--- /dev/null
+--- udev-081/udevsynthesize.c.orig 2006-01-29 12:22:45.000000000 +0100
++++ udev-081/udevsynthesize.c 2006-01-29 12:22:40.000000000 +0100
+@@ -0,0 +1,763 @@
++/*
++ * udevcoldplug.c
++ *
++ * Copyright (C) 2005 SUSE Linux Products GmbH
++ *
++ * Author:
++ * Kay Sievers <kay.sievers@vrfy.org>
++ *
++ * Synthesize kernel events from sysfs information and pass them
++ * to the udevd daemon.
++ *
++ * 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 <stddef.h>
++#include <string.h>
++#include <stdio.h>
++#include <unistd.h>
++#include <errno.h>
++#include <ctype.h>
++#include <fcntl.h>
++#include <dirent.h>
++#include <signal.h>
++#include <syslog.h>
++#include <sys/socket.h>
++#include <sys/un.h>
++#include <sys/wait.h>
++#include <sys/stat.h>
++#include <sys/types.h>
++
++#include "udev_libc_wrapper.h"
++#include "udev.h"
++#include "udevd.h"
++#include "udev_version.h"
++#include "logging.h"
++
++#include "list.h"
++
++#ifndef DT_DIR
++#define DT_DIR 4
++#endif
++
++static const char *udev_log_str;
++static int udevd_sock = -1;
++
++#ifdef USE_LOG
++void log_message(int priority, const char *format, ...)
++{
++ va_list args;
++
++ if (priority > udev_log_priority)
++ return;
++
++ va_start(args, format);
++ vsyslog(priority, format, args);
++ va_end(args);
++}
++#endif
++
++struct device {
++ struct list_head node;
++ struct udevd_msg msg;
++ size_t bufpos;
++ char *path;
++};
++
++static dev_t read_devt(const char *path)
++{
++ char filename[PATH_SIZE];
++ char majorminor[64];
++ unsigned int major, minor;
++ ssize_t count;
++ int fd;
++
++ snprintf(filename, sizeof(filename), "%s/%s", path, "dev");
++ filename[sizeof(filename)-1] = '\0';
++
++ fd = open(filename, O_RDONLY);
++ if (fd < 0)
++ return 0;
++
++ count = read(fd, majorminor, sizeof(majorminor));
++ close(fd);
++ majorminor[count] = '\0';
++ if (sscanf(majorminor, "%u:%u", &major, &minor) != 2)
++ return 0;
++ dbg("found major=%d, minor=%d", major, minor);
++
++ return makedev(major, minor);
++}
++
++static ssize_t read_file(const char *directory, const char *file, char *str, size_t len)
++{
++ char filename[PATH_SIZE];
++ ssize_t count;
++ int fd;
++
++ memset(filename, 0, sizeof(filename));
++ snprintf(filename, sizeof(filename), "%s/%s", directory, file);
++ filename[sizeof(filename)-1] = '\0';
++
++ fd = open(filename, O_RDONLY);
++ if (fd < 0)
++ return -1;
++
++ count = read(fd, str, len-1);
++ close(fd);
++
++ if (count > (ssize_t)len)
++ count = len;
++ str[count-1] = '\0';
++
++ return count;
++}
++
++static ssize_t read_link(const char *directory, const char *file, char *str, size_t size)
++{
++ char filename[PATH_SIZE];
++ char target[PATH_SIZE];
++ int len;
++ char *back;
++ char *strip;
++ int level = 1;
++
++ snprintf(filename, sizeof(filename), "%s/%s", directory, file);
++ filename[sizeof(filename)-1] = '\0';
++
++ len = readlink(filename, target, sizeof(target)-1);
++ if (len < 0)
++ return -1;
++ target[len] = '\0';
++
++ back = target;
++ while (strncmp(back, "../", 3) == 0) {
++ back += 3;
++ level++;
++ }
++ while(level--) {
++ strip = strrchr(filename, '/');
++ if (!strip)
++ return -1;
++ strip[0] = '\0';
++ }
++
++ snprintf(str, size, "%s/%s", filename, back);
++ str[size-1] = '\0';
++
++ return len;
++}
++
++static char *add_env_key(struct device *device, const char *key, const char *value)
++{
