Accept the client name as address argument of aconnect and aseqnet.

You may use aconnect like this:
	% aconnect External:0 Emu8000:1

seq/aconnect/aconnect.1

@@ -36,6 +36,13 @@ option.
 .IP "" 4
 % aconnect -d 64:0 65:0
 .PP
+The address can be given using the client's name.
+.IP "" 4
+% aconnect External:0 Emu8000:1
+.PP
+Then the port 0 of the client matching with the string "External" is
+connected to the port 1 of the client matching with the "Emu8000".
+.PP
 Another function of
 .B aconnect
 is to list the present ports
@@ -54,9 +61,9 @@ client 0: 'System' [group=system] [type=kernel]
 .br
 1 'Announce        ' [group=system]
 .in -4
-client 64: '0: MIDI Synth' [group=] [type=kernel]
+client 64: 'External MIDI-0' [group=] [type=kernel]
 .in +4
-0 'card 0: synth-midi: 0' [group=device]
+0 'MIDI 0-0        ' [group=device]
 .in -4
 .PP
 Similary, to see the output ports, use

seq/aconnect/aconnect.c

@@ -50,17 +50,41 @@ static void usage(void)
 
 /*
  * parse command line to client:port
+ * NB: the given string will be broken.
  */
-static int parse_address(snd_seq_addr_t *addr, char *arg)
+static int parse_address(snd_seq_t *seq, snd_seq_addr_t *addr, char *arg)
 {
 	char *p;
+	int client, port;
 
-	if (! isdigit(*arg))
-		return -1;
 	if ((p = strpbrk(arg, ":.")) == NULL)
 		return -1;
-	addr->client = atoi(arg);
+	if ((port = atoi(p + 1)) < 0)
-	addr->port = atoi(p + 1);
+		return -1;
+	addr->port = port;
+	if (isdigit(*arg)) {
+		client = atoi(arg);
+		if (client < 0)
+			return -1;
+		addr->client = client;
+	} else {
+		/* convert from the name */
+		snd_seq_client_info_t cinfo;
+		int len;
+
+		*p = 0;
+		len = strlen(arg);
+		if (len <= 0)
+			return -1;
+		cinfo.client = -1;
+		while (snd_seq_query_next_client(seq, &cinfo) >= 0) {
+			if (! strncmp(cinfo.name, arg, len)) {
+				addr->client = cinfo.client;
+				return 0;
+			}
+		}
+		return -1; /* not found */
+	}
 	return 0;
 }
 
@@ -354,11 +378,11 @@ int main(int argc, char **argv)
 
 	/* set subscription */
 	memset(&subs, 0, sizeof(subs));
-	if (parse_address(&subs.sender, argv[optind]) < 0) {
+	if (parse_address(seq, &subs.sender, argv[optind]) < 0) {
 		fprintf(stderr, "invalid sender address %s\n", argv[optind]);
 		return 1;
 	}
-	if (parse_address(&subs.dest, argv[optind + 1]) < 0) {
+	if (parse_address(seq, &subs.dest, argv[optind + 1]) < 0) {
 		fprintf(stderr, "invalid destination address %s\n", argv[optind + 1]);
 		return 1;
 	}

seq/aseqnet/aseqnet.c

@@ -169,18 +169,42 @@ static void init_buf(void)
 }
 
 /*
- * parse client:port argument
+ * parse command line to client:port
+ * NB: the given string will be broken.
  */
-static int parse_addr(snd_seq_addr_t *addr, char *arg)
+static int parse_address(snd_seq_t *seq, snd_seq_addr_t *addr, char *arg)
 {
 	char *p;
+	int client, port;
 
-	if (! isdigit(*arg))
-		return -1;
 	if ((p = strpbrk(arg, ":.")) == NULL)
 		return -1;
-	addr->client = atoi(arg);
+	if ((port = atoi(p + 1)) < 0)
-	addr->port = atoi(p + 1);
+		return -1;
+	addr->port = port;
+	if (isdigit(*arg)) {
+		client = atoi(arg);
+		if (client < 0)
+			return -1;
+		addr->client = client;
+	} else {
+		/* convert from the name */
+		snd_seq_client_info_t cinfo;
+		int len;
+
+		*p = 0;
+		len = strlen(arg);
+		if (len <= 0)
+			return -1;
+		cinfo.client = -1;
+		while (snd_seq_query_next_client(seq, &cinfo) >= 0) {
+			if (! strncmp(cinfo.name, arg, len)) {
+				addr->client = cinfo.client;
+				return 0;
+			}
+		}
+		return -1; /* not found */
+	}
 	return 0;
 }
 
@@ -240,7 +264,7 @@ static void init_seq(char *source, char *dest)
 	/* explicit subscriptions */
 	if (source) {
 		/* read subscription */
-		if (parse_addr(&addr, source) < 0) {
+		if (parse_address(handle, &addr, source) < 0) {
 			fprintf(stderr, "invalid source address %s\n", source);
 			exit(1);
 		}
@@ -251,7 +275,7 @@ static void init_seq(char *source, char *dest)
 	}
 	if (dest) {
 		/* write subscription */
-		if (parse_addr(&addr, dest) < 0) {
+		if (parse_address(handle, &addr, dest) < 0) {
 			fprintf(stderr, "invalid destination address %s\n", dest);
 			exit(1);
 		}