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/* Services 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 <netdb.h>
#include <nss.h>
#define ENTNAME servent
#define DATABASE "services"
struct servent_data {};
#define TRAILING_LIST_MEMBER s_aliases
#define TRAILING_LIST_SEPARATOR_P isspace
#include "files-parse.c"
#define ISSLASH(c) ((c) == '/')
LINE_PARSER
("#",
STRING_FIELD (result->s_name, isspace, 1);
INT_FIELD (result->s_port, ISSLASH, 10, 0, htons);
STRING_FIELD (result->s_proto, isspace, 1);
)
#include GENERIC
DB_LOOKUP (servbyname, ':',
strlen (name) + 2 + (proto == NULL ? 0 : strlen (proto)),
("%s/%s", name, proto ?: ""),
{
/* Must match both protocol (if specified) and name. */
if (proto != NULL && strcmp (result->s_proto, proto))
/* A continue statement here breaks nss_db, because it
bypasses advancing to the next db entry, and it
doesn't make nss_files any more efficient. */;
else
LOOKUP_NAME (s_name, s_aliases)
},
const char *name, const char *proto)
DB_LOOKUP (servbyport, '=', 21 + (proto ? strlen (proto) : 0),
("%zd/%s", (ssize_t) ntohs (port), proto ?: ""),
{
/* Must match both port and protocol. */
if (result->s_port == port
&& (proto == NULL
|| strcmp (result->s_proto, proto) == 0))
break;
}, int port, const char *proto)
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