Bump copyright years

This increases the binary size, but at least we stop showing
Chinese characters instead of ASCII.

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2013, 2024, Přemysl Eric Janouch <p@janouch.name>
+Copyright (c) 2013, 2024 - 2025, Přemysl Eric Janouch <p@janouch.name>
 
 Permission to use, copy, modify, and/or distribute this software for any
 purpose with or without fee is hereby granted.

NEWS

@@ -1,3 +1,10 @@
+Unreleased
+
+ * eizoctl: added a --quiet option to suppress information and/or errors
+
+ * eizoctl: fixed input port reporting
+
+
 1.1.0 (2024-11-28)
 
  * Ported eizoctltray to macOS as well

eizoctl.c

@@ -4,7 +4,7 @@
  * This program stays independent of the liberty library
  * in order to build on Windows.
  *
- * Copyright (c) 2024, Přemysl Eric Janouch <p@janouch.name>
+ * Copyright (c) 2025, Přemysl Eric Janouch <p@janouch.name>
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted.
@@ -18,6 +18,14 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
  */
+
+// On Windows, vswprintf() interprets %s in the width of the format string,
+// and %hs is not really compliant with any standard:
+// https://devblogs.microsoft.com/oldnewthing/20190830-00/?p=102823
+#ifdef _WIN32
+#define __USE_MINGW_ANSI_STDIO
+#endif
+
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdint.h>
@@ -41,7 +49,9 @@
 #define hid_init hidapi_hid_init
 #endif
 
-#if defined __GNUC__
+#if defined __MINGW_GNU_PRINTF
+#define ATTRIBUTE_PRINTF(x, y) __MINGW_GNU_PRINTF((x), (y))
+#elif defined __GNUC__
 #define ATTRIBUTE_PRINTF(x, y) __attribute__((format(printf, x, y)))
 #else
 #define ATTRIBUTE_PRINTF(x, y)
@@ -803,7 +813,7 @@ eizo_port_by_name(const char *name)
 	return index;
 }
 
-static char *
+static const char *
 eizo_port_to_name(uint16_t port)
 {
 	const char *stem = NULL;
@@ -811,14 +821,14 @@ eizo_port_to_name(uint16_t port)
 	if (group && group < sizeof g_port_names / sizeof g_port_names[0])
 		stem = g_port_names[group][0];
 
-	static char buffer[32] = "";
+	static char buf[32] = "";
 	if (!stem)
-		snprintf(buffer, sizeof buffer, "%x", port);
+		snprintf(buf, sizeof buf, "%x", port);
 	else if (!number)
-		snprintf(buffer, sizeof buffer, "%s", stem);
+		snprintf(buf, sizeof buf, "%s", stem);
 	else
-		snprintf(buffer, sizeof buffer, "%s %d", stem, number);
-	return buffer;
+		snprintf(buf, sizeof buf, "%s %d", stem, (number + 1));
+	return buf;
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@@ -895,7 +905,7 @@ eizo_get_input_ports(struct eizo_monitor *m, uint16_t *ports, size_t size)
 }
 
 static uint16_t
-eizo_resolve_port(struct eizo_monitor *m, const char *port)
+eizo_resolve_port_by_name(struct eizo_monitor *m, const char *port)
 {
 	uint8_t usb_c_index = 0;
 	if (eizo_port_by_name_in_group(port, g_port_names_usb_c, &usb_c_index)) {
@@ -907,6 +917,26 @@ eizo_resolve_port(struct eizo_monitor *m, const char *port)
 	return eizo_port_by_name(port);
 }
 
+static const char *
+eizo_resolve_port_to_name(struct eizo_monitor *m, uint16_t port)
+{
+	// USB-C ports are a bit tricky, they only need to be /displayed/ as such.
+	struct eizo_profile_item *item =
+		&m->profile[EIZO_PROFILE_KEY_USB_C_INPUT_PORTS];
+	for (uint8_t i = 0; i < item->len / 2; i++) {
+		if (port != peek_u16le(item->data + i * 2))
+			continue;
+
+		static char buf[32] = "";
+		if (!i)
+			snprintf(buf, sizeof buf, "%s", g_port_names_usb_c[0]);
+		else
+			snprintf(buf, sizeof buf, "%s %u", g_port_names_usb_c[0], (i + 1));
+		return buf;
+	}
+	return eizo_port_to_name(port);
+}
+
 static bool
 eizo_set_input_port(struct eizo_monitor *m, uint16_t port)
 {
@@ -934,8 +964,40 @@ eizo_restart(struct eizo_monitor *m)
 
