|
@@ -1,98 +0,0 @@
|
1
|
|
-#include "string.h"
|
2
|
|
-#include "resolv.h"
|
3
|
|
-#include "etherboot.h" /* for arptable */
|
4
|
|
-#include "url.h"
|
5
|
|
-
|
6
|
|
-/*
|
7
|
|
- * Parse a URL and deduce a struct protocol *, a struct sockaddr_in
|
8
|
|
- * and a char *filename.
|
9
|
|
- *
|
10
|
|
- * We accept URLs of the form
|
11
|
|
- *
|
12
|
|
- * [protocol://[host][:port]/]path/to/file
|
13
|
|
- *
|
14
|
|
- * Returns 1 for success, 0 for failure (e.g. unknown protocol).
|
15
|
|
- *
|
16
|
|
- */
|
17
|
|
-int parse_url ( char *url, struct protocol **proto,
|
18
|
|
- struct sockaddr_in *server, char **filename ) {
|
19
|
|
- char *p;
|
20
|
|
- char *protocol = NULL;
|
21
|
|
- char *host = NULL;
|
22
|
|
- char *port = NULL;
|
23
|
|
- int rc = 0;
|
24
|
|
-
|
25
|
|
- DBG ( "URL parsing \"%s\"\n", url );
|
26
|
|
-
|
27
|
|
- /* If no protocol is present, the whole URL will be a filename */
|
28
|
|
- *filename = url;
|
29
|
|
-
|
30
|
|
- /* Search for a protocol delimiter. If found, parse out the
|
31
|
|
- * host and port parts of the URL, inserting NULs to terminate
|
32
|
|
- * the different sections.
|
33
|
|
- */
|
34
|
|
- for ( p = url ; *p ; p++ ) {
|
35
|
|
- if ( memcmp ( p, "://", 3 ) != 0 )
|
36
|
|
- continue;
|
37
|
|
-
|
38
|
|
- /* URL has an explicit protocol */
|
39
|
|
- *p = '\0';
|
40
|
|
- p += 3;
|
41
|
|
- protocol = url;
|
42
|
|
- host = p;
|
43
|
|
-
|
44
|
|
- /* Search for port and file delimiters */
|
45
|
|
- for ( ; *p ; p++ ) {
|
46
|
|
- if ( *p == ':' ) {
|
47
|
|
- *p = '\0';
|
48
|
|
- port = p + 1;
|
49
|
|
- continue;
|
50
|
|
- }
|
51
|
|
- if ( *p == '/' ) {
|
52
|
|
- *(p++) = '\0';
|
53
|
|
- break;
|
54
|
|
- }
|
55
|
|
- }
|
56
|
|
- *filename = p;
|
57
|
|
-
|
58
|
|
- break;
|
59
|
|
- }
|
60
|
|
- DBG ( "URL protocol \"%s\" host \"%s\" port \"%s\" file \"%s\"\n",
|
61
|
|
- protocol ? protocol : "(default)", host ? host : "(default)",
|
62
|
|
- port ? port : "(default)", *filename );
|
63
|
|
-
|
64
|
|
- /* Identify the protocol */
|
65
|
|
- *proto = identify_protocol ( protocol );
|
66
|
|
- if ( ! *proto ) {
|
67
|
|
- DBG ( "URL unknown protocol \"%s\"\n",
|
68
|
|
- protocol ? protocol : "(default)" );
|
69
|
|
- goto out;
|
70
|
|
- }
|
71
|
|
-
|
72
|
|
- /* Identify the host */
|
73
|
|
- server->sin_addr = arptable[ARP_SERVER].ipaddr;
|
74
|
|
- if ( host && host[0] ) {
|
75
|
|
- if ( ! resolv ( &server->sin_addr, host ) ) {
|
76
|
|
- DBG ( "URL unknown host \"%s\"\n", host );
|
77
|
|
- goto out;
|
78
|
|
- }
|
79
|
|
- }
|
80
|
|
-
|
81
|
|
- /* Identify the port */
|
82
|
|
- server->sin_port = (*proto)->default_port;
|
83
|
|
- if ( port && port[0] ) {
|
84
|
|
- server->sin_port = strtoul ( port, NULL, 10 );
|
85
|
|
- }
|
86
|
|
-
|
87
|
|
- rc = 1;
|
88
|
|
-
|
89
|
|
- out:
|
90
|
|
- /* Fill back in the original URL */
|
91
|
|
- if ( protocol ) {
|
92
|
|
- (*filename)[-1] = '/';
|
93
|
|
- if ( port )
|
94
|
|
- port[-1] = ':';
|
95
|
|
- host[-3] = ':';
|
96
|
|
- }
|
97
|
|
- return rc;
|
98
|
|
-}
|