diff options
Diffstat (limited to 'sysdeps/mach/hurd/if_index.c')
| -rw-r--r-- | sysdeps/mach/hurd/if_index.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/sysdeps/mach/hurd/if_index.c b/sysdeps/mach/hurd/if_index.c deleted file mode 100644 index 2b9041a3ba..0000000000 --- a/sysdeps/mach/hurd/if_index.c +++ /dev/null @@ -1,196 +0,0 @@ -/* Find network interface names and index numbers. Hurd version. - Copyright (C) 2000-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <error.h> -#include <net/if.h> -#include <string.h> -#include <sys/ioctl.h> -#include <unistd.h> - -#include <hurd.h> -#include <hurd/ioctl.h> -#include <hurd/pfinet.h> - -/* Return the interface index corresponding to interface IFNAME. - On error, return 0. */ -unsigned int -__if_nametoindex (const char *ifname) -{ - struct ifreq ifr; - int fd = __opensock (); - - if (fd < 0) - return 0; - - strncpy (ifr.ifr_name, ifname, IFNAMSIZ); - if (__ioctl (fd, SIOCGIFINDEX, &ifr) < 0) - { - int saved_errno = errno; - __close (fd); - if (saved_errno == EINVAL || saved_errno == ENOTTY) - __set_errno (ENOSYS); - return 0; - } - __close (fd); - return ifr.ifr_ifindex; -} -libc_hidden_def (__if_nametoindex) -weak_alias (__if_nametoindex, if_nametoindex) -libc_hidden_weak (if_nametoindex) - -/* Free the structure IFN returned by if_nameindex. */ -void -__if_freenameindex (struct if_nameindex *ifn) -{ - struct if_nameindex *ptr = ifn; - while (ptr->if_name || ptr->if_index) - { - free (ptr->if_name); - ++ptr; - } - free (ifn); -} -libc_hidden_def (__if_freenameindex) -weak_alias (__if_freenameindex, if_freenameindex) -libc_hidden_weak (if_freenameindex) - -/* Return an array of if_nameindex structures, one for each network - interface present, plus one indicating the end of the array. On - error, return NULL. */ -struct if_nameindex * -__if_nameindex (void) -{ - error_t err = 0; - char data[2048]; - file_t server; - int fd = __opensock (); - struct ifconf ifc; - unsigned int nifs, i; - struct if_nameindex *idx = NULL; - - ifc.ifc_buf = data; - - if (fd < 0) - return NULL; - - server = _hurd_socket_server (PF_INET, 0); - if (server == MACH_PORT_NULL) - nifs = 0; - else - { - size_t len = sizeof data; - err = __pfinet_siocgifconf (server, -1, &ifc.ifc_buf, &len); - if (err == MACH_SEND_INVALID_DEST || err == MIG_SERVER_DIED) - { - /* On the first use of the socket server during the operation, - allow for the old server port dying. */ - server = _hurd_socket_server (PF_INET, 1); - if (server == MACH_PORT_NULL) - goto out; - err = __pfinet_siocgifconf (server, -1, &ifc.ifc_buf, &len); - } - if (err) - goto out; - - ifc.ifc_len = len; - nifs = len / sizeof (struct ifreq); - } - - idx = malloc ((nifs + 1) * sizeof (struct if_nameindex)); - if (idx == NULL) - { - err = ENOBUFS; - goto out; - } - - for (i = 0; i < nifs; ++i) - { - struct ifreq *ifr = &ifc.ifc_req[i]; - idx[i].if_name = __strdup (ifr->ifr_name); - if (idx[i].if_name == NULL - || __ioctl (fd, SIOCGIFINDEX, ifr) < 0) - { - unsigned int j; - err = errno; - - for (j = 0; j < i; ++j) - free (idx[j].if_name); - free (idx); - idx = NULL; - - if (err == EINVAL) - err = ENOSYS; - else if (err == ENOMEM) - err = ENOBUFS; - goto out; - } - idx[i].if_index = ifr->ifr_ifindex; - } - - idx[i].if_index = 0; - idx[i].if_name = NULL; - - out: - __close (fd); - if (data != ifc.ifc_buf) - __vm_deallocate (__mach_task_self (), (vm_address_t) ifc.ifc_buf, - ifc.ifc_len); - __set_errno (err); - return idx; -} -weak_alias (__if_nameindex, if_nameindex) -libc_hidden_weak (if_nameindex) - -/* Store the name of the interface corresponding to index IFINDEX in - IFNAME (which has space for at least IFNAMSIZ characters). Return - IFNAME, or NULL on error. */ -char * -__if_indextoname (unsigned int ifindex, char *ifname) -{ - struct ifreq ifr; - int fd = __opensock (); - - if (fd < 0) - return NULL; - - ifr.ifr_ifindex = ifindex; - if (__ioctl (fd, SIOCGIFNAME, &ifr) < 0) - { - int saved_errno = errno; - __close (fd); - if (saved_errno == EINVAL || saved_errno == ENOTTY) - __set_errno (ENOSYS); - else if (saved_errno == ENODEV) - __set_errno (ENXIO); - return NULL; - } - __close (fd); - return strncpy (ifname, ifr.ifr_name, IFNAMSIZ); -} -weak_alias (__if_indextoname, if_indextoname) -libc_hidden_weak (if_indextoname) - -#if 0 -void -internal_function -__protocol_available (int *have_inet, int *have_inet6) -{ - *have_inet = _hurd_socket_server (PF_INET, 0) != MACH_PORT_NULL; - *have_inet6 = _hurd_socket_server (PF_INET6, 0) != MACH_PORT_NULL; -} -#endif |