++ size_t pos = device->bufpos;
++ device->bufpos += sprintf(&device->msg.envbuf[device->bufpos], "%s=%s", key, value)+1;
++ return &device->msg.envbuf[pos];
++}
++
++static struct device *device_create(const char *path, const char *subsystem, dev_t devt)
++{
++ struct device *device;
++ const char *devpath = &path[strlen(sysfs_path)];
++ char target[PATH_SIZE];
++
++ device = malloc(sizeof(struct device));
++ if (device == NULL) {
++ dbg("error malloc");
++ return NULL;
++ }
++ memset(device, 0x00, sizeof(struct device));
++
++ device->path = add_env_key(device, "DEVPATH", devpath);
++ device->path += strlen("DEVPATH=");
++ add_env_key(device, "SUBSYSTEM", subsystem);
++ add_env_key(device, "ACTION", "add");
++ add_env_key(device, "UDEV_COLDPLUG", "1");
++
++ if (major(devt)) {
++ char number[32];
++ sprintf(number, "%u", major(devt));
++ add_env_key(device, "MAJOR", number);
++ sprintf(number, "%u", minor(devt));
++ add_env_key(device, "MINOR", number);
++ }
++
++ if (strncmp(devpath, "/block/", strlen("/block/")) == 0 ||
++ strncmp(devpath, "/class/", strlen("/class/")) == 0) {
++ char physpath[PATH_SIZE];
++
++ if (read_link(path, "device", physpath, sizeof(physpath)) > (ssize_t)strlen(sysfs_path)) {
++ add_env_key(device, "PHYSDEVPATH", &physpath[strlen(sysfs_path)]);
++ if (read_link(physpath, "driver", target, sizeof(target)) > (ssize_t)strlen(sysfs_path)) {
++ char *pos = strrchr(target, '/');
++ if (pos)
++ add_env_key(device, "PHYSDEVDRIVER", &pos[1]);
++ }
++ if (read_link(physpath, "bus", target, sizeof(target)) > (ssize_t)strlen(sysfs_path)) {
++ char *pos = strrchr(target, '/');
++ if (pos)
++ add_env_key(device, "PHYSDEVBUS", &pos[1]);
++ }
++ }
++ } else if (strncmp(devpath, "/devices/", strlen("/devices/")) == 0) {
++ if (read_link(path, "driver", target, sizeof(target)) > (ssize_t)strlen(sysfs_path)) {
++ char *pos = strrchr(target, '/');
++ if (pos)
++ add_env_key(device, "PHYSDEVDRIVER", &pos[1]);
++ }
++ if (read_link(path, "bus", target, sizeof(target)) > (ssize_t)strlen(sysfs_path)) {
++ char *pos = strrchr(target, '/');
++ if (pos)
++ add_env_key(device, "PHYSDEVBUS", &pos[1]);
++ }
++ }
++
++ return device;
++}
++
++static int device_list_insert(struct list_head *device_list, struct device *device)
++{
++ struct device *loop_device;
++
++ dbg("insert: '%s'", device->path);
++
++ /* sort files in lexical order */
++ list_for_each_entry(loop_device, device_list, node)
++ if (strcmp(loop_device->path, device->path) > 0)
++ break;
++
++ list_add_tail(&device->node, &loop_device->node);
++
++ return 0;
++}
++
++static int add_device_udevd(struct device *device)
++{
++ size_t msg_len;
++ struct sockaddr_un saddr;
++ socklen_t addrlen;
++ int retval;
++
++ memset(&saddr, 0x00, sizeof(struct sockaddr_un));
++ saddr.sun_family = AF_LOCAL;
++ /* use abstract namespace for socket path */
++ strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH);
++ addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
++
++ strcpy(device->msg.magic, UDEV_MAGIC);
++ device->msg.type = UDEVD_UEVENT_UDEVSEND;
++
++ msg_len = offsetof(struct udevd_msg, envbuf) + device->bufpos;
++ dbg("msg_len=%i", msg_len);
++
++ retval = sendto(udevd_sock, &device->msg, msg_len, 0, (struct sockaddr *)&saddr, addrlen);
++ if (retval < 0)
++ return -1;
++
++ return 0;
++}
++
++static void exec_list(struct list_head *device_list, const char *first[], const char *last[])
