[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
 */

typedef unsigned long size_t;
typedef long ssize_t;
#ifdef __64BIT__
typedef unsigned long long uintmax_t;
typedef long long intmax_t;
#else
typedef unsigned int uintmax_t;
typedef int intmax_t;
#endif
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 unsigned long uintptr_t;
typedef long ptrdiff_t;
#define NULL ((void*)0)
#define NBBY    8               /* number of bits in a byte */
char const hex2ascii_data[] = "0123456789abcdefghijklmnopqrstuvwxyz";
#define hex2ascii(hex)  (hex2ascii_data[hex])
#define va_list __builtin_va_list
#define va_start __builtin_va_start
#define va_arg __builtin_va_arg
#define va_end __builtin_va_end
#define toupper(c)      ((c) - 0x20 * (((c) >= 'a') && ((c) <= 'z')))
static size_t
strlen(const char *s)
{
	size_t l = 0;
	while (*s++)
		l++;
	return l;
}

/* 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
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
	37	typedef unsigned long size_t;
	38	typedef long ssize_t;
	39	#ifdef __64BIT__
	40	typedef unsigned long long uintmax_t;
	41	typedef long long intmax_t;
	42	#else
	43	typedef unsigned int uintmax_t;
	44	typedef int intmax_t;
	45	#endif
	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;
	52	typedef unsigned long uintptr_t;
	53	typedef long ptrdiff_t;
	54	#define NULL ((void*)0)
	55	#define NBBY 8 /* number of bits in a byte */
	56	char const hex2ascii_data[] = "0123456789abcdefghijklmnopqrstuvwxyz";
	57	#define hex2ascii(hex) (hex2ascii_data[hex])
	58	#define va_list __builtin_va_list
	59	#define va_start __builtin_va_start
	60	#define va_arg __builtin_va_arg
	61	#define va_end __builtin_va_end
	62	#define toupper(c) ((c) - 0x20 * (((c) >= 'a') && ((c) <= 'z')))
	63	static size_t
	64	strlen(const char *s)
65	{
66	size_t l = 0;
67	while (*s++)
68	l++;
69	return l;
70	}
71
72	/* Max number conversion buffer length: a u_quad_t in base 2, plus NUL byte. */
73	#define MAXNBUF (sizeof(intmax_t) * NBBY + 1)
74
75	/*
76	* Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse
77	* order; return an optional length and a pointer to the last character
78	* written in the buffer (i.e., the first character of the string).
79	* The buffer pointed to by `nbuf' must have length >= MAXNBUF.
80	*/
81	static char *
82	ksprintn(char nbuf, uintmax_t num, int base, int lenp, int upper)
83	{
84	char *p, c;
85
86	p = nbuf;
87	*p = '\0';
88	do {
89	c = hex2ascii(num % base);
90	*++p = upper ? toupper(c) : c;
91	} while (num /= base);
92	if (lenp)
93	*lenp = p - nbuf;
94	return (p);
95	}
96
97	/*
98	* Scaled down version of printf(3).
99	*
100	* Two additional formats:
101	*
102	* The format %b is supported to decode error registers.
103	* Its usage is:
104	*
105	* printf("reg=%b\n", regval, "*");
106	*
107	* where is the output base expressed as a control character, e.g.
108	* \10 gives octal; \20 gives hex. Each arg is a sequence of characters,
109	* the first of which gives the bit number to be inspected (origin 1), and
110	* the next characters (up to a control character, i.e. a character <= 32),
111	* give the name of the register. Thus:
112	*
113	* kvprintf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n");
114	*
115	* would produce output:
116	*
117	* reg=3
118	*
119	* XXX: %D -- Hexdump, takes pointer and separator string:
120	* ("%6D", ptr, ":") -> XX:XX:XX:XX:XX:XX
121	* ("%*D", len, ptr, " " -> XX XX XX XX ...
