| /* Implementation of the locale program according to POSIX 9945-2. |
| Copyright (C) 1995-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Ulrich Drepper <drepper@cygnus.com>, 1995. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published |
| by the Free Software Foundation; version 2 of the License, or |
| (at your option) any later version. |
| |
| This program 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 General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, see <http://www.gnu.org/licenses/>. */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #include <argp.h> |
| #include <argz.h> |
| #include <dirent.h> |
| #include <errno.h> |
| #include <error.h> |
| #include <fcntl.h> |
| #include <langinfo.h> |
| #include <libintl.h> |
| #include <limits.h> |
| #include <locale.h> |
| #include <search.h> |
| #include <stdio.h> |
| #include <stdio_ext.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <stdint.h> |
| #include <sys/mman.h> |
| #include <sys/stat.h> |
| |
| #include "record-status.h" |
| #include "localeinfo.h" |
| #include "charmap-dir.h" |
| #include "../locarchive.h" |
| #include <programs/xmalloc.h> |
| |
| #define ARCHIVE_NAME COMPLOCALEDIR "/locale-archive" |
| |
| /* If set print the name of the category. */ |
| static int show_category_name; |
| |
| /* If set print the name of the item. */ |
| static int show_keyword_name; |
| |
| /* Print names of all available locales. */ |
| static int do_all; |
| |
| /* Print names of all available character maps. */ |
| static int do_charmaps = 0; |
| |
| /* Name and version of program. */ |
| static void print_version (FILE *stream, struct argp_state *state); |
| void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; |
| |
| /* Definitions of arguments for argp functions. */ |
| static const struct argp_option options[] = |
| { |
| { NULL, 0, NULL, 0, N_("System information:") }, |
| { "all-locales", 'a', NULL, OPTION_NO_USAGE, |
| N_("Write names of available locales") }, |
| { "charmaps", 'm', NULL, OPTION_NO_USAGE, |
| N_("Write names of available charmaps") }, |
| { NULL, 0, NULL, 0, N_("Modify output format:") }, |
| { "category-name", 'c', NULL, 0, N_("Write names of selected categories") }, |
| { "keyword-name", 'k', NULL, 0, N_("Write names of selected keywords") }, |
| { "verbose", 'v', NULL, 0, N_("Print more information") }, |
| { NULL, 0, NULL, 0, NULL } |
| }; |
| |
| /* Short description of program. */ |
| static const char doc[] = N_("Get locale-specific information."); |
| |
| /* Strings for arguments in help texts. */ |
| static const char args_doc[] = N_("NAME\n[-a|-m]"); |
| |
| /* Prototype for option handler. */ |
| static error_t parse_opt (int key, char *arg, struct argp_state *state); |
| |
| /* Function to print some extra text in the help message. */ |
| static char *more_help (int key, const char *text, void *input); |
| |
| /* Data structure to communicate with argp functions. */ |
| static struct argp argp = |
| { |
| options, parse_opt, args_doc, doc, NULL, more_help |
| }; |
| |
| |
| /* We don't have these constants defined because we don't use them. Give |
| default values. */ |