++{
++ struct device *loop_device;
++ struct device *tmp_device;
++ int i;
++
++ /* handle the "first" type devices first */
++ if (first)
++ list_for_each_entry_safe(loop_device, tmp_device, device_list, node) {
++ for (i = 0; first[i] != NULL; i++) {
++ if (strncmp(loop_device->path, first[i], strlen(first[i])) == 0) {
++ add_device_udevd(loop_device);
++ list_del(&loop_device->node);
++ free(loop_device);
++ break;
++ }
++ }
++ }
++
++ /* handle the devices we are allowed to, excluding the "last" type devices */
++ if (last)
++ list_for_each_entry_safe(loop_device, tmp_device, device_list, node) {
++ int found = 0;
++ for (i = 0; last[i] != NULL; i++) {
++ if (strncmp(loop_device->path, last[i], strlen(last[i])) == 0) {
++ found = 1;
++ break;
++ }
++ }
++ if (found)
++ continue;
++
++ add_device_udevd(loop_device);
++ list_del(&loop_device->node);
++ free(loop_device);
++ }
++
++ /* handle the rest of the devices */
++ list_for_each_entry_safe(loop_device, tmp_device, device_list, node) {
++ add_device_udevd(loop_device);
++ list_del(&loop_device->node);
++ free(loop_device);
++ }
++}
++
++static int udev_scan_class(void)
++{
++ char base[PATH_SIZE];
++ DIR *dir;
++ struct dirent *dent;
++ LIST_HEAD(device_list);
++
++ /* we want /dev/null and /dev/console first */
++ const char *first[] = {
++ "/class/mem",
++ "/class/tty",
++ NULL,
++ };
++
++ snprintf(base, sizeof(base), "%s/class", sysfs_path);
++ base[sizeof(base)-1] = '\0';
++
++ dir = opendir(base);
++ if (!dir)
++ return -1;
++
++ for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
++ char dirname[PATH_SIZE];
++ DIR *dir2;
++ struct dirent *dent2;
++
++ if (dent->d_name[0] == '.')
++ continue;
++
++ snprintf(dirname, sizeof(dirname), "%s/%s", base, dent->d_name);
++ dirname[sizeof(dirname)-1] = '\0';
++
++ dir2 = opendir(dirname);
++ if (!dir2)
++ continue;
++ for (dent2 = readdir(dir2); dent2 != NULL; dent2 = readdir(dir2)) {
++ char dirname2[PATH_SIZE];
++ struct device *device;
++ dev_t devt;
++
++ if (dent2->d_name[0] == '.')
++ continue;
++ if (dent2->d_type != DT_DIR)
++ continue;
++
++ snprintf(dirname2, sizeof(dirname2), "%s/%s", dirname, dent2->d_name);
++ dirname2[sizeof(dirname2)-1] = '\0';
++ devt = read_devt(dirname2);
++ device = device_create(dirname2, dent->d_name, devt);
++
++ if (strcmp(dent->d_name, "net") == 0 ||
++ strcmp(dent->d_name, "bluetooth") == 0) {
++ add_env_key(device, "INTERFACE", dent2->d_name);
++ } else if (strcmp(dent->d_name, "pcmcia_socket") == 0 &&
++ strlen(dent->d_name) > 14) {
++ add_env_key(device, "SOCKET_NO",
++ dent2->d_name + 14);
++ }
++
++ device_list_insert(&device_list, device);
++ }
++ closedir(dir2);
++ }
++ closedir(dir);
++ exec_list(&device_list, first, NULL);
++
++ return 0;
++}
++
++static int udev_scan_block(void)
++{
++ char base[PATH_SIZE];
++ DIR *dir;
++ struct dirent *dent;
++ LIST_HEAD(device_list);
++
++ /* dm wants to have the block devices around before it */
++ const char *last[] = {
++ "/block/dm",
++ NULL,
++ };
++
++ snprintf(base, sizeof(base), "%s/block", sysfs_path);
++ base[sizeof(base)-1] = '\0';
++
++ dir = opendir(base);
++ if (!dir)
++ return -1;
++
++ for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
++ char dirname[PATH_SIZE];
++ struct device *device;
++ struct dirent *dent2;
++ DIR *dir2;
++ dev_t devt;
++
++ if (dent->d_name[0] == '.')
