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1 | /* Copyright (C) 1991-2019 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 | <https://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #include <errno.h> | |
19 | #include <nss.h> | |
20 | #include <stdio.h> | |
21 | #include <shadow.h> | |
22 | ||
23 | #define flockfile(s) _IO_flockfile (s) | |
24 | #define funlockfile(s) _IO_funlockfile (s) | |
25 | ||
26 | #define _S(x) x ? x : "" | |
27 | ||
28 | ||
29 | /* Write an entry to the given stream. | |
30 | This must know the format of the password file. */ | |
31 | int | |
32 | putspent (const struct spwd *p, FILE *stream) | |
33 | { | |
34 | int errors = 0; | |
35 | ||
36 | if (p->sp_namp == NULL || !__nss_valid_field (p->sp_namp) | |
37 | || !__nss_valid_field (p->sp_pwdp)) | |
38 | { | |
39 | __set_errno (EINVAL); | |
40 | return -1; | |
41 | } | |
42 | ||
43 | flockfile (stream); | |
44 | ||
45 | if (fprintf (stream, "%s:%s:", p->sp_namp, _S (p->sp_pwdp)) < 0) | |
46 | ++errors; | |
47 | ||
48 | if ((p->sp_lstchg != (long int) -1 | |
49 | && fprintf (stream, "%ld:", p->sp_lstchg) < 0) | |
50 | || (p->sp_lstchg == (long int) -1 | |
51 | && putc_unlocked (':', stream) == EOF)) | |
52 | ++errors; | |
53 | ||
54 | if ((p->sp_min != (long int) -1 | |
55 | && fprintf (stream, "%ld:", p->sp_min) < 0) | |
56 | || (p->sp_min == (long int) -1 | |
57 | && putc_unlocked (':', stream) == EOF)) | |
58 | ++errors; | |
59 | ||
60 | if ((p->sp_max != (long int) -1 | |
61 | && fprintf (stream, "%ld:", p->sp_max) < 0) | |
62 | || (p->sp_max == (long int) -1 | |
63 | && putc_unlocked (':', stream) == EOF)) | |
64 | ++errors; | |
65 | ||
66 | if ((p->sp_warn != (long int) -1 | |
67 | && fprintf (stream, "%ld:", p->sp_warn) < 0) | |
68 | || (p->sp_warn == (long int) -1 | |
69 | && putc_unlocked (':', stream) == EOF)) | |
70 | ++errors; | |
71 | ||
72 | if ((p->sp_inact != (long int) -1 | |
73 | && fprintf (stream, "%ld:", p->sp_inact) < 0) | |
74 | || (p->sp_inact == (long int) -1 | |
75 | && putc_unlocked (':', stream) == EOF)) | |
76 | ++errors; | |
77 | ||
78 | if ((p->sp_expire != (long int) -1 | |
79 | && fprintf (stream, "%ld:", p->sp_expire) < 0) | |
80 | || (p->sp_expire == (long int) -1 | |
81 | && putc_unlocked (':', stream) == EOF)) | |
82 | ++errors; | |
83 | ||
84 | if (p->sp_flag != ~0ul | |
85 | && fprintf (stream, "%ld", p->sp_flag) < 0) | |
86 | ++errors; | |
87 | ||
88 | if (putc_unlocked ('\n', stream) == EOF) | |
89 | ++errors; | |
90 | ||
91 | funlockfile (stream); | |
92 | ||
93 | return errors ? -1 : 0; | |
94 | } |