 // --- Main --------------------------------------------------------------------
 
+struct catbuf {
+	char buf[4096];
+	size_t len;
+};
+
+static const char *
+catf(struct catbuf *b, const char *format, ...) ATTRIBUTE_PRINTF(2, 3);
+
+static const char *
+catf(struct catbuf *b, const char *format, ...)
+{
+	va_list ap;
+	va_start(ap, format);
+	int result = vsnprintf(b->buf + b->len, sizeof b->buf - b->len, format, ap);
+	va_end(ap);
+	if (result >= 0) {
+		b->len += result;
+		if (b->len >= sizeof b->buf)
+			b->len = sizeof b->buf - 1;
+	}
+	return b->buf;
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+typedef void (*print_fn)(const char *format, ...) ATTRIBUTE_PRINTF(1, 2);
+
+static void print_dummy(const char *format, ...)
+{
+	(void) format;
+}
+
 static bool
-eizo_watch(struct eizo_monitor *m)
+eizo_watch(struct eizo_monitor *m, print_fn output, print_fn error)
 {
 	uint8_t buf[1024] = {};
 	int res = 0;
@@ -945,57 +1007,72 @@ eizo_watch(struct eizo_monitor *m)
 
 		if (buf[0] != EIZO_REPORT_ID_GET &&
 			buf[0] != EIZO_REPORT_ID_GET_LONG) {
-			printf("Unknown report ID\n");
+			error("Unknown report ID: %02x\n", buf[0]);
 			continue;
 		}
 
+		struct catbuf message = {{0}, 0};
 		uint16_t page = peek_u16le(&buf[1]), id = peek_u16le(&buf[3]);
 		uint32_t usage = page << 16 | id;
-		printf("%08x", usage);
+		catf(&message, "%08x", usage);
 
 		const struct parser_report *r = eizo_monitor_subreport(m, usage);
 		if (!r) {
-			printf(" unknown usage\n");
+			output(catf(&message, " unknown usage\n"));
 			continue;
 		}
 		size_t rlen = r->report_size / 8 * r->report_count;
 		if ((size_t) res < 7 + rlen) {
-			printf(" received data too short\n");
+			output(catf(&message, " received data too short\n"));
 			continue;
 		}
 		if (r->report_size == 16)
 			for (size_t i = 0; i + 1 < rlen; i += 2)
-				printf(" %04x", peek_u16le(&buf[7 + i]));
+				catf(&message, " %04x", peek_u16le(&buf[7 + i]));
 		else
 			for (size_t i = 0; i < rlen; i++)
-				printf(" %02x", buf[7 + i]);
-		printf("\n");
+				catf(&message, " %02x", buf[7 + i]);
+		output(catf(&message, "\n"));
 	}
 }
 
-typedef void (*print_fn)(const char *format, ...) ATTRIBUTE_PRINTF(1, 2);
+static const char *usage = "Usage: %s OPTION...\n\n"
+	"  -b, --brightness [+-]BRIGHTNESS\n"
+	"   Change monitor brightness; values go from 0 to 1 and may be relative.\n"
+	"  -i, --input NAME\n"
+	"   Change monitor input ports; use '?' to retrieve current values.\n"
+	"  -r, --restart\n"
+	"   Reboot monitors.\n"
+	"  -e, --events\n"
+	"   Watch for events reported by monitors.\n"
+	"  -q, --quiet\n"
+	"   Use once to suppress informative messages, twice to suppress errors.\n"
+	"  -h, --help\n"
+	"   Display this help and exit.\n"
+	"  -V, --version\n"
+	"   Output version information and exit.\n";
 
