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1999-04-28 Ulrich Drepper <drepper@cygnus.com> * argp/argp-ba.c (argp_program_bug_address): Don't initialize with 0. * argp/argp-parse.c (_argp_hang): Likewise. * argp/argp-pv.c (argp_program_version): Likewise. * argp/argp-pvh.c (argp_program_version_hook): Likewise. * inet/ether_hton.c (ether_hton, startp): Likewise. * inet/ether_ntoh.c (ether_ntoh, startp): Likewise. * inet/getnetgrent_r.c (setup, startp): Likewise. * intl/loadmsgcat.c (_nl_msg_cat_cntr): Likewise. * intl/localealias.c (string_space, string_space_act, string_space_max, nmap, maxmap): Likewise. * libio/iopopen.c (proc_file_chain): Likewise. * libio/oldiopopen.c (old_proc_file_chain): Likewise. * locale/lc-collate.c (__collate_table, __collate_extra, __collate_element_hash, __collate_element_strings, __collate_element_values): Likewise. * malloc/mcheck.c (mcheck_used): Likewise. * malloc/mtrace.c (added_atexit_handler): Likewise. * malloc/set-freeres.c (already_called): Likewise. * misc/getpass.c (getpass) [buf, bufsize]: Likewise. * misc/syslog.c (LogStat, LogTag): Likewise. * nss/XXX-lookup.c (DATABASE_NAME_SYMBOL): Likewise. * nss/getXXbyYY_r.c (startp): Likewise. * posix/getopt.c (optarg, __getopt_initialized): Likewise. * posix/regex.c (init_syntax_once) [done]: Likewise. (debug): Likewise. * string/strfry.c (init): Likewise. * sunrpc/svc_run.c (svc_top): Likewise. * posix/euidaccess.c (have_ids): Likewise. * sysdeps/unix/sysv/linux/poll.c (must_emulate): Likewise. * sysdeps/unix/sysv/linux/ttyname.c (__ttyname, namelen): Likewise. * time/getdate.c (getdate_err): Likewise. * time/tzfile.c (transitions, type_idxs, types, zone_names, leaps): Likewise. * time/tzset.c (old_tz, is_initialized): Likewise. * inet/getnameinfo.c (nrl_domainname): Rewrite to allow initialization of static data with zero. * signal/allocrtsig.c (init): Likewise. * string/Makefile (routines): Add strchrnul. * string/Versions [GLIBC_2.1.1]: Add strchrnul. * string/string.c: Add strchrnul prototype. * include/string.h: Add __strchrnul prototype. * sysdeps/generic/strchrnul.c: New file. * sysdeps/i386/strchrnul.S: New file. * sysdeps/i386/bits/string.c: Add strchrnul optimization. * sysdeps/i386/i486/bits/string.c: Likewise. * argp/argp-help.c (argp_args_usage): Use __strchrnul. * inet/ether_line.c (ether_line): Likewise. * nscd/nscd_conf.c (nscd_parse_file): Likewise. * nss/nsswitch.c (nss_parse_file): Likewise. * posix/execvp.c (execvp): Likewise. * posix/fnmatch.c (internal_fnmatch): Likewise. * resolv/res_hconf.c (_res_hconv_init): Likewise. * resolv/res_init.c (res_init): Likewise. * stdlib/fmtmsg.c (init): Likewise. * stdlib/getsubopt.c (getsubopt): Likewise. * catgets/catgets.c (catopen): Only allocate one memory block. (catclose): Only one free call necessary. * catgets/open_catalog.c (__open_catalog): Simplify handling of file descriptor. * ctype/ctype-extn.c: Make __toascii_l and __isascii_l alias instead of real functions. Simplify _tolower and _toupper. * grp/initgroups.c (compat_call): Remove unnecessary use of pointer variable. * iconv/gconv.h (struct gconv_info): Change data element from pointer to array of size 0. * iconv/gconv_open.c (__gconv_open): Allocate structures accordingly. * iconv/gconv_close.c (__gconv_close): Don't free data. * iconv/gconv_conf.c (add_alias): Avoid searching in tree twice to insert new alias. * iconv/gconv_db.c (add_derivation): More efficient copying. Check for error while inserting in tree. * include/time.h: Pretty print. * inet/ruserpass.c: Rewrite use of toktab to avoid string pointers in table and lots of relocations. * posix/regex.c (regerror): Rewrite use of re_error_msgid to avoid string pointers in table and lots of relocations. * intl/finddomain.c: Remove definition of strchr macro. * io/ftw.c (nftw_arr, ftw_arr): Make const. * locale/loadlocale.c (_nl_load_locale): Optimize string copying. * locale/localeinfo.h (_nl_category_names): Change into an array with fixed width char string elements. * locale/setlocale.c (_nl_category_names): Likewise. (_nl_current): Make global. * locale/nl_langinfo.c (nldata): Removed. Use _nl_current now. * malloc/Makefile (distribute): Add stackinfo.h. * sysdeps/generic/stackinfo.h: New file. * sysdeps/i386/stackinfo.h: New file. * posix/execl.c: Use stackinfo.h in optimizing alloca use. * posix/execle.c: Likewise. * posix/execlp.c: Likewise. * nis/nis_table.c (__create_ib_request): Always use realloc. * posix/execvp.c (execute): Rename to script_execute and keep only code to execute using shell. (execvp): Call execv directly and only fall back on script_execute. * resolv/inet_net_pton.c (inet_net_pton_ipv4): Remove digits define and always use xdigits instead. * resolv/res_init.c (res_init): Use rawmemchr instead of strchr where appropriate. * stdlib/fpioconst.h (__tens): New declaration. (struct mp_power): Remove array, add arrayoff element. * stdlib/fpioconst.c: Replace definitions of _ten_p* arrays by one __tens array and add in _fpioconst_pow10 offsets into __tens. * stdio-common/printf_fp.c: Rewrite to use new __tens array. * stdlib/strtod.c: Likewise. * stdlib/a64l.c (a64l_table): Avoid unnecessary elements. * stdlib/exit.c: Rewrite to use __exit_funcs being as sign for end of the list. * stdlib/atexit.c (__exit_funcs): Don't initialize. * stdlib/fmtmsg.c (keywords): Make name element fixed width array. * sunrpc/clnt_perr.c: Rewrite clnt_sperrno and auth_errmsg to use a single and an array with offsets. * sunrpc/des_soft.c (partab): Make it const. * sunrpc/key_call.c (trytimeout, tottimeout): Make const. (__key_encryptsession_pk_LOCAL): Don't initialize with 0. (__key_decryptsession_pk_LOCAL): Likewise. (__key_gendes_LOCAL): Likewise. (MESSENGER): Mark const. (key_call_private_main): Don't initialize with 0. (use_keyenvoy): Don't initialize with 0. (key_call): Rewrite to reverse logic of use_doors variable. * sunrpc/netname.c (OPSYS): Define as array, not pointer. (startp): Don't initialize with zero. * sunrpc/openchild.c (_openchild): Make first argument const. * sunrpc/pmap_rmt.c (timeout): Mark const. * sunrpc/xcrypt.c (hex): Likewise. * sysdeps/unix/sysv/linux/getcwd.c: Rewrite to allow omitting initialization of global variables. * sysdeps/unix/sysv/linux/getpt.c: Likewise. * sysdeps/unix/sysv/linux/if_index.c: Likewise. * termios/tcgetsid.c: Likewise. * sysdeps/unix/sysv/linux/i386/dl-procinfo.h (x86_cap_flags): Change fxsr to osfxsr. * time/tzfile.c (__tzfile_read): Rewrite to allocate only one memory block. Add function to free memory if wanted. * time/tzset.c (tzset_internal): Pass extra argument to __tzfile_read. * wcsmbs/wcsmbsload.c (to_wc, to_mb): Correct initializers. * wcsmbs/wmemset.c: Little code optimization.
261 lines
6.6 KiB
C
261 lines
6.6 KiB
C
/* Functions to read locale data files.
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Copyright (C) 1996, 1997, 1998, 1999 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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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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#ifdef _POSIX_MAPPED_FILES
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# include <sys/mman.h>
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#endif
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#include <sys/stat.h>
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#include "localeinfo.h"
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static const size_t _nl_category_num_items[] =
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{
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#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
