[proxmark3-svn] / armsrc / printf.c

/*-
 * Copyright (c) 1986, 1988, 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 * (c) UNIX System Laboratories, Inc.
 * All or some portions of this file are derived from material licensed
 * to the University of California by American Telephone and Telegraph
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
 * the permission of UNIX System Laboratories, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 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.
 * 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
 * SUCH DAMAGE.
 *
 *	@(#)subr_prf.c	8.3 (Berkeley) 1/21/94
 */

#include <stddef.h>
#include <stdarg.h>
#include "printf.h"
#include "util.h"
#include "string.h"

typedef uint32_t uintmax_t;
typedef int32_t intmax_t;

typedef unsigned char u_char;
typedef unsigned int u_int;
typedef unsigned long u_long;
typedef unsigned short u_short;
typedef unsigned long long u_quad_t;
typedef long long quad_t;

typedef int ssize_t;

#define NBBY    8               /* number of bits in a byte */

char const hex2ascii_data[] = "0123456789abcdefghijklmnopqrstuvwxyz";
#define hex2ascii(hex)  (hex2ascii_data[hex])
#define toupper(c)      ((c) - 0x20 * (((c) >= 'a') && ((c) <= 'z')))

/* Max number conversion buffer length: a u_quad_t in base 2, plus NUL byte. */
#define MAXNBUF	(sizeof(intmax_t) * NBBY + 1)

/*
 * Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse
 * order; return an optional length and a pointer to the last character
 * written in the buffer (i.e., the first character of the string).
 * The buffer pointed to by `nbuf' must have length >= MAXNBUF.
 */
static char *
ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper)
{
	char *p, c;

	p = nbuf;
	*p = '\0';
	do {
		c = hex2ascii(num % base);
		*++p = upper ? toupper(c) : c;
	} while (num /= base);
	if (lenp)
		*lenp = p - nbuf;
	return (p);
}

/*
 * Scaled down version of printf(3).
 *
 * Two additional formats:
 *
 * The format %b is supported to decode error registers.
 * Its usage is:
 *
 *	printf("reg=%b\n", regval, "*");
 *
 * where  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:
 *
 *	kvprintf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n");
 *
 * would produce output:
 *
 *	reg=3
 *
 * XXX:  %D  -- Hexdump, takes pointer and separator string:
 *		("%6D", ptr, ":")   -> XX:XX:XX:XX:XX:XX
 *		("%*D", len, ptr, " " -> XX XX XX XX ...
 */
int
kvsprintf(char const *fmt, void *arg, int radix, va_list ap)
{
#define PCHAR(c) {int cc=(c); *d++ = cc; retval++; }
	char nbuf[MAXNBUF];
	char *d;
	const char *p, *percent, *q;
	u_char *up;
	int ch, n;
	uintmax_t num;
	int base, lflag, qflag, tmp, width, ladjust, sharpflag, neg, sign, dot;
	int cflag, hflag, jflag, tflag, zflag;
	int dwidth, upper;
	char padc;
	int stop = 0, retval = 0;

	num = 0;
	d = (char *) arg;

	if (fmt == NULL)
		fmt = "(fmt null)\n";

	if (radix < 2 || radix > 36)
		radix = 10;

	for (;;) {
		padc = ' ';
		width = 0;
		while ((ch = (u_char)*fmt++) != '%' || stop) {
			PCHAR(ch);
			if (ch == '\0')
				return (retval);
		}
		percent = fmt - 1;
		qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0;
		sign = 0; dot = 0; dwidth = 0; upper = 0;
		cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0;
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':
			num = (u_int)va_arg(ap, int);
			p = va_arg(ap, char *);
			for (q = ksprintn(nbuf, num, *p++, NULL, 0); *q;)
				PCHAR(*q--);

			if (num == 0)
				break;

