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/*
* Copyright (C) 2007 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 version 2 of the License.
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#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;
#ifdef USE_LOG
void log_message(int priority, const char *format, ...)
{
va_list args;
if (priority > udev_log_priority)
return;
va_start(args, format);
if (debug) {
vprintf(format, args);
} else
vsyslog(priority, format, args);
va_end(args);
}
#endif
struct command {
const char *name;
int (*cmd)(int argc, char *argv[], char *envp[]);
const char *help;
int debug;
};
static const struct command cmds[];
static int version(int argc, char *argv[], char *envp[])
{
printf("%s\n", UDEV_VERSION);
return 0;
}
static int help(int argc, char *argv[], char *envp[])
{
const struct command *cmd;
printf("Usage: udevadm COMMAND [OPTIONS]\n");
for (cmd = cmds; cmd->name != NULL; cmd++)
printf(" %-12s %s\n", cmd->name, cmd->help);
printf("\n");
return 0;
}
static const struct command cmds[] = {
{
.name = "info",
.cmd = udevinfo,
.help = "query sysfs or the udev database",
},
{
.name = "trigger",
.cmd = udevtrigger,
.help = "request events from the kernel",
},
{
.name = "settle",
.cmd = udevsettle, "",
.help = "wait for the event queue to finish",
},
{
.name = "control",
.cmd = udevcontrol,
.help = "control the udev daemon",
},
{
.name = "monitor",
.cmd = udevmonitor,
.help = "listen to kernel and udev events",
},
{
.name = "test",
.cmd = udevtest,
.help = "simulation run",
.debug = 1,
},
{
.name = "version",
.cmd = version,
.help = "print the version number",
},
{
.name = "help",
.cmd = help,
.help = "print this help text",
},
{}
};
int main(int argc, char *argv[], char *envp[])
{
const char *command;
const char *pos;
const struct command *cmd;
int rc;
/* get binary or symlink name */
pos = strrchr(argv[0], '/');
if (pos != NULL)
command = &pos[1];
else
command = argv[0];
/* the trailing part of the binary or symlink name is the command */
if (strncmp(command, "udev", 4) == 0)
command = &command[4];
if (command == NULL || command[0] == '\0')
goto err_unknown;
/* udevadm itself needs to strip its name from the passed options */
if (strcmp(command, "adm") == 0) {
command = argv[1];
argv++;
argc--;
}
if (command == NULL)
goto err_unknown;
/* allow command to be specified as an option */
if (strncmp(command, "--", 2) == 0)
command += 2;
/* find and execute command */
for (cmd = cmds; cmd->name != NULL; cmd++) {
if (strcmp(cmd->name, command) == 0) {
debug = cmd->debug;
rc = cmd->cmd(argc, argv, envp);
goto out;
}
}
err_unknown:
fprintf(stderr, "unknown command, try help\n\n");
rc = 2;
out:
return rc;
}
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