1998-08-20 08:19:55 +00:00
|
|
|
/*-
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|
|
* Copyright (c) 1986, 1988, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)subr_prf.c 8.3 (Berkeley) 1/21/94
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*/
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2001-09-30 22:28:01 +00:00
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#include <sys/cdefs.h>
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|
|
__FBSDID("$FreeBSD$");
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|
|
|
1998-08-20 08:19:55 +00:00
|
|
|
/*
|
|
|
|
* Standaloneified version of the FreeBSD kernel printf family.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <sys/types.h>
|
2003-04-06 05:25:48 +00:00
|
|
|
#include <sys/stddef.h>
|
|
|
|
#include <sys/stdint.h>
|
2002-09-25 04:06:37 +00:00
|
|
|
#include <limits.h>
|
1999-12-27 08:45:14 +00:00
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|
#include <string.h>
|
1998-08-20 08:19:55 +00:00
|
|
|
#include "stand.h"
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|
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|
|
|
|
/*
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|
|
* Note that stdarg.h and the ANSI style va_start macro is used for both
|
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|
|
* ANSI and traditional C compilers.
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|
|
|
*/
|
|
|
|
#include <machine/stdarg.h>
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|
|
|
2003-04-06 05:25:48 +00:00
|
|
|
#define MAXNBUF (sizeof(intmax_t) * CHAR_BIT + 1)
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|
|
|
|
2006-03-09 22:37:34 +00:00
|
|
|
static char *ksprintn (char *buf, uintmax_t num, int base, int *len, int upper);
|
1998-08-20 08:19:55 +00:00
|
|
|
static int kvprintf(char const *fmt, void (*func)(int), void *arg, int radix, va_list ap);
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|
|
|
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|
|
int
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|
|
printf(const char *fmt, ...)
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|
|
{
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|
|
va_list ap;
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|
|
int retval;
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|
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va_start(ap, fmt);
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retval = kvprintf(fmt, putchar, NULL, 10, ap);
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|
|
va_end(ap);
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|
|
return retval;
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|
|
}
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|
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|
|
|
|
void
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|
|
vprintf(const char *fmt, va_list ap)
|
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|
|
{
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|
|
|
kvprintf(fmt, putchar, NULL, 10, ap);
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|
|
}
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|
|
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|
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int
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|
|
sprintf(char *buf, const char *cfmt, ...)
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|
|
{
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|
|
int retval;
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|
|
va_list ap;
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|
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|
|
va_start(ap, cfmt);
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|
|
retval = kvprintf(cfmt, NULL, (void *)buf, 10, ap);
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|
|
buf[retval] = '\0';
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|
|
va_end(ap);
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|
|
return retval;
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|
|
|
}
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|
|
|
|
1998-11-01 09:31:08 +00:00
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|
|
void
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|
|
vsprintf(char *buf, const char *cfmt, va_list ap)
|
|
|
|
{
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|
|
|
int retval;
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|
|
|
|
|
|
retval = kvprintf(cfmt, NULL, (void *)buf, 10, ap);
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|
|
buf[retval] = '\0';
|
|
|
|
}
|
|
|
|
|
1998-08-20 08:19:55 +00:00
|
|
|
/*
|
2003-04-06 05:25:48 +00:00
|
|
|
* Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse
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|
|
* order; return an optional length and a pointer to the last character
|
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|
|
* written in the buffer (i.e., the first character of the string).
|
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|
|
* The buffer pointed to by `nbuf' must have length >= MAXNBUF.
|
1998-08-20 08:19:55 +00:00
|
|
|
*/
|
|
|
|
static char *
|
2006-03-09 22:37:34 +00:00
|
|
|
ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper)
|
2003-04-06 05:25:48 +00:00
|
|
|
{
|
2006-03-09 22:37:34 +00:00
|
|
|
char *p, c;
|
1998-08-20 08:19:55 +00:00
|
|
|
|
2003-04-06 05:25:48 +00:00
|
|
|
p = nbuf;
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|
|
*p = '\0';
|
1998-08-20 08:19:55 +00:00
|
|
|
do {
|
2006-03-09 22:37:34 +00:00
|
|
|
c = hex2ascii(num % base);
|
|
|
|
*++p = upper ? toupper(c) : c;
|
2003-04-06 05:25:48 +00:00
|
|
|
} while (num /= base);
|
1998-08-20 08:19:55 +00:00
|
|
|
if (lenp)
|
2003-04-06 05:25:48 +00:00
|
|
|
*lenp = p - nbuf;
|
1998-08-20 08:19:55 +00:00
|
|
|
return (p);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Scaled down version of printf(3).
