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-rw-r--r--external/unbound/compat/snprintf.c1037
1 files changed, 0 insertions, 1037 deletions
diff --git a/external/unbound/compat/snprintf.c b/external/unbound/compat/snprintf.c
deleted file mode 100644
index 97cd7061f..000000000
--- a/external/unbound/compat/snprintf.c
+++ /dev/null
@@ -1,1037 +0,0 @@
-/* snprintf - compatibility implementation of snprintf, vsnprintf
- *
- * Copyright (c) 2013, NLnet Labs. All rights reserved.
- *
- * This software is open source.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 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.
- *
- * Neither the name of the NLNET LABS nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "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 COPYRIGHT
- * HOLDER OR CONTRIBUTORS 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.
- */
-
-#include "config.h"
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <errno.h>
-#ifdef HAVE_STDINT_H
-#include <stdint.h>
-#endif
-#include <limits.h>
-
-/* for test */
-/* #define SNPRINTF_TEST 1 */
-#ifdef SNPRINTF_TEST
-#define snprintf my_snprintf
-#define vsnprintf my_vsnprintf
-#endif /* SNPRINTF_TEST */
-
-int snprintf(char* str, size_t size, const char* format, ...);
-int vsnprintf(char* str, size_t size, const char* format, va_list arg);
-
-/**
- * Very portable snprintf implementation, limited in functionality,
- * esp. for %[capital] %[nonportable] and so on. Reduced float functionality,
- * mostly in formatting and range (e+-16), for %f and %g.
- *
- * %s, %d, %u, %i, %x, %c, %n and %% are fully supported.
- * This includes width, precision, flags 0- +, and *(arg for wid,prec).
- * %f, %g, %m, %p have reduced support, support for wid,prec,flags,*, but
- * less floating point range, no %e formatting for %g.
- */
-int snprintf(char* str, size_t size, const char* format, ...)
-{
- int r;
- va_list args;
- va_start(args, format);
- r = vsnprintf(str, size, format, args);
- va_end(args);
- return r;
-}
-
-/** add padding to string */
-static void
-print_pad(char** at, size_t* left, int* ret, char p, int num)
-{
- while(num--) {
- if(*left > 1) {
- *(*at)++ = p;
- (*left)--;
- }
- (*ret)++;
- }
-}
-
-/** get negative symbol, 0 if none */
-static char
-get_negsign(int negative, int plus, int space)
-{
- if(negative)
- return '-';
- if(plus)
- return '+';
- if(space)
- return ' ';
- return 0;
-}
-
-#define PRINT_DEC_BUFSZ 32 /* 20 is enough for 64 bit decimals */
-/** print decimal into buffer, returns length */
-static int
-print_dec(char* buf, int max, unsigned int value)
-{
- int i = 0;
- if(value == 0) {
- if(max > 0) {
- buf[0] = '0';
- i = 1;
- }
- } else while(value && i < max) {
- buf[i++] = '0' + value % 10;
- value /= 10;
- }
- return i;
-}
-
-/** print long decimal into buffer, returns length */
-static int
-print_dec_l(char* buf, int max, unsigned long value)
-{
- int i = 0;
- if(value == 0) {
- if(max > 0) {
- buf[0] = '0';
- i = 1;
- }
- } else while(value && i < max) {
- buf[i++] = '0' + value % 10;
- value /= 10;
- }
- return i;
-}
-
-/** print long decimal into buffer, returns length */
-static int
-print_dec_ll(char* buf, int max, unsigned long long value)
-{
- int i = 0;
- if(value == 0) {
- if(max > 0) {
- buf[0] = '0';
- i = 1;
- }
- } else while(value && i < max) {
- buf[i++] = '0' + value % 10;
- value /= 10;
- }
- return i;
-}
-
-/** print hex into buffer, returns length */
-static int
-print_hex(char* buf, int max, unsigned int value)
-{
- const char* h = "0123456789abcdef";
- int i = 0;
- if(value == 0) {
- if(max > 0) {
- buf[0] = '0';
- i = 1;
- }
- } else while(value && i < max) {
- buf[i++] = h[value & 0x0f];
- value >>= 4;
- }
- return i;
-}
-
-/** print long hex into buffer, returns length */
-static int
-print_hex_l(char* buf, int max, unsigned long value)
-{
- const char* h = "0123456789abcdef";
- int i = 0;
