--- /dev/null
+/* Load needed message catalogs.
+ Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#if defined STDC_HEADERS || defined _LIBC
+# include <stdlib.h>
+#endif
+
+#if defined HAVE_UNISTD_H || defined _LIBC
+# include <unistd.h>
+#endif
+
+#if (defined HAVE_MMAP && defined HAVE_MUNMAP && !defined DISALLOW_MMAP) \
+ || (defined _LIBC && defined _POSIX_MAPPED_FILES)
+# include <sys/mman.h>
+# undef HAVE_MMAP
+# define HAVE_MMAP 1
+#else
+# undef HAVE_MMAP
+#endif
+
+#include "gettext.h"
+#include "gettextP.h"
+
+/* @@ end of prolog @@ */
+
+#ifdef _LIBC
+/* Rename the non ISO C functions. This is required by the standard
+ because some ISO C functions will require linking with this object
+ file and the name space must not be polluted. */
+# define open __open
+# define close __close
+# define read __read
+# define mmap __mmap
+# define munmap __munmap
+#endif
+
+/* We need a sign, whether a new catalog was loaded, which can be associated
+ with all translations. This is important if the translations are
+ cached by one of GCC's features. */
+int _nl_msg_cat_cntr = 0;
+
+
+/* Load the message catalogs specified by FILENAME. If it is no valid
+ message catalog do nothing. */
+void
+internal_function
+_nl_load_domain (domain_file)
+ struct loaded_l10nfile *domain_file;
+{
+ int fd;
+ size_t size;
+ struct stat st;
+ struct mo_file_header *data = (struct mo_file_header *) -1;
+ int use_mmap = 0;
+ struct loaded_domain *domain;
+
+ domain_file->decided = 1;
+ domain_file->data = NULL;
+
+ /* If the record does not represent a valid locale the FILENAME
+ might be NULL. This can happen when according to the given
+ specification the locale file name is different for XPG and CEN
+ syntax. */
+ if (domain_file->filename == NULL)
+ return;
+
+ /* Try to open the addressed file. */
+ fd = open (domain_file->filename, O_RDONLY);
+ if (fd == -1)
+ return;
+
+ /* We must know about the size of the file. */
+ if (fstat (fd, &st) != 0
+ || (size = (size_t) st.st_size) != st.st_size
+ || size < sizeof (struct mo_file_header))
+ {
+ /* Something went wrong. */
+ close (fd);
+ return;
+ }
+
+#ifdef HAVE_MMAP
+ /* Now we are ready to load the file. If mmap() is available we try
+ this first. If not available or it failed we try to load it. */
+ data = (struct mo_file_header *) mmap (NULL, size, PROT_READ,
+ MAP_PRIVATE, fd, 0);
+
+ if (data != (struct mo_file_header *) -1)
+ {
+ /* mmap() call was successful. */
+ close (fd);
+ use_mmap = 1;
+ }
+#endif
+
+ /* If the data is not yet available (i.e. mmap'ed) we try to load
+ it manually. */
+ if (data == (struct mo_file_header *) -1)
+ {
+ size_t to_read;
+ char *read_ptr;
+
+ data = (struct mo_file_header *) malloc (size);
+ if (data == NULL)
+ return;
+
+ to_read = size;
+ read_ptr = (char *) data;
+ do
+ {
+ long int nb = (long int) read (fd, read_ptr, to_read);
+ if (nb == -1)
+ {
+ close (fd);
+ return;
+ }
+
+ read_ptr += nb;
+ to_read -= nb;
+ }
+ while (to_read > 0);
+
+ close (fd);
+ }
+
+ /* Using the magic number we can test whether it really is a message
+ catalog file. */
+ if (data->magic != _MAGIC && data->magic != _MAGIC_SWAPPED)
+ {
+ /* The magic number is wrong: not a message catalog file. */
+#ifdef HAVE_MMAP
+ if (use_mmap)
+ munmap ((caddr_t) data, size);
+ else
+#endif
+ free (data);
+ return;
+ }
+
+ domain_file->data
+ = (struct loaded_domain *) malloc (sizeof (struct loaded_domain));
+ if (domain_file->data == NULL)
+ return;
+
+ domain = (struct loaded_domain *) domain_file->data;
+ domain->data = (char *) data;
+ domain->use_mmap = use_mmap;
+ domain->mmap_size = size;
+ domain->must_swap = data->magic != _MAGIC;
+
+ /* Fill in the information about the available tables. */
+ switch (W (domain->must_swap, data->revision))
+ {
+ case 0:
+ domain->nstrings = W (domain->must_swap, data->nstrings);
+ domain->orig_tab = (struct string_desc *)
+ ((char *) data + W (domain->must_swap, data->orig_tab_offset));
+ domain->trans_tab = (struct string_desc *)
+ ((char *) data + W (domain->must_swap, data->trans_tab_offset));
+ domain->hash_size = W (domain->must_swap, data->hash_tab_size);
+ domain->hash_tab = (nls_uint32 *)
+ ((char *) data + W (domain->must_swap, data->hash_tab_offset));
+ break;
+ default:
+ /* This is an invalid revision. */
+#ifdef HAVE_MMAP
+ if (use_mmap)
+ munmap ((caddr_t) data, size);
+ else
+#endif
+ free (data);
+ free (domain);
+ domain_file->data = NULL;
+ return;
+ }
+
+ /* Show that one domain is changed. This might make some cached
+ translations invalid. */
+ ++_nl_msg_cat_cntr;
+}
+
+
+#ifdef _LIBC
+void
+internal_function
+_nl_unload_domain (domain)
+ struct loaded_domain *domain;
+{
+#ifdef _POSIX_MAPPED_FILES
+ if (domain->use_mmap)
+ munmap ((caddr_t) domain->data, domain->mmap_size);
+ else
+#endif /* _POSIX_MAPPED_FILES */
+ free ((void *) domain->data);
+
+ free (domain);
+}
+#endif
projects / tinc / blobdiff