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
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30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 RCSID("$Id: ui.c,v 1.6 2006/09/22 15:45:57 lha Exp $");
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)