static const char*
scan_timezone_dir( ScanDataRec* scan,
char* top,
int depth )
{
DIR* d = opendir( scan->path );
const char* result = NULL;
D( "%s: entering '%s\n", __FUNCTION__, scan->path );
if (d != NULL) {
struct dirent* ent;
while ((ent = readdir(d)) != NULL) {
struct stat ent_st;
char* p = top;
if (ent->d_name[0] == '.') /* avoid hidden and special files */
continue;
p = bufprint( p, scan->path_end, "/%s", ent->d_name );
if (p >= scan->path_end)
continue;
//D( "%s: scanning '%s'\n", __FUNCTION__, scan->path );
if ( stat( scan->path, &ent_st ) < 0 )
continue;
if ( S_ISDIR(ent_st.st_mode) && depth < 2 )
{
//D( "%s: directory '%s'\n", __FUNCTION__, scan->path );
result = scan_timezone_dir( scan, p, depth + 1 );
if (result != NULL)
break;
}
else if ( S_ISREG(ent_st.st_mode) && (depth >= 1 && depth <= 2) )
{
char* name = scan->path_root + 1;
if ( check_timezone_is_zoneinfo( name ) )
{
if (compare_timezone_to_localtime( scan, scan->path ))
{
result = strdup( name );
D( "%s: found '%s'\n", __FUNCTION__, result );
break;
}
}
else
{
//D( "%s: ignoring '%s'\n", __FUNCTION__, scan->path );
}
}
}
closedir(d);
}
return result;
}
static const char*
scan_timezone_dir( ScanDataRec* scan,
char* top,
int depth )
{
DIR* d = opendir( scan->path );
const char* result = NULL;
D( "%s: entering '%s\n", __FUNCTION__, scan->path );
if (d != NULL) {
struct dirent* ent;
while ((ent = readdir(d)) != NULL) {
struct stat ent_st;
char* p = top;
if (ent->d_name[0] == '.') /* avoid hidden and special files */
continue;
p = bufprint( p, scan->path_end, "/%s", ent->d_name );
if (p >= scan->path_end)
continue;
//D( "%s: scanning '%s'\n", __FUNCTION__, scan->path );
// Important: use lstat() instead of stat() because recent
// Ubuntu distributions creates directories full of links, e.g.
// /usr/share/info/posix/Australia/Sydney -> ../../Australia/Sydney
// and we want to ignore them.
if ( lstat( scan->path, &ent_st ) < 0 )
continue;
if ( S_ISDIR(ent_st.st_mode) && depth < 2 )
{
//D( "%s: directory '%s'\n", __FUNCTION__, scan->path );
result = scan_timezone_dir( scan, p, depth + 1 );
if (result != NULL)
break;
}
else if ( S_ISREG(ent_st.st_mode) && (depth >= 1 && depth <= 2) )
{
char* name = scan->path_root + 1;
if ( check_timezone_is_zoneinfo( name ) )
{
if (compare_timezone_to_localtime( scan, scan->path ))
{
result = strdup( name );
D( "%s: found '%s'\n", __FUNCTION__, result );
break;
}
}
else
{
//D( "%s: ignoring '%s'\n", __FUNCTION__, scan->path );
}
}
}
closedir(d);
}
return result;
}