| #define CTYPE_MB_CUR_MIN 0 |
| #define CTYPE_MB_CUR_MAX 0 |
| #define CTYPE_HASH_SIZE 0 |
| #define CTYPE_HASH_LAYERS 0 |
| #define CTYPE_CLASS 0 |
| #define CTYPE_TOUPPER_EB 0 |
| #define CTYPE_TOLOWER_EB 0 |
| #define CTYPE_TOUPPER_EL 0 |
| #define CTYPE_TOLOWER_EL 0 |
| |
| /* Definition of the data structure which represents a category and its |
| items. */ |
| struct category |
| { |
| int cat_id; |
| const char *name; |
| size_t number; |
| struct cat_item |
| { |
| int item_id; |
| const char *name; |
| enum { std, opt } status; |
| enum value_type value_type; |
| int min; |
| int max; |
| } *item_desc; |
| }; |
| |
| /* Simple helper macro. */ |
| #define NELEMS(arr) ((sizeof (arr)) / (sizeof (arr[0]))) |
| |
| /* For some tricky stuff. */ |
| #define NO_PAREN(Item, More...) Item, ## More |
| |
| /* We have all categories defined in `categories.def'. Now construct |
| the description and data structure used for all categories. */ |
| #define DEFINE_ELEMENT(Item, More...) { Item, ## More }, |
| #define DEFINE_CATEGORY(category, name, items, postload) \ |
| static struct cat_item category##_desc[] = \ |
| { \ |
| NO_PAREN items \ |
| }; |
| |
| #include "categories.def" |
| #undef DEFINE_CATEGORY |
| |
| static struct category category[] = |
| { |
| #define DEFINE_CATEGORY(category, name, items, postload) \ |
| [category] = { _NL_NUM_##category, name, NELEMS (category##_desc), \ |
| category##_desc }, |
| #include "categories.def" |
| #undef DEFINE_CATEGORY |
| }; |
| #define NCATEGORIES NELEMS (category) |
| |
| |
| /* Automatically set variable. */ |
| extern const char *__progname; |
| |
| /* helper function for extended name handling. */ |
| extern void locale_special (const char *name, int show_category_name, |
| int show_keyword_name); |
| |
| /* Prototypes for local functions. */ |
| static void print_LC_IDENTIFICATION (void *mapped, size_t size); |
| static void print_LC_CTYPE (void *mapped, size_t size); |
| static void write_locales (void); |
| static int nameentcmp (const void *a, const void *b); |
| static int write_archive_locales (void **all_datap, char *linebuf); |
| static void write_charmaps (void); |
| static void show_locale_vars (void); |
| static void show_info (const char *name); |
| |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| int remaining; |
| |
| /* Set initial values for global variables. */ |
| show_category_name = 0; |
| show_keyword_name = 0; |
| |
| /* Set locale. Do not set LC_ALL because the other categories must |
| not be affected (according to POSIX.2). */ |
| if (setlocale (LC_CTYPE, "") == NULL) |
| error (0, errno, gettext ("Cannot set LC_CTYPE to default locale")); |
| if (setlocale (LC_MESSAGES, "") == NULL) |
| error (0, errno, gettext ("Cannot set LC_MESSAGES to default locale")); |
| |
| /* Initialize the message catalog. */ |
| textdomain (PACKAGE); |
| |
| /* Parse and process arguments. */ |
| argp_parse (&argp, argc, argv, 0, &remaining, NULL); |
| |
| /* `-a' requests the names of all available locales. */ |
| if (do_all != 0) |
| { |
| if (setlocale (LC_COLLATE, "") == NULL) |
| error (0, errno, |
| gettext ("Cannot set LC_COLLATE to default locale")); |
