767 lines
20 KiB
C
767 lines
20 KiB
C
/* Copyright (C) 1996-2001, 2002, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#include "../../crypt/md5.h"
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#include "localedef.h"
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#include "locfile.h"
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#include "simple-hash.h"
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#include "locfile-kw.h"
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/* Temporary storage of the locale data before writing it to the archive. */
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static locale_data_t to_archive;
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int
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locfile_read (struct localedef_t *result, const struct charmap_t *charmap)
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{
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const char *filename = result->name;
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const char *repertoire_name = result->repertoire_name;
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int locale_mask = result->needed & ~result->avail;
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struct linereader *ldfile;
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int not_here = ALL_LOCALES;
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/* If no repertoire name was specified use the global one. */
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if (repertoire_name == NULL)
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repertoire_name = repertoire_global;
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/* Open the locale definition file. */
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ldfile = lr_open (filename, locfile_hash);
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if (ldfile == NULL)
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{
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if (filename != NULL && filename[0] != '/')
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{
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char *i18npath = getenv ("I18NPATH");
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if (i18npath != NULL && *i18npath != '\0')
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{
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char path[strlen (filename) + 1 + strlen (i18npath)
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+ sizeof ("/locales/") - 1];
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char *next;
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i18npath = strdupa (i18npath);
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while (ldfile == NULL
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&& (next = strsep (&i18npath, ":")) != NULL)
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{
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stpcpy (stpcpy (stpcpy (path, next), "/locales/"), filename);
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ldfile = lr_open (path, locfile_hash);
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if (ldfile == NULL)
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{
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stpcpy (stpcpy (path, next), filename);
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ldfile = lr_open (path, locfile_hash);
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}
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}
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}
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/* Test in the default directory. */
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if (ldfile == NULL)
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{
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char path[strlen (filename) + 1 + sizeof (LOCSRCDIR)];
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stpcpy (stpcpy (stpcpy (path, LOCSRCDIR), "/"), filename);
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ldfile = lr_open (path, locfile_hash);
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}
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}
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if (ldfile == NULL)
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return 1;
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}
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/* Parse locale definition file and store result in RESULT. */
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while (1)
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{
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struct token *now = lr_token (ldfile, charmap, NULL, NULL, verbose);
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enum token_t nowtok = now->tok;
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struct token *arg;
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if (nowtok == tok_eof)
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break;
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if (nowtok == tok_eol)
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/* Ignore empty lines. */
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continue;
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switch (nowtok)
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{
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case tok_escape_char:
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case tok_comment_char:
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/* We need an argument. */
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arg = lr_token (ldfile, charmap, NULL, NULL, verbose);
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if (arg->tok != tok_ident)
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{
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SYNTAX_ERROR (_("bad argument"));
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continue;
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}
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if (arg->val.str.lenmb != 1)
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{
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lr_error (ldfile, _("\
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argument to `%s' must be a single character"),
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nowtok == tok_escape_char
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? "escape_char" : "comment_char");
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lr_ignore_rest (ldfile, 0);
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continue;
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}
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if (nowtok == tok_escape_char)
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ldfile->escape_char = *arg->val.str.startmb;
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else
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ldfile->comment_char = *arg->val.str.startmb;
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break;
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case tok_repertoiremap:
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/* We need an argument. */
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arg = lr_token (ldfile, charmap, NULL, NULL, verbose);
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if (arg->tok != tok_ident)
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{
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SYNTAX_ERROR (_("bad argument"));
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continue;
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}
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if (repertoire_name == NULL)
