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e1c6ee83 | 1 | /* Copyright (C) 1991, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. |
2303f5fd | 2 | This file is part of the GNU C Library. |
267ca16a | 3 | |
2303f5fd UD |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | 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 | |
12 | Library General Public License for more details. | |
267ca16a | 13 | |
2303f5fd UD |
14 | You should have received a copy of the GNU Library General Public |
15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 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 | ||
50304ef0 UD |
24 | #ifdef USE_IN_LIBIO |
25 | # define flockfile(s) _IO_flockfile (s) | |
7ce241a0 | 26 | # define funlockfile(s) _IO_funlockfile (s) |
50304ef0 UD |
27 | #endif |
28 | ||
267ca16a UD |
29 | /* Define a line parsing function using the common code |
30 | used in the nss_files module. */ | |
31 | ||
32 | #define STRUCTURE passwd | |
33 | #define ENTNAME pwent | |
34 | struct pwent_data {}; | |
35 | ||
d71b808a | 36 | #include <nss/nss_files/files-parse.c> |
267ca16a UD |
37 | LINE_PARSER |
38 | (, | |
39 | STRING_FIELD (result->pw_name, ISCOLON, 0); | |
2303f5fd UD |
40 | if (line[0] == '\0' |
41 | && (result->pw_name[0] == '+' || result->pw_name[0] == '-')) | |
6ed0492f | 42 | { |
2303f5fd UD |
43 | /* This a special case. We allow lines containing only a `+' sign |
44 | since this is used for nss_compat. All other services will | |
45 | reject this entry later. Initialize all other fields now. */ | |
46 | result->pw_passwd = NULL; | |
47 | result->pw_uid = 0; | |
48 | result->pw_gid = 0; | |
49 | result->pw_gecos = NULL; | |
50 | result->pw_dir = NULL; | |
51 | result->pw_shell = NULL; | |
6ed0492f UD |
52 | } |
53 | else | |
54 | { | |
2303f5fd UD |
55 | STRING_FIELD (result->pw_passwd, ISCOLON, 0); |
56 | if (result->pw_name[0] == '+' || result->pw_name[0] == '-') | |
57 | { | |
58 | INT_FIELD_MAYBE_NULL (result->pw_uid, ISCOLON, 0, 10, , 0) | |
59 | INT_FIELD_MAYBE_NULL (result->pw_gid, ISCOLON, 0, 10, , 0) | |
60 | } | |
61 | else | |
62 | { | |
63 | INT_FIELD (result->pw_uid, ISCOLON, 0, 10,) | |
64 | INT_FIELD (result->pw_gid, ISCOLON, 0, 10,) | |
65 | } | |
66 | STRING_FIELD (result->pw_gecos, ISCOLON, 0); | |
67 | STRING_FIELD (result->pw_dir, ISCOLON, 0); | |
68 | result->pw_shell = line; | |
6ed0492f | 69 | } |
267ca16a UD |
70 | ) |
71 | ||
72 | ||
73 | /* Read one entry from the given stream. */ | |
ba1ffaa1 UD |
74 | int |
75 | __fgetpwent_r (FILE *stream, struct passwd *resbuf, char *buffer, | |
76 | size_t buflen, struct passwd **result) | |
267ca16a UD |
77 | { |
78 | char *p; | |
79 | ||
50304ef0 | 80 | flockfile (stream); |
267ca16a UD |
81 | do |
82 | { | |
31f7410f | 83 | buffer[buflen - 1] = '\xff'; |
50304ef0 UD |
84 | p = fgets_unlocked (buffer, buflen, stream); |
85 | if (p == NULL && feof_unlocked (stream)) | |
ba1ffaa1 | 86 | { |
50304ef0 | 87 | funlockfile (stream); |
ba1ffaa1 UD |
88 | *result = NULL; |
89 | return errno; | |
90 | } | |
31f7410f | 91 | if (p == NULL || buffer[buflen - 1] != '\xff') |
6591c335 | 92 | { |
50304ef0 | 93 | funlockfile (stream); |
6591c335 | 94 | *result = NULL; |
e1c6ee83 UD |
95 | __set_errno (ERANGE); |
96 | return errno; | |
6591c335 | 97 | } |
267ca16a UD |
98 | |
99 | /* Skip leading blanks. */ | |
100 | while (isspace (*p)) | |
101 | ++p; | |
102 | } while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */ | |
103 | /* Parse the line. If it is invalid, loop to | |
104 | get the next line of the file to parse. */ | |
7ba4fcfc | 105 | ! parse_line (p, resbuf, (void *) buffer, buflen, &errno)); |
267ca16a | 106 | |
50304ef0 UD |
107 | funlockfile (stream); |
108 | ||
ba1ffaa1 UD |
109 | *result = resbuf; |
110 | return 0; | |
267ca16a UD |
111 | } |
112 | weak_alias (__fgetpwent_r, fgetpwent_r) |