1/* Copyright (C) 1991-2020 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 <https://www.gnu.org/licenses/>. */
17
18#include <ctype.h>
19#include <errno.h>
20#include <stdio.h>
21#include <pwd.h>
22
23/* Define a line parsing function using the common code
24 used in the nss_files module. */
25
26#define STRUCTURE passwd
27#define ENTNAME pwent
28struct pwent_data {};
29
30#include <nss/nss_files/files-parse.c>
31LINE_PARSER
32(,
33 STRING_FIELD (result->pw_name, ISCOLON, 0);
34 if (line[0] == '\0'
35 && (result->pw_name[0] == '+' || result->pw_name[0] == '-'))
36 {
37 /* This a special case. We allow lines containing only a `+' sign
38 since this is used for nss_compat. All other services will
39 reject this entry later. Initialize all other fields now. */
40 result->pw_passwd = NULL;
41 result->pw_uid = 0;
42 result->pw_gid = 0;
43 result->pw_gecos = NULL;
44 result->pw_dir = NULL;
45 result->pw_shell = NULL;
46 }
47 else
48 {
49 STRING_FIELD (result->pw_passwd, ISCOLON, 0);
50 if (result->pw_name[0] == '+' || result->pw_name[0] == '-')
51 {
52 INT_FIELD_MAYBE_NULL (result->pw_uid, ISCOLON, 0, 10, , 0)
53 INT_FIELD_MAYBE_NULL (result->pw_gid, ISCOLON, 0, 10, , 0)
54 }
55 else
56 {
57 INT_FIELD (result->pw_uid, ISCOLON, 0, 10,)
58 INT_FIELD (result->pw_gid, ISCOLON, 0, 10,)
59 }
60 STRING_FIELD (result->pw_gecos, ISCOLON, 0);
61 STRING_FIELD (result->pw_dir, ISCOLON, 0);
62 result->pw_shell = line;
63 }
64 )
65
66
67/* Read one entry from the given stream. */
68int
69__fgetpwent_r (FILE *stream, struct passwd *resbuf, char *buffer,
70 size_t buflen, struct passwd **result)
71{
72 int ret = __nss_fgetent_r (stream, resbuf, buffer, buflen, parse_line);
73 if (ret == 0)
74 *result = resbuf;
75 else
76 *result = NULL;
77 return ret;
78}
79weak_alias (__fgetpwent_r, fgetpwent_r)
80