about summary refs log tree commit diff
path: root/intl/bindtextdom.c
blob: 7d62aa80f8298ac46e7a65077e15144577f51568 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
/* bindtextdom.c -- implementation of the bindtextdomain(3) function
   Copyright (C) 1995 Free Software Foundation, Inc.

This file is part of the GNU C Library.  Its master source is NOT part of
the C library, however.  The master source lives in /gd/gnu/lib.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB.  If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#if defined STDC_HEADERS || defined _LIBC
# include <stdlib.h>
#else
# ifdef HAVE_MALLOC_H
#  include <malloc.h>
# else
void free ();
# endif
#endif

#if defined HAVE_STRING_H || defined _LIBC
# include <string.h>
#else
# include <strings.h>
#endif

#ifdef _LIBC
# include <libintl.h>
#else
# include "libgettext.h"
#endif
#include "gettext.h"
#include "gettextP.h"

/* @@ end of prolog @@ */

/* Contains the default location of the message catalogs.  */
extern const char _nl_default_dirname[];

/* List with bindings of specific domains.  */
extern struct binding *_nl_domain_bindings;


/* Names for the libintl functions are a problem.  They must not clash
   with existing names and they should follow ANSI C.  But this source
   code is also used in GNU C Library where the names have a __
   prefix.  So we have to make a difference here.  */
#ifdef _LIBC
# define BINDTEXTDOMAIN __bindtextdomain
#else
# define BINDTEXTDOMAIN bindtextdomain__
#endif

/* Specify that the DOMAINNAME message catalog will be found
   in DIRNAME rather than in the system locale data base.  */
char *
BINDTEXTDOMAIN (domainname, dirname)
     const char *domainname;
     const char *dirname;
{
  struct binding *binding;

  /* Some sanity checks.  */
  if (domainname == NULL || domainname[0] == '\0')
    return NULL;

  for (binding = _nl_domain_bindings; binding != NULL; binding = binding->next)
    {
      int compare = strcmp (domainname, binding->domainname);
      if (compare == 0)
	/* We found it!  */
	break;
      if (compare < 0)
	{
	  /* It is not in the list.  */
	  binding = NULL;
	  break;
	}
    }

  if (dirname == NULL)
    /* The current binding has be to returned.  */
    return binding == NULL ? (char *) _nl_default_dirname : binding->dirname;

  if (binding != NULL)
    {
      /* The domain is already bound.  Replace the old binding.  */
      char *new_dirname;

      if (strcmp (dirname, _nl_default_dirname) == 0)
	new_dirname = (char *) _nl_default_dirname;
      else
	{
	  size_t len = strlen (dirname) + 1;
	  new_dirname = (char *) malloc (len);
	  if (new_dirname == NULL)
	    return NULL;

	  memcpy (new_dirname, dirname, len);
	}

      if (strcmp (binding->dirname, _nl_default_dirname) != 0)
        free (binding->dirname);

      binding->dirname = new_dirname;
    }
  else
    {
      /* We have to create a new binding.  */
      size_t len;
      struct binding *new_binding =
	(struct binding *) malloc (sizeof (*new_binding));

      if (new_binding == NULL)
	return NULL;

      len = strlen (domainname) + 1;
      new_binding->domainname = (char *) malloc (len);
      if (new_binding->domainname == NULL)
	  return NULL;
      memcpy (new_binding->domainname, domainname, len);

      if (strcmp (dirname, _nl_default_dirname) == 0)
	new_binding->dirname = (char *) _nl_default_dirname;
      else
	{
	  len = strlen (dirname) + 1;
	  new_binding->dirname = (char *) malloc (len);
	  if (new_binding->dirname == NULL)
	    return NULL;
	  memcpy (new_binding->dirname, dirname, len);
	}

      /* Now enqueue it.  */
      if (_nl_domain_bindings == NULL
	  || strcmp (domainname, _nl_domain_bindings->domainname) < 0)
	{
	  new_binding->next = _nl_domain_bindings;
	  _nl_domain_bindings = new_binding;
	}
      else
	{
	  binding = _nl_domain_bindings;
	  while (binding->next != NULL
		 && strcmp (domainname, binding->next->domainname) > 0)
	    binding = binding->next;

	  new_binding->next = binding->next;
	  binding->next = new_binding;
	}

      binding = new_binding;
    }

  return binding->dirname;
}

#ifdef _LIBC
/* Alias for function name in GNU C Library.  */
weak_alias (__bindtextdomain, bindtextdomain);
#endif