/* Copyright (C) 1995, 1996 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper, . 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 published by the Free Software Foundation; either version 2 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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H # include #endif #include #include #include #include #include #include #include #include #include #include #include #include "error.h" #include "charset.h" #include "locfile.h" /* Undefine the following line in the production version. */ /* #define NDEBUG 1 */ #include /* List of locale definition files which are used in `copy' instructions. */ struct copy_def_list_t { struct copy_def_list_t *next; const char *name; int mask; struct localedef_t *locale; struct { void *data; size_t len; } binary[6]; }; /* List of copied locales. */ struct copy_def_list_t *copy_list; /* If this is defined be POSIX conform. */ int posix_conformance; /* Name of the running program. */ const char *program_name; /* If not zero give a lot more messages. */ int verbose; /* Long options. */ static const struct option long_options[] = { { "charmap", required_argument, NULL, 'f' }, { "code-set-name", required_argument, NULL, 'u' }, { "help", no_argument, NULL, 'h' }, { "force", no_argument, NULL, 'c' }, { "inputfile", required_argument, NULL, 'i' }, { "posix", no_argument, &posix_conformance, 1 }, { "verbose", no_argument, &verbose, 1}, { "version", no_argument, NULL, 'V' }, { NULL, 0, NULL, 0 } }; /* Prototypes for global functions. */ void *xmalloc (size_t __n); /* Prototypes for local functions. */ static void usage (int status) __attribute__ ((noreturn)); static void error_print (void); static const char *construct_output_path (const char *path); int main (int argc, char *argv[]) { int optchar; int do_help = 0; int do_version = 0; int force_output = 0; const char *charmap_file = NULL; const char *input_file = NULL; const char *ucs_csn = NULL; const char *output_path; int cannot_write_why; struct charset_t *charset; struct localedef_t *localedef; struct copy_def_list_t *act_add_locdef; /* Set initial values for global varaibles. */ copy_list = NULL; posix_conformance = getenv ("POSIXLY_CORRECT") != NULL; program_name = argv[0]; error_print_progname = error_print; verbose = 0; /* Set locale. Do not set LC_ALL because the other categories must not be affected (acccording to POSIX.2). */ setlocale (LC_MESSAGES, ""); setlocale (LC_CTYPE, ""); /* Initialize the message catalog. */ #if 0 /* In the final version for glibc we can use the variable. */ textdomain (_libc_intl_domainname); #else textdomain ("SYS_libc"); #endif while ((optchar = getopt_long (argc, argv, "cf:hi:u:vV", long_options, NULL)) != EOF) switch (optchar) { case '\0': /* Long option. */ break; case 'c': force_output = 1; break; case 'f': charmap_file = optarg; break; case 'h': do_help = 1; break; case 'i': input_file = optarg; break; case 'u': ucs_csn = optarg; break; case 'v': verbose = 1; break; case 'V': do_version = 1; break; default: usage (4); /* A value >3 is forced by POSIX. */ break; } /* POSIX.2 requires to be verbose about missing characters in the character map. */ verbose |= posix_conformance; /* Version information is requested. */ if (do_version) { fprintf (stderr, "%s - GNU %s %s\n", program_name, PACKAGE, VERSION); exit (0); } /* Help is requested. */ if (do_help) /* Possible violation: POSIX.2 4.35.8 defines the return value 0 as "No errors occured and the locale(s) were successfully created." But giving a other value than 0 does not make sense here. It is perhaps not that important because POSIX does not specify the -h option for localedef. */ usage (0); if (argc - optind != 1) /* We need exactly one non-option parameter. */ usage (4); /* The parameter describes the output path of the constructed files. If the described files cannot be written return a NULL pointer. */ output_path = construct_output_path (argv[optind]); cannot_write_why = errno; /* Now that the parameters are processed we have to reset the local ctype locale. (P1003.2 4.35.5.2) */ setlocale (LC_CTYPE, "POSIX"); /* Look whether the system really allows locale definitions. POSIX defines error code 3 for this situation so I think it must be a fatal error (see P1003.2 4.35.8). */ if (sysconf (_SC_2_LOCALEDEF) < 0) error (3, 0, _("FATAL: system does not define `_POSIX2_LOCALEDEF'")); /* Process charmap file. */ charset = charmap_read (charmap_file); /* Now read the locale file. */ localedef = locfile_read (input_file, charset); if (localedef->failed != 0) error (4, errno, _("cannot open locale definition file `%s'"), input_file); /* Perhaps we saw some `copy' instructions. Process the given list. We use a very simple algorithm: we look up the list from the beginning every time. */ do { int cat; for (act_add_locdef = copy_list; act_add_locdef != NULL; act_add_locdef = act_add_locdef->next) { for (cat = LC_CTYPE; cat <= LC_MESSAGES; ++cat) if ((act_add_locdef->mask & (1 << cat)) != 0) { act_add_locdef->mask &= ~(1 << cat); break; } if (cat <= LC_MESSAGES) break; } if (act_add_locdef != NULL) { int avail = 0; if (act_add_locdef->locale == NULL) act_add_locdef->locale = locfile_read (act_add_locdef->name, charset); if (! act_add_locdef->locale->failed) { avail = act_add_locdef->locale->categories[cat].generic != NULL; if (avail) localedef->categories[cat].generic = act_add_locdef->locale->categories[cat].generic; } if (! avail) { const char *locale_names[] = { "LC_COLLATE", "LC_CTYPE", "LC_MONETARY", "LC_NUMERIC", "LC_TIME", "LC_MESSAGES" }; char *fname; int fd; struct stat st; asprintf (&fname, LOCALE_PATH "/%s/%s", act_add_locdef->name, locale_names[cat]); fd = open (fname, O_RDONLY); if (fd == -1) { free (fname); asprintf (&fname, LOCALE_PATH "/%s/%s/SYS_%s", act_add_locdef->name, locale_names[cat], locale_names[cat]); fd = open (fname, O_RDONLY); if (fd == -1) error (5, 0, _("\ locale file `%s', used in `copy' statement, not found"), act_add_locdef->name); } if (fstat (fd, &st) < 0) error (5, errno, _("\ cannot `stat' locale file `%s'"), fname); localedef->len[cat] = st.st_size; localedef->categories[cat].generic = mmap (NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0); if (localedef->categories[cat].generic == (void *) -1) { size_t left = st.st_size; void *read_ptr; localedef->categories[cat].generic = xmalloc (st.st_size); read_ptr = localedef->categories[cat].generic; do { long int n; n = read (fd, read_ptr, left); if (n == 1) error (5, errno, _("cannot read locale file `%s'"), fname); read_ptr += n; left -= n; } while (left > 0); } close (fd); free (fname); localedef->binary |= 1 << cat; } } } while (act_add_locdef != NULL); /* Check the categories we processed in source form. */ check_all_categories (localedef, charset); /* We are now able to write the data files. If warning were given we do it only if it is explicitly requested (--force). */ if (error_message_count == 0 || force_output != 0) { if (cannot_write_why != 0) error (4, cannot_write_why, _("cannot write output files to `%s'"), output_path); else write_all_categories (localedef, charset, output_path); } else error (4, 0, _("no output file produced because warning were issued")); /* This exit status is prescribed by POSIX.2 4.35.7. */ exit (error_message_count != 0); } void def_to_process (const char *name, int category) { struct copy_def_list_t *new, **rp; for (rp = ©_list; *rp != NULL; rp = &(*rp)->next) if (strcmp (name, (*rp)->name) == 0) break; if (*rp == NULL) { size_t cnt; *rp = (struct copy_def_list_t *) xmalloc (sizeof (**rp)); (*rp)->next = NULL; (*rp)->name = name; (*rp)->mask = 0; (*rp)->locale = NULL; for (cnt = 0; cnt < 6; ++cnt) { (*rp)->binary[cnt].data = NULL; (*rp)->binary[cnt].len = 0; } } new = *rp; if ((new->mask & category) != 0) /* We already have the information. This cannot happen. */ error (5, 0, _("\ category data requested more than once: should not happen")); new->mask |= category; } /* Display usage information and exit. */ static void usage (int status) { if (status != 0) fprintf (stderr, _("Try `%s --help' for more information.\n"), program_name); else printf (_("\ Usage: %s [OPTION]... name\n\ Mandatory arguments to long options are mandatory for short options too.\n\ -c, --force create output even if warning messages were issued\n\ -h, --help display this help and exit\n\ -f, --charmap=FILE symbolic character names defined in FILE\n\ -i, --inputfile=FILE source definitions are found in FILE\n\ -u, --code-set-name=NAME specify code set for mapping ISO 10646 elements\n\ -v, --verbose print more messages\n\ -V, --version output version information and exit\n\ --posix be strictly POSIX conform\n\ \n\ System's directory for character maps: %s\n\ locale files : %s\n"), program_name, CHARMAP_PATH, LOCALE_PATH); exit (status); } /* The address of this function will be assigned to the hook in the error functions. */ static void error_print () { /* We don't want the program name to be printed in messages. Emacs' compile.el does not like this. */ } /* The parameter to localedef describes the output path. If it does contain a '/' character it is a relativ path. Otherwise it names the locale this definition is for. */ static const char * construct_output_path (const char *path) { char *result; if (strchr (path, '/') == NULL) { /* This is a system path. */ int path_max_len = pathconf (LOCALE_PATH, _PC_PATH_MAX) + 1; result = (char *) xmalloc (path_max_len); snprintf (result, path_max_len, "%s/%s", LOCALE_PATH, path); } else { char *t; /* This is a user path. */ result = xmalloc (strlen (path) + 2); t = stpcpy (result, path); *t = '\0'; } errno = 0; if (euidaccess (result, W_OK) == -1) /* Perhaps the directory does not exist now. Try to create it. */ if (errno == ENOENT) { errno = 0; mkdir (result, 0777); } strcat (result, "/"); return result; }