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-rw-r--r--contrib/argp-standalone/vsnprintf.c839
1 files changed, 0 insertions, 839 deletions
diff --git a/contrib/argp-standalone/vsnprintf.c b/contrib/argp-standalone/vsnprintf.c
deleted file mode 100644
index 33c9a5d0042..00000000000
--- a/contrib/argp-standalone/vsnprintf.c
+++ /dev/null
@@ -1,839 +0,0 @@
-/* Copied from http://www.fiction.net/blong/programs/snprintf.c */
-
-/*
- * 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
- *
- * Russ Allbery <rra@stanford.edu> 2000-08-26
- * fixed return value to comply with C99
- * fixed handling of snprintf(NULL, ...)
- *
- * Niels Möller <nisse@lysator.liu.se> 2004-03-05
- * fixed calls to isdigit to use unsigned char.
- * fixed calls to va_arg; short arguments are always passed as int.
- *
- **************************************************************/
-
-#if HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#if !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF)
-
-#include <string.h>
-#include <ctype.h>
-#include <sys/types.h>
-
-/* Define this as a fall through, HAVE_STDARG_H is probably already set */
-
-#define HAVE_VARARGS_H
-
-
-/* varargs declarations: */
-
-#if defined(HAVE_STDARG_H)
-# include <stdarg.h>
-# define HAVE_STDARGS /* let's hope that works everywhere (mj) */
-# define VA_LOCAL_DECL va_list ap
-# define VA_START(f) va_start(ap, f)
-# define VA_SHIFT(v,t) ; /* no-op for ANSI */
-# define VA_END va_end(ap)
-#else
-# if defined(HAVE_VARARGS_H)
-# include <varargs.h>
-# undef HAVE_STDARGS
-# define VA_LOCAL_DECL va_list ap
-# define VA_START(f) va_start(ap) /* f is ignored! */
-# define VA_SHIFT(v,t) v = va_arg(ap,t)
-# define VA_END va_end(ap)
-# else
-/*XX ** NO VARARGS ** XX*/
-# endif
-#endif
-
-#ifdef HAVE_LONG_DOUBLE
-#define LDOUBLE long double
-#else
-#define LDOUBLE double
-#endif
-
-int snprintf (char *str, size_t count, const char *fmt, ...);
-int vsnprintf (char *str, size_t count, const char *fmt, va_list arg);
-
-static int dopr (char *buffer, size_t maxlen, const char *format,
- va_list args);
-static int fmtstr (char *buffer, size_t *currlen, size_t maxlen,
- char *value, int flags, int min, int max);
-static int fmtint (char *buffer, size_t *currlen, size_t maxlen,
- long value, int base, int min, int max, int flags);
-static int fmtfp (char *buffer, size_t *currlen, size_t maxlen,
- LDOUBLE fvalue, int min, int max, int flags);
-static int 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 char_to_int(p) (p - '0')
-#define MAX(p,q) ((p >= q) ? p : q)
-#define MIN(p,q) ((p <= q) ? p : q)
-
-static int dopr (char *buffer, size_t maxlen, const char *format, va_list args)
-{
- unsigned char ch;
- long value;
- LDOUBLE fvalue;
- char *strvalue;
- int min;
- int max;
- int state;
- int flags;
- int cflags;
- int total;
- size_t currlen;
-
- state = DP_S_DEFAULT;
- currlen = flags = cflags = min = 0;
- max = -1;
- ch = *format++;
- total = 0;
-
- 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
- total += 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(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(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:
- /* Currently, we don't support Long Long, bummer */
- switch (ch)
- {
- case 'h':
- cflags = DP_C_SHORT;
- ch = *format++;
- break;
- case 'l':
