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/*
* Copyright 2021, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* This is a reimplementation of obstack_printf for use by libcpu, which
* uses it to print an error message.
*/
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <obstack.h>
int __attribute__((__format__(printf, 2, 3))) obstack_printf(struct obstack *obs, const char *format, ...) {
va_list ap;
va_start(ap, format);
char* str = NULL;
int len = vasprintf(&str, format, ap);
if (len < 0) {
return len;
}
obstack_grow(obs, str, len);
free(str);
return len;
}
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