Make it so users must exist to address them in local mail

src/bbs.h

@@ -314,6 +314,8 @@ extern void gen_salt(char **s);
 extern char *hash_sha256(char *pass, char *salt);
 extern int save_user(struct user_record *user);
 extern int check_user(char *loginname);
+extern int check_fullname_j(char *firstandlastname);
+extern int check_fullname(char *firstname, char *lastname);
 extern struct user_record *new_user();
 extern struct user_record *check_user_pass(char *loginname, char *password);
 extern void list_users(struct user_record *user);

src/mail_menu.c

@@ -1594,6 +1594,16 @@ int read_message(struct user_record *user, struct msg_headers *msghs, int mailno
 				s_printf(get_string(114));
 				s_readstring_inject(buffer, 32, msghs->msgs[mailno]->from);
 				to = strdup(buffer);
+				if (ma->type == TYPE_LOCAL_AREA && (strcasecmp(to, "all") != 0 && check_user(to) && check_fullname_j(to))) {
+					s_printf(get_string(55));
+					free(body);
+					free(subject);
+					free(to);
+					free(from);
+					ptr_vector_apply(&msg_lines, free);
+					destroy_ptr_vector(&msg_lines);
+					return 0;					
+				}
 				s_printf(get_string(115));
 				s_readstring_inject(buffer, 64, subject);
 				free(subject);
@@ -2026,6 +2036,11 @@ void post_message(struct user_record *user) {
 		strlcpy(buffer, "ALL", sizeof(buffer));
 	}
 
+	if (ma->type == TYPE_LOCAL_AREA && (strcasecmp(buffer, "all") != 0 && check_user(buffer) && check_fullname_j(buffer))) {
+		s_printf(get_string(55));
+		return;
+	}
+
 	if (ma->type == TYPE_NETMAIL_AREA) {
 		s_printf(get_string(121));
 		s_readstring(buffer2, 32);

src/users.c

@@ -540,6 +540,27 @@ void list_users(struct user_record *user) {
 	s_getc();
 }
 
+int check_fullname_j(char *firstandlastname) {
+	char *firstname = strdup(firstandlastname);
+	
+	if (!firstname) {
+		return 0;
+	}
+	
+	char *lastname = strchr(firstname, ' ');
+	int ret;
+	
+	if (lastname == NULL) {
+		return 0;
+	}
+	*lastname = '\0';
+	lastname++;
+	ret = check_fullname(firstname, lastname);
+	
+	free(firstname);
+	return ret;
+}
+
 int check_fullname(char *firstname, char *lastname) {
 	sqlite3 *db = NULL;
 	sqlite3_stmt *res = NULL;
@@ -561,7 +582,7 @@ int check_fullname(char *firstname, char *lastname) {
 	sqlite3_finalize(res);
 	sqlite3_close(db);
 
-	return (!(step == SQLITE_ROW));
+	return (step != SQLITE_ROW);
 }
 
 int check_user(char *loginname) {
@@ -576,7 +597,7 @@ int check_user(char *loginname) {
 	if (rc != SQLITE_OK) {
 		dolog("Failed to execute statement: %s", sqlite3_errmsg(db));
 		sqlite3_close(db);
-		return 1;
+		return 0;
 	}
 	sqlite3_bind_text(res, 1, loginname, -1, 0);
 	int step = sqlite3_step(res);

src/www_msgs.c

@@ -964,6 +964,10 @@ int www_send_msg(struct user_record *user, char *to, char *subj, int conference,
 		return 0;
 	struct mail_area *ma = get_area(conference, area);
 
+	if (ma->type == TYPE_LOCAL_AREA && (strcasecmp(to, "all") != 0 && check_user(to) && check_fullname_j(to))) {
+		return 0;
+	}
+
 	if (ma->write_sec_level <= user->sec_level && ma->type != TYPE_NETMAIL_AREA) {
 		jb = open_jam_base(ma->path);
 		if (!jb) {