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1 | /* |
2 | ** Copyright 2005-2006 Double Precision, Inc. See COPYING for |
3 | ** distribution information. |
4 | */ |
5 | |
6 | #if HAVE_CONFIG_H |
7 | #include "courier_auth_config.h" |
8 | #endif |
9 | #include <string.h> |
10 | #if HAVE_UNISTD_H |
11 | #include <unistd.h> |
12 | #endif |
13 | #include <stdlib.h> |
14 | #include <stdio.h> |
15 | #if HAVE_TERMIOS_H |
16 | #include <termios.h> |
17 | #endif |
18 | #include <signal.h> |
19 | #include "auth.h" |
20 | |
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21 | /* |
22 | ** Where possible, we turn off echo when entering the password. |
23 | ** We set up a signal handler to catch signals and restore the echo |
24 | ** prior to exiting. |
25 | */ |
26 | |
27 | #if HAVE_TERMIOS_H |
28 | static struct termios tios; |
29 | static int have_tios; |
30 | |
8d138742 |
31 | static void sighandler(int signum) |
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32 | { |
33 | if (write(1, "\n", 1) < 0) |
34 | ; /* Ignore gcc warning */ |
35 | tcsetattr(0, TCSANOW, &tios); |
36 | _exit(0); |
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37 | } |
38 | #endif |
39 | |
40 | static void read_pw(char *buf) |
41 | { |
42 | int n, c; |
43 | |
44 | n=0; |
45 | while ((c=getchar()) != EOF && c != '\n') |
46 | if (n < BUFSIZ-1) |
47 | buf[n++]=c; |
48 | if (c == EOF && n == 0) exit(1); |
49 | buf[n]=0; |
50 | } |
51 | |
52 | int main(int argc, char **argv) |
53 | { |
54 | char buf[BUFSIZ]; |
55 | char *p; |
56 | char hint[100]; |
57 | |
58 | |
59 | strcpy(hint, "$1$"); |
60 | |
61 | if (argc > 1) |
62 | { |
63 | sprintf(hint, "{%1.15s}", argv[1]); |
64 | } |
65 | |
66 | /* Read the password */ |
67 | #if HAVE_TERMIOS_H |
68 | |
69 | have_tios=0; |
70 | if (tcgetattr(0, &tios) == 0) |
71 | { |
72 | struct termios tios2; |
73 | char buf2[BUFSIZ]; |
74 | |
75 | have_tios=1; |
76 | signal(SIGINT, sighandler); |
77 | signal(SIGHUP, sighandler); |
78 | tios2=tios; |
79 | tios2.c_lflag &= ~ECHO; |
80 | tcsetattr(0, TCSANOW, &tios2); |
81 | |
82 | for (;;) |
83 | { |
84 | if (write(2, "Password: ", 10) < 0) |
85 | ; /* Ignore gcc warning */ |
86 | read_pw(buf); |
87 | if (write(2, "\nReenter password: ", 19) < 0) |
88 | ; /* Ignore gcc warning */ |
89 | read_pw(buf2); |
90 | if (strcmp(buf, buf2) == 0) break; |
91 | if (write(2, "\nPasswords don't match.\n\n", 25) < 0) |
92 | ; /* Ignore gcc warning */ |
93 | |
94 | } |
95 | |
96 | } |
97 | else |
98 | #endif |
99 | read_pw(buf); |
100 | |
101 | #if HAVE_TERMIOS_H |
102 | if (have_tios) |
103 | { |
104 | if (write(2, "\n", 1) < 0) |
105 | ; /* Ignore gcc warning */ |
106 | tcsetattr(0, TCSANOW, &tios); |
107 | signal(SIGINT, SIG_DFL); |
108 | signal(SIGHUP, SIG_DFL); |
109 | } |
110 | #endif |
111 | |
112 | p=authcryptpasswd(buf, hint); |
113 | |
114 | if (p) |
115 | printf("%s\n", p); |
116 | return (0); |
117 | } |