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{
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repertoire_name = memcpy (xmalloc (arg->val.str.lenmb + 1),
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arg->val.str.startmb,
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arg->val.str.lenmb);
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((char *) repertoire_name)[arg->val.str.lenmb] = '\0';
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}
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break;
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case tok_lc_ctype:
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ctype_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & CTYPE_LOCALE) == 0);
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result->avail |= locale_mask & CTYPE_LOCALE;
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not_here ^= CTYPE_LOCALE;
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continue;
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case tok_lc_collate:
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collate_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & COLLATE_LOCALE) == 0);
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result->avail |= locale_mask & COLLATE_LOCALE;
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not_here ^= COLLATE_LOCALE;
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continue;
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case tok_lc_monetary:
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monetary_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & MONETARY_LOCALE) == 0);
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result->avail |= locale_mask & MONETARY_LOCALE;
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not_here ^= MONETARY_LOCALE;
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continue;
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case tok_lc_numeric:
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numeric_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & NUMERIC_LOCALE) == 0);
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result->avail |= locale_mask & NUMERIC_LOCALE;
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not_here ^= NUMERIC_LOCALE;
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continue;
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case tok_lc_time:
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time_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & TIME_LOCALE) == 0);
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result->avail |= locale_mask & TIME_LOCALE;
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not_here ^= TIME_LOCALE;
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continue;
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case tok_lc_messages:
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messages_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & MESSAGES_LOCALE) == 0);
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result->avail |= locale_mask & MESSAGES_LOCALE;
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not_here ^= MESSAGES_LOCALE;
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continue;
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case tok_lc_paper:
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paper_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & PAPER_LOCALE) == 0);
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result->avail |= locale_mask & PAPER_LOCALE;
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not_here ^= PAPER_LOCALE;
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continue;
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case tok_lc_name:
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name_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & NAME_LOCALE) == 0);
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result->avail |= locale_mask & NAME_LOCALE;
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not_here ^= NAME_LOCALE;
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continue;
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case tok_lc_address:
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address_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & ADDRESS_LOCALE) == 0);
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result->avail |= locale_mask & ADDRESS_LOCALE;
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not_here ^= ADDRESS_LOCALE;
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continue;
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case tok_lc_telephone:
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telephone_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & TELEPHONE_LOCALE) == 0);
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result->avail |= locale_mask & TELEPHONE_LOCALE;
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not_here ^= TELEPHONE_LOCALE;
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continue;
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case tok_lc_measurement:
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measurement_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & MEASUREMENT_LOCALE) == 0);
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result->avail |= locale_mask & MEASUREMENT_LOCALE;
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not_here ^= MEASUREMENT_LOCALE;
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continue;
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case tok_lc_identification:
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identification_read (ldfile, result, charmap, repertoire_name,
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(locale_mask & IDENTIFICATION_LOCALE) == 0);
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result->avail |= locale_mask & IDENTIFICATION_LOCALE;
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not_here ^= IDENTIFICATION_LOCALE;
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continue;
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default:
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SYNTAX_ERROR (_("\
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syntax error: not inside a locale definition section"));
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continue;
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}
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/* The rest of the line must be empty. */
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lr_ignore_rest (ldfile, 1);
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}
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/* We read all of the file. */
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lr_close (ldfile);
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/* Mark the categories which are not contained in the file. We assume
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them to be available and the default data will be used. */
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result->avail |= not_here;
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return 0;
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}
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/* Semantic checking of locale specifications. */
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static void (*const check_funcs[]) (struct localedef_t *,
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const struct charmap_t *) =
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{
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[LC_CTYPE] = ctype_finish,
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[LC_COLLATE] = collate_finish,
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[LC_MESSAGES] = messages_finish,
