6dbacee284
Add %M{essage} extension which prints an errno value as the
corresponding string if possible or numerically otherwise.
It is not currently possible to do the syslog(3) like %m extension
because errno would need to get capatured on entry to the first
function in the printf family, so %M requires you to supply errno
as an argument.
Add %Q{uote} extension which will print a string in double quotes with
appropriate back-slash escapes (only) if necessary.
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/*-
|
|
* Copyright (c) 2005 Poul-Henning Kamp
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <namespace.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <wchar.h>
|
|
#include <vis.h>
|
|
#include <assert.h>
|
|
#include <sys/time.h>
|
|
#include "printf.h"
|
|
|
|
int
|
|
__printf_arginfo_vis(const struct printf_info *pi, size_t n, int *argt)
|
|
{
|
|
|
|
assert(n >= 1);
|
|
argt[0] = PA_POINTER;
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
__printf_render_vis(struct __printf_io *io, const struct printf_info *pi, const void *const *arg)
|
|
{
|
|
char *p, *buf;
|
|
unsigned l;
|
|
int ret;
|
|
|
|
ret = 0;
|
|
p = *((char **)arg[0]);
|
|
if (p == NULL)
|
|
return (__printf_out(io, pi, "(null)", 6));
|
|
if (pi->prec >= 0)
|
|
l = pi->prec;
|
|
else
|
|
l = strlen(p);
|
|
buf = malloc(l * 4 + 1);
|
|
if (buf == NULL)
|
|
return (-1);
|
|
if (pi->showsign)
|
|
ret = strvisx(buf, p, l, VIS_WHITE | VIS_HTTPSTYLE);
|
|
else if (pi->pad == '0')
|
|
ret = strvisx(buf, p, l, VIS_WHITE | VIS_OCTAL);
|
|
else if (pi->alt)
|
|
ret = strvisx(buf, p, l, VIS_WHITE);
|
|
else
|
|
ret = strvisx(buf, p, l, VIS_WHITE | VIS_CSTYLE | VIS_OCTAL);
|
|
ret += __printf_out(io, pi, buf, ret);
|
|
__printf_flush(io);
|
|
free(buf);
|
|
return(ret);
|
|
}
|