struct sysfs_attr {
struct list_head node;
- char path[PATH_SIZE];
+ char path[UTIL_PATH_SIZE];
char *value; /* points to value_local if value is cached */
- char value_local[NAME_SIZE];
+ char value_local[UTIL_NAME_SIZE];
};
+static int resolve_sys_link(struct udev *udev, char *path, size_t size)
+{
+ char link_path[UTIL_PATH_SIZE];
+ char link_target[UTIL_PATH_SIZE];
+
+ int len;
+ int i;
+ int back;
+
+ util_strlcpy(link_path, udev_get_sys_path(udev), sizeof(link_path));
+ util_strlcat(link_path, path, sizeof(link_path));
+ len = readlink(link_path, link_target, sizeof(link_target));
+ if (len <= 0)
+ return -1;
+ link_target[len] = '\0';
+ dbg(udev, "path link '%s' points to '%s'\n", path, link_target);
+
+ for (back = 0; strncmp(&link_target[back * 3], "../", 3) == 0; back++)
+ ;
+ dbg(udev, "base '%s', tail '%s', back %i\n", path, &link_target[back * 3], back);
+ for (i = 0; i <= back; i++) {
+ char *pos = strrchr(path, '/');
+
+ if (pos == NULL)
+ return -1;
+ pos[0] = '\0';
+ }
+ dbg(udev, "after moving back '%s'\n", path);
+ util_strlcat(path, "/", size);
+ util_strlcat(path, &link_target[back * 3], size);
+ return 0;
+}
+
int sysfs_init(void)
{
INIT_LIST_HEAD(&dev_list);
{
char *pos;
- strlcpy(dev->devpath, devpath, sizeof(dev->devpath));
+ util_strlcpy(dev->devpath, devpath, sizeof(dev->devpath));
if (subsystem != NULL)
- strlcpy(dev->subsystem, subsystem, sizeof(dev->subsystem));
+ util_strlcpy(dev->subsystem, subsystem, sizeof(dev->subsystem));
if (driver != NULL)
- strlcpy(dev->driver, driver, sizeof(dev->driver));
+ util_strlcpy(dev->driver, driver, sizeof(dev->driver));
/* set kernel name */
pos = strrchr(dev->devpath, '/');
if (pos == NULL)
return;
- strlcpy(dev->kernel, &pos[1], sizeof(dev->kernel));
+ util_strlcpy(dev->kernel, &pos[1], sizeof(dev->kernel));
dbg(udev, "kernel='%s'\n", dev->kernel);
/* some devices have '!' in their name, change that to '/' */
pos = &dev->kernel[strlen(dev->kernel)];
while (isdigit(pos[-1]))
pos--;
- strlcpy(dev->kernel_number, pos, sizeof(dev->kernel_number));
+ util_strlcpy(dev->kernel_number, pos, sizeof(dev->kernel_number));
dbg(udev, "kernel_number='%s'\n", dev->kernel_number);
}
-int sysfs_resolve_link(struct udev *udev, char *devpath, size_t size)
-{
- char link_path[PATH_SIZE];
- char link_target[PATH_SIZE];
- int len;
- int i;
- int back;
-
- strlcpy(link_path, udev_get_sys_path(udev), sizeof(link_path));
- strlcat(link_path, devpath, sizeof(link_path));
- len = readlink(link_path, link_target, sizeof(link_target));
- if (len <= 0)
- return -1;
- link_target[len] = '\0';
- dbg(udev, "path link '%s' points to '%s'\n", devpath, link_target);
-
- for (back = 0; strncmp(&link_target[back * 3], "../", 3) == 0; back++)
- ;
- dbg(udev, "base '%s', tail '%s', back %i\n", devpath, &link_target[back * 3], back);
- for (i = 0; i <= back; i++) {
- char *pos = strrchr(devpath, '/');
-
- if (pos == NULL)
- return -1;
- pos[0] = '\0';
- }
- dbg(udev, "after moving back '%s'\n", devpath);
- strlcat(devpath, "/", size);
- strlcat(devpath, &link_target[back * 3], size);
- return 0;
-}
-
struct sysfs_device *sysfs_device_get(struct udev *udev, const char *devpath)
{
- char path[PATH_SIZE];
- char devpath_real[PATH_SIZE];
+ char path[UTIL_PATH_SIZE];
+ char devpath_real[UTIL_PATH_SIZE];
struct sysfs_device *dev;
struct sysfs_device *dev_loop;
struct stat statbuf;
- char link_path[PATH_SIZE];
- char link_target[PATH_SIZE];
+ char link_path[UTIL_PATH_SIZE];
+ char link_target[UTIL_PATH_SIZE];
int len;
char *pos;
return NULL;
dbg(udev, "open '%s'\n", devpath);
- strlcpy(devpath_real, devpath, sizeof(devpath_real));
- remove_trailing_chars(devpath_real, '/');
+ util_strlcpy(devpath_real, devpath, sizeof(devpath_real));
+ util_remove_trailing_chars(devpath_real, '/');
if (devpath[0] == '\0' )
