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.
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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.
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.
52 * Add the given address with infinit expiration to the buffer.
55 * @param address address to add
56 * @param expiration old expiration
57 * @return GNUNET_OK keep iterating
60 add_to_buf (void *cls, const struct GNUNET_HELLO_Address *address,
61 struct GNUNET_TIME_Absolute expiration)
63 struct AddContext *ac = cls;
66 ret = GNUNET_HELLO_add_address (address,
67 GNUNET_TIME_UNIT_FOREVER_ABS,
78 * Add addresses from the address list to the HELLO.
80 * @param cls the HELLO with the addresses to add
81 * @param max maximum space available
82 * @param buf where to add the addresses
83 * @return number of bytes added, 0 to terminate
86 add_from_hello (void *cls, size_t max, void *buf)
88 struct GNUNET_HELLO_Message **orig = cls;
92 return 0; /* already done */
96 GNUNET_assert (NULL ==
97 GNUNET_HELLO_iterate_addresses (*orig,
98 GNUNET_NO, &add_to_buf,
106 main (int argc, char *argv[])
108 struct GNUNET_DISK_FileHandle *fh;
109 struct GNUNET_HELLO_Message *orig;
110 struct GNUNET_HELLO_Message *result;
111 struct GNUNET_CRYPTO_EccPublicKeyBinaryEncoded pk;
114 GNUNET_log_setup ("gnunet-hello", "INFO", NULL);
119 _("Call with name of HELLO file to modify.\n"));
122 if (GNUNET_OK != GNUNET_DISK_file_size (argv[1], &fsize, GNUNET_YES, GNUNET_YES))
125 _("Error accessing file `%s': %s\n"),
133 _("File `%s' is too big to be a HELLO\n"),
137 if (fsize < sizeof (struct GNUNET_MessageHeader))
140 _("File `%s' is too small to be a HELLO\n"),
144 fh = GNUNET_DISK_file_open (argv[1],
145 GNUNET_DISK_OPEN_READ,
146 GNUNET_DISK_PERM_USER_READ);
150 _("Error opening file `%s': %s\n"),
156 char buf[fsize] GNUNET_ALIGN;
158 GNUNET_assert (fsize ==
159 GNUNET_DISK_file_read (fh, buf, fsize));
160 GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fh));
161 orig = (struct GNUNET_HELLO_Message *) buf;
162 if ( (fsize != GNUNET_HELLO_size (orig)) ||
163 (GNUNET_OK != GNUNET_HELLO_get_key (orig, &pk)) )
166 _("Did not find well-formed HELLO in file `%s'\n"),
170 result = GNUNET_HELLO_create (&pk, &add_from_hello, &orig,
171 GNUNET_HELLO_is_friend_only (orig));
172 GNUNET_assert (NULL != result);
173 fh = GNUNET_DISK_file_open (argv[1],
174 GNUNET_DISK_OPEN_WRITE,
175 GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE);
179 _("Error opening file `%s': %s\n"),
182 GNUNET_free (result);
185 fsize = GNUNET_HELLO_size (result);
186 if (fsize != GNUNET_DISK_file_write (fh,
191 _("Error writing HELLO to file `%s': %s\n"),
194 (void) GNUNET_DISK_file_close (fh);
197 GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fh));
202 /* end of gnunet-hello.c */