++ continue;
++ if (dent->d_type != DT_DIR)
++ continue;
++
++ snprintf(dirname, sizeof(dirname), "%s/%s", base, dent->d_name);
++ dirname[sizeof(dirname)-1] = '\0';
++ devt = read_devt(dirname);
++ if (major(devt)) {
++ device = device_create(dirname, "block", devt);
++ device_list_insert(&device_list, device);
++ }
++
++ /* look for partitions */
++ dir2 = opendir(dirname);
++ if (!dir2)
++ continue;
++ for (dent2 = readdir(dir2); dent2 != NULL; dent2 = readdir(dir2)) {
++ char dirname2[PATH_SIZE];
++
++ if (dent2->d_name[0] == '.')
++ continue;
++ if (dent2->d_type != DT_DIR)
++ continue;
++
++ snprintf(dirname2, sizeof(dirname2), "%s/%s", dirname, dent2->d_name);
++ dirname2[sizeof(dirname2)-1] = '\0';
++ devt = read_devt(dirname2);
++ if (major(devt)) {
++ device = device_create(dirname2, "block", devt);
++ device_list_insert(&device_list, device);
++ continue;
++ }
++ }
++ closedir(dir2);
++ }
++ closedir(dir);
++ exec_list(&device_list, NULL, last);
++
++ return 0;
++}
++
++static int pci_handler(struct device *device)
++{
++ char path[PATH_SIZE];
++ char value[PATH_SIZE];
++ char vendor[PATH_SIZE];
++ char product[PATH_SIZE];
++ const char *name;
++
++ snprintf(path, sizeof(path), "%s%s", sysfs_path, device->path);
++ path[sizeof(path)-1] = '\0';
++
++ if (read_file(path, "modalias", value, sizeof(value)) > 0)
++ add_env_key(device, "MODALIAS", value);
++
++ name = strrchr(device->path, '/');
++ if (name)
++ add_env_key(device, "PCI_SLOT_NAME", &name[1]);
++
++ if (read_file(path, "class", value, sizeof(value)) > 0)
++ add_env_key(device, "PCI_CLASS", &value[2]);
++
++ if (read_file(path, "vendor", vendor, sizeof(vendor)) > 0 &&
++ read_file(path, "device", product, sizeof(product)) > 0) {
++ snprintf(value, sizeof(value), "%s:%s", &vendor[2], &product[2]);
++ path[sizeof(value)-1] = '\0';
++ add_env_key(device, "PCI_ID", value);
++ }
++
++ if (read_file(path, "subsystem_vendor", vendor, sizeof(vendor)) > 0 &&
++ read_file(path, "subsystem_device", product, sizeof(product)) > 0) {
++ snprintf(value, sizeof(value), "%s:%s", &vendor[2], &product[2]);
++ path[sizeof(value)-1] = '\0';
++ add_env_key(device, "PCI_SUBSYS_ID", value);
++ }
++
++ return 0;
++}
++
++static int usb_handler(struct device *device)
++{
++ char path[PATH_SIZE];
++ char value[PATH_SIZE];
++ char str1[PATH_SIZE];
++ char str2[PATH_SIZE];
++ char str3[PATH_SIZE];
++ unsigned int int1;
++ unsigned int int2;
++ unsigned int int3;
++ char *pos;
++
++ snprintf(path, sizeof(path), "%s%s", sysfs_path, device->path);
++ path[sizeof(path)-1] = '\0';
++
++ /* device events have : in their directory name */
++ pos = strrchr(path, '/');
++ if (!strchr(pos, ':'))
++ return 0; /* and do not have other variables */
++
++ if (read_file(path, "modalias", value, sizeof(value)) > 0)
++ add_env_key(device, "MODALIAS", value);
++
++ if (read_file(path, "bInterfaceClass", str1, sizeof(str1)) > 0 &&
++ read_file(path, "bInterfaceSubClass", str2, sizeof(str2)) > 0 &&
++ read_file(path, "bInterfaceProtocol", str3, sizeof(str3)) > 0) {
++ int1 = (int) strtol(str1, NULL, 16);
++ int2 = (int) strtol(str2, NULL, 16);
++ int3 = (int) strtol(str3, NULL, 16);
++ snprintf(value, sizeof(value), "%u/%u/%u", int1, int2, int3);
++ path[sizeof(value)-1] = '\0';
++ add_env_key(device, "INTERFACE", value);
++ }
++
++ /* move to the parent directory */
++ pos[0] = '\0';
++
++ if (read_file(path, "idVendor", str1, sizeof(str1)) > 0 &&
++ read_file(path, "idProduct", str2, sizeof(str2)) > 0 &&
++ read_file(path, "bcdDevice", str3, sizeof(str3)) > 0) {
