diff options
Diffstat (limited to 'pcp/intl/bindtextdom.c')
| -rw-r--r-- | pcp/intl/bindtextdom.c | 338 |
1 files changed, 338 insertions, 0 deletions
diff --git a/pcp/intl/bindtextdom.c b/pcp/intl/bindtextdom.c new file mode 100644 index 0000000..2e7ada4 --- /dev/null +++ b/pcp/intl/bindtextdom.c @@ -0,0 +1,338 @@ +/* Implementation of the bindtextdomain(3) function + Copyright (C) 1995-1998, 2000-2003, 2005-2006, 2008 Free Software + Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + This program 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 Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stddef.h> +#include <stdlib.h> +#include <string.h> + +#include "gettextP.h" +#ifdef _LIBC +# include <libintl.h> +#else +# include "libgnuintl.h" +#endif + +/* Handle multi-threaded applications. */ +#ifdef _LIBC +# include <bits/libc-lock.h> +# define gl_rwlock_define __libc_rwlock_define +# define gl_rwlock_wrlock __libc_rwlock_wrlock +# define gl_rwlock_unlock __libc_rwlock_unlock +#else +# include "lock.h" +#endif + +/* Some compilers, like SunOS4 cc, don't have offsetof in <stddef.h>. */ +#ifndef offsetof +# define offsetof(type,ident) ((size_t)&(((type*)0)->ident)) +#endif + +/* @@ end of prolog @@ */ + +/* Lock variable to protect the global data in the gettext implementation. */ +gl_rwlock_define (extern, _nl_state_lock attribute_hidden) + + +/* 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 +# define BIND_TEXTDOMAIN_CODESET __bind_textdomain_codeset +# ifndef strdup +# define strdup(str) __strdup (str) +# endif +#else +# define BINDTEXTDOMAIN libintl_bindtextdomain +# define BIND_TEXTDOMAIN_CODESET libintl_bind_textdomain_codeset +#endif + +/* Specifies the directory name *DIRNAMEP and the output codeset *CODESETP + to be used for the DOMAINNAME message catalog. + If *DIRNAMEP or *CODESETP is NULL, the corresponding attribute is not + modified, only the current value is returned. + If DIRNAMEP or CODESETP is NULL, the corresponding attribute is neither + modified nor returned. */ +static void +set_binding_values (const char *domainname, + const char **dirnamep, const char **codesetp) +{ + struct binding *binding; + int modified; + + /* Some sanity checks. */ + if (domainname == NULL || domainname[0] == '\0') + { + if (dirnamep) + *dirnamep = NULL; + if (codesetp) + *codesetp = NULL; + return; + } + + gl_rwlock_wrlock (_nl_state_lock); + + modified = 0; + + 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 (binding != NULL) + { + if (dirnamep) + { + const char *dirname = *dirnamep; + + if (dirname == NULL) + /* The current binding has be to returned. */ + *dirnamep = binding->dirname; + else + { + /* The domain is already bound. If the new value and the old + one are equal we simply do nothing. Otherwise replace the + old binding. */ + char *result = binding->dirname; + if (strcmp (dirname, result) != 0) + { + if (strcmp (dirname, _nl_default_dirname) == 0) + result = (char *) _nl_default_dirname; + else + { +#if defined _LIBC || defined HAVE_STRDUP + result = strdup (dirname); +#else + size_t len = strlen (dirname) + 1; + result = (char *) malloc (len); + if (__builtin_expect (result != NULL, 1)) + memcpy (result, dirname, len); +#endif + } + + if (__builtin_expect (result != NULL, 1)) + { + if (binding->dirname != _nl_default_dirname) + free (binding->dirname); + + binding->dirname = result; + modified = 1; + } + } + *dirnamep = result; + } + } + + if (codesetp) + { + const char *codeset = *codesetp; + + if (codeset == NULL) + /* The current binding has be to returned. */ + *codesetp = binding->codeset; + else + { + /* The domain is already bound. If the new value and the old + one are equal we simply do