75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
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/*
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* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
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* RWTH Aachen University
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of MetalSVM.
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*/
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#include <metalsvm/stdio.h>
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typedef struct {
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char *str;
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size_t pos;
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size_t max;
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} sputchar_arg_t;
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static void sputchar(int c, void *arg)
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{
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sputchar_arg_t *dest = (sputchar_arg_t *) arg;
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if (dest->pos < dest->max) {
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dest->str[dest->pos] = (char)c;
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dest->pos++;
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}
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}
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int ksnprintf(char *str, size_t size, const char *format, ...)
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{
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int ret;
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va_list ap;
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sputchar_arg_t dest;
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dest.str = str;
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dest.pos = 0;
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dest.max = size;
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va_start(ap, format);
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ret = kvprintf(format, sputchar, &dest, 10, ap);
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va_end(ap);
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str[ret] = 0;
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return ret;
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}
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int ksprintf(char *str, const char *format, ...)
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{
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int ret;
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va_list ap;
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sputchar_arg_t dest;
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dest.str = str;
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dest.pos = 0;
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dest.max = (size_t) -1;
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va_start(ap, format);
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ret = kvprintf(format, sputchar, &dest, 10, ap);
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va_end(ap);
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str[ret] = 0;
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return ret;
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}
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