| write_locales (); |
| exit (EXIT_SUCCESS); |
| } |
| |
| /* `m' requests the names of all available charmaps. The names can be |
| used for the -f argument to localedef(1). */ |
| if (do_charmaps != 0) |
| { |
| write_charmaps (); |
| exit (EXIT_SUCCESS); |
| } |
| |
| /* Specific information about the current locale are requested. |
| Change to this locale now. */ |
| if (setlocale (LC_ALL, "") == NULL) |
| error (0, errno, gettext ("Cannot set LC_ALL to default locale")); |
| |
| /* If no real argument is given we have to print the contents of the |
| current locale definition variables. These are LANG and the LC_*. */ |
| if (remaining == argc && show_keyword_name == 0 && show_category_name == 0) |
| { |
| show_locale_vars (); |
| exit (EXIT_SUCCESS); |
| } |
| |
| /* Process all given names. */ |
| while (remaining < argc) |
| show_info (argv[remaining++]); |
| |
| exit (EXIT_SUCCESS); |
| } |
| |
| |
| /* Handle program arguments. */ |
| static error_t |
| parse_opt (int key, char *arg, struct argp_state *state) |
| { |
| switch (key) |
| { |
| case 'a': |
| do_all = 1; |
| break; |
| case 'c': |
| show_category_name = 1; |
| break; |
| case 'm': |
| do_charmaps = 1; |
| break; |
| case 'k': |
| show_keyword_name = 1; |
| break; |
| case 'v': |
| verbose = 1; |
| break; |
| default: |
| return ARGP_ERR_UNKNOWN; |
| } |
| return 0; |
| } |
| |
| |
| static char * |
| more_help (int key, const char *text, void *input) |
| { |
| char *tp = NULL; |
| switch (key) |
| { |
| case ARGP_KEY_HELP_EXTRA: |
| /* We print some extra information. */ |
| if (asprintf (&tp, gettext ("\ |
| For bug reporting instructions, please see:\n\ |
| %s.\n"), REPORT_BUGS_TO) < 0) |
| return NULL; |
| return tp; |
| default: |
| break; |
| } |
| return (char *) text; |
| } |
| |
| |
| /* Print the version information. */ |
| static void |
| print_version (FILE *stream, struct argp_state *state) |
| { |
| fprintf (stream, "locale %s%s\n", PKGVERSION, VERSION); |
| fprintf (stream, gettext ("\ |
| Copyright (C) %s Free Software Foundation, Inc.\n\ |
| This is free software; see the source for copying conditions. There is NO\n\ |
| warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ |
| "), "2018"); |
| fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); |
| } |
| |
| |
| /* Simple action function which prints arguments as strings. */ |
| static void |
| print_names (const void *nodep, VISIT value, int level) |
| { |
| if (value == postorder || value == leaf) |
| puts (*(char **) nodep); |
| } |
| |
| |
| static int |
| select_dirs (const struct dirent *dirent) |
| { |
| int result = 0; |
| |
| if (strcmp (dirent->d_name, ".") != 0 && strcmp (dirent->d_name, "..") != 0) |
| { |
| mode_t mode = 0; |
| |
| if (dirent->d_type != DT_UNKNOWN && dirent->d_type != DT_LNK) |
| mode = DTTOIF (dirent->d_type); |
| else |
| { |
| struct stat64 st; |
| char buf[sizeof (COMPLOCALEDIR) |
| + strlen (dirent->d_name) + 1]; |
| |
| stpcpy (stpcpy (stpcpy (buf, COMPLOCALEDIR), "/"), |
| dirent->d_name); |
| |
| if (stat64 (buf, &st) == 0) |
| mode = st.st_mode; |
| } |
| |
| result = S_ISDIR (mode); |
| } |
| |
| return result; |
| } |
| |
| |
