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/* compatibility file for systems without asprintf.
*
* Copyright 2019 P Duveau
*
* This file is part of rsyslog.
*
* 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
* -or-
* see COPYING.ASL20 in the source distribution
*
* 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.
*/
#include "config.h"
#ifndef HAVE_ASPRINTF
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
int asprintf(char **strp, const char *fmt, ...) {
va_list ap;
int len;
va_start(ap, fmt);
len = vsnprintf(NULL, 0, fmt, ap);
va_end(ap);
*strp = malloc(len + 1);
if (!*strp) {
return -1;
}
va_start(ap, fmt);
vsnprintf(*strp, len + 1, fmt, ap);
va_end(ap);
(*strp)[len] = 0;
return len;
}
#else
/* XLC needs at least one method in source file even static to compile */
#ifdef __xlc__
static void dummy(void) {}
#endif
#endif /* #ifndef HAVE_ASPRINTF */
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