return NULL;
}
/* if we got a link, resolve it to the real device */
- strlcpy(path, udev_get_sys_path(udev), sizeof(path));
- strlcat(path, devpath_real, sizeof(path));
+ util_strlcpy(path, udev_get_sys_path(udev), sizeof(path));
+ util_strlcat(path, devpath_real, sizeof(path));
if (lstat(path, &statbuf) != 0) {
dbg(udev, "stat '%s' failed: %s\n", path, strerror(errno));
return NULL;
}
if (S_ISLNK(statbuf.st_mode)) {
- if (sysfs_resolve_link(udev, devpath_real, sizeof(devpath_real)) != 0)
+ if (resolve_sys_link(udev, devpath_real, sizeof(devpath_real)) != 0)
return NULL;
/* now look for device in cache after path translation */
sysfs_device_set_values(udev, dev, devpath_real, NULL, NULL);
/* get subsystem name */
- strlcpy(link_path, udev_get_sys_path(udev), sizeof(link_path));
- strlcat(link_path, dev->devpath, sizeof(link_path));
- strlcat(link_path, "/subsystem", sizeof(link_path));
+ util_strlcpy(link_path, udev_get_sys_path(udev), sizeof(link_path));
+ util_strlcat(link_path, dev->devpath, sizeof(link_path));
+ util_strlcat(link_path, "/subsystem", sizeof(link_path));
len = readlink(link_path, link_target, sizeof(link_target));
if (len > 0) {
/* get subsystem from "subsystem" link */
dbg(udev, "subsystem link '%s' points to '%s'\n", link_path, link_target);
pos = strrchr(link_target, '/');
if (pos != NULL)
- strlcpy(dev->subsystem, &pos[1], sizeof(dev->subsystem));
+ util_strlcpy(dev->subsystem, &pos[1], sizeof(dev->subsystem));
} else if (strstr(dev->devpath, "/drivers/") != NULL) {
- strlcpy(dev->subsystem, "drivers", sizeof(dev->subsystem));
+ util_strlcpy(dev->subsystem, "drivers", sizeof(dev->subsystem));
} else if (strncmp(dev->devpath, "/module/", 8) == 0) {
- strlcpy(dev->subsystem, "module", sizeof(dev->subsystem));
+ util_strlcpy(dev->subsystem, "module", sizeof(dev->subsystem));
} else if (strncmp(dev->devpath, "/subsystem/", 11) == 0) {
pos = strrchr(dev->devpath, '/');
if (pos == &dev->devpath[10])
- strlcpy(dev->subsystem, "subsystem", sizeof(dev->subsystem));
+ util_strlcpy(dev->subsystem, "subsystem", sizeof(dev->subsystem));
} else if (strncmp(dev->devpath, "/class/", 7) == 0) {
pos = strrchr(dev->devpath, '/');
if (pos == &dev->devpath[6])
- strlcpy(dev->subsystem, "subsystem", sizeof(dev->subsystem));
+ util_strlcpy(dev->subsystem, "subsystem", sizeof(dev->subsystem));
} else if (strncmp(dev->devpath, "/bus/", 5) == 0) {
pos = strrchr(dev->devpath, '/');
if (pos == &dev->devpath[4])
- strlcpy(dev->subsystem, "subsystem", sizeof(dev->subsystem));
+ util_strlcpy(dev->subsystem, "subsystem", sizeof(dev->subsystem));
}
/* get driver name */
- strlcpy(link_path, udev_get_sys_path(udev), sizeof(link_path));
- strlcat(link_path, dev->devpath, sizeof(link_path));
- strlcat(link_path, "/driver", sizeof(link_path));
+ util_strlcpy(link_path, udev_get_sys_path(udev), sizeof(link_path));
+ util_strlcat(link_path, dev->devpath, sizeof(link_path));
+ util_strlcat(link_path, "/driver", sizeof(link_path));
len = readlink(link_path, link_target, sizeof(link_target));
if (len > 0) {
link_target[len] = '\0';
dbg(udev, "driver link '%s' points to '%s'\n", link_path, link_target);
pos = strrchr(link_target, '/');
if (pos != NULL)
- strlcpy(dev->driver, &pos[1], sizeof(dev->driver));
+ util_strlcpy(dev->driver, &pos[1], sizeof(dev->driver));
}
dbg(udev, "add to cache 'devpath=%s', subsystem='%s', driver='%s'\n", dev->devpath, dev->subsystem, dev->driver);
struct sysfs_device *sysfs_device_get_parent(struct udev *udev, struct sysfs_device *dev)
{
- char parent_devpath[PATH_SIZE];
+ char parent_devpath[UTIL_PATH_SIZE];
char *pos;
dbg(udev, "open '%s'\n", dev->devpath);
if (dev->parent != NULL)
return dev->parent;
- strlcpy(parent_devpath, dev->devpath, sizeof(parent_devpath));
+ util_strlcpy(parent_devpath, dev->devpath, sizeof(parent_devpath));