| static void |
| print_LC_IDENTIFICATION (void *mapped, size_t size) |
| { |
| /* Read the information from the file. */ |
| struct |
| { |
| unsigned int magic; |
| unsigned int nstrings; |
| unsigned int strindex[0]; |
| } *filedata = mapped; |
| |
| if (filedata->magic == LIMAGIC (LC_IDENTIFICATION) |
| && (sizeof *filedata |
| + (filedata->nstrings |
| * sizeof (unsigned int)) |
| <= size)) |
| { |
| const char *str; |
| |
| #define HANDLE(idx, name) \ |
| str = ((char *) mapped \ |
| + filedata->strindex[_NL_ITEM_INDEX (_NL_IDENTIFICATION_##idx)]); \ |
| if (*str != '\0') \ |
| printf ("%9s | %s\n", name, str) |
| HANDLE (TITLE, "title"); |
| HANDLE (SOURCE, "source"); |
| HANDLE (ADDRESS, "address"); |
| HANDLE (CONTACT, "contact"); |
| HANDLE (EMAIL, "email"); |
| HANDLE (TEL, "telephone"); |
| HANDLE (FAX, "fax"); |
| HANDLE (LANGUAGE, "language"); |
| HANDLE (TERRITORY, "territory"); |
| HANDLE (AUDIENCE, "audience"); |
| HANDLE (APPLICATION, "application"); |
| HANDLE (ABBREVIATION, "abbreviation"); |
| HANDLE (REVISION, "revision"); |
| HANDLE (DATE, "date"); |
| } |
| } |
| |
| |
| static void |
| print_LC_CTYPE (void *mapped, size_t size) |
| { |
| struct |
| { |
| unsigned int magic; |
| unsigned int nstrings; |
| unsigned int strindex[0]; |
| } *filedata = mapped; |
| |
| if (filedata->magic == LIMAGIC (LC_CTYPE) |
| && (sizeof *filedata |
| + (filedata->nstrings |
| * sizeof (unsigned int)) |
| <= size)) |
| { |
| const char *str; |
| |
| str = ((char *) mapped |
| + filedata->strindex[_NL_ITEM_INDEX (_NL_CTYPE_CODESET_NAME)]); |
| if (*str != '\0') |
| printf (" codeset | %s\n", str); |
| } |
| } |
| |
| |
| /* Write the names of all available locales to stdout. We have some |
| sources of the information: the contents of the locale directory |
| and the locale.alias file. To avoid duplicates and print the |
| result is a reasonable order we put all entries is a search tree |
| and print them afterwards. */ |
| static void |
| write_locales (void) |
| { |
| char linebuf[80]; |
| void *all_data = NULL; |
| struct dirent **dirents; |
| int ndirents; |
| int cnt; |
| char *alias_path; |
| size_t alias_path_len; |
| char *entry; |
| int first_locale = 1; |
| |
| #define PUT(name) tsearch (name, &all_data, \ |
| (int (*) (const void *, const void *)) strcoll) |
| #define GET(name) tfind (name, &all_data, \ |
| (int (*) (const void *, const void *)) strcoll) |
| |
| /* `POSIX' locale is always available (POSIX.2 4.34.3). */ |
| PUT ("POSIX"); |
| /* And so is the "C" locale. */ |
| PUT ("C"); |
| |
| memset (linebuf, '-', sizeof (linebuf) - 1); |
| linebuf[sizeof (linebuf) - 1] = '\0'; |
| |
| /* First scan the locale archive. */ |
| if (write_archive_locales (&all_data, linebuf)) |
| first_locale = 0; |
| |
| /* Now we can look for all files in the directory. */ |
| ndirents = scandir (COMPLOCALEDIR, &dirents, select_dirs, |
| alphasort); |
| for (cnt = 0; cnt < ndirents; ++cnt) |
| { |
| /* Test whether at least the LC_CTYPE data is there. Some |
| directories only contain translations. */ |
| char buf[sizeof (COMPLOCALEDIR) |
| + strlen (dirents[cnt]->d_name) |
| + sizeof "/LC_IDENTIFICATION"]; |
