xprintf_vis.c revision 272461
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: releng/10.1/lib/libc/stdio/xprintf_vis.c 154815 2006-01-25 12:45:24Z 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 (p == NULL) 58 return (__printf_out(io, pi, "(null)", 6)); 59 if (pi->prec >= 0) 60 l = pi->prec; 61 else 62 l = strlen(p); 63 buf = malloc(l * 4 + 1); 64 if (buf == NULL) 65 return (-1); 66 if (pi->showsign) 67 ret = strvisx(buf, p, l, VIS_WHITE | VIS_HTTPSTYLE); 68 else if (pi->pad == '0') 69 ret = strvisx(buf, p, l, VIS_WHITE | VIS_OCTAL); 70 else if (pi->alt) 71 ret = strvisx(buf, p, l, VIS_WHITE); 72 else 73 ret = strvisx(buf, p, l, VIS_WHITE | VIS_CSTYLE | VIS_OCTAL); 74 ret += __printf_out(io, pi, buf, ret); 75 __printf_flush(io); 76 free(buf); 77 return(ret); 78} 79