diff options
Diffstat (limited to 'locale/loadlocale.c')
| -rw-r--r-- | locale/loadlocale.c | 194 |
1 files changed, 95 insertions, 99 deletions
diff --git a/locale/loadlocale.c b/locale/loadlocale.c index 68f9c7a48d..93b9e95593 100644 --- a/locale/loadlocale.c +++ b/locale/loadlocale.c @@ -1,6 +1,6 @@ -/* Functions to read locale data files. -Copyright (C) 1995, 1996 Free Software Foundation, Inc. +/* Copyright (C) 1996 Free Software Foundation, Inc. This file is part of the GNU C Library. +Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as @@ -14,20 +14,21 @@ Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If -not, write to the Free Software Foundation, Inc., 675 Mass Ave, -Cambridge, MA 02139, USA. */ +not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ #include <errno.h> #include <fcntl.h> -#include <unistd.h> #include <stdlib.h> #include <string.h> -#include <stdio.h> -#include <sys/stat.h> +#include <unistd.h> #include <sys/mman.h> +#include <sys/stat.h> + #include "localeinfo.h" -const size_t _nl_category_num_items[] = + +static const size_t _nl_category_num_items[] = { #define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \ [category] = _NL_ITEM_INDEX (_NL_NUM_##category), @@ -54,8 +55,8 @@ static const enum value_type *_nl_value_types[] = }; -struct locale_data * -_nl_load_locale (int category, char **name) +void +_nl_load_locale (struct loaded_l10nfile *file, int category) { int fd; struct @@ -66,7 +67,9 @@ _nl_load_locale (int category, char **name) } *filedata; struct stat st; struct locale_data *newdata; + int save_err; int swap = 0; + size_t cnt; inline unsigned int SWAP (const unsigned int *inw) { const unsigned char *inc = (const unsigned char *) inw; @@ -74,98 +77,86 @@ _nl_load_locale (int category, char **name) return *inw; return (inc[3] << 24) | (inc[2] << 16) | (inc[1] << 8) | inc[0]; } - unsigned int i; - if ((*name)[0] == '\0') + file->decided = 1; + file->data = NULL; + + fd = __open (file->filename, O_RDONLY); + if (fd < 0) + /* Cannot open the file. */ + return; + + if (__fstat (fd, &st) < 0) + goto puntfd; + if (S_ISDIR (st.st_mode)) { - *name = getenv ("LC_ALL"); - if (! *name || (*name)[0] == '\0') - *name = getenv (_nl_category_names[category]); - if (! *name || (*name)[0] == '\0') - *name = getenv ("LANG"); - if (! *name || (*name)[0] == '\0') - *name = (char *) "local"; + /* LOCALE/LC_foo is a directory; open LOCALE/LC_foo/SYS_LC_foo + instead. */ + char *newp; + + __close (fd); + + newp = (char *) alloca (strlen (file->filename) + + 5 + _nl_category_name_sizes[category] + 1); + __stpcpy (__stpcpy (__stpcpy (newp, file->filename), "/SYS_"), + _nl_category_names[category]); + + fd = __open (newp, O_RDONLY); + if (fd < 0) + return; + + if (__fstat (fd, &st) < 0) + goto puntfd; } - { - const char *catname = _nl_category_names[category]; - size_t namelen = strlen (*name); - size_t catlen = strlen (catname); - char file[sizeof LOCALE_PATH + 1 + namelen + catlen * 2 + 4]; - if (strchr (*name, '/') != NULL) - sprintf (file, "%s/%s", *name, catname); - else - sprintf (file, "%s/%s/%s", LOCALE_PATH, *name, catname); - fd = __open (file, O_RDONLY); - if (fd < 0) - return NULL; - if (__fstat (fd, &st) < 0) - goto puntfd; - if (S_ISDIR (st.st_mode)) - { - /* LOCALE/LC_foo is a directory; open LOCALE/LC_foo/SYS_LC_foo - instead. */ - __close (fd); - memcpy (stpcpy (strchr (file, '\0'), "SYS_"), catname, catlen); - fd = __open (file, O_RDONLY); - if (fd < 0) - return NULL; - if (__fstat (fd, &st) < 0) - goto puntfd; - } - } - - { - /* Map in