int fflush(FILE* f) { int r; if (f) { FLOCK(f); r = __fflush_unlocked(f); FUNLOCK(f); return r; } r = fflush(stdout); for (f = *__ofl_lock(); f; f = f->next) { FLOCK(f); if (f->wpos > f->wbase) r |= __fflush_unlocked(f); FUNLOCK(f); } __ofl_unlock(); return r; }
int fflush(FILE *f) { int r; if (f) { FLOCK(f); r = __fflush_unlocked(f); FUNLOCK(f); return r; } r = __stdout_used ? fflush(__stdout_used) : 0; OFLLOCK(); for (f=libc.ofl_head; f; f=f->next) { FLOCK(f); if (f->wpos > f->wbase) r |= __fflush_unlocked(f); FUNLOCK(f); } OFLUNLOCK(); return r; }
char * getpass (const char *prompt) { FILE *in, *out; struct termios s, t; int tty_changed; static char *buf; static size_t bufsize; ssize_t nread; /* Try to write to and read from the terminal if we can. If we can't open the terminal, use stderr and stdin. */ in = fopen ("/dev/tty", "w+ce"); if (in == NULL) { in = stdin; out = stderr; } else { /* We do the locking ourselves. */ __fsetlocking (in, FSETLOCKING_BYCALLER); out = in; } /* Make sure the stream we opened is closed even if the thread is canceled. */ __libc_cleanup_push (call_fclose, in == out ? in : NULL); flockfile (out); /* Turn echoing off if it is on now. */ if (__tcgetattr (fileno (in), &t) == 0) { /* Save the old one. */ s = t; /* Tricky, tricky. */ t.c_lflag &= ~(ECHO|ISIG); tty_changed = (tcsetattr (fileno (in), TCSAFLUSH|TCSASOFT, &t) == 0); } else tty_changed = 0; /* Write the prompt. */ __fxprintf (out, "%s", prompt); __fflush_unlocked (out); /* Read the password. */ nread = __getline (&buf, &bufsize, in); if (buf != NULL) { if (nread < 0) buf[0] = '\0'; else if (buf[nread - 1] == '\n') { /* Remove the newline. */ buf[nread - 1] = '\0'; if (tty_changed) /* Write the newline that was not echoed. */ __fxprintf (out, "\n"); } } /* Restore the original setting. */ if (tty_changed) (void) tcsetattr (fileno (in), TCSAFLUSH|TCSASOFT, &s); funlockfile (out); __libc_cleanup_pop (0); if (in != stdin) /* We opened the terminal; now close it. */ fclose (in); return buf; }