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/* -------------------------------------------------------------
RabbitMQ TCL - Net helper functions
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/_/ |_| \__,_/ /_.___//_.___//_/ \__/ /_/ /_/ \___\_\
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RabbitMQ C AMQP client library TCL wrapper ___ __/_ ____/__ /
TCL module to connect to AMQP brokers. __ / _ / __ /
_ / / /___ _ /___
(c) 2015, Nasqueron, some rights reserved. /_/ \____/ /_____/
Released under BSD-2-Clause license.
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Software: RabbitMQ TCL
Author: Sébastien Santoro aka Dereckson
Filename: netutils.c
Created: 2015-12-08
Licence: BSD-2-Clause
------------------------------------------------------------- */
#include <stdlib.h>
#include <string.h>
#include "strutils.h"
/* -------------------------------------------------------------
Parser for host:port expressions
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/**
* Gets host from a host:port expression
*
* @param[in] expression the host:port expression
* @return the hostname
*/
char *get_host(const char *expression, const char *defaultHost) {
char *host = malloc(1024 * sizeof(char));
int pos;
// If the expression is empty, the default host is privileged
if (expression[0] == '\0') {
strcpy(host, defaultHost);
return host;
}
// Gets the host part of an host:port expression
pos = strpos(expression, ":");
if (pos == STR_NOT_FOUND) {
strcpy(host, expression);
} else if (pos == 0) {
strcpy(host, defaultHost); // Handle ":5000" case
} else {
strncpy(host, expression, pos);
host[pos] = '\0';
}
return host;
}
/**
* Gets port from a host:port expression
*
* @param[in] expression the host:port expression
* @param[in] defaultPort the default port if omitted
* @return the hostname
*/
int get_port(const char *expression, int defaultPort) {
int port;
int pos;
pos = strpos(expression, ":");
if (pos == STR_NOT_FOUND) {
return defaultPort;
}
expression += pos + 1;
port = atoi(expression);
if (port <= 0 || port > 65535) {
// mq connect server: should use default port instead of 0
// We ignore gracefully any other error
return defaultPort;
}
return port;
}

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