nothing. Otherwise replace the + old binding. */ + char *result = binding->codeset; + if (result == NULL || strcmp (codeset, result) != 0) + { +#if defined _LIBC || defined HAVE_STRDUP + result = strdup (codeset); +#else + size_t len = strlen (codeset) + 1; + result = (char *) malloc (len); + if (__builtin_expect (result != NULL, 1)) + memcpy (result, codeset, len); +#endif + + if (__builtin_expect (result != NULL, 1)) + { + free (binding->codeset); + + binding->codeset = result; + modified = 1; + } + } + *codesetp = result; + } + } + } + else if ((dirnamep == NULL || *dirnamep == NULL) + && (codesetp == NULL || *codesetp == NULL)) + { + /* Simply return the default values. */ + if (dirnamep) + *dirnamep = _nl_default_dirname; + if (codesetp) + *codesetp = NULL; + } + else + { + /* We have to create a new binding. */ + size_t len = strlen (domainname) + 1; + struct binding *new_binding = + (struct binding *) malloc (offsetof (struct binding, domainname) + len); + + if (__builtin_expect (new_binding == NULL, 0)) + goto failed; + + memcpy (new_binding->domainname, domainname, len); + + if (dirnamep) + { + const char *dirname = *dirnamep; + + if (dirname == NULL) + /* The default value. */ + dirname = _nl_default_dirname; + else + { + if (strcmp (dirname, _nl_default_dirname) == 0) + dirname = _nl_default_dirname; + else + { + char *result; +#if defined _LIBC || defined HAVE_STRDUP + result = strdup (dirname); + if (__builtin_expect (result == NULL, 0)) + goto failed_dirname; +#else + size_t len = strlen (dirname) + 1; + result = (char *) malloc (len); + if (__builtin_expect (result == NULL, 0)) + goto failed_dirname; + memcpy (result, dirname, len); +#endif + dirname = result; + } + } + *dirnamep = dirname; + new_binding->dirname = (char *) dirname; + } + else + /* The default value. */ + new_binding->dirname = (char *) _nl_default_dirname; + + if (codesetp) + { + const char *codeset = *codesetp; + + if (codeset != NULL) + { + char *result; + +#if defined _LIBC || defined HAVE_STRDUP + result = strdup (codeset); + if (__builtin_expect (result == NULL, 0)) + goto failed_codeset; +#else + size_t len = strlen (codeset) + 1; + result = (char *) malloc (len); + if (__builtin_expect (result == NULL, 0)) + goto failed_codeset; + memcpy (result, codeset, len); +#endif + codeset = result; + } + *codesetp = codeset; + new_binding->codeset = (char *) codeset; + } + else + new_binding->codeset = NULL; + + /* 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; + } + + modified = 1; + + /* Here we deal with memory allocation failures. */ + if (0) + { + failed_codeset: + if (new_binding->dirname != _nl_default_dirname) + free (new_binding->dirname); + failed_dirname: + free (new_binding); + failed: + if (dirnamep) + *dirnamep = NULL; + if (codesetp) + *codesetp = NULL; + } + } + + /* If we modified any binding, we flush the caches. */ + if (modified) + ++_nl_msg_cat_cntr; + + gl_rwlock_unlock (_nl_state_lock); +} + +/* Specify that the DOMAINNAME message catalog will be found + in DIRNAME rather than in the system locale data base. */ +char * +BINDTEXTDOMAIN (const char *domainname, const char *dirname) +{ + set_binding_values (domainname, &dirname, NULL); + return (char *) dirname; +} + +/* Specify the character encoding in which the messages from the + DOMAINNAME message catalog will be returned. */ +char * +BIND_TEXTDOMAIN_CODESET (const char *domainname, const char *codeset) +{ + set_binding_values (domainname, NULL, &codeset); + return (char *) codeset; +} + +#ifdef _LIBC +/* Aliases for function names in GNU C Library. */ +weak_alias (__bindtextdomain, bindtextdomain); +weak_alias (__bind_textdomain_codeset, bind_textdomain_codeset); +#endif |