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#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 <util.h>
#define WRLEN 256
void spinner(int);
int main( int argc, char **argv){
struct stat sb;
struct termios term;
char *buf, tn[32];
int ifd, ofd, sfd, t, l, speed;
if (argc != 3 ){
fprintf(stderr, "usage: binreplay <speed> <file>\n");
return 1;
}
speed = atoi(argv[1]);
switch (speed) {
case 230400:
case 115200:
case 57600:
case 38400:
case 28800:
case 14400:
case 9600:
case 4800:
break;
default:
fprintf(stderr, "invalid speed\n");
return 1;
}
if ((ifd = open(argv[2], 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, ifd, 0)) == MAP_FAILED)
err(1, "mmap");
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);
chmod(tn, 0444);
printf("configured %s for %dbps\n", tn, speed);
t = 1000000 / (speed / 8);
for(l = 0; l < sb.st_size; l += WRLEN ){
write(ofd, buf+l, WRLEN );
tcdrain(ofd);
// tcdrain(sfd);
tcflush(ofd, TCIFLUSH);
tcflush(sfd, TCIFLUSH);
spinner( l );
usleep(t);
}
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);
}
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