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881 lines
21 KiB
C
881 lines
21 KiB
C
/*
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* Copyright Patrick Powell 1995
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* This code is based on code written by Patrick Powell (papowell@astart.com)
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* It may be used for any purpose as long as this notice remains intact
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* on all source code distributions
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*/
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/**************************************************************
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* Original:
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* Patrick Powell Tue Apr 11 09:48:21 PDT 1995
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* A bombproof version of doprnt (dopr) included.
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* Sigh. This sort of thing is always nasty do deal with. Note that
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* the version here does not include floating point...
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*
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* snprintf() is used instead of sprintf() as it does limit checks
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* for string length. This covers a nasty loophole.
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*
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* The other functions are there to prevent NULL pointers from
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* causing nast effects.
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*
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* More Recently:
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* Brandon Long <blong@fiction.net> 9/15/96 for mutt 0.43
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* This was ugly. It is still ugly. I opted out of floating point
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* numbers, but the formatter understands just about everything
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* from the normal C string format, at least as far as I can tell from
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* the Solaris 2.5 printf(3S) man page.
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*
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* Brandon Long <blong@fiction.net> 10/22/97 for mutt 0.87.1
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* Ok, added some minimal floating point support, which means this
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* probably requires libm on most operating systems. Don't yet
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* support the exponent (e,E) and sigfig (g,G). Also, fmtint()
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* was pretty badly broken, it just wasn't being exercised in ways
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* which showed it, so that's been fixed. Also, formatted the code
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* to mutt conventions, and removed dead code left over from the
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* original. Also, there is now a builtin-test, just compile with:
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* gcc -DTEST_SNPRINTF -o snprintf snprintf.c -lm
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* and run snprintf for results.
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*
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* Thomas Roessler <roessler@guug.de> 01/27/98 for mutt 0.89i
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* The PGP code was using unsigned hexadecimal formats.
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* Unfortunately, unsigned formats simply didn't work.
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*
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* Michael Elkins <me@cs.hmc.edu> 03/05/98 for mutt 0.90.8
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* The original code assumed that both snprintf() and vsnprintf() were
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* missing. Some systems only have snprintf() but not vsnprintf(), so
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* the code is now broken down under HAVE_SNPRINTF and HAVE_VSNPRINTF.
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*
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* Andrew Tridgell (tridge@samba.org) Oct 1998
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* fixed handling of %.0f
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* added test for HAVE_LONG_DOUBLE
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*
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* tridge@samba.org, idra@samba.org, April 2001
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* got rid of fcvt code (twas buggy and made testing harder)
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* added C99 semantics
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*
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* date: 2002/12/19 19:56:31; author: herb; state: Exp; lines: +2 -0
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* actually print args for %g and %e
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*
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* date: 2002/06/03 13:37:52; author: jmcd; state: Exp; lines: +8 -0
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* Since includes.h isn't included here, VA_COPY has to be defined here. I don't
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* see any include file that is guaranteed to be here, so I'm defining it
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* locally. Fixes AIX and Solaris builds.
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*
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* date: 2002/06/03 03:07:24; author: tridge; state: Exp; lines: +5 -13
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* put the ifdef for HAVE_VA_COPY in one place rather than in lots of
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* functions
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*
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* date: 2002/05/17 14:51:22; author: jmcd; state: Exp; lines: +21 -4
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* Fix usage of va_list passed as an arg. Use __va_copy before using it
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* when it exists.
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*
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* date: 2002/04/16 22:38:04; author: idra; state: Exp; lines: +20 -14
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* Fix incorrect zpadlen handling in fmtfp.
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* Thanks to Ollie Oldham <ollie.oldham@metro-optix.com> for spotting it.
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* few mods to make it easier to compile the tests.
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* addedd the "Ollie" test to the floating point ones.
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*
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* Martin Pool (mbp@samba.org) April 2003
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* Remove NO_CONFIG_H so that the test case can be built within a source
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* tree with less trouble.
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* Remove unnecessary SAFE_FREE() definition.
