77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <ctype.h>
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#include <time.h>
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#include <unistd.h> //Used for UART
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#include <fcntl.h> //Used for UART
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#include <errno.h>
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#include <termios.h> //Used for UART
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#include "serial.h"
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int verbosity;
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/* ----------------------------------------------------- */
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int openserial(char *dev)
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{
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int uart;
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fprintf(stderr, "%s ( %s )\n", __func__, dev);
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uart = open(dev, O_RDONLY | O_NOCTTY);
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if (uart < 0)
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{
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perror("unable to open uart");
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exit(1);
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}
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return uart;
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}
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/* ----------------------------------------------------- */
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int configserial(int fd)
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{
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struct termios tios;
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bzero(&tios, sizeof(tios));
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tios.c_cflag = B9600 | CRTSCTS | CS8 | CLOCAL | CREAD;
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tios.c_lflag = ICANON;
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tios.c_cc[VMIN] = 1; /* read bloquant ??? */
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tcsetattr(fd,TCSANOW,&tios);
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return 0;
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}
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/* ----------------------------------------------------- */
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int main (int argc, char *argv[])
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{
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int serial_in, foo;
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unsigned char byte;
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if (2 != argc) {
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fprintf(stderr, "give me a device name, please.\n");
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return 2;
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}
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serial_in = openserial(argv[1]);
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fprintf(stderr, "openserial -> %d\n", serial_in);
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(void)configserial(serial_in);
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for (;;) {
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foo = read(serial_in, &byte, 1);
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if (1 != foo) {
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fprintf(stderr, "get byte : got %d, err is %d\n",
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foo, errno);
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}
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else {
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printf("%9ld $%02x ", time(NULL), byte);
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if (isprint(byte)) putchar(byte);
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puts("");
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if ('\n'==byte) puts("");
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}
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}
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return 0;
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}
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/* ----------------------------------------------------- */
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