glibc/inet/inet6_scopeid_pton.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

65 lines
1.9 KiB
C

/* Convert an IPv6 scope ID from text to the internal representation.
Copyright (C) 2016-2021 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
<https://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)