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[LC_MONETARY] = monetary_finish,
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[LC_NUMERIC] = numeric_finish,
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[LC_TIME] = time_finish,
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[LC_PAPER] = paper_finish,
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[LC_NAME] = name_finish,
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[LC_ADDRESS] = address_finish,
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[LC_TELEPHONE] = telephone_finish,
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[LC_MEASUREMENT] = measurement_finish,
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[LC_IDENTIFICATION] = identification_finish
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};
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void
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check_all_categories (struct localedef_t *definitions,
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const struct charmap_t *charmap)
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{
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int cnt;
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for (cnt = 0; cnt < sizeof (check_funcs) / sizeof (check_funcs[0]); ++cnt)
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if (check_funcs[cnt] != NULL)
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check_funcs[cnt] (definitions, charmap);
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}
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/* Writing the locale data files. All files use the same output_path. */
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static void (*const write_funcs[]) (struct localedef_t *,
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const struct charmap_t *, const char *) =
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{
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[LC_CTYPE] = ctype_output,
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[LC_COLLATE] = collate_output,
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[LC_MESSAGES] = messages_output,
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[LC_MONETARY] = monetary_output,
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[LC_NUMERIC] = numeric_output,
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[LC_TIME] = time_output,
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[LC_PAPER] = paper_output,
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[LC_NAME] = name_output,
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[LC_ADDRESS] = address_output,
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[LC_TELEPHONE] = telephone_output,
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[LC_MEASUREMENT] = measurement_output,
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[LC_IDENTIFICATION] = identification_output
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};
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void
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write_all_categories (struct localedef_t *definitions,
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const struct charmap_t *charmap, const char *locname,
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const char *output_path)
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{
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int cnt;
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for (cnt = 0; cnt < sizeof (write_funcs) / sizeof (write_funcs[0]); ++cnt)
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if (write_funcs[cnt] != NULL)
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write_funcs[cnt] (definitions, charmap, output_path);
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if (! no_archive)
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{
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/* The data has to be added to the archive. Do this now. */
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struct locarhandle ah;
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/* Open the archive. This call never returns if we cannot
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successfully open the archive. */
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open_archive (&ah, false);
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if (add_locale_to_archive (&ah, locname, to_archive, true) != 0)
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error (EXIT_FAILURE, errno, _("cannot add to locale archive"));
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/* We are done. */
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close_archive (&ah);
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}
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}
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/* Return a NULL terminated list of the directories next to output_path
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that have the same owner, group, permissions and device as output_path. */
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static const char **
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siblings_uncached (const char *output_path)
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{
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size_t len;
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char *base, *p;
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struct stat output_stat;
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DIR *dirp;
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int nelems;
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const char **elems;
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/* Remove trailing slashes and trailing pathname component. */
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len = strlen (output_path);
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base = (char *) alloca (len);
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memcpy (base, output_path, len);
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p = base + len;
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while (p > base && p[-1] == '/')
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p--;
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if (p == base)
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return NULL;
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do
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p--;
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while (p > base && p[-1] != '/');
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if (p == base)
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return NULL;
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*--p = '\0';
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len = p - base;
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/* Get the properties of output_path. */
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if (lstat (output_path, &output_stat) < 0 || !S_ISDIR (output_stat.st_mode))
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return NULL;
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/* Iterate through the directories in base directory. */
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dirp = opendir (base);
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if (dirp == NULL)
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return NULL;
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nelems = 0;
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elems = NULL;
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for (;;)
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{
