-/*
- * 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
* 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.
- *
- * Damien Miller (djm@mindrot.org) Jan 2007
- * Fix integer overflows in return value.
- * Make formatting quite a bit faster by inlining dopr_outch()
+ * Ben Lindstrom <mouring@eviladmin.org> 09/27/00 for OpenSSH
+ * Welcome to the world of %lld and %qd support. With other
+ * long long support. This is needed for sftp-server to work
+ * right.
*
+ * Ben Lindstrom <mouring@eviladmin.org> 02/12/01 for OpenSSH
+ * Removed all hint of VARARGS stuff and banished it to the void,
+ * and did a bit of KNF style work to make things a bit more
+ * acceptable. Consider stealing from mutt or enlightenment.
**************************************************************/
#include "includes.h"
+RCSID("$Id$");
+
#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)
-#include <ctype.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-#include <errno.h>
-
-#ifdef HAVE_LONG_DOUBLE
-# define LDOUBLE long double
-#else
-# define LDOUBLE double
-#endif
+static void
+dopr(char *buffer, size_t maxlen, const char *format, va_list args);
-#ifdef HAVE_LONG_LONG
-# define LLONG long long
-#else
-# define LLONG long
-#endif
+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, long double 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
#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
+#define DP_C_SHORT 1
+#define DP_C_LONG 2
+#define DP_C_LDOUBLE 3
+#define DP_C_LONG_LONG 4
-#define DOPR_OUTCH(buf, pos, buflen, thechar) \
- do { \
- if (pos + 1 >= INT_MAX) { \
- errno = ERANGE; \
- return -1; \
- } \
- if (pos < buflen) \
- buf[pos] = thechar; \
- (pos)++; \
- } while (0)
-
-static int dopr(char *buffer, size_t maxlen, const char *format,
- va_list args_in);
-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,
- LLONG 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(char *buffer, size_t maxlen, const char *format, va_list args_in)
+#define char_to_int(p) (p - '0')
+#define abs_val(p) (p < 0 ? -p : p)
+
+
+static void
+dopr(char *buffer, size_t maxlen, const char *format, va_list args)
{
- 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;
+ char ch;
+ long value;
+ long double fvalue;
+ int min = 0;
+ int max = -1;
+ int state = DP_S_DEFAULT;
+ int flags = 0;
+ int cflags = 0;
+ size_t currlen = 0;
+
ch = *format++;
-
+
while (state != DP_S_DONE) {
- if (ch == '\0')
+ if ((ch == '\0') || (currlen >= maxlen))
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;
+ case DP_S_DEFAULT:
+ if (ch == '%')
+ state = DP_S_FLAGS;
+ else
+ dopr_outch(buffer, &currlen, maxlen, ch);
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++;
+ 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 '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);
- if (fmtint(buffer, &currlen, maxlen,
- value, 10, min, max, flags) == -1)
- return -1;
- 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);
- if (fmtint(buffer, &currlen, maxlen, value,
- 8, min, max, flags) == -1)
- return -1;
- 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);
- if (fmtint(buffer, &currlen, maxlen, value,
- 10, min, max, flags) == -1)
- return -1;
- 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);
- if (fmtint(buffer, &currlen, maxlen, value,
- 16, min, max, flags) == -1)
- return -1;
- break;
- case 'f':
- if (cflags == DP_C_LDOUBLE)
- fvalue = va_arg (args, LDOUBLE);
- else
- fvalue = va_arg (args, double);
- if (fmtfp(buffer, &currlen, maxlen, fvalue,
- min, max, flags) == -1)
- return -1;
- 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);
