- fprintf(stderr, "lost connection\n");
- exit(1);
-}
-
-
-void
-alarmtimer(int wait)
-{
- struct itimerval itv;
-
- itv.it_value.tv_sec = wait;
- itv.it_value.tv_usec = 0;
- itv.it_interval = itv.it_value;
- setitimer(ITIMER_REAL, &itv, NULL);
-}
-
-void
-updateprogressmeter(int ignore)
-{
- int save_errno = errno;
-
- progressmeter(0);
- errno = save_errno;
-}
-
-int
-foregroundproc()
-{
- static pid_t pgrp = -1;
- int ctty_pgrp;
-
- if (pgrp == -1)
- pgrp = getpgrp();
-
- return ((ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 &&
- ctty_pgrp == pgrp));
-}
-
-void
-progressmeter(int flag)
-{
- static const char prefixes[] = " KMGTP";
- static struct timeval lastupdate;
- static off_t lastsize;
- struct timeval now, td, wait;
- off_t cursize, abbrevsize;
- double elapsed;
- int ratio, barlength, i, remaining;
- char buf[256];
-
- if (flag == -1) {
- (void) gettimeofday(&start, (struct timezone *) 0);
- lastupdate = start;
- lastsize = 0;
- }
- if (foregroundproc() == 0)
- return;
-
- (void) gettimeofday(&now, (struct timezone *) 0);
- cursize = statbytes;
- if (totalbytes != 0) {
- ratio = 100.0 * cursize / totalbytes;
- ratio = MAX(ratio, 0);
- ratio = MIN(ratio, 100);
- } else
- ratio = 100;
-
- snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
-
- barlength = getttywidth() - 51;
- if (barlength > 0) {
- i = barlength * ratio / 100;
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- "|%.*s%*s|", i,
- "*****************************************************************************"
- "*****************************************************************************",
- barlength - i, "");
- }
- i = 0;
- abbrevsize = cursize;
- while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
- i++;
- abbrevsize >>= 10;
- }
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5d %c%c ",
- (int) abbrevsize, prefixes[i], prefixes[i] == ' ' ? ' ' :
- 'B');
-
- timersub(&now, &lastupdate, &wait);
- if (cursize > lastsize) {
- lastupdate = now;
- lastsize = cursize;
- if (wait.tv_sec >= STALLTIME) {
- start.tv_sec += wait.tv_sec;
- start.tv_usec += wait.tv_usec;
- }
- wait.tv_sec = 0;
- }
- timersub(&now, &start, &td);
- elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
-
- if (statbytes <= 0 || elapsed <= 0.0 || cursize > totalbytes) {
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- " --:-- ETA");
- } else if (wait.tv_sec >= STALLTIME) {
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- " - stalled -");
- } else {
- remaining = (int) (totalbytes / (statbytes / elapsed) - elapsed);
- i = remaining / 3600;
- if (i)
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- "%2d:", i);
- else
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- " ");
- i = remaining % 3600;
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- "%02d:%02d ETA", i / 60, i % 60);
- }
- atomicio(write, fileno(stdout), buf, strlen(buf));
-
- if (flag == -1) {
- struct sigaction sa;
- sa.sa_handler = updateprogressmeter;
- sigemptyset(&sa.sa_mask);
- sa.sa_flags = SA_RESTART;
- sigaction(SIGALRM, &sa, NULL);
- alarmtimer(1);
- } else if (flag == 1) {
- alarmtimer(0);
- write(fileno(stdout), "\n", 1);
- statbytes = 0;
- }
-}
-
-int
-getttywidth(void)
-{
- struct winsize winsize;
-
- if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
- return (winsize.ws_col ? winsize.ws_col : 80);