2 This file is part of GNUnet
3 (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., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, 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, const struct GNUNET_HELLO_Address *address,
63 struct GNUNET_TIME_Absolute expiration)
65 struct AddContext *ac = cls;
68 ret = GNUNET_HELLO_add_address (address,
69 GNUNET_TIME_UNIT_FOREVER_ABS,
81 * Add addresses from the address list to the HELLO.
83 * @param cls the HELLO with the addresses to add
84 * @param max maximum space available
85 * @param buf where to add the addresses
86 * @return number of bytes added, 0 to terminate
89 add_from_hello (void *cls, size_t max, void *buf)
91 struct GNUNET_HELLO_Message **orig = cls;
95 return 0; /* already done */
99 GNUNET_assert (NULL ==
100 GNUNET_HELLO_iterate_addresses (*orig,
101 GNUNET_NO, &add_to_buf,
109 main (int argc, char *argv[])
111 struct GNUNET_DISK_FileHandle *fh;
112 struct GNUNET_HELLO_Message *orig;
113 struct GNUNET_HELLO_Message *result;
114 struct GNUNET_CRYPTO_EddsaPublicKey pk;
118 GNUNET_log_setup ("gnunet-hello", "INFO", NULL);
123 _("Call with name of HELLO file to modify.\n"));
126 if (GNUNET_OK != GNUNET_DISK_file_size (argv[1], &fsize, GNUNET_YES, GNUNET_YES))
129 _("Error accessing file `%s': %s\n"),
137 _("File `%s' is too big to be a HELLO\n"),
141 if (fsize < sizeof (struct GNUNET_MessageHeader))
144 _("File `%s' is too small to be a HELLO\n"),
148 fh = GNUNET_DISK_file_open (argv[1],
149 GNUNET_DISK_OPEN_READ,
150 GNUNET_DISK_PERM_USER_READ);
154 _("Error opening file `%s': %s\n"),
160 char buf[fsize] GNUNET_ALIGN;
162 GNUNET_assert (fsize ==
163 GNUNET_DISK_file_read (fh, buf, fsize));
164 GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fh));
165 orig = (struct GNUNET_HELLO_Message *) buf;
166 if ( (fsize != GNUNET_HELLO_size (orig)) ||
167 (GNUNET_OK != GNUNET_HELLO_get_key (orig, &pk)) )
170 _("Did not find well-formed HELLO in file `%s'\n"),
174 result = GNUNET_HELLO_create (&pk, &add_from_hello, &orig,
175 GNUNET_HELLO_is_friend_only (orig));
176 GNUNET_assert (NULL != result);
177 fh = GNUNET_DISK_file_open (argv[1],
178 GNUNET_DISK_OPEN_WRITE,
179 GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE);
183 _("Error opening file `%s': %s\n"),
186 GNUNET_free (result);
189 fsize = GNUNET_HELLO_size (result);
190 if (fsize != GNUNET_DISK_file_write (fh,
195 _("Error writing HELLO to file `%s': %s\n"),
198 (void) GNUNET_DISK_file_close (fh);
201 GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fh));
203 FPRINTF (stderr, _("Modified %u addresses \n"), address_count);
207 /* end of gnunet-hello.c */