2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2020 Ryan Moeller <freqlabs@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
33 #include <netinet/in.h>
42 #include <libcasper.h>
43 #include <libcasper_service.h>
45 #include "cap_netdb.h"
47 static struct protoent *
48 protoent_unpack(nvlist_t *nvl)
54 pp = malloc(sizeof(*pp));
60 pp->p_name = nvlist_take_string(nvl, "name");
62 aliases = nvlist_take_string_array(nvl, "aliases", &n);
63 pp->p_aliases = realloc(aliases, sizeof(char *) * (n + 1));
64 if (pp->p_aliases == NULL) {
73 pp->p_aliases[n] = NULL;
75 pp->p_proto = (int)nvlist_take_number(nvl, "proto");
82 cap_getprotobyname(cap_channel_t *chan, const char *name)
86 nvl = nvlist_create(0);
87 nvlist_add_string(nvl, "cmd", "getprotobyname");
88 nvlist_add_string(nvl, "name", name);
89 nvl = cap_xfer_nvlist(chan, nvl);
92 if (dnvlist_get_number(nvl, "error", 0) != 0) {
96 return (protoent_unpack(nvl));
100 protoent_pack(const struct protoent *pp, nvlist_t *nvl)
104 nvlist_add_string(nvl, "name", pp->p_name);
106 while (pp->p_aliases[n] != NULL)
108 nvlist_add_string_array(nvl, "aliases",
109 (const char * const *)pp->p_aliases, n);
111 nvlist_add_number(nvl, "proto", (uint64_t)pp->p_proto);
115 netdb_getprotobyname(const nvlist_t *limits __unused, const nvlist_t *nvlin,
121 name = dnvlist_get_string(nvlin, "name", NULL);
125 pp = getprotobyname(name);
129 protoent_pack(pp, nvlout);
134 netdb_limit(const nvlist_t *oldlimits __unused,
135 const nvlist_t *newlimits __unused)
142 netdb_command(const char *cmd, const nvlist_t *limits, nvlist_t *nvlin,
147 if (strcmp(cmd, "getprotobyname") == 0)
148 error = netdb_getprotobyname(limits, nvlin, nvlout);
155 CREATE_SERVICE("system.netdb", netdb_limit, netdb_command, 0);