++ int1 = (int) strtol(str1, NULL, 16);
++ int2 = (int) strtol(str2, NULL, 16);
++ int3 = (int) strtol(str3, NULL, 16);
++ snprintf(value, sizeof(value), "%x/%x/%x", int1, int2, int3);
++ path[sizeof(value)-1] = '\0';
++ add_env_key(device, "PRODUCT", value);
++ }
++
++ if (read_file(path, "bDeviceClass", str1, sizeof(str1)) > 0 &&
++ read_file(path, "bDeviceSubClass", str2, sizeof(str2)) > 0 &&
++ read_file(path, "bDeviceProtocol", str3, sizeof(str3)) > 0) {
++ int1 = (int) strtol(str1, NULL, 16);
++ int2 = (int) strtol(str2, NULL, 16);
++ int3 = (int) strtol(str3, NULL, 16);
++ snprintf(value, sizeof(value), "%u/%u/%u", int1, int2, int3);
++ path[sizeof(value)-1] = '\0';
++ add_env_key(device, "TYPE", value);
++ }
++
++ if (read_file(path, "devnum", str2, sizeof(str2)) > 0) {
++ pos = strrchr(path, 'b');
++ int1 = (int) strtol(pos + 1, NULL, 16);
++ int2 = (int) strtol(str2, NULL, 16);
++ snprintf(value, sizeof(value),
++ "/proc/bus/usb/%03d/%03d", int1, int2);
++ path[sizeof(value)-1] = '\0';
++ add_env_key(device, "DEVICE", value);
++ }
++
++ return 0;
++}
++
++static int serio_handler(struct device *device)
++{
++ char path[PATH_SIZE];
++ char value[PATH_SIZE];
++
++ snprintf(path, sizeof(path), "%s%s", sysfs_path, device->path);
++ path[sizeof(path)-1] = '\0';
++
++ if (read_file(path, "modalias", value, sizeof(value)) > 0)
++ add_env_key(device, "MODALIAS", value);
++
++ if (read_file(path, "id/type", value, sizeof(value)) > 0)
++ add_env_key(device, "SERIO_TYPE", value);
++
++ if (read_file(path, "id/proto", value, sizeof(value)) > 0)
++ add_env_key(device, "SERIO_PROTO", value);
++
++ if (read_file(path, "id/id", value, sizeof(value)) > 0)
++ add_env_key(device, "SERIO_ID", value);
++
++ if (read_file(path, "id/extra", value, sizeof(value)) > 0)
++ add_env_key(device, "SERIO_EXTRA", value);
++
++ return 0;
++}
++
++static int ccw_handler(struct device *device)
++{
++ char path[PATH_SIZE];
++ char value[PATH_SIZE], *tmp;
++
++ snprintf(path, sizeof(path), "%s%s", sysfs_path, device->path);
++ path[sizeof(path)-1] = '\0';
++
++ if (read_file(path, "modalias", value, sizeof(value)) > 0)
++ add_env_key(device, "MODALIAS", value);
++
++ if (read_file(path, "cutype", value, sizeof(value)) > 0) {
++ value[4] = 0;
++ tmp = &value[5];
++ add_env_key(device, "CU_TYPE", value);
++ add_env_key(device, "CU_MODEL", tmp);
++ }
++
++ if (read_file(path, "devtype", value, sizeof(value)) > 0) {
++ if (value[0] == 'n') {
++ add_env_key(device, "DEV_TYPE", "0000");
++ add_env_key(device, "DEV_MODEL", "00");
++ }
++ else {
++ value[4] = 0;
++ tmp = &value[5];
++ add_env_key(device, "DEV_TYPE", value);
++ add_env_key(device, "DEV_MODEL", tmp);
++ }
++ }
++
++ return 0;
++}
++
++static int modalias_handler(struct device *device)
++{
++ char path[PATH_SIZE];
++ char value[PATH_SIZE];
++
++ snprintf(path, sizeof(path), "%s%s", sysfs_path, device->path);
++ path[sizeof(path)-1] = '\0';
++
++ if (read_file(path, "modalias", value, sizeof(value)) > 0)
++ add_env_key(device, "MODALIAS", value);
++
++ return 0;
++}
++
++static int udev_scan_bus(const char *bus, int bus_handler(struct device *device))
++{
++ char base[PATH_SIZE];
++ DIR *dir;
++ struct dirent *dent;
++ LIST_HEAD(device_list);
++
++ snprintf(base, sizeof(base), "%s/bus/%s/devices", sysfs_path, bus);
++ base[sizeof(base)-1] = '\0';
++
++ dir = opendir(base);
++ if (!dir)
++ return -1;
++ for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
++ char devpath[PATH_SIZE];
++ struct device *device;
++
++ if (dent->d_name[0] == '.')
