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c84142e8 | 1 | /* Implementation of the textdomain(3) function. |
f38931a9 | 2 | Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. |
24906b43 | 3 | |
c84142e8 UD |
4 | This file is part of the GNU C Library. Its master source is NOT part of |
5 | the C library, however. The master source lives in /gd/gnu/lib. | |
24906b43 | 6 | |
c84142e8 UD |
7 | The GNU C Library is free software; you can redistribute it and/or |
8 | modify it under the terms of the GNU Library General Public License as | |
9 | published by the Free Software Foundation; either version 2 of the | |
10 | License, or (at your option) any later version. | |
0393dfd6 | 11 | |
c84142e8 UD |
12 | The GNU C Library is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Library General Public License for more details. | |
24906b43 | 16 | |
c84142e8 UD |
17 | You should have received a copy of the GNU Library General Public |
18 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
19 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
24906b43 RM |
21 | |
22 | #ifdef HAVE_CONFIG_H | |
23 | # include <config.h> | |
24 | #endif | |
25 | ||
26 | #if defined STDC_HEADERS || defined _LIBC | |
27 | # include <stdlib.h> | |
28 | #endif | |
29 | ||
30 | #if defined STDC_HEADERS || defined HAVE_STRING_H || defined _LIBC | |
31 | # include <string.h> | |
32 | #else | |
33 | # include <strings.h> | |
8f2ece69 UD |
34 | # ifndef memcpy |
35 | # define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num) | |
36 | # endif | |
24906b43 RM |
37 | #endif |
38 | ||
39 | #ifdef _LIBC | |
40 | # include <libintl.h> | |
41 | #else | |
42 | # include "libgettext.h" | |
43 | #endif | |
44 | ||
45 | /* @@ end of prolog @@ */ | |
46 | ||
47 | /* Name of the default text domain. */ | |
48 | extern const char _nl_default_default_domain[]; | |
49 | ||
50 | /* Default text domain in which entries for gettext(3) are to be found. */ | |
51 | extern const char *_nl_current_default_domain; | |
52 | ||
53 | ||
54 | /* Names for the libintl functions are a problem. They must not clash | |
55 | with existing names and they should follow ANSI C. But this source | |
56 | code is also used in GNU C Library where the names have a __ | |
57 | prefix. So we have to make a difference here. */ | |
58 | #ifdef _LIBC | |
59 | # define TEXTDOMAIN __textdomain | |
f38931a9 UD |
60 | # ifndef strdup |
61 | # define strdup(str) __strdup (str) | |
62 | # endif | |
24906b43 RM |
63 | #else |
64 | # define TEXTDOMAIN textdomain__ | |
65 | #endif | |
66 | ||
67 | /* Set the current default message catalog to DOMAINNAME. | |
68 | If DOMAINNAME is null, return the current default. | |
69 | If DOMAINNAME is "", reset to the default of "messages". */ | |
70 | char * | |
71 | TEXTDOMAIN (domainname) | |
72 | const char *domainname; | |
73 | { | |
74 | char *old; | |
75 | ||
76 | /* A NULL pointer requests the current setting. */ | |
77 | if (domainname == NULL) | |
78 | return (char *) _nl_current_default_domain; | |
79 | ||
80 | old = (char *) _nl_current_default_domain; | |
81 | ||
82 | /* If domain name is the null string set to default domain "messages". */ | |
83 | if (domainname[0] == '\0' | |
84 | || strcmp (domainname, _nl_default_default_domain) == 0) | |
85 | _nl_current_default_domain = _nl_default_default_domain; | |
86 | else | |
87 | { | |
88 | /* If the following malloc fails `_nl_current_default_domain' | |
89 | will be NULL. This value will be returned and so signals we | |
90 | are out of core. */ | |
40a55d20 UD |
91 | #if defined _LIBC || defined HAVE_STRDUP |
92 | _nl_current_default_domain = strdup (domainname); | |
93 | #else | |
24906b43 RM |
94 | size_t len = strlen (domainname) + 1; |
95 | char *cp = (char *) malloc (len); | |
96 | if (cp != NULL) | |
97 | memcpy (cp, domainname, len); | |
98 | _nl_current_default_domain = cp; | |
40a55d20 | 99 | #endif |
24906b43 RM |
100 | } |
101 | ||
102 | if (old != _nl_default_default_domain) | |
103 | free (old); | |
104 | ||
105 | return (char *) _nl_current_default_domain; | |
106 | } | |
107 | ||
108 | #ifdef _LIBC | |
109 | /* Alias for function name in GNU C Library. */ | |
110 | weak_alias (__textdomain, textdomain); | |
111 | #endif |