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struct dirent64 *other_dentry;
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const char *other_name;
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char *other_path;
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struct stat other_stat;
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other_dentry = readdir64 (dirp);
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if (other_dentry == NULL)
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break;
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other_name = other_dentry->d_name;
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if (strcmp (other_name, ".") == 0 || strcmp (other_name, "..") == 0)
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continue;
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other_path = (char *) xmalloc (len + 1 + strlen (other_name) + 2);
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memcpy (other_path, base, len);
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other_path[len] = '/';
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strcpy (other_path + len + 1, other_name);
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if (lstat (other_path, &other_stat) >= 0
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&& S_ISDIR (other_stat.st_mode)
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&& other_stat.st_uid == output_stat.st_uid
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&& other_stat.st_gid == output_stat.st_gid
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&& other_stat.st_mode == output_stat.st_mode
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&& other_stat.st_dev == output_stat.st_dev)
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{
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/* Found a subdirectory. Add a trailing slash and store it. */
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p = other_path + len + 1 + strlen (other_name);
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*p++ = '/';
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*p = '\0';
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elems = (const char **) xrealloc ((char *) elems,
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(nelems + 2) * sizeof (char **));
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elems[nelems++] = other_path;
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}
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else
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free (other_path);
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}
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closedir (dirp);
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if (elems != NULL)
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elems[nelems] = NULL;
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return elems;
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}
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/* Return a NULL terminated list of the directories next to output_path
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that have the same owner, group, permissions and device as output_path.
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Cache the result for future calls. */
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static const char **
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siblings (const char *output_path)
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{
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static const char *last_output_path;
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static const char **last_result;
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if (output_path != last_output_path)
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{
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if (last_result != NULL)
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{
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const char **p;
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for (p = last_result; *p != NULL; p++)
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free ((char *) *p);
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free (last_result);
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}
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last_output_path = output_path;
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last_result = siblings_uncached (output_path);
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}
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return last_result;
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}
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/* Read as many bytes from a file descriptor as possible. */
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static ssize_t
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full_read (int fd, void *bufarea, size_t nbyte)
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{
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char *buf = (char *) bufarea;
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while (nbyte > 0)
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{
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ssize_t retval = read (fd, buf, nbyte);
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if (retval == 0)
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break;
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else if (retval > 0)
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{
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buf += retval;
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nbyte -= retval;
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}
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else if (errno != EINTR)
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return retval;
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}
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return buf - (char *) bufarea;
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}
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/* Compare the contents of two regular files of the same size. Return 0
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if they are equal, 1 if they are different, or -1 if an error occurs. */
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static int
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compare_files (const char *filename1, const char *filename2, size_t size,
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size_t blocksize)
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{
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int fd1, fd2;
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int ret = -1;
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fd1 = open (filename1, O_RDONLY);
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if (fd1 >= 0)
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{
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fd2 = open (filename2, O_RDONLY);
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if (fd2 >= 0)
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{
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char *buf1 = (char *) xmalloc (2 * blocksize);
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char *buf2 = buf1 + blocksize;
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ret = 0;
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while (size > 0)
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{
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size_t bytes = (size < blocksize ? size : blocksize);
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if (full_read (fd1, buf1, bytes) < (ssize_t) bytes)
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{