|
|
|
|
*
|
|
|
|
* Two additional formats:
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|
|
*
|
|
|
|
* The format %b is supported to decode error registers.
|
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|
|
* Its usage is:
|
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|
|
*
|
|
|
|
* printf("reg=%b\n", regval, "<base><arg>*");
|
|
|
|
*
|
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|
|
* where <base> is the output base expressed as a control character, e.g.
|
|
|
|
* \10 gives octal; \20 gives hex. Each arg is a sequence of characters,
|
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|
|
* the first of which gives the bit number to be inspected (origin 1), and
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|
|
* the next characters (up to a control character, i.e. a character <= 32),
|
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|
|
* give the name of the register. Thus:
|
|
|
|
*
|
|
|
|
* kvprintf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n");
|
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|
|
*
|
|
|
|
* would produce output:
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|
|
*
|
|
|
|
* reg=3<BITTWO,BITONE>
|
|
|
|
*
|
|
|
|
* XXX: %D -- Hexdump, takes pointer and separator string:
|
|
|
|
* ("%6D", ptr, ":") -> XX:XX:XX:XX:XX:XX
|
|
|
|
* ("%*D", len, ptr, " " -> XX XX XX XX ...
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
kvprintf(char const *fmt, void (*func)(int), void *arg, int radix, va_list ap)
|
|
|
|
{
|
2010-07-09 05:25:14 +00:00
|
|
|
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
|
1998-08-20 08:19:55 +00:00
|
|
|
#define PCHAR(c) {int cc=(c); if (func) (*func)(cc); else *d++ = cc; retval++; }
|
2003-04-06 05:25:48 +00:00
|
|
|
char nbuf[MAXNBUF];
|
|
|
|
char *d;
|
|
|
|
const char *p, *percent, *q;
|
1998-08-20 08:19:55 +00:00
|
|
|
u_char *up;
|
|
|
|
int ch, n;
|
2003-04-06 05:25:48 +00:00
|
|
|
uintmax_t num;
|
|
|
|
int base, lflag, qflag, tmp, width, ladjust, sharpflag, neg, sign, dot;
|
2010-07-08 22:21:18 +00:00
|
|
|
int cflag, hflag, jflag, tflag, zflag;
|
2006-03-09 22:37:34 +00:00
|
|
|
int dwidth, upper;
|
1998-08-20 08:19:55 +00:00
|
|
|
char padc;
|
2010-07-08 22:21:18 +00:00
|
|
|
int stop = 0, retval = 0;
|
1998-08-20 08:19:55 +00:00
|
|
|
|
2003-04-06 05:25:48 +00:00
|
|
|
num = 0;
|
1998-08-20 08:19:55 +00:00
|
|
|
if (!func)
|
|
|
|
d = (char *) arg;
|
|
|
|
else
|
|
|
|
d = NULL;
|
|
|
|
|
|
|
|
if (fmt == NULL)
|
|
|
|
fmt = "(fmt null)\n";
|
|
|
|
|
|
|
|
if (radix < 2 || radix > 36)
|
|
|
|
radix = 10;
|
|
|
|
|
|
|
|
for (;;) {
|
|
|
|
padc = ' ';
|
|
|
|
width = 0;
|
2010-07-08 22:21:18 +00:00
|
|
|
while ((ch = (u_char)*fmt++) != '%' || stop) {
|
2003-04-06 05:25:48 +00:00
|
|
|
if (ch == '\0')
|
|
|
|
