xprintf_vis.c revision 153486 
1/*-
2 * Copyright (c) 2005 Poul-Henning Kamp
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/lib/libc/stdio/xprintf_vis.c 153486 2005-12-16 18:56:39Z phk $
27 */
28
29#include <namespace.h>
30#include <stdio.h>
31#include <string.h>
32#include <stdlib.h>
33#include <wchar.h>
34#include <vis.h>
35#include <assert.h>
36#include <sys/time.h>
37#include "printf.h"
38
39int
40__printf_arginfo_vis(const struct printf_info *pi, size_t n, int *argt)
41{
42
43	assert(n >= 1);
44	argt[0] = PA_POINTER;
45	return (1);
46}
47
48int
49__printf_render_vis(struct __printf_io *io, const struct printf_info *pi, const void *const *arg)
50{
51	char *p, *buf;
52	unsigned l;
53	int ret;
54
55	ret = 0;
56	p = *((char **)arg[0]);
57	if (pi->prec >= 0)
58		l = pi->prec;
59	else
60		l = strlen(p);
61	buf = malloc(l * 4 + 1);
62	if (buf == NULL)
63		return (-1);
64	if (pi->showsign)
65		ret = strvisx(buf, p, l, VIS_WHITE | VIS_HTTPSTYLE);
66	else if (pi->pad == '0')
67		ret = strvisx(buf, p, l, VIS_WHITE | VIS_OCTAL);
68	else if (pi->alt)
69		ret = strvisx(buf, p, l, VIS_WHITE);
70	else
71		ret = strvisx(buf, p, l, VIS_WHITE | VIS_CSTYLE | VIS_OCTAL);
72	ret += __printf_out(io, pi, buf, ret);
73	__printf_flush(io);
74	free(buf);
75	return(ret);
76}
77