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[category] = _NL_ITEM_INDEX (_NL_NUM_##category),
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#include "categories.def"
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#undef DEFINE_CATEGORY
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};
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#define NO_PAREN(arg, rest...) arg, ##rest
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#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
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static const enum value_type _nl_value_type_##category[] = { NO_PAREN items };
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#define DEFINE_ELEMENT(element, element_name, optstd, type, rest...) \
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[_NL_ITEM_INDEX (element)] = type,
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#include "categories.def"
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#undef DEFINE_CATEGORY
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static const enum value_type *_nl_value_types[] =
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{
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#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
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[category] = _nl_value_type_##category,
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#include "categories.def"
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#undef DEFINE_CATEGORY
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};
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void
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_nl_load_locale (struct loaded_l10nfile *file, int category)
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{
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int fd;
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struct
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{
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unsigned int magic;
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unsigned int nstrings;
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unsigned int strindex[0];
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} *filedata;
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struct stat st;
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struct locale_data *newdata;
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int save_err;
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int swap = 0;
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int mmaped = 1;
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size_t cnt;
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inline unsigned int SWAP (const unsigned int *inw)
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{
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const unsigned char *inc = (const unsigned char *) inw;
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if (!swap)
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return *inw;
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return (inc[3] << 24) | (inc[2] << 16) | (inc[1] << 8) | inc[0];
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}
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file->decided = 1;
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file->data = NULL;
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fd = __open (file->filename, O_RDONLY);
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if (fd < 0)
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/* Cannot open the file. */
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return;
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if (__fstat (fd, &st) < 0)
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goto puntfd;
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if (S_ISDIR (st.st_mode))
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{
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/* LOCALE/LC_foo is a directory; open LOCALE/LC_foo/SYS_LC_foo
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instead. */
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char *newp;
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size_t filenamelen;
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__close (fd);
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filenamelen = strlen (file->filename);
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newp = (char *) alloca (filenamelen
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+ 5 + _nl_category_name_sizes[category] + 1);
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__mempcpy (__mempcpy (__mempcpy (newp, file->filename, filenamelen),
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"/SYS_", 5),
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_nl_category_names[category],
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_nl_category_name_sizes[category] + 1);
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fd = __open (newp, O_RDONLY);
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if (fd < 0)
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return;
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if (__fstat (fd, &st) < 0)
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goto puntfd;
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}
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/* Map in the file's data. */
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save_err = errno;
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#ifdef _POSIX_MAPPED_FILES
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# ifndef MAP_COPY
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/* Linux seems to lack read-only copy-on-write. */
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# define MAP_COPY MAP_PRIVATE
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# endif
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# ifndef MAP_FILE
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/* Some systems do not have this flag; it is superfluous. */
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# define MAP_FILE 0
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# endif
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# ifndef MAP_INHERIT
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/* Some systems might lack this; they lose. */
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# define MAP_INHERIT 0
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# endif
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filedata = (void *) __mmap ((caddr_t) 0, st.st_size, PROT_READ,
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MAP_FILE|MAP_COPY|MAP_INHERIT, fd, 0);
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if ((void *) filedata != MAP_FAILED)
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{
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if (st.st_size < sizeof (*filedata))
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/* This cannot be a locale data file since it's too small. */
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goto puntfd;
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}
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else
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{
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if (errno == ENOSYS)
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{
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#endif /* _POSIX_MAPPED_FILES */
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/* No mmap; allocate a buffer and read from the file. */
