Show -- for unresolved IPv4 and IPv6 addresses

IDisposable · IDisposable · commit f23480792b62 · 2025-11-03T13:29:58.000-06:00
diff --git a/display.go b/display.go
@@ -42,12 +42,18 @@ func switchToMainScreen() {
 func updateDisplay() {
 	if networkManager != nil {
 		ipv4 := networkManager.IPv4String()
+		if ipv4 == "" {
+			ipv4 = "--"
+		}
 		nativeInstance.UISetVar("ip_v4_address", ipv4)
 		nativeInstance.ChangeVisibility("home_info_ipv4_addr", ipv4 != "")
 
 		ipv6 := networkManager.IPv6String()
+		if ipv6 == "" {
+			ipv6 = "--"
+		}
 		nativeInstance.UISetVar("ip_v6_address", ipv6)
-		nativeInstance.ChangeVisibility("home_info_ipv6_addr", ipv6 != "")
+		nativeInstance.ChangeVisibility("home_info_ipv6_addr", ipv6 != "" && ipv6 != "--")
 
 		nativeInstance.UISetVar("mac_address", networkManager.MACString())
 		nativeInstance.UISetVar("hostname", networkManager.Hostname())
diff --git a/internal/native/eez/jetkvm.eez-project b/internal/native/eez/jetkvm.eez-project
@@ -58,7 +58,7 @@
         {
           "objID": "316b04e4-a7de-4afc-c413-31f5f36d3843",
           "fileName": "vars.c",
-          "template": "#include <string.h>\n#include <stdio.h>\n//${eez-studio LVGL_INCLUDE}\n#include \"vars.h\"\n\nchar app_version[100] = { 0 };\nchar system_version[100] = { 0 };\nchar lvgl_version[32] = { 0 };\nchar main_screen[32] = \"home_screen\";\nchar mac_address[18] = { 0 };\nchar ip_v4_address[22] = { 0 };\nchar ip_v6_address[46] = { 0 };\nchar hostname[262] = { 0 };\n\nconst char *get_var_ip_v4_address() {\n    return ip_v4_address;\n}\n\nvoid set_var_ip_v4_address(const char *value) {\n    strncpy(ip_v4_address, value, sizeof(ip_v4_address) / sizeof(char));\n    ip_v4_address[sizeof(ip_v4_address) / sizeof(char) - 1] = 0;\n\n    tick_screen_home_screen();\n}\n\nconst char *get_var_ip_v6_address() {\n    return ip_v6_address;\n}\n\nvoid set_var_ip_v6_address(const char *value) {\n    strncpy(ip_v6_address, value, sizeof(ip_v6_address) / sizeof(char));\n    ip_v6_address[sizeof(ip_v6_address) / sizeof(char) - 1] = 0;\n\n    tick_screen_home_screen();\n}\n\nconst char *get_var_mac_address() {\n    return mac_address;\n}\n\nvoid set_var_mac_address(const char *value) {\n    strncpy(mac_address, value, sizeof(mac_address) / sizeof(char));\n    mac_address[sizeof(mac_address) / sizeof(char) - 1] = 0;\n\n    tick_screen_home_screen();\n    tick_screen_status_screen();\n}\n\nconst char *get_var_hostname() {\n    return hostname;\n}\n\nvoid set_var_hostname(const char *value) {\n    strncpy(hostname, value, sizeof(hostname) / sizeof(char));\n    hostname[sizeof(hostname) / sizeof(char) - 1] = 0;\n\n    tick_screen_home_screen();\n}\n\nconst char *get_var_app_version() {\n    return app_version;\n}\n\nvoid set_var_app_version(const char *value) {\n    strncpy(app_version, value, sizeof(app_version) / sizeof(char));\n    app_version[sizeof(app_version) / sizeof(char) - 1] = 0;\n    \n    tick_screen_boot_screen();\n    tick_screen_about_screen();\n}\n\nconst char *get_var_system_version() {\n    return system_version;\n}\n\nvoid set_var_system_version(const char *value) {\n    strncpy(system_version, value, sizeof(system_version) / sizeof(char));\n    system_version[sizeof(system_version) / sizeof(char) - 1] = 0;\n\n    tick_screen_about_screen();\n}\n\nconst char *get_var_lvgl_version() {\n    if (lvgl_version[0] == '\\0') {\n        char buf[32];\n        sprintf(buf, \"%d.