From 8b6d3138337997b266720518c7b0dfd42462f482 Mon Sep 17 00:00:00 2001 From: Ton Voon Date: Sat, 8 Mar 2003 01:59:31 +0000 Subject: Move snprintf into lib git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@382 f882894a-f735-0410-b71e-b25c423dba1c --- plugins/snprintf.c | 980 ----------------------------------------------------- 1 file changed, 980 deletions(-) delete mode 100644 plugins/snprintf.c (limited to 'plugins/snprintf.c') diff --git a/plugins/snprintf.c b/plugins/snprintf.c deleted file mode 100644 index 3de2a96f..00000000 --- a/plugins/snprintf.c +++ /dev/null @@ -1,980 +0,0 @@ -/* - * 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 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 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 01/27/98 for mutt 0.89i - * The PGP code was using unsigned hexadecimal formats. - * Unfortunately, unsigned formats simply didn't work. - * - * Michael Elkins 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 - * - **************************************************************/ - -#ifndef NO_CONFIG_H /* for some tests */ -#include "config.h" -#else -#define NULL 0 -#endif - -#ifdef TEST_SNPRINTF /* need math library headers for testing */ -#include -#endif - -#ifdef HAVE_STRING_H -#include -#endif - -#ifdef HAVE_STRINGS_H -#include -#endif -#ifdef HAVE_CTYPE_H -#include -#endif -#ifdef HAVE_SYS_TYPES_H -#include -#endif -#ifdef HAVE_STDARG_H -#include -#endif -#ifdef HAVE_STDLIB_H -#include -#endif - -#if defined(HAVE_SNPRINTF) && defined(HAVE_VSNPRINTF) && defined(HAVE_C99_VSNPRINTF) -/* only include stdio.h if we are not re-defining snprintf or vsnprintf */ -#include - /* make the compiler happy with an empty file */ - void dummy_snprintf(void) {} -#else - -#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 - -/* free memory if the pointer is valid and zero the pointer */ -#ifndef SAFE_FREE -#define SAFE_FREE(x) do { if ((x) != NULL) {free((x)); (x)=NULL;} } while(0) -#endif - -#ifndef VA_COPY -#ifdef HAVE_VA_COPY -#define VA_COPY(dest, src) __va_copy(dest, src) -#else -#define VA_COPY(dest, src) (dest) = (src) -#endif -#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, - long 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); - -/* - * 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) -{ - 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); - 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); - 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 = ""; - } - - 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) -{ - int signvalue = 0; - unsigned long 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 index; - 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); - index = (int) ((temp -intpart +0.05)* 10.0); - /* index = (int) (((double)(temp*0.1) -intpart +0.05) *10.0); */ - /* printf ("%llf, %f, %x\n", temp, intpart, index); */ - iconvert[iplace++] = - (caps? "0123456789ABCDEF":"0123456789abcdef")[index]; - } 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); - index = (int) ((temp -fracpart +0.05)* 10.0); - /* index = (int) ((((temp/10) -fracpart) +0.05) *10); */ - /* printf ("%lf, %lf, %ld\n", temp, fracpart, index); */ - fconvert[fplace++] = - (caps? "0123456789ABCDEF":"0123456789abcdef")[index]; - } 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)++; -} - -/* yes this really must be a ||. Don't muck with this (tridge) */ -#if !defined(HAVE_VSNPRINTF) || !defined(HAVE_C99_VSNPRINTF) - int vsnprintf (char *str, size_t count, const char *fmt, va_list args) -{ - return dopr(str, count, fmt, args); -} -#endif - -/* yes this really must be a ||. Don't muck wiith this (tridge) - * - * The logic for these two is that we need our own definition if the - * OS *either* has no definition of *sprintf, or if it does have one - * that doesn't work properly according to the autoconf test. Perhaps - * these should really be smb_snprintf to avoid conflicts with buggy - * linkers? -- mbp - */ -#if !defined(HAVE_SNPRINTF) /* || !defined(HAVE_C99_SNPRINTF) */ - int snprintf(char *str,size_t count,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 - -#endif - -#ifndef HAVE_VASPRINTF - int vasprintf(char **ptr, const char *format, va_list ap) -{ - int ret; - va_list ap2; - - VA_COPY(ap2, ap); - - ret = vsnprintf(NULL, 0, format, ap2); - if (ret <= 0) return ret; - - (*ptr) = (char *)malloc(ret+1); - if (!*ptr) return -1; - - VA_COPY(ap2, ap); - - ret = vsnprintf(*ptr, ret+1, format, ap2); - - return ret; -} -#endif - - -#ifndef HAVE_ASPRINTF - int asprintf(char **ptr, const char *format, ...) -{ - va_list ap; - int ret; - - *ptr = NULL; - va_start(ap, format); - ret = vasprintf(ptr, format, ap); - va_end(ap); - - return ret; -} -#endif - -#ifdef TEST_SNPRINTF - - int sprintf(char *str,const char *fmt,...); - - int main (void) -{ - char buf1[1024]; - char buf2[1024]; - char *fp_fmt[] = { - "%1.1f", - "%-1.5f", - "%1.5f", - "%123.9f", - "%10.5f", - "% 10.5f", - "%+22.9f", - "%+4.9f", - "%01.3f", - "%4f", - "%3.1f", - "%3.2f", - "%.0f", - "%f", - "-16.16f", - NULL - }; - double fp_nums[] = { 6442452944.1234, -1.5, 134.21, 91340.2, 341.1234, 0203.9, 0.96, 0.996, - 0.9996, 1.996, 4.136, 5.030201, 0}; - char *int_fmt[] = { - "%-1.5d", - "%1.5d", - "%123.9d", - "%5.5d", - "%10.5d", - "% 10.5d", - "%+22.33d", - "%01.3d", - "%4d", - "%d", - NULL - }; - long int_nums[] = { -1, 134, 91340, 341, 0203, 0}; - char *str_fmt[] = { - "10.5s", - "5.10s", - "10.1s", - "0.10s", - "10.0s", - "1.10s", - "%s", - "%.1s", - "%.10s", - "%10s", - NULL - }; - char *str_vals[] = {"hello", "a", "", "a longer string", NULL}; - int x, y; - int fail = 0; - int num = 0; - - printf ("Testing snprintf format codes against system sprintf...\n"); - - for (x = 0; fp_fmt[x] ; x++) { - for (y = 0; fp_nums[y] != 0 ; y++) { - int l1 = snprintf(NULL, 0, fp_fmt[x], fp_nums[y]); - int l2 = 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\tsnprintf = [%s]\n\t sprintf = [%s]\n", - fp_fmt[x], buf1, buf2); - fail++; - } - if (l1 != l2) { - printf("snprintf l1 != l2 (%d %d) %s\n", l1, l2, fp_fmt[x]); - fail++; - } - num++; - } - } - - for (x = 0; int_fmt[x] ; x++) { - for (y = 0; int_nums[y] != 0 ; y++) { - int l1 = snprintf(NULL, 0, int_fmt[x], int_nums[y]); - int l2 = 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\tsnprintf = [%s]\n\t sprintf = [%s]\n", - int_fmt[x], buf1, buf2); - fail++; - } - if (l1 != l2) { - printf("snprintf l1 != l2 (%d %d) %s\n", l1, l2, int_fmt[x]); - fail++; - } - num++; - } - } - - for (x = 0; str_fmt[x] ; x++) { - for (y = 0; str_vals[y] != 0 ; y++) { - int l1 = snprintf(NULL, 0, str_fmt[x], str_vals[y]); - int l2 = snprintf(buf1, sizeof(buf1), str_fmt[x], str_vals[y]); - sprintf (buf2, str_fmt[x], str_vals[y]); - if (strcmp (buf1, buf2)) { - printf("snprintf doesn't match Format: %s\n\tsnprintf = [%s]\n\t sprintf = [%s]\n", - str_fmt[x], buf1, buf2); - fail++; - } - if (l1 != l2) { - printf("snprintf l1 != l2 (%d %d) %s\n", l1, l2, str_fmt[x]); - fail++; - } - num++; - } - } - - printf ("%d tests failed out of %d.\n", fail, num); - - printf("seeing how many digits we support\n"); - { - double v0 = 0.12345678901234567890123456789012345678901; - for (x=0; x<100; x++) { - double p = pow(10, x); - double r = v0*p; - snprintf(buf1, sizeof(buf1), "%1.1f", r); - sprintf(buf2, "%1.1f", r); - if (strcmp(buf1, buf2)) { - printf("we seem to support %d digits\n", x-1); - break; - } - } - } - - return 0; -} -#endif /* SNPRINTF_TEST */ -- cgit v1.2.3