e272f8fbca
This wasn't a problem because this error caused the program to exit, so there was no real resource leak. Coverity Scan 1430457.
134 lines
2.9 KiB
C
134 lines
2.9 KiB
C
/*
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Copyright (c) 2009-2020 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 <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifndef WIN32
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#include <time.h>
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#else
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#include <process.h>
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#include <winsock2.h>
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#define snprintf sprintf_s
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#endif
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#include <mosquitto.h>
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#include <mqtt_protocol.h>
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#include "client_shared.h"
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#include "pub_shared.h"
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/* Global variables for use in callbacks. See sub_client.c for an example of
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* using a struct to hold variables for use in callbacks. */
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int mid_sent = -1;
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struct mosq_config cfg;
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void my_log_callback(struct mosquitto *mosq, void *obj, int level, const char *str)
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{
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UNUSED(mosq);
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UNUSED(obj);
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UNUSED(level);
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printf("%s\n", str);
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}
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int load_stdin(void)
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{
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size_t pos = 0, rlen;
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char buf[1024];
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char *aux_message = NULL;
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cfg.pub_mode = MSGMODE_STDIN_FILE;
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while(!feof(stdin)){
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rlen = fread(buf, 1, 1024, stdin);
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aux_message = realloc(cfg.message, pos+rlen);
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if(!aux_message){
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err_printf(&cfg, "Error: Out of memory.\n");
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free(cfg.message);
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return 1;
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} else
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{
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cfg.message = aux_message;
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}
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memcpy(&(cfg.message[pos]), buf, rlen);
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pos += rlen;
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}
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if(pos > MQTT_MAX_PAYLOAD){
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err_printf(&cfg, "Error: Message length must be less than %u bytes.\n\n", MQTT_MAX_PAYLOAD);
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free(cfg.message);
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return 1;
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}
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cfg.msglen = (int )pos;
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if(!cfg.msglen){
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err_printf(&cfg, "Error: Zero length input.\n");
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return 1;
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}
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return 0;
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}
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int load_file(const char *filename)
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{
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size_t pos, rlen;
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FILE *fptr = NULL;
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long flen;
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fptr = fopen(filename, "rb");
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if(!fptr){
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err_printf(&cfg, "Error: Unable to open file \"%s\".\n", filename);
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return 1;
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}
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cfg.pub_mode = MSGMODE_FILE;
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fseek(fptr, 0, SEEK_END);
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flen = ftell(fptr);
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if(flen > MQTT_MAX_PAYLOAD){
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fclose(fptr);
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err_printf(&cfg, "Error: File must be less than %u bytes.\n\n", MQTT_MAX_PAYLOAD);
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free(cfg.message);
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return 1;
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}else if(flen == 0){
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fclose(fptr);
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err_printf(&cfg, "Error: File \"%s\" is empty.\n", filename);
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return 1;
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}else if(flen < 0){
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fclose(fptr);
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err_printf(&cfg, "Error: Unable to determine size of file \"%s\".\n", filename);
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return 1;
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}
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cfg.msglen = (int )flen;
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fseek(fptr, 0, SEEK_SET);
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cfg.message = malloc((size_t )cfg.msglen);
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if(!cfg.message){
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fclose(fptr);
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err_printf(&cfg, "Error: Out of memory.\n");
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return 1;
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}
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pos = 0;
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while(pos < cfg.msglen){
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rlen = fread(&(cfg.message[pos]), sizeof(char), (size_t )cfg.msglen-pos, fptr);
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pos += rlen;
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}
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fclose(fptr);
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return 0;
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}
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