| 1 | /* Load needed message catalogs
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| 2 | Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
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| 3 |
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| 4 | This program is free software; you can redistribute it and/or modify
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| 5 | it under the terms of the GNU General Public License as published by
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| 6 | the Free Software Foundation; either version 2, or (at your option)
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| 7 | any later version.
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| 8 |
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| 9 | This program is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 12 | GNU General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU General Public License
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| 15 | along with this program; if not, write to the Free Software Foundation,
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| 16 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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| 17 |
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| 18 | #ifdef HAVE_CONFIG_H
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| 19 | # include <config.h>
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| 20 | #endif
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| 21 |
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| 22 | #include <fcntl.h>
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| 23 | #include <sys/types.h>
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| 24 | #include <sys/stat.h>
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| 25 |
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| 26 | #if defined STDC_HEADERS || defined _LIBC
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| 27 | # include <stdlib.h>
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| 28 | #endif
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| 29 |
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| 30 | #if defined HAVE_UNISTD_H || defined _LIBC
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| 31 | # include <unistd.h>
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| 32 | #endif
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| 33 |
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| 34 | #if (defined HAVE_MMAP && defined HAVE_MUNMAP) || defined _LIBC
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| 35 | # include <sys/mman.h>
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| 36 | #endif
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| 37 |
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| 38 | #include "gettext.h"
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| 39 | #include "gettextP.h"
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| 40 |
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| 41 | /* @@ end of prolog @@ */
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| 42 |
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| 43 | #ifdef _LIBC
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| 44 | /* Rename the non ISO C functions. This is required by the standard
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| 45 | because some ISO C functions will require linking with this object
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| 46 | file and the name space must not be polluted. */
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| 47 | # define fstat __fstat
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| 48 | # define open __open
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| 49 | # define close __close
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| 50 | # define read __read
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| 51 | # define mmap __mmap
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| 52 | # define munmap __munmap
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| 53 | #endif
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| 54 |
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| 55 | /* We need a sign, whether a new catalog was loaded, which can be associated
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| 56 | with all translations. This is important if the translations are
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| 57 | cached by one of GCC's features. */
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| 58 | int _nl_msg_cat_cntr = 0;
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| 59 |
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| 60 |
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| 61 | /* Load the message catalogs specified by FILENAME. If it is no valid
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| 62 | message catalog do nothing. */
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| 63 | void
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| 64 | _nl_load_domain (domain_file)
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| 65 | struct loaded_l10nfile *domain_file;
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| 66 | {
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| 67 | int fd;
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| 68 | struct stat st;
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| 69 | struct mo_file_header *data = (struct mo_file_header *) -1;
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| 70 | #if (defined HAVE_MMAP && defined HAVE_MUNMAP && !defined DISALLOW_MMAP) \
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| 71 | || defined _LIBC
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| 72 | int use_mmap = 0;
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| 73 | #endif
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| 74 | struct loaded_domain *domain;
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| 75 |
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| 76 | domain_file->decided = 1;
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| 77 | domain_file->data = NULL;
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| 78 |
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| 79 | /* If the record does not represent a valid locale the FILENAME
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| 80 | might be NULL. This can happen when according to the given
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| 81 | specification the locale file name is different for XPG and CEN
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| 82 | syntax. */
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| 83 | if (domain_file->filename == NULL)
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| 84 | return;
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| 85 |
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| 86 | /* Try to open the addressed file. */
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| 87 | fd = open (domain_file->filename, O_RDONLY);
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| 88 | if (fd == -1)
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| 89 | return;
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| 90 |
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| 91 | /* We must know about the size of the file. */
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| 92 | if (fstat (fd, &st) != 0
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| 93 | && st.st_size < (off_t) sizeof (struct mo_file_header))
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| 94 | {
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| 95 | /* Something went wrong. */
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| 96 | close (fd);
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| 97 | return;
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| 98 | }
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| 99 |
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| 100 | #if (defined HAVE_MMAP && defined HAVE_MUNMAP && !defined DISALLOW_MMAP) \
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| 101 | || defined _LIBC
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| 102 | /* Now we are ready to load the file. If mmap() is available we try
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| 103 | this first. If not available or it failed we try to load it. */
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| 104 | data = (struct mo_file_header *) mmap (NULL, st.st_size, PROT_READ,
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