- if(value == 0) {
- if(max > 0) {
- buf[0] = '0';
- i = 1;
- }
- } else while(value && i < max) {
- buf[i++] = h[value & 0x0f];
- value >>= 4;
- }
- return i;
-}
-
-/** print long long hex into buffer, returns length */
-static int
-print_hex_ll(char* buf, int max, unsigned long long value)
-{
- const char* h = "0123456789abcdef";
- int i = 0;
- if(value == 0) {
- if(max > 0) {
- buf[0] = '0';
- i = 1;
- }
- } else while(value && i < max) {
- buf[i++] = h[value & 0x0f];
- value >>= 4;
- }
- return i;
-}
-
-/** copy string into result, reversed */
-static void
-spool_str_rev(char** at, size_t* left, int* ret, const char* buf, int len)
-{
- int i = len;
- while(i) {
- if(*left > 1) {
- *(*at)++ = buf[--i];
- (*left)--;
- } else --i;
- (*ret)++;
- }
-}
-
-/** copy string into result */
-static void
-spool_str(char** at, size_t* left, int* ret, const char* buf, int len)
-{
- int i;
- for(i=0; i<len; i++) {
- if(*left > 1) {
- *(*at)++ = buf[i];
- (*left)--;
- }
- (*ret)++;
- }
-}
-
-/** print number formatted */
-static void
-print_num(char** at, size_t* left, int* ret, int minw, int precision,
- int prgiven, int zeropad, int minus, int plus, int space,
- int zero, int negative, char* buf, int len)
-{
- int w = len; /* excludes minus sign */
- char s = get_negsign(negative, plus, space);
- if(minus) {
- /* left adjust the number into the field, space padding */
- /* calc numw = [sign][zeroes][number] */
- int numw = w;
- if(precision == 0 && zero) numw = 0;
- if(numw < precision) numw = precision;
- if(s) numw++;
-
- /* sign */
- if(s) print_pad(at, left, ret, s, 1);
-
- /* number */
- if(precision == 0 && zero) {
- /* "" for the number */
- } else {
- if(w < precision)
- print_pad(at, left, ret, '0', precision - w);
- spool_str_rev(at, left, ret, buf, len);
- }
- /* spaces */
- if(numw < minw)
- print_pad(at, left, ret, ' ', minw - numw);
- } else {
- /* pad on the left of the number */
- /* calculate numw has width of [sign][zeroes][number] */
- int numw = w;
- if(precision == 0 && zero) numw = 0;
- if(numw < precision) numw = precision;
- if(!prgiven && zeropad && numw < minw) numw = minw;
- else if(s) numw++;
-
- /* pad with spaces */
- if(numw < minw)
- print_pad(at, left, ret, ' ', minw - numw);
- /* print sign (and one less zeropad if so) */
- if(s) {
- print_pad(at, left, ret, s, 1);
- numw--;
- }
- /* pad with zeroes */
- if(w < numw)
- print_pad(at, left, ret, '0', numw - w);
- if(precision == 0 && zero)
- return;
- /* print the characters for the value */
- spool_str_rev(at, left, ret, buf, len);
- }
-}
-
-/** print %d and %i */
-static void
-print_num_d(char** at, size_t* left, int* ret, int value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_DEC_BUFSZ];
- int negative = (value < 0);
- int zero = (value == 0);
- int len = print_dec(buf, (int)sizeof(buf),
- (unsigned int)(negative?-value:value));
- print_num(at, left, ret, minw, precision, prgiven, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-/** print %ld and %li */
-static void
-print_num_ld(char** at, size_t* left, int* ret, long value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_DEC_BUFSZ];
- int negative = (value < 0);
- int zero = (value == 0);
- int len = print_dec_l(buf, (int)sizeof(buf),
- (unsigned long)(negative?-value:value));
- print_num(at, left, ret, minw, precision, prgiven, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-/** print %lld and %lli */
-static void
-print_num_lld(char** at, size_t* left, int* ret, long long value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_DEC_BUFSZ];
- int negative = (value < 0);
- int zero = (value == 0);
- int len = print_dec_ll(buf, (int)sizeof(buf),
- (unsigned long long)(negative?-value:value));
- print_num(at, left, ret, minw, precision, prgiven, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-/** print %u */
-static void
