82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
/*
|
|
* Copyright (c) 2010, Stefan Lankes, RWTH Aachen University
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * 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.
|
|
* * 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 COPYRIGHT HOLDERS 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.
|
|
*/
|
|
|
|
#include <eduos/stdio.h>
|
|
|
|
typedef struct {
|
|
char *str;
|
|
size_t pos;
|
|
size_t max;
|
|
} sputchar_arg_t;
|
|
|
|
static void sputchar(int c, void *arg)
|
|
{
|
|
sputchar_arg_t *dest = (sputchar_arg_t *) arg;
|
|
|
|
if (dest->pos < dest->max) {
|
|
dest->str[dest->pos] = (char)c;
|
|
dest->pos++;
|
|
}
|
|
}
|
|
|
|
int ksnprintf(char *str, size_t size, const char *format, ...)
|
|
{
|
|
int ret;
|
|
va_list ap;
|
|
sputchar_arg_t dest;
|
|
|
|
dest.str = str;
|
|
dest.pos = 0;
|
|
dest.max = size;
|
|
|
|
va_start(ap, format);
|
|
ret = kvprintf(format, sputchar, &dest, 10, ap);
|
|
va_end(ap);
|
|
|
|
str[ret] = 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int ksprintf(char *str, const char *format, ...)
|
|
{
|
|
int ret;
|
|
va_list ap;
|
|
sputchar_arg_t dest;
|
|
|
|
dest.str = str;
|
|
dest.pos = 0;
|
|
dest.max = (size_t) -1;
|
|
|
|
va_start(ap, format);
|
|
ret = kvprintf(format, sputchar, &dest, 10, ap);
|
|
va_end(ap);
|
|
|
|
str[ret] = 0;
|
|
|
|
return ret;
|
|
}
|