mirror of
https://github.com/emqx/neuron.git
synced 2026-10-19 23:02:33 +08:00
eeff
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/**
|
|
* NEURON IIoT System for Industry 4.0
|
|
* Copyright (C) 2020-2022 EMQ Technologies Co., Ltd All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
**/
|
|
|
|
#if defined(__GNUC__) && !defined(_GNU_SOURCE)
|
|
#define _GNU_SOURCE
|
|
#endif
|
|
|
|
#if (defined(__unix__) || defined(unix)) && !defined(USG)
|
|
#include <sys/param.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "utils/asprintf.h"
|
|
|
|
int neu_asprintf(char **strp, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
int rv = neu_vasprintf(strp, fmt, ap);
|
|
va_end(ap);
|
|
return rv;
|
|
}
|
|
|
|
int neu_vasprintf(char **strp, const char *fmt, va_list ap)
|
|
{
|
|
#if defined(_GNU_SOURCE) || defined(BSD) || defined(__APPLE__)
|
|
return vasprintf(strp, fmt, ap);
|
|
#else
|
|
int n = 1 + vsnprintf(NULL, 0, fmt, ap);
|
|
char *s = malloc(n);
|
|
if (NULL == s) {
|
|
return -1;
|
|
}
|
|
|
|
n = vsnprintf(s, n, fmt, ap);
|
|
*strp = s;
|
|
return n;
|
|
#endif
|
|
}
|