libs/libudev-fbsd/patches/101-add-stub-udev_device_new_from_subsystem_sysname.patch

   1 --- a/src/libudev.c
   2 +++ b/src/libudev.c
   3 @@ -26,6 +26,7 @@ struct udev_device {
   4         struct udev *udev;
   5         int refcount;
   6         char syspath[32];
   7 +       char sysfspath[64];
   8         dev_t devnum;
   9         char const *sysname;
  10         char const *action;
  11 @@ -115,6 +116,29 @@ udev_device_new_from_devnum(struct udev
  12         return NULL;
  13  }
  14
  15 +struct udev_device *
  16 +udev_device_new_from_subsystem_sysname(
  17 +    struct udev *udev, const char *subsystem, const char *sysname)
  18 +{
  19 +       struct udev_device *u;
  20 +       char sysfsname[64];
  21 +       struct stat st;
  22 +
  23 +       snprintf(sysfsname, sizeof(sysfsname), "/sys/bus/%s/devices/%s/", subsystem, sysname);
  24 +       if (stat(sysfsname, &st) == 0)
  25 +       {
  26 +               char sysfsdev[64];
  27 +               u = calloc(1, sizeof(struct udev_device));
  28 +               strncpy(u->sysfspath, sysfsname, sizeof(u->sysfspath));
  29 +
  30 +               return u;
  31 +       }
  32 +       else
  33 +       {
  34 +               return NULL;
  35 +       }
  36 +}
  37 +
  38  char const *
  39  udev_device_get_devnode(struct udev_device *udev_device)
  40  {
  41 @@ -132,6 +156,20 @@ udev_device_get_devnum(struct udev_devic
  42  char const *
  43  udev_device_get_driver(struct udev_device *udev_device)
  44  {
  45 +       if (udev_device->sysfspath)
  46 +       {
  47 +               char driverlnp[64];
  48 +               char driverlnk[32];
  49 +               snprintf(driverlnp, sizeof(driverlnp), "%s/driver",
  50 +                        udev_device->sysfspath);
  51 +               if (readlink(driverlnp, driverlnk, sizeof(driver)))
  52 +               {
  53 +                       char *drivernm;
  54 +                       drivernm = strrchr(driverlnk, '/');
  55 +                       if (drivernm)
  56 +                               return ++drivernm;
  57 +               }
  58 +       }
  59         return NULL;
  60  }
  61
  62 --- a/src/libudev.h
  63 +++ b/src/libudev.h
  64 @@ -30,6 +30,8 @@ struct udev_device *udev_device_new_from
  65      struct udev *udev, char const *syspath);
  66  struct udev_device *udev_device_new_from_devnum(
  67      struct udev *udev, char type, dev_t devnum);
  68 +struct udev_device *udev_device_new_from_subsystem_sysname(
  69 +    struct udev *udev, const char *subsystem, const char *sysname);
  70  char const *udev_device_get_driver(struct udev_device *udev_device);
  71  char const *udev_device_get_syspath(struct udev_device *udev_device);
  72  char const *udev_device_get_sysname(struct udev_device *udev_device);