-print_num_u(char** at, size_t* left, int* ret, unsigned int value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_DEC_BUFSZ];
- int negative = 0;
- int zero = (value == 0);
- int len = print_dec(buf, (int)sizeof(buf), value);
- print_num(at, left, ret, minw, precision, prgiven, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-/** print %lu */
-static void
-print_num_lu(char** at, size_t* left, int* ret, unsigned long value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_DEC_BUFSZ];
- int negative = 0;
- int zero = (value == 0);
- int len = print_dec_l(buf, (int)sizeof(buf), value);
- print_num(at, left, ret, minw, precision, prgiven, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-/** print %llu */
-static void
-print_num_llu(char** at, size_t* left, int* ret, unsigned long long value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_DEC_BUFSZ];
- int negative = 0;
- int zero = (value == 0);
- int len = print_dec_ll(buf, (int)sizeof(buf), value);
- print_num(at, left, ret, minw, precision, prgiven, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-/** print %x */
-static void
-print_num_x(char** at, size_t* left, int* ret, unsigned int value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_DEC_BUFSZ];
- int negative = 0;
- int zero = (value == 0);
- int len = print_hex(buf, (int)sizeof(buf), value);
- print_num(at, left, ret, minw, precision, prgiven, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-/** print %lx */
-static void
-print_num_lx(char** at, size_t* left, int* ret, unsigned long value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_DEC_BUFSZ];
- int negative = 0;
- int zero = (value == 0);
- int len = print_hex_l(buf, (int)sizeof(buf), value);
- print_num(at, left, ret, minw, precision, prgiven, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-/** print %llx */
-static void
-print_num_llx(char** at, size_t* left, int* ret, unsigned long long value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_DEC_BUFSZ];
- int negative = 0;
- int zero = (value == 0);
- int len = print_hex_ll(buf, (int)sizeof(buf), value);
- print_num(at, left, ret, minw, precision, prgiven, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-/** print %llp */
-static void
-print_num_llp(char** at, size_t* left, int* ret, void* value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_DEC_BUFSZ];
- int negative = 0;
- int zero = (value == 0);
-#if defined(SIZE_MAX) && defined(UINT32_MAX) && (UINT32_MAX == SIZE_MAX || INT32_MAX == SIZE_MAX)
- /* avoid warning about upcast on 32bit systems */
- unsigned long long llvalue = (unsigned long)value;
-#else
- unsigned long long llvalue = (unsigned long long)value;
-#endif
- int len = print_hex_ll(buf, (int)sizeof(buf), llvalue);
- if(zero) {
- buf[0]=')';
- buf[1]='l';
- buf[2]='i';
- buf[3]='n';
- buf[4]='(';
- len = 5;
- } else {
- /* put '0x' in front of the (reversed) buffer result */
- if(len < PRINT_DEC_BUFSZ)
- buf[len++] = 'x';
- if(len < PRINT_DEC_BUFSZ)
- buf[len++] = '0';
- }
- print_num(at, left, ret, minw, precision, prgiven, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-#define PRINT_FLOAT_BUFSZ 64 /* xx.yy with 20.20 about the max */
-/** spool remainder after the decimal point to buffer, in reverse */
-static int
-print_remainder(char* buf, int max, double r, int prec)
-{
- unsigned long long cap = 1;
- unsigned long long value;
- int len, i;
- if(prec > 19) prec = 19; /* max we can do */
- if(max < prec) return 0;
- for(i=0; i<prec; i++) {
- cap *= 10;
- }
- r *= (double)cap;
- value = (unsigned long long)r;
- /* see if we need to round up */
- if(((unsigned long long)((r - (double)value)*10.0)) >= 5) {
- value++;
- /* that might carry to numbers before the comma, if so,
- * just ignore that rounding. failure because 64bitprintout */
- if(value >= cap)
- value = cap-1;
- }
- len = print_dec_ll(buf, max, value);
- while(len < prec) { /* pad with zeroes, e.g. if 0.0012 */
