mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-29 05:51:10 +00:00
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
/* Networks file parser in nss_files module.
|
|
Copyright (C) 1996-2023 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 <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
#include <netdb.h>
|
|
#include <stdint.h>
|
|
#include <nss.h>
|
|
|
|
#define ENTNAME netent
|
|
#define DATABASE "networks"
|
|
#define NEED_H_ERRNO
|
|
|
|
struct netent_data {};
|
|
|
|
#define TRAILING_LIST_MEMBER n_aliases
|
|
#define TRAILING_LIST_SEPARATOR_P isspace
|
|
#include "files-parse.c"
|
|
LINE_PARSER
|
|
("#",
|
|
{
|
|
char *addr;
|
|
char *cp;
|
|
int n = 1;
|
|
|
|
STRING_FIELD (result->n_name, isspace, 1);
|
|
|
|
STRING_FIELD (addr, isspace, 1);
|
|
/* 'inet_network' does not add zeroes at the end if the network number
|
|
does not four byte values. We add them ourselves if necessary. */
|
|
cp = strchr (addr, '.');
|
|
if (cp != NULL)
|
|
{
|
|
++n;
|
|
cp = strchr (cp + 1, '.');
|
|
if (cp != NULL)
|
|
{
|
|
++n;
|
|
cp = strchr (cp + 1, '.');
|
|
if (cp != NULL)
|
|
++n;
|
|
}
|
|
}
|
|
if (n < 4)
|
|
{
|
|
char *newp = (char *) alloca (strlen (addr) + (4 - n) * 2 + 1);
|
|
cp = stpcpy (newp, addr);
|
|
do
|
|
{
|
|
*cp++ = '.';
|
|
*cp++ = '0';
|
|
}
|
|
while (++n < 4);
|
|
*cp = '\0';
|
|
addr = newp;
|
|
}
|
|
result->n_net = __inet_network (addr);
|
|
result->n_addrtype = AF_INET;
|
|
|
|
})
|
|
|
|
#include "files-XXX.c"
|
|
|
|
DB_LOOKUP (netbyname, ,,,
|
|
LOOKUP_NAME_CASE (n_name, n_aliases),
|
|
const char *name)
|
|
|
|
DB_LOOKUP (netbyaddr, ,,,
|
|
{
|
|
if ((type == AF_UNSPEC || result->n_addrtype == type)
|
|
&& result->n_net == net)
|
|
/* Bingo! */
|
|
break;
|
|
}, uint32_t net, int type)
|