dbg(udev, "'%s'\n", parent_devpath);
/* strip last element */
return dev->parent;
device_link:
- strlcpy(parent_devpath, dev->devpath, sizeof(parent_devpath));
- strlcat(parent_devpath, "/device", sizeof(parent_devpath));
- if (sysfs_resolve_link(udev, parent_devpath, sizeof(parent_devpath)) != 0)
+ util_strlcpy(parent_devpath, dev->devpath, sizeof(parent_devpath));
+ util_strlcat(parent_devpath, "/device", sizeof(parent_devpath));
+ if (resolve_sys_link(udev, parent_devpath, sizeof(parent_devpath)) != 0)
return NULL;
/* get parent and remember it */
char *sysfs_attr_get_value(struct udev *udev, const char *devpath, const char *attr_name)
{
- char path_full[PATH_SIZE];
+ char path_full[UTIL_PATH_SIZE];
const char *path;
- char value[NAME_SIZE];
+ char value[UTIL_NAME_SIZE];
struct sysfs_attr *attr_loop;
struct sysfs_attr *attr;
struct stat statbuf;
size_t sysfs_len;
dbg(udev, "open '%s'/'%s'\n", devpath, attr_name);
- sysfs_len = strlcpy(path_full, udev_get_sys_path(udev), sizeof(path_full));
+ sysfs_len = util_strlcpy(path_full, udev_get_sys_path(udev), sizeof(path_full));
if(sysfs_len >= sizeof(path_full))
sysfs_len = sizeof(path_full) - 1;
path = &path_full[sysfs_len];
- strlcat(path_full, devpath, sizeof(path_full));
- strlcat(path_full, "/", sizeof(path_full));
- strlcat(path_full, attr_name, sizeof(path_full));
+ util_strlcat(path_full, devpath, sizeof(path_full));
+ util_strlcat(path_full, "/", sizeof(path_full));
+ util_strlcat(path_full, attr_name, sizeof(path_full));
/* look for attribute in cache */
list_for_each_entry(attr_loop, &attr_list, node) {
if (attr == NULL)
return NULL;
memset(attr, 0x00, sizeof(struct sysfs_attr));
- strlcpy(attr->path, path, sizeof(attr->path));
+ util_strlcpy(attr->path, path, sizeof(attr->path));
dbg(udev, "add to cache '%s'\n", path_full);
list_add(&attr->node, &attr_list);
if (S_ISLNK(statbuf.st_mode)) {
/* links return the last element of the target path */
- char link_target[PATH_SIZE];
+ char link_target[UTIL_PATH_SIZE];
int len;
const char *pos;
pos = strrchr(link_target, '/');
if (pos != NULL) {
dbg(udev, "cache '%s' with link value '%s'\n", path_full, value);
- strlcpy(attr->value_local, &pos[1], sizeof(attr->value_local));
+ util_strlcpy(attr->value_local, &pos[1], sizeof(attr->value_local));
attr->value = attr->value_local;
}
}
/* got a valid value, store and return it */
value[size] = '\0';
- remove_trailing_chars(value, '\n');
+ util_remove_trailing_chars(value, '\n');
dbg(udev, "cache '%s' with attribute value '%s'\n", path_full, value);
- strlcpy(attr->value_local, value, sizeof(attr->value_local));
+ util_strlcpy(attr->value_local, value, sizeof(attr->value_local));
attr->value = attr->value_local;
out:
int sysfs_lookup_devpath_by_subsys_id(struct udev *udev, char *devpath_full, size_t len, const char *subsystem, const char *id)
{
size_t sysfs_len;
- char path_full[PATH_SIZE];
+ char path_full[UTIL_PATH_SIZE];
char *path;
struct stat statbuf;
- sysfs_len = strlcpy(path_full, udev_get_sys_path(udev), sizeof(path_full));
+ sysfs_len = util_strlcpy(path_full, udev_get_sys_path(udev), sizeof(path_full));
path = &path_full[sysfs_len];
if (strcmp(subsystem, "subsystem") == 0) {
- strlcpy(path, "/subsystem/", sizeof(path_full) - sysfs_len);
- strlcat(path, id, sizeof(path_full) - sysfs_len);
+ util_strlcpy(path, "/subsystem/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, id, sizeof(path_full) - sysfs_len);
if (stat(path_full, &statbuf) == 0)
goto found;
- strlcpy(path, "/bus/", sizeof(path_full) - sysfs_len);
- strlcat(path, id, sizeof(path_full) - sysfs_len);
+ util_strlcpy(path, "/bus/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, id, sizeof(path_full) - sysfs_len);
if (stat(path_full, &statbuf) == 0)
goto found;
goto out;