- buf[len++] = '0';
- }
- if(len < max)
- buf[len++] = '.';
- return len;
-}
-
-/** spool floating point to buffer */
-static int
-print_float(char* buf, int max, double value, int prec)
-{
- /* as xxx.xxx if prec==0, no '.', with prec decimals after . */
- /* no conversion for NAN and INF, because we do not want to require
- linking with -lm. */
- /* Thus, the conversions use 64bit integers to convert the numbers,
- * which makes 19 digits before and after the decimal point the max */
- unsigned long long whole = (unsigned long long)value;
- double remain = value - (double)whole;
- int len = 0;
- if(prec != 0)
- len = print_remainder(buf, max, remain, prec);
- len += print_dec_ll(buf+len, max-len, whole);
- return len;
-}
-
-/** print %f */
-static void
-print_num_f(char** at, size_t* left, int* ret, double value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_FLOAT_BUFSZ];
- int negative = (value < 0);
- int zero = 0;
- int len;
- if(!prgiven) precision = 6;
- len = print_float(buf, (int)sizeof(buf), negative?-value:value,
- precision);
- print_num(at, left, ret, minw, 1, 0, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-/* rudimentary %g support */
-static int
-print_float_g(char* buf, int max, double value, int prec)
-{
- unsigned long long whole = (unsigned long long)value;
- double remain = value - (double)whole;
- int before = 0;
- int len = 0;
-
- /* number of digits before the decimal point */
- while(whole > 0) {
- before++;
- whole /= 10;
- }
- whole = (unsigned long long)value;
-
- if(prec > before && remain != 0.0) {
- /* see if the last decimals are zero, if so, skip them */
- len = print_remainder(buf, max, remain, prec-before);
- while(len > 0 && buf[0]=='0') {
- memmove(buf, buf+1, --len);
- }
- }
- len += print_dec_ll(buf+len, max-len, whole);
- return len;
-}
-
-
-/** print %g */
-static void
-print_num_g(char** at, size_t* left, int* ret, double value,
- int minw, int precision, int prgiven, int zeropad, int minus,
- int plus, int space)
-{
- char buf[PRINT_FLOAT_BUFSZ];
- int negative = (value < 0);
- int zero = 0;
- int len;
- if(!prgiven) precision = 6;
- if(precision == 0) precision = 1;
- len = print_float_g(buf, (int)sizeof(buf), negative?-value:value,
- precision);
- print_num(at, left, ret, minw, 1, 0, zeropad, minus,
- plus, space, zero, negative, buf, len);
-}
-
-
-/** strnlen (compat implementation) */
-static int
-my_strnlen(const char* s, int max)
-{
- int i;
- for(i=0; i<max; i++)
- if(s[i]==0)
- return i;
- return max;
-}
-
-/** print %s */
-static void
-print_str(char** at, size_t* left, int* ret, char* s,
- int minw, int precision, int prgiven, int minus)
-{
- int w;
- /* with prec: no more than x characters from this string, stop at 0 */
- if(prgiven)
- w = my_strnlen(s, precision);
- else w = (int)strlen(s); /* up to the nul */
- if(w < minw && !minus)
- print_pad(at, left, ret, ' ', minw - w);
- spool_str(at, left, ret, s, w);
- if(w < minw && minus)
- print_pad(at, left, ret, ' ', minw - w);
-}
-
-/** print %c */
-static void
-print_char(char** at, size_t* left, int* ret, int c,
- int minw, int minus)
-{
- if(1 < minw && !minus)
- print_pad(at, left, ret, ' ', minw - 1);
- print_pad(at, left, ret, c, 1);
- if(1 < minw && minus)
- print_pad(at, left, ret, ' ', minw - 1);
-}
-
-
-/**
- * Print to string.
- * str: string buffer for result. result will be null terminated.
- * size: size of the buffer. null is put inside buffer.
- * format: printf format string.
- * arg: '...' arguments to print.
- * returns number of characters. a null is printed after this.
- * return number of bytes that would have been written
- * if the buffer had been large enough.
- *
- * supported format specifiers:
- * %s, %u, %d, %x, %i, %f, %g, %c, %p, %n.
- * length: l, ll (for d, u, x).
- * precision: 6.6d (for d, u, x)
- * %f, %g precisions, 0.3f
- * %20s, '.*s'
- * and %%.