 static int
-run(int argc, char *argv[], print_fn output, print_fn error, bool verbose)
+run(int argc, char *argv[], print_fn output, print_fn error)
 {
 	const char *name = argv[0];
-	const char *usage = "Usage: %s [--brightness [+-]BRIGHTNESS] [--input NAME]"
-		" [--restart] [--events]\n";
 	static struct option opts[] = {
-		{"input", required_argument, NULL, 'i'},
 		{"brightness", required_argument, NULL, 'b'},
+		{"input", required_argument, NULL, 'i'},
 		{"restart", no_argument, NULL, 'r'},
 		{"events", no_argument, NULL, 'e'},
+		{"quiet", no_argument, NULL, 'q'},
 		{"help", no_argument, NULL, 'h'},
 		{"version", no_argument, NULL, 'V'},
 		{}
 	};
 
+	int quiet = 0;
 	double brightness = NAN;
 	bool relative = false, restart = false, events = false;
 	const char *port = NULL;
 	int c = 0;
-	while ((c = getopt_long(argc, argv, "b:i:h", opts, NULL)) != -1)
+	while ((c = getopt_long(argc, argv, "b:i:reqhV", opts, NULL)) != -1)
 		switch (c) {
 		case 'b':
 			relative = *optarg == '+' || *optarg == '-';
@@ -1013,6 +1090,9 @@ run(int argc, char *argv[], print_fn output, print_fn error, bool verbose)
 		case 'e':
 			events = true;
 			break;
+		case 'q':
+			quiet++;
+			break;
 		case 'h':
 			output(usage, name);
 			return 0;
@@ -1038,6 +1118,10 @@ run(int argc, char *argv[], print_fn output, print_fn error, bool verbose)
 		error("%ls\n", hid_error(NULL));
 		return 1;
 	}
+	if (quiet > 0)
+		output = print_dummy;
+	if (quiet > 1)
+		error = print_dummy;
 
 	// It should be possible to choose a particular monitor,
 	// but it is generally more useful to operate on all of them.
@@ -1057,25 +1141,25 @@ run(int argc, char *argv[], print_fn output, print_fn error, bool verbose)
 				double next = relative ? brightness + prev : brightness;
 				if (!eizo_set_brightness(&m, next))
 					error("Failed to set brightness: %s\n", m.error);
-				else if (verbose)
+				else
 					output("%s %s: brightness: %.2f -> %.2f\n",
 						m.product, m.serial, prev, next);
 			}
 		}
 		if (port) {
 			uint16_t prev = 0;
-			uint16_t next = eizo_resolve_port(&m, port);
+			uint16_t next = eizo_resolve_port_by_name(&m, port);
 			if (!eizo_get_input_port(&m, &prev)) {
 				error("Failed to get input port: %s\n", m.error);
 			} else if (!strcmp(port, "?")) {
 				output("%s %s: input: %s\n",
-					m.product, m.serial, eizo_port_to_name(prev));
+					m.product, m.serial, eizo_resolve_port_to_name(&m, prev));
 			} else if (!next) {
 				error("Failed to resolve port name: %s\n", port);
 			} else {
 				if (!eizo_set_input_port(&m, next))
 					error("Failed to set input port: %s\n", m.error);
-				else if (verbose)
+				else
 					output("%s %s: input: %s -> %s\n",
 						m.product, m.serial, eizo_port_to_name(prev), port);
 			}
@@ -1083,13 +1167,13 @@ run(int argc, char *argv[], print_fn output, print_fn error, bool verbose)
 		if (restart) {
 			if (!eizo_restart(&m))
 				error("Failed to restart: %s\n", m.error);
-			else if (verbose)
+			else
 				output("%s %s: restart\n", m.product, m.serial);
 		}
 		if (events) {
-			if (!verbose)
+			if (quiet)
 				error("Watching events is not possible in this mode\n");
-			else if (!eizo_watch(&m))
+			else if (!eizo_watch(&m, output, error))
 				error("%s\n", m.error);
 		}
 
