[thirdparty/systemd.git] / udevtest.c

/*
 * udev.c
 *
 * Userspace devfs
 *
 * Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
 *
 *	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.,
 *	675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#include <signal.h>

#include "udev.h"
#include "udev_version.h"
#include "logging.h"
#include "namedev.h"
#include "libsysfs/libsysfs.h"

/* global variables */
char **main_argv;
char **main_envp;

#ifdef LOG
unsigned char logname[42];
void log_message (int level, const char *format, ...)
{
	va_list	args;

//	if (!udev_log)
//		return;

	/* FIXME use level... */
	va_start(args, format);
	vprintf(format, args);
	va_end(args);
	if (format[strlen(format)-1] != '\n')
		printf("\n");
}
#endif

static void sig_handler(int signum)
{
	switch (signum) {
		case SIGINT:
		case SIGTERM:
			exit(20 + signum);
		default:
			dbg("unhandled signal");
	}
}

static inline char *get_action(void)
{
	char *action;

	action = getenv("ACTION");
	return action;
}

static inline char *get_devpath(void)
{
	char *devpath;

	devpath = getenv("DEVPATH");
	return devpath;
}

static inline char *get_seqnum(void)
{
	char *seqnum;

	seqnum = getenv("SEQNUM");
	return seqnum;
}

static char *subsystem_blacklist[] = {
	"net",
	"scsi_host",
	"scsi_device",
	"usb_host",
	"pci_bus",
	"",
};

static int udev_hotplug(int argc, char **argv)
{
	char *devpath;
	char *subsystem;
	int retval = -EINVAL;
	int i;
	struct sigaction act;

	devpath = argv[1];
	if (!devpath) {
		dbg("no devpath?");
		goto exit;
	}
	dbg("looking at '%s'", devpath);

	/* we only care about class devices and block stuff */
	if (!strstr(devpath, "class") &&
	    !strstr(devpath, "block")) {
		dbg("not a block or class device");
		goto exit;
	}

	/* skip blacklisted subsystems */
	subsystem = argv[1];
	i = 0;
	while (subsystem_blacklist[i][0] != '\0') {
		if (strcmp(subsystem, subsystem_blacklist[i]) == 0) {
			dbg("don't care about '%s' devices", subsystem);
			goto exit;
		}
		i++;
	}

	/* initialize our configuration */
	udev_init_config();

	/* set up a default signal handler for now */
	act.sa_handler = sig_handler;
	sigemptyset (&act.sa_mask);
	act.sa_flags = SA_RESTART;
	sigaction(SIGINT, &act, NULL);
	sigaction(SIGTERM, &act, NULL);

	/* initialize the naming deamon */
	namedev_init();

	retval = udev_add_device(devpath, subsystem, 1);

exit:
	if (retval > 0)
		retval = 0;

	return -retval;
}

int main(int argc, char **argv, char **envp)
{
	main_argv = argv;
	main_envp = envp;

	dbg("version %s", UDEV_VERSION);

