/* Implementation of the locale program according to POSIX 9945-2. Copyright (C) 1995-2021 Free Software Foundation, Inc. This file is part of the GNU C Library. 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 . */ #ifdef HAVE_CONFIG_H # include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "record-status.h" #include "localeinfo.h" #include "charmap-dir.h" #include "../locarchive.h" #include #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); static void try_setlocale (int category, const char *category_name); static char *quote_string (const char *input); static void setlocale_diagnostics (void); 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). */ try_setlocale (LC_CTYPE, "LC_CTYPE"); try_setlocale (LC_MESSAGES, "LC_MESSAGES"); /* 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) { setlocale_diagnostics (); try_setlocale (LC_COLLATE, "LC_COLLATE"); 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) { setlocale_diagnostics (); write_charmaps (); exit (EXIT_SUCCESS); } /* Specific information about the current locale are requested. Change to this locale now. */ try_setlocale (LC_ALL, "LC_ALL"); setlocale_diagnostics (); /* 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\ "), "2021"); 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); } free (names); 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); } /* Set to true by try_setlocale if setlocale fails. Used by setlocale_diagnostics. */ static bool setlocale_failed; /* Call setlocale, with non-fatal error reporting. */ static void try_setlocale (int category, const char *category_name) { if (setlocale (category, "") == NULL) { error (0, errno, gettext ("Cannot set %s to default locale"), category_name); setlocale_failed = true; } } /* Return a quoted version of the passed string, or NULL on error. */ static char * quote_string (const char *input) { char *buffer; size_t length; FILE *stream = open_memstream (&buffer, &length); if (stream == NULL) return NULL; while (true) { unsigned char ch = *input++; if (ch == '\0') break; /* Use C backslash escapes for those control characters for which they are defined. */ switch (ch) { case '\a': putc_unlocked ('\\', stream); putc_unlocked ('a', stream); break; case '\b': putc_unlocked ('\\', stream); putc_unlocked ('b', stream); break; case '\f': putc_unlocked ('\\', stream); putc_unlocked ('f', stream); break; case '\n': putc_unlocked ('\\', stream); putc_unlocked ('n', stream); break; case '\r': putc_unlocked ('\\', stream); putc_unlocked ('r', stream); break; case '\t': putc_unlocked ('\\', stream); putc_unlocked ('t', stream); break; case '\v': putc_unlocked ('\\', stream); putc_unlocked ('v', stream); break; case '\\': case '\'': case '\"': putc_unlocked ('\\', stream); putc_unlocked (ch, stream); break; default: if (ch < ' ' || ch > '~') /* Use octal sequences because they are fixed width, unlike hexadecimal sequences. */ fprintf (stream, "\\%03o", ch); else putc_unlocked (ch, stream); } } if (ferror (stream)) { fclose (stream); free (buffer); return NULL; } if (fclose (stream) != 0) { free (buffer); return NULL; } return buffer; } /* Print additional information if there was a setlocale error (during try_setlocale). */ static void setlocale_diagnostics (void) { if (setlocale_failed) { const char *locpath = getenv ("LOCPATH"); if (locpath != NULL) { char *quoted = quote_string (locpath); if (quoted != NULL) fprintf (stderr, gettext ("\ warning: The LOCPATH variable is set to \"%s\"\n"), quoted); else fputs ("warning: The LOCPATH variable is set\n", stderr); free (quoted); } } }