| char *enddir; |
| struct stat64 st; |
| |
| stpcpy (enddir = stpcpy (stpcpy (stpcpy (buf, |
| COMPLOCALEDIR), |
| "/"), |
| dirents[cnt]->d_name), |
| "/LC_IDENTIFICATION"); |
| |
| if (stat64 (buf, &st) == 0 && S_ISREG (st.st_mode)) |
| { |
| if (verbose && GET (dirents[cnt]->d_name) == NULL) |
| { |
| /* Provide some nice output of all kinds of |
| information. */ |
| int fd; |
| |
| if (! first_locale) |
| putchar_unlocked ('\n'); |
| first_locale = 0; |
| |
| printf ("locale: %-15.15s directory: %.*s\n%s\n", |
| dirents[cnt]->d_name, (int) (enddir - buf), buf, |
| linebuf); |
| |
| fd = open64 (buf, O_RDONLY); |
| if (fd != -1) |
| { |
| void *mapped = mmap64 (NULL, st.st_size, PROT_READ, |
| MAP_SHARED, fd, 0); |
| if (mapped != MAP_FAILED) |
| { |
| print_LC_IDENTIFICATION (mapped, st.st_size); |
| |
| munmap (mapped, st.st_size); |
| } |
| |
| close (fd); |
| |
| /* Now try to get the charset information. */ |
| strcpy (enddir, "/LC_CTYPE"); |
| fd = open64 (buf, O_RDONLY); |
| if (fd != -1 && fstat64 (fd, &st) >= 0 |
| && ((mapped = mmap64 (NULL, st.st_size, PROT_READ, |
| MAP_SHARED, fd, 0)) |
| != MAP_FAILED)) |
| { |
| print_LC_CTYPE (mapped, st.st_size); |
| |
| munmap (mapped, st.st_size); |
| } |
| |
| if (fd != -1) |
| close (fd); |
| } |
| } |
| |
| /* If the verbose format is not selected we simply |
| collect the names. */ |
| PUT (xstrdup (dirents[cnt]->d_name)); |
| } |
| } |
| if (ndirents > 0) |
| free (dirents); |
| |
| /* Now read the locale.alias files. */ |
| if (argz_create_sep (LOCALE_ALIAS_PATH, ':', &alias_path, &alias_path_len)) |
| error (1, errno, gettext ("while preparing output")); |
| |
| entry = NULL; |
| while ((entry = argz_next (alias_path, alias_path_len, entry))) |
| { |
| static const char aliasfile[] = "/locale.alias"; |
| FILE *fp; |
| char full_name[strlen (entry) + sizeof aliasfile]; |
| |
| stpcpy (stpcpy (full_name, entry), aliasfile); |
| fp = fopen (full_name, "rm"); |
| if (fp == NULL) |
| /* Ignore non-existing files. */ |
| continue; |
| |
| /* No threads present. */ |
| __fsetlocking (fp, FSETLOCKING_BYCALLER); |
| |
| while (! feof_unlocked (fp)) |
| { |
| /* It is a reasonable approach to use a fix buffer here |
| because |
| a) we are only interested in the first two fields |
| b) these fields must be usable as file names and so must |
| not be that long */ |
| char buf[BUFSIZ]; |
| char *alias; |
| char *value; |
| char *cp; |
| |
| if (fgets_unlocked (buf, BUFSIZ, fp) == NULL) |
| /* EOF reached. */ |
| break; |
| |
| cp = buf; |
| /* Ignore leading white space. */ |
| while (isspace (cp[0]) && cp[0] != '\n') |
| ++cp; |
| |
| /* A leading '#' signals a comment line. */ |
| if (cp[0] != '\0' && cp[0] != '#' && cp[0] != '\n') |
| { |
| alias = cp++; |
| while (cp[0] != '\0' && !isspace (cp[0])) |
| ++cp; |
| /* Terminate alias name. */ |
| if (cp[0] != '\0') |
| *cp++ = '\0'; |
| |
| /* Now look for the beginning of the value. */ |
| while (isspace (cp[0])) |
| ++cp; |
| |
| if (cp[0] != '\0') |
| { |
| value = cp++; |
| while (cp[0] != '\0' && !isspace (cp[0])) |
| ++cp; |
| /* Terminate value. */ |
| if (cp[0] == '\n') |
| { |
| /* This has to be done to make the following |
