1/* Copyright (C) 2009-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18#include <ctype.h>
19#include <errno.h>
20#include <gshadow.h>
21#include <stdio.h>
22
23/* Define a line parsing function using the common code
24 used in the nss_files module. */
25
26#define STRUCTURE sgrp
27#define ENTNAME sgent
28#define EXTERN_PARSER 1
29struct sgent_data {};
30
31#include <nss/nss_files/files-parse.c>
32
33
34/* Read one shadow entry from the given stream. */
35int
36__fgetsgent_r (FILE *stream, struct sgrp *resbuf, char *buffer, size_t buflen,
37 struct sgrp **result)
38{
39 char *p;
40
41 _IO_flockfile (stream);
42 do
43 {
44 buffer[buflen - 1] = '\xff';
45 p = fgets_unlocked (buffer, buflen, stream);
46 if (p == NULL && feof_unlocked (stream))
47 {
48 _IO_funlockfile (stream);
49 *result = NULL;
50 __set_errno (ENOENT);
51 return errno;
52 }
53 if (p == NULL || buffer[buflen - 1] != '\xff')
54 {
55 _IO_funlockfile (stream);
56 *result = NULL;
57 __set_errno (ERANGE);
58 return errno;
59 }
60
61 /* Skip leading blanks. */
62 while (isspace (*p))
63 ++p;
64 } while (*p == '\0' || *p == '#' /* Ignore empty and comment lines. */
65 /* Parse the line. If it is invalid, loop to
66 get the next line of the file to parse. */
67 || ! parse_line (buffer, (void *) resbuf, (void *) buffer, buflen,
68 &errno));
69
70 _IO_funlockfile (stream);
71
72 *result = resbuf;
73 return 0;
74}
75weak_alias (__fgetsgent_r, fgetsgent_r)
76