2 * Copyright (c) 1997 - 2000, 2005 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48 static sig_atomic_t intr_flag
;
61 read_string(const char *preprompt
, const char *prompt
,
62 char *buf
, size_t len
, int echo
)
64 struct sigaction sigs
[NSIG
];
74 struct termios t_new
, t_old
;
76 memset(&oksigs
, 0, sizeof(oksigs
));
78 memset(&sa
, 0, sizeof(sa
));
80 sigemptyset(&sa
.sa_mask
);
82 for(i
= 1; i
< sizeof(sigs
) / sizeof(sigs
[0]); i
++)
84 if (sigaction(i
, &sa
, &sigs
[i
]) == 0)
87 if((tty
= fopen("/dev/tty", "r")) == NULL
)
90 fprintf(stderr
, "%s%s", preprompt
, prompt
);
94 tcgetattr(fileno(tty
), &t_old
);
95 memcpy(&t_new
, &t_old
, sizeof(t_new
));
96 t_new
.c_lflag
&= ~ECHO
;
97 tcsetattr(fileno(tty
), TCSANOW
, &t_new
);
101 while(intr_flag
== 0){
112 of
= (p
== buf
+ len
);
120 tcsetattr(fileno(tty
), TCSANOW
, &t_old
);
126 for(i
= 1; i
< sizeof(sigs
) / sizeof(sigs
[0]); i
++)
128 sigaction(i
, &sigs
[i
], NULL
);
140 UI_UTIL_read_pw_string(char *buf
, int length
, const char *prompt
, int verify
)
144 ret
= read_string("", prompt
, buf
, length
, 0);
150 buf2
= malloc(length
);
154 ret
= read_string("Verify password - ", prompt
, buf2
, length
, 0);
159 if (strcmp(buf2
, buf
) != 0)