]>
Commit | Line | Data |
---|---|---|
04277e02 | 1 | /* Copyright (C) 1991-2019 Free Software Foundation, Inc. |
2303f5fd | 2 | This file is part of the GNU C Library. |
267ca16a | 3 | |
2303f5fd | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
267ca16a | 8 | |
2303f5fd UD |
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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
267ca16a | 13 | |
41bdb6e2 | 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/>. */ | |
267ca16a UD |
17 | |
18 | #include <ctype.h> | |
d71b808a | 19 | #include <errno.h> |
267ca16a UD |
20 | #include <stdio.h> |
21 | #include <pwd.h> | |
22 | ||
3ce1f295 UD |
23 | #define flockfile(s) _IO_flockfile (s) |
24 | #define funlockfile(s) _IO_funlockfile (s) | |
50304ef0 | 25 | |
267ca16a UD |
26 | /* Define a line parsing function using the common code |
27 | used in the nss_files module. */ | |
28 | ||
29 | #define STRUCTURE passwd | |
30 | #define ENTNAME pwent | |
31 | struct pwent_data {}; | |
32 | ||
d71b808a | 33 | #include <nss/nss_files/files-parse.c> |
267ca16a UD |
34 | LINE_PARSER |
35 | (, | |
36 | STRING_FIELD (result->pw_name, ISCOLON, 0); | |
2303f5fd UD |
37 | if (line[0] == '\0' |
38 | && (result->pw_name[0] == '+' || result->pw_name[0] == '-')) | |
6ed0492f | 39 | { |
2303f5fd UD |
40 | /* This a special case. We allow lines containing only a `+' sign |
41 | since this is used for nss_compat. All other services will | |
42 | reject this entry later. Initialize all other fields now. */ | |
43 | result->pw_passwd = NULL; | |
44 | result->pw_uid = 0; | |
45 | result->pw_gid = 0; | |
46 | result->pw_gecos = NULL; | |
47 | result->pw_dir = NULL; | |
48 | result->pw_shell = NULL; | |
6ed0492f UD |
49 | } |
50 | else | |
51 | { | |
2303f5fd UD |
52 | STRING_FIELD (result->pw_passwd, ISCOLON, 0); |
53 | if (result->pw_name[0] == '+' || result->pw_name[0] == '-') | |
54 | { | |
55 | INT_FIELD_MAYBE_NULL (result->pw_uid, ISCOLON, 0, 10, , 0) | |
56 | INT_FIELD_MAYBE_NULL (result->pw_gid, ISCOLON, 0, 10, , 0) | |
57 | } | |
58 | else | |
59 | { | |
60 | INT_FIELD (result->pw_uid, ISCOLON, 0, 10,) | |
61 | INT_FIELD (result->pw_gid, ISCOLON, 0, 10,) | |
62 | } | |
63 | STRING_FIELD (result->pw_gecos, ISCOLON, 0); | |
64 | STRING_FIELD (result->pw_dir, ISCOLON, 0); | |
65 | result->pw_shell = line; | |
6ed0492f | 66 | } |
267ca16a UD |
67 | ) |
68 | ||
69 | ||
70 | /* Read one entry from the given stream. */ | |
ba1ffaa1 UD |
71 | int |
72 | __fgetpwent_r (FILE *stream, struct passwd *resbuf, char *buffer, | |
73 | size_t buflen, struct passwd **result) | |
267ca16a UD |
74 | { |
75 | char *p; | |
76 | ||
50304ef0 | 77 | flockfile (stream); |
267ca16a UD |
78 | do |
79 | { | |
31f7410f | 80 | buffer[buflen - 1] = '\xff'; |
50304ef0 UD |
81 | p = fgets_unlocked (buffer, buflen, stream); |
82 | if (p == NULL && feof_unlocked (stream)) | |
ba1ffaa1 | 83 | { |
50304ef0 | 84 | funlockfile (stream); |
ba1ffaa1 | 85 | *result = NULL; |
26cee9a4 | 86 | __set_errno (ENOENT); |
ba1ffaa1 UD |
87 | return errno; |
88 | } | |
31f7410f | 89 | if (p == NULL || buffer[buflen - 1] != '\xff') |
6591c335 | 90 | { |
50304ef0 | 91 | funlockfile (stream); |
6591c335 | 92 | *result = NULL; |
e1c6ee83 UD |
93 | __set_errno (ERANGE); |
94 | return errno; | |
6591c335 | 95 | } |
267ca16a UD |
96 | |
97 | /* Skip leading blanks. */ | |
98 | while (isspace (*p)) | |
99 | ++p; | |
a04549c1 | 100 | } while (*p == '\0' || *p == '#' /* Ignore empty and comment lines. */ |
267ca16a UD |
101 | /* Parse the line. If it is invalid, loop to |
102 | get the next line of the file to parse. */ | |
a04549c1 | 103 | || ! parse_line (p, resbuf, (void *) buffer, buflen, &errno)); |
267ca16a | 104 | |
50304ef0 UD |
105 | funlockfile (stream); |
106 | ||
ba1ffaa1 UD |
107 | *result = resbuf; |
108 | return 0; | |
267ca16a UD |
109 | } |
110 | weak_alias (__fgetpwent_r, fgetpwent_r) |