- */
-int vsnprintf(char* str, size_t size, const char* format, va_list arg)
-{
- char* at = str;
- size_t left = size;
- int ret = 0;
- const char* fmt = format;
- int conv, minw, precision, prgiven, zeropad, minus, plus, space, length;
- while(*fmt) {
- /* copy string before % */
- while(*fmt && *fmt!='%') {
- if(left > 1) {
- *at++ = *fmt++;
- left--;
- } else fmt++;
- ret++;
- }
-
- /* see if we are at end */
- if(!*fmt) break;
-
- /* fetch next argument % designation from format string */
- fmt++; /* skip the '%' */
-
- /********************************/
- /* get the argument designation */
- /********************************/
- /* we must do this vararg stuff inside this function for
- * portability. Hence, get_designation, and print_designation
- * are not their own functions. */
-
- /* printout designation:
- * conversion specifier: x, d, u, s, c, n, m, p
- * flags: # not supported
- * 0 zeropad (on the left)
- * - left adjust (right by default)
- * ' ' printspace for positive number (in - position).
- * + alwayssign
- * fieldwidth: [1-9][0-9]* minimum field width.
- * if this is * then type int next argument specifies the minwidth.
- * if this is negative, the - flag is set (with positive width).
- * precision: period[digits]*, %.2x.
- * if this is * then type int next argument specifies the precision.
- * just '.' or negative value means precision=0.
- * this is mindigits to print for d, i, u, x
- * this is aftercomma digits for f
- * this is max number significant digits for g
- * maxnumber characters to be printed for s
- * length: 0-none (int), 1-l (long), 2-ll (long long)
- * notsupported: hh (char), h (short), L (long double), q, j, z, t
- * Does not support %m$ and *m$ argument designation as array indices.
- * Does not support %#x
- *
- */
- minw = 0;
- precision = 1;
- prgiven = 0;
- zeropad = 0;
- minus = 0;
- plus = 0;
- space = 0;
- length = 0;
-
- /* get flags in any order */
- for(;;) {
- if(*fmt == '0')
- zeropad = 1;
- else if(*fmt == '-')
- minus = 1;
- else if(*fmt == '+')
- plus = 1;
- else if(*fmt == ' ')
- space = 1;
- else break;
- fmt++;
- }
-
- /* field width */
- if(*fmt == '*') {
- fmt++; /* skip char */
- minw = va_arg(arg, int);
- if(minw < 0) {
- minus = 1;
- minw = -minw;
- }
- } else while(*fmt >= '0' && *fmt <= '9') {
- minw = minw*10 + (*fmt++)-'0';
- }
-
- /* precision */
- if(*fmt == '.') {
- fmt++; /* skip period */
- prgiven = 1;
- precision = 0;
- if(*fmt == '*') {
- fmt++; /* skip char */
- precision = va_arg(arg, int);
- if(precision < 0)
- precision = 0;
- } else while(*fmt >= '0' && *fmt <= '9') {
- precision = precision*10 + (*fmt++)-'0';
- }
- }
-
- /* length */
- if(*fmt == 'l') {
- fmt++; /* skip char */
- length = 1;
- if(*fmt == 'l') {
- fmt++; /* skip char */
- length = 2;
- }
- }
-
- /* get the conversion */
- if(!*fmt) conv = 0;
- else conv = *fmt++;
-
- /***********************************/
- /* print that argument designation */
- /***********************************/
- switch(conv) {
- case 'i':
- case 'd':
- if(length == 0)
- print_num_d(&at, &left, &ret, va_arg(arg, int),
- minw, precision, prgiven, zeropad, minus, plus, space);
