* Copyright (c) 1991 The Regents of the University of California.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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
* from: @(#)printf.c 5.6 (Berkeley) 5/25/91
* Scaled down version of printf(3).
* The format %b is supported to decode error registers.
* printf("reg=%b\n", regval, "<base><arg>*");
* 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,
* the first of which gives the bit number to be inspected (origin 1), and
* the next characters (up to a control character, i.e. a character <= 32),
* give the name of the register. Thus:
* printf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n");
* Note that stdarg.h and the ANSI style va_start macro is used for both
* ANSI and traditional C compilers.
#include <machine/stdarg.h>
static void kprintn
__P((u_long
, int));
printf(const char *fmt
, ...)
printf(fmt
/* , va_alist */)
while ((ch
= *fmt
++) != '%') {
reswitch
: switch (ch
= *fmt
++) {
for (set
= 0; n
= *p
++;) {
if (ul
& (1 << (n
- 1))) {
putchar(set
? ',' : '<');
for (; (n
= *p
) > ' '; ++p
)
va_arg(ap
, long) : va_arg(ap
, int);
va_arg(ap
, u_long
) : va_arg(ap
, u_int
);
va_arg(ap
, u_long
) : va_arg(ap
, u_int
);
va_arg(ap
, u_long
) : va_arg(ap
, u_int
);
/* hold a long in base 8 */
char *p
, buf
[(sizeof(long) * NBBY
/ 3) + 1];
*p
++ = "0123456789abcdef"[ul
% base
];