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mmaped = 0;
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filedata = malloc (st.st_size);
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if (filedata != NULL)
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{
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off_t to_read = st.st_size;
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ssize_t nread;
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char *p = (char *) filedata;
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while (to_read > 0)
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{
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nread = __read (fd, p, to_read);
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if (nread <= 0)
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{
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free (filedata);
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if (nread == 0)
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__set_errno (EINVAL); /* Bizarreness going on. */
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goto puntfd;
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}
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p += nread;
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to_read -= nread;
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}
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}
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else
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goto puntfd;
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__set_errno (save_err);
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#ifdef _POSIX_MAPPED_FILES
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}
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else
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goto puntfd;
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}
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#endif /* _POSIX_MAPPED_FILES */
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if (filedata->magic == LIMAGIC (category))
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/* Good data file in our byte order. */
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swap = 0;
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else
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{
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/* Try the other byte order. */
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swap = 1;
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if (SWAP (&filedata->magic) != LIMAGIC (category))
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/* Bad data file in either byte order. */
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{
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puntmap:
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#ifdef _POSIX_MAPPED_FILES
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if (mmaped)
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__munmap ((caddr_t) filedata, st.st_size);
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else
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#endif /* _POSIX_MAPPED_FILES */
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free (filedata);
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puntfd:
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__close (fd);
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return;
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}
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}
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#define W(word) SWAP (&(word))
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if (W (filedata->nstrings) < _nl_category_num_items[category] ||
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(sizeof *filedata + W (filedata->nstrings) * sizeof (unsigned int)
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>= (size_t) st.st_size))
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{
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/* Insufficient data. */
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__set_errno (EINVAL);
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goto puntmap;
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}
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newdata = malloc (sizeof *newdata +
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(_nl_category_num_items[category]
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* sizeof (union locale_data_value)));
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if (! newdata)
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goto puntmap;
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newdata->name = NULL; /* This will be filled if necessary in findlocale.c. */
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newdata->filedata = (void *) filedata;
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newdata->filesize = st.st_size;
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newdata->mmaped = mmaped;
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newdata->usage_count = 0;
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newdata->nstrings = _nl_category_num_items[category];
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for (cnt = 0; cnt < newdata->nstrings; ++cnt)
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{
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off_t idx = W (filedata->strindex[cnt]);
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if (idx >= newdata->filesize)
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{
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free (newdata);
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__set_errno (EINVAL);
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goto puntmap;
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}
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if (_nl_value_types[category][cnt] == word)
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newdata->values[cnt].word = W (*((u_int32_t *) (newdata->filedata
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+ idx)));
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else
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newdata->values[cnt].string = newdata->filedata + idx;
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}
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__close (fd);
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file->data = newdata;
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}
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void
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_nl_unload_locale (struct locale_data *locale)
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{
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if (locale->name != NULL)
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free ((void *) locale->name);
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#ifdef _POSIX_MAPPED_FILES
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if (locale->mmaped)
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__munmap ((caddr_t) locale->filedata, locale->filesize);
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else
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#endif
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free ((void *) locale->filedata);
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free (locale);
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}
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