	return udev_hotplug(argc, argv);
}
Commit	Line	Data
bb051f66 GKH	1	/*
	2	* udev.c
	3	*
	4	* Userspace devfs
	5	*
	6	* Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation version 2 of the License.
	11	*
	12	* This program is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License along
	18	* with this program; if not, write to the Free Software Foundation, Inc.,
	19	* 675 Mass Ave, Cambridge, MA 02139, USA.
	20	*
	21	*/
	22
	23	#include <stdlib.h>
	24	#include <string.h>
	25	#include <stdio.h>
	26	#include <errno.h>
	27	#include <ctype.h>
	28	#include <signal.h>
	29
	30	#include "udev.h"
	31	#include "udev_version.h"
bb051f66 GKH	32	#include "logging.h"
bb051f66 GKH	33	#include "namedev.h"
bb051f66 GKH	34	#include "libsysfs/libsysfs.h"
	35
	36	/* global variables */
	37	char **main_argv;
	38	char **main_envp;
	39
	40	#ifdef LOG
	41	unsigned char logname[42];
	42	void log_message (int level, const char *format, ...)
	43	{
	44	va_list args;
	45
eb10f97f GKH	46	// if (!udev_log)
eb10f97f GKH	47	// return;
bb051f66	48
eb10f97f	49	/* FIXME use level... */
bb051f66	50	va_start(args, format);
eb10f97f	51	vprintf(format, args);
bb051f66	52	va_end(args);
eb10f97f GKH	53	if (format[strlen(format)-1] != '\n')
eb10f97f GKH	54	printf("\n");
bb051f66 GKH	55	}
	56	#endif
	57
	58	static void sig_handler(int signum)
	59	{
	60	switch (signum) {
	61	case SIGINT:
	62	case SIGTERM:
bb051f66 GKH	63	exit(20 + signum);
	64	default:
	65	dbg("unhandled signal");
	66	}
	67	}
	68
	69	static inline char *get_action(void)
	70	{
	71	char *action;
	72
	73	action = getenv("ACTION");
	74	return action;
	75	}
	76
	77	static inline char *get_devpath(void)
	78	{
	79	char *devpath;
	80
	81	devpath = getenv("DEVPATH");
	82	return devpath;
	83	}
	84
	85	static inline char *get_seqnum(void)
	86	{
	87	char *seqnum;
	88
	89	seqnum = getenv("SEQNUM");
	90	return seqnum;
	91	}
	92
	93	static char *subsystem_blacklist[] = {
	94	"net",
	95	"scsi_host",
	96	"scsi_device",
	97	"usb_host",
	98	"pci_bus",
	99	"",
	100	};
	101
	102	static int udev_hotplug(int argc, char **argv)
	103	{
bb051f66 GKH	104	char *devpath;
	105	char *subsystem;
	106	int retval = -EINVAL;
	107	int i;
	108	struct sigaction act;
	109
eb10f97f	110	devpath = argv[1];
bb051f66	111	if (!devpath) {
eb10f97f	112	dbg("no devpath?");
bb051f66 GKH	113	goto exit;
	114	}
	115	dbg("looking at '%s'", devpath);
	116
	117	/* we only care about class devices and block stuff */
	118	if (!strstr(devpath, "class") &&
	119	!strstr(devpath, "block")) {
	120	dbg("not a block or class device");
	121	goto exit;
	122	}
	123
	124	/* skip blacklisted subsystems */
	125	subsystem = argv[1];
	126	i = 0;
	127	while (subsystem_blacklist[i][0] != '\0') {
	128	if (strcmp(subsystem, subsystem_blacklist[i]) == 0) {
	129	dbg("don't care about '%s' devices", subsystem);
	130	goto exit;
	131	}
	132	i++;
	133	}
	134
bb051f66 GKH	135	/* initialize our configuration */
	136	udev_init_config();
	137
bb051f66 GKH	138	/* set up a default signal handler for now */
	139	act.sa_handler = sig_handler;
	140	sigemptyset (&act.sa_mask);
	141	act.sa_flags = SA_RESTART;
	142	sigaction(SIGINT, &act, NULL);
	143	sigaction(SIGTERM, &act, NULL);
	144
	145	/* initialize the naming deamon */
	146	namedev_init();
	147
eb10f97f	148	retval = udev_add_device(devpath, subsystem, 1);
bb051f66 GKH	149
	150	exit:
	151	if (retval > 0)
	152	retval = 0;
	153
	154	return -retval;
	155	}
	156
	157	int main(int argc, char argv, char envp)
	158	{
	159	main_argv = argv;
	160	main_envp = envp;
	161
bb051f66 GKH	162	dbg("version %s", UDEV_VERSION);
	163
	164	return udev_hotplug(argc, argv);
	165	}
	166
	167