- if (fmtfp(buffer, &currlen, maxlen, fvalue,
- min, max, flags) == -1)
- return -1;
+ 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 'G':
- flags |= DP_F_UP;
- case 'g':
- if (cflags == DP_C_LDOUBLE)
- fvalue = va_arg (args, LDOUBLE);
- else
- fvalue = va_arg (args, double);
- if (fmtfp(buffer, &currlen, maxlen, fvalue,
- min, max, flags) == -1)
- return -1;
+ case DP_S_DOT:
+ if (ch == '.') {
+ state = DP_S_MAX;
+ ch = *format++;
+ } else
+ state = DP_S_MOD;
break;
- case 'c':
- DOPR_OUTCH(buffer, currlen, maxlen,
- va_arg (args, int));
+ 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 's':
- strvalue = va_arg (args, char *);
- if (!strvalue) strvalue = "(NULL)";
- if (max == -1) {
- max = strlen(strvalue);
+ 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') {
+ cflags = DP_C_LONG_LONG;
+ ch = *format++;
+ }
+ break;
+ case 'q':
+ cflags = DP_C_LONG_LONG;
+ ch = *format++;
+ break;
+ case 'L':
+ cflags = DP_C_LDOUBLE;
+ ch = *format++;
+ break;
+ default:
+ break;
}
- if (min > 0 && max >= 0 && min > max) max = min;
- if (fmtstr(buffer, &currlen, maxlen,
- strvalue, flags, min, max) == -1)
- return -1;
+ state = DP_S_CONV;
break;
- case 'p':
- strvalue = va_arg (args, void *);
- if (fmtint(buffer, &currlen, maxlen,
- (long) strvalue, 16, min, max, flags) == -1)
- return -1;
- 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;
+ 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_LONG_LONG)
+ value = va_arg (args, long long);
+ 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 = va_arg(args, unsigned long int);
+ else if (cflags == DP_C_LONG_LONG)
+ value = va_arg(args, unsigned long long);
+ else
+ value = 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 = va_arg(args, unsigned long int);
+ else if (cflags == DP_C_LONG_LONG)
+ value = va_arg(args, unsigned long long);
+ else
+ value = 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 = va_arg(args, unsigned long int);
+ else if (cflags == DP_C_LONG_LONG)
+ value = va_arg(args, unsigned long long);
+ else
+ value = 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, long double);
+ 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, long double);
+ else
+ fvalue = va_arg(args, double);
+ break;
+ case 'G':
+ flags |= DP_F_UP;
+ case 'g':
+ if (cflags == DP_C_LDOUBLE)
+ fvalue = va_arg(args, long double);
+ 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 (max < 0)
+ max = maxlen; /* ie, no max */
+ 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 = currlen;
+ } else if (cflags == DP_C_LONG_LONG) {
+ long long *num;
+ num = va_arg(args, long long *);
+ *num = 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;
}
- break;
- case '%':
- DOPR_OUTCH(buffer, currlen, maxlen, ch);
- break;
- case 'w':
- /* not supported yet, treat as next char */
ch = *format++;
+ state = DP_S_DEFAULT;
+ flags = cflags = min = 0;
+ max = -1;
break;
- default:
- /* Unknown, skip */
+ case DP_S_DONE:
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 */
+ 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 < INT_MAX ? (int)currlen : -1;
+ if (currlen < maxlen - 1)
+ buffer[currlen] = '\0';
+ else
+ buffer[maxlen - 1] = '\0';
}
-static int
+static void
fmtstr(char *buffer, size_t *currlen, size_t maxlen,
- char *value, int flags, int min, int max)
+ 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) {
+
+ if (value == 0)
value = "<NULL>";
- }
- for (strln = 0; strln < max && value[strln]; ++strln); /* strlen */
+ 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, ' ');
+ dopr_outch(buffer, currlen, maxlen, ' ');
