Ticket #47746 - ldap/servers/slapd/back-ldbm/dblayer.c: possible minor problem with sscanf

Description: Warning in read_metadata (dblayer.c):
> sscanf(thisline,"%[a-z]%c%s",attribute,&delimiter,value);
  (warning) scanf without field width limits can crash with huge input data.
Adding the size of the buffer to the sscanf format.

Thanks to dcb for reporting the bug and fix.

Reviewed by [email protected].

ldap/servers/slapd/back-ldbm/dblayer.c

@@ -5302,7 +5302,7 @@ static int read_metadata(struct ldbminfo *li)
                     nextline++;
                 }
             }
-            sscanf(thisline,"%[a-z]%c%s",attribute,&delimiter,value);
+            sscanf(thisline,"%512[a-z]%c%128s",attribute,&delimiter,value);
             if (0 == strcmp("cachesize",attribute)) {
                 priv->dblayer_previous_cachesize = strtoul(value, NULL, 10);
             } else if (0 == strcmp("ncache",attribute)) {