2 This file is part of GNUnet
3 (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
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11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
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16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 * @file transport/plugin_transport_http_common.c
23 * @brief functionality shared by http client and server transport service plugin
24 * @author Matthias Wachs
28 #include "gnunet_common.h"
29 #include "gnunet_transport_plugin.h"
32 * Convert the transports address to a nice, human-readable
36 * @param type name of the transport that generated the address
37 * @param addr one of the addresses of the host, NULL for the last address
38 * the specific address format depends on the transport
39 * @param addrlen length of the address
40 * @param numeric should (IP) addresses be displayed in numeric form?
41 * @param timeout after how long should we give up?
42 * @param asc function to call on each string
43 * @param asc_cls closure for asc
46 http_common_plugin_address_pretty_printer (void *cls, const char *type,
47 const void *addr, size_t addrlen,
49 struct GNUNET_TIME_Relative timeout,
50 GNUNET_TRANSPORT_AddressStringCallback
53 const char *saddr = (const char *) addr;
55 if ( (NULL == saddr) ||
57 ('\0' != saddr[addrlen-1]) )
68 * Function called for a quick conversion of the binary address to
69 * a numeric address. Note that the caller must not free the
70 * address and that the next call to this function is allowed
71 * to override the address again.
74 * @param addr binary address
75 * @param addrlen length of the address
76 * @return string representing the same address
79 http_common_plugin_address_to_string (void *cls, const void *addr, size_t addrlen)
81 const char *saddr = (const char *) addr;
86 if (saddr[addrlen-1] != '\0')
92 * Function called to convert a string address to
95 * @param cls closure ('struct Plugin*')
96 * @param addr string address
97 * @param addrlen length of the address
98 * @param buf location to store the buffer
99 * If the function returns GNUNET_SYSERR, its contents are undefined.
100 * @param added length of created address
101 * @return GNUNET_OK on success, GNUNET_SYSERR on failure
104 http_common_plugin_string_to_address (void *cls,
111 return GNUNET_SYSERR;
113 return GNUNET_SYSERR;
114 if (addr[addrlen-1] != '\0')
115 return GNUNET_SYSERR;
117 (*buf) = strdup (addr);
118 (*added) = strlen (addr) + 1;
123 * Create a HTTP address from a socketaddr
125 * @param protocol protocol
126 * @param addr sockaddr * address
127 * @param addrlen length of the address
131 http_common_address_from_socket (const char *protocol, const struct sockaddr *addr, socklen_t addrlen)
134 GNUNET_asprintf(&res, "%s://%s", protocol, GNUNET_a2s (addr, addrlen));
139 * Create a socketaddr from a HTTP address
141 * @param addr sockaddr * address
142 * @param addrlen length of the address
143 * @param res the result:
144 * GNUNET_SYSERR, invalid input,
145 * GNUNET_YES: could convert to ip,
146 * GNUNET_NO: valid input but could not convert to ip (hostname?)
150 http_common_socket_from_address (const void *addr, size_t addrlen, int *res)
152 struct sockaddr_storage *s;
156 (*res) = GNUNET_SYSERR;
168 if (((char *) addr)[addrlen-1] != '\0')
174 addrs_org = strdup ((char *) addr);
175 addrs = strstr (addrs_org , "://");
179 GNUNET_free (addrs_org);
183 if (strlen (addrs) < 3)
186 GNUNET_free (addrs_org);
192 addrs_end = strchr (addrs, '/');
193 if (NULL != addrs_end)
194 addrs[strlen (addrs) - strlen(addrs_end)] = '\0';
196 s = GNUNET_malloc (sizeof (struct sockaddr_storage));
197 if (GNUNET_SYSERR == GNUNET_STRINGS_to_address_ip (addrs, strlen(addrs), s))
199 /* could be a hostname */
201 GNUNET_free (addrs_org);
207 if ((AF_INET != s->ss_family) && (AF_INET6 != s->ss_family))
211 GNUNET_free (addrs_org);
212 (*res) = GNUNET_SYSERR;
217 GNUNET_free (addrs_org);
218 return (struct sockaddr *) s;
222 * Get the length of an address
224 * @param addr address
228 http_common_address_get_size (const void *addr)
230 return strlen (addr) + 1;
234 * Compare addr1 to addr2
236 * @param addr1 address1
237 * @param addrlen1 address 1 length
238 * @param addr2 address2
239 * @param addrlen2 address 2 length
240 * @return GNUNET_YES if equal, GNUNET_NO if not, GNUNET_SYSERR on error
243 http_common_cmp_addresses (const void *addr1, size_t addrlen1, const void *addr2, size_t addrlen2)
245 const char *a1 = (const char *) addr1;
246 const char *a2 = (const char *) addr2;
249 return GNUNET_SYSERR;
251 return GNUNET_SYSERR;
252 if (a1[addrlen1-1] != '\0')
253 return GNUNET_SYSERR;
256 return GNUNET_SYSERR;
258 return GNUNET_SYSERR;
259 if (a2[addrlen2-1] != '\0')
260 return GNUNET_SYSERR;
262 if (addrlen1 != addrlen2)
265 if (0 == strcmp (addr1, addr2))
272 /* end of plugin_transport_http_common.c */