%d.%d\", LVGL_VERSION_MAJOR, LVGL_VERSION_MINOR, LVGL_VERSION_PATCH);\n        \n        \n        strncpy(lvgl_version, buf, sizeof(lvgl_version) / sizeof(char));\n        app_version[sizeof(lvgl_version) / sizeof(char) - 1] = 0;\n    }\n    return lvgl_version;\n}\n\nvoid set_var_lvgl_version(const char *value) {\n    // intentional NOP since this is actually generated\n \n    tick_screen_about_screen();\n}\n\nconst char *get_var_main_screen() {\n    return main_screen;\n}\n\nvoid set_var_main_screen(const char *value) {\n    strncpy(main_screen, value, sizeof(main_screen) / sizeof(char));\n    main_screen[sizeof(main_screen) / sizeof(char) - 1] = 0;\n}\n"
+          "template": "#include <string.h>\n#include <stdio.h>\n//${eez-studio LVGL_INCLUDE}\n#include \"vars.h\"\n\nchar app_version[100] = { 0 };\nchar system_version[100] = { 0 };\nchar lvgl_version[32] = { 0 };\nchar main_screen[32] = \"home_screen\";\nchar mac_address[18] = { 0 };\nchar ip_v4_address[22] = \"--\";\nchar ip_v6_address[46] = \"--\";\nchar hostname[262] = { 0 };\n\nconst char *get_var_ip_v4_address() {\n    return ip_v4_address;\n}\n\nvoid set_var_ip_v4_address(const char *value) {\n    strncpy(ip_v4_address, value, sizeof(ip_v4_address) / sizeof(char));\n    ip_v4_address[sizeof(ip_v4_address) / sizeof(char) - 1] = 0;\n\n    tick_screen_home_screen();\n}\n\nconst char *get_var_ip_v6_address() {\n    return ip_v6_address;\n}\n\nvoid set_var_ip_v6_address(const char *value) {\n    strncpy(ip_v6_address, value, sizeof(ip_v6_address) / sizeof(char));\n    ip_v6_address[sizeof(ip_v6_address) / sizeof(char) - 1] = 0;\n\n    tick_screen_home_screen();\n}\n\nconst char *get_var_mac_address() {\n    return mac_address;\n}\n\nvoid set_var_mac_address(const char *value) {\n    strncpy(mac_address, value, sizeof(mac_address) / sizeof(char));\n    mac_address[sizeof(mac_address) / sizeof(char) - 1] = 0;\n\n    tick_screen_home_screen();\n    tick_screen_status_screen();\n}\n\nconst char *get_var_hostname() {\n    return hostname;\n}\n\nvoid set_var_hostname(const char *value) {\n    strncpy(hostname, value, sizeof(hostname) / sizeof(char));\n    hostname[sizeof(hostname) / sizeof(char) - 1] = 0;\n\n    tick_screen_home_screen();\n}\n\nconst char *get_var_app_version() {\n    return app_version;\n}\n\nvoid set_var_app_version(const char *value) {\n    strncpy(app_version, value, sizeof(app_version) / sizeof(char));\n    app_version[sizeof(app_version) / sizeof(char) - 1] = 0;\n    \n    tick_screen_boot_screen();\n    tick_screen_about_screen();\n}\n\nconst char *get_var_system_version() {\n    return system_version;\n}\n\nvoid set_var_system_version(const char *value) {\n    strncpy(system_version, value, sizeof(system_version) / sizeof(char));\n    system_version[sizeof(system_version) / sizeof(char) - 1] = 0;\n\n    tick_screen_about_screen();\n}\n\nconst char *get_var_lvgl_version() {\n    if (lvgl_version[0] == '\\0') {\n        char buf[32];\n        sprintf(buf, \"%d.%d.%d\", LVGL_VERSION_MAJOR, LVGL_VERSION_MINOR, LVGL_VERSION_PATCH);\n        \n        \n        strncpy(lvgl_version, buf, sizeof(lvgl_version) / sizeof(char));\n        app_version[sizeof(lvgl_version) / sizeof(char) - 1] = 0;\n    }\n    return lvgl_version;\n}\n\nvoid set_var_lvgl_version(const char *value) {\n    // intentional NOP since this is actually generated\n \n    tick_screen_about_screen();\n}\n\nconst char *get_var_main_screen() {\n    return main_screen;\n}\n\nvoid set_var_main_screen(const char *value) {\n    strncpy(main_screen, value, sizeof(main_screen) / sizeof(char));\n    main_screen[sizeof(main_screen) / sizeof(char) - 1] = 0;\n}\n"