			for (tmp = 0; *p;) {
				n = *p++;
				if (num & (1 << (n - 1))) {
					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':
		case 'i':
			base = 10;
			sign = 1;
			goto handle_sign;
		case 'h':
			if (hflag) {
				hflag = 0;
				cflag = 1;
			} else
				hflag = 1;
			goto reswitch;
		case 'j':
			jflag = 1;
			goto reswitch;
		case 'l':
			if (lflag) {
				lflag = 0;
				qflag = 1;
			} else
				lflag = 1;
			goto reswitch;
		case 'n':
			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;
			else if (hflag)
				*(va_arg(ap, short *)) = retval;
			else if (cflag)
				*(va_arg(ap, char *)) = retval;
			else
				*(va_arg(ap, int *)) = retval;
			break;
		case 'o':
			base = 8;
			goto handle_nosign;
		case 'p':
			base = 16;
			sharpflag = (width == 0);
			sign = 0;
			num = (uintptr_t)va_arg(ap, void *);
			goto number;
		case 'q':
			qflag = 1;
			goto reswitch;
		case 'r':
			base = radix;
			if (sign)
				goto handle_sign;
			goto handle_nosign;
		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;
		case 't':
			tflag = 1;
			goto reswitch;
		case 'u':
			base = 10;
			goto handle_nosign;
		case 'X':
			upper = 1;
		case 'x':
			base = 16;
			goto handle_nosign;
		case 'y':
			base = 16;
			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);
			else if (hflag)
				num = (u_short)va_arg(ap, int);
			else if (cflag)
				num = (u_char)va_arg(ap, int);
			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)
				num = va_arg(ap, ssize_t);
			else if (hflag)
				num = (short)va_arg(ap, int);
			else if (cflag)
				num = (char)va_arg(ap, int);
			else
				num = va_arg(ap, int);
number:
			if (sign && (intmax_t)num < 0) {
				neg = 1;
				num = -(intmax_t)num;
			}
			p = ksprintn(nbuf, num, base, &tmp, upper);
			if (sharpflag && num != 0) {
				if (base == 8)
					tmp++;
				else if (base == 16)
					tmp += 2;
			}
			if (neg)
				tmp++;

			if (!ladjust && padc != '0' && width
			    && (width -= tmp) > 0)
				while (width--)
					PCHAR(padc);
			if (neg)
				PCHAR('-');
			if (sharpflag && num != 0) {
				if (base == 8) {
					PCHAR('0');
				} else if (base == 16) {
					PCHAR('0');
					PCHAR('x');
				}
			}
			if (!ladjust && width && (width -= tmp) > 0)
				while (width--)
					PCHAR(padc);

			while (*p)
				PCHAR(*p--);

			if (ladjust && width && (width -= tmp) > 0)
				while (width--)
					PCHAR(padc);

			break;
		default:
			while (percent < fmt)
				PCHAR(*percent++);
			/*
			 * 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;
			break;
		}
	}
	PCHAR(0);
	return retval;
#undef PCHAR
}

int vsprintf(char *dest, const char *fmt, va_list ap)
{
	return kvsprintf(fmt, dest, 10, ap);
}

int
sprintf(char *dest, const char *fmt, ...)
{
	/* http://www.pagetable.com/?p=298 */
	int retval;
	va_list ap;

