www.pudn.com > 422.rar > rxtx.c

#include 
#include 
#include 
#include 
#include 

#include "../include/serial.h"
#define MAXL 40

int main(void)
{
	int i=0, fd=0, ret=0, count=0;
	char loop=0;
	char ch, transmission[MAXL+1], specialfile[MAXL+1]="/dev/can0", emptystring[MAXL+1]="", buf[MAXL+1];
	char remote[MAXL+1];
	struct serialmsg_t message;

	printf("\nThis program allows you to send or receive Can messages.\n");
	printf("Please answer the following questions:\n\n");

	while ( (*transmission!='s') && (*transmission!='r') ) {
		printf("Would you like to send or receive a message?\n");
		printf("send:  | receive:  ");
		strcpy(transmission,emptystring);
		count=0;
		while ( (ch=getchar()) != '\n' )
			transmission[count++]=ch;
		transmission[count]='\0';
	}

	while ( *remote!='y' && *remote!='n' ) {
		printf("Should the message be configured for Remote Transmission Requests?\n");
		printf("yes:  | no:  ");
		strcpy(remote,emptystring);
		count=0;
		while ( (ch=getchar()) != '\n' )
			remote[count++]=ch;
		remote[count]='\0';
	}
//	if (remote[0]=='y')
//		message.flags |= MSG_RTR;
//	else
//		message.flags = 0;
//	message.flags |= MSG_EXT;  hard code EXT for now

	if (transmission[0]=='s') {
			printf("From wich device file would you like to send the message?\n");
			printf(specialfile);
			*buf='\0';
			fgets(buf,MAXL,stdin);
			buf[strcspn(buf,"\n")]='\0';
			if(*buf)
				strncpy(specialfile,buf,MAXL);
			specialfile[MAXL]='\0';
			specialfile[MAXL]='\0';
		printf("Enter the Message ID ");
//		scanf("%lx",&message.id);
		printf("Enter the Message Length ");
		scanf("%d",&message.length);
printf("input  length=============%d\n",message.length);
		for (i=0; ioop\n");
		loop = 'l';
		while ( loop == 'l') {
			loop = getchar(); 
			ret=read(fd, &message, sizeof(struct serialmsg_t));
			if (ret<0)
				printf("Error receiving message on %s\n",
								specialfile);
			else {
//				printf("Id	: %lx\n",message.id);
				printf("length	: %d\n",message.length);
//				printf("flags	: 0x%02x\n", message.flags);
//				printf("time	: %ld\n", message.timestamp);
				for (i=0; i