/*
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Copyright (c) 2009-2019 Roger Light <roger@atchoo.org>
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All rights reserved. This program and the accompanying materials
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are made available under the terms of the Eclipse Public License v1.0
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and Eclipse Distribution License v1.0 which accompany this distribution.
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The Eclipse Public License is available at
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http://www.eclipse.org/legal/epl-v10.html
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and the Eclipse Distribution License is available at
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http://www.eclipse.org/org/documents/edl-v10.php.
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Contributors:
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Roger Light - initial implementation and documentation.
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*/
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#include "config.h"
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#include <assert.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include "mosquitto_internal.h"
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#include "mosquitto.h"
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#include "memory_mosq.h"
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int log__printf(struct mosquitto *mosq, int priority, const char *fmt, ...)
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{
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va_list va;
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char *s;
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int len;
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assert(mosq);
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assert(fmt);
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pthread_mutex_lock(&mosq->log_callback_mutex);
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if(mosq->on_log){
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len = strlen(fmt) + 500;
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s = mosquitto__malloc(len*sizeof(char));
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if(!s){
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pthread_mutex_unlock(&mosq->log_callback_mutex);
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return MOSQ_ERR_NOMEM;
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}
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va_start(va, fmt);
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vsnprintf(s, len, fmt, va);
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va_end(va);
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s[len-1] = '\0'; /* Ensure string is null terminated. */
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mosq->on_log(mosq, mosq->userdata, priority, s);
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mosquitto__free(s);
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}
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pthread_mutex_unlock(&mosq->log_callback_mutex);
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return MOSQ_ERR_SUCCESS;
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}
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