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ret = -1;
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break;
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}
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if (full_read (fd2, buf2, bytes) < (ssize_t) bytes)
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{
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ret = -1;
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break;
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}
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if (memcmp (buf1, buf2, bytes) != 0)
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{
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ret = 1;
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break;
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}
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size -= bytes;
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}
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free (buf1);
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close (fd2);
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}
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close (fd1);
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}
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return ret;
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}
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/* Write a locale file, with contents given by N_ELEM and VEC. */
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void
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write_locale_data (const char *output_path, int catidx, const char *category,
|
|
size_t n_elem, struct iovec *vec)
|
|
{
|
|
size_t cnt, step, maxiov;
|
|
int fd;
|
|
char *fname;
|
|
const char **other_paths;
|
|
|
|
if (! no_archive)
|
|
{
|
|
/* The data will be added to the archive. For now we simply
|
|
generate the image which will be written. First determine
|
|
the size. */
|
|
int cnt;
|
|
void *endp;
|
|
|
|
to_archive[catidx].size = 0;
|
|
for (cnt = 0; cnt < n_elem; ++cnt)
|
|
to_archive[catidx].size += vec[cnt].iov_len;
|
|
|
|
/* Allocate the memory for it. */
|
|
to_archive[catidx].addr = xmalloc (to_archive[catidx].size);
|
|
|
|
/* Fill it in. */
|
|
for (cnt = 0, endp = to_archive[catidx].addr; cnt < n_elem; ++cnt)
|
|
endp = mempcpy (endp, vec[cnt].iov_base, vec[cnt].iov_len);
|
|
|
|
/* Compute the MD5 sum for the data. */
|
|
__md5_buffer (to_archive[catidx].addr, to_archive[catidx].size,
|
|
to_archive[catidx].sum);
|
|
|
|
return;
|
|
}
|
|
|
|
fname = xmalloc (strlen (output_path) + 2 * strlen (category) + 7);
|
|
|
|
/* Normally we write to the directory pointed to by the OUTPUT_PATH.
|
|
But for LC_MESSAGES we have to take care for the translation
|
|
data. This means we need to have a directory LC_MESSAGES in
|
|
which we place the file under the name SYS_LC_MESSAGES. */
|
|
sprintf (fname, "%s%s", output_path, category);
|
|
fd = -2;
|
|
if (strcmp (category, "LC_MESSAGES") == 0)
|
|
{
|
|
struct stat st;
|
|
|
|
if (stat (fname, &st) < 0)
|
|
{
|
|
if (mkdir (fname, 0777) >= 0)
|
|
{
|
|
fd = -1;
|
|
errno = EISDIR;
|
|
}
|
|
}
|
|
else if (!S_ISREG (st.st_mode))
|
|
{
|
|
fd = -1;
|
|
errno = EISDIR;
|
|
}
|
|
}
|
|
|
|
/* Create the locale file with nlinks == 1; this avoids crashing processes
|
|
which currently use the locale and damaging files belonging to other
|
|
locales as well. */
|
|
if (fd == -2)
|
|
{
|
|
unlink (fname);
|
|
fd = creat (fname, 0666);
|
|
}
|
|
|
|
if (fd == -1)
|
|
{
|
|
int save_err = errno;
|
|
|
|
if (errno == EISDIR)
|
|
{
|
|
sprintf (fname, "%1$s%2$s/SYS_%2$s", output_path, category);
|
|
unlink (fname);
|
|
fd = creat (fname, 0666);
|
|
if (fd == -1)
|
|
save_err = errno;
|
|
}
|
|
|
|
if (fd == -1)
|
|
{
|
|
if (!be_quiet)
|
|
WITH_CUR_LOCALE (error (0, save_err, _("\
|
|
cannot open output file `%s' for category `%s'"), fname, category));
|
|
free (fname);
|
|
return;
|
|
}
|
|
}
|
|
|
|
#ifdef UIO_MAXIOV
|
|
maxiov = UIO_MAXIOV;
|
|
#else
|
|
maxiov = sysconf (_SC_UIO_MAXIOV);
|
|
#endif
|
|
|
|
/* Write the data using writev. But we must take care for the
|
|
limitation of the implementation. */
|
|
for (cnt = 0; cnt < n_elem; cnt += step)
|
|
{
|
|
step = n_elem - cnt;
|
|
if (maxiov > 0)
|
|
step = MIN (maxiov, step);
|
|
|
|
if (writev (fd, &vec[cnt], step) < 0)
|
|
{
|
|
if (!be_quiet)
|
|
WITH_CUR_LOCALE (error (0, errno, _("\
|
|
failure while writing data for category `%s'"), category));
|
|
break;
|
|
}
|
|
}
|
|
|
|
close (fd);
|
|
|
|
/* Compare the file with the locale data files for the same category in
|
|
other locales, and see if we can reuse it, to save disk space. */
|
|
other_paths = siblings (output_path);
|
|
if (other_paths != NULL)
|
|
{
|
|
struct stat fname_stat;
|
|
|
|
if (lstat (fname, &fname_stat) >= 0
|
|
&& S_ISREG (fname_stat.st_mode))
|
|
{
|
|
const char *fname_tail = fname + strlen (output_path);
|
|
const char **other_p;
|
|
int seen_count;
|
|
ino_t *seen_inodes;
|
|
|
|
seen_count = 0;
|
|
for (other_p = other_paths; *other_p; other_p++)
|
|
seen_count++;
|
|
seen_inodes = (ino_t *) xmalloc (seen_count * sizeof (ino_t));
|
|
seen_count = 0;
|
|
|
|
for (other_p = other_paths; *other_p; other_p++)
|
|
{
|
|
const char *other_path = *other_p;
|
|
size_t other_path_len = strlen (other_path);
|
|
char *other_fname;
|
|
struct stat other_fname_stat;
|
|
|
|
other_fname =
|
|
(char *) xmalloc (other_path_len + strlen (fname_tail) + 1);
|
|
memcpy (other_fname, other_path, other_path_len);
|
|
strcpy (other_fname + other_path_len, fname_tail);
|
|
|
|
if (lstat (other_fname, &other_fname_stat) >= 0
|
|
&& S_ISREG (other_fname_stat.st_mode)
|
|
/* Consider only files on the same device.
|
|
Otherwise hard linking won't work anyway. */
|
|
&& other_fname_stat.st_dev == fname_stat.st_dev
|
|
/* Consider only files with the same permissions.
|
|
Otherwise there are security risks. */
|
|
&& other_fname_stat.st_uid == fname_stat.st_uid
|
|
&& other_fname_stat.st_gid == fname_stat.st_gid
|
|
&& other_fname_stat.st_mode == fname_stat.st_mode
|
|
/* Don't compare fname with itself. */
|
|
&& other_fname_stat.st_ino != fname_stat.st_ino
|
|
/* Files must have the same size, otherwise they
|
|
cannot be the same. */
|
|
&& other_fname_stat.st_size == fname_stat.st_size)
|
|
{
|
|
/* Skip this file if we have already read it (under a
|
|
different name). */
|
|
int i;
|
|
|
|
for (i = seen_count - 1; i >= 0; i--)
|
|
if (seen_inodes[i] == other_fname_stat.st_ino)
|
|
break;
|
|
if (i < 0)
|
|
{
|
|
/* Now compare fname and other_fname for real. */
|
|
blksize_t blocksize;
|
|
|
|
#ifdef _STATBUF_ST_BLKSIZE
|
|
blocksize = MAX (fname_stat.st_blksize,
|
|
other_fname_stat.st_blksize);
|
|
if (blocksize > 8 * 1024)
|
|
blocksize = 8 * 1024;
|
|
#else
|
|
blocksize = 8 * 1024;
|
|
#endif
|
|
|
|
if (compare_files (fname, other_fname,
|
|
fname_stat.st_size, blocksize) == 0)
|
|
{
|
|
/* Found! other_fname is identical to fname. */
|
|
/* Link other_fname to fname. But use a temporary
|
|
file, in case hard links don't work on the
|
|
particular filesystem. */
|
|
char * tmp_fname =
|
|
(char *) xmalloc (strlen (fname) + 4 + 1);
|
|
|
|
strcpy (stpcpy (tmp_fname, fname), ".tmp");
|
|
|
|
if (link (other_fname, tmp_fname) >= 0)
|
|
{
|
|
unlink (fname);
|
|
if (rename (tmp_fname, fname) < 0)
|
|
{
|
|
if (!be_quiet)
|
|
WITH_CUR_LOCALE (error (0, errno, _("\
|
|
cannot create output file `%s' for category `%s'"), fname, category));
|
|
}
|
|
free (tmp_fname);
|
|
free (other_fname);
|
|
break;
|
|
}
|
|
free (tmp_fname);
|
|
}
|
|
|
|
/* Don't compare with this file a second time. */
|
|
seen_inodes[seen_count++] = other_fname_stat.st_ino;
|
|
}
|
|
}
|
|
free (other_fname);
|
|
}
|
|
free (seen_inodes);
|
|
}
|
|
}
|
|
|
|
free (fname);
|
|
}
|