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*
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* Martin Pool (mbp@samba.org) May 2003
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* Put in a prototype for dummy_snprintf() to quiet compiler warnings.
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*
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* Move #endif to make sure VA_COPY, LDOUBLE, etc are defined even
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* if the C library has some snprintf functions already.
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*
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* Damien Miller (djm@mindrot.org) Jan 2007
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* Fix integer overflows in return value.
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* Make formatting quite a bit faster by inlining dopr_outch()
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*
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**************************************************************/
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#include "includes.h"
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#if defined(BROKEN_SNPRINTF) /* For those with broken snprintf() */
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# undef HAVE_SNPRINTF
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# undef HAVE_VSNPRINTF
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#endif
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#if !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF)
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#include <ctype.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#include <errno.h>
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#ifdef HAVE_LONG_DOUBLE
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# define LDOUBLE long double
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#else
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# define LDOUBLE double
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#endif
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#ifdef HAVE_LONG_LONG
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# define LLONG long long
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#else
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# define LLONG long
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#endif
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/*
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* dopr(): poor man's version of doprintf
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*/
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/* format read states */
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#define DP_S_DEFAULT 0
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#define DP_S_FLAGS 1
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#define DP_S_MIN 2
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#define DP_S_DOT 3
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#define DP_S_MAX 4
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#define DP_S_MOD 5
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#define DP_S_CONV 6
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#define DP_S_DONE 7
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/* format flags - Bits */
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#define DP_F_MINUS (1 << 0)
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#define DP_F_PLUS (1 << 1)
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#define DP_F_SPACE (1 << 2)
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#define DP_F_NUM (1 << 3)
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#define DP_F_ZERO (1 << 4)
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#define DP_F_UP (1 << 5)
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#define DP_F_UNSIGNED (1 << 6)
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/* Conversion Flags */
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#define DP_C_SHORT 1
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#define DP_C_LONG 2
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#define DP_C_LDOUBLE 3
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#define DP_C_LLONG 4
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#define DP_C_SIZE 5
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#define DP_C_INTMAX 6
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#define char_to_int(p) ((p)- '0')
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#ifndef MAX
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# define MAX(p,q) (((p) >= (q)) ? (p) : (q))
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#endif
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#define DOPR_OUTCH(buf, pos, buflen, thechar) \
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do { \
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if (pos + 1 >= INT_MAX) { \
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errno = ERANGE; \
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return -1; \
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} \
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if (pos < buflen) \
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buf[pos] = thechar; \
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(pos)++; \
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} while (0)
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static int dopr(char *buffer, size_t maxlen, const char *format,
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va_list args_in);
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static int fmtstr(char *buffer, size_t *currlen, size_t maxlen,
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char *value, int flags, int min, int max);
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static int fmtint(char *buffer, size_t *currlen, size_t maxlen,
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intmax_t value, int base, int min, int max, int flags);
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static int fmtfp(char *buffer, size_t *currlen, size_t maxlen,
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LDOUBLE fvalue, int min, int max, int flags);
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static int
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dopr(char *buffer, size_t maxlen, const char *format, va_list args_in)
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{
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char ch;
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intmax_t value;
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LDOUBLE fvalue;
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char *strvalue;
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int min;
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int max;
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int state;
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int flags;
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int cflags;
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size_t currlen;
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va_list args;
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VA_COPY(args, args_in);
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state = DP_S_DEFAULT;
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currlen = flags = cflags = min = 0;
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max = -1;
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ch = *format++;
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while (state != DP_S_DONE) {
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if (ch == '\0')
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state = DP_S_DONE;