++ continue;
++
++ if (read_link(base, dent->d_name, devpath, sizeof(devpath)) < 0)
++ continue;
++
++ device = device_create(devpath, bus, makedev(0, 0));
++ if (bus_handler) {
++ if (bus_handler(device) < 0) {
++ dbg("'%s' bus handler skipped event", devpath);
++ free(device);
++ continue;
++ }
++ }
++
++ device_list_insert(&device_list, device);
++ }
++ closedir(dir);
++ exec_list(&device_list, NULL, NULL);
++
++ return 0;
++}
++
++static int udev_scan_devices(void)
++{
++ char base[PATH_SIZE];
++ DIR *dir;
++ struct dirent *dent;
++
++ snprintf(base, sizeof(base), "%s/bus", sysfs_path);
++ base[sizeof(base)-1] = '\0';
++
++ dir = opendir(base);
++ if (!dir)
++ return -1;
++
++ for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
++ if (dent->d_name[0] == '.')
++ continue;
++ if (dent->d_type != DT_DIR)
++ continue;
++
++ /* add bus specific env values */
++ if (strcmp(dent->d_name, "pci") == 0)
++ udev_scan_bus("pci", pci_handler);
++ else if (strcmp(dent->d_name, "usb") == 0)
++ udev_scan_bus("usb", usb_handler);
++ else if (strcmp(dent->d_name, "serio") == 0)
++ udev_scan_bus("serio", serio_handler);
++ else if (strcmp(dent->d_name, "ccw") == 0)
++ udev_scan_bus("ccw", ccw_handler);
++ else
++ udev_scan_bus(dent->d_name, modalias_handler);
++ }
++ closedir(dir);
++
++ return 0;
++}
++
++int main(int argc, char *argv[], char *envp[])
++{
++ LIST_HEAD(device_list);
++ int i;
++
++ logging_init("udevcoldplug");
++ udev_config_init(); sysfs_init();
++ dbg("version %s", UDEV_VERSION);
++
++ udev_log_str = getenv("UDEV_LOG");
++
++ /* disable all logging if not explicitely requested */
++ if (udev_log_str == NULL)
++ udev_log_priority = 0;
++
++ for (i = 1 ; i < argc; i++) {
++ char *arg = argv[i];
++
++ if (strcmp(arg, "help") == 0 || strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
++ printf("Usage: udevcoldplug \n"
++ " --help print this help text\n\n");
++ exit(0);
++ } else {
++ fprintf(stderr, "unknown option\n\n");
++ exit(1);
++ }
++ }
++
++ udevd_sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
++ if (udevd_sock < 0) {
++ err("error getting socket");
++ return 1;
++ }
++
++ /* create nodes for already available devices */
++ udev_scan_class();
++ udev_scan_block();
++
++ /* synthesize events for bus devices
++ * may load modules or configure the device */
++ udev_scan_devices();
++
++ if (udevd_sock >= 0)
++ close(udevd_sock);
++ logging_close();
++
++ return 0;
++}
+--- udev-081/Makefile
++++ udev-081/Makefile
+@@ -58,6 +58,7 @@ PROGRAMS = \
+ udevmonitor \
+ udevinfo \
+ udevtest \
++ udevsynthesize \
+ udevstart
+
+ HEADERS = \