return (retval);
|
1998-08-20 08:19:55 +00:00
|
|
|
PCHAR(ch);
|
|
|
|
}
|
2003-04-06 05:25:48 +00:00
|
|
|
percent = fmt - 1;
|
|
|
|
qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0;
|
2006-03-09 22:37:34 +00:00
|
|
|
sign = 0; dot = 0; dwidth = 0; upper = 0;
|
2010-07-08 22:21:18 +00:00
|
|
|
cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0;
|
1998-08-20 08:19:55 +00:00
|
|
|
reswitch: switch (ch = (u_char)*fmt++) {
|
|
|
|
case '.':
|
|
|
|
dot = 1;
|
|
|
|
goto reswitch;
|
|
|
|
case '#':
|
|
|
|
sharpflag = 1;
|
|
|
|
goto reswitch;
|
|
|
|
case '+':
|
|
|
|
sign = 1;
|
|
|
|
goto reswitch;
|
|
|
|
case '-':
|
|
|
|
ladjust = 1;
|
|
|
|
goto reswitch;
|
|
|
|
case '%':
|
|
|
|
PCHAR(ch);
|
|
|
|
break;
|
|
|
|
case '*':
|
|
|
|
if (!dot) {
|
|
|
|
width = va_arg(ap, int);
|
|
|
|
if (width < 0) {
|
|
|
|
ladjust = !ladjust;
|
|
|
|
width = -width;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
dwidth = va_arg(ap, int);
|
|
|
|
}
|
|
|
|
goto reswitch;
|
|
|
|
case '0':
|
|
|
|
if (!dot) {
|
|
|
|
padc = '0';
|
|
|
|
goto reswitch;
|
|
|
|
}
|
|
|
|
case '1': case '2': case '3': case '4':
|
|
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
|
|
for (n = 0;; ++fmt) {
|
|
|
|
n = n * 10 + ch - '0';
|
|
|
|
ch = *fmt;
|
|
|
|
if (ch < '0' || ch > '9')
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (dot)
|
|
|
|
dwidth = n;
|
|
|
|
else
|
|
|
|
width = n;
|
|
|
|
goto reswitch;
|
|
|
|
case 'b':
|
2010-07-08 22:21:18 +00:00
|
|
|
num = (u_int)va_arg(ap, int);
|
1998-08-20 08:19:55 +00:00
|
|
|
p = va_arg(ap, char *);
|
2006-03-09 22:37:34 +00:00
|
|
|
for (q = ksprintn(nbuf, num, *p++, NULL, 0); *q;)
|
1998-08-20 08:19:55 +00:00
|
|
|
PCHAR(*q--);
|
|
|
|
|
2003-04-06 05:25:48 +00:00
|
|
|
if (num == 0)
|
1998-08-20 08:19:55 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
for (tmp = 0; *p;) {
|
|
|
|
n = *p++;
|
2003-04-06 05:25:48 +00:00
|
|
|
if (num & (1 << (n - 1))) {
|
1998-08-20 08:19:55 +00:00
|
|
|
PCHAR(tmp ? ',' : '<');
|
|
|
|
for (; (n = *p) > ' '; ++p)
|
|
|
|
PCHAR(n);
|
|
|
|
tmp = 1;
|
|
|
|
} else
|
|
|
|
for (; *p > ' '; ++p)
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
if (tmp)
|
|
|
|
PCHAR('>');
|
|
|
|
break;
|
|
|
|
case 'c':
|
|
|
|
PCHAR(va_arg(ap, int));
|
|
|
|
break;
|
|
|
|
case 'D':
|
|
|
|
up = va_arg(ap, u_char *);
|
|
|
|
p = va_arg(ap, char *);
|
|
|
|
if (!width)
|
|
|
|
width = 16;
|
|
|
|
while(width--) {
|
|
|
|
PCHAR(hex2ascii(*up >> 4));
|
|
|
|
PCHAR(hex2ascii(*up & 0x0f));
|
|
|
|
up++;
|
|
|
|
if (width)
|
|
|
|
for (q=p;*q;q++)
|
|
|
|
PCHAR(*q);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'd':
|
2003-04-06 05:25:48 +00:00
|
|
|
case 'i':
|
1998-08-20 08:19:55 +00:00
|
|
|
base = 10;
|
2003-04-06 05:25:48 +00:00
|
|
|
sign = 1;
|
|
|
|
goto handle_sign;
