1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/* $OpenBSD: rsync.c,v 1.7 2019/10/31 08:36:43 claudio Exp $ */
/*
* Copyright (c) 2019 Kristaps Dzonsons <kristaps@bsd.lv>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <netinet/in.h>
#include <assert.h>
#include <err.h>
#include <resolv.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/ssl.h>
#include "extern.h"
/*
* Conforms to RFC 5781.
* Note that "Source" is broken down into the module, path, and also
* file type relevant to RPKI.
* Any of the pointers (except "uri") may be NULL.
* Returns zero on failure, non-zero on success.
*/
int
rsync_uri_parse(const char **hostp, size_t *hostsz,
const char **modulep, size_t *modulesz,
const char **pathp, size_t *pathsz,
enum rtype *rtypep, const char *uri)
{
const char *host, *module, *path;
size_t sz;
/* Initialise all output values to NULL or 0. */
if (hostsz != NULL)
*hostsz = 0;
if (modulesz != NULL)
*modulesz = 0;
if (pathsz != NULL)
*pathsz = 0;
if (hostp != NULL)
*hostp = 0;
if (modulep != NULL)
*modulep = 0;
if (pathp != NULL)
*pathp = 0;
if (rtypep != NULL)
*rtypep = RTYPE_EOF;
/* Case-insensitive rsync URI. */
if (strncasecmp(uri, "rsync://", 8)) {
warnx("%s: not using rsync schema", uri);
return 0;
}
/* Parse the non-zero-length hostname. */
host = uri + 8;
if ((module = strchr(host, '/')) == NULL) {
warnx("%s: missing rsync module", uri);
return 0;
} else if (module == host) {
warnx("%s: zero-length rsync host", uri);
return 0;
}
if (hostp != NULL)
*hostp = host;
if (hostsz != NULL)
*hostsz = module - host;
/* The non-zero-length module follows the hostname. */
if (module[1] == '\0') {
warnx("%s: zero-length rsync module", uri);
return 0;
}
module++;
/* The path component is optional. */
if ((path = strchr(module, '/')) == NULL) {
assert(*module != '\0');
if (modulep != NULL)
*modulep = module;
if (modulesz != NULL)
*modulesz = strlen(module);
return 1;
} else if (path == module) {
warnx("%s: zero-length module", uri);
return 0;
}
if (modulep != NULL)
*modulep = module;
if (modulesz != NULL)
*modulesz = path - module;
path++;
sz = strlen(path);
if (pathp != NULL)
*pathp = path;
if (pathsz != NULL)
*pathsz = sz;
if (rtypep != NULL && sz > 4) {
if (strcasecmp(path + sz - 4, ".roa") == 0)
*rtypep = RTYPE_ROA;
else if (strcasecmp(path + sz - 4, ".mft") == 0)
*rtypep = RTYPE_MFT;
else if (strcasecmp(path + sz - 4, ".cer") == 0)
*rtypep = RTYPE_CER;
else if (strcasecmp(path + sz - 4, ".crl") == 0)
*rtypep = RTYPE_CRL;
}
return 1;
}
|
