Fikset segfaults.

mysql-dbadm.c

@@ -209,7 +209,7 @@ list(MYSQL *pmysql)
 
   usr_groups = get_group_names(&numgroups);
   cp = usr_groups;
-  while (*cp) { // itererer over alle grupper en person er med i
+  while (cp && *cp) { // itererer over alle grupper en person er med i
     if (*cp == NULL)
       break;
 
@@ -625,12 +625,11 @@ main(int argc, char *argv[])
   if ((command == c_show) && (argc == 2)) {
     dblist = list(&mysql);
     p = dblist;
-    while (*p) {
+    while (p && *p) {
       show(&mysql, *p);
       free(*p);
       p++;
     }
-    free(*p);
     free(dblist);
   }
   else {

mysql-useradm.c

@@ -191,7 +191,7 @@ list(MYSQL *pmysql)
 
   usrgroups = get_group_names(&numgroups);
   cp = usrgroups;
-  while (*cp) {
+  while (cp && *cp) {
     end = strmov(end, " OR user='");
     end += mysql_real_escape_string(pmysql, end, *cp, strlen(*cp));
     end = strmov(end, "' OR user LIKE '");
@@ -290,7 +290,7 @@ main(int argc, char *argv[])
     {
       dblist = list(&mysql);
       p = dblist;
-      while (*p)
+      while (p && *p)
         {
           show(&mysql, *p);
           free(*p);