1 /*-
2  * Copyright (c) 2014 Michihiro NAKAJIMA
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17  * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #include "archive_platform.h"
27 __FBSDID("$FreeBSD$");
28 
29 #ifdef HAVE_ERRNO_H
30 #include <errno.h>
31 #endif
32 #include "archive_write_private.h"
33 
34 int
35 archive_write_set_passphrase(struct archive *_a, const char *p)
36 {
37 	struct archive_write *a = (struct archive_write *)_a;
38 
39 	archive_check_magic(_a, ARCHIVE_WRITE_MAGIC, ARCHIVE_STATE_NEW,
40 		"archive_write_set_passphrase");
41 
42 	if (p == NULL || p[0] == '\0') {
43 		archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
44 		    "Empty passphrase is unacceptable");
45 		return (ARCHIVE_FAILED);
46 	}
47 	free(a->passphrase);
48 	a->passphrase = strdup(p);
49 	if (a->passphrase == NULL) {
50 		archive_set_error(&a->archive, ENOMEM,
51 		    "Can't allocate data for passphrase");
52 		return (ARCHIVE_FATAL);
53 	}
54 	return (ARCHIVE_OK);
55 }
56 
57 
58 int
59 archive_write_set_passphrase_callback(struct archive *_a, void *client_data,
60     archive_passphrase_callback *cb)
61 {
62 	struct archive_write *a = (struct archive_write *)_a;
63 
64 	archive_check_magic(_a, ARCHIVE_WRITE_MAGIC, ARCHIVE_STATE_NEW,
65 		"archive_write_set_passphrase_callback");
66 
67 	a->passphrase_callback = cb;
68 	a->passphrase_client_data = client_data;
69 	return (ARCHIVE_OK);
70 }
71 
72 
73 const char *
74 __archive_write_get_passphrase(struct archive_write *a)
75 {
76 
77 	if (a->passphrase != NULL)
78 		return (a->passphrase);
79 
80 	if (a->passphrase_callback != NULL) {
81 		const char *p;
82 		p = a->passphrase_callback(&a->archive,
83 		    a->passphrase_client_data);
84 		if (p != NULL) {
85 			a->passphrase = strdup(p);
86 			if (a->passphrase == NULL) {
87 				archive_set_error(&a->archive, ENOMEM,
88 				    "Can't allocate data for passphrase");
89 				return (NULL);
90 			}
91 			return (a->passphrase);
92 		}
93 	}
94 	return (NULL);
95 }
96