+ NSNumber *value(nil);
+
+ FILE *du(popen([[NSString stringWithFormat:@"/usr/libexec/cydia/cydo /usr/libexec/cydia/du -ks %@", path] UTF8String], "r"));
+ if (du != NULL) {
+ char line[1024];
+ while (fgets(line, sizeof(line), du) != NULL) {
+ size_t length(strlen(line));
+ while (length != 0 && line[length - 1] == '\n')
+ line[--length] = '\0';
+ if (char *tab = strchr(line, '\t')) {
+ *tab = '\0';
+ value = [NSNumber numberWithUnsignedLong:strtoul(line, NULL, 0)];
+ }
+ }
+ pclose(du);
+ }
+
+ return value;