| test for the end of line possible. We are |
| looking for the terminating '\n' which do not |
| overwrite here. */ |
| *cp++ = '\0'; |
| *cp = '\n'; |
| } |
| else if (cp[0] != '\0') |
| *cp++ = '\0'; |
| |
| /* Add the alias. */ |
| if (! verbose && GET (value) != NULL) |
| PUT (xstrdup (alias)); |
| } |
| } |
| |
| /* Possibly not the whole line fits into the buffer. |
| Ignore the rest of the line. */ |
| while (strchr (cp, '\n') == NULL) |
| { |
| cp = buf; |
| if (fgets_unlocked (buf, BUFSIZ, fp) == NULL) |
| /* Make sure the inner loop will be left. The outer |
| loop will exit at the `feof' test. */ |
| *cp = '\n'; |
| } |
| } |
| |
| fclose (fp); |
| } |
| |
| if (! verbose) |
| { |
| twalk (all_data, print_names); |
| } |
| } |
| |
| |
| struct nameent |
| { |
| char *name; |
| uint32_t locrec_offset; |
| }; |
| |
| |
| static int |
| nameentcmp (const void *a, const void *b) |
| { |
| return strcoll (((const struct nameent *) a)->name, |
| ((const struct nameent *) b)->name); |
| } |
| |
| |
| static int |
| write_archive_locales (void **all_datap, char *linebuf) |
| { |
| struct stat64 st; |
| void *all_data = *all_datap; |
| size_t len = 0; |
| struct locarhead *head; |
| struct namehashent *namehashtab; |
| char *addr = MAP_FAILED; |
| int fd, ret = 0; |
| uint32_t cnt; |
| |
| fd = open64 (ARCHIVE_NAME, O_RDONLY); |
| if (fd < 0) |
| return 0; |
| |
| if (fstat64 (fd, &st) < 0 || st.st_size < sizeof (*head)) |
| goto error_out; |
| |
| len = st.st_size; |
| addr = mmap64 (NULL, len, PROT_READ, MAP_SHARED, fd, 0); |
| if (addr == MAP_FAILED) |
| goto error_out; |
| |
| head = (struct locarhead *) addr; |
| if (head->namehash_offset + head->namehash_size > len |
| || head->string_offset + head->string_size > len |
| || head->locrectab_offset + head->locrectab_size > len |
| || head->sumhash_offset + head->sumhash_size > len) |
| goto error_out; |
| |
| namehashtab = (struct namehashent *) (addr + head->namehash_offset); |
| if (! verbose) |
| { |
| for (cnt = 0; cnt < head->namehash_size; ++cnt) |
| if (namehashtab[cnt].locrec_offset != 0) |
| { |
| PUT (xstrdup (addr + namehashtab[cnt].name_offset)); |
| ++ret; |
| } |
| } |
| else |
| { |
| struct nameent *names; |
| uint32_t used; |
| |
| names = (struct nameent *) xmalloc (head->namehash_used |
| * sizeof (struct nameent)); |
| for (cnt = used = 0; cnt < head->namehash_size; ++cnt) |
| if (namehashtab[cnt].locrec_offset != 0) |
| { |
| names[used].name = addr + namehashtab[cnt].name_offset; |
| names[used++].locrec_offset = namehashtab[cnt].locrec_offset; |
| } |
| |
| /* Sort the names. */ |
| qsort (names, used, sizeof (struct nameent), nameentcmp); |
| |
| for (cnt = 0; cnt < used; ++cnt) |
| { |
| struct locrecent *locrec; |
| |
| PUT (xstrdup (names[cnt].name)); |
| |
| if (cnt) |
| putchar_unlocked ('\n'); |
| |
| printf ("locale: %-15.15s archive: " ARCHIVE_NAME "\n%s\n", |
| names[cnt].name, linebuf); |
| |
| locrec = (struct locrecent *) (addr + names[cnt].locrec_offset); |
| |
| print_LC_IDENTIFICATION (addr |
| + locrec->record[LC_IDENTIFICATION].offset, |
| locrec->record[LC_IDENTIFICATION].len); |
| |