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switch(state) {
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case DP_S_DEFAULT:
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if (ch == '%')
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state = DP_S_FLAGS;
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else
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DOPR_OUTCH(buffer, currlen, maxlen, ch);
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ch = *format++;
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break;
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case DP_S_FLAGS:
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switch (ch) {
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case '-':
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flags |= DP_F_MINUS;
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ch = *format++;
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break;
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case '+':
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flags |= DP_F_PLUS;
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ch = *format++;
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break;
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case ' ':
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flags |= DP_F_SPACE;
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ch = *format++;
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break;
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case '#':
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flags |= DP_F_NUM;
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ch = *format++;
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break;
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case '0':
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flags |= DP_F_ZERO;
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ch = *format++;
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break;
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default:
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state = DP_S_MIN;
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break;
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}
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break;
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case DP_S_MIN:
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if (isdigit((unsigned char)ch)) {
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min = 10*min + char_to_int (ch);
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ch = *format++;
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} else if (ch == '*') {
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min = va_arg (args, int);
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ch = *format++;
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state = DP_S_DOT;
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} else {
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state = DP_S_DOT;
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}
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break;
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case DP_S_DOT:
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if (ch == '.') {
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state = DP_S_MAX;
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ch = *format++;
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} else {
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state = DP_S_MOD;
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}
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break;
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case DP_S_MAX:
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if (isdigit((unsigned char)ch)) {
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if (max < 0)
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max = 0;
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max = 10*max + char_to_int (ch);
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ch = *format++;
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} else if (ch == '*') {
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max = va_arg (args, int);
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ch = *format++;
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state = DP_S_MOD;
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} else {
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state = DP_S_MOD;
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}
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break;
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case DP_S_MOD:
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switch (ch) {
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case 'h':
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cflags = DP_C_SHORT;
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ch = *format++;
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break;
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case 'j':
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cflags = DP_C_INTMAX;
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ch = *format++;
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break;
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case 'l':
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cflags = DP_C_LONG;
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ch = *format++;
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if (ch == 'l') { /* It's a long long */
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cflags = DP_C_LLONG;
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ch = *format++;
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}
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break;
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case 'L':
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cflags = DP_C_LDOUBLE;
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ch = *format++;
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break;
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case 'z':
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cflags = DP_C_SIZE;
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ch = *format++;
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break;
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default:
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break;
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}
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state = DP_S_CONV;
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break;
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case DP_S_CONV:
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switch (ch) {
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case 'd':
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case 'i':
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if (cflags == DP_C_SHORT)
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value = va_arg (args, int);
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else if (cflags == DP_C_LONG)
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value = va_arg (args, long int);
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else if (cflags == DP_C_LLONG)
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value = va_arg (args, LLONG);
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else if (cflags == DP_C_SIZE)
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value = va_arg (args, ssize_t);
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else if (cflags == DP_C_INTMAX)
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value = va_arg (args, intmax_t);
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else
