1 /* Copyright (C) 1997-2016 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
22 #include <netinet/in.h>
28 /* Declare a parser for Hesiod protocol entries. Although the format
29 of the entries is identical to those in /etc/protocols, here is no
30 predefined parser for us to use. */
32 #define ENTNAME protoent
34 struct protoent_data
{};
36 #define TRAILING_LIST_MEMBER p_aliases
37 #define TRAILING_LIST_SEPARATOR_P isspace
38 #include <nss/nss_files/files-parse.c>
41 STRING_FIELD (result
->p_name
, isspace
, 1);
42 INT_FIELD (result
->p_proto
, isspace
, 1, 10,);
46 _nss_hesiod_setprotoent (int stayopen
)
48 return NSS_STATUS_SUCCESS
;
52 _nss_hesiod_endprotoent (void)
54 return NSS_STATUS_SUCCESS
;
57 static enum nss_status
58 lookup (const char *name
, const char *type
, struct protoent
*proto
,
59 char *buffer
, size_t buflen
, int *errnop
)
61 struct parser_data
*data
= (void *) buffer
;
69 if (hesiod_init (&context
) < 0)
70 return NSS_STATUS_UNAVAIL
;
72 list
= hesiod_resolve (context
, name
, type
);
78 return err
== ENOENT
? NSS_STATUS_NOTFOUND
: NSS_STATUS_UNAVAIL
;
81 linebuflen
= buffer
+ buflen
- data
->linebuffer
;
87 size_t len
= strlen (*item
) + 1;
91 hesiod_free_list (context
, list
);
94 return NSS_STATUS_TRYAGAIN
;
97 memcpy (data
->linebuffer
, *item
, len
);
99 parse_res
= parse_line (buffer
, proto
, data
, buflen
, errnop
);
102 hesiod_free_list (context
, list
);
103 hesiod_end (context
);
104 return NSS_STATUS_TRYAGAIN
;
112 while (*item
!= NULL
&& !found
);
114 hesiod_free_list (context
, list
);
115 hesiod_end (context
);
119 __set_errno (olderr
);
120 return NSS_STATUS_NOTFOUND
;
123 return NSS_STATUS_SUCCESS
;
127 _nss_hesiod_getprotobyname_r (const char *name
, struct protoent
*proto
,
128 char *buffer
, size_t buflen
, int *errnop
)
130 return lookup (name
, "protocol", proto
, buffer
, buflen
, errnop
);
134 _nss_hesiod_getprotobynumber_r (const int protocol
, struct protoent
*proto
,
135 char *buffer
, size_t buflen
, int *errnop
)
139 snprintf (protostr
, sizeof protostr
, "%d", protocol
);
141 return lookup (protostr
, "protonum", proto
, buffer
, buflen
, errnop
);