--padlen;
++cnt;
}
while (*value && (cnt < max)) {
- DOPR_OUTCH(buffer, *currlen, maxlen, *value);
- *value++;
+ dopr_outch(buffer, currlen, maxlen, *value++);
++cnt;
}
while ((padlen < 0) && (cnt < max)) {
- DOPR_OUTCH(buffer, *currlen, maxlen, ' ');
+ dopr_outch(buffer, currlen, maxlen, ' ');
++padlen;
++cnt;
}
- return 0;
}
/* Have to handle DP_F_NUM (ie 0x and 0 alternates) */
-static int
+static void
fmtint(char *buffer, size_t *currlen, size_t maxlen,
- LLONG value, int base, int min, int max, int flags)
+ long value, int base, int min, int max, int flags)
{
- int signvalue = 0;
- unsigned LLONG uvalue;
+ unsigned long uvalue;
char convert[20];
+ int signvalue = 0;
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 ) {
+
+ 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 = ' ';
- }
+ } 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? */
+ if (flags & DP_F_UP)
+ caps = 1; /* Should characters be upper case? */
do {
convert[place++] =
(caps? "0123456789ABCDEF":"0123456789abcdef")
- [uvalue % (unsigned)base ];
+ [uvalue % (unsigned)base];
uvalue = (uvalue / (unsigned)base );
- } while(uvalue && (place < 20));
- if (place == 20) place--;
+ } 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 (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, ' ');
+ dopr_outch(buffer, currlen, maxlen, ' ');
--spadlen;
}
/* Sign */
if (signvalue)
- DOPR_OUTCH(buffer, *currlen, maxlen, signvalue);
+ dopr_outch(buffer, currlen, maxlen, signvalue);
/* Zeros */
if (zpadlen > 0) {
while (zpadlen > 0) {
- DOPR_OUTCH(buffer, *currlen, maxlen, '0');
+ dopr_outch(buffer, currlen, maxlen, '0');
--zpadlen;
}
}
/* Digits */
- while (place > 0) {
- --place;
- DOPR_OUTCH(buffer, *currlen, maxlen, convert[place]);
- }
+ while (place > 0)
+ dopr_outch(buffer, currlen, maxlen, convert[--place]);
/* Left Justified spaces */
while (spadlen < 0) {
- DOPR_OUTCH(buffer, *currlen, maxlen, ' ');
+ dopr_outch (buffer, currlen, maxlen, ' ');
++spadlen;
}
- return 0;
}
-static LDOUBLE abs_val(LDOUBLE value)
+static long double
+pow10(int exp)
{
- LDOUBLE result = value;
-
- if (value < 0)
- result = -value;
-
- return result;
-}
+ long double result = 1;
-static LDOUBLE POW10(int val)
-{
- LDOUBLE result = 1;
-
- while (val) {
+ while (exp) {
result *= 10;
- val--;
+ exp--;
}
return result;
}
-static LLONG ROUND(LDOUBLE value)
+static long
+round(long double 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;
- }
+ long intpart = value;
- 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;
- }
+ value -= intpart;
+ if (value >= 0.5)
+ intpart++;
- (*iptr) = l;
- return x - (*iptr);
+ return intpart;
}
-
-static int
-fmtfp (char *buffer, size_t *currlen, size_t maxlen,
- LDOUBLE fvalue, int min, int max, int flags)
+static void
+fmtfp(char *buffer, size_t *currlen, size_t maxlen, long double fvalue,
+ int min, int max, int flags)
{
+ char iconvert[20];
+ char fconvert[20];
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;
+ long intpart;
+ long fracpart;
+ long double ufvalue;
/*
* AIX manpage says the default is 0, but Solaris says the default
if (max < 0)
max = 6;
- ufvalue = abs_val (fvalue);
+ ufvalue = abs_val(fvalue);
- if (fvalue < 0) {
+ if (fvalue < 0)
signvalue = '-';
- } else {
- if (flags & DP_F_PLUS) { /* Do a sign (+/i) */
- signvalue = '+';
- } else {
- if (flags & DP_F_SPACE)
- 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
+ intpart = ufvalue;
/*
- * Sorry, we only support 16 digits past the decimal because of our
+ * Sorry, we only support 9 digits past the decimal because of our
* conversion method
*/