|
2010-07-08 22:21:18 +00:00
|
|
|
case 'h':
|
|
|
|
if (hflag) {
|
|
|
|
hflag = 0;
|
|
|
|
cflag = 1;
|
|
|
|
} else
|
|
|
|
hflag = 1;
|
|
|
|
goto reswitch;
|
2003-04-06 05:25:48 +00:00
|
|
|
case 'j':
|
|
|
|
jflag = 1;
|
|
|
|
goto reswitch;
|
1998-08-20 08:19:55 +00:00
|
|
|
case 'l':
|
2003-04-06 05:25:48 +00:00
|
|
|
if (lflag) {
|
|
|
|
lflag = 0;
|
|
|
|
qflag = 1;
|
|
|
|
} else
|
|
|
|
lflag = 1;
|
1998-08-20 08:19:55 +00:00
|
|
|
goto reswitch;
|
|
|
|
case 'n':
|
2003-04-06 05:25:48 +00:00
|
|
|
if (jflag)
|
|
|
|
*(va_arg(ap, intmax_t *)) = retval;
|
|
|
|
else if (qflag)
|
|
|
|
*(va_arg(ap, quad_t *)) = retval;
|
|
|
|
else if (lflag)
|
|
|
|
*(va_arg(ap, long *)) = retval;
|
|
|
|
else if (zflag)
|
|
|
|
*(va_arg(ap, size_t *)) = retval;
|
2010-07-08 22:21:18 +00:00
|
|
|
else if (hflag)
|
|
|
|
*(va_arg(ap, short *)) = retval;
|
|
|
|
else if (cflag)
|
|
|
|
*(va_arg(ap, char *)) = retval;
|
2003-04-06 05:25:48 +00:00
|
|
|
else
|
|
|
|
*(va_arg(ap, int *)) = retval;
|
|
|
|
break;
|
1998-08-20 08:19:55 +00:00
|
|
|
case 'o':
|
|
|
|
base = 8;
|
2003-04-06 05:25:48 +00:00
|
|
|
goto handle_nosign;
|
1998-08-20 08:19:55 +00:00
|
|
|
case 'p':
|
|
|
|
base = 16;
|
2003-04-06 05:25:48 +00:00
|
|
|
sharpflag = (width == 0);
|
|
|
|
sign = 0;
|
|
|
|
num = (uintptr_t)va_arg(ap, void *);
|
1998-08-20 08:19:55 +00:00
|
|
|
goto number;
|
2003-04-06 05:25:48 +00:00
|
|
|
case 'q':
|
|
|
|
qflag = 1;
|
|
|
|
goto reswitch;
|
|
|
|
case 'r':
|
|
|
|
base = radix;
|
|
|
|
if (sign)
|
|
|
|
goto handle_sign;
|
|
|
|
goto handle_nosign;
|
1998-08-20 08:19:55 +00:00
|
|
|
case 's':
|
|
|
|
p = va_arg(ap, char *);
|
|
|
|
if (p == NULL)
|
|
|
|
p = "(null)";
|
|
|
|
if (!dot)
|
|
|
|
n = strlen (p);
|
|
|
|
else
|
|
|
|
for (n = 0; n < dwidth && p[n]; n++)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
width -= n;
|
|
|
|
|
|
|
|
if (!ladjust && width > 0)
|
|
|
|
while (width--)
|
|
|
|
PCHAR(padc);
|
|
|
|
while (n--)
|
|
|
|
PCHAR(*p++);
|
|
|
|
if (ladjust && width > 0)
|
|
|
|
while (width--)
|
|
|
|
PCHAR(padc);
|
|
|
|
break;
|
2003-04-06 05:25:48 +00:00
|
|
|
case 't':
|
|
|
|
tflag = 1;
|
|
|
|
goto reswitch;
|
1998-08-20 08:19:55 +00:00
|
|
|
case 'u':
|
|
|
|
base = 10;
|
2003-04-06 05:25:48 +00:00
|
|
|
goto handle_nosign;
|
|
|
|
case 'X':
|
2006-03-09 22:37:34 +00:00
|
|
|
upper = 1;
|
|
|
|
case 'x':
|
2003-04-06 05:25:48 +00:00
|
|
|
base = 16;
|
|
|
|
goto handle_nosign;
|
|
|
|
case 'y':
|
1998-08-20 08:19:55 +00:00
|
|
|
base = 16;
|
2003-04-06 05:25:48 +00:00
|
|
|
sign = 1;
|
|
|
|
goto handle_sign;
|
|
|
|
case 'z':
|
|
|
|
zflag = 1;
|
|
|
|
goto reswitch;
|
|
|
|
handle_nosign:
|
|
|
|
sign = 0;
|
|
|
|
if (jflag)
|
|
|
|
num = va_arg(ap, uintmax_t);
|
|
|
|
else if (qflag)
|
|
|
|
num = va_arg(ap, u_quad_t);
