necouchman commented on code in PR #627:
URL: https://github.com/apache/guacamole-server/pull/627#discussion_r2615974322


##########
src/protocols/rdp/settings.c:
##########
@@ -1109,8 +1110,8 @@ guac_rdp_settings* guac_rdp_parse_args(guac_user* user,
 
     /* Port for SFTP connection */
     settings->sftp_port =
-        guac_user_parse_args_string(user, GUAC_RDP_CLIENT_ARGS, argv,
-                IDX_SFTP_PORT, "22");
+        guac_user_parse_args_int_string_bound(user, GUAC_RDP_CLIENT_ARGS, argv,
+                IDX_SFTP_PORT, "22", 0, USHRT_MAX);

Review Comment:
   I was actually thinking it might need to go to 1, but I did a quick search 
and it looks like 0 is a valid TCP port number?? So it probably was okay the 
way you originally had it.



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