (1 << 1)
|
|
#define DP_F_SPACE (1 << 2)
|
|
#define DP_F_NUM (1 << 3)
|
|
#define DP_F_ZERO (1 << 4)
|
|
#define DP_F_UP (1 << 5)
|
|
#define DP_F_UNSIGNED (1 << 6)
|
|
|
|
/* Conversion Flags */
|
|
#define DP_C_SHORT 1
|
|
#define DP_C_LONG 2
|
|
#define DP_C_LDOUBLE 3
|
|
#define DP_C_LONG_LONG 4
|
|
|
|
#define char_to_int(p) (p - '0')
|
|
#define abs_val(p) (p < 0 ? -p : p)
|
|
|
|
|
|
static void
|
|
dopr(char *buffer, size_t maxlen, const char *format, va_list args)
|
|
{
|
|
char *strvalue;
|
|
char ch;
|
|
long value;
|
|
long double fvalue;
|
|
int min = 0;
|
|
int max = -1;
|
|
int state = DP_S_DEFAULT;
|
|
int flags = 0;
|
|
int cflags = 0;
|
|
size_t currlen = 0;
|
|
|
|
ch = *format++;
|
|
|
|
while (state != DP_S_DONE) {
|
|
if ((ch == '\0') || (currlen >= maxlen))
|
|
state = DP_S_DONE;
|
|
|
|
switch(state) {
|
|
case DP_S_DEFAULT:
|
|
if (ch == '%')
|
|
state = DP_S_FLAGS;
|
|
else
|
|
dopr_outch(buffer, &currlen, maxlen, ch);
|
|
ch = *format++;
|
|
break;
|
|
case DP_S_FLAGS:
|
|
switch (ch) {
|
|
case '-':
|
|
flags |= DP_F_MINUS;
|
|
ch = *format++;
|
|
break;
|
|
case '+':
|
|
flags |= DP_F_PLUS;
|
|
ch = *format++;
|
|
break;
|
|
case ' ':
|
|
flags |= DP_F_SPACE;
|
|
ch = *format++;
|
|
break;
|
|
case '#':
|
|
flags |= DP_F_NUM;
|
|
ch = *format++;
|
|
break;
|
|
case '0':
|
|
flags |= DP_F_ZERO;
|
|
ch = *format++;
|
|
break;
|
|
default:
|
|
state = DP_S_MIN;
|
|
break;
|
|
}
|
|
break;
|
|
case DP_S_MIN:
|
|
if (isdigit((unsigned char)ch)) {
|
|
min = 10*min + char_to_int (ch);
|
|
ch = *format++;
|
|
} else if (ch == '*') {
|
|
min = va_arg (args, int);
|
|
ch = *format++;
|
|
state = DP_S_DOT;
|
|
} else
|
|
state = DP_S_DOT;
|
|
break;
|
|
case DP_S_DOT:
|
|
if (ch == '.') {
|
|
state = DP_S_MAX;
|
|
ch = *format++;
|
|
} else
|
|
state = DP_S_MOD;
|
|
break;
|
|
case DP_S_MAX:
|
|
if (isdigit((unsigned char)ch)) {
|
|
if (max < 0)
|
|
max = 0;
|
|
max = 10*max + char_to_int(ch);
|
|
ch = *format++;
|
|
} else if (ch == '*') {
|
|
max = va_arg (args, int);
|
|
ch = *format++;
|
|
state = DP_S_MOD;
|
|
} else
|
|
state = DP_S_MOD;
|
|
break;
|
|
case DP_S_MOD:
|
|
switch (ch) {
|
|
case 'h':
|
|
cflags = DP_C_SHORT;
|
|
ch = *format++;
|
|
break;
|
|
case 'l':
|
|
cflags = DP_C_LONG;
|
|
ch = *format++;
|
|
if (ch == 'l') {
|
|
cflags = DP_C_LONG_LONG;
|
|
ch = *format++;
|
|
}
|
|
break;
|
|
case 'q':
|
|
cflags = DP_C_LONG_LONG;
|
|
ch = *format++;
|
|
break;
|
|
case 'L':
|
|
cflags = DP_C_LDOUBLE;
|
|
ch = *format++;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
state = DP_S_CONV;
|
|
break;
|
|
case DP_S_CONV:
|
|
switch (ch) {
|
|
case 'd':
|
|
case 'i':
|
|
if (cflags == DP_C_SHORT)
|
|
value = va_arg(args, int);
|
|
else if (cflags == DP_C_LONG)
|
|
value = va_arg(args, long int);
|
|
else if (cflags == DP_C_LONG_LONG)
|
|
value = va_arg (args, long long);
|
|
else
|
|
value = va_arg (args, int);
|
|
fmtint(buffer, &currlen, maxlen, value, 10, min, max, flags);
|
|
break;
|
|
case 'o':
|
|
flags |= DP_F_UNSIGNED;
|
|
if (cflags == DP_C_SHORT)
|
|
value = va_arg(args, unsigned int);
|
|
else if (cflags == DP_C_LONG)
|
|
