diff options
Diffstat (limited to 'libc/bionic/if_nametoindex.c')
-rw-r--r-- | libc/bionic/if_nametoindex.c | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/libc/bionic/if_nametoindex.c b/libc/bionic/if_nametoindex.c deleted file mode 100644 index d670e43..0000000 --- a/libc/bionic/if_nametoindex.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <string.h> -#include <unistd.h> -#include <linux/sockios.h> -#include <net/if.h> -#include <sys/socket.h> -#include <sys/ioctl.h> - -/* - * Map an interface name into its corresponding index. - * Returns 0 on error, as 0 is not a valid index. - */ -unsigned int if_nametoindex(const char *ifname) -{ - int index; - int ctl_sock; - struct ifreq ifr; - - memset(&ifr, 0, sizeof(struct ifreq)); - strncpy(ifr.ifr_name, ifname, IFNAMSIZ); - ifr.ifr_name[IFNAMSIZ - 1] = 0; - - index = 0; - if ((ctl_sock = socket(AF_INET, SOCK_DGRAM, 0)) >= 0) { - if (ioctl(ctl_sock, SIOCGIFINDEX, &ifr) >= 0) { - index = ifr.ifr_ifindex; - } - close(ctl_sock); - } - return index; -} |