|
|
|
|
else if (tflag)
|
|
|
|
num = va_arg(ap, ptrdiff_t);
|
|
|
|
else if (lflag)
|
|
|
|
num = va_arg(ap, u_long);
|
|
|
|
else if (zflag)
|
|
|
|
num = va_arg(ap, size_t);
|
2010-07-08 22:21:18 +00:00
|
|
|
else if (hflag)
|
|
|
|
num = (u_short)va_arg(ap, int);
|
|
|
|
else if (cflag)
|
|
|
|
num = (u_char)va_arg(ap, int);
|
2003-04-06 05:25:48 +00:00
|
|
|
else
|
|
|
|
num = va_arg(ap, u_int);
|
|
|
|
goto number;
|
|
|
|
handle_sign:
|
|
|
|
if (jflag)
|
|
|
|
num = va_arg(ap, intmax_t);
|
|
|
|
else if (qflag)
|
|
|
|
num = va_arg(ap, quad_t);
|
|
|
|
else if (tflag)
|
|
|
|
num = va_arg(ap, ptrdiff_t);
|
|
|
|
else if (lflag)
|
|
|
|
num = va_arg(ap, long);
|
|
|
|
else if (zflag)
|
2008-11-18 00:01:16 +00:00
|
|
|
num = va_arg(ap, ssize_t);
|
2010-07-08 22:21:18 +00:00
|
|
|
else if (hflag)
|
|
|
|
num = (short)va_arg(ap, int);
|
|
|
|
else if (cflag)
|
|
|
|
num = (char)va_arg(ap, int);
|
2003-04-06 05:25:48 +00:00
|
|
|
else
|
|
|
|
num = va_arg(ap, int);
|
|
|
|
number:
|
|
|
|
if (sign && (intmax_t)num < 0) {
|
1998-08-20 08:19:55 +00:00
|
|
|
neg = 1;
|
2003-04-06 05:25:48 +00:00
|
|
|
num = -(intmax_t)num;
|
1998-08-20 08:19:55 +00:00
|
|
|
}
|
2010-07-08 22:21:18 +00:00
|
|
|
p = ksprintn(nbuf, num, base, &n, upper);
|
|
|
|
tmp = 0;
|
2003-04-06 05:25:48 +00:00
|
|
|
if (sharpflag && num != 0) {
|
1998-08-20 08:19:55 +00:00
|
|
|
if (base == 8)
|
|
|
|
tmp++;
|
|
|
|
else if (base == 16)
|
|
|
|
tmp += 2;
|
|
|
|
}
|
|
|
|
if (neg)
|
|
|
|
tmp++;
|
|
|
|
|
2010-07-08 22:21:18 +00:00
|
|
|
if (!ladjust && padc == '0')
|
|
|
|
dwidth = width - tmp;
|
|
|
|
width -= tmp + MAX(dwidth, n);
|
|
|
|
dwidth -= n;
|
|
|
|
if (!ladjust)
|
|
|
|
while (width-- > 0)
|
|
|
|
PCHAR(' ');
|
1998-08-20 08:19:55 +00:00
|
|
|
if (neg)
|
|
|
|
PCHAR('-');
|
2003-04-06 05:25:48 +00:00
|
|
|
if (sharpflag && num != 0) {
|
1998-08-20 08:19:55 +00:00
|
|
|
if (base == 8) {
|
|
|
|
PCHAR('0');
|
|
|
|
} else if (base == 16) {
|
|
|
|
PCHAR('0');
|
|
|
|
PCHAR('x');
|
|
|
|
}
|
|
|
|
}
|
2010-07-08 22:21:18 +00:00
|
|
|
while (dwidth-- > 0)
|
|
|
|
PCHAR('0');
|
1998-08-20 08:19:55 +00:00
|
|
|
|
|
|
|
while (*p)
|
|
|
|
PCHAR(*p--);
|
|
|
|
|
2010-07-08 22:21:18 +00:00
|
|
|
if (ladjust)
|
|
|
|
while (width-- > 0)
|
|
|
|
PCHAR(' ');
|
1998-08-20 08:19:55 +00:00
|
|
|
|
|
|
|
break;
|
|
|
|
default:
|
2003-04-06 05:25:48 +00:00
|
|
|
while (percent < fmt)
|
|
|
|
PCHAR(*percent++);
|
2010-07-08 22:21:18 +00:00
|
|
|
/*
|
|
|
|
* Since we ignore an formatting argument it is no
|
|
|
|
* longer safe to obey the remaining formatting
|
|
|
|
* arguments as the arguments will no longer match
|
|
|
|
* the format specs.
|
|
|
|
*/
|
|
|
|
stop = 1;
|
1998-08-20 08:19:55 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#undef PCHAR
|
|
|
|
}
|