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// Copyright 2007 - 2021, Alan Antonuk and the rabbitmq-c contributors.
// SPDX-License-Identifier: mit
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rabbitmq-c/amqp.h>
#include <rabbitmq-c/tcp_socket.h>
#include <assert.h>
#include "utils.h"
int main(int argc, char const *const *argv) {
char const *hostname;
int port, status;
char const *exchange;
char const *bindingkey;
amqp_socket_t *socket = NULL;
amqp_connection_state_t conn;
amqp_bytes_t queuename;
if (argc < 5) {
fprintf(stderr, "Usage: amqp_listen host port exchange bindingkey\n");
return 1;
}
hostname = argv[1];
port = atoi(argv[2]);
exchange = argv[3];
bindingkey = argv[4];
conn = amqp_new_connection();
socket = amqp_tcp_socket_new(conn);
if (!socket) {
die("creating TCP socket");
}
status = amqp_socket_open(socket, hostname, port);
if (status) {
die("opening TCP socket");
}
die_on_amqp_error(amqp_login(conn, "/", 0, 131072, 0, AMQP_SASL_METHOD_PLAIN,
"guest", "guest"),
"Logging in");
amqp_channel_open(conn, 1);
die_on_amqp_error(amqp_get_rpc_reply(conn), "Opening channel");
{
amqp_queue_declare_ok_t *r = amqp_queue_declare(
conn, 1, amqp_empty_bytes, 0, 0, 0, 1, amqp_empty_table);
die_on_amqp_error(amqp_get_rpc_reply(conn), "Declaring queue");
queuename = amqp_bytes_malloc_dup(r->queue);
if (queuename.bytes == NULL) {
fprintf(stderr, "Out of memory while copying queue name");
return 1;
}
}
amqp_queue_bind(conn, 1, queuename, amqp_cstring_bytes(exchange),
amqp_cstring_bytes(bindingkey), amqp_empty_table);
die_on_amqp_error(amqp_get_rpc_reply(conn), "Binding queue");
amqp_basic_consume(conn, 1, queuename, amqp_empty_bytes, 0, 1, 0,
amqp_empty_table);
die_on_amqp_error(amqp_get_rpc_reply(conn), "Consuming");
{
for (;;) {
amqp_rpc_reply_t res;
amqp_envelope_t envelope;
amqp_maybe_release_buffers(conn);
res = amqp_consume_message(conn, &envelope, NULL, 0);
if (AMQP_RESPONSE_NORMAL != res.reply_type) {
break;
}
printf("Delivery %u, exchange %.*s routingkey %.*s\n",
(unsigned)envelope.delivery_tag, (int)envelope.exchange.len,
(char *)envelope.exchange.bytes, (int)envelope.routing_key.len,
(char *)envelope.routing_key.bytes);
if (envelope.message.properties._flags & AMQP_BASIC_CONTENT_TYPE_FLAG) {
printf("Content-type: %.*s\n",
(int)envelope.message.properties.content_type.len,
(char *)envelope.message.properties.content_type.bytes);
}
printf("----\n");
amqp_dump(envelope.message.body.bytes, envelope.message.body.len);
amqp_destroy_envelope(&envelope);
}
}
amqp_bytes_free(queuename);
die_on_amqp_error(amqp_channel_close(conn, 1, AMQP_REPLY_SUCCESS),
"Closing channel");
die_on_amqp_error(amqp_connection_close(conn, AMQP_REPLY_SUCCESS),
"Closing connection");
die_on_error(amqp_destroy_connection(conn), "Ending connection");
return 0;
}
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