diff options
Diffstat (limited to 'udevdb.c')
| -rw-r--r-- | udevdb.c | 25 |
1 files changed, 24 insertions, 1 deletions
@@ -124,7 +124,7 @@ int udevdb_init(int init_flag) dbg("unable to initialize in-memory database"); else dbg("unable to initialize database at '%s'", udev_db_filename); - return -EINVAL; + return -EACCES; } return 0; } @@ -137,7 +137,30 @@ int udevdb_open_ro(void) udevdb = tdb_open(udev_db_filename, 0, 0, O_RDONLY, 0); if (udevdb == NULL) { dbg("unable to open database at '%s'", udev_db_filename); + return -EACCES; + } + return 0; +} + +void (*user_record_callback) (char *path, struct udevice *dev); + +static int traverse_callback(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, void *state) +{ + user_record_callback((char*) key.dptr, (struct udevice*) dbuf.dptr); + return 0; +} + +/** + * udevdb_dump: dumps whole database by passing record data to user function + * @user_record_handler: user function called for every record in the database + */ +int udevdb_dump(void (*user_record_handler) (char *path, struct udevice *dev)) +{ + if (user_record_handler == NULL) { + dbg("invalid user record handling function"); return -EINVAL; } + user_record_callback = user_record_handler; + tdb_traverse(udevdb, traverse_callback, NULL); return 0; } |