1 /* vi: set sw=4 ts=4: */
4 * I use a static buffer in this function. Plan accordingly.
6 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
8 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
17 #include <sys/ioctl.h>
21 /* do nothing signal handler */
22 static void askpass_timeout(int ATTRIBUTE_UNUSED ignore)
26 char *bb_askpass(int timeout, const char * prompt)
28 static char passwd[64];
33 struct termios old, new;
35 tcgetattr(STDIN_FILENO, &old);
36 tcflush(STDIN_FILENO, TCIFLUSH);
38 memset(passwd, 0, sizeof(passwd));
40 fputs(prompt, stdout);
43 tcgetattr(STDIN_FILENO, &new);
44 new.c_iflag &= ~(IUCLC|IXON|IXOFF|IXANY);
45 new.c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL|TOSTOP);
46 tcsetattr(STDIN_FILENO, TCSANOW, &new);
50 sa.sa_handler = askpass_timeout;
51 sigaction(SIGALRM, &sa, NULL);
56 if (read(STDIN_FILENO, passwd, sizeof(passwd)-1) > 0) {
59 /* Last byte is guaranteed to be 0
60 (read did not overwrite it) */
62 if (passwd[i] == '\r' || passwd[i] == '\n')
64 } while (passwd[i++]);
71 tcsetattr(STDIN_FILENO, TCSANOW, &old);