@@ -1124,7 +1208,7 @@ stdio_error(const char *format, ...)
 int
 main(int argc, char *argv[])
 {
-	return run(argc, argv, stdio_output, stdio_error, true);
+	return run(argc, argv, stdio_output, stdio_error);
 }
 
 // --- Windows -----------------------------------------------------------------
@@ -1167,8 +1251,8 @@ message_output(const char *format, ...)
 	wchar_t *message = message_printf(format, ap);
 	va_end(ap);
 	if (message) {
-		MessageBox(
-			NULL, message, NULL, MB_ICONINFORMATION | MB_OK | MB_APPLMODAL);
+		MessageBox(NULL, message,
+			L"Message", MB_ICONINFORMATION | MB_OK | MB_APPLMODAL);
 		free(message);
 	}
 }
@@ -1228,21 +1312,9 @@ append_monitor(struct eizo_monitor *m, HMENU menu, UINT_PTR base)
 	if (!ports[0])
 		ports[0] = current;
 
-	// USB-C ports are a bit tricky, they only need to be /displayed/ as such.
-	struct eizo_profile_item *item =
-		&m->profile[EIZO_PROFILE_KEY_USB_C_INPUT_PORTS];
 	for (size_t i = 0; ports[i]; i++) {
-		uint8_t usb_c = 0;
-		for (size_t u = 0; u < item->len / 2; u++)
-			if (ports[i] == peek_u16le(item->data + u * 2))
-				usb_c = u + 1;
-
-		if (!usb_c)
-			snwprintf(buf, sizeof buf, L"%s", eizo_port_to_name(ports[i]));
-		else if (usb_c == 1)
-			snwprintf(buf, sizeof buf, L"%s", g_port_names_usb_c[0]);
-		else
-			snwprintf(buf, sizeof buf, L"%s %u", g_port_names_usb_c[0], usb_c);
+		snwprintf(buf, sizeof buf, L"%s",
+			eizo_resolve_port_to_name(m, ports[i]));
 
 		UINT flags = MF_STRING;
 		if (ports[i] == current)
@@ -1395,7 +1467,7 @@ wWinMain(
 			char *mb = mbargv[i + 1] = calloc(len, sizeof *mb);
 			wcstombs(mb, argv[i], len);
 		}
-		return run(argc + 1, mbargv, message_output, message_error, false);
+		return run(argc + 1, mbargv, message_output, message_error);
 	}
 	LocalFree(argv);
 
@@ -1609,23 +1681,9 @@ message_error(const char *format, ...)
 	if (!ports[0])
 		ports[0] = current;
 
-	// USB-C ports are a bit tricky, they only need to be /displayed/ as such.
-	struct eizo_profile_item *item =
-		&m.monitor->profile[EIZO_PROFILE_KEY_USB_C_INPUT_PORTS];
 	for (size_t i = 0; ports[i]; i++) {
-		uint8_t usb_c = 0;
-		for (size_t u = 0; u < item->len / 2; u++)
-			if (ports[i] == peek_u16le(item->data + u * 2))
-				usb_c = u + 1;
-
-		NSString *title = nil;
-		if (!usb_c)
-			title = [NSString stringWithUTF8String:eizo_port_to_name(ports[i])];
-		else if (usb_c == 1)
-			title = [NSString stringWithUTF8String:g_port_names_usb_c[0]];
-		else
-			title = [NSString stringWithFormat:@"%s %u",
-				g_port_names_usb_c[0], usb_c];
+		NSString *title = [NSString stringWithUTF8String:
+			eizo_resolve_port_to_name(m.monitor, ports[i])];
 
 		NSMenuItem *inputPortItem = [[NSMenuItem alloc]
 			initWithTitle:title action:@selector(setInputPort:)
@@ -1708,7 +1766,7 @@ main(int argc, char *argv[])
 {
 	@autoreleasepool {
 		if (argc > 1)
-			return run(argc, argv, message_output, message_error, true);
+			return run(argc, argv, message_output, message_error);
 
 		NSApplication *app = [NSApplication sharedApplication];
 		ApplicationDelegate *delegate = [ApplicationDelegate new];