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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/*
* DCAP - dCache Access Protocol client interface
*
* Copyright (C) 2000,2004 DESY Hamburg DMG-Division.
*
* AUTHOR: Tigran Mkrtchayn (tigran.mkrtchyan@desy.de)
*
* This program can be distributed under the terms of the GNU LGPL.
* See the file COPYING.LIB
*
*/
/*
* $Id: dcap_url.c,v 1.17 2005-08-15 10:05:03 tigran Exp $
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <netdb.h>
#include "dcap.h"
#include "dcap_types.h"
#include "dcap_errno.h"
#include "dcap_error.h"
#include "dcap_url.h"
#include "debug_level.h"
#include "xutil.h"
#include "dcap_str_util.h"
#define DCAP_PREFIX "dcap://"
#define PNFS_PREFIX "pnfs://"
#define DEFAULT_DOOR "dcache"
int isUrl( const char *path)
{
return (strstr(path, DCAP_PREFIX) != NULL ) || (strstr(path, PNFS_PREFIX) != NULL ) ;
}
dcap_url* dc_getURL( const char *path )
{
dcap_url *url;
char *s;
char *w;
char *host;
int host_len;
int type = URL_NONE;
int def_door_len;
char *domain;
struct servent *se;
short port;
if(path == NULL) {
dc_errno = DEURL;
return NULL;
}
s = strstr(path, DCAP_PREFIX);
if( s != NULL ) {
type = URL_DCAP;
}else{
s = strstr(path, PNFS_PREFIX);
if( s != NULL ) {
type = URL_PNFS;
}
}
if( (type != URL_DCAP) && (type != URL_PNFS) ) {
dc_errno = DEURL;
return NULL;
}
url = (dcap_url *)malloc(sizeof(dcap_url));
if(url == NULL) {
dc_debug(DC_ERROR, "Failed to allocate dcap_url for %s", path);
return NULL;
}
url->host = NULL;
url->file = NULL;
url->prefix = NULL;
url->type= type;
if( s != path ) {
url->prefix = (char *)xstrndup(path, s - path );
}else{
s = (char *)path;
}
/* now s is a pointer to url without prefix */
s = (char *)(s + strlen(DCAP_PREFIX));
/* w points to a first / in the path */
w = strchr(s, '/');
if(w == NULL) {
free(url);
return NULL;
}
url->file = strdup(w + 1);
host_len = w-s;
if( host_len != 0 ) {
host = xstrndup(s, host_len );
if(host == NULL) {
dc_debug(DC_ERROR, "Failed to duplicate host in url %s", path);
free(url);
return NULL;
}
/* if port not specified, take it from /etc/services or fall back to default */
w = strchr(host, ':');
if( w == NULL ) {
w = strchr(path, ':');
w = xstrndup(path, w - path);
se = getservbyname(w, "tcp");
free(w);
port = se ? ntohs(se->s_port) : DEFAULT_DOOR_PORT;
url->host = malloc(host_len + 1 + 8);
url->host[0] = '\0';
sprintf(url->host, "%s:%d", host, port );
free(host);
}else{
url->host = host;
}
}else{
if( url->type == URL_PNFS ) {
free(url);
return NULL;
}
domain = strchr(w + 1, '/');
if( domain == NULL ) {
free(url);
return NULL;
}
domain++;
w = strchr(domain , '/');
if( w == NULL ) {
w = (char *) domain + strlen(domain);
}
host_len = w - domain ;
def_door_len = strlen(DEFAULT_DOOR);
url->host = (char *)malloc( def_door_len + host_len + host_len > 0 ? 2 : 1);
if(url->host == NULL) {
dc_debug(DC_ERROR, "Failed to allocate hostname for %s", path);
free(url);
return NULL;
}
memcpy(url->host, DEFAULT_DOOR , def_door_len);
if(host_len) {
memcpy(url->host + def_door_len, ".", 1);
}
memcpy(url->host + def_door_len +1, domain, host_len);
url->host[host_len + def_door_len +1] = '\0';
}
return url;
}
char * url2config(char *configLine, size_t configLineSize, dcap_url *url)
{
snprintf(configLine, configLineSize, "%s", url->host);
configLine[configLineSize-1] = '\0';
if ( url->prefix != NULL ) {
dc_snaprintf(configLine, configLineSize, ":lib%sTunnel.so", url->prefix );
}
return configLine;
}
|
