2 * Copyright (c) 2016, Marie Helene Kvello-Aune
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * thislist of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation and/or
13 * other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
17 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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 OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/ioctl.h>
38 #include "libifconfig.h" // Needed for ifconfig_errstate
39 #include "libifconfig_internal.h"
43 ifconfig_ioctlwrap_ret(ifconfig_handle_t *h, unsigned long request, int rcode)
47 h->error.errtype = IOCTL;
48 h->error.ioctl_request = request;
49 h->error.errcode = errno;
56 ifconfig_ioctlwrap(ifconfig_handle_t *h, const int addressfamily,
57 unsigned long request, struct ifreq *ifr)
61 if (ifconfig_socket(h, addressfamily, &s) != 0) {
65 int rcode = ioctl(s, request, ifr);
66 return (ifconfig_ioctlwrap_ret(h, request, rcode));
70 * Function to get socket for the specified address family.
71 * If the socket doesn't already exist, attempt to create it.
74 ifconfig_socket(ifconfig_handle_t *h, const int addressfamily, int *s)
77 if (addressfamily > AF_MAX) {
78 h->error.errtype = SOCKET;
79 h->error.errcode = EINVAL;
83 if (h->sockets[addressfamily] != -1) {
84 *s = h->sockets[addressfamily];
88 /* We don't have a socket of that type available. Create one. */
89 h->sockets[addressfamily] = socket(addressfamily, SOCK_DGRAM, 0);
90 if (h->sockets[addressfamily] == -1) {
91 h->error.errtype = SOCKET;
92 h->error.errcode = errno;
96 *s = h->sockets[addressfamily];