- strlcpy(path, "/class/", sizeof(path_full) - sysfs_len);
- strlcat(path, id, sizeof(path_full) - sysfs_len);
+ util_strlcpy(path, "/class/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, id, sizeof(path_full) - sysfs_len);
if (stat(path_full, &statbuf) == 0)
goto found;
}
if (strcmp(subsystem, "module") == 0) {
- strlcpy(path, "/module/", sizeof(path_full) - sysfs_len);
- strlcat(path, id, sizeof(path_full) - sysfs_len);
+ util_strlcpy(path, "/module/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, id, sizeof(path_full) - sysfs_len);
if (stat(path_full, &statbuf) == 0)
goto found;
goto out;
}
if (strcmp(subsystem, "drivers") == 0) {
- char subsys[NAME_SIZE];
+ char subsys[UTIL_NAME_SIZE];
char *driver;
- strlcpy(subsys, id, sizeof(subsys));
+ util_strlcpy(subsys, id, sizeof(subsys));
driver = strchr(subsys, ':');
if (driver != NULL) {
driver[0] = '\0';
driver = &driver[1];
- strlcpy(path, "/subsystem/", sizeof(path_full) - sysfs_len);
- strlcat(path, subsys, sizeof(path_full) - sysfs_len);
- strlcat(path, "/drivers/", sizeof(path_full) - sysfs_len);
- strlcat(path, driver, sizeof(path_full) - sysfs_len);
+ util_strlcpy(path, "/subsystem/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, subsys, sizeof(path_full) - sysfs_len);
+ util_strlcat(path, "/drivers/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, driver, sizeof(path_full) - sysfs_len);
if (stat(path_full, &statbuf) == 0)
goto found;
- strlcpy(path, "/bus/", sizeof(path_full) - sysfs_len);
- strlcat(path, subsys, sizeof(path_full) - sysfs_len);
- strlcat(path, "/drivers/", sizeof(path_full) - sysfs_len);
- strlcat(path, driver, sizeof(path_full) - sysfs_len);
+ util_strlcpy(path, "/bus/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, subsys, sizeof(path_full) - sysfs_len);
+ util_strlcat(path, "/drivers/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, driver, sizeof(path_full) - sysfs_len);
if (stat(path_full, &statbuf) == 0)
goto found;
}
goto out;
}
- strlcpy(path, "/subsystem/", sizeof(path_full) - sysfs_len);
- strlcat(path, subsystem, sizeof(path_full) - sysfs_len);
- strlcat(path, "/devices/", sizeof(path_full) - sysfs_len);
- strlcat(path, id, sizeof(path_full) - sysfs_len);
+ util_strlcpy(path, "/subsystem/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, subsystem, sizeof(path_full) - sysfs_len);
+ util_strlcat(path, "/devices/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, id, sizeof(path_full) - sysfs_len);
if (stat(path_full, &statbuf) == 0)
goto found;
- strlcpy(path, "/bus/", sizeof(path_full) - sysfs_len);
- strlcat(path, subsystem, sizeof(path_full) - sysfs_len);
- strlcat(path, "/devices/", sizeof(path_full) - sysfs_len);
- strlcat(path, id, sizeof(path_full) - sysfs_len);
+ util_strlcpy(path, "/bus/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, subsystem, sizeof(path_full) - sysfs_len);
+ util_strlcat(path, "/devices/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, id, sizeof(path_full) - sysfs_len);
if (stat(path_full, &statbuf) == 0)
goto found;
- strlcpy(path, "/class/", sizeof(path_full) - sysfs_len);
- strlcat(path, subsystem, sizeof(path_full) - sysfs_len);
- strlcat(path, "/", sizeof(path_full) - sysfs_len);
- strlcat(path, id, sizeof(path_full) - sysfs_len);
+ util_strlcpy(path, "/class/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, subsystem, sizeof(path_full) - sysfs_len);
+ util_strlcat(path, "/", sizeof(path_full) - sysfs_len);
+ util_strlcat(path, id, sizeof(path_full) - sysfs_len);
if (stat(path_full, &statbuf) == 0)
goto found;
out:
return 0;
found:
if (S_ISLNK(statbuf.st_mode))
- sysfs_resolve_link(udev, path, sizeof(path_full) - sysfs_len);
- strlcpy(devpath_full, path, len);
+ resolve_sys_link(udev, path, sizeof(path_full) - sysfs_len);
+ util_strlcpy(devpath_full, path, len);
return 1;
}