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Diffstat (limited to 'REORG.TODO/catgets/catgets.c')
| -rw-r--r-- | REORG.TODO/catgets/catgets.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/REORG.TODO/catgets/catgets.c b/REORG.TODO/catgets/catgets.c new file mode 100644 index 0000000000..886ed1acce --- /dev/null +++ b/REORG.TODO/catgets/catgets.c @@ -0,0 +1,149 @@ +/* Copyright (C) 1996-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper, <drepper@gnu.org>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <locale.h> +#include <nl_types.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/mman.h> + +#include "catgetsinfo.h" + + +/* Open the catalog and return a descriptor for the catalog. */ +nl_catd +catopen (const char *cat_name, int flag) +{ + __nl_catd result; + const char *env_var = NULL; + const char *nlspath = NULL; + char *tmp = NULL; + + if (strchr (cat_name, '/') == NULL) + { + if (flag == NL_CAT_LOCALE) + /* Use the current locale setting for LC_MESSAGES. */ + env_var = setlocale (LC_MESSAGES, NULL); + else + /* Use the LANG environment variable. */ + env_var = getenv ("LANG"); + + if (env_var == NULL || *env_var == '\0' + || (__libc_enable_secure && strchr (env_var, '/') != NULL)) + env_var = "C"; + + nlspath = getenv ("NLSPATH"); + if (nlspath != NULL && *nlspath != '\0') + { + /* Append the system dependent directory. */ + size_t len = strlen (nlspath) + 1 + sizeof NLSPATH; + tmp = malloc (len); + + if (__glibc_unlikely (tmp == NULL)) + return (nl_catd) -1; + + __stpcpy (__stpcpy (__stpcpy (tmp, nlspath), ":"), NLSPATH); + nlspath = tmp; + } + else + nlspath = NLSPATH; + } + + result = (__nl_catd) malloc (sizeof (*result)); + if (result == NULL) + { + /* We cannot get enough memory. */ + result = (nl_catd) -1; + } + else if (__open_catalog (cat_name, nlspath, env_var, result) != 0) + { + /* Couldn't open the file. */ + free ((void *) result); + result = (nl_catd) -1; + } + + free (tmp); + return (nl_catd) result; +} + + +/* Return message from message catalog. */ +char * +catgets (nl_catd catalog_desc, int set, int message, const char *string) +{ + __nl_catd catalog; + size_t idx; + size_t cnt; + + /* Be generous if catalog which failed to be open is used. */ + if (catalog_desc == (nl_catd) -1 || ++set <= 0 || message < 0) + return (char *) string; + + catalog = (__nl_catd) catalog_desc; + + idx = ((set * message) % catalog->plane_size) * 3; + cnt = 0; + do + { + if (catalog->name_ptr[idx + 0] == (u_int32_t) set + && catalog->name_ptr[idx + 1] == (u_int32_t) message) + return (char *) &catalog->strings[catalog->name_ptr[idx + 2]]; + + idx += catalog->plane_size * 3; + } + while (++cnt < catalog->plane_depth); + + __set_errno (ENOMSG); + return (char *) string; +} + + +/* Return resources used for loaded message catalog. */ +int +catclose (nl_catd catalog_desc) +{ + __nl_catd catalog; + + /* Be generous if catalog which failed to be open is used. */ + if (catalog_desc == (nl_catd) -1) + { + __set_errno (EBADF); + return -1; + } + + catalog = (__nl_catd) catalog_desc; + +#ifdef _POSIX_MAPPED_FILES + if (catalog->status == mmapped) + __munmap ((void *) catalog->file_ptr, catalog->file_size); + else +#endif /* _POSIX_MAPPED_FILES */ + if (catalog->status == malloced) + free ((void *) catalog->file_ptr); + else + { + __set_errno (EBADF); + return -1; + } + + free ((void *) catalog); + + return 0; +} |