Last change
on this file since 1426 was 821, checked in by Bruno Cornec, 18 years ago |
Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)
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File size:
1.5 KB
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1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * Ask for a password
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4 | * I use a static buffer in this function. Plan accordingly.
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5 | *
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6 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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7 | *
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8 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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9 | */
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10 |
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11 | #include <stdio.h>
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12 | #include <string.h>
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13 | #include <unistd.h>
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14 | #include <fcntl.h>
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15 | #include <signal.h>
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16 | #include <termios.h>
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17 | #include <sys/ioctl.h>
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18 |
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19 | #include "libbb.h"
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20 | #define PWD_BUFFER_SIZE 256
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21 |
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22 |
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23 | /* do nothing signal handler */
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24 | static void askpass_timeout(int ATTRIBUTE_UNUSED ignore)
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25 | {
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26 | }
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27 |
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28 | char *bb_askpass(int timeout, const char * prompt)
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29 | {
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30 | char *ret;
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31 | int i, size;
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32 | struct sigaction sa;
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33 | struct termios old, new;
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34 | static char passwd[PWD_BUFFER_SIZE];
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35 |
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36 | tcgetattr(STDIN_FILENO, &old);
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37 | tcflush(STDIN_FILENO, TCIFLUSH);
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38 |
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39 | size = sizeof(passwd);
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40 | ret = passwd;
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41 | memset(passwd, 0, size);
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42 |
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43 | fputs(prompt, stdout);
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44 | fflush(stdout);
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45 |
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46 | tcgetattr(STDIN_FILENO, &new);
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47 | new.c_iflag &= ~(IUCLC|IXON|IXOFF|IXANY);
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48 | new.c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL|TOSTOP);
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49 | tcsetattr(STDIN_FILENO, TCSANOW, &new);
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50 |
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51 | if (timeout) {
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52 | sa.sa_flags = 0;
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53 | sa.sa_handler = askpass_timeout;
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54 | sigaction(SIGALRM, &sa, NULL);
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55 | alarm(timeout);
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56 | }
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57 |
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58 | if (read(STDIN_FILENO, passwd, size-1) <= 0) {
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59 | ret = NULL;
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60 | } else {
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61 | for(i = 0; i < size && passwd[i]; i++) {
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62 | if (passwd[i]== '\r' || passwd[i] == '\n') {
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63 | passwd[i]= 0;
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64 | break;
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65 | }
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66 | }
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67 | }
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68 |
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69 | if (timeout) {
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70 | alarm(0);
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71 | }
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72 |
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73 | tcsetattr(STDIN_FILENO, TCSANOW, &old);
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74 | fputs("\n", stdout);
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75 | fflush(stdout);
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76 | return ret;
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77 | }
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78 |
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