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69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#ifdef HAVE_LIBWRAP
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#include <tcpd.h>
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#endif
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#include "tcpwrap.h"
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#include "log.h"
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bool socket_tcpwrap(int fd, const char *name) {
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#ifdef HAVE_LIBWRAP
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struct request_info req;
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union {
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struct sockaddr sa;
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struct sockaddr_in in;
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struct sockaddr_in6 in6;
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struct sockaddr_un un;
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struct sockaddr_storage storage;
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} sa_union;
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socklen_t l = sizeof(sa_union);
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if (getsockname(fd, &sa_union.sa, &l) < 0)
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return true;
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if (sa_union.sa.sa_family != AF_INET &&
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sa_union.sa.sa_family != AF_INET6)
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return true;
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request_init(&req,
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RQ_DAEMON, name,
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RQ_FILE, fd,
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NULL);
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fromhost(&req);
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if (!hosts_access(&req)) {
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log_warning("Connection refused by tcpwrap.");
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return false;
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}
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log_debug("Connection accepted by tcpwrap.");
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#endif
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return true;
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}
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