- cflags = DP_C_LONG;
- ch = *format++;
- break;
- case 'L':
- cflags = DP_C_LDOUBLE;
- ch = *format++;
- break;
- default:
- break;
- }
- state = DP_S_CONV;
- break;
- case DP_S_CONV:
- switch (ch)
- {
- case 'd':
- case 'i':
- if (cflags == DP_C_SHORT)
- value = (short) va_arg (args, int);
- else if (cflags == DP_C_LONG)
- value = va_arg (args, long int);
- else
- value = va_arg (args, int);
- total += fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
- break;
- case 'o':
- flags |= DP_F_UNSIGNED;
- if (cflags == DP_C_SHORT)
- value = (unsigned short) va_arg (args, unsigned);
- else if (cflags == DP_C_LONG)
- value = va_arg (args, unsigned long int);
- else
- value = va_arg (args, unsigned int);
- total += fmtint (buffer, &currlen, maxlen, value, 8, min, max, flags);
- break;
- case 'u':
- flags |= DP_F_UNSIGNED;
- if (cflags == DP_C_SHORT)
- value = (unsigned short) va_arg (args, unsigned);
- else if (cflags == DP_C_LONG)
- value = va_arg (args, unsigned long int);
- else
- value = va_arg (args, unsigned int);
- total += 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 = (unsigned short) va_arg (args, unsigned);
- else if (cflags == DP_C_LONG)
- value = va_arg (args, unsigned long int);
- else
- value = va_arg (args, unsigned int);
- total += 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? */
- total += 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':
- total += dopr_outch (buffer, &currlen, maxlen, va_arg (args, int));
- break;
- case 's':
- strvalue = va_arg (args, char *);
- total += fmtstr (buffer, &currlen, maxlen, strvalue, flags, min, max);
- break;
- case 'p':
- strvalue = va_arg (args, void *);
- total += fmtint (buffer, &currlen, maxlen, (long) strvalue, 16, min,
- max, flags);
- break;
- case 'n':
- if (cflags == DP_C_SHORT)
- {
- short int *num;
- num = va_arg (args, short int *);
- *num = currlen;
- }
- else if (cflags == DP_C_LONG)
- {
- long int *num;
- num = va_arg (args, long int *);
- *num = currlen;
- }
- else
- {
- int *num;
- num = va_arg (args, int *);
- *num = currlen;
- }
- break;
- case '%':
- total += 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 (buffer != NULL)
- {
- if (currlen < maxlen - 1)
- buffer[currlen] = '\0';
- else
- buffer[maxlen - 1] = '\0';
- }
- return total;
-}
-
-static int 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;
- int total = 0;
-
- if (value == 0)
- {
- value = "<NULL>";
- }
-
- for (strln = 0; value[strln]; ++strln); /* strlen */
- if (max >= 0 && max < strln)
- strln = max;
- padlen = min - strln;
- if (padlen < 0)
- padlen = 0;
- if (flags & DP_F_MINUS)
- padlen = -padlen; /* Left Justify */
-
- while (padlen > 0)
- {
- total += dopr_outch (buffer, currlen, maxlen, ' ');
- --padlen;
- }
- while (*value && ((max < 0) || (cnt < max)))
- {
- total += dopr_outch (buffer, currlen, maxlen, *value++);
- ++cnt;
- }
- while (padlen < 0)
- {
- total += dopr_outch (buffer, currlen, maxlen, ' ');
- ++padlen;
- }
- return total;
-}
-
-/* Have to handle DP_F_NUM (ie 0x and 0 alternates) */
-
-static int 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;
- int total = 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
- dprint (1, (debugfile, "zpad: %d, spad: %d, min: %d, max: %d, place: %d\n",
- zpadlen, spadlen, min, max, place));
-#endif
-
- /* Spaces */
- while (spadlen > 0)
- {