| print_LC_CTYPE (addr + locrec->record[LC_CTYPE].offset, |
| locrec->record[LC_CTYPE].len); |
| } |
| |
| ret = used; |
| } |
| |
| error_out: |
| if (addr != MAP_FAILED) |
| munmap (addr, len); |
| close (fd); |
| *all_datap = all_data; |
| return ret; |
| } |
| |
| |
| /* Write the names of all available character maps to stdout. */ |
| static void |
| write_charmaps (void) |
| { |
| void *all_data = NULL; |
| CHARMAP_DIR *dir; |
| const char *dirent; |
| |
| /* Look for all files in the charmap directory. */ |
| dir = charmap_opendir (CHARMAP_PATH); |
| if (dir == NULL) |
| return; |
| |
| while ((dirent = charmap_readdir (dir)) != NULL) |
| { |
| char **aliases; |
| char **p; |
| |
| PUT (xstrdup (dirent)); |
| |
| aliases = charmap_aliases (CHARMAP_PATH, dirent); |
| |
| #if 0 |
| /* Add the code_set_name and the aliases. */ |
| for (p = aliases; *p; p++) |
| PUT (xstrdup (*p)); |
| #else |
| /* Add the code_set_name only. Most aliases are obsolete. */ |
| p = aliases; |
| if (*p) |
| PUT (xstrdup (*p)); |
| #endif |
| |
| charmap_free_aliases (aliases); |
| } |
| |
| charmap_closedir (dir); |
| |
| twalk (all_data, print_names); |
| } |
| |
| /* Print a properly quoted assignment of NAME with VAL, using double |
| quotes iff DQUOTE is true. */ |
| static void |
| print_assignment (const char *name, const char *val, bool dquote) |
| { |
| printf ("%s=", name); |
| if (dquote) |
| putchar ('"'); |
| while (*val != '\0') |
| { |
| size_t segment |
| = strcspn (val, dquote ? "$`\"\\" : "~|&;<>()$`\\\"' \t\n"); |
| printf ("%.*s", (int) segment, val); |
| val += segment; |
| if (*val == '\0') |
| break; |
| putchar ('\\'); |
| putchar (*val++); |
| } |
| if (dquote) |
| putchar ('"'); |
| putchar ('\n'); |
| } |
| |
| /* We have to show the contents of the environments determining the |
| locale. */ |
| static void |
| show_locale_vars (void) |
| { |
| const char *lcall = getenv ("LC_ALL") ?: ""; |
| const char *lang = getenv ("LANG") ?: ""; |
| |
| /* LANG has to be the first value. */ |
| print_assignment ("LANG", lang, false); |
| |
| /* Now all categories in an unspecified order. */ |
| for (size_t cat_no = 0; cat_no < NCATEGORIES; ++cat_no) |
| if (cat_no != LC_ALL) |
| { |
| const char *name = category[cat_no].name; |
| const char *val = getenv (name); |
| |
| if (lcall[0] != '\0' || val == NULL) |
| print_assignment (name, |
| lcall[0] != '\0' ? lcall |
| : lang[0] != '\0' ? lang |
| : "POSIX", |
| true); |
| else |
| print_assignment (name, val, false); |
| } |
| |
| /* The last is the LC_ALL value. */ |
| print_assignment ("LC_ALL", lcall, false); |
| } |
| |
| |
| /* Subroutine of show_info, below. */ |
| static void |
| print_item (struct cat_item *item) |
| { |
| switch (item->value_type) |
| { |
| case string: |
| if (show_keyword_name) |
| printf ("%s=\"", item->name); |
| fputs (nl_langinfo (item->item_id) ? : "", stdout); |
| if (show_keyword_name) |
| putchar ('"'); |
| putchar ('\n'); |
| break; |
| case stringarray: |
| { |
| const char *val; |
| int cnt; |
| |
| if (show_keyword_name) |
| printf ("%s=\"", item->name); |
| |
| for (cnt = 0; cnt < item->max - 1; ++cnt) |
| { |
| val = nl_langinfo (item->item_id + cnt); |
