fedora/build-locale-archive.c

   1 #define _GNU_SOURCE
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <dirent.h>
   5 #include <errno.h>
   6 #include <string.h>
   7 #include <stdbool.h>
   8 #include <sys/stat.h>
   9 #include <stdio.h>
  10 #include <stdarg.h>
  11 #include "../locale/hashval.h"
  12
  13 const char *alias_file = DATADIR "/locale/locale.alias";
  14 const char *locar_file = PREFIX "/lib/locale/locale-archive";
  15 const char *loc_path = PREFIX "/lib/locale/";
  16 int be_quiet = 1;
  17 int verbose = 0;
  18 int max_locarchive_open_retry = 10;
  19 const char *output_prefix;
  20
  21 static int
  22 is_prime (unsigned long candidate)
  23 {
  24   /* No even number and none less than 10 will be passed here.  */
  25   unsigned long int divn = 3;
  26   unsigned long int sq = divn * divn;
  27
  28   while (sq < candidate && candidate % divn != 0)
  29     {
  30       ++divn;
  31       sq += 4 * divn;
  32       ++divn;
  33     }
  34
  35   return candidate % divn != 0;
  36 }
  37
  38 unsigned long
  39 next_prime (unsigned long seed)
  40 {
  41   /* Make it definitely odd.  */
  42   seed |= 1;
  43
  44   while (!is_prime (seed))
  45     seed += 2;
  46
  47   return seed;
  48 }
  49
  50 /* xmalloc is only used by show_archive_content.  */
  51 void *
  52 xmalloc (size_t size)
  53 {
  54   exit (255);
  55 }
  56
  57 void
  58 error (int status, int errnum, const char *message, ...)
  59 {
  60   va_list args;
  61
  62   va_start (args, message);
  63   fflush (stdout);
  64   fprintf (stderr, "%s: ", program_invocation_name);
  65   vfprintf (stderr, message, args);
  66   va_end (args);
  67   if (errnum)
  68     fprintf (stderr, ": %s", strerror (errnum));
  69   putc ('\n', stderr);
  70   fflush (stderr);
  71   if (status)
  72     exit (errnum == EROFS ? 0 : status);
  73 }
  74
  75 extern int add_locales_to_archive (size_t nlist, char *list[], bool replace);
  76
  77 int main ()
  78 {
  79   char path[4096];
  80   DIR *dirp;
  81   struct dirent64 *d;
  82   struct stat64 st;
  83   char *list[16384], *primary;
  84   unsigned int cnt = 0;
  85
  86   unlink (locar_file);
  87   dirp = opendir (loc_path);
  88   if (dirp == NULL)
  89     error (EXIT_FAILURE, errno, "cannot open directory \"%s\"", loc_path);
  90
  91   primary = getenv ("LC_ALL");
  92   if (primary == NULL)
  93     primary = getenv ("LANG");
  94   if (primary != NULL)
  95     {
  96       if (strncmp (primary, "ja", 2) != 0
  97           && strncmp (primary, "ko", 2) != 0
  98           && strncmp (primary, "zh", 2) != 0)
  99         {
 100           char *ptr = malloc (strlen (primary) + strlen (".utf8") + 1), *p, *q;
 101
 102           if (ptr)
 103             {
 104               p = ptr;
 105               q = primary;
 106               while (*q && *q != '.' && *q != '@')
 107                 *p++ = *q++;
 108               if (*q == '.')
 109                 while (*q && *q != '@')
 110                   q++;
 111               p = stpcpy (p, ".utf8");
 112               strcpy (p, q);
 113               primary = ptr;
 114             }
 115           else
 116             primary = ".....";
 117         }
 118       strcpy (stpcpy (path, loc_path), primary);
 119       if (stat64 (path, &st) >= 0 && S_ISDIR (st.st_mode))
 120         {
 121           list[cnt] = strdup (path);
 122           if (list[cnt] == NULL)
 123             error (0, errno, "cannot add file to list \"%s\"", path);
 124           else
 125             cnt++;
 126         }
 127       if (cnt == 0)
 128         primary = NULL;
 129     }
 130
 131   while ((d = readdir64 (dirp)) != NULL)
 132     {
 133       if (strcmp (d->d_name, ".") == 0 || strcmp (d->d_name, "..") == 0)
 134         continue;
 135
 136       if (primary && strcmp (d->d_name, primary) == 0)
 137         continue;
 138
 139       strcpy (stpcpy (path, loc_path), d->d_name);
 140       if (stat64 (path, &st) < 0)
 141         {
 142           error (0, errno, "cannot stat \"%s\"", path);
 143           continue;
 144         }
 145       if (! S_ISDIR (st.st_mode))
 146         continue;
 147       if (cnt == 16384)
 148         error (EXIT_FAILURE, 0, "too many directories in \"%s\"", loc_path);
 149       list[cnt] = strdup (path);
 150       if (list[cnt] == NULL)
 151         {
 152           error (0, errno, "cannot add file to list \"%s\"", path);
 153           continue;
 154         }
 155       cnt++;
 156     }
 157   closedir (dirp);
 158   add_locales_to_archive (cnt, list, 0);
 159   char *argv[] = { "/usr/sbin/tzdata-update", NULL };
 160   execve (argv[0], (char *const *)argv, (char *const *)&argv[1]);
 161   exit (0);
 162 }