1 /* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
4 * We are making the OpenFlow specification and associated documentation
5 * (Software) available for public use and benefit with the expectation
6 * that others will use, modify and enhance the Software and contribute
7 * those enhancements back to the community. However, since we would
8 * like to make the Software available for broadest use, with as few
9 * restrictions as possible permission is hereby granted, free of
10 * charge, to any person obtaining a copy of this Software to deal in
11 * the Software under the copyrights without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
24 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
25 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
26 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
29 * The name and trademarks of copyright holder(s) may NOT be used in
30 * advertising or publicity pertaining to the Software or any
31 * derivatives without specific, written prior permission.
43 #include "command-line.h"
46 #include "vlog-socket.h"
49 usage(char *prog_name, int exit_code)
51 printf("Usage: %s [TARGET] [ACTION...]\n"
53 " -a, --all Apply to all targets (default)\n"
54 " -t, --target=TARGET Specify target program, as a pid or an\n"
55 " absolute path to a Unix domain socket\n"
57 " -l, --list List current settings\n"
58 " -s, --set=MODULE[:FACILITY[:LEVEL]]\n"
59 " Set MODULE and FACILITY log level to LEVEL\n"
60 " MODULE may be any valid module name or 'ANY'\n"
61 " FACILITY may be 'syslog' or 'console' or 'ANY' (default)\n"
62 " LEVEL may be 'emer', 'err', 'warn', or 'dbg (default)'\n"
63 " -h, --help Print this helpful information\n",
69 transact(struct vlog_client *client, const char *request, bool *ok)
72 int error = vlog_client_transact(client, request, &reply);
74 fprintf(stderr, "%s: transaction error: %s\n",
75 vlog_client_target(client), strerror(error));
78 return reply ? reply : xstrdup("");
82 transact_ack(struct vlog_client *client, const char* request, bool *ok)
85 int error = vlog_client_transact(client, request, &reply);
87 fprintf(stderr, "%s: transaction error: %s\n",
88 vlog_client_target(client), strerror(error));
90 } else if (strcmp(reply, "ack")) {
91 fprintf(stderr, "Received unexpected reply from %s: %s\n",
92 vlog_client_target(client), reply);
99 add_target(struct vlog_client ***clients, size_t *n_clients,
100 const char *path, bool *ok)
102 struct vlog_client *client;
103 int error = vlog_client_connect(path, &client);
105 fprintf(stderr, "Error connecting to \"%s\": %s\n",
106 path, strerror(error));
109 *clients = xrealloc(*clients, sizeof *clients * (*n_clients + 1));
110 (*clients)[*n_clients] = client;
116 add_all_targets(struct vlog_client ***clients, size_t *n_clients, bool *ok)
121 directory = opendir("/tmp");
123 fprintf(stderr, "/tmp: opendir: %s\n", strerror(errno));
126 while ((de = readdir(directory)) != NULL) {
127 if (!strncmp(de->d_name, "vlogs.", 5)) {
128 char *path = xasprintf("/tmp/%s", de->d_name);
129 add_target(clients, n_clients, path, ok);
137 int main(int argc, char *argv[])
139 static const struct option long_options[] = {
140 /* Target options must come first. */
141 {"all", no_argument, NULL, 'a'},
142 {"target", required_argument, NULL, 't'},
143 {"help", no_argument, NULL, 'h'},
145 /* Action options come afterward. */
146 {"list", no_argument, NULL, 'l'},
147 {"set", required_argument, NULL, 's'},
152 /* Determine targets. */
155 struct vlog_client **clients = NULL;
156 size_t n_clients = 0;
158 set_program_name(argv[0]);
160 short_options = long_options_to_short_options(long_options);
165 option = getopt_long(argc, argv, short_options, long_options, NULL);
169 if (!strchr("ath", option) && n_clients == 0) {
170 fatal(0, "no targets specified (use --help for help)");
176 add_all_targets(&clients, &n_clients, &ok);
180 add_target(&clients, &n_clients, optarg, &ok);
184 for (i = 0; i < n_clients; i++) {
185 struct vlog_client *client = clients[i];
188 printf("%s:\n", vlog_client_target(client));
189 reply = transact(client, "list", &ok);
190 fputs(reply, stdout);
196 for (i = 0; i < n_clients; i++) {
197 struct vlog_client *client = clients[i];
198 char *request = xasprintf("set %s", optarg);
199 transact_ack(client, request, &ok);
205 usage(argv[0], EXIT_SUCCESS);
214 "warning: no actions specified (use --help for help)\n");