mhsign manpage: mention hostname bug

[mmh] / uip / mhparse.c

diff --git a/uip/mhparse.c b/uip/mhparse.c
index b860dcf..b0876eb 100644 (file)
--- a/uip/mhparse.c
+++ b/uip/mhparse.c
@@ -550,13 +550,19 @@ incl_name_value(unsigned char *buf, char *name, char *value) {
 ** one, return the entire value.  Note that, for example, a name_suffix
 ** of name will match filename="foo", and return foo.
 */
-static char *
+char *
 extract_name_value(char *name_suffix, char *value) {
-       char *extracted_name_value = value;
-       char *name_suffix_plus_quote = concat(name_suffix, "=\"", NULL);
-       char *name_suffix_equals = strstr(value, name_suffix_plus_quote);
+       char *extracted_name_value;
+       char *name_suffix_plus_quote;
+       char *name_suffix_equals;
        char *cp;
 
+       if (!value) {
+               return value;
+       }
+       extracted_name_value = value;
+       name_suffix_plus_quote = concat(name_suffix, "=\"", NULL);
+       name_suffix_equals = strstr(value, name_suffix_plus_quote);
        mh_free0(&name_suffix_plus_quote);
        if (name_suffix_equals) {
                char *name_suffix_begin;