122	*/
123	int
124	kvsprintf(char const fmt, void arg, int radix, va_list ap)
125	{
126	#define PCHAR(c) {int cc=(c); *d++ = cc; retval++; }
127	char nbuf[MAXNBUF];
128	char *d;
129	const char p, percent, *q;
130	u_char *up;
131	int ch, n;
132	uintmax_t num;
133	int base, lflag, qflag, tmp, width, ladjust, sharpflag, neg, sign, dot;
134	int cflag, hflag, jflag, tflag, zflag;
135	int dwidth, upper;
136	char padc;
137	int stop = 0, retval = 0;
138
139	num = 0;
140	d = (char *) arg;
141
142	if (fmt == NULL)
143	fmt = "(fmt null)\n";
144
145	if (radix < 2 \|\| radix > 36)
146	radix = 10;
147
148	for (;;) {
149	padc = ' ';
150	width = 0;
151	while ((ch = (u_char)*fmt++) != '%' \|\| stop) {
152	PCHAR(ch);
153	if (ch == '\0')
154	return (retval);
155	}
156	percent = fmt - 1;
157	qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0;
158	sign = 0; dot = 0; dwidth = 0; upper = 0;
159	cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0;
160	reswitch: switch (ch = (u_char)*fmt++) {
161	case '.':
162	dot = 1;
163	goto reswitch;
164	case '#':
165	sharpflag = 1;
166	goto reswitch;
167	case '+':
168	sign = 1;
169	goto reswitch;
170	case '-':
171	ladjust = 1;
172	goto reswitch;
173	case '%':
174	PCHAR(ch);
175	break;
176	case '*':
177	if (!dot) {
178	width = va_arg(ap, int);
179	if (width < 0) {
180	ladjust = !ladjust;
181	width = -width;
182	}
183	} else {
184	dwidth = va_arg(ap, int);
185	}
186	goto reswitch;
187	case '0':
188	if (!dot) {
189	padc = '0';
190	goto reswitch;
191	}
192	case '1': case '2': case '3': case '4':
193	case '5': case '6': case '7': case '8': case '9':
194	for (n = 0;; ++fmt) {
195	n = n * 10 + ch - '0';
196	ch = *fmt;
197	if (ch < '0' \|\| ch > '9')
198	break;
199	}
200	if (dot)
201	dwidth = n;
202	else
203	width = n;
204	goto reswitch;
205	case 'b':
206	num = (u_int)va_arg(ap, int);
207	p = va_arg(ap, char *);
208	for (q = ksprintn(nbuf, num, p++, NULL, 0); q;)
209	PCHAR(*q--);
210
211	if (num == 0)
212	break;
213
214	for (tmp = 0; *p;) {
215	n = *p++;
216	if (num & (1 << (n - 1))) {
217	PCHAR(tmp ? ',' : '<');
218	for (; (n = *p) > ' '; ++p)
219	PCHAR(n);
220	tmp = 1;
221	} else
222	for (; *p > ' '; ++p)
223	continue;
224	}
225	if (tmp)
226	PCHAR('>');
227	break;
228	case 'c':
229	PCHAR(va_arg(ap, int));
230	break;
231	case 'D':
232	up = va_arg(ap, u_char *);
233	p = va_arg(ap, char *);
234	if (!width)
235	width = 16;
236	while(width--) {
237	PCHAR(hex2ascii(*up >> 4));
238	PCHAR(hex2ascii(*up & 0x0f));
239	up++;
240	if (width)
241	for (q=p;*q;q++)
242	PCHAR(*q);
243	}
244	break;
245	case 'd':
246	case 'i':
247	base = 10;
248	sign = 1;
249	goto handle_sign;
250	case 'h':
251	if (hflag) {
252	hflag = 0;
253	cflag = 1;
254	} else
255	hflag = 1;
256	goto reswitch;
257	case 'j':
258	jflag = 1;
259	goto reswitch;
260	case 'l':
261	if (lflag) {
262	lflag = 0;
263	qflag = 1;
264	} else
265	lflag = 1;
266	goto reswitch;
267	case 'n':
268	if (jflag)
269	(va_arg(ap, intmax_t )) = retval;
270	else if (qflag)
271	(va_arg(ap, quad_t )) = retval;
272	else if (lflag)
273	(va_arg(ap, long )) = retval;
274	else if (zflag)
275	(va_arg(ap, size_t )) = retval;
276	else if (hflag)
277	(va_arg(ap, short )) = retval;
278	else if (cflag)
279	(va_arg(ap, char )) = retval;
280	else
281	(va_arg(ap, int )) = retval;
