jack_netsource : fix crash when hostname is unknown.
[jack2.git] / example-clients / lsp.c
blob5a3362f2f66e6abe97a4d1c615d8a72a4f7ac98d
1 /*
2 This program is free software; you can redistribute it and/or modify
3 it under the terms of the GNU General Public License as published by
4 the Free Software Foundation; either version 2 of the License, or
5 (at your option) any later version.
7 This program is distributed in the hope that it will be useful,
8 but WITHOUT ANY WARRANTY; without even the implied warranty of
9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 GNU General Public License for more details.
12 You should have received a copy of the GNU General Public License
13 along with this program; if not, write to the Free Software
14 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 #include <stdio.h>
18 #include <stdlib.h>
19 #ifndef WIN32
20 #include <unistd.h>
21 #endif
22 #include <string.h>
23 #include <getopt.h>
24 #include <jack/jack.h>
26 char * my_name;
28 static void
29 show_version (void)
31 //fprintf (stderr, "%s: JACK Audio Connection Kit version " VERSION "\n", my_name);
34 static void
35 show_usage (void)
37 show_version ();
38 fprintf (stderr, "\nUsage: %s [options] [filter string]\n", my_name);
39 fprintf (stderr, "List active Jack ports, and optionally display extra information.\n");
40 fprintf (stderr, "Optionally filter ports which match ALL strings provided after any options.\n\n");
41 fprintf (stderr, "Display options:\n");
42 fprintf (stderr, " -A, --aliases List aliases for each port\n");
43 fprintf (stderr, " -c, --connections List connections to/from each port\n");
44 fprintf (stderr, " -l, --latency Display per-port latency in frames at each port\n");
45 fprintf (stderr, " -L, --latency Display total latency in frames at each port\n");
46 fprintf (stderr, " -p, --properties Display port properties. Output may include:\n"
47 " input|output, can-monitor, physical, terminal\n\n");
48 fprintf (stderr, " -t, --type Display port type\n");
49 fprintf (stderr, " -h, --help Display this help message\n");
50 fprintf (stderr, " --version Output version information and exit\n\n");
51 fprintf (stderr, "For more information see http://jackaudio.org/\n");
54 int
55 main (int argc, char *argv[])
57 jack_client_t *client;
58 jack_status_t status;
59 const char **ports, **connections;
60 unsigned int i, j, k;
61 int skip_port;
62 int show_aliases = 0;
63 int show_con = 0;
64 int show_port_latency = 0;
65 int show_total_latency = 0;
66 int show_properties = 0;
67 int show_type = 0;
68 int c;
69 int option_index;
70 char* aliases[2];
71 jack_port_t *port;
73 struct option long_options[] = {
74 { "aliases", 0, 0, 'A' },
75 { "connections", 0, 0, 'c' },
76 { "port-latency", 0, 0, 'l' },
77 { "total-latency", 0, 0, 'L' },
78 { "properties", 0, 0, 'p' },
79 { "type", 0, 0, 't' },
80 { "help", 0, 0, 'h' },
81 { "version", 0, 0, 'v' },
82 { 0, 0, 0, 0 }
85 my_name = strrchr(argv[0], '/');
86 if (my_name == 0) {
87 my_name = argv[0];
88 } else {
89 my_name ++;
92 while ((c = getopt_long (argc, argv, "AclLphvt", long_options, &option_index)) >= 0) {
93 switch (c) {
94 case 'A':
95 aliases[0] = (char *) malloc (jack_port_name_size());
96 aliases[1] = (char *) malloc (jack_port_name_size());
97 show_aliases = 1;
98 break;
99 case 'c':
100 show_con = 1;
101 break;
102 case 'l':
103 show_port_latency = 1;
104 break;
105 case 'L':
106 show_total_latency = 1;
107 break;
108 case 'p':
109 show_properties = 1;
110 break;
111 case 't':
112 show_type = 1;
113 break;
114 case 'h':
115 show_usage ();
116 return 1;
117 break;
118 case 'v':
119 show_version ();
120 return 1;
121 break;
122 default:
123 show_usage ();
124 return 1;
125 break;
129 /* Open a client connection to the JACK server. Starting a
130 * new server only to list its ports seems pointless, so we
131 * specify JackNoStartServer. */
132 //JOQ: need a new server name option
134 client = jack_client_open ("lsp", JackNoStartServer, &status);
135 if (client == NULL) {
136 if (status & JackServerFailed) {
137 fprintf (stderr, "JACK server not running\n");
138 } else {
139 fprintf (stderr, "jack_client_open() failed, "
140 "status = 0x%2.0x\n", status);
142 return 1;
145 ports = jack_get_ports (client, NULL, NULL, 0);
146 if (!ports)
147 goto error;
149 for (i = 0; ports[i]; ++i) {
150 // skip over any that don't match ALL of the strings presented at command line
151 skip_port = 0;
152 for(k = optind; k < argc; k++){
153 if(strstr(ports[i], argv[k]) == NULL ){
154 skip_port = 1;
157 if (skip_port) continue;
159 printf ("%s\n", ports[i]);
160 port = jack_port_by_name (client, ports[i]);
162 if (show_aliases) {
163 int cnt;
164 int i;
166 cnt = jack_port_get_aliases (port, aliases);
167 for (i = 0; i < cnt; ++i) {
168 printf (" %s\n", aliases[i]);
172 if (show_con) {
173 if ((connections = jack_port_get_all_connections (client, jack_port_by_name(client, ports[i]))) != 0) {
174 for (j = 0; connections[j]; j++) {
175 printf (" %s\n", connections[j]);
177 free (connections);
180 if (show_port_latency) {
181 if (port) {
182 printf (" port latency = %d frames\n",
183 jack_port_get_latency (port));
186 if (show_total_latency) {
187 if (port) {
188 printf (" total latency = %d frames\n",
189 jack_port_get_total_latency (client, port));
192 if (show_properties) {
193 if (port) {
194 int flags = jack_port_flags (port);
195 printf (" properties: ");
196 if (flags & JackPortIsInput) {
197 fputs ("input,", stdout);
199 if (flags & JackPortIsOutput) {
200 fputs ("output,", stdout);
202 if (flags & JackPortCanMonitor) {
203 fputs ("can-monitor,", stdout);
205 if (flags & JackPortIsPhysical) {
206 fputs ("physical,", stdout);
208 if (flags & JackPortIsTerminal) {
209 fputs ("terminal,", stdout);
212 if (flags & JackPortIsActive) {
213 fputs ("active,", stdout);
214 } else {
215 fputs ("non-active,", stdout);
217 putc ('\n', stdout);
220 if (show_type) {
221 if (port) {
222 putc ('\t', stdout);
223 fputs (jack_port_type (port), stdout);
224 putc ('\n', stdout);
229 error:
230 jack_client_close (client);
231 exit (0);