![Alan Jenkins](/assets/img/avatar_default.png)
Picked up by "gcc -Wextra". udevadm.c:83: warning: initialized field overwritten udevadm.c:83: warning: (near initialization for ‘cmds[2].help’) This is just a cleanup. It doesn't change the code generated by gcc.
220 lines
4.9 KiB
C
220 lines
4.9 KiB
C
/*
|
|
* Copyright (C) 2007-2008 Kay Sievers <kay.sievers@vrfy.org>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <getopt.h>
|
|
|
|
#include "udev.h"
|
|
|
|
static int debug;
|
|
|
|
static void log_fn(struct udev *udev, int priority,
|
|
const char *file, int line, const char *fn,
|
|
const char *format, va_list args)
|
|
{
|
|
if (debug) {
|
|
fprintf(stderr, "%s: ", fn);
|
|
vfprintf(stderr, format, args);
|
|
} else {
|
|
vsyslog(priority, format, args);
|
|
}
|
|
}
|
|
|
|
struct command {
|
|
const char *name;
|
|
int (*cmd)(struct udev *udev, int argc, char *argv[]);
|
|
const char *help;
|
|
int debug;
|
|
};
|
|
|
|
static const struct command cmds[];
|
|
|
|
static int version(struct udev *udev, int argc, char *argv[])
|
|
{
|
|
printf("%s\n", VERSION);
|
|
return 0;
|
|
}
|
|
|
|
static int help(struct udev *udev, int argc, char *argv[])
|
|
{
|
|
const struct command *cmd;
|
|
|
|
printf("Usage: udevadm [--help] [--version] [--debug] COMMAND [COMMAND OPTIONS]\n");
|
|
for (cmd = cmds; cmd->name != NULL; cmd++)
|
|
if (cmd->help != NULL)
|
|
printf(" %-12s %s\n", cmd->name, cmd->help);
|
|
printf("\n");
|
|
return 0;
|
|
}
|
|
|
|
static const struct command cmds[] = {
|
|
{
|
|
.name = "info",
|
|
.cmd = udevadm_info,
|
|
.help = "query sysfs or the udev database",
|
|
},
|
|
{
|
|
.name = "trigger",
|
|
.cmd = udevadm_trigger,
|
|
.help = "request events from the kernel",
|
|
},
|
|
{
|
|
.name = "settle",
|
|
.cmd = udevadm_settle,
|
|
.help = "wait for the event queue to finish",
|
|
},
|
|
{
|
|
.name = "control",
|
|
.cmd = udevadm_control,
|
|
.help = "control the udev daemon",
|
|
},
|
|
{
|
|
.name = "monitor",
|
|
.cmd = udevadm_monitor,
|
|
.help = "listen to kernel and udev events",
|
|
},
|
|
{
|
|
.name = "test",
|
|
.cmd = udevadm_test,
|
|
.help = "simulation run",
|
|
.debug = 1,
|
|
},
|
|
{
|
|
.name = "version",
|
|
.cmd = version,
|
|
},
|
|
{
|
|
.name = "help",
|
|
.cmd = help,
|
|
},
|
|
{}
|
|
};
|
|
|
|
static int run_command(struct udev *udev, const struct command *cmd, int argc, char *argv[])
|
|
{
|
|
if (cmd->debug) {
|
|
debug = 1;
|
|
if (udev_get_log_priority(udev) < LOG_INFO)
|
|
udev_set_log_priority(udev, LOG_INFO);
|
|
}
|
|
info(udev, "calling: %s\n", cmd->name);
|
|
return cmd->cmd(udev, argc, argv);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct udev *udev;
|
|
static const struct option options[] = {
|
|
{ "debug", no_argument, NULL, 'd' },
|
|
{ "help", no_argument, NULL, 'h' },
|
|
{ "version", no_argument, NULL, 'V' },
|
|
{}
|
|
};
|
|
const char *command;
|
|
int i;
|
|
const char *pos;
|
|
int rc = 1;
|
|
|
|
udev = udev_new();
|
|
if (udev == NULL)
|
|
goto out;
|
|
|
|
logging_init("udevadm");
|
|
udev_set_log_fn(udev, log_fn);
|
|
udev_selinux_init(udev);
|
|
|
|
/* see if we are a compat link, this will be removed in a future release */
|
|
command = argv[0];
|
|
pos = strrchr(command, '/');
|
|
if (pos != NULL)
|
|
command = &pos[1];
|
|
|
|
/* the trailing part of the binary or link name is the command */
|
|
if (strncmp(command, "udev", 4) == 0)
|
|
command = &command[4];
|
|
|
|
for (i = 0; cmds[i].cmd != NULL; i++) {
|
|
if (strcmp(cmds[i].name, command) == 0) {
|
|
char path[128];
|
|
char prog[512];
|
|
ssize_t len;
|
|
|
|
snprintf(path, sizeof(path), "/proc/%lu/exe", (unsigned long) getppid());
|
|
len = readlink(path, prog, sizeof(prog));
|
|
if (len > 0) {
|
|
prog[len] = '\0';
|
|
fprintf(stderr, "the program '%s' called '%s', it should use 'udevadm %s <options>', "
|
|
"this will stop working in a future release\n", prog, argv[0], command);
|
|
err(udev, "the program '%s' called '%s', it should use 'udevadm %s <options>', "
|
|
"this will stop working in a future release\n", prog, argv[0], command);
|
|
}
|
|
rc = run_command(udev, &cmds[i], argc, argv);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
while (1) {
|
|
int option;
|
|
|
|
option = getopt_long(argc, argv, "+dhV", options, NULL);
|
|
if (option == -1)
|
|
break;
|
|
|
|
switch (option) {
|
|
case 'd':
|
|
debug = 1;
|
|
if (udev_get_log_priority(udev) < LOG_INFO)
|
|
udev_set_log_priority(udev, LOG_INFO);
|
|
break;
|
|
case 'h':
|
|
rc = help(udev, argc, argv);
|
|
goto out;
|
|
case 'V':
|
|
rc = version(udev, argc, argv);
|
|
goto out;
|
|
default:
|
|
goto out;
|
|
}
|
|
}
|
|
command = argv[optind];
|
|
|
|
if (command != NULL)
|
|
for (i = 0; cmds[i].cmd != NULL; i++) {
|
|
if (strcmp(cmds[i].name, command) == 0) {
|
|
argc -= optind;
|
|
argv += optind;
|
|
optind = 0;
|
|
rc = run_command(udev, &cmds[i], argc, argv);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
fprintf(stderr, "missing or unknown command\n\n");
|
|
help(udev, argc, argv);
|
|
rc = 2;
|
|
out:
|
|
udev_selinux_exit(udev);
|
|
udev_unref(udev);
|
|
logging_close();
|
|
return rc;
|
|
}
|