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value = va_arg (args, int);
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if (fmtint(buffer, &currlen, maxlen,
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value, 10, min, max, flags) == -1)
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return -1;
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break;
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case 'o':
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flags |= DP_F_UNSIGNED;
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if (cflags == DP_C_SHORT)
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value = va_arg (args, unsigned int);
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else if (cflags == DP_C_LONG)
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value = (long)va_arg (args, unsigned long int);
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else if (cflags == DP_C_LLONG)
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value = (long)va_arg (args, unsigned LLONG);
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else if (cflags == DP_C_SIZE)
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value = va_arg (args, size_t);
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#ifdef notyet
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else if (cflags == DP_C_INTMAX)
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value = va_arg (args, uintmax_t);
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#endif
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else
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value = (long)va_arg (args, unsigned int);
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if (fmtint(buffer, &currlen, maxlen, value,
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8, min, max, flags) == -1)
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return -1;
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break;
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case 'u':
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flags |= DP_F_UNSIGNED;
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if (cflags == DP_C_SHORT)
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value = va_arg (args, unsigned int);
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else if (cflags == DP_C_LONG)
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value = (long)va_arg (args, unsigned long int);
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else if (cflags == DP_C_LLONG)
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value = (LLONG)va_arg (args, unsigned LLONG);
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else if (cflags == DP_C_SIZE)
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value = va_arg (args, size_t);
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#ifdef notyet
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else if (cflags == DP_C_INTMAX)
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value = va_arg (args, uintmax_t);
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#endif
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else
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value = (long)va_arg (args, unsigned int);
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if (fmtint(buffer, &currlen, maxlen, value,
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10, min, max, flags) == -1)
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return -1;
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break;
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case 'X':
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flags |= DP_F_UP;
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case 'x':
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flags |= DP_F_UNSIGNED;
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if (cflags == DP_C_SHORT)
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value = va_arg (args, unsigned int);
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else if (cflags == DP_C_LONG)
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value = (long)va_arg (args, unsigned long int);
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else if (cflags == DP_C_LLONG)
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value = (LLONG)va_arg (args, unsigned LLONG);
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else if (cflags == DP_C_SIZE)
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value = va_arg (args, size_t);
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#ifdef notyet
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else if (cflags == DP_C_INTMAX)
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value = va_arg (args, uintmax_t);
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#endif
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else
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value = (long)va_arg (args, unsigned int);
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if (fmtint(buffer, &currlen, maxlen, value,
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16, min, max, flags) == -1)
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return -1;
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break;
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case 'f':
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if (cflags == DP_C_LDOUBLE)
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fvalue = va_arg (args, LDOUBLE);
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else
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fvalue = va_arg (args, double);
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if (fmtfp(buffer, &currlen, maxlen, fvalue,
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min, max, flags) == -1)
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return -1;
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break;
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case 'E':
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flags |= DP_F_UP;
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case 'e':
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if (cflags == DP_C_LDOUBLE)
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fvalue = va_arg (args, LDOUBLE);
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else
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fvalue = va_arg (args, double);
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if (fmtfp(buffer, &currlen, maxlen, fvalue,
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min, max, flags) == -1)
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return -1;
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break;
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case 'G':
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flags |= DP_F_UP;
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case 'g':
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if (cflags == DP_C_LDOUBLE)
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fvalue = va_arg (args, LDOUBLE);
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else
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fvalue = va_arg (args, double);
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if (fmtfp(buffer, &currlen, maxlen, fvalue,
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min, max, flags) == -1)
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return -1;
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break;
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case 'c':
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DOPR_OUTCH(buffer, currlen, maxlen,
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va_arg (args, int));
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break;
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case 's':