value = va_arg(args, unsigned long int);
|
|
else if (cflags == DP_C_LONG_LONG)
|
|
value = va_arg(args, unsigned long long);
|
|
else
|
|
value = va_arg(args, unsigned int);
|
|
fmtint(buffer, &currlen, maxlen, value, 8, min, max, flags);
|
|
break;
|
|
case 'u':
|
|
flags |= DP_F_UNSIGNED;
|
|
if (cflags == DP_C_SHORT)
|
|
value = va_arg(args, unsigned int);
|
|
else if (cflags == DP_C_LONG)
|
|
value = va_arg(args, unsigned long int);
|
|
else if (cflags == DP_C_LONG_LONG)
|
|
value = va_arg(args, unsigned long long);
|
|
else
|
|
value = va_arg(args, unsigned int);
|
|
fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
|
|
break;
|
|
case 'X':
|
|
flags |= DP_F_UP;
|
|
case 'x':
|
|
flags |= DP_F_UNSIGNED;
|
|
if (cflags == DP_C_SHORT)
|
|
value = va_arg(args, unsigned int);
|
|
else if (cflags == DP_C_LONG)
|
|
value = va_arg(args, unsigned long int);
|
|
else if (cflags == DP_C_LONG_LONG)
|
|
value = va_arg(args, unsigned long long);
|
|
else
|
|
value = va_arg(args, unsigned int);
|
|
fmtint(buffer, &currlen, maxlen, value, 16, min, max, flags);
|
|
break;
|
|
case 'f':
|
|
if (cflags == DP_C_LDOUBLE)
|
|
fvalue = va_arg(args, long double);
|
|
else
|
|
fvalue = va_arg(args, double);
|
|
/* um, floating point? */
|
|
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);
|
|
else
|
|
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);
|
|
else
|
|
fvalue = va_arg(args, double);
|
|
break;
|
|
case 'c':
|
|
dopr_outch(buffer, &currlen, maxlen, va_arg(args, int));
|
|
break;
|
|
case 's':
|
|
strvalue = va_arg(args, char *);
|
|
if (max < 0)
|
|
max = maxlen; /* ie, no max */
|
|
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);
|
|
break;
|
|
case 'n':
|
|
if (cflags == DP_C_SHORT) {
|
|
short int *num;
|
|
num = va_arg(args, short int *);
|
|
*num = currlen;
|
|
} else if (cflags == DP_C_LONG) {
|
|
long int *num;
|
|
num = va_arg(args, long int *);
|
|
*num = currlen;
|
|
} else if (cflags == DP_C_LONG_LONG) {
|
|
long long *num;
|
|
num = va_arg(args, long long *);
|
|
*num = currlen;
|
|
} else {
|
|
int *num;
|
|
num = va_arg(args, int *);
|
|
*num = currlen;
|
|
}
|
|
break;
|
|
case '%':
|
|
dopr_outch(buffer, &currlen, maxlen, ch);
|
|
break;
|
|
case 'w': /* not supported yet, treat as next char */
|
|
ch = *format++;
|
|
break;
|
|
default: /* Unknown, skip */
|
|
break;
|
|
}
|
|
ch = *format++;
|
|
state = DP_S_DEFAULT;
|
|
flags = cflags = min = 0;
|
|
max = -1;
|
|
break;
|
|
case DP_S_DONE:
|
|
break;
|
|
default: /* hmm? */
|
|
break; /* some picky compilers need this */
|
|
}
|
|
}
|
|
if (currlen < maxlen - 1)
|
|
buffer[currlen] = '\0';
|
|
else
|
|
buffer[maxlen - 1] = '\0';
|
|
}
|
|
|
|
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 cnt = 0;
|
|
|
|
if (value == 0)
|
|
value = "<NULL>";
|
|
|
|
for (strln = 0; value[strln]; ++strln); /* strlen */
|
|
padlen = min - strln;
|
|
if (padlen < 0)
|
|
padlen = 0;
|
|
if (flags & DP_F_MINUS)
|
|
padlen = -padlen; /* Left Justify */
|
|
|
|
while ((padlen > 0) && (cnt < max)) {
|
|
dopr_outch(buffer, currlen, maxlen, ' ');
|
|
--padlen;
|
|
++cnt;
|
|
}
|
|
while (*value && (cnt < max)) {
|
|