	va_start(ap, fmt);
	retval = kvsprintf(fmt, dest, 10, ap);
	va_end(ap);
	return retval;
}
Commit	Line	Data
6f5cb60c	1	/*-
	2	* Copyright (c) 1986, 1988, 1991, 1993
	3	* The Regents of the University of California. All rights reserved.
	4	* (c) UNIX System Laboratories, Inc.
	5	* All or some portions of this file are derived from material licensed
	6	* to the University of California by American Telephone and Telegraph
	7	* Co. or Unix System Laboratories, Inc. and are reproduced herein with
	8	* the permission of UNIX System Laboratories, Inc.
	9	*
	10	* Redistribution and use in source and binary forms, with or without
	11	* modification, are permitted provided that the following conditions
	12	* are met:
	13	* 1. Redistributions of source code must retain the above copyright
	14	* notice, this list of conditions and the following disclaimer.
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in the
	17	* documentation and/or other materials provided with the distribution.
	18	* 4. Neither the name of the University nor the names of its contributors
	19	* may be used to endorse or promote products derived from this software
	20	* without specific prior written permission.
	21	*
	22	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	23	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	24	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	25	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	26	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	27	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	28	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	29	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	30	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	31	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	32	* SUCH DAMAGE.
	33	*
	34	* @(#)subr_prf.c 8.3 (Berkeley) 1/21/94
	35	*/
	36
f7e3ed82	37	#include <stddef.h>
	38	#include <stdarg.h>
	39	#include "printf.h"
	40	#include "util.h"
9ab7a6c7	41	#include "string.h"
f7e3ed82	42
	43	typedef uint32_t uintmax_t;
	44	typedef int32_t intmax_t;
	45
6f5cb60c	46	typedef unsigned char u_char;
	47	typedef unsigned int u_int;
	48	typedef unsigned long u_long;
	49	typedef unsigned short u_short;
	50	typedef unsigned long long u_quad_t;
	51	typedef long long quad_t;
f7e3ed82	52
	53	typedef int ssize_t;
	54
6f5cb60c	55	#define NBBY 8 /* number of bits in a byte */
f7e3ed82	56
6f5cb60c	57	char const hex2ascii_data[] = "0123456789abcdefghijklmnopqrstuvwxyz";
6f5cb60c	58	#define hex2ascii(hex) (hex2ascii_data[hex])
6f5cb60c	59	#define toupper(c) ((c) - 0x20 * (((c) >= 'a') && ((c) <= 'z')))
6f5cb60c	60
	61	/* Max number conversion buffer length: a u_quad_t in base 2, plus NUL byte. */
	62	#define MAXNBUF (sizeof(intmax_t) * NBBY + 1)
	63
	64	/*
	65	* Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse
	66	* order; return an optional length and a pointer to the last character
	67	* written in the buffer (i.e., the first character of the string).
	68	* The buffer pointed to by `nbuf' must have length >= MAXNBUF.
	69	*/
	70	static char *
	71	ksprintn(char nbuf, uintmax_t num, int base, int lenp, int upper)
	72	{
	73	char *p, c;
	74
	75	p = nbuf;
	76	*p = '\0';
	77	do {
	78	c = hex2ascii(num % base);
	79	*++p = upper ? toupper(c) : c;
	80	} while (num /= base);
	81	if (lenp)
	82	*lenp = p - nbuf;
	83	return (p);
	84	}
	85
	86	/*
	87	* Scaled down version of printf(3).
	88	*
	89	* Two additional formats:
	90	*
	91	* The format %b is supported to decode error registers.
	92	* Its usage is:
	93	*
	94	* printf("reg=%b\n", regval, "*");
	95	*
	96	* where is the output base expressed as a control character, e.g.