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strvalue = va_arg (args, char *);
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if (!strvalue) strvalue = "(NULL)";
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if (max == -1) {
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max = strlen(strvalue);
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}
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if (min > 0 && max >= 0 && min > max) max = min;
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if (fmtstr(buffer, &currlen, maxlen,
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strvalue, flags, min, max) == -1)
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return -1;
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break;
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case 'p':
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strvalue = va_arg (args, void *);
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if (fmtint(buffer, &currlen, maxlen,
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(long) strvalue, 16, min, max, flags) == -1)
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return -1;
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break;
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#if we_dont_want_this_in_openssh
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case 'n':
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if (cflags == DP_C_SHORT) {
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short int *num;
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num = va_arg (args, short int *);
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*num = currlen;
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} else if (cflags == DP_C_LONG) {
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long int *num;
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num = va_arg (args, long int *);
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*num = (long int)currlen;
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} else if (cflags == DP_C_LLONG) {
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LLONG *num;
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num = va_arg (args, LLONG *);
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*num = (LLONG)currlen;
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} else if (cflags == DP_C_SIZE) {
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ssize_t *num;
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num = va_arg (args, ssize_t *);
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*num = (ssize_t)currlen;
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} else if (cflags == DP_C_INTMAX) {
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intmax_t *num;
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num = va_arg (args, intmax_t *);
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*num = (intmax_t)currlen;
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} else {
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int *num;
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num = va_arg (args, int *);
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*num = currlen;
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}
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break;
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#endif
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case '%':
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DOPR_OUTCH(buffer, currlen, maxlen, ch);
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break;
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case 'w':
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/* not supported yet, treat as next char */
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ch = *format++;
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break;
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default:
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/* Unknown, skip */
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break;
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}
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ch = *format++;
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state = DP_S_DEFAULT;
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flags = cflags = min = 0;
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max = -1;
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break;
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case DP_S_DONE:
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break;
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default:
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/* hmm? */
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break; /* some picky compilers need this */
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}
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}
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if (maxlen != 0) {
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if (currlen < maxlen - 1)
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buffer[currlen] = '\0';
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else if (maxlen > 0)
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buffer[maxlen - 1] = '\0';
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}
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return currlen < INT_MAX ? (int)currlen : -1;
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}
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static int
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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;
|
|
|
|
#ifdef DEBUG_SNPRINTF
|
|
printf("fmtstr min=%d max=%d s=[%s]\n", min, max, value);
|
|
#endif
|
|
if (value == 0) {
|
|
value = "<NULL>";
|
|
}
|
|
|
|
for (strln = 0; strln < max && 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);
|
|
value++;
|
|
++cnt;
|
|
}
|
|
while ((padlen < 0) && (cnt < max)) {
|
|
DOPR_OUTCH(buffer, *currlen, maxlen, ' ');
|
|
++padlen;
|
|
++cnt;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Have to handle DP_F_NUM (ie 0x and 0 alternates) */
|
|
|
|
static int
|
|
fmtint(char *buffer, size_t *currlen, size_t maxlen,
|
|
intmax_t value, int base, int min, int max, int flags)
|
|
{
|
|
int signvalue = 0;
|
|
unsigned LLONG uvalue;
|
|
char convert[20];
|
|
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 */
|
|
|
|
#ifdef DEBUG_SNPRINTF
|
|
printf("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, ' ');
|
|
--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) {
|
|
--place;
|
|
DOPR_OUTCH(buffer, *currlen, maxlen, convert[place]);
|
|
}
|
|
|
|
/* Left Justified spaces */
|
|
while (spadlen < 0) {
|
|
DOPR_OUTCH(buffer, *currlen, maxlen, ' ');
|
|
++spadlen;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static LDOUBLE abs_val(LDOUBLE value)
|
|
{
|
|
LDOUBLE result = value;
|
|
|
|
if (value < 0)
|
|
result = -value;
|
|
|
|
return result;
|
|
}
|
|
|
|
static LDOUBLE POW10(int val)
|
|
{
|
|
LDOUBLE result = 1;
|
|
|
|
while (val) {
|
|
result *= 10;
|
|
val--;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static LLONG ROUND(LDOUBLE value)
|
|
{
|
|
LLONG intpart;
|
|
|
|
intpart = (LLONG)value;
|
|
value = value - intpart;
|
|
if (value >= 0.5) intpart++;
|
|
|
|
return intpart;
|
|
}
|
|
|
|
/* a replacement for modf that doesn't need the math library. Should
|
|
be portable, but slow */
|
|
static double my_modf(double x0, double *iptr)
|
|
{
|
|
int i;
|
|
long l;
|
|
double x = x0;
|
|
double f = 1.0;
|
|
|
|
for (i=0;i<100;i++) {
|
|
l = (long)x;
|
|
if (l <= (x+1) && l >= (x-1)) break;
|
|
x *= 0.1;
|
|
f *= 10.0;
|
|
}
|
|
|
|
if (i == 100) {
|
|
/*
|
|
* yikes! the number is beyond what we can handle.
|
|
* What do we do?
