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#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#include <assert.h>
#include <getopt.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <waiter/waiter.h>
#include <log/log.h>
#include "udev.h"
#include "user-event.h"
#include "discover-server.h"
#include "device-handler.h"
static void print_version(void)
{
printf("pb-discover (" PACKAGE_NAME ") " PACKAGE_VERSION "\n");
}
static void print_usage(void)
{
print_version();
printf(
"Usage: pb-discover [-h, --help] [-l, --log log-file] [-V, --version]\n");
}
/**
* enum opt_value - Tri-state options variables.
*/
enum opt_value {opt_undef = 0, opt_yes, opt_no};
/**
* struct opts - Values from command line options.
*/
struct opts {
enum opt_value show_help;
const char *log_file;
enum opt_value show_version;
enum opt_value dry_run;
};
/**
* opts_parse - Parse the command line options.
*/
static int opts_parse(struct opts *opts, int argc, char *argv[])
{
static const struct option long_options[] = {
{"help", no_argument, NULL, 'h'},
{"log", required_argument, NULL, 'l'},
{"dry-run", no_argument, NULL, 'n'},
{"version", no_argument, NULL, 'V'},
{ NULL, 0, NULL, 0},
};
static const char short_options[] = "hl:nV";
static const struct opts default_values = {
.log_file = "/var/log/petitboot/pb-discover.log",
.dry_run = opt_no,
};
*opts = default_values;
while (1) {
int c = getopt_long(argc, argv, short_options, long_options,
NULL);
if (c == EOF)
break;
switch (c) {
case 'h':
opts->show_help = opt_yes;
break;
case 'l':
opts->log_file = optarg;
break;
case 'n':
opts->dry_run = opt_yes;
break;
case 'V':
opts->show_version = opt_yes;
break;
default:
opts->show_help = opt_yes;
return -1;
}
}
return optind != argc;
}
static int running;
static void sigint_handler(int __attribute__((unused)) signum)
{
running = 0;
}
int main(int argc, char *argv[])
{
struct device_handler *handler;
struct discover_server *server;
struct waitset *waitset;
struct opts opts;
struct pb_udev *udev;
struct user_event *uev;
if (opts_parse(&opts, argc, argv)) {
print_usage();
return EXIT_FAILURE;
}
if (opts.show_help == opt_yes) {
print_usage();
return EXIT_SUCCESS;
}
if (opts.show_version == opt_yes) {
print_version();
return EXIT_SUCCESS;
}
if (strcmp(opts.log_file, "-")) {
FILE *log = fopen(opts.log_file, "a");
assert(log);
pb_log_set_stream(log);
} else
pb_log_set_stream(stderr);
#if defined(DEBUG)
pb_log_always_flush(1);
#endif
pb_log("--- pb-discover ---\n");
/* we look for closed sockets when we write, so ignore SIGPIPE */
signal(SIGPIPE, SIG_IGN);
signal(SIGINT, sigint_handler);
waitset = waitset_create(NULL);
server = discover_server_init(waitset);
if (!server)
return EXIT_FAILURE;
handler = device_handler_init(server, opts.dry_run == opt_yes);
if (!handler)
return EXIT_FAILURE;
discover_server_set_device_source(server, handler);
udev = udev_init(waitset, handler);
if (!udev)
return EXIT_FAILURE;
uev = user_event_init(waitset, handler);
if (!uev)
return EXIT_FAILURE;
user_event_trigger(uev);
for (running = 1; running;) {
if (waiter_poll(waitset))
break;
}
device_handler_destroy(handler);
waitset_destroy(waitset);
udev_destroy(udev);
pb_log("--- end ---\n");
return EXIT_SUCCESS;
}
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