	97	* \10 gives octal; \20 gives hex. Each arg is a sequence of characters,
	98	* the first of which gives the bit number to be inspected (origin 1), and
	99	* the next characters (up to a control character, i.e. a character <= 32),
	100	* give the name of the register. Thus:
	101	*
	102	* kvprintf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n");
	103	*
	104	* would produce output:
	105	*
	106	* reg=3
	107	*
	108	* XXX: %D -- Hexdump, takes pointer and separator string:
	109	* ("%6D", ptr, ":") -> XX:XX:XX:XX:XX:XX
	110	* ("%*D", len, ptr, " " -> XX XX XX XX ...
	111	*/
	112	int
	113	kvsprintf(char const fmt, void arg, int radix, va_list ap)
	114	{
	115	#define PCHAR(c) {int cc=(c); *d++ = cc; retval++; }
	116	char nbuf[MAXNBUF];
	117	char *d;
	118	const char p, percent, *q;
	119	u_char *up;
	120	int ch, n;
	121	uintmax_t num;
	122	int base, lflag, qflag, tmp, width, ladjust, sharpflag, neg, sign, dot;
	123	int cflag, hflag, jflag, tflag, zflag;
124	int dwidth, upper;
125	char padc;
126	int stop = 0, retval = 0;
127
128	num = 0;
129	d = (char *) arg;
130
131	if (fmt == NULL)
132	fmt = "(fmt null)\n";
133
134	if (radix < 2 \|\| radix > 36)
135	radix = 10;
136
137	for (;;) {
138	padc = ' ';
139	width = 0;
140	while ((ch = (u_char)*fmt++) != '%' \|\| stop) {
141	PCHAR(ch);
142	if (ch == '\0')
143	return (retval);
144	}
145	percent = fmt - 1;
146	qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0;
147	sign = 0; dot = 0; dwidth = 0; upper = 0;
148	cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0;
149	reswitch: switch (ch = (u_char)*fmt++) {
150	case '.':
151	dot = 1;
152	goto reswitch;
153	case '#':
154	sharpflag = 1;
155	goto reswitch;
156	case '+':
157	sign = 1;
158	goto reswitch;
159	case '-':
160	ladjust = 1;
161	goto reswitch;
162	case '%':
163	PCHAR(ch);
164	break;
165	case '*':
166	if (!dot) {
167	width = va_arg(ap, int);
168	if (width < 0) {
169	ladjust = !ladjust;
170	width = -width;
171	}
172	} else {
173	dwidth = va_arg(ap, int);
174	}
175	goto reswitch;
176	case '0':
177	if (!dot) {
178	padc = '0';
179	goto reswitch;
180	}
181	case '1': case '2': case '3': case '4':
182	case '5': case '6': case '7': case '8': case '9':
183	for (n = 0;; ++fmt) {
184	n = n * 10 + ch - '0';
185	ch = *fmt;
186	if (ch < '0' \|\| ch > '9')
187	break;
188	}
189	if (dot)
190	dwidth = n;
191	else
192	width = n;
193	goto reswitch;
194	case 'b':
195	num = (u_int)va_arg(ap, int);
196	p = va_arg(ap, char *);
197	for (q = ksprintn(nbuf, num, p++, NULL, 0); q;)
198	PCHAR(*q--);
199
200	if (num == 0)
201	break;
202
203	for (tmp = 0; *p;) {
204	n = *p++;
205	if (num & (1 << (n - 1))) {
206	PCHAR(tmp ? ',' : '<');
207	for (; (n = *p) > ' '; ++p)
208	PCHAR(n);
209	tmp = 1;
210	} else
211	for (; *p > ' '; ++p)
212	continue;
213	}
214	if (tmp)
215	PCHAR('>');
216	break;
217	case 'c':
218	PCHAR(va_arg(ap, int));
219	break;
220	case 'D':
221	up = va_arg(ap, u_char *);
222	p = va_arg(ap, char *);
223	if (!width)
224	width = 16;
225	while(width--) {
226	PCHAR(hex2ascii(*up >> 4));
227	PCHAR(hex2ascii(*up & 0x0f));
228	up++;
229	if (width)
230	for (q=p;*q;q++)
231	PCHAR(*q);
232	}
233	break;
234	case 'd':
235	case 'i':
236	base = 10;
237	sign = 1;
238	goto handle_sign;
239	case 'h':
240	if (hflag) {
241	hflag = 0;
242	cflag = 1;
243	} else
244	hflag = 1;
245	goto reswitch;
246	case 'j':
247	jflag = 1;
248	goto reswitch;
249	case 'l':
250	if (lflag) {
251	lflag = 0;
252	qflag = 1;
253	} else
254	lflag = 1;
255	goto reswitch;
256	case 'n':
257	if (jflag)
258	(va_arg(ap, intmax_t )) = retval;
259	else if (qflag)
260	(va_arg(ap, quad_t )) = retval;
261	else if (lflag)
