| /* Convert an IPv6 scope ID from text to the internal representation. |
| Copyright (C) 2016-2018 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 <net-internal.h> |
| |
| #include <ctype.h> |
| #include <errno.h> |
| #include <locale.h> |
| #include <net/if.h> |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| |
| /* Parse SOURCE as a scope ID for ADDRESS. Return 0 on success and -1 |
| on error. */ |
| int |
| __inet6_scopeid_pton (const struct in6_addr *address, const char *scope, |
| uint32_t *result) |
| { |
| if (IN6_IS_ADDR_LINKLOCAL (address) |
| || IN6_IS_ADDR_MC_NODELOCAL (address) |
| || IN6_IS_ADDR_MC_LINKLOCAL (address)) |
| { |
| uint32_t number = __if_nametoindex (scope); |
| if (number != 0) |
| { |
| *result = number; |
| return 0; |
| } |
| } |
| |
| if (isdigit_l (scope[0], _nl_C_locobj_ptr)) |
| { |
| char *end; |
| unsigned long long number |
| = ____strtoull_l_internal (scope, &end, /*base */ 10, /* group */ 0, |
| _nl_C_locobj_ptr); |
| if (*end == '\0' && number <= UINT32_MAX) |
| { |
| *result = number; |
| return 0; |
| } |
| } |
| |
| __set_errno (EINVAL); |
| return -1; |
| } |
| |
| libc_hidden_def (__inet6_scopeid_pton) |