| /* |
| * Copyright Patrick Powell 1995 |
| * 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 |
| */ |
| |
| /************************************************************** |
| * 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. |
| * |
| * Andrew Tridgell (tridge@samba.org) Oct 1998 |
| * fixed handling of %.0f |
| * added test for HAVE_LONG_DOUBLE |
| * |
| * tridge@samba.org, idra@samba.org, April 2001 |
| * got rid of fcvt code (twas buggy and made testing harder) |
| * added C99 semantics |
| * |
| * date: 2002/12/19 19:56:31; author: herb; state: Exp; lines: +2 -0 |
| * actually print args for %g and %e |
| * |
| * date: 2002/06/03 13:37:52; author: jmcd; state: Exp; lines: +8 -0 |
| * Since includes.h isn't included here, VA_COPY has to be defined here. I don't |
| * see any include file that is guaranteed to be here, so I'm defining it |
| * locally. Fixes AIX and Solaris builds. |
| * |
| * date: 2002/06/03 03:07:24; author: tridge; state: Exp; lines: +5 -13 |
| * put the ifdef for HAVE_VA_COPY in one place rather than in lots of |
| * functions |
| * |
| * date: 2002/05/17 14:51:22; author: jmcd; state: Exp; lines: +21 -4 |
| * Fix usage of va_list passed as an arg. Use __va_copy before using it |
| * when it exists. |
| * |
| * date: 2002/04/16 22:38:04; author: idra; state: Exp; lines: +20 -14 |
| * Fix incorrect zpadlen handling in fmtfp. |
| * Thanks to Ollie Oldham <ollie.oldham@metro-optix.com> for spotting it. |
| * few mods to make it easier to compile the tests. |
| * addedd the "Ollie" test to the floating point ones. |
| * |
| * Martin Pool (mbp@samba.org) April 2003 |
| * Remove NO_CONFIG_H so that the test case can be built within a source |
| * tree with less trouble. |
| * Remove unnecessary SAFE_FREE() definition. |
| * |
| * Martin Pool (mbp@samba.org) May 2003 |
| * Put in a prototype for dummy_snprintf() to quiet compiler warnings. |
| * |
| * Move #endif to make sure VA_COPY, LDOUBLE, etc are defined even |
| * if the C library has some snprintf functions already. |
| **************************************************************/ |
| |
| #include "includes.h" |
| |
| RCSID("$Id: bsd-snprintf.c,v 1.12 2006/03/18 13:07:07 dtucker Exp $"); |
| |
| #if defined(BROKEN_SNPRINTF) /* For those with broken snprintf() */ |
| # undef HAVE_SNPRINTF |
| # undef HAVE_VSNPRINTF |
| #endif |
| |
| #ifndef VA_COPY |
| # ifdef HAVE_VA_COPY |
| # define VA_COPY(dest, src) va_copy(dest, src) |
| # else |
| # ifdef HAVE___VA_COPY |
| # define VA_COPY(dest, src) __va_copy(dest, src) |
| # else |
| # define VA_COPY(dest, src) (dest) = (src) |
| # endif |
| # endif |
| #endif |
| |
| #if !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF) |
| |
| #ifdef HAVE_LONG_DOUBLE |
| # define LDOUBLE long double |
| #else |
| # define LDOUBLE double |
| #endif |
| |
| #ifdef HAVE_LONG_LONG |
| # define LLONG long long |
| #else |
| # define LLONG long |
| #endif |
| |
| /* |
| * 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_LLONG 4 |
| |
| #define char_to_int(p) ((p)- '0') |
| #ifndef MAX |
| # define MAX(p,q) (((p) >= (q)) ? (p) : (q)) |
| #endif |
| |
| static size_t dopr(char *buffer, size_t maxlen, const char *format, |
| va_list args_in); |
| 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, |
| LLONG value, int base, 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); |
| static void dopr_outch(char *buffer, size_t *currlen, size_t maxlen, char c); |
| |
| static size_t dopr(char *buffer, size_t maxlen, const char *format, va_list args_in) |
| { |
| char ch; |
| LLONG value; |
| LDOUBLE fvalue; |
| char *strvalue; |
| int min; |
| int max; |
| int state; |
| int flags; |
| int cflags; |
| size_t currlen; |
| va_list args; |
| |
| VA_COPY(args, args_in); |
| |
| state = DP_S_DEFAULT; |
| currlen = flags = cflags = min = 0; |
| max = -1; |
| ch = *format++; |
| |
| while (state != DP_S_DONE) { |
| if (ch == '\0') |
| 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') { /* It's a long long */ |
| cflags = DP_C_LLONG; |
| 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_LLONG) |
| value = va_arg (args, LLONG); |
| 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 = (long)va_arg (args, unsigned long int); |
| else if (cflags == DP_C_LLONG) |
| value = (long)va_arg (args, unsigned LLONG); |
| else |
| value = (long)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 = (long)va_arg (args, unsigned long int); |
| else if (cflags == DP_C_LLONG) |
| value = (LLONG)va_arg (args, unsigned LLONG); |
| else |
| value = (long)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 = (long)va_arg (args, unsigned long int); |
| else if (cflags == DP_C_LLONG) |
| value = (LLONG)va_arg (args, unsigned LLONG); |
| else |
| value = (long)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, LDOUBLE); |
| 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, LDOUBLE); |
| else |
| fvalue = va_arg (args, double); |
| fmtfp (buffer, &currlen, maxlen, fvalue, min, max, flags); |
| break; |
| case 'G': |
| flags |= DP_F_UP; |
| case 'g': |
| if (cflags == DP_C_LDOUBLE) |
| fvalue = va_arg (args, LDOUBLE); |
| else |
| fvalue = va_arg (args, double); |
| fmtfp (buffer, &currlen, maxlen, fvalue, min, max, flags); |
| break; |
| case 'c': |
| dopr_outch (buffer, &currlen, maxlen, va_arg (args, int)); |
| break; |
| case 's': |
| strvalue = va_arg (args, char *); |
| if (!strvalue) strvalue = "(NULL)"; |
| if (max == -1) { |
| max = strlen(strvalue); |
| } |
| if (min > 0 && max >= 0 && min > max) max = min; |
| 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 = (long int)currlen; |
| } else if (cflags == DP_C_LLONG) { |
| LLONG *num; |
| num = va_arg (args, LLONG *); |
| *num = (LLONG)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 (maxlen != 0) { |
| if (currlen < maxlen - 1) |
| buffer[currlen] = '\0'; |
| else if (maxlen > 0) |
| buffer[maxlen - 1] = '\0'; |
| } |
| |
| return currlen; |
| } |
| |
| 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; |
| |
| #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++); |
| ++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, |
| LLONG 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) |
| dopr_outch (buffer, currlen, maxlen, convert[--place]); |
| |
| /* Left Justified spaces */ |
| while (spadlen < 0) { |
| dopr_outch (buffer, currlen, maxlen, ' '); |
| ++spadlen; |
| } |
| } |
| |
| static LDOUBLE abs_val(LDOUBLE value) |
| { |
| LDOUBLE result = value; |
| |
| if (value < 0) |
| result = -value; |
| |
| return result; |
| } |
| |
| static LDOUBLE POW10(int exp) |
| { |
| LDOUBLE result = 1; |
| |
| while (exp) { |
| result *= 10; |
| exp--; |
| } |
| |
| 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 void 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) |
| 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) |
| dopr_outch (buffer, currlen, maxlen, fconvert[--fplace]); |
| } |
| |
| 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; |
| } |
| (*currlen)++; |
| } |
| #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 |
| |