chiark / gitweb /
cryptsetup: hook up tool with ask-password
[elogind.git] / src / util.c
index f41861b..f762f97 100644 (file)
@@ -3373,170 +3373,6 @@ int signal_from_string_try_harder(const char *s) {
         return signo;
 }
 
-int ask_password_tty(const char *message, usec_t until, const char *flag_file, char **_passphrase) {
-        struct termios old_termios, new_termios;
-        char passphrase[LINE_MAX];
-        size_t p = 0;
-        int r, ttyfd = -1, notify = -1;
-        struct pollfd pollfd[2];
-        bool reset_tty = false;
-        enum {
-                POLL_TTY,
-                POLL_INOTIFY
-        };
-
-        assert(message);
-        assert(_passphrase);
-
-        if (flag_file) {
-                if ((notify = inotify_init1(IN_CLOEXEC|IN_NONBLOCK)) < 0) {
-                        r = -errno;
-                        goto finish;
-                }
-
-                if (inotify_add_watch(notify, flag_file, IN_ATTRIB /* for the link count */) < 0) {
-                        r = -errno;
-                        goto finish;
-                }
-        }
-
-        if ((ttyfd = open("/dev/tty", O_RDWR|O_NOCTTY|O_CLOEXEC)) >= 0) {
-
-                if (tcgetattr(ttyfd, &old_termios) < 0) {
-                        r = -errno;
-                        goto finish;
-                }
-
-                loop_write(ttyfd, "\x1B[1m", 4, false);
-                loop_write(ttyfd, message, strlen(message), false);
-                loop_write(ttyfd, ": ", 2, false);
-                loop_write(ttyfd, "\x1B[0m", 4, false);
-
-                new_termios = old_termios;
-                new_termios.c_lflag &= ~(ICANON|ECHO);
-                new_termios.c_cc[VMIN] = 1;
-                new_termios.c_cc[VTIME] = 0;
-
-                if (tcsetattr(ttyfd, TCSADRAIN, &new_termios) < 0) {
-                        r = -errno;
-                        goto finish;
-                }
-
-                reset_tty = true;
-        }
-
-        zero(pollfd);
-
-        pollfd[POLL_TTY].fd = ttyfd >= 0 ? ttyfd : STDIN_FILENO;
-        pollfd[POLL_TTY].events = POLLIN;
-        pollfd[POLL_INOTIFY].fd = notify;
-        pollfd[POLL_INOTIFY].events = POLLIN;
-
-        for (;;) {
-                char c;
-                int sleep_for = -1, k;
-                ssize_t n;
-
-                if (until > 0) {
-                        usec_t y;
-
-                        y = now(CLOCK_MONOTONIC);
-
-                        if (y > until) {
-                                r = -ETIMEDOUT;
-                                goto finish;
-                        }
-
-                        sleep_for = (int) ((until - y) / USEC_PER_MSEC);
-                }
-
-                if (flag_file)
-                        if (access(flag_file, F_OK) < 0) {
-                                r = -errno;
-                                goto finish;
-                        }
-
-                if ((k = poll(pollfd, notify > 0 ? 2 : 1, sleep_for)) < 0) {
-
-                        if (errno == EINTR)
-                                continue;
-
-                        r = -errno;
-                        goto finish;
-                } else if (k == 0) {
-                        r = -ETIMEDOUT;
-                        goto finish;
-                }
-
-                if (notify > 0 && pollfd[POLL_INOTIFY].revents != 0)
-                        flush_fd(notify);
-
-                if (pollfd[POLL_TTY].revents == 0)
-                        continue;
-
-                if ((n = read(ttyfd >= 0 ? ttyfd : STDIN_FILENO, &c, 1)) < 0) {
-
-                        if (errno == EINTR || errno == EAGAIN)
-                                continue;
-
-                        r = -errno;
-                        goto finish;
-
-                } else if (n == 0)
-                        break;
-
-                if (c == '\n')
-                        break;
-                else if (c == 21) {
-
-                        while (p > 0) {
-                                p--;
-
-                                if (ttyfd >= 0)
-                                        loop_write(ttyfd, "\b \b", 3, false);
-                        }
-
-                } else if (c == '\b' || c == 127) {
-                        if (p > 0) {
-                                p--;
-
-                                if (ttyfd >= 0)
-                                        loop_write(ttyfd, "\b \b", 3, false);
-                        }
-                } else {
-                        passphrase[p++] = c;
-
-                        if (ttyfd >= 0)
-                                loop_write(ttyfd, "*", 1, false);
-                }
-        }
-
-        if (ttyfd >= 0)
-                loop_write(ttyfd, "\n", 1, false);
-
-        passphrase[p] = 0;
-
-        if (!(*_passphrase = strdup(passphrase))) {
-                r = -ENOMEM;
-                goto finish;
-        }
-
-        r = 0;
-
-finish:
-        if (notify >= 0)
-                close_nointr_nofail(notify);
-
-        if (ttyfd >= 0) {
-                if (reset_tty)
-                        tcsetattr(ttyfd, TCSADRAIN, &old_termios);
-
-                close_nointr_nofail(ttyfd);
-        }
-
-        return r;
-}
-
 void dual_timestamp_serialize(FILE *f, const char *name, dual_timestamp *t) {
 
         assert(f);