2 This file is part of GNUnet.
3 Copyright (C) 2012 GNUnet e.V.
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your 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 Affero General Public License for more details.
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
18 SPDX-License-Identifier: AGPL3.0-or-later
23 #include "nss_gns_query.h"
24 #include <arpa/inet.h>
25 #include <sys/types.h>
26 #include <sys/socket.h>
28 #include <netinet/in.h>
47 * Wrapper function that uses gnunet-gns cli tool to resolve
50 * @param af address family
51 * @param name the name to resolve
52 * @param u the userdata (result struct)
53 * @return -1 on internal error,
54 * -2 if request is not for GNS,
59 gns_resolve_name (int af,
80 (AF_INET6 == af) ? "AAAA" : "A",
86 (void) close (STDOUT_FILENO);
87 if ( (0 != close (out[0])) ||
88 (STDOUT_FILENO != dup2 (out[1], STDOUT_FILENO)) )
90 (void) execvp ("gnunet-gns",
94 (void) close (out[1]);
95 p = fdopen (out[0], "r");
101 while (NULL != fgets (line,
105 if (u->count >= MAX_ENTRIES)
107 if (line[strlen(line)-1] == '\n')
109 line[strlen(line)-1] = '\0';
114 &u->data.ipv4[u->count]))
117 u->data_len += sizeof(ipv4_address_t);
127 else if (AF_INET6 == af)
131 &u->data.ipv6[u->count]))
134 u->data_len += sizeof(ipv6_address_t);
150 if (! WIFEXITED (ret))
152 if (4 == WEXITSTATUS (ret))
153 return -2; /* not for GNS */
155 return -3; /* timeout -> not found */
156 if ( (2 == WEXITSTATUS (ret)) ||
157 (1 == WEXITSTATUS (ret)) )
158 return -2; /* launch failure -> service unavailable */
162 /* end of nss_gns_query.c */