1/* Copyright (C) 1996-2019 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 <shadow.h>
21#include <stdio.h>
22
23#define flockfile(s) _IO_flockfile (s)
24#define funlockfile(s) _IO_funlockfile (s)
25
26/* Define a line parsing function using the common code
27 used in the nss_files module. */
28
29#define STRUCTURE spwd
30#define ENTNAME spent
31#define EXTERN_PARSER 1
32struct spent_data {};
33
34#include <nss/nss_files/files-parse.c>
35
36
37/* Read one shadow entry from the given stream. */
38int
39__fgetspent_r (FILE *stream, struct spwd *resbuf, char *buffer, size_t buflen,
40 struct spwd **result)
41{
42 char *p;
43
44 flockfile (stream);
45 do
46 {
47 buffer[buflen - 1] = '\xff';
48 p = fgets_unlocked (buffer, buflen, stream);
49 if (p == NULL && feof_unlocked (stream))
50 {
51 funlockfile (stream);
52 *result = NULL;
53 __set_errno (ENOENT);
54 return errno;
55 }
56 if (p == NULL || buffer[buflen - 1] != '\xff')
57 {
58 funlockfile (stream);
59 *result = NULL;
60 __set_errno (ERANGE);
61 return errno;
62 }
63
64 /* Skip leading blanks. */
65 while (isspace (*p))
66 ++p;
67 } while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */
68 /* Parse the line. If it is invalid, loop to
69 get the next line of the file to parse. */
70 ! parse_line (buffer, (void *) resbuf, NULL, 0, &errno));
71
72 funlockfile (stream);
73
74 *result = resbuf;
75 return 0;
76}
77weak_alias (__fgetspent_r, fgetspent_r)
78