xref: /freebsd/crypto/heimdal/lib/krb5/prompter_posix.c (revision 62cfcf62f627e5093fb37026a6d8c98e4d2ef04c)
1 /*
2  * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
3  * (Royal Institute of Technology, Stockholm, Sweden).
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  *
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.
16  *
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.
20  *
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
31  * SUCH DAMAGE.
32  */
33 
34 #include "krb5_locl.h"
35 
36 KRB5_LIB_FUNCTION int KRB5_CALLCONV
37 krb5_prompter_posix (krb5_context context,
38 		     void *data,
39 		     const char *name,
40 		     const char *banner,
41 		     int num_prompts,
42 		     krb5_prompt prompts[])
43 {
44     int i;
45 
46     if (name)
47 	fprintf (stderr, "%s\n", name);
48     if (banner)
49 	fprintf (stderr, "%s\n", banner);
50     if (name || banner)
51 	fflush(stderr);
52     for (i = 0; i < num_prompts; ++i) {
53 	if (prompts[i].hidden) {
54 	    if(UI_UTIL_read_pw_string(prompts[i].reply->data,
55 				  prompts[i].reply->length,
56 				  prompts[i].prompt,
57 				  0))
58 	       return 1;
59 	} else {
60 	    char *s = prompts[i].reply->data;
61 
62 	    fputs (prompts[i].prompt, stdout);
63 	    fflush (stdout);
64 	    if(fgets(prompts[i].reply->data,
65 		     prompts[i].reply->length,
66 		     stdin) == NULL)
67 		return 1;
68 	    s[strcspn(s, "\n")] = '\0';
69 	}
70     }
71     return 0;
72 }
73