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/*
* Stuff the contents of a specified file into a specified tty.
*
* This file is Copyright (c) 2010-2018 by the GPSD project
* SPDX-License-Identifier: BSD-2-clause
*/
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <termios.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <time.h> /* For nanosleep() */
#ifndef __GLIBC__
#include <util.h>
#else
#include <pty.h>
#endif
#define WRLEN 64
void spinner(int);
void usage(void);
int main( int argc, char **argv){
struct stat sb;
struct termios term;
char *buf, tn[32];
int ifd, ofd, sfd;
int dflag = 0, c, sleeptime, len, speed = 0;
struct timespec delay;
while((c = getopt(argc, argv, "d:r:s:")) != -1) {
switch(c){
case 'd':
dflag = 1;
strncpy(tn, optarg, sizeof(tn)-1);
break;
case 's':
speed = atoi(optarg);
switch (speed) {
case 230400:
case 115200:
case 57600:
case 38400:
case 28800:
case 19200:
case 14400:
case 9600:
case 4800:
break;
default:
fprintf(stderr, "invalid port speed: %d\n", speed);
return 1;
}
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc != 1)
usage();
if (0 == speed)
speed = 4800;
printf("opening %s\n", argv[0]);
if ((ifd = open(argv[0], O_RDONLY, 0444)) == -1)
err(1, "open");
if (fstat(ifd, &sb) == -1)
err(1, "fstat");
if ((buf = mmap(0, sb.st_size, PROT_READ, MAP_FILE | MAP_PRIVATE, ifd, 0)) == MAP_FAILED)
err(1, "mmap");
if (dflag){
if ((ofd = open(tn, O_RDWR|O_NOCTTY, 0644)) == -1)
err(1, "open");
tcgetattr(ofd, &term);
cfmakeraw(&term);
cfsetispeed(&term, speed);
cfsetospeed(&term, speed);
#if 0
term.c_cflag &= ~(PARENB | PARODD | CRTSCTS);
term.c_cflag |= CREAD | CLOCAL;
term.c_iflag = term.c_oflag = term.c_lflag = (tcflag_t) 0;
#endif
tcflush(ofd, TCIOFLUSH);
tcsetattr(ofd, TCSANOW, &term);
tcflush(ofd, TCIOFLUSH);
} else {
cfmakeraw(&term);
cfsetospeed(&term, speed);
cfsetispeed(&term, speed);
if (openpty(&ofd, &sfd, tn, &term, NULL) == -1)
err(1, "openpty");
tcsetattr(ofd, TCSANOW, &term);
tcsetattr(sfd, TCSANOW, &term);
}
sleeptime = 1000000 / (speed / (WRLEN * 10));
printf("configured %s for %dbps - write delay %dus\n", tn, speed, sleeptime);
for(len = 0; len < sb.st_size; len += WRLEN ){
write(ofd, buf+len, WRLEN );
// tcdrain(ofd);
if (0 == dflag){
tcflush(ofd, TCIFLUSH);
// tcdrain(sfd);
tcflush(sfd, TCIFLUSH);
}
spinner( len );
/* wait sleeptime Sec */
delay.tv_sec = (time_t)(sleeptime / 1000000000L);
delay.tv_nsec = sleeptime % 1000000000L;
nanosleep(&delay, NULL);
}
munmap(buf, sb.st_size);
close(ifd);
close(ofd);
fprintf(stderr, "\010\010\010\010\010\010\010\010\010\010\010\010\n");
return 0;
}
void spinner(int n){
char *s = "|/-\\";
if (n % (WRLEN * 4))
return;
n /= (WRLEN * 4);
fprintf(stderr, "\010\010\010\010\010\010\010\010\010\010\010\010\010");
fprintf(stderr, "%c %d", s[n%4], n);
fflush(stderr);
}
void usage(void){
fprintf(stderr, "usage: binreplay [-d <device>] [-s <port_speed>] <file>\n");
exit(1);
}
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