+
+ /* If necessary, insert semicolon between content type
+ and charset. Assume that the first space is between
+ them. */
+ if ((space = strchr (content_type, ' ')) != NULL) {
+ ssize_t len = strlen (content_type);
+
+ if (space - content_type > 0 &&
+ len > space - content_type + 1) {
+ if (*(space - 1) != ';') {
+ /* The +1 is for the terminating NULL. */
+ memmove (space + 1, space,
+ len - (space - content_type) + 1);
+ *space = ';';
+ }
+ }
+ }