         },
         {
           "objID": "cbe7cde1-8920-476a-b2a2-1761ae7451b0",
diff --git a/internal/native/eez/src/ui/vars.c b/internal/native/eez/src/ui/vars.c
@@ -8,8 +8,8 @@ char system_version[100] = { 0 };
 char lvgl_version[32] = { 0 };
 char main_screen[32] = "home_screen";
 char mac_address[18] = { 0 };
-char ip_v4_address[22] = { 0 };
-char ip_v6_address[46] = { 0 };
+char ip_v4_address[22] = "--";
+char ip_v6_address[46] = "--";
 char hostname[262] = { 0 };
 
 const char *get_var_ip_v4_address() {

Original file line number	Diff line number	Diff line change
`@@ -58,7 +58,7 @@`
`58`	`58`	`{`
`59`	`59`	`"objID": "316b04e4-a7de-4afc-c413-31f5f36d3843",`
`60`	`60`	`"fileName": "vars.c",`
`61`		- "template": "#include <string.h>\n#include <stdio.h>\n//${eez-studio LVGL_INCLUDE}\n#include \"vars.h\"\n\nchar app_version[100] = { 0 };\nchar system_version[100] = { 0 };\nchar lvgl_version[32] = { 0 };\nchar main_screen[32] = \"home_screen\";\nchar mac_address[18] = { 0 };\nchar ip_v4_address[22] = { 0 };\nchar ip_v6_address[46] = { 0 };\nchar hostname[262] = { 0 };\n\nconst char get_var_ip_v4_address() {\n return ip_v4_address;\n}\n\nvoid set_var_ip_v4_address(const char value) {\n strncpy(ip_v4_address, value, sizeof(ip_v4_address) / sizeof(char));\n ip_v4_address[sizeof(ip_v4_address) / sizeof(char) - 1] = 0;\n\n tick_screen_home_screen();\n}\n\nconst char get_var_ip_v6_address() {\n return ip_v6_address;\n}\n\nvoid set_var_ip_v6_address(const char value) {\n strncpy(ip_v6_address, value, sizeof(ip_v6_address) / sizeof(char));\n ip_v6_address[sizeof(ip_v6_address) / sizeof(char) - 1] = 0;\n\n tick_screen_home_screen();\n}\n\nconst char get_var_mac_address() {\n return mac_address;\n}\n\nvoid set_var_mac_address(const char value) {\n strncpy(mac_address, value, sizeof(mac_address) / sizeof(char));\n mac_address[sizeof(mac_address) / sizeof(char) - 1] = 0;\n\n tick_screen_home_screen();\n tick_screen_status_screen();\n}\n\nconst char get_var_hostname() {\n return hostname;\n}\n\nvoid set_var_hostname(const char value) {\n strncpy(hostname, value, sizeof(hostname) / sizeof(char));\n hostname[sizeof(hostname) / sizeof(char) - 1] = 0;\n\n tick_screen_home_screen();\n}\n\nconst char get_var_app_version() {\n return app_version;\n}\n\nvoid set_var_app_version(const char value) {\n strncpy(app_version, value, sizeof(app_version) / sizeof(char));\n app_version[sizeof(app_version) / sizeof(char) - 1] = 0;\n \n tick_screen_boot_screen();\n tick_screen_about_screen();\n}\n\nconst char get_var_system_version() {\n return system_version;\n}\n\nvoid set_var_system_version(const char value) {\n strncpy(system_version, value, sizeof(system_version) / sizeof(char));\n system_version[sizeof(system_version) / sizeof(char) - 1] = 0;\n\n tick_screen_about_screen();\n}\n\nconst char get_var_lvgl_version() {\n if (lvgl_version[0] == '\\0') {\n char buf[32];\n sprintf(buf, \"%d.%d.%d\", LVGL_VERSION_MAJOR, LVGL_VERSION_MINOR, LVGL_VERSION_PATCH);\n \n \n strncpy(lvgl_version, buf, sizeof(lvgl_version) / sizeof(char));\n app_version[sizeof(lvgl_version) / sizeof(char) - 1] = 0;\n }\n return lvgl_version;\n}\n\nvoid set_var_lvgl_version(const char value) {\n // intentional NOP since this is actually generated\n \n tick_screen_about_screen();\n}\n\nconst char get_var_main_screen() {\n return main_screen;\n}\n\nvoid set_var_main_screen(const char value) {\n strncpy(main_screen, value, sizeof(main_screen) / sizeof(char));\n main_screen[sizeof(main_screen) / sizeof(char) - 1] = 0;\n}\n"
