use readlink

2020-07-25 16:41:10 +03:00
parent c7cc417701
commit d4a60c10c0
1 changed files with 5 additions and 1 deletions
@@ -301,13 +301,17 @@ int udev_device_set_sysattr_value(struct udev_device *udev_device, const char *s
 static const char *udev_device_read_symlink(struct udev_device *udev_device, const char *name)
 {
    char link[PATH_MAX], path[PATH_MAX];
+    ssize_t len;

    snprintf(path, sizeof(path), "%s/%s", udev_device_get_syspath(udev_device), name);

-    if (!realpath(path, link)) {
+    len = readlink(path, link, sizeof(link));
+
+    if (len == -1) {
        return NULL;
    }

+    link[len] = '\0';
    return strrchr(link, '/') + 1;
 }