dopr_outch(buffer, currlen, maxlen, *value++);
|
|
++cnt;
|
|
}
|
|
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)
|
|
{
|
|
unsigned long uvalue;
|
|
char convert[20];
|
|
int signvalue = 0;
|
|
int place = 0;
|
|
int spadlen = 0; /* amount to space pad */
|
|
int zpadlen = 0; /* amount to zero pad */
|
|
int caps = 0;
|
|
|
|
if (max < 0)
|
|
max = 0;
|
|
|
|
uvalue = value;
|
|
|
|
if (!(flags & DP_F_UNSIGNED)) {
|
|
if (value < 0) {
|
|
signvalue = '-';
|
|
uvalue = -value;
|
|
} else if (flags & DP_F_PLUS) /* Do a sign (+/i) */
|
|
signvalue = '+';
|
|
else if (flags & DP_F_SPACE)
|
|
signvalue = ' ';
|
|
}
|
|
|
|
if (flags & DP_F_UP)
|
|
caps = 1; /* Should characters be upper case? */
|
|
|
|
do {
|
|
convert[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) {
|
|
zpadlen = MAX(zpadlen, spadlen);
|
|
spadlen = 0;
|
|
}
|
|
if (flags & DP_F_MINUS)
|
|
spadlen = -spadlen; /* Left Justifty */
|
|
|
|
|
|
/* Spaces */
|
|
while (spadlen > 0) {
|
|
dopr_outch(buffer, currlen, maxlen, ' ');
|
|
--spadlen;
|
|
}
|
|
|
|
/* Sign */
|
|
if (signvalue)
|
|
dopr_outch(buffer, currlen, maxlen, signvalue);
|
|
|
|
/* Zeros */
|
|
if (zpadlen > 0) {
|
|
while (zpadlen > 0) {
|
|
dopr_outch(buffer, currlen, maxlen, '0');
|
|
--zpadlen;
|
|
}
|
|
}
|
|
|
|
/* Digits */
|
|
while (place > 0)
|
|
dopr_outch(buffer, currlen, maxlen, convert[--place]);
|
|
|
|
/* Left Justified spaces */
|
|
while (spadlen < 0) {
|
|
dopr_outch (buffer, currlen, maxlen, ' ');
|
|
++spadlen;
|
|
}
|
|
}
|
|
|
|
static long double
|
|
pow10(int exp)
|
|
{
|
|
long double result = 1;
|
|
|
|
while (exp) {
|
|
result *= 10;
|
|
exp--;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static long
|
|
round(long double value)
|
|
{
|
|
long intpart = 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)
|
|
{
|
|
char iconvert[20];
|
|
char fconvert[20];
|
|
int signvalue = 0;
|
|
int iplace = 0;
|
|
int fplace = 0;
|
|
int padlen = 0; /* amount to pad */
|
|
int zpadlen = 0;
|
|
int caps = 0;
|
|
long intpart;
|
|
long fracpart;
|
|
long double ufvalue;
|
|
|
|
/*
|
|
* 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);
|
|
|
|
if (fvalue < 0)
|
|
signvalue = '-';
|
|
else if (flags & DP_F_PLUS) /* Do a sign (+/i) */
|
|
signvalue = '+';
|
|
else if (flags & DP_F_SPACE)
|
|
signvalue = ' ';
|
|
|
|
intpart = ufvalue;
|
|
|
|
/*
|
|
* 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));
|
|
|
|
if (fracpart >= pow10 (max)) {
|
|
intpart++;
|
|
fracpart -= pow10 (max);
|
|
}
|
|
|
|
/* Convert integer part */
|
|
do {
|
|
iconvert[iplace++] =
|
|
(caps? "0123456789ABCDEF":"0123456789abcdef")[intpart % 10];
|
|
intpart = (intpart / 10);
|
|
} while(intpart && (iplace < 20));
|
|
if (iplace == 20)
|
|
iplace--;
|
|
iconvert[iplace] = 0;
|
|
|
|
/* Convert fractional part */
|
|
do {
|
|
fconvert[fplace++] =
|
|
(caps? "0123456789ABCDEF":"0123456789abcdef")[fracpart % 10];
|
|
fracpart = (fracpart / 10);
|
|
} while(fracpart && (fplace < 20));
|
|
if (fplace == 20)
|
|
fplace--;
|
|
fconvert[fplace] = 0;
|
|
|
|
/* -1 for decimal point, another -1 if we are printing a sign */
|
|