262	(va_arg(ap, long )) = retval;
263	else if (zflag)
264	(va_arg(ap, size_t )) = retval;
265	else if (hflag)
266	(va_arg(ap, short )) = retval;
267	else if (cflag)
268	(va_arg(ap, char )) = retval;
269	else
270	(va_arg(ap, int )) = retval;
271	break;
272	case 'o':
273	base = 8;
274	goto handle_nosign;
275	case 'p':
276	base = 16;
277	sharpflag = (width == 0);
278	sign = 0;
279	num = (uintptr_t)va_arg(ap, void *);
280	goto number;
281	case 'q':
282	qflag = 1;
283	goto reswitch;
284	case 'r':
285	base = radix;
286	if (sign)
287	goto handle_sign;
288	goto handle_nosign;
289	case 's':
290	p = va_arg(ap, char *);
291	if (p == NULL)
292	p = "(null)";
293	if (!dot)
294	n = strlen (p);
295	else
296	for (n = 0; n < dwidth && p[n]; n++)
297	continue;
298
299	width -= n;
300
301	if (!ladjust && width > 0)
302	while (width--)
303	PCHAR(padc);
304	while (n--)
305	PCHAR(*p++);
306	if (ladjust && width > 0)
307	while (width--)
308	PCHAR(padc);
309	break;
310	case 't':
311	tflag = 1;
312	goto reswitch;
313	case 'u':
314	base = 10;
315	goto handle_nosign;
316	case 'X':
317	upper = 1;
318	case 'x':
319	base = 16;
320	goto handle_nosign;
321	case 'y':
322	base = 16;
323	sign = 1;
324	goto handle_sign;
325	case 'z':
326	zflag = 1;
327	goto reswitch;
328	handle_nosign:
329	sign = 0;
330	if (jflag)
331	num = va_arg(ap, uintmax_t);
332	else if (qflag)
333	num = va_arg(ap, u_quad_t);
334	else if (tflag)
335	num = va_arg(ap, ptrdiff_t);
336	else if (lflag)
337	num = va_arg(ap, u_long);
338	else if (zflag)
339	num = va_arg(ap, size_t);
340	else if (hflag)
341	num = (u_short)va_arg(ap, int);
342	else if (cflag)
343	num = (u_char)va_arg(ap, int);
344	else
345	num = va_arg(ap, u_int);
346	goto number;
347	handle_sign:
348	if (jflag)
349	num = va_arg(ap, intmax_t);
350	else if (qflag)
351	num = va_arg(ap, quad_t);
352	else if (tflag)
353	num = va_arg(ap, ptrdiff_t);
354	else if (lflag)
355	num = va_arg(ap, long);
356	else if (zflag)
357	num = va_arg(ap, ssize_t);
358	else if (hflag)
359	num = (short)va_arg(ap, int);
360	else if (cflag)
361	num = (char)va_arg(ap, int);
362	else
363	num = va_arg(ap, int);
364	number:
365	if (sign && (intmax_t)num < 0) {
366	neg = 1;
367	num = -(intmax_t)num;
368	}
369	p = ksprintn(nbuf, num, base, &tmp, upper);
370	if (sharpflag && num != 0) {
371	if (base == 8)
372	tmp++;
373	else if (base == 16)
374	tmp += 2;
375	}
376	if (neg)
377	tmp++;
378
379	if (!ladjust && padc != '0' && width
380	&& (width -= tmp) > 0)
381	while (width--)
382	PCHAR(padc);
383	if (neg)
384	PCHAR('-');
385	if (sharpflag && num != 0) {
386	if (base == 8) {
387	PCHAR('0');
388	} else if (base == 16) {
389	PCHAR('0');
390	PCHAR('x');
391	}
392	}
393	if (!ladjust && width && (width -= tmp) > 0)
394	while (width--)
395	PCHAR(padc);
396
397	while (*p)
398	PCHAR(*p--);
399
400	if (ladjust && width && (width -= tmp) > 0)
401	while (width--)
402	PCHAR(padc);
403
404	break;
405	default:
406	while (percent < fmt)
407	PCHAR(*percent++);
408	/*
409	* Since we ignore an formatting argument it is no
410	* longer safe to obey the remaining formatting
411	* arguments as the arguments will no longer match
412	* the format specs.
413	*/
414	stop = 1;
415	break;
416	}
417	}
418	PCHAR(0);
419	return retval;
420	#undef PCHAR
421	}
422
f7e3ed82	423	int vsprintf(char dest, const char fmt, va_list ap)
	424	{
	425	return kvsprintf(fmt, dest, 10, ap);
	426	}
	427
6f5cb60c	428	int
	429	sprintf(char dest, const char fmt, ...)
	430	{
	431	/* http://www.pagetable.com/?p=298 */
	432	int retval;
	433	va_list ap;
	434
	435	va_start(ap, fmt);
	436	retval = kvsprintf(fmt, dest, 10, ap);
	437	va_end(ap);
	438	return retval;
	439	}