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/*
sendtoxlog - example for sending data to xlog from a second application
Copyright (C) 2001-2005 Joop Stakenborg <pg4i@amsat.org>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Xlog is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with xlog. If not, see <http://www.gnu.org/licenses/>.
*/
/*
*
* Compile with 'gcc -o sendtoxlog sendtoxlog.c'
* See the provided README for more details.
*
*/
/* definition of some strings to send over */
#define DEMO1 "program:sendtoxlog\1version:1\1date:29 Jul 2001\1time:2214\1call:wa0eir"
#define DEMO2 "program:sendtoxlog\1version:1\1date:30 Dec 2001\1time:2214\1endtime:2220\
\1call:pg4i\1mhz:14\1mode:cw\1tx:579\1rx:569\1name:joop\1qth:houten\1notes:this\nis DEMO2\
\1power:100W\1locator:JO22OB\1free1:testfree1\1free2:testfree2"
#define DEMO3 "program:sendtoxlog\1version:1\1call:f8cfe"
#define DEMO4 "program:sendtoxlog\1version:1\1date:26 Aug 2003\1time:2214\1endtime:2220\
\1call:pg4i\1mhz:HAMLIB\1mode:HAMLIB\1tx:HAMLIB\1rx:569\1name:joop\1qth:houten\1notes:this is DEMO4\
\1power:HAMLIB\1locator:JO22OB\1free1:testfree1\1free2:testfree2"
#define DEMO5 "program:sendtoxlog\1version:1\1call:pg4i\1notes:áóèúéà"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
extern int errno;
/* structure needed for the message queue */
typedef struct
{
long mtype; /* mtype should always be 88 */
char mtext[1024]; /* mtext holds the message */
}
msgtype;
msgtype msgbuf;
int msgid;
/* this is the function which does the actual sending over the message queue */
static void
sendtoxlog (char *message)
{
strcpy (msgbuf.mtext, message);
if (msgsnd (msgid, (void *) &msgbuf, 1024, 0) == -1)
fprintf (stderr, "msgsnd failed: %s\n", strerror (errno));
else
fprintf (stdout, "message sent OK\n");
}
int
main (int argc, char *argv[])
{
/* first some command line parsing */
if (argc == 1 || argc > 2)
{
fprintf (stdout, "Sendtoxlog, program which demonstrates how to send remote data to xlog.\n");
fprintf (stdout, " Usage: sendtoxlog [number], where number can be 1, 2, 3, 4 or 5 ...\n");
fprintf (stdout, " sendtoxlog 1, demonstrates date time and callsign\n");
fprintf (stdout, " sendtoxlog 2, demonstrates all entries\n");
fprintf (stdout, " sendtoxlog 3, demonstrates only the callsign field\n");
fprintf (stdout, " sendtoxlog 4, demonstrates hamlib capabilities\n");
fprintf (stdout, " sendtoxlog 5, test language characters\n");
exit (0);
}
if (strcmp (argv[1], "1") != 0 && strcmp (argv[1], "2") != 0
&& strcmp (argv[1], "3") != 0 && strcmp (argv[1], "4") != 0
&& strcmp (argv[1], "5") != 0)
{
fprintf (stdout, "Argument for sendtoxlog is '1', '2', '3', '4' or '5',");
fprintf (stdout, " type sendtoxlog for help.\n");
exit (1);
}
/* create the message queue, you need to use 1238 for the key to talk to xlog */
msgid = msgget ((key_t) 1238, 0666 | IPC_CREAT);
if (msgid == -1)
{
fprintf (stderr, "msgget failed: %s\n", strerror (errno));
exit (1);
}
/* you need to set mtype to 88 */
msgbuf.mtype = 88;
/* here we go */
/* demo 1 */
if (strcmp (argv[1], "1") == 0)
sendtoxlog (DEMO1);
/* demo 2 */
if (strcmp (argv[1], "2") == 0)
sendtoxlog (DEMO2);
/* demo 3 */
if (strcmp (argv[1], "3") == 0)
sendtoxlog (DEMO3);
/* demo 4 */
if (strcmp (argv[1], "4") == 0)
sendtoxlog (DEMO4);
/* demo 5 */
if (strcmp (argv[1], "5") == 0)
sendtoxlog (DEMO5);
/*
* WARNING: do not remove the message queue with
* "msgctl(msgid, IPC_RMID, 0)", xlog will take care of it
*/
exit (0);
}
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