messages.c File Reference

Message processing functions common to swoc programs. More...

#include <errno.h>
#include <ifaddrs.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <syslog.h>
#include <libswoccommon.h>
#include <mge-errno.h>
#include <mgebuffer.h>
#include <mgemessage.h>

Include dependency graph for messages.c:

Functions
static int	get_reply_msg (int sockfd, struct mgemessage *recv_msg)
static int	host_id (int sockfd, char *orig_outgoing_msg)
void	parse_msg (struct mgemessage *msg, enum msg_arguments *msg_args, enum msg_source *msg_src, enum msg_request *msg_req)
	Parse a message. More...
int	send_outgoing_msg (char *outgoing_msg, size_t outgoing_msg_length, int *newsockfd)
	Send a message. More...
int	exch_msg (char *outgoing_msg, size_t om_length, struct mgemessage *msg)
	Exchange messages. More...

Detailed Description

Message processing functions common to swoc programs.

Author

Copyright (C) 2017-2021 Mark Grant

Released under the GPLv3 only.
SPDX-License-Identifier: GPL-3.0-only

Version

v1.1.14 ==== 08/12/2021

Function Documentation

exch_msg()

int exch_msg	(	char *	outgoing_msg,
		size_t	om_length,
		struct mgemessage *	msg
	)

Exchange messages.

Send and receive 1 requested message after sending ID message. On error mge_errno will be set.

Parameters

outgoing_msg	The message to send.
om_length	The length of the outgoing message.
msg	The received message.

Returns

0 on success, -1 on error.

get_reply_msg()

static int get_reply_msg ( int  sockfd, struct mgemessage *  recv_msg  )

static

host_id()

static int host_id ( int  sockfd, char *  orig_outgoing_msg  )

static

parse_msg()

void parse_msg	(	struct mgemessage *	msg,
		enum msg_arguments *	msg_args,
		enum msg_source *	msg_src,
		enum msg_request *	msg_req
	)

Parse a message.

Identify message source and request.

Parameters

msg	The message to process.
msg_args	The arguments to the message.
msg_src	The source of the message.
msg_req	The request contained in the message.

send_outgoing_msg()

int send_outgoing_msg	(	char *	outgoing_msg,
		size_t	outgoing_msg_length,
		int *	newsockfd
	)

Send a message.

On error mge_errno will be set.

Parameters

outgoing_msg	The message to send.
outgoing_msg_length	The length of the message.
newsockfd	The socket file descriptor.

Returns

0 on success, non-zero on error.