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int opendev(char *dev,mode_t mode)
{
int fd;
fd = open(dev, mode);
if (-1 == fd){
perror("Can't Open Serial Port");
return -1;
}
else{
fcntl(fd, F_SETFL, FNDELAY);
return fd;
}
}
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#define FALSE -1
#define TRUE 0
#define NET_PORT 19988
#define MAX_BUF_SIZE 4096
struct net2net_buf{
int len;
char buf[MAX_BUF_SIZE];
};
#define RSDEV_NAME "/dev/ttyS1"
int main(void)
{
int rsfd = 0;
int nwrite;
char input_buf[64];
rsfd = opendev(RSDEV_NAME,O_RDWR | O_NOCTTY |
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