- else if(length == 1)
- print_num_ld(&at, &left, &ret, va_arg(arg, long),
- minw, precision, prgiven, zeropad, minus, plus, space);
- else if(length == 2)
- print_num_lld(&at, &left, &ret,
- va_arg(arg, long long),
- minw, precision, prgiven, zeropad, minus, plus, space);
- break;
- case 'u':
- if(length == 0)
- print_num_u(&at, &left, &ret,
- va_arg(arg, unsigned int),
- minw, precision, prgiven, zeropad, minus, plus, space);
- else if(length == 1)
- print_num_lu(&at, &left, &ret,
- va_arg(arg, unsigned long),
- minw, precision, prgiven, zeropad, minus, plus, space);
- else if(length == 2)
- print_num_llu(&at, &left, &ret,
- va_arg(arg, unsigned long long),
- minw, precision, prgiven, zeropad, minus, plus, space);
- break;
- case 'x':
- if(length == 0)
- print_num_x(&at, &left, &ret,
- va_arg(arg, unsigned int),
- minw, precision, prgiven, zeropad, minus, plus, space);
- else if(length == 1)
- print_num_lx(&at, &left, &ret,
- va_arg(arg, unsigned long),
- minw, precision, prgiven, zeropad, minus, plus, space);
- else if(length == 2)
- print_num_llx(&at, &left, &ret,
- va_arg(arg, unsigned long long),
- minw, precision, prgiven, zeropad, minus, plus, space);
- break;
- case 's':
- print_str(&at, &left, &ret, va_arg(arg, char*),
- minw, precision, prgiven, minus);
- break;
- case 'c':
- print_char(&at, &left, &ret, va_arg(arg, int),
- minw, minus);
- break;
- case 'n':
- *va_arg(arg, int*) = ret;
- break;
- case 'm':
- print_str(&at, &left, &ret, strerror(errno),
- minw, precision, prgiven, minus);
- break;
- case 'p':
- print_num_llp(&at, &left, &ret, va_arg(arg, void*),
- minw, precision, prgiven, zeropad, minus, plus, space);
- break;
- case '%':
- print_pad(&at, &left, &ret, '%', 1);
- break;
- case 'f':
- print_num_f(&at, &left, &ret, va_arg(arg, double),
- minw, precision, prgiven, zeropad, minus, plus, space);
- break;
- case 'g':
- print_num_g(&at, &left, &ret, va_arg(arg, double),
- minw, precision, prgiven, zeropad, minus, plus, space);
- break;
- /* unknown */
- default:
- case 0: break;
- }
- }
-
- /* zero terminate */
- if(left > 0)
- *at = 0;
- return ret;
-}
-
-#ifdef SNPRINTF_TEST
-
-/** do tests */
-#undef snprintf
-#define DOTEST(bufsz, result, retval, ...) do { \
- char buf[bufsz]; \
- printf("now test %s\n", #__VA_ARGS__); \
- int r=my_snprintf(buf, sizeof(buf), __VA_ARGS__); \
- if(r != retval || strcmp(buf, result) != 0) { \
- printf("error test(%s) was \"%s\":%d\n", \
- ""#bufsz", "#result", "#retval", "#__VA_ARGS__, \
- buf, r); \
- exit(1); \
- } \
- r=snprintf(buf, sizeof(buf), __VA_ARGS__); \
- if(r != retval || strcmp(buf, result) != 0) { \
- printf("error test(%s) differs with system, \"%s\":%d\n", \
- ""#bufsz", "#result", "#retval", "#__VA_ARGS__, \
- buf, r); \
- exit(1); \
- } \
- printf("test(\"%s\":%d) passed\n", buf, r); \
- } while(0);
-
-/** test program */
-int main(void)
-{
- int x = 0;
-
- /* bufsize, expectedstring, expectedretval, snprintf arguments */
- DOTEST(1024, "hello", 5, "hello");
- DOTEST(1024, "h", 1, "h");
- /* warning from gcc for format string, but it does work
- * DOTEST(1024, "", 0, ""); */
-
- DOTEST(3, "he", 5, "hello");
- DOTEST(1, "", 7, "%d", 7823089);