- total += dopr_outch (buffer, currlen, maxlen, ' ');
- --spadlen;
- }
-
- /* Sign */
- if (signvalue)
- total += dopr_outch (buffer, currlen, maxlen, signvalue);
-
- /* Zeros */
- if (zpadlen > 0)
- {
- while (zpadlen > 0)
- {
- total += dopr_outch (buffer, currlen, maxlen, '0');
- --zpadlen;
- }
- }
-
- /* Digits */
- while (place > 0)
- total += dopr_outch (buffer, currlen, maxlen, convert[--place]);
-
- /* Left Justified spaces */
- while (spadlen < 0) {
- total += dopr_outch (buffer, currlen, maxlen, ' ');
- ++spadlen;
- }
-
- return total;
-}
-
-static LDOUBLE abs_val (LDOUBLE value)
-{
- LDOUBLE result = value;
-
- if (value < 0)
- result = -value;
-
- return result;
-}
-
-static LDOUBLE pow10_argp (int exp)
-{
- LDOUBLE result = 1;
-
- while (exp)
- {
- result *= 10;
- exp--;
- }
-
- return result;
-}
-
-static long round_argp (LDOUBLE value)
-{
- long intpart;
-
- intpart = value;
- value = value - intpart;
- if (value >= 0.5)
- intpart++;
-
- return intpart;
-}
-
-static int fmtfp (char *buffer, size_t *currlen, size_t maxlen,
- LDOUBLE fvalue, int min, int max, int flags)
-{
- int signvalue = 0;
- LDOUBLE ufvalue;
- char iconvert[20];
- char fconvert[20];
- int iplace = 0;
- int fplace = 0;
- int padlen = 0; /* amount to pad */
- int zpadlen = 0;
- int caps = 0;
- int total = 0;
- long intpart;
- long fracpart;
-
- /*
- * 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
-
- intpart = ufvalue;
-
- /*
- * Sorry, we only support 9 digits past the decimal because of our
- * conversion method
- */
- if (max > 9)
- max = 9;
-
- /* We "cheat" by converting the fractional part to integer by
- * multiplying by a factor of 10
- */
- fracpart = round_argp ((pow10_argp (max)) * (ufvalue - intpart));
-
- if (fracpart >= pow10_argp (max))
- {
- intpart++;
- fracpart -= pow10_argp (max);
- }
-
-#ifdef DEBUG_SNPRINTF
- dprint (1, (debugfile, "fmtfp: %f =? %d.%d\n", fvalue, intpart, fracpart));
-#endif
-
- /* Convert integer part */
- do {
- iconvert[iplace++] =
- (caps? "0123456789ABCDEF":"0123456789abcdef")[intpart % 10];
- intpart = (intpart / 10);
- } while(intpart && (iplace < 20));
- if (iplace == 20) iplace--;
- iconvert[iplace] = 0;
-
- /* Convert fractional part */
- do {
- fconvert[fplace++] =
- (caps? "0123456789ABCDEF":"0123456789abcdef")[fracpart % 10];
- fracpart = (fracpart / 10);
- } while(fracpart && (fplace < 20));
- if (fplace == 20) fplace--;
- fconvert[fplace] = 0;
-
- /* -1 for decimal point, another -1 if we are printing a sign */
- padlen = min - iplace - max - 1 - ((signvalue) ? 1 : 0);
- zpadlen = max - fplace;
- if (zpadlen < 0)
- zpadlen = 0;
- if (padlen < 0)
- padlen = 0;
- if (flags & DP_F_MINUS)
- padlen = -padlen; /* Left Justifty */
-
- if ((flags & DP_F_ZERO) && (padlen > 0))
- {
- if (signvalue)
- {
- total += dopr_outch (buffer, currlen, maxlen, signvalue);
- --padlen;
- signvalue = 0;
- }
- while (padlen > 0)
- {
- total += dopr_outch (buffer, currlen, maxlen, '0');
- --padlen;
- }
- }
- while (padlen > 0)
- {
- total += dopr_outch (buffer, currlen, maxlen, ' ');
- --padlen;
- }
- if (signvalue)
- total += dopr_outch (buffer, currlen, maxlen, signvalue);
-
- while (iplace > 0)
- total += dopr_outch (buffer, currlen, maxlen, iconvert[--iplace]);
-
- /*
- * Decimal point. This should probably use locale to find the correct
- * char to print out.