the file's data. */ - int save = errno; + /* Map in the file's data. */ + save_err = errno; #ifndef MAP_COPY - /* Linux seems to lack read-only copy-on-write. */ + /* Linux seems to lack read-only copy-on-write. */ #define MAP_COPY MAP_PRIVATE #endif #ifndef MAP_FILE - /* Some systems do not have this flag; it is superfluous. */ + /* Some systems do not have this flag; it is superfluous. */ #define MAP_FILE 0 #endif #ifndef MAP_INHERIT - /* Some systems might lack this; they lose. */ + /* Some systems might lack this; they lose. */ #define MAP_INHERIT 0 #endif - filedata = (void *) __mmap ((caddr_t) 0, st.st_size, - PROT_READ, MAP_FILE|MAP_COPY|MAP_INHERIT, - fd, 0); - if (filedata == (void *) -1) - { - if (errno == ENOSYS) - { - /* No mmap; allocate a buffer and read from the file. */ - filedata = malloc (st.st_size); - if (filedata) - { - off_t to_read = st.st_size; - ssize_t nread; - char *p = (char *) filedata; - while (to_read > 0) - { - nread = __read (fd, p, to_read); - if (nread <= 0) - { - free (filedata); - if (nread == 0) - errno = EINVAL; /* Bizarreness going on. */ - goto puntfd; - } - p += nread; - to_read -= nread; - } - } - else - goto puntfd; - errno = save; - } - else - goto puntfd; - } - } + filedata = (void *) __mmap ((caddr_t) 0, st.st_size, PROT_READ, + MAP_FILE|MAP_COPY|MAP_INHERIT, fd, 0); + if (filedata == (void *) -1) + { + if (errno == ENOSYS) + { + /* No mmap; allocate a buffer and read from the file. */ + filedata = malloc (st.st_size); + if (filedata != NULL) + { + off_t to_read = st.st_size; + ssize_t nread; + char *p = (char *) filedata; + while (to_read > 0) + { + nread = __read (fd, p, to_read); + if (nread <= 0) + { + free (filedata); + if (nread == 0) + errno = EINVAL; /* Bizarreness going on. */ + goto puntfd; + } + p += nread; + to_read -= nread; + } + } + else + goto puntfd; + errno = save_err; + } + else + goto puntfd; + } if (filedata->magic == LIMAGIC (category)) /* Good data file in our byte order. */ @@ -181,7 +172,7 @@ _nl_load_locale (int category, char **name) __munmap ((caddr_t) filedata, st.st_size); puntfd: __close (fd); - return NULL; + return; } } @@ -201,41 +192,46 @@ _nl_load_locale (int category, char **name) if (! newdata) goto puntmap; + newdata->name = NULL; /* This will be filled if necessary in findlocale.c. */ newdata->filedata = (void *) filedata; newdata->filesize = st.st_size; newdata->nstrings = W (filedata->nstrings); - for (i = 0; i < newdata->nstrings; ++i) + for (cnt = 0; cnt < newdata->nstrings; ++cnt) { - unsigned int idx = W (filedata->strindex[i]); + off_t idx = W (filedata->strindex[cnt]); if (idx >= newdata->filesize) { free (newdata); errno = EINVAL; goto puntmap; } - if (_nl_value_types[category][i] == word) - newdata->values[i].word = W (*((u32_t *) (newdata->filedata + idx))); + if (_nl_value_types[category][cnt] == word) + newdata->values[cnt].word = W (*((u_int32_t *) (newdata->filedata + + idx))); else - newdata->values[i].string = newdata->filedata + idx; + newdata->values[cnt].string = newdata->filedata + idx; } __close (fd); - return newdata; + file->data = newdata; } void -_nl_free_locale (struct locale_data *data) +_nl_free_locale (const struct locale_data *data) { int save = errno; - if (! data) + if (data == NULL) /* Ignore a null pointer, like free does. */ return; + if (data->name != NULL) + free ((void *) data->name); if (__munmap ((caddr_t) data->filedata, data->filesize) < 0) { if (errno == ENOSYS) free ((void *) data->filedata); errno = save; } - free (data); + free ((void *) data); } + |