-
- /* test positive numbers */
- DOTEST(1024, "0", 1, "%d", 0);
- DOTEST(1024, "1", 1, "%d", 1);
- DOTEST(1024, "9", 1, "%d", 9);
- DOTEST(1024, "15", 2, "%d", 15);
- DOTEST(1024, "ab15cd", 6, "ab%dcd", 15);
- DOTEST(1024, "167", 3, "%d", 167);
- DOTEST(1024, "7823089", 7, "%d", 7823089);
- DOTEST(1024, " 12", 3, "%3d", 12);
- DOTEST(1024, "012", 3, "%.3d", 12);
- DOTEST(1024, "012", 3, "%3.3d", 12);
- DOTEST(1024, "012", 3, "%03d", 12);
- DOTEST(1024, " 012", 4, "%4.3d", 12);
- DOTEST(1024, "", 0, "%.0d", 0);
-
- /* test negative numbers */
- DOTEST(1024, "-1", 2, "%d", -1);
- DOTEST(1024, "-12", 3, "%3d", -12);
- DOTEST(1024, " -2", 3, "%3d", -2);
- DOTEST(1024, "-012", 4, "%.3d", -12);
- DOTEST(1024, "-012", 4, "%3.3d", -12);
- DOTEST(1024, "-012", 4, "%4.3d", -12);
- DOTEST(1024, " -012", 5, "%5.3d", -12);
- DOTEST(1024, "-12", 3, "%03d", -12);
- DOTEST(1024, "-02", 3, "%03d", -2);
- DOTEST(1024, "-15", 3, "%d", -15);
- DOTEST(1024, "-7307", 5, "%d", -7307);
- DOTEST(1024, "-12 ", 5, "%-5d", -12);
- DOTEST(1024, "-00012", 6, "%-.5d", -12);
-
- /* test + and space flags */
- DOTEST(1024, "+12", 3, "%+d", 12);
- DOTEST(1024, " 12", 3, "% d", 12);
-
- /* test %u */
- DOTEST(1024, "12", 2, "%u", 12);
- DOTEST(1024, "0", 1, "%u", 0);
- DOTEST(1024, "4294967295", 10, "%u", 0xffffffff);
-
- /* test %x */
- DOTEST(1024, "0", 1, "%x", 0);
- DOTEST(1024, "c", 1, "%x", 12);
- DOTEST(1024, "12ab34cd", 8, "%x", 0x12ab34cd);
-
- /* test %llu, %lld */
- DOTEST(1024, "18446744073709551615", 20, "%llu",
- (long long)0xffffffffffffffff);
- DOTEST(1024, "-9223372036854775808", 20, "%lld",
- (long long)0x8000000000000000);
- DOTEST(1024, "9223372036854775808", 19, "%llu",
- (long long)0x8000000000000000);
-
- /* test %s */
- DOTEST(1024, "hello", 5, "%s", "hello");
- DOTEST(1024, " hello", 10, "%10s", "hello");
- DOTEST(1024, "hello ", 10, "%-10s", "hello");
- DOTEST(1024, "he", 2, "%.2s", "hello");
- DOTEST(1024, " he", 4, "%4.2s", "hello");
- DOTEST(1024, " h", 4, "%4.2s", "h");
-
- /* test %c */
- DOTEST(1024, "a", 1, "%c", 'a');
- /* warning from gcc for format string, but it does work
- DOTEST(1024, " a", 5, "%5c", 'a');
- DOTEST(1024, "a", 1, "%.0c", 'a'); */
-
- /* test %n */
- DOTEST(1024, "hello", 5, "hello%n", &x);
- if(x != 5) { printf("the %%n failed\n"); exit(1); }
-
- /* test %m */
- errno = 0;
- DOTEST(1024, "Success", 7, "%m");
-
- /* test %p */
- DOTEST(1024, "0x10", 4, "%p", (void*)0x10);
- DOTEST(1024, "(nil)", 5, "%p", (void*)0x0);
-
- /* test %% */
- DOTEST(1024, "%", 1, "%%");
-
- /* test %f */
- DOTEST(1024, "0.000000", 8, "%f", 0.0);
- DOTEST(1024, "0.00", 4, "%.2f", 0.0);
- /* differs, "-0.00" DOTEST(1024, "0.00", 4, "%.2f", -0.0); */
- DOTEST(1024, "234.00", 6, "%.2f", 234.005);
- DOTEST(1024, "8973497.1246", 12, "%.4f", 8973497.12456);
- DOTEST(1024, "-12.000000", 10, "%f", -12.0);
- DOTEST(1024, "6", 1, "%.0f", 6.0);
-
- DOTEST(1024, "6", 1, "%g", 6.0);
- DOTEST(1024, "6.1", 3, "%g", 6.1);
- DOTEST(1024, "6.15", 4, "%g", 6.15);
-
- /* These format strings are from the code of NSD, Unbound, ldns */
-
- DOTEST(1024, "abcdef", 6, "%s", "abcdef");
- DOTEST(1024, "005", 3, "%03u", 5);