- */
- if (max > 0)
- {
- total += dopr_outch (buffer, currlen, maxlen, '.');
-
- while (fplace > 0)
- total += dopr_outch (buffer, currlen, maxlen, fconvert[--fplace]);
- }
-
- while (zpadlen > 0)
- {
- total += dopr_outch (buffer, currlen, maxlen, '0');
- --zpadlen;
- }
-
- while (padlen < 0)
- {
- total += dopr_outch (buffer, currlen, maxlen, ' ');
- ++padlen;
- }
-
- return total;
-}
-
-static int dopr_outch (char *buffer, size_t *currlen, size_t maxlen, char c)
-{
- if (*currlen + 1 < maxlen)
- buffer[(*currlen)++] = c;
- return 1;
-}
-
-#ifndef HAVE_VSNPRINTF
-int vsnprintf (char *str, size_t count, const char *fmt, va_list args)
-{
- if (str != NULL)
- str[0] = 0;
- return dopr(str, count, fmt, args);
-}
-#endif /* !HAVE_VSNPRINTF */
-
-#ifndef HAVE_SNPRINTF
-/* VARARGS3 */
-#ifdef HAVE_STDARGS
-int snprintf (char *str,size_t count,const char *fmt,...)
-#else
-int snprintf (va_alist) va_dcl
-#endif
-{
-#ifndef HAVE_STDARGS
- char *str;
- size_t count;
- char *fmt;
-#endif
- VA_LOCAL_DECL;
- int total;
-
- VA_START (fmt);
- VA_SHIFT (str, char *);
- VA_SHIFT (count, size_t );
- VA_SHIFT (fmt, char *);
- total = vsnprintf(str, count, fmt, ap);
- VA_END;
- return total;
-}
-#endif /* !HAVE_SNPRINTF */
-
-#ifdef TEST_SNPRINTF
-#ifndef LONG_STRING
-#define LONG_STRING 1024
-#endif
-int main (void)
-{
- char buf1[LONG_STRING];
- char buf2[LONG_STRING];
- char *fp_fmt[] = {
- "%-1.5f",
- "%1.5f",
- "%123.9f",
- "%10.5f",
- "% 10.5f",
- "%+22.9f",
- "%+4.9f",
- "%01.3f",
- "%4f",
- "%3.1f",
- "%3.2f",
- "%.0f",
- "%.1f",
- NULL
- };
- double fp_nums[] = { -1.5, 134.21, 91340.2, 341.1234, 0203.9, 0.96, 0.996,
- 0.9996, 1.996, 4.136, 0};
- char *int_fmt[] = {
- "%-1.5d",
- "%1.5d",
- "%123.9d",
- "%5.5d",
- "%10.5d",
- "% 10.5d",
- "%+22.33d",
- "%01.3d",
- "%4d",
- NULL
- };
- long int_nums[] = { -1, 134, 91340, 341, 0203, 0};
- int x, y;
- int fail = 0;
- int num = 0;
-
- printf ("Testing snprintf format codes against system sprintf...\n");
-
- for (x = 0; fp_fmt[x] != NULL ; x++)
- for (y = 0; fp_nums[y] != 0 ; y++)
- {
- snprintf (buf1, sizeof (buf1), fp_fmt[x], fp_nums[y]);
- sprintf (buf2, fp_fmt[x], fp_nums[y]);
- if (strcmp (buf1, buf2))
- {
- printf("snprintf doesn't match Format: %s\n\tsnprintf = %s\n\tsprintf = %s\n",
- fp_fmt[x], buf1, buf2);
- fail++;
- }
- num++;
- }
-
- for (x = 0; int_fmt[x] != NULL ; x++)
- for (y = 0; int_nums[y] != 0 ; y++)
- {
- snprintf (buf1, sizeof (buf1), int_fmt[x], int_nums[y]);
- sprintf (buf2, int_fmt[x], int_nums[y]);
- if (strcmp (buf1, buf2))
- {
- printf("snprintf doesn't match Format: %s\n\tsnprintf = %s\n\tsprintf = %s\n",
- int_fmt[x], buf1, buf2);
- fail++;
- }
- num++;
- }
- printf ("%d tests failed out of %d.\n", fail, num);
-}
-#endif /* SNPRINTF_TEST */
-
-#endif /* !HAVE_SNPRINTF */
generated by cgit (git 2.34.1) at 2024-05-01 21:17:09 +0000