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04277e02 | 1 | /* Copyright (C) 2009-2019 Free Software Foundation, Inc. |
829fea46 UD |
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 | |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
829fea46 | 17 | |
676599b3 | 18 | #include <errno.h> |
829fea46 UD |
19 | #include <stdbool.h> |
20 | #include <stdio.h> | |
21 | #include <gshadow.h> | |
676599b3 | 22 | #include <nss.h> |
829fea46 UD |
23 | |
24 | #define _S(x) x ? x : "" | |
25 | ||
26 | ||
27 | /* Write an entry to the given stream. | |
28 | This must know the format of the group file. */ | |
29 | int | |
30 | putsgent (const struct sgrp *g, FILE *stream) | |
31 | { | |
32 | int errors = 0; | |
33 | ||
676599b3 FW |
34 | if (g->sg_namp == NULL || !__nss_valid_field (g->sg_namp) |
35 | || !__nss_valid_field (g->sg_passwd) | |
36 | || !__nss_valid_list_field (g->sg_adm) | |
37 | || !__nss_valid_list_field (g->sg_mem)) | |
38 | { | |
39 | __set_errno (EINVAL); | |
40 | return -1; | |
41 | } | |
42 | ||
829fea46 UD |
43 | _IO_flockfile (stream); |
44 | ||
45 | if (fprintf (stream, "%s:%s:", g->sg_namp, _S (g->sg_passwd)) < 0) | |
46 | ++errors; | |
47 | ||
48 | bool first = true; | |
49 | char **sp = g->sg_adm; | |
50 | if (sp != NULL) | |
51 | while (*sp != NULL) | |
52 | { | |
53 | if (fprintf (stream, "%s%s", first ? "" : ",", *sp++) < 0) | |
54 | { | |
55 | ++errors; | |
56 | break; | |
57 | } | |
58 | first = false; | |
59 | } | |
60 | if (putc_unlocked (':', stream) == EOF) | |
61 | ++errors; | |
62 | ||
63 | first = true; | |
64 | sp = g->sg_mem; | |
65 | if (sp != NULL) | |
66 | while (*sp != NULL) | |
67 | { | |
68 | if (fprintf (stream, "%s%s", first ? "" : ",", *sp++) < 0) | |
69 | { | |
70 | ++errors; | |
71 | break; | |
72 | } | |
73 | first = false; | |
74 | } | |
75 | if (putc_unlocked ('\n', stream) == EOF) | |
76 | ++errors; | |
77 | ||
78 | _IO_funlockfile (stream); | |
79 | ||
80 | return errors ? -1 : 0; | |
81 | } |