- if (max > 16)
- max = 16;
+ if (max > 9)
+ max = 9;
/* We "cheat" by converting the fractional part to integer by
* multiplying by a factor of 10
*/
+ fracpart = round((pow10 (max)) * (ufvalue - intpart));
- temp = ufvalue;
- my_modf(temp, &intpart);
-
- fracpart = ROUND((POW10(max)) * (ufvalue - intpart));
-
- if (fracpart >= POW10(max)) {
+ if (fracpart >= pow10 (max)) {
intpart++;
- fracpart -= POW10(max);
+ 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--;
+ (caps? "0123456789ABCDEF":"0123456789abcdef")[intpart % 10];
+ intpart = (intpart / 10);
+ } while(intpart && (iplace < 20));
+ if (iplace == 20)
+ 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--;
- }
+ 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 (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);
+ dopr_outch(buffer, currlen, maxlen, signvalue);
--padlen;
signvalue = 0;
}
while (padlen > 0) {
- DOPR_OUTCH(buffer, *currlen, maxlen, '0');
+ dopr_outch(buffer, currlen, maxlen, '0');
--padlen;
}
}
while (padlen > 0) {
- DOPR_OUTCH(buffer, *currlen, maxlen, ' ');
+ dopr_outch(buffer, currlen, maxlen, ' ');
--padlen;
}
if (signvalue)
- DOPR_OUTCH(buffer, *currlen, maxlen, signvalue);
-
- while (iplace > 0) {
- --iplace;
- DOPR_OUTCH(buffer, *currlen, maxlen, iconvert[iplace]);
- }
+ dopr_outch(buffer, currlen, maxlen, signvalue);
-#ifdef DEBUG_SNPRINTF
- printf("fmtfp: fplace=%d zpadlen=%d\n", fplace, zpadlen);
-#endif
+ while (iplace > 0)
+ 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) {
- DOPR_OUTCH(buffer, *currlen, maxlen, '.');
-
- while (zpadlen > 0) {
- DOPR_OUTCH(buffer, *currlen, maxlen, '0');
- --zpadlen;
- }
+ dopr_outch(buffer, currlen, maxlen, '.');
- while (fplace > 0) {
- --fplace;
- DOPR_OUTCH(buffer, *currlen, maxlen, fconvert[fplace]);
- }
+ while (fplace > 0)
+ dopr_outch(buffer, currlen, maxlen, fconvert[--fplace]);
+
+ while (zpadlen > 0) {
+ dopr_outch(buffer, currlen, maxlen, '0');
+ --zpadlen;
}
while (padlen < 0) {
- DOPR_OUTCH(buffer, *currlen, maxlen, ' ');
+ dopr_outch(buffer, currlen, maxlen, ' ');
++padlen;
}
- return 0;
+}
+
+static void
+dopr_outch(char *buffer, size_t *currlen, size_t maxlen, char c)
+{
+ if (*currlen < maxlen)
+ buffer[(*currlen)++] = c;
}
#endif /* !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF) */
-#if !defined(HAVE_VSNPRINTF)
-int
-vsnprintf (char *str, size_t count, const char *fmt, va_list args)
+#ifndef HAVE_VSNPRINTF
+int
+vsnprintf(char *str, size_t count, const char *fmt, va_list args)
{
- return dopr(str, count, fmt, args);
+ str[0] = 0;
+ dopr(str, count, fmt, args);
+
+ return(strlen(str));
}
-#endif
+#endif /* !HAVE_VSNPRINTF */
-#if !defined(HAVE_SNPRINTF)
-int
-snprintf(char *str, size_t count, SNPRINTF_CONST char *fmt, ...)
+#ifndef HAVE_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);
+ (void) vsnprintf(str, count, fmt, ap);
va_end(ap);
- return ret;
+
+ return(strlen(str));
}
-#endif
+
+#ifdef TEST_SNPRINTF
+int
+main(void)
+{
+#define LONG_STRING 1024
+ 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",
+ 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",
+ "%lld",
+ "%qd",
+ NULL
+ };
+ long long int_nums[] = { -1, 134, 91340, 341, 0203, 0, 9999999 };
+ 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\t"
+ "snprintf = %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\t"
+ "snprintf = %s\n\tsprintf = %s\n",
+ int_fmt[x], buf1, buf2);
+ fail++;
+ }
+ num++;
+ }
+ }
+ printf("%d tests failed out of %d.\n", fail, num);
+ return(0);
+}
+#endif /* SNPRINTF_TEST */
+
+#endif /* !HAVE_SNPRINTF */
andersk / gssapi-openssh.git / blobdiff