displaytest.c File Reference

#include "config.h"
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <arpa/inet.h>
#include "delta.h"
#include "log.h"

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Defines
#define	DMPORT   50555
#define	DMSERVER   "127.0.0.1"
#define	MESSAGEFULL   "0,0,0,768,1024,0,1,1,displaytest"
Functions
void	displayHelp (void)
int	main (int argc, char **argv)

---

Define Documentation

#define DMPORT   50555

Copyright (C) 2008 iRex Technologies B.V. All rights reserved.

Definition at line 55 of file displaytest.c.

#define DMSERVER   "127.0.0.1"

Definition at line 56 of file displaytest.c.

#define MESSAGEFULL   "0,0,0,768,1024,0,1,1,displaytest"

Definition at line 57 of file displaytest.c.

Referenced by main().

---

Function Documentation

void displayHelp

(

void

)

Definition at line 76 of file displaytest.c.

Referenced by main().

{
    printf("Usage: displaytest -<option> <argument>\n");
    printf("  no arguments : send full display update message to local host\n");
    printf("  -m <formatted display string>  : message to send (x,y,width,height,is_window,window_type,widget_type)\n");
    printf("  -d <dotted decimal ip address> : destination IP address\n");
    printf("  -h : display this message\n");
}

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int main	(	int	argc,
		char **	argv
	)

Definition at line 85 of file displaytest.c.

References displayHelp(), DMPORT, DMSERVER, ERRORPRINTF, fd, LOGPRINTF, MESSAGEFULL, and msg.

{
    char    destination[INET_ADDRSTRLEN] = DMSERVER;
    char    message[256]                 = MESSAGEFULL;
    char    msg[256]                     = {0};
    struct  sockaddr_in server_addr      = {0};
    int     nArg = 1;
    int     fd   = 0;

    // work our way through all possible options
    while (nArg < argc)
    {
        if (argv[nArg][0] == '-')
        {
            switch (argv[nArg][1])
            {
            case 'h':
                displayHelp();
                return 0;
                break;

            case 'd':
                // What address ?
                if (++nArg >= argc)
                {
                    // not enough arguments supplied
                    ERRORPRINTF("Supply a dotted decimal IP address after option -d");
                    displayHelp();
                    return -1;
                }
                else
                {
                    strncpy(destination, argv[nArg], INET_ADDRSTRLEN);
                    nArg++;
                }
                break;

            case 'm':
                if (++nArg >= argc)
                {
                    // not enough arguments supplied
                    ERRORPRINTF("Supply a message string after option -m");
                    displayHelp();
                    return -1;
                }
                else
                {
                    strncpy(message, argv[nArg], sizeof(message));
                    nArg++;
                }
                break;

            default:
                ERRORPRINTF("Option %s not known", argv[nArg]);
                displayHelp();
                return -1;
            }
        }
        else
        {
            ERRORPRINTF("Argument supplied not proceded by option");
            displayHelp();
            return -1;
        }
    }

    // create and bind socket
    fd = socket(PF_INET, SOCK_DGRAM, 0);
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons(DMPORT);
    server_addr.sin_addr.s_addr = inet_addr(destination);
    memset(server_addr.sin_zero, '\0', sizeof(server_addr.sin_zero));
    
    // send display update message
    snprintf(msg, sizeof(msg)-1, "!I,%s", message);
    sendto(fd, msg, strlen(msg), 0, (struct sockaddr*) &server_addr, sizeof(server_addr));

    LOGPRINTF("Sent message: %s to %s", msg, destination);
    
    close(fd);
    
    return 0;
}

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