- DOTEST(1024, "12345", 5, "%03u", 12345);
- DOTEST(1024, "5", 1, "%d", 5);
- DOTEST(1024, "(nil)", 5, "%p", NULL);
- DOTEST(1024, "12345", 5, "%ld", (long)12345);
- DOTEST(1024, "12345", 5, "%lu", (long)12345);
- DOTEST(1024, " 12345", 12, "%12u", (unsigned)12345);
- DOTEST(1024, "12345", 5, "%u", (unsigned)12345);
- DOTEST(1024, "12345", 5, "%llu", (unsigned long long)12345);
- DOTEST(1024, "12345", 5, "%x", 0x12345);
- DOTEST(1024, "12345", 5, "%llx", (long long)0x12345);
- DOTEST(1024, "012345", 6, "%6.6d", 12345);
- DOTEST(1024, "012345", 6, "%6.6u", 12345);
- DOTEST(1024, "1234.54", 7, "%g", 1234.54);
- DOTEST(1024, "123456789.54", 12, "%.12g", 123456789.54);
- DOTEST(1024, "3456789123456.54", 16, "%.16g", 3456789123456.54);
- /* %24g does not work with 24 digits, not enough accuracy,
- * the first 16 digits are correct */
- DOTEST(1024, "12345", 5, "%3.3d", 12345);
- DOTEST(1024, "000", 3, "%3.3d", 0);
- DOTEST(1024, "001", 3, "%3.3d", 1);
- DOTEST(1024, "012", 3, "%3.3d", 12);
- DOTEST(1024, "-012", 4, "%3.3d", -12);
- DOTEST(1024, "he", 2, "%.2s", "hello");
- DOTEST(1024, "helloworld", 10, "%s%s", "hello", "world");
- DOTEST(1024, "he", 2, "%.*s", 2, "hello");
- DOTEST(1024, " hello", 7, "%*s", 7, "hello");
- DOTEST(1024, "hello ", 7, "%*s", -7, "hello");
- DOTEST(1024, "0", 1, "%c", '0');
- DOTEST(1024, "A", 1, "%c", 'A');
- DOTEST(1024, "", 1, "%c", 0);
- DOTEST(1024, "\010", 1, "%c", 8);
- DOTEST(1024, "%", 1, "%%");
- DOTEST(1024, "0a", 2, "%02x", 0x0a);
- DOTEST(1024, "bd", 2, "%02x", 0xbd);
- DOTEST(1024, "12", 2, "%02ld", (long)12);
- DOTEST(1024, "02", 2, "%02ld", (long)2);
- DOTEST(1024, "02", 2, "%02u", (unsigned)2);
- DOTEST(1024, "765432", 6, "%05u", (unsigned)765432);
- DOTEST(1024, "10.234", 6, "%0.3f", 10.23421);
- DOTEST(1024, "123456.234", 10, "%0.3f", 123456.23421);
- DOTEST(1024, "123456789.234", 13, "%0.3f", 123456789.23421);
- DOTEST(1024, "123456.23", 9, "%.2f", 123456.23421);
- DOTEST(1024, "123456", 6, "%.0f", 123456.23421);
- DOTEST(1024, "0123", 4, "%.4x", 0x0123);
- DOTEST(1024, "00000123", 8, "%.8x", 0x0123);
- DOTEST(1024, "ffeb0cde", 8, "%.8x", 0xffeb0cde);
- DOTEST(1024, " 987654321", 10, "%10lu", (unsigned long)987654321);
- DOTEST(1024, " 987654321", 12, "%12lu", (unsigned long)987654321);
- DOTEST(1024, "987654321", 9, "%i", 987654321);
- DOTEST(1024, "-87654321", 9, "%i", -87654321);
- DOTEST(1024, "hello ", 16, "%-16s", "hello");
- DOTEST(1024, " ", 16, "%-16s", "");
- DOTEST(1024, "a ", 16, "%-16s", "a");
- DOTEST(1024, "foobarfoobar ", 16, "%-16s", "foobarfoobar");
- DOTEST(1024, "foobarfoobarfoobar", 18, "%-16s", "foobarfoobarfoobar");
-
- /* combined expressions */
- DOTEST(1024, "foo 1.0 size 512 edns", 21,
- "foo %s size %d %s%s", "1.0", 512, "", "edns");
- DOTEST(15, "foo 1.0 size 5", 21,
- "foo %s size %d %s%s", "1.0", 512, "", "edns");
- DOTEST(1024, "packet 1203ceff id", 18,
- "packet %2.2x%2.2x%2.2x%2.2x id", 0x12, 0x03, 0xce, 0xff);
- DOTEST(1024, "/tmp/testbound_123abcd.tmp", 26, "/tmp/testbound_%u%s%s.tmp", 123, "ab", "cd");
-
- return 0;
-}
-#endif /* SNPRINTF_TEST */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-30 23:16:20 +0000