| if (val != NULL) |
| fputs (val, stdout); |
| putchar (';'); |
| } |
| |
| val = nl_langinfo (item->item_id + cnt); |
| if (val != NULL) |
| fputs (val, stdout); |
| |
| if (show_keyword_name) |
| putchar ('"'); |
| putchar ('\n'); |
| } |
| break; |
| case stringlist: |
| { |
| int first = 1; |
| const char *val = nl_langinfo (item->item_id) ? : ""; |
| |
| if (show_keyword_name) |
| printf ("%s=", item->name); |
| |
| for (int cnt = 0; cnt < item->max && *val != '\0'; ++cnt) |
| { |
| printf ("%s%s%s%s", first ? "" : ";", |
| show_keyword_name ? "\"" : "", val, |
| show_keyword_name ? "\"" : ""); |
| val = strchr (val, '\0') + 1; |
| first = 0; |
| } |
| putchar ('\n'); |
| } |
| break; |
| case byte: |
| { |
| const char *val = nl_langinfo (item->item_id); |
| |
| if (show_keyword_name) |
| printf ("%s=", item->name); |
| |
| if (val != NULL) |
| printf ("%d", *val == '\377' ? -1 : *val); |
| putchar ('\n'); |
| } |
| break; |
| case bytearray: |
| { |
| const char *val = nl_langinfo (item->item_id); |
| int cnt = val ? strlen (val) : 0; |
| |
| if (show_keyword_name) |
| printf ("%s=", item->name); |
| |
| while (cnt > 1) |
| { |
| printf ("%d;", *val == '\177' ? -1 : *val); |
| --cnt; |
| ++val; |
| } |
| |
| printf ("%d\n", cnt == 0 || *val == '\177' ? -1 : *val); |
| } |
| break; |
| case word: |
| { |
| union { unsigned int word; char *string; } val; |
| val.string = nl_langinfo (item->item_id); |
| if (show_keyword_name) |
| printf ("%s=", item->name); |
| |
| printf ("%d\n", val.word); |
| } |
| break; |
| case wordarray: |
| { |
| int first = 1; |
| union { unsigned int *wordarray; char *string; } val; |
| |
| val.string = nl_langinfo (item->item_id); |
| if (show_keyword_name) |
| printf ("%s=", item->name); |
| |
| for (int cnt = 0; cnt < item->max; ++cnt) |
| { |
| printf ("%s%d", first ? "" : ";", val.wordarray[cnt]); |
| first = 0; |
| } |
| putchar ('\n'); |
| } |
| break; |
| case wstring: |
| case wstringarray: |
| case wstringlist: |
| /* We don't print wide character information since the same |
| information is available in a multibyte string. */ |
| default: |
| break; |
| } |
| } |
| |
| /* Show the information request for NAME. */ |
| static void |
| show_info (const char *name) |
| { |
| for (size_t cat_no = 0; cat_no < NCATEGORIES; ++cat_no) |
| if (cat_no != LC_ALL) |
| { |
| if (strcmp (name, category[cat_no].name) == 0) |
| /* Print the whole category. */ |
| { |
| if (show_category_name != 0) |
| puts (category[cat_no].name); |
| |
| for (size_t item_no = 0; |
| item_no < category[cat_no].number; |
| ++item_no) |
| print_item (&category[cat_no].item_desc[item_no]); |
| |
| return; |
| } |
| |
| for (size_t item_no = 0; item_no < category[cat_no].number; ++item_no) |
| if (strcmp (name, category[cat_no].item_desc[item_no].name) == 0) |
| { |
| if (show_category_name != 0) |
| puts (category[cat_no].name); |
| |
| print_item (&category[cat_no].item_desc[item_no]); |
| return; |
| } |
| } |
| |
| /* The name is not a standard one. |
| For testing and perhaps advanced use allow some more symbols. */ |
| locale_special (name, show_category_name, show_keyword_name); |
| } |