	`61`	+ "template": "#include <string.h>\n#include <stdio.h>\n//${eez-studio LVGL_INCLUDE}\n#include \"vars.h\"\n\nchar app_version[100] = { 0 };\nchar system_version[100] = { 0 };\nchar lvgl_version[32] = { 0 };\nchar main_screen[32] = \"home_screen\";\nchar mac_address[18] = { 0 };\nchar ip_v4_address[22] = \"--\";\nchar ip_v6_address[46] = \"--\";\nchar hostname[262] = { 0 };\n\nconst char get_var_ip_v4_address() {\n return ip_v4_address;\n}\n\nvoid set_var_ip_v4_address(const char value) {\n strncpy(ip_v4_address, value, sizeof(ip_v4_address) / sizeof(char));\n ip_v4_address[sizeof(ip_v4_address) / sizeof(char) - 1] = 0;\n\n tick_screen_home_screen();\n}\n\nconst char get_var_ip_v6_address() {\n return ip_v6_address;\n}\n\nvoid set_var_ip_v6_address(const char value) {\n strncpy(ip_v6_address, value, sizeof(ip_v6_address) / sizeof(char));\n ip_v6_address[sizeof(ip_v6_address) / sizeof(char) - 1] = 0;\n\n tick_screen_home_screen();\n}\n\nconst char get_var_mac_address() {\n return mac_address;\n}\n\nvoid set_var_mac_address(const char value) {\n strncpy(mac_address, value, sizeof(mac_address) / sizeof(char));\n mac_address[sizeof(mac_address) / sizeof(char) - 1] = 0;\n\n tick_screen_home_screen();\n tick_screen_status_screen();\n}\n\nconst char get_var_hostname() {\n return hostname;\n}\n\nvoid set_var_hostname(const char value) {\n strncpy(hostname, value, sizeof(hostname) / sizeof(char));\n hostname[sizeof(hostname) / sizeof(char) - 1] = 0;\n\n tick_screen_home_screen();\n}\n\nconst char get_var_app_version() {\n return app_version;\n}\n\nvoid set_var_app_version(const char value) {\n strncpy(app_version, value, sizeof(app_version) / sizeof(char));\n app_version[sizeof(app_version) / sizeof(char) - 1] = 0;\n \n tick_screen_boot_screen();\n tick_screen_about_screen();\n}\n\nconst char get_var_system_version() {\n return system_version;\n}\n\nvoid set_var_system_version(const char value) {\n strncpy(system_version, value, sizeof(system_version) / sizeof(char));\n system_version[sizeof(system_version) / sizeof(char) - 1] = 0;\n\n tick_screen_about_screen();\n}\n\nconst char get_var_lvgl_version() {\n if (lvgl_version[0] == '\\0') {\n char buf[32];\n sprintf(buf, \"%d.%d.%d\", LVGL_VERSION_MAJOR, LVGL_VERSION_MINOR, LVGL_VERSION_PATCH);\n \n \n strncpy(lvgl_version, buf, sizeof(lvgl_version) / sizeof(char));\n app_version[sizeof(lvgl_version) / sizeof(char) - 1] = 0;\n }\n return lvgl_version;\n}\n\nvoid set_var_lvgl_version(const char value) {\n // intentional NOP since this is actually generated\n \n tick_screen_about_screen();\n}\n\nconst char get_var_main_screen() {\n return main_screen;\n}\n\nvoid set_var_main_screen(const char value) {\n strncpy(main_screen, value, sizeof(main_screen) / sizeof(char));\n main_screen[sizeof(main_screen) / sizeof(char) - 1] = 0;\n}\n"
`62`	`62`	`},`
`63`	`63`	`{`
`64`	`64`	`"objID": "cbe7cde1-8920-476a-b2a2-1761ae7451b0",`