padlen = min - iplace - max - 1 - ((signvalue) ? 1 : 0);
|
|
zpadlen = max - fplace;
|
|
if (zpadlen < 0)
|
|
zpadlen = 0;
|
|
if (padlen < 0)
|
|
padlen = 0;
|
|
if (flags & DP_F_MINUS)
|
|
padlen = -padlen; /* Left Justifty */
|
|
|
|
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');
|
|
--padlen;
|
|
}
|
|
}
|
|
while (padlen > 0) {
|
|
dopr_outch(buffer, currlen, maxlen, ' ');
|
|
--padlen;
|
|
}
|
|
if (signvalue)
|
|
dopr_outch(buffer, currlen, maxlen, signvalue);
|
|
|
|
while (iplace > 0)
|
|
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, '.');
|
|
|
|
while (fplace > 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, ' ');
|
|
++padlen;
|
|
}
|
|
}
|
|
|
|
static void
|
|
dopr_outch(char *buffer, size_t *currlen, size_t maxlen, char c)
|
|
{
|
|
if (*currlen < maxlen)
|
|
buffer[(*currlen)++] = c;
|
|
}
|
|
#endif /* !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF) */
|
|
|
|
#ifndef HAVE_VSNPRINTF
|
|
int
|
|
vsnprintf(char *str, size_t count, const char *fmt, va_list args)
|
|
{
|
|
str[0] = 0;
|
|
dopr(str, count, fmt, args);
|
|
|
|
return(strlen(str));
|
|
}
|
|
#endif /* !HAVE_VSNPRINTF */
|
|
|
|
#ifndef HAVE_SNPRINTF
|
|
int
|
|
snprintf(char *str,size_t count,const char *fmt,...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
(void) vsnprintf(str, count, fmt, ap);
|
|
va_end(ap);
|
|
|
|
return(strlen(str));
|
|
}
|
|
|
|
#ifdef TEST_SNPRINTF
|
|
int
|
|
main(void)
|
|
{
|
|
#define LONG_STRING 1024
|
|
char buf1[LONG_STRING];
|
|
char buf2[LONG_STRING];
|
|
char *fp_fmt[] = {
|
|
"%-1.5f",
|
|
"%1.5f",
|
|
"%123.9f",
|
|
"%10.5f",
|
|
"% 10.5f",
|
|
"%+22.9f",
|
|
"%+4.9f",
|
|
"%01.3f",
|
|
"%4f",
|
|
"%3.1f",
|
|
"%3.2f",
|
|
NULL
|
|
};
|
|
double fp_nums[] = {
|
|
-1.5,
|
|
134.21,
|
|
91340.2,
|
|
341.1234,
|
|
0203.9,
|
|
0.96,
|
|
0.996,
|
|
0.9996,
|
|
1.996,
|
|
4.136,
|
|
0
|
|
};
|
|
char *int_fmt[] = {
|
|
"%-1.5d",
|
|
"%1.5d",
|
|
"%123.9d",
|
|
"%5.5d",
|
|
"%10.5d",
|
|
"% 10.5d",
|
|
"%+22.33d",
|
|
"%01.3d",
|
|
"%4d",
|
|
"%lld",
|
|
"%qd",
|
|
NULL
|
|
};
|
|
long long int_nums[] = { -1, 134, 91340, 341, 0203, 0, 9999999 };
|
|
int x, y;
|
|
int fail = 0;
|
|
int num = 0;
|
|
|
|
printf("Testing snprintf format codes against system sprintf...\n");
|
|
|
|
for (x = 0; fp_fmt[x] != NULL ; x++) {
|
|
for (y = 0; fp_nums[y] != 0 ; y++) {
|
|
snprintf(buf1, sizeof (buf1), fp_fmt[x], fp_nums[y]);
|
|
sprintf (buf2, fp_fmt[x], fp_nums[y]);
|
|
if (strcmp (buf1, buf2)) {
|
|
printf("snprintf doesn't match Format: %s\n\t"
|
|
"snprintf = %s\n\tsprintf = %s\n",
|
|
fp_fmt[x], buf1, buf2);
|
|
fail++;
|
|
}
|
|
num++;
|
|
}
|
|
}
|
|
for (x = 0; int_fmt[x] != NULL ; x++) {
|
|
for (y = 0; int_nums[y] != 0 ; y++) {
|
|
snprintf(buf1, sizeof (buf1), int_fmt[x], int_nums[y]);
|
|
sprintf(buf2, int_fmt[x], int_nums[y]);
|
|
if (strcmp (buf1, buf2)) {
|
|
printf("snprintf doesn't match Format: %s\n\t"
|
|
"snprintf = %s\n\tsprintf = %s\n",
|
|
int_fmt[x], buf1, buf2);
|
|
fail++;
|
|
}
|
|
num++;
|
|
}
|
|
}
|
|
printf("%d tests failed out of %d.\n", fail, num);
|
|
return(0);
|
|
}
|
|
#endif /* SNPRINTF_TEST */
|
|
|
|
#endif /* !HAVE_SNPRINTF */
|