]>
Commit | Line | Data |
---|---|---|
faaa6f62 | 1 | /* Copyright (C) 1996-2000, 2001, 2002 Free Software Foundation, Inc. |
2c6fe0bd | 2 | This file is part of the GNU C Library. |
ed3b44d3 | 3 | Contributed by Ulrich Drepper, <drepper@gnu.org>. |
a641835a | 4 | |
2c6fe0bd | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
a641835a | 9 | |
2c6fe0bd UD |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
a641835a | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
a641835a RM |
18 | |
19 | #include <alloca.h> | |
2c6fe0bd | 20 | #include <errno.h> |
b6aa34eb | 21 | #include <locale.h> |
a641835a RM |
22 | #include <nl_types.h> |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | #include <unistd.h> | |
26 | #include <sys/mman.h> | |
27 | ||
28 | #include "catgetsinfo.h" | |
29 | ||
30 | ||
31 | /* Open the catalog and return a descriptor for the catalog. */ | |
32 | nl_catd | |
33 | catopen (const char *cat_name, int flag) | |
34 | { | |
35 | __nl_catd result; | |
390500b1 UD |
36 | const char *env_var = NULL; |
37 | const char *nlspath = NULL; | |
a641835a RM |
38 | |
39 | if (strchr (cat_name, '/') == NULL) | |
40 | { | |
41 | if (flag == NL_CAT_LOCALE) | |
b6aa34eb UD |
42 | /* Use the current locale setting for LC_MESSAGES. */ |
43 | env_var = setlocale (LC_MESSAGES, NULL); | |
44 | else | |
45 | /* Use the LANG environment variable. */ | |
46 | env_var = getenv ("LANG"); | |
a641835a | 47 | |
63336471 UD |
48 | if (env_var == NULL || *env_var == '\0' |
49 | || (__libc_enable_secure && strchr (env_var, '/') != NULL)) | |
390500b1 UD |
50 | env_var = "C"; |
51 | ||
74955460 | 52 | nlspath = getenv ("NLSPATH"); |
0d8733c4 UD |
53 | if (nlspath != NULL && *nlspath != '\0') |
54 | { | |
55 | /* Append the system dependent directory. */ | |
39e16978 | 56 | size_t len = strlen (nlspath) + 1 + sizeof NLSPATH; |
0d8733c4 UD |
57 | char *tmp = alloca (len); |
58 | ||
59 | __stpcpy (__stpcpy (__stpcpy (tmp, nlspath), ":"), NLSPATH); | |
60 | nlspath = tmp; | |
61 | } | |
62 | else | |
ca130fe4 | 63 | nlspath = NLSPATH; |
a641835a | 64 | } |
390500b1 | 65 | |
ca130fe4 | 66 | result = (__nl_catd) malloc (sizeof (*result)); |
390500b1 UD |
67 | if (result == NULL) |
68 | /* We cannot get enough memory. */ | |
69 | return (nl_catd) -1; | |
70 | ||
ca130fe4 | 71 | if (__open_catalog (cat_name, nlspath, env_var, result) != 0) |
faaa6f62 UD |
72 | { |
73 | /* Couldn't open the file. */ | |
74 | free ((void *) result); | |
75 | return (nl_catd) -1; | |
76 | } | |
39e16978 | 77 | |
a641835a RM |
78 | return (nl_catd) result; |
79 | } | |
80 | ||
81 | ||
82 | /* Return message from message catalog. */ | |
83 | char * | |
84 | catgets (nl_catd catalog_desc, int set, int message, const char *string) | |
85 | { | |
86 | __nl_catd catalog; | |
87 | size_t idx; | |
88 | size_t cnt; | |
89 | ||
90 | /* Be generous if catalog which failed to be open is used. */ | |
91 | if (catalog_desc == (nl_catd) -1 || ++set <= 0 || message < 0) | |
92 | return (char *) string; | |
93 | ||
94 | catalog = (__nl_catd) catalog_desc; | |
95 | ||
a641835a RM |
96 | idx = ((set * message) % catalog->plane_size) * 3; |
97 | cnt = 0; | |
98 | do | |
99 | { | |
100 | if (catalog->name_ptr[idx + 0] == (u_int32_t) set | |
101 | && catalog->name_ptr[idx + 1] == (u_int32_t) message) | |
102 | return (char *) &catalog->strings[catalog->name_ptr[idx + 2]]; | |
103 | ||
104 | idx += catalog->plane_size * 3; | |
105 | } | |
106 | while (++cnt < catalog->plane_depth); | |
107 | ||
2c6fe0bd | 108 | __set_errno (ENOMSG); |
a641835a RM |
109 | return (char *) string; |
110 | } | |
111 | ||
112 | ||
113 | /* Return resources used for loaded message catalog. */ | |
114 | int | |
115 | catclose (nl_catd catalog_desc) | |
116 | { | |
117 | __nl_catd catalog; | |
118 | ||
30d13751 UD |
119 | /* Be generous if catalog which failed to be open is used. */ |
120 | if (catalog_desc == (nl_catd) -1) | |
121 | { | |
122 | __set_errno (EBADF); | |
123 | return -1; | |
124 | } | |
125 | ||
a641835a RM |
126 | catalog = (__nl_catd) catalog_desc; |
127 | ||
7cabd57c | 128 | #ifdef _POSIX_MAPPED_FILES |
6d52618b | 129 | if (catalog->status == mmapped) |
40a55d20 | 130 | __munmap ((void *) catalog->file_ptr, catalog->file_size); |
7cabd57c UD |
131 | else |
132 | #endif /* _POSIX_MAPPED_FILES */ | |
133 | if (catalog->status == malloced) | |
134 | free ((void *) catalog->file_ptr); | |
ca130fe4 | 135 | else |
7cabd57c UD |
136 | { |
137 | __set_errno (EBADF); | |
138 | return -1; | |
139 | } | |
a641835a | 140 | |
a641835a RM |
141 | free ((void *) catalog); |
142 | ||
143 | return 0; | |
144 | } |