282	break;
283	case 'o':
284	base = 8;
285	goto handle_nosign;
286	case 'p':
287	base = 16;
288	sharpflag = (width == 0);
289	sign = 0;
290	num = (uintptr_t)va_arg(ap, void *);
291	goto number;
292	case 'q':
293	qflag = 1;
294	goto reswitch;
295	case 'r':
296	base = radix;
297	if (sign)
298	goto handle_sign;
299	goto handle_nosign;
300	case 's':
301	p = va_arg(ap, char *);
302	if (p == NULL)
303	p = "(null)";
304	if (!dot)
305	n = strlen (p);
306	else
307	for (n = 0; n < dwidth && p[n]; n++)
308	continue;
309
310	width -= n;
311
312	if (!ladjust && width > 0)
313	while (width--)
314	PCHAR(padc);
315	while (n--)
316	PCHAR(*p++);
317	if (ladjust && width > 0)
318	while (width--)
319	PCHAR(padc);
320	break;
321	case 't':
322	tflag = 1;
323	goto reswitch;
324	case 'u':
325	base = 10;
326	goto handle_nosign;
327	case 'X':
328	upper = 1;
329	case 'x':
330	base = 16;
331	goto handle_nosign;
332	case 'y':
333	base = 16;
334	sign = 1;
335	goto handle_sign;
336	case 'z':
337	zflag = 1;
338	goto reswitch;
339	handle_nosign:
340	sign = 0;
341	if (jflag)
342	num = va_arg(ap, uintmax_t);
343	else if (qflag)
344	num = va_arg(ap, u_quad_t);
345	else if (tflag)
346	num = va_arg(ap, ptrdiff_t);
347	else if (lflag)
348	num = va_arg(ap, u_long);
349	else if (zflag)
350	num = va_arg(ap, size_t);
351	else if (hflag)
352	num = (u_short)va_arg(ap, int);
353	else if (cflag)
354	num = (u_char)va_arg(ap, int);
355	else
356	num = va_arg(ap, u_int);
357	goto number;
358	handle_sign:
359	if (jflag)
360	num = va_arg(ap, intmax_t);
361	else if (qflag)
362	num = va_arg(ap, quad_t);
363	else if (tflag)
364	num = va_arg(ap, ptrdiff_t);
365	else if (lflag)
366	num = va_arg(ap, long);
367	else if (zflag)
368	num = va_arg(ap, ssize_t);
369	else if (hflag)
370	num = (short)va_arg(ap, int);
371	else if (cflag)
372	num = (char)va_arg(ap, int);
373	else
374	num = va_arg(ap, int);
375	number:
376	if (sign && (intmax_t)num < 0) {
377	neg = 1;
378	num = -(intmax_t)num;
379	}
380	p = ksprintn(nbuf, num, base, &tmp, upper);
381	if (sharpflag && num != 0) {
382	if (base == 8)
383	tmp++;
384	else if (base == 16)
385	tmp += 2;
386	}
387	if (neg)
388	tmp++;
389
390	if (!ladjust && padc != '0' && width
391	&& (width -= tmp) > 0)
392	while (width--)
393	PCHAR(padc);
394	if (neg)
395	PCHAR('-');
396	if (sharpflag && num != 0) {
397	if (base == 8) {
398	PCHAR('0');
399	} else if (base == 16) {
400	PCHAR('0');
401	PCHAR('x');
402	}
403	}
404	if (!ladjust && width && (width -= tmp) > 0)
405	while (width--)
406	PCHAR(padc);
407
408	while (*p)
409	PCHAR(*p--);
410
411	if (ladjust && width && (width -= tmp) > 0)
412	while (width--)
413	PCHAR(padc);
414
415	break;
416	default:
417	while (percent < fmt)
418	PCHAR(*percent++);
419	/*
420	* Since we ignore an formatting argument it is no
421	* longer safe to obey the remaining formatting
422	* arguments as the arguments will no longer match
423	* the format specs.
424	*/
425	stop = 1;
426	break;
427	}
428	}
429	PCHAR(0);
430	return retval;
431	#undef PCHAR
432	}
433
434	int
435	sprintf(char dest, const char fmt, ...)
436	{
437	/* http://www.pagetable.com/?p=298 */
438	int retval;
439	va_list ap;
440
441	va_start(ap, fmt);
442	retval = kvsprintf(fmt, dest, 10, ap);
443	va_end(ap);
444	return retval;
445	}