2 This file is part of GNUnet
3 Copyright (C) 2012 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.
10 GNUnet is distributed in the hope that it will be useful, but
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.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA.
21 * @file hello/gnunet-hello.c
22 * @brief change HELLO files to never expire
23 * @author Christian Grothoff
26 #include "gnunet_protocols.h"
27 #include "gnunet_hello_lib.h"
30 * Closure for 'add_to_buf'.
40 * Maximum number of bytes left
45 * Number of bytes added so far.
50 static int address_count;
54 * Add the given address with infinit expiration to the buffer.
57 * @param address address to add
58 * @param expiration old expiration
59 * @return #GNUNET_OK keep iterating
62 add_to_buf (void *cls,
63 const struct GNUNET_HELLO_Address *address,
64 struct GNUNET_TIME_Absolute expiration)
66 struct AddContext *ac = cls;
69 ret = GNUNET_HELLO_add_address (address,
70 GNUNET_TIME_UNIT_FOREVER_ABS,
82 * Add addresses from the address list to the HELLO.
84 * @param cls the HELLO with the addresses to add
85 * @param max maximum space available
86 * @param buf where to add the addresses
87 * @return number of bytes added, 0 to terminate
90 add_from_hello (void *cls,
94 struct GNUNET_HELLO_Message **orig = cls;
98 return GNUNET_SYSERR; /* already done */
102 GNUNET_assert (NULL ==
103 GNUNET_HELLO_iterate_addresses (*orig,
104 GNUNET_NO, &add_to_buf,
112 main (int argc, char *argv[])
114 struct GNUNET_DISK_FileHandle *fh;
115 struct GNUNET_HELLO_Message *orig;
116 struct GNUNET_HELLO_Message *result;
117 struct GNUNET_PeerIdentity pid;
121 GNUNET_log_setup ("gnunet-hello", "INFO", NULL);
126 _("Call with name of HELLO file to modify.\n"));
129 if (GNUNET_OK != GNUNET_DISK_file_size (argv[1], &fsize, GNUNET_YES, GNUNET_YES))
132 _("Error accessing file `%s': %s\n"),
140 _("File `%s' is too big to be a HELLO\n"),
144 if (fsize < sizeof (struct GNUNET_MessageHeader))
147 _("File `%s' is too small to be a HELLO\n"),
151 fh = GNUNET_DISK_file_open (argv[1],
152 GNUNET_DISK_OPEN_READ,
153 GNUNET_DISK_PERM_USER_READ);
157 _("Error opening file `%s': %s\n"),
163 char buf[fsize] GNUNET_ALIGN;
165 GNUNET_assert (fsize ==
166 GNUNET_DISK_file_read (fh, buf, fsize));
167 GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fh));
168 orig = (struct GNUNET_HELLO_Message *) buf;
169 if ( (fsize < GNUNET_HELLO_size (orig)) ||
170 (GNUNET_OK != GNUNET_HELLO_get_id (orig,
174 _("Did not find well-formed HELLO in file `%s'\n"),
181 pids = GNUNET_CRYPTO_eddsa_public_key_to_string (&pid.public_key);
183 "Processing HELLO for peer `%s'\n",
187 result = GNUNET_HELLO_create (&pid.public_key,
190 GNUNET_HELLO_is_friend_only (orig));
191 GNUNET_assert (NULL != result);
192 fh = GNUNET_DISK_file_open (argv[1],
193 GNUNET_DISK_OPEN_WRITE,
194 GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE);
198 _("Error opening file `%s': %s\n"),
201 GNUNET_free (result);
204 fsize = GNUNET_HELLO_size (result);
205 if (fsize != GNUNET_DISK_file_write (fh,
210 _("Error writing HELLO to file `%s': %s\n"),
213 (void) GNUNET_DISK_file_close (fh);
216 GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fh));
218 FPRINTF (stderr, _("Modified %u addresses \n"), address_count);
222 /* end of gnunet-hello.c */