+static void escape(char* escaped, const char* orig)
+{
+ do
+ {
+ if (*orig == ',' || *orig == '\\')
+ *escaped++ = '\\';
+ }
+ while ((*escaped++ = *orig++));
+}
+
+static char* add_fsname_option(char* options, const char* spec)
+{
+ /* escaped string cannot be more than twice as big as the original one */
+ char* escaped = malloc(strlen(spec) * 2 + 1);
+
+ if (escaped == NULL)
+ {
+ free(options);
+ exfat_error("failed to allocate escaped string for %s", spec);
+ return NULL;
+ }
+
+ /* on some platforms (e.g. Android, Solaris) device names can contain
+ commas */
+ escape(escaped, spec);
+ options = add_option(options, "fsname", escaped);
+ free(escaped);
+ return options;
+}
+