|
|
*/
|
|
(*iptr) = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (i != 0) {
|
|
double i2;
|
|
double ret;
|
|
|
|
ret = my_modf(x0-l*f, &i2);
|
|
(*iptr) = l*f + i2;
|
|
return ret;
|
|
}
|
|
|
|
(*iptr) = l;
|
|
return x - (*iptr);
|
|
}
|
|
|
|
|
|
static int
|
|
fmtfp (char *buffer, size_t *currlen, size_t maxlen,
|
|
LDOUBLE fvalue, int min, int max, int flags)
|
|
{
|
|
int signvalue = 0;
|
|
double ufvalue;
|
|
char iconvert[311];
|
|
char fconvert[311];
|
|
int iplace = 0;
|
|
int fplace = 0;
|
|
int padlen = 0; /* amount to pad */
|
|
int zpadlen = 0;
|
|
int caps = 0;
|
|
int idx;
|
|
double intpart;
|
|
double fracpart;
|
|
double temp;
|
|
|
|
/*
|
|
* 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 = ' ';
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
if (flags & DP_F_UP) caps = 1; /* Should characters be upper case? */
|
|
#endif
|
|
|
|
#if 0
|
|
if (max == 0) ufvalue += 0.5; /* if max = 0 we must round */
|
|
#endif
|
|
|
|
/*
|
|
* Sorry, we only support 16 digits past the decimal because of our
|
|
* conversion method
|
|
*/
|
|
if (max > 16)
|
|
max = 16;
|
|
|
|
/* We "cheat" by converting the fractional part to integer by
|
|
* multiplying by a factor of 10
|
|
*/
|
|
|
|
temp = ufvalue;
|
|
my_modf(temp, &intpart);
|
|
|
|
fracpart = ROUND((POW10(max)) * (ufvalue - intpart));
|
|
|
|
if (fracpart >= POW10(max)) {
|
|
intpart++;
|
|
fracpart -= POW10(max);
|
|
}
|
|
|
|
/* Convert integer part */
|
|
do {
|
|
temp = intpart*0.1;
|
|
my_modf(temp, &intpart);
|
|
idx = (int) ((temp -intpart +0.05)* 10.0);
|
|
/* idx = (int) (((double)(temp*0.1) -intpart +0.05) *10.0); */
|
|
/* printf ("%llf, %f, %x\n", temp, intpart, idx); */
|
|
iconvert[iplace++] =
|
|
(caps? "0123456789ABCDEF":"0123456789abcdef")[idx];
|
|
} while (intpart && (iplace < 311));
|
|
if (iplace == 311) iplace--;
|
|
iconvert[iplace] = 0;
|
|
|
|
/* Convert fractional part */
|
|
if (fracpart)
|
|
{
|
|
do {
|
|
temp = fracpart*0.1;
|
|
my_modf(temp, &fracpart);
|
|
idx = (int) ((temp -fracpart +0.05)* 10.0);
|
|
/* idx = (int) ((((temp/10) -fracpart) +0.05) *10); */
|
|
/* printf ("%lf, %lf, %ld\n", temp, fracpart, idx ); */
|
|
fconvert[fplace++] =
|
|
(caps? "0123456789ABCDEF":"0123456789abcdef")[idx];
|
|
} while(fracpart && (fplace < 311));
|
|
if (fplace == 311) 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) {
|
|
--iplace;
|
|
DOPR_OUTCH(buffer, *currlen, maxlen, iconvert[iplace]);
|
|
}
|
|
|
|
#ifdef DEBUG_SNPRINTF
|
|
printf("fmtfp: fplace=%d zpadlen=%d\n", fplace, zpadlen);
|
|
#endif
|
|
|
|
/*
|
|
* Decimal point. This should probably use locale to find the correct
|
|
* char to print out.
|
|
*/
|
|
if (max > 0) {
|
|
DOPR_OUTCH(buffer, *currlen, maxlen, '.');
|
|
|
|
while (zpadlen > 0) {
|
|
DOPR_OUTCH(buffer, *currlen, maxlen, '0');
|
|
--zpadlen;
|
|
}
|
|
|
|
while (fplace > 0) {
|
|
--fplace;
|
|
DOPR_OUTCH(buffer, *currlen, maxlen, fconvert[fplace]);
|
|
}
|
|
}
|
|
|
|
while (padlen < 0) {
|
|
DOPR_OUTCH(buffer, *currlen, maxlen, ' ');
|
|
++padlen;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif /* !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF) */
|
|
|
|
#if !defined(HAVE_VSNPRINTF)
|
|
int
|
|
vsnprintf (char *str, size_t count, const char *fmt, va_list args)
|
|
{
|
|
return dopr(str, count, fmt, args);
|
|
}
|
|
#endif
|
|
|
|
#if !defined(HAVE_SNPRINTF)
|
|
int
|
|
snprintf(char *str, size_t count, SNPRINTF_CONST char *fmt, ...)
|
|
{
|
|
size_t ret;
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
ret = vsnprintf(str, count, fmt, ap);
|
|
va_end(ap);
|
|
return ret;
|
|
}
|
|
#endif
|