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3ce1f295 | 1 | /* Copyright (C) 1991, 1996-1999, 2011 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 AJ |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, write to the Free | |
16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
17 | 02111-1307 USA. */ | |
267ca16a UD |
18 | |
19 | #include <ctype.h> | |
d71b808a | 20 | #include <errno.h> |
267ca16a UD |
21 | #include <stdio.h> |
22 | #include <pwd.h> | |
23 | ||
3ce1f295 UD |
24 | #define flockfile(s) _IO_flockfile (s) |
25 | #define funlockfile(s) _IO_funlockfile (s) | |
50304ef0 | 26 | |
267ca16a UD |
27 | /* Define a line parsing function using the common code |
28 | used in the nss_files module. */ | |
29 | ||
30 | #define STRUCTURE passwd | |
31 | #define ENTNAME pwent | |
32 | struct pwent_data {}; | |
33 | ||
d71b808a | 34 | #include <nss/nss_files/files-parse.c> |
267ca16a UD |
35 | LINE_PARSER |
36 | (, | |
37 | STRING_FIELD (result->pw_name, ISCOLON, 0); | |
2303f5fd UD |
38 | if (line[0] == '\0' |
39 | && (result->pw_name[0] == '+' || result->pw_name[0] == '-')) | |
6ed0492f | 40 | { |
2303f5fd UD |
41 | /* This a special case. We allow lines containing only a `+' sign |
42 | since this is used for nss_compat. All other services will | |
43 | reject this entry later. Initialize all other fields now. */ | |
44 | result->pw_passwd = NULL; | |
45 | result->pw_uid = 0; | |
46 | result->pw_gid = 0; | |
47 | result->pw_gecos = NULL; | |
48 | result->pw_dir = NULL; | |
49 | result->pw_shell = NULL; | |
6ed0492f UD |
50 | } |
51 | else | |
52 | { | |
2303f5fd UD |
53 | STRING_FIELD (result->pw_passwd, ISCOLON, 0); |
54 | if (result->pw_name[0] == '+' || result->pw_name[0] == '-') | |
55 | { | |
56 | INT_FIELD_MAYBE_NULL (result->pw_uid, ISCOLON, 0, 10, , 0) | |
57 | INT_FIELD_MAYBE_NULL (result->pw_gid, ISCOLON, 0, 10, , 0) | |
58 | } | |
59 | else | |
60 | { | |
61 | INT_FIELD (result->pw_uid, ISCOLON, 0, 10,) | |
62 | INT_FIELD (result->pw_gid, ISCOLON, 0, 10,) | |
63 | } | |
64 | STRING_FIELD (result->pw_gecos, ISCOLON, 0); | |
65 | STRING_FIELD (result->pw_dir, ISCOLON, 0); | |
66 | result->pw_shell = line; | |
6ed0492f | 67 | } |
267ca16a UD |
68 | ) |
69 | ||
70 | ||
71 | /* Read one entry from the given stream. */ | |
ba1ffaa1 UD |
72 | int |
73 | __fgetpwent_r (FILE *stream, struct passwd *resbuf, char *buffer, | |
74 | size_t buflen, struct passwd **result) | |
267ca16a UD |
75 | { |
76 | char *p; | |
77 | ||
50304ef0 | 78 | flockfile (stream); |
267ca16a UD |
79 | do |
80 | { | |
31f7410f | 81 | buffer[buflen - 1] = '\xff'; |
50304ef0 UD |
82 | p = fgets_unlocked (buffer, buflen, stream); |
83 | if (p == NULL && feof_unlocked (stream)) | |
ba1ffaa1 | 84 | { |
50304ef0 | 85 | funlockfile (stream); |
ba1ffaa1 | 86 | *result = NULL; |
26cee9a4 | 87 | __set_errno (ENOENT); |
ba1ffaa1 UD |
88 | return errno; |
89 | } | |
31f7410f | 90 | if (p == NULL || buffer[buflen - 1] != '\xff') |
6591c335 | 91 | { |
50304ef0 | 92 | funlockfile (stream); |
6591c335 | 93 | *result = NULL; |
e1c6ee83 UD |
94 | __set_errno (ERANGE); |
95 | return errno; | |
6591c335 | 96 | } |
267ca16a UD |
97 | |
98 | /* Skip leading blanks. */ | |
99 | while (isspace (*p)) | |
100 | ++p; | |
101 | } while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */ | |
102 | /* Parse the line. If it is invalid, loop to | |
103 | get the next line of the file to parse. */ | |
7ba4fcfc | 104 | ! parse_line (p, resbuf, (void *) buffer, buflen, &errno)); |
267ca16a | 105 | |
50304ef0 UD |
106 | funlockfile (stream); |
107 | ||
ba1ffaa1 UD |
108 | *result = resbuf; |
109 | return 0; | |
267ca16a UD |
110 | } |
111 | weak_alias (__fgetpwent_r, fgetpwent_r) |