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/*
* Copyright (c) 2008, 2009 Nicira Networks.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <config.h>
#include "vlog.h"
#include <dirent.h>
#include <errno.h>
#include <getopt.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "command-line.h"
#include "compiler.h"
#include "timeval.h"
#include "unixctl.h"
#include "util.h"
static void
usage(char *prog_name, int exit_code)
{
printf("Usage: %s [TARGET] [ACTION...]\n"
"Targets:\n"
" -t, --target=TARGET Path to Unix domain socket\n"
"Actions:\n"
" -l, --list List current settings\n"
" -s, --set=MODULE[:FACILITY[:LEVEL]]\n"
" Set MODULE and FACILITY log level to LEVEL\n"
" MODULE may be any valid module name or 'ANY'\n"
" FACILITY may be 'syslog', 'console', 'file', or 'ANY' (default)\n"
" LEVEL may be 'emer', 'err', 'warn', 'info', or 'dbg' (default)\n"
" -r, --reopen Make the program reopen its log file\n"
" -e, --execute=COMMAND Execute control COMMAND and print its output\n"
"Other options:\n"
" -h, --help Print this helpful information\n"
" -V, --version Display version information\n",
prog_name);
exit(exit_code);
}
static char *
transact(struct unixctl_client *client, const char *request, bool *ok)
{
int code;
char *reply;
int error = unixctl_client_transact(client, request, &code, &reply);
if (error) {
fprintf(stderr, "%s: transaction error: %s\n",
unixctl_client_target(client), strerror(error));
*ok = false;
return xstrdup("");
} else {
if (code / 100 != 2) {
fprintf(stderr, "%s: server returned reply code %03d\n",
unixctl_client_target(client), code);
}
return reply;
}
}
static void
transact_ack(struct unixctl_client *client, const char *request, bool *ok)
{
free(transact(client, request, ok));
}
static void
execute_command(struct unixctl_client *client, const char *request, bool *ok)
{
int code;
char *reply;
int error = unixctl_client_transact(client, request, &code, &reply);
if (error) {
fprintf(stderr, "%s: transaction error: %s\n",
unixctl_client_target(client), strerror(error));
*ok = false;
} else {
if (code / 100 != 2) {
fprintf(stderr, "%s: server returned reply code %03d\n",
unixctl_client_target(client), code);
fputs(reply, stderr);
*ok = false;
} else {
fputs(reply, stdout);
}
}
}
static void
add_target(struct unixctl_client ***clients, size_t *n_clients,
const char *path, bool *ok)
{
struct unixctl_client *client;
int error = unixctl_client_create(path, &client);
if (error) {
fprintf(stderr, "Error connecting to \"%s\": %s\n",
path, strerror(error));
*ok = false;
} else {
*clients = xrealloc(*clients, sizeof *clients * (*n_clients + 1));
(*clients)[*n_clients] = client;
++*n_clients;
}
}
int main(int argc, char *argv[])
{
static const struct option long_options[] = {
/* Target options must come first. */
{"target", required_argument, NULL, 't'},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'V'},
/* Action options come afterward. */
{"list", no_argument, NULL, 'l'},
{"set", required_argument, NULL, 's'},
{"reopen", no_argument, NULL, 'r'},
{"execute", required_argument, NULL, 'e'},
{0, 0, 0, 0},
};
char *short_options;
/* Determine targets. */
bool ok = true;
int n_actions = 0;
struct unixctl_client **clients = NULL;
size_t n_clients = 0;
set_program_name(argv[0]);
time_init();
short_options = long_options_to_short_options(long_options);
for (;;) {
int option;
size_t i;
option = getopt_long(argc, argv, short_options, long_options, NULL);
if (option == -1) {
break;
}
if (!strchr("thV", option) && n_clients == 0) {
ovs_fatal(0, "no targets specified (use --help for help)");
} else {
++n_actions;
}
switch (option) {
case 't':
add_target(&clients, &n_clients, optarg, &ok);
break;
case 'l':
for (i = 0; i < n_clients; i++) {
struct unixctl_client *client = clients[i];
char *reply;
printf("%s:\n", unixctl_client_target(client));
reply = transact(client, "vlog/list", &ok);
fputs(reply, stdout);
free(reply);
}
break;
case 's':
for (i = 0; i < n_clients; i++) {
struct unixctl_client *client = clients[i];
char *request = xasprintf("vlog/set %s", optarg);
transact_ack(client, request, &ok);
free(request);
}
break;
case 'r':
for (i = 0; i < n_clients; i++) {
struct unixctl_client *client = clients[i];
char *request = xstrdup("vlog/reopen");
transact_ack(client, request, &ok);
free(request);
}
break;
case 'e':
for (i = 0; i < n_clients; i++) {
execute_command(clients[i], optarg, &ok);
}
break;
case 'h':
usage(argv[0], EXIT_SUCCESS);
break;
case 'V':
OVS_PRINT_VERSION(0, 0);
exit(EXIT_SUCCESS);
case '?':
exit(EXIT_FAILURE);
default:
NOT_REACHED();
}
}
if (!n_actions) {
fprintf(stderr